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X5083
Data Sheet September 16, 2005 FN8127.2
CPU Supervisor with 8Kbit SPI EEPROM
This device combines four popular functions, Power-on Reset Control, Watchdog Timer, Supply Voltage Supervision, and Block Lock Serial EEPROM Memory in one package. This combination lowers system cost, reduces board space requirements, and increases reliability. Applying power to the device activates the power-on reset circuit which holds RESET active for a period of time. This allows the power supply and oscillator to stabilize before the processor can execute code. The Watchdog Timer provides an independent protection mechanism for microcontrollers. When the microcontroller fails to restart a timer within a selectable time out interval, the device activates the RESET signal. The user selects the interval from three preset values. Once selected, the interval does not change, even after cycling the power. The device's low VCC detection circuitry protects the user's system from low voltage conditions, resetting the system when VCC falls below the minimum VCC trip point. RESET is asserted until VCC returns to the proper operating level and stabilizes. Five industry standard VTRIP thresholds are available, however, Intersil's unique circuits allow the threshold to be reprogrammed to meet custom requirements or to finetune the threshold for applications requiring higher precision.
Features
* Low VCC detection and reset assertion - Four standard reset threshold voltages 4.63V, 4.38V, 2.93V, 2.63V - Re-program low VCC reset threshold voltage using special programming sequence - Reset signal valid to VCC = 1V * Selectable time out watchdog timer * Long battery life with low power consumption - <50A max standby current, watchdog on - <1A max standby current, watchdog off - <400A max active current during read * 8Kbits of EEPROM * Save critical data with Block LockTM memory - Block lock first or last page, any 1/4 or lower 1/2 of EEPROM array * Built-in inadvertent write protection - Write enable latch - Write protect pin * SPI Interface - 3.3MHz clock rate * Minimize programming time - 16 byte page write mode - 5ms write cycle time (typical) * SPI modes (0,0 & 1,1)
Pinouts
8 Ld TSSOP
RESET VCC CS/WDI SO 1 2 3 4 8 7 6 5 SCK SI VSS WP
* Available packages - 8 Ld TSSOP, 8 Ld SOIC, 8 Ld PDIP * Pb-free plus anneal available (RoHS compliant)
X5083
Applications
8 Ld SOIC, 8 Ld PDIP
CS/WDI SO WP VSS 1 8 VCC RESET SCK SI
* Communications Equipment - Routers, Hubs, Switches - Set Top Boxes * Industrial Systems - Process Control - Intelligent Instrumentation * Computer Systems - Desktop Computers - Network Servers * Battery Powered Equipment
2 7 3 X5083 6 4 5
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved All other trademarks mentioned are the property of their respective owners.
X5083 Typical Application
2.7-5.0V VCC X5083 RESET CS SCK SI SO WP VSS 10K
VCC uC
RESET SPI
VSS
Block Diagram
POR AND LOW VOLTAGE RESET GENERATION
VCC VTRIP
+ -
RESET (X5083)
RESET & WATCHDOG TIMEBASE
X5083
STANDARD VTRIP LEVEL SUFFIX
WATCHDOG TRANSITION DETECTOR
WATCHDOG TIMER RESET
4.63V (+/-2.5%) 4.38V (+/-2.5%)
-4.5A -4.5 -2.7A -2.7
CS/WDI SI SO SCK WP COMMAND DECODE & CONTROL LOGIC PROTECT LOGIC
STATUS REGISTER
2.93V (+/-2.5%) 2.63V (+/-2.5%)
EEPROM ARRAY 8KBITS
See "Ordering Information" on page 3 for more details For Custom Settings, call Intersil.
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X5083 Ordering Information
PART NUMBER RESET (ACTIVE LOW) X5083P-4.5A X5083PI-4.5A X5083S8-4.5A X5083S8Z-4.5A (Note) X5083S8I-4.5A* X5083S8IZ-4.5A* (Note) X5083V8-4.5A X5083V8I-4.5A X5083P X5083PI X5083SI X5083S8 X5083S8Z (Note) X5083S8I* X5083S8IZ* (Note) X5083V8 X5083V8I X5083P-2.7A X5083PI-2.7A X5083S8-2.7A X5083S8Z-2.7A (Note) X5083S8I-2.7A X5083S8IZ-2.7A (Note) X5083V8-2.7A X5083V8I-2.7A X5083P-2.7 X5083PI-2.7 X5083S8-2.7* X5083S8Z-2.7* (Note) X5083S8I-2.7* X5083S8IZ-2.7* (Note) X5083V8-2.7 X5083V8I-2.7 X5083V8IZ-2.7 (Note) PART MARKING X5083P AL X5083P AM X5083 AL X5083 Z AL X5083 AM X5083 Z AM 583AL 583AM X5083P X5083P I X5083 I X5083 X5083 Z X5083 I X5083 Z I X583 583I X5083P AN X5083P AP X5083 AN X5083 Z AN X5083 AP X5083 Z AP 583AN 583AP X5083P F X5083P G X5083 F X5083 Z F X5083 G X5083 Z G 583F 583G 2.7-5.5 2.55-2.7 2.7-5.5 2.85-3.0 4.5-5.5 4.25-4.5 VCC RANGE (V) 4.5-5.5 VTRIP RANGE 4.5-4.75 TEMPERATURE RANGE (C) 0 to 70 -40 to 85 0 to 70 0 to 70 -40 to 85 -40 to 85 0 to 70 -40 to 85 0 to 70 -40 to 85 -40 to 85 0 to 70 0 to 70 -40 to 85 -40 to 85 0 to 70 -40 to 85 0 to 70 -40 to 85 0 to 70 0 to 70 -40 to 85 -40 to 85 0 to 70 -40 to 85 0 to 70 -40 to 85 0 to 70 0 to 70 -40 to 85 -40 to 85 0 to 70 -40 to 85 -40 to 85 PACKAGE 8 Ld PDIP 8 Ld PDIP 8 Ld SOIC 8 Ld SOIC (Pb-free) 8 Ld SOIC 8 Ld SOIC (Pb-free) 8 Ld TSSOP 8 Ld TSSOP 8 Ld PDIP 8 Ld PDIP 8 Ld SOIC 8 Ld SOIC 8 Ld SOIC (Pb-free) 8 Ld SOIC 8 Ld SOIC (Pb-free) 8 Ld TSSOP 8 Ld TSSOP 8 Ld PDIP 8 Ld PDIP 8 Ld SOIC 8 Ld SOIC (Pb-free) 8 Ld SOIC 8 Ld SOIC (Pb-free) 8 Ld TSSOP 8 Ld TSSOP 8 Ld PDIP 8 Ld PDIP 8 Ld SOIC 8 Ld SOIC (Pb-free) 8 Ld SOIC 8 Ld SOIC (Pb-free) 8 Ld TSSOP 8 Ld TSSOP 8 Ld TSSOP (Pb-free)
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. *Add "-T1" suffix for tape and reel.
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X5083 Pin Description
PIN (SOIC/ PDIP) 1 PIN TSSOP 3 NAME CS/WDI FUNCTION Chip Select Input. CS HIGH, deselects the device and the SO output pin is at a high impedance state. Unless a nonvolatile write cycle is underway, the device will be in the standby power mode. CS LOW enables the device, placing it in the active power mode. Prior to the start of any operation after power-up, a HIGH to LOW transition on CS is required. Watchdog Input. A HIGH to LOW transition on the WDI pin restarts the Watchdog timer. The absence of a HIGH to LOW transition within the watchdog time out period results in RESET going active. Serial Output. SO is a push/pull serial data output pin. A read cycle shifts data out on this pin. The falling edge of the serial clock (SCK) clocks the data out. Serial Input. SI is a serial data input pin. Input all opcodes, byte addresses, and memory data on this pin. The rising edge of the serial clock (SCK) latches the input data. Send all opcodes (Table 1), addresses and data MSB first. Serial Clock. The Serial Clock controls the serial bus timing for data input and output. The rising edge of SCK latches in the opcode, address, or data bits present on the SI pin. The falling edge of SCK changes the data output on the SO pin. Write Protect. When WP is LOW, nonvolatile write operations to the memory are prohibited. This "Locks" the memory to protect it against inadvertent changes when WP is HIGH, the device operates normally. Ground Supply Voltage Reset Output. RESET is an active LOW, open drain output which goes active whenever VCC falls below the minimum VCC sense level. It will remain active until VCC rises above the minimum VCC sense level for 250ms. RESET goes active if the watchdog timer is enabled and CS remains either HIGH or LOW longer than the selectable watchdog time out period. A falling edge of CS will reset the watchdog timer. RESET goes active on power-up at about 1V and remains active for 250ms after the power supply stabilizes.
2 5 6
4 7 8
SO SI SCK
3 4 8 7
5 6 2 1
WP VSS VCC RESET
Principles of Operation
Power-on Reset
Application of power to the X5083 activates a power-on reset circuit. This circuit goes LOW at 1V and pulls the RESET pin active. This signal prevents the system microprocessor from starting to operate with insufficient voltage or prior to stabilization of the oscillator. RESET active also blocks communication to the device through the SPI interface. When VCC exceeds the device VTRIP value for 200ms (nominal) the circuit releases RESET, allowing the processor to begin executing code. While VCC < VTRIP communications to the device are inhibited.
Watchdog Timer
The watchdog timer circuit monitors the microprocessor activity by monitoring the WDI input. The microprocessor must toggle the CS/WDI pin periodically to prevent a RESET signal. The CS/WDI pin must be toggled from HIGH to LOW prior to the expiration of the watchdog time out period. The state of two nonvolatile control bits in the status register determine the watchdog timer period. The microprocessor can change these watchdog bits with no action taken by the microprocessor these bits remain unchanged, even after total power failure.
VCC Threshold Reset Procedure
The X5083 is shipped with a standard VCC threshold (VTRIP) voltage. This value will not change over normal operating and storage conditions. However, in applications where the standard VTRIP is not exactly right, or if higher precision is needed in the VTRIP value, the X5083 threshold may be adjusted. The procedure is described below, and uses the application of a high voltage control signal.
Low Voltage Monitoring
During operation, the X5083 monitors the VCC level and asserts RESET if supply voltage falls below a preset minimum VTRIP. The RESET signal prevents the microprocessor from operating in a power fail or brownout condition and terminates any SPI communication in progress. The RESET signal remains active until the voltage drops below 1V. It also remains active until VCC returns and exceeds VTRIP for 200ms. When VCC falls below VTRIP, any communications in progress are terminated and communications are inhibited until VCC exceeds VTRIP for tPURST.
Setting the VTRIP Voltage
This procedure is used to set the VTRIP to a higher voltage value. For example, if the current VTRIP is 4.4V and the new VTRIP is 4.6V, this procedure will directly make the change. If the new setting is to be lower than the current setting, then it is necessary to reset the trip point before setting the new value.
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X5083
To set the new VTRIP voltage, apply the desired VTRIP threshold voltage to the VCC pin and tie the WP pin to the programming voltage VP. Then send a WREN command, followed by a write of Data 00h to address 01h. CS going HIGH on the write operation initiates the VTRIP programming sequence. Bring WP LOW to complete the operation. Note: This operation also writes 00h to array address 01h. This procedure must be used to set the voltage to a lower value. To reset the new VTRIP voltage, apply the desired VTRIP threshold voltage to the Vcc pin and tie the WP pin to the programming voltage VP. Then send a WREN command, followed by a write of data 00h to address 03h. CS going HIGH on the write operation initiates the VTRIP programming sequence. Bring WP LOW to complete the operation. Note: This operation also writes 00h to array address 03h.
Resetting the VTRIP Voltage
This procedure is used to set the VTRIP to a "native" voltage level. For example, if the current VTRIP is 4.4V and the new VTRIP must be 4.0V, then the VTRIP must be reset. When VTRIP is reset, the new VTRIP is something less than 1.7V.
WP
VP = 15-18V
CS 01234567 SCK 16 Bits SI 06h WREN 02h Write 0001h Address 00h Data 0 1 2 3 4 5 6 7 8 9 10 20 21 22 23
FIGURE 1. SET VTRIP LEVEL SEQUENCE (VCC = DESIRED VTRIP VALUE)
WP
VP = 15-18V
CS 01234567 SCK 16 Bits SI 06h WREN 02h Write 0003h Address 00h Data 0 1 2 3 4 5 6 7 8 9 10 20 21 22 23
FIGURE 2. RESET VTRIP LEVEL SEQUENCE (VCC > 3V. WP = 15-18V)
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X5083
4.7K VP Adjust VTRIP Adj. 1 2 3 4 X5083 8 7 6 5 RESET C
SCK SI SO CS
Run
FIGURE 3. SAMPLE VTRIP RESET CIRCUIT
VTRIP Programming
Execute Reset VTRIP Sequence
Set VCC = VCC Applied = Desired VTRIP
New VCC Applied = Old VCC Applied + Error
Execute Set VTRIP Sequence
New VCC Applied = Old VCC Applied - Error
Apply 5V to VCC
Execute Reset VTRIP Sequence
Decrement VCC (VCC = VCC - 50mV)
NO
RESET pin goes active? YES
Error -Emax
Measured VTRIP Desired VTRIP
Error Emax
-Emax < Error < Emax DONE Emax = Maximum Desired Error
FIGURE 4. VTRIP PROGRAMMING SEQUENCE
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X5083
SPI Serial Memory
The memory portion of the device is a CMOS serial EEPROM array with Intersil's block lock protection. The array is internally organized as x 8. The device features a Serial Peripheral Interface (SPI) and software protocol allowing operation on a simple four-wire bus. The device utilizes Intersil's proprietary Direct WriteTM cell, providing a minimum endurance of 100,000 cycles and a minimum data retention of 100 years. The device is designed to interface directly with the synchronous Serial Peripheral Interface (SPI) of many popular microcontroller families. The device monitors the bus and asserts RESET output if the watchdog timer is enabled and there is no bus activity within the user selectable time out period or the supply voltage falls below a preset minimum VTRIP. The device contains an 8-bit instruction register. It is accessed via the SI input, with data being clocked in on the rising edge of SCK. CS must be LOW during the entire operation. All instructions (Table 1), addresses and data are transferred MSB first. Data input on the SI line is latched on the first rising edge of SCK after CS goes LOW. Data is output on the SO line by the falling edge of SCK. SCK is static, allowing the user to stop the clock and then start it again to resume operations where left off.
Write Enable Latch
The device contains a Write Enable Latch. This latch must be SET before a Write Operation is initiated. The WREN instruction will set the latch and the WRDI instruction will reset the latch (Figure 7). This latch is automatically reset upon a power-up condition and after the completion of a valid Write Cycle.
Status Register
The RDSR instruction provides access to the status register. The status register may be read at any time, even during a write cycle. The status register is formatted as follows.
Status Register/Block Lock/WDT Byte
7 0 6 0 5 0 4 WD1 3 WD0 2 BL2 1 BL1 0 BL0
Block Lock Memory
Intersil's block lock memory provides a flexible mechanism to store and lock system ID and parametric information. There are seven distinct block lock memory areas within the array which vary in size from one page to as much as half of the entire array. These areas and associated address ranges are block locked by writing the appropriate two byte block lock instruction to the device as described in Table 1 and Figure 9. Once a block lock instruction has been completed, that block lock setup is held in the nonvolatile status register until the next block lock instruction is issued. The sections of the memory array that are block locked can be read but not written until block lock is removed or changed.
TABLE 1. INSTRUCTION SET AND BLOCK LOCK PROTECTION BYTE DEFINITION INSTRUCTION FORMAT 0000 0110 0000 0100 0000 0001 INSTRUCTION NAME AND OPERATION WREN: set the write enable latch (write enable operation) WRDI: reset the write enable latch (write disable operation) Write status instruction--followed by: Block lock/WDT byte: (See Figure 1) 000WD1 WD2000 --->no block lock: 00h-00h--->none of the array 000WD1 WD2001 --->block lock Q1: 0000h-00FFh--->lower quadrant (Q1) 000WD1 WD2010 --->block lock Q2: 0100h-01FFh--->Q2 000WD1 WD2011 --->block lock Q3: 0200h-02FFh--->Q3 000WD1 WD2100 --->block lock Q4: 0300h-03FFh--->upper quadrant (Q4) 000WD1 WD2101 --->block lock H1: 0000h-01FFh--->lower half of the array (H1) 000WD1 WD2110 --->block lock P0: 0000h-000Fh--->lower page (P0) 000WD1 WD2111 --->block lock Pn: 03F0h-03FFh--->upper page (PN) READ STATUS: reads status register & provides write in progress status on SO pin WRITE: write operation followed by address and data READ: read operation followed by address
0000 0101 0000 0010 0000 0011
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X5083
Watchdog Timer
The watchdog timer bits, WD0 and WD1, select the watchdog time out period. These nonvolatile bits are programmed with the WRSR instruction. A change to the Watchdog Timer, either setting a new time out period or turning it off or on, takes effect, following either the next command (read or write) or cycling the power to the device. The recommended procedure for changing the Watch-dog Timer settings is to do a WREN, followed by a write status register command. Then execute a soft-ware loop to read the status register until the MSB of the status byte is zero. A valid alternative is to do a WREN, followed by a write status register command. Then wait 10ms and do a read status command.
TABLE 2. WATCHDOG TIMER DEFINITION STATUS REGISTER BITS WD1 0 0 1 1 WD0 0 1 0 1 WATCHDOG TIME OUT (TYPICAL) 1.4s 600ms 200ms disabled (factory default)
To write data to the EEPROM memory array, the user then issues the WRITE instruction followed by the 16 bit address and then the data to be written. Any unused address bits are specified to be "0's". The WRITE operation minimally takes 32 clocks. CS must go low and remain low for the duration of the operation. If the address counter reaches the end of a page and the clock continues, the counter will roll back to the first address of the same page and overwrite any data that may have been previously written. For a write operation (byte or page write) to be completed, CS can only be brought HIGH after bit 0 of the last data byte to be written is clocked in. If it is brought HIGH at any other time, the write operation will not be completed (Figure 8). To write to the status register, the WRSR instruction is followed by the data to be written (Figure 9). Data bits 5, 6 and 7 must be "0".
Read Status Operation
If there is not a nonvolatile write in progress, the read status instruction returns the block lock setting from the status register which contains the watchdog timer bits WD1, WD0, and the block lock bits IDL2-IDL0 (Figure 6). The block lock bits define the block lock condition (Table 1). The watchdog timer bits set the operation of the watchdog timer (Table 2). The other bits are reserved and will return '0' when read. See Figure 6. During an internal nonvolatile write operaiton, the Read Status Instruction returns a HIGH on SO in the first bit following the RDSR instruction (the MSB). The remaining bits in the output status byte are undefined. Repeated Read Status Instructions return the MSB as a `1' until the nonvolatile write cycle is complete. When the nonvolatile write cycle is completed, the RDSR instruction returns a `0' in the MSB position with the remaining bits of the status register undefined. Subsequent RDSR instructions return the Status Register Contents. See Figure 10.
Read Sequence
When reading from the EEPROM memory array, CS is first pulled low to select the device. The 8-bit READ instruction is transmitted to the device, followed by the 16-bit address. After the READ opcode and address are sent, the data stored in the memory at the selected address is shifted out on the SO line. The data stored in memory at the next address can be read sequentially by continuing to provide clock pulses. The address is automatically incremented to the next higher address after each byte of data is shifted out. When the highest address is reached, the address counter rolls over to address $0000 allowing the read cycle to be continued indefinitely. The read operation is terminated by taking CS high. Refer to the read EEPROM array sequence (Figure 5). To read the status register, the CS line is first pulled low to select the device followed by the 8-bit RDSR instruction. After the RDSR opcode is sent, the contents of the status register are shifted out on the SO line. Refer to the read status register sequence (Figure 6).
RESET Operation
The RESET output is designed to go LOW whenever VCC has dropped below the minimum trip point and/or the watchdog timer has reached its programmable time out limit. The RESET output is an open drain output and requires a pull up resistor.
Operational Notes
The device powers-up in the following state: * The device is in the low power standby state. * A HIGH to LOW transition on CS is required to enter an active state and receive an instruction. * SO pin is high impedance. * The write enable latch is reset. * Reset signal is active for tPURST.
Write Sequence
Prior to any attempt to write data into the device, the "Write Enable" Latch (WEL) must first be set by issuing the WREN instruction (Figure 7). CS is first taken LOW, then the WREN instruction is clocked into the device. After all eight bits of the instruction are transmitted, CS must then be taken HIGH. If the user continues the write operation without taking CS HIGH after issuing the WREN instruction, the write operation will be ignored. 8
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X5083
Data Protection
The following circuitry has been included to prevent inadvertent writes: * A WREN instruction must be issued to set the write enable latch. * CS must come HIGH at the proper clock count in order to start a nonvolatile write cycle. * When VCC is below VTRIP, communications to the device are inhibited.
CS
0 SCK
1
2
3
4
5
6
7
8
9
20 21 22 23 24 25 26 27 28 29 30
Read Instruction (1 Byte) SI
Byte Address (2 Byte) 15 14 3 2 1 0
Data Out
High Impedance SO
7 FIGURE 5. READ OPERATION SEQUENCE
6
5
4
3
2
1
0
CS
0 SCK
1
2
3
4
5
6
7
... ...
W D 1 W D 0 B L 2 B L 1 B L 0
Read Status Instruction SI
SO
...
SO = Status Reg When no Nonvolatile Write Cycle FIGURE 6. READ STATUS OPERATION SEQUENCE
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X5083
CS
0 SCK
1
2
3
4
5
6
7
Instruction (1 Byte) SI
SO
High Impedance
FIGURE 7. WREN/WRDI SEQUENCE
CS 0 SCK Instruction SI 16 Bit Address 15 14 13 3 2 1 0 7 6 Data Byte 1 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 20 21 22 23 24 25 26 27 28 29 30 31
CS 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 SCK Data Byte 2 SI 7 6 5 4 3 2 1 0 7 6 Data Byte 3 5 4 3 2 1 0 6 5 Data Byte N 4 3 2 1 0
FIGURE 8. EEPROM ARRAY WRITE SEQUENCE
CS 0 SCK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Instruction SI 6 5 4
Data Byte 3 2 B L 2 1 B L 1 0 B L 0 WW DD 10
SO
High Impedance
FIGURE 9. STATUS REGISTER WRITE SEQUENCE
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X5083
CS
01234567
01234567
SCK
READ STATUS INSTRUCTION READ STATUS INSTRUCTION
SI
NONVOLATILE WRITE IN PROGRESS
SO
SO MSB HIGH while in the Nonvolatile write cycle SO MSB still HIGH indicates Nonvolatile write cycle still in progress
CS
01234567
01234567
SCK
READ STATUS INSTRUCTION READ STATUS INSTRUCTION
SI
NONVOLATILE WRITE ENDS
43210 WD1 WD0 BL2 BL1 BL0
FN8127.2 September 16, 2005
SO
1st detected SO MSB LOW indicates end of Nonvolatile write cycle
FIGURE 10. READ NONVOLATILE WRITE STATUS
11
X5083
tWC
CS
0 SCK
1
2
3
4
5
6
7
NEXT INSTRUCTION SI
Non-volatile Write Operation
Wait tWC after a write for new operation, if not using polling procedure
FIGURE 11. END OF NONVOLATILE WRITE (NO POLLING)
Symbol Table
WAVEFORM INPUTS Must be steady May change from LOW to HIGH May change from HIGH to LOW Don't Care: Changes Allowed N/A OUTPUTS Will be steady Will change from LOW to HIGH Will change from HIGH to LOW Changing: State Not Known Center Line is High Impedance
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X5083
Absolute Maximum Ratings
Temperature Under Bias . . . . . . . . . . . . . . . . . . . . . .-65C to 135C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65C to 150C Voltage on Any Pin with Respect To Vss . . . . . . . . . . . . . -1.0V to 7V D.C. Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA Lead Temperature (Soldering, 10s) . . . . . . . . . . . . . . . . . . . . . 300C
Operating Conditions
Temperature Range Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to 70C Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40C to 85C VCC Range -2.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V Blank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V to 5.5V
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
DC Electrical Specifications
SYMBOL ICC1 ICC2 ISB1 ISB2 ISB3 ILI ILO PARAMETER
(Over the recommended operating conditions unless otherwise specified.) LIMITS TEST CONDITIONS SCK = VCC x 0.1/VCC x 0.9 @ 5MHz, SO = Open SCK = VCC x 0.1/VCC x 0.9 @ 5MHz, SO = Open MIN TYP MAX 5 0.4 1 50 20 0.1 0.1 -0.5 VCC x 0.7 VCC > 3.3V, IOL = 2.1mA 2V < VCC 3.3V, IOL = 1mA VCC 2V, IOL = 0.5mA VCC > 3.3V, IOH = -1.0mA 2V < VCC 3.3V, IOH = -0.4mA VCC 2V, IOH = -0.25mA IOL = 1mA VCC - 0.8 VCC - 0.4 VCC - 0.2 0.4 10 10 VCC x 0.3 VCC + 0.5 0.4 0.4 0.4 UNIT mA mA A A A A A V V V V V V V V V
VCC Write Current (Active) VCC Read Current (Active)
VCC Standby Current WDT = OFF CS = VCC, VIN = VSS or VCC, VCC = 5.5V VCC Standby Current WDT = ON VCC Standby Current WDT = ON Input Leakage Current Output Leakage Current CS = VCC, VIN = VSS or VCC, VCC = 5.5V CS = VCC, VIN = VSS or VCC, VCC = 3.6V VIN = VSS to VCC VOUT = VSS to VCC
VIL (Note 1) Input LOW Voltage VIH (Note 1) Input HIGH Voltage VOL1 VOL2 VOL3 VOH1 VOH2 VOH3 VOLRS Output LOW Voltage Output LOW Voltage Output LOW Voltage Output HIGH Voltage Output HIGH Voltage Output HIGH Voltage Reset Output LOW Voltage
Power-Up Timing
SYMBOL tPUR (Note 2) tPUW (Note 2)
.
PARAMETER Power-up to read operation Power-up to write operation
MIN
MAX 1 5
UNIT ms ms
Capacitance TA = +25C, f = 1MHz, VCC = 5V
SYMBOL TEST MAX 8 6 UNIT pF pF CONDITIONS VOUT = 0V VIN = 0V COUT (Note 2) Output capacitance (SO, RESET, RESET) CIN (Note 2) NOTES: 1. VIL min. and VIH max. are for reference only and are not tested. 2. This parameter is periodically sampled and not 100% tested. Input capacitance (SCK, SI, CS, WP)
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X5083 Equivalent A.C. Load Circuit at 5V VCC
5V 5V
A.C. Test Conditions
Input pulse levels Input rise and fall times VCC x 0.1 to VCC x 0.9 10ns VCC x 0.5
1.64k
SO OUTPUT RESET 100pF
3.3k
Input and output timing level
1.64k
30pF
AC Electrical Specifications
SYMBOL DATA INPUT TIMING fSCK tCYC tLEAD tLAG tWH tWL tSU tH tRI (Note 3) tFI (Note 3) tCS tWC (Note 4) Clock frequency Cycle time CS lead time CS lag time Clock HIGH time Clock LOW time Data setup time Data hold time Input rise time Input fall time CS deselect time Write cycle time
(Over recommended operating conditions, unless otherwise specified) 2.7V-5.5V PARAMETER MIN MAX UNIT
0 300 150 150 130 130 20 20
3.3
MHz ns ns ns ns ns ns ns
2 2 100 10
s s ns ms
DATA OUTPUT TIMING fSCK tDIS tV tHO tRO (Note 3) tFO (Note 3) NOTES: 3. This parameter is periodically sampled and not 100% tested. 4. tWC is the time from the rising edge of CS after a valid write sequence has been sent to the end of the self-timed internal nonvolatile write cycle. Clock frequency Output disable time Output valid from clock low Output hold time Output rise time Output fall time 0 50 50 0 3.3 150 130 MHz ns ns ns ns ns
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FN8127.2 September 16, 2005
X5083
Serial Output Timing
CS tCYC SCK tV SO MSB Out MSB-1 Out tHO tWL LSB Out tDIS tWH tLAG
SI
ADDR LSB IN
Serial Input Timing
tCS CS tLEAD SCK tSU SI MSB IN tH tRI tFI LSB IN tLAG
SO
High Impedance
Power-Up and Power-Down Timing
VCC VTRIP 0 Volts tR RESET VTRIP tF tRPD
tPURST tPURST
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FN8127.2 September 16, 2005
X5083
RESET Output Timing
SYMBOL VTRIP PARAMETER Reset trip point voltage, X5083PT-4.5A (Note 6) Reset trip point voltage, X5083PT Reset trip point voltage, X5083PT-2.7A Reset trip point voltage, X5083PT-2.7 Power-up reset time out VCC detect to reset/output VCC fall time VCC rise time Reset valid VCC 0.1 0.1 1 MIN 4.5 4.25 2.85 2.55 100 TYP 4.63 4.38 2.93 2.63 200 MAX 4.75 4.5 3.00 2.7 280 500 UNIT V
tPURST tRPD (Note 5) tF (Note 5) tR (Note 5) VRVALID NOTES:
ms ns ns ns V
5. This parameter is periodically sampled and not 100% tested. 6. PT = Package/Temperature
CS vs. RESET Timing
CS tCST RESET tWDO tRST tWDO tRST
RESET Output Timing
SYMBOL tWDO PARAMETER Watchdog time out period, WD1 = 1, WD0 = 1(default) WD1 = 1, WD0 = 0 WD1 = 0, WD0 = 1 WD1 = 0, WD0 = 0 CS pulse width to reset the watchdog Reset time out MIN TYP OFF 200 600 1.4 MAX UNIT
100 450 1 400 100
300 800 2
ms ms sec ns
tCST tRST
200
300
ms
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FN8127.2 September 16, 2005
X5083
VTRIP Programming Timing Diagram
VCC (VTRIP)
VTRIP tTSU VP tTHD
VPE tVPS tVPH tVPO
tPCS
CS
tRP
SCK
SI 06h WREN 02h Write 0001h (set) 0003h (reset) Addr. 00 Data
VTRIP Programming Parameters
PARAMETER tVPS tVPH tPCS tTSU tTHD tWC tVPO tRP VP VTRAN Vtv NOTES: 7. VTRIP programming parameters are periodically sampled and are not 100% tested. 8. For custom VTRIP settings, Contact Factory. VTRIP program enable voltage setup time VTRIP program enable voltage hold time VTRIP programming CS inactive time VTRIP setup time VTRIP hold (stable) time VTRIP write cycle time VTRIP program enable voltage off time (between successive adjustments) VTRIP program recovery period (between successive adjustments) Programming voltage VTRIP programmed voltage range VTRIP program variation after programming (0-75C). (programmed at 25C) 0 10 15 2.0 -25 18 5.0 +25 DESCRIPTION MIN 1 1 1 1 10 10 MAX UNIT s s s s ms ms s ms V V mV
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FN8127.2 September 16, 2005
X5083 Packaging Information
8-Lead Plastic Dual In-Line Package Type P
0.430 (10.92) 0.360 (9.14)
0.260 (6.60) 0.240 (6.10) Pin 1 Index Pin 1 0.300 (7.62) Ref. 0.060 (1.52) 0.020 (0.51)
Half Shoulder Width On All End Pins Optional Seating Plane 0.150 (3.81) 0.125 (3.18)
0.145 (3.68) 0.128 (3.25) 0.025 (0.64) 0.015 (0.38) 0.065 (1.65) 0.045 (1.14) 0.020 (0.51) 0.016 (0.41)
0.110 (2.79) 0.090 (2.29)
.073 (1.84) Max.
0.325 (8.25) 0.300 (7.62)
Typ. 0.010 (0.25)
0 15
NOTE: 1. ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) 2. PACKAGE DIMENSIONS EXCLUDE MOLDING FLASH
18
FN8127.2 September 16, 2005
X5083 Packaging Information
8-Lead Plastic Small Outline Gull Wing Package Type S
0.150 (3.80) 0.228 (5.80) 0.158 (4.00) 0.244 (6.20) Pin 1 Index Pin 1
0.014 (0.35) 0.019 (0.49) 0.188 (4.78) 0.197 (5.00) (4X) 7
0.053 (1.35) 0.069 (1.75) 0.004 (0.19) 0.010 (0.25)
0.050 (1.27)
0.010 (0.25) X 45 0.020 (0.50)
0.050" Typical
0 - 8 0.0075 (0.19) 0.010 (0.25) 0.016 (0.410) 0.037 (0.937) 0.250"
0.050" Typical
FOOTPRINT
0.030" Typical 8 Places
NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS)
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FN8127.2 September 16, 2005
X5083 Packaging Information
8-Lead Plastic, TSSOP, Package Type V
.025 (.65) BSC
.169 (4.3) .252 (6.4) BSC .177 (4.5)
.114 (2.9) .122 (3.1) .047 (1.20) .0075 (.19) .0118 (.30) .002 (.05) .006 (.15)
.010 (.25) Gage Plane 0 - 8 .019 (.50) .029 (.75) Detail A (20X) (1.78) .031 (.80) .041 (1.05) See Detail "A" (0.42) (0.65) All Measurements Are Typical Seating Plane (4.16) (7.72)
NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS)
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com 20
FN8127.2 September 16, 2005

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