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X4003/X4005
CPU Supervisor
FEATURES * Selectable watchdog timer --Select 200ms, 600ms, 1.4s, off * Low VCC detection and reset assertion --Five standard reset threshold voltages nominal 4.62V, 4.38V, 2.92V, 2.68V, 1.75V --Adjust low VCC reset threshold voltage using special programming sequence --Reset signal valid to VCC = 1V * Low power CMOS --12A typical standby current, watchdog on --800nA typical standby current watchdog off --3mA active current * 400kHz I2C interface * 1.8V to 5.5V power supply operation * Available packages --8-lead SOIC --8-lead MSOP DESCRIPTION These devices combine three popular functions, Poweron Reset Control, Watchdog Timer, and Supply Voltage Supervision. 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/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/ 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/RESET is asserted until VCC returns to proper operating level and stabilizes. Five industry standard VTRIP thresholds are available; however, Xicor's unique circuits allow the threshold to be reprogrammed to meet custom requirements, or to fine-tune the threshold for applications requiring higher precision. BLOCK DIAGRAM
Watchdog Transition Detector WP SDA Data Register Command Decode & Control Logic VCC Threshold Reset logic VCC VTRIP + Power on and Low Voltage Reset Generation Watchdog Timer Reset RESET (X4003) Control Register Reset & Watchdog Timebase RESET (X4005)
SCL
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PIN CONFIGURATION
8-Pin JEDEC SOIC, MSOP NC NC RESET VSS 1 2 3 4 8 7 6 5 VCC WP SCL SDA
PIN DESCRIPTION Pin (SOIC/DIP)
1 2 3
Pin TSSOP
3 4 5
Pin (MSOP)
Name
NC NC No internal connections No internal connections
Function
2
RESET/ RESET
Reset Output. RESET/RESET is an active LOW/HIGH, 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/ RESET goes active if the watchdog timer is enabled and SDA remains either HIGH or LOW longer than the selectable Watchdog time out period. A falling edge of SDA, while SCL also toggles from HIGH to LOW followed by a stop condition resets the watchdog timer. RESET/RESET goes active on power up and remains active for 250ms after the power supply stabilizes. Ground Serial Data. SDA is a bidirectional pin used to transfer data into and out of the device. It has an open drain output and may be wire ORed with other open drain or open collector outputs. This pin requires a pull up resistor and the input buffer is always active (not gated). Watchdog Input. A HIGH to LOW transition on the SDA while SCL also toggles from HIGH to LOW follow by a stop condition resets the watchdog timer. The absence of this procedure within the watchdog time out period results in RESET/RESET going active. Serial Clock. The serial clock controls the serial bus timing for data input and output. Write Protect. WP HIGH prevents changes to the watchdog timer setting. Supply voltage
4 5
6 7
3 4
VSS SDA
6 7 8
8 1 2
5 6 1
SCL WP VCC
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PRINCIPLES OF OPERATION Power On Reset Application of power to the X4003/X4005 activates a power on reset circuit that pulls the RESET/RESET pin active. This signal provides several benefits. - It prevents the system microprocessor from starting to operate with insufficient voltage. - It prevents the processor from operating prior to stabilization of the oscillator. - It allows time for an FPGA to download its configuration prior to initialization of the circuit. When VCC exceeds the device VTRIP threshold value for 200ms (nominal) the circuit releases RESET/ RESET, allowing the system to begin operation. Low Voltage Monitoring During operation, the X4003/X4005 monitors the VCC level and asserts RESET/RESET if supply voltage falls below a preset minimum VTRIP. The RESET/RESET signal prevents the microprocessor from operating in a power fail or brownout condition. The RESET/RESET signal remains active until the voltage drops below 1V. It also remains active until VCC returns and exceeds VTRIP for 200ms. Watchdog Timer The watchdog timer circuit monitors the microprocessor activity by monitoring the SDA and SCL pins. The microprocessor must toggle the SDA pin HIGH to LOW periodically, while SCL also toggles from HIGH to LOW (this is a start bit) followed by a stop condition prior to the expiration of the watchdog time out period to prevent a RESET/RESET signal. The state of two nonvolatile control bits in the control register determine the watchdog timer period. The microprocessor can change these watchdog bits, or they may be "locked" by tying the WP pin HIGH. Figure 1. Watchdog Restart
.6s SCL .6s
SDA Start Condition Stop Condition
Restart
Set VTRIP Level Sequence (VCC = desired VTRIP value)
WP VP = 15-18V
01234567 SCL
01234567
01234567
SDA A0h 01h 00h
VCC THRESHOLD RESET PROCEDURE The X4003/X4005 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 X4003/X4005 threshold may be adjusted. The procedure is described below, and uses the application of a nonvolatile control signal.
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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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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 write data 00hto address 01h. The stop bit following a valid write operation initiates the VTRIP programing sequence. Bring WP LOW to complete the operation. 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. 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 write 00h to address 03h. The stop bit of a valid write operation initiates the VTRIP programming sequence. Bring WP LOW to complete the operation.
Figure 2. Reset VTRIP Level Sequence (VCC > 3V. WP = 15-18V)
WP VP = 15-18V
01234567 SCL
01234567
01234567
SDA A0h 03h 00h
Figure 3. Sample VTRIP Reset Circuit
VP 4.7K Adjust 1 8 Run SCL SDA C
RESET/ RESET
VTRIP Adj.
2 7 3 X4003/05 6 4 5
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Figure 4. VTRIP Programming Sequence
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
Execute Reset VTRIP Sequence
Apply 5V to VCC
Decrement VCC (VCC = VCC-50mV)
RESET pin goes active?
NO
YES Error Emax Error -Emax
Measured VTRIP Desired VTRIP
-Emax < Error < Emax DONE Emax = Maximum Allowable VTRIP Error
Control Register The control register provides the user a mechanism for changing the watchdog timer settings. watchdog timer bits are nonvolatile and do not change when power is removed. The control register is accessed with a special preamble in the slave byte (1011) and is located at address 1FFh. It can only be modified by performing a control register write operation. Only one data byte is allowed for each register write operation. Prior to writing to the
control register, the WEL and RWEL bits must be set using a two step process, with the whole sequence requiring 3 steps. See "Writing to the Control Register" below. The user must issue a stop after sending the control byte to the register to initiate the nonvolatile cycle that stores WD1 and WD0. The X4003/X4005 will not acknowledge any data bytes written after the first byte is entered.
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The state of the control register can be read at any time by performing a serial read operation. Only one byte is read by each register read operation. The X4003/X4005 resets itself after the first byte is read. The master should supply a stop condition to be consistent with the bus protocol, but a stop is not required to end this operation. 7
0
register write enable latch (RWEL) and the WEL bit. This is also a volatile cycle. The zeros in the data byte are required. (Operation preceeded by a start and ended with a stop.) - Write a value to the control register that has all the control bits set to the desired state. This can be represented as 0xy0 0010 in binary, where xy are the WD bits. (Operation preceeded by a start and ended with a stop.) Since this is a nonvolatile write cycle it will take up to 10ms to complete. The RWEL bit is reset by this cycle and the sequence must be repeated to change the nonvolatile bits again. If bit 2 is set to `1' in this third step (0xy0 0110) then the RWEL bit is set, but the WD1 and WD0 bits remain unchanged. Writing a second byte to the control register is not allowed. Doing so aborts the write operation and returns a NACK. - A read operation occurring between any of the previous operations will not interrupt the register write operation. - The RWEL bit cannot be reset without writing to the nonvolatile control bits in the control register, power cycling the device or attempting a write to a write protected block. To illustrate, a sequence of writes to the device consisting of [02H, 06H, 02H] will reset all of the nonvolatile bits in the control register to 0. A sequence of [02H, 06H, 06H] will leave the nonvolatile bits unchanged and the RWEL bit remains set. SERIAL INTERFACE Serial Interface Conventions The device supports a bidirectional bus oriented protocol. The protocol defines any device that sends data onto the bus as a transmitter, and the receiving device as the receiver. The device controlling the transfer is called the master and the device being controlled is called the slave. The master always initiates data transfers, and provides the clock for both transmit and receive operations. Therefore, the devices in this family operate as slaves in all applications. Serial Clock and Data Data states on the SDA line can change only during SCL LOW. SDA state changes during SCL HIGH are reserved for indicating start and stop conditions. See Figure 5.
6
WD1
5
WD0
4
0
3
0
2
RWEL
1
WEL
0
0
RWEL: Register Write Enable Latch (Volatile) The RWEL bit must be set to "1" prior to a write to the control register. WEL: Write Enable Latch (Volatile) The WEL bit controls the access to the control register during a write operation. This bit is a volatile latch that powers up in the LOW (disabled) state. While the WEL bit is LOW, writes the control register will be ignored (no acknowledge will be issued after the data byte). The WEL bit is set by writing a "1" to the WEL bit and zeroes to the other bits of the control register. Once set, WEL remains set until either it is reset to 0 (by writing a "0" to the WEL bit and zeroes to the other bits of the control register) or until the part powers up again. Writes to the WEL bit do not cause a nonvolatile write cycle, so the device is ready for the next operation immediately after the stop condition. WD1, WD0: Watchdog Timer Bits The bits WD1 and WD0 control the period of the watchdog timer. The options are shown below. WD1
0 0 1 1
WD0
0 1 0 1
Watchdog Time Out Period
1.4 seconds 600 milliseconds 200 milliseconds Disabled (factory setting)
Writing to the Control Register Changing any of the nonvolatile bits of the control register requires the following steps: - Write a 02H to the control register to set the write enable latch (WEL). This is a volatile operation, so there is no delay after the write. (Operation preceeded by a start and ended with a stop.) - Write a 06H to the control register to set both the
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Figure 5. Valid Data Changes on the SDA Bus
SCL
SDA Data Stable Data Change Data Stable
Serial Start Condition All commands are preceded by the start condition, which is a HIGH to LOW transition of SDA when SCL is HIGH. The device continuously monitors the SDA and SCL lines for the start condition and will not respond to any command until this condition has been met. See Figure 6.
Serial Stop Condition All communications must be terminated by a stop condition, which is a LOW to HIGH transition of SDA when SCL is HIGH. The stop condition is also used to place the device into the Standby power mode after a read sequence. A stop condition can only be issued after the transmitting device has released the bus. See Figure 6.
Figure 6. Valid Start and Stop Conditions
SCL
SDA Start Stop
Serial Acknowledge Acknowledge is a software convention used to indicate successful data transfer. The transmitting device, either master or slave, will release the bus after transmitting eight bits. During the ninth clock cycle, the receiver will pull the SDA line LOW to acknowledge that it received the eight bits of data. Refer to Figure 7.
The device will respond with an acknowledge after recognition of a start condition and the correct contents of the slave address byte. Acknowledge bits are also provided by the X4003/4005 after correct reception of the control register address byte, after receiving the byte written to the control register and after the second slave address in a read question (See Figure 8 and See Figure 9.)
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X4003/X4005
Figure 7. Acknowledge Response From Receiver
SCL from Master
1
8
9
Data Output from Transmitter
Data Output from Receiver
Start
Acknowledge
SERIAL WRITE OPERATIONS Slave Address Byte Following a start condition, the master must output a slave address byte. This byte consists of several parts: - a device type identifier that is always `1011'. - two bits of `0'. - one bit of the slave command byte is a R/W bit. The R/W bit of the slave address byte defines the operation to be performed. When the R/W bit is a one, then a read operation is selected. A zero selects a write operation. Refer to Figure 8. - After loading the entire slave address byte from the SDA bus, the device compares the input slave byte data to the proper slave byte. Upon a correct compare, the device outputs an acknowledge on the SDA line. Write Control Register To write to the control register, the device requires the slave address byte and a byte address. This gives the master access to register. After receipt of the address Figure 8. Write Control Register Sequence
Signals from the Master SDA Bus Signals from the Slave Slave Address
byte, the device responds with an acknowledge, and awaits the data. After receiving the 8 bits of the data byte, the device again responds with an acknowledge. The master then terminates the transfer by generating a stop condition, at which time the device begins the internal write cycle to the nonvolatile memory. During this internal write cycle, the device inputs are disabled, so the device will not respond to any requests from the master. If WP is HIGH, the control register cannot be changed. A write to the control register will suppress the acknowledge bit and no data in the control register will change. With WP low, a second byte written to the control register terminates the operation and no write occurs. Stops and Write Modes Stop conditions that terminate write operations must be sent by the master after sending 1 full data byte plus the subsequent ACK signal. If a stop is issued in the middle of a data byte, or before 1 full data byte plus its associated ACK is sent, then the device will reset itself without performing the write.
Start
10 11 0 010 A C K
11111111 A C K A C K
Stop
Byte Address
Data
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X4003/X4005
Serial Read Operations The read operation allows the master to access the control register. To conform to the I2C standard, prior to issuing the slave address byte with the R/W bit set to one, the master must first perform a "dummy" write operation. The master issues the start condition and the slave address byte, receives an acknowledge, then issues the byte address. After acknowledging receipt of the byte address, the master immediately issues another start condition and the slave address byte with the R/W bit set to one. This is followed by an acknowledge from the device and then by the eight bit control register. The master terminates the read operation by not Figure 9. Control Register Read Sequence
S t a r t S t a r t S t o p
responding with an acknowledge and then issuing a stop condition. Refer to Figure 9 for the address, acknowledge, and data transfer sequences. Operational Notes The device powers-up in the following state: - The device is in the low power standby state. - The WEL bit is set to `0'. In this state it is not possible to write to the device. - SDA pin is the input mode. RESET/RESET signal is active for tPURST.
Signals from the Master SDA Bus Signals from the Slave
Slave Address
Byte Address
Slave Address
1 0 11 0 010 A C K
11111111 A C K
10 110 011 A C K
Data
Data Protection The following circuitry has been included to prevent inadvertent writes: - The WEL bit must be set to allow a write operation. - The proper clock count and bit sequence is required prior to the stop bit in order to start a nonvolatile write cycle. - A three step sequence is required before writing into the control register to change watchdog timer or block lock settings. - The WP pin, when held HIGH, prevents all writes to the control register. - Communication to the device is inhibited below the VTRIP voltage. - Command to change the control register are terminated if in-progress when RESET/RESET go active.
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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X4003/X4005
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, 10 seconds).........300C COMMENT Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only; the functional operation of the device (at these or any other conditions above those listed in the operational sections of this specification) is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS Temperature
Commercial Industrial
Min.
0C -40C
Max.
70C +85C
Option
-1.8 -2.7 and -2.7A Blank and -4.5A
Supply Voltage Limits
1.8V to 3.6V 2.7V to 5.5V 4.5V to 5.5V
D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) VCC = 1.8 to 3.6V Symbol
ICC
(1)
VCC = 2.7 to 5.5V Min Max
1.0 3.0 1 1 20 10 10 -0.5 VCC x 0.3
Parameter
Active supply current read control register Active supply current write control register Operating current AC (WDT off) Operating current DC (WDT off) Operating current DC (WDT on) Input leakage current Output leakage current Input LOW voltage Input HIGH voltage Schmitt trigger input hysteresis fixed input level VCC related level Output LOW voltage
Min
Max
0.5 1.5 1 1 10 10 10
Unit
mA mA A A A A A V V V
Test Conditions
fSCL = 400kHznonvolatile, SDA = Open
ICC2(1) ICC3(2) ICC4(2) ICC5(2) ILI ILO VIL(3) VIH
(3)
VSDA = VSCL = VCC Others = GND or VSB
VIN = GND to VCC VSDA = GND to VCC Device is in Standby(2)
-0.5
VCC x 0.3
VCC x 0.7 VCC + 0.5 VCC x 0.7 VCC + 0.5 0.2 .05 x VCC 0.4 0.2 .05 x VCC 0.4
VHYS
VOL
V
IOL = 3.0mA (2.7-5.5V) IOL = 1.8mA (1.8-3.6V)
Notes: (1) The device enters the active state after any start, and remains active until: 9 clock cycles later if the device select bits in the slave address byte are incorrect; 200ns after a stop ending a read operation; or tWC after a stop ending a write operation. (2) The device goes into standby: 200ns after any stop, except those that initiate a nonvolatile write cycle; t WC after a stop that initiates a nonvolatile cycle; or 9 clock cycles after any start that is not followed by the correct device select bits in the slave address byte. (3) VIL min. and VIH max. are for reference only and are not tested.
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X4003/X4005
CAPACITANCE (TA = 25C, f = 1.0 MHz, VCC = 5V) Symbol
COUT(4) CIN
Note:
(4)
Parameter
Output capacitance (SDA, RESET/RESET) Input capacitance (SCL, WP)
Max.
8 6
Unit
pF pF
Test Conditions
VOUT = 0V VIN = 0V
(4) This parameter is periodically sampled and not 100% tested.
EQUIVALENT A.C. LOAD CIRCUIT
5V For VOL = 0.4V and IOL = 3 mA RESET RESET 100pF 100pF 5V 1533 SDA 4.6K
A.C. TEST CONDITIONS
Input pulse levels Input rise and fall times Input and output timing levels Output load 0.1VCC to 0.9VCC 10ns 0.5VCC Standard output load
A.C. CHARACTERISTICS (Continued)(Over recommended operating conditions, unless otherwise specified) 100kHz Symbol
fSCL tIN tAA tBUF tLOW tHIGH tSU:STA tHD:STA tSU:DAT tHD:DAT tSU:STO tDH tR tF tSU:WP tHD:WP Cb SCL clock frequency Pulse width suppression time at inputs SCL LOW to SDA data out valid Time the bus free before start of new transmission Clock LOW time Clock HIGH time Start condition setup time Start condition hold time Data in setup time Data in hold time Stop condition setup time Data output hold time SDA and SCL rise time SDA and SCL fall time WP setup time WP hold time Capacitive load for each bus line 0.4 0 400
400kHz Min.
0 50 0.1 1.3 1.3 0.6 0.6 0.6 100 0 0.6 50 0.9
Parameter
Min.
0 n/a 0.1 4.7 4.7 4.0 4.7 4.0 250 5.0 0.6 50
Max.
100 n/a 0.9
Max.
400
Unit
kHz ns s s s s s s ns s s ns
1000 300
20
+.1Cb(6)
(6)
300 300
ns ns s s
20 +.1Cb 0.6 0
400
pF
Notes: (5) Typical values are for TA = 25C and VCC = 5.0V (6) Cb = total capacitance of one bus line in pF.
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X4003/X4005
TIMING DIAGRAMS Bus Timing
tF SCL tSU:STA SDA IN tHD:STA tSU:DAT tHD:DAT tSU:STO tHIGH tLOW tR
tA SDA OUT
tDH
tBUF
WP Pin Timing
Start SCL Clk 1 Slave Address Byte SDA IN tSU:WP WP tHD:WP Clk 9
Write Cycle Timing
SCL
SDA
8th Bit of Last Byte
ACK tWC Stop Condition Start Condition
Nonvolatile Write Cycle Timing Symbol
tWC
Note:
(7)
Parameter
Write cycle time
Min.
Typ.(1)
5
Max.
10
Unit
ms
(7) tWC is the time from a valid stop condition at the end of a write sequence to the end of the self-timed internal nonvolatile write cycle. It is the minimum cycle time to be allowed for any nonvolatile write by the user, unless Acknowledge Polling is used.
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Power-Up and Power-Down Timing
VTRIP VCC 0 Volts tR RESET tPURST tRPD VRVALID tPURST tF
RESET
VRVALID
RESET/RESET Output Timing Symbol
VTRIP
Parameter
Reset trip point voltage, X4003-4.5A, X4005-4.5A Reset trip point voltage, X4003, X4005 Reset trip point voltage, X4003-2.7A, X4005-2.7A Reset trip point voltage, X4003-2.7, X4005-2.7 Reset trip point voltage, X4003-1.8, X4005-1.8 Power-up reset time out VCC detect to reset/output VCC fall time VCC rise time Reset valid VCC
Min.
4.5 4.25 2.85 2.55 1.7 100 10 0.1 1
Typ.
4.62 4.38 2.92 2.62 1.75 200
Max.
4.75 4.5 3.0 2.7 1.8 400 500
Unit
V V V
tPURST tRPD tF tR
(8) (8) (8)
ms ns ms ns V
VRVALID
Note:
(8) This parameter is periodically sampled and not 100% tested.
SDA vs. RESET/RESET Timing
SCL
SDA tCST RESET tWDO RESET tRST tWDO tRST
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X4003/X4005
RESET/RESET Output Timing Symbol
tWDO
Parameter
Watchdog time out period, WD1 = 1, WD0 = 1 (factory setting) 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 1.4 200
Max.
Unit
100 450 1 400 100
300 800 2 400
ms ms sec ns ms
tCST tRST
VTRIP Programming Timing Diagram
VTRIP tTHD tTSU VP WP tVPO tVPH tVPS SCL tRP SDA 00h 01h or 03h A0h VCC (VTRIP)
VTRIP Programming Parameters Parameter
tVPS tVPH tTSU tTHD tWC tVPO tRP VP VTRAN Vta1 Vta2 Vtr Vtv
Description
VTRIP program enable voltage setup time VTRIP program enable voltage hold 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 Initial VTRIP program voltage accuracy (VCC applied-VTRIP) (Programmed at 25C.) Subsequent VTRIP program voltage accuracy [(VCC applied-Vta1)-VTRIP. Programmed at 25C.) VTRIP program voltage repeatability (Successive program operations. Programmed at 25C.) VTRIP program variation after programming (0-75C). (programmed at 25C)
Min. Max. Unit
1 1 1 10 10 0 10 15 1.7 -0.1 -25 -25 -25 18 5.0 +0.4 +25 +25 +25 s s s ms ms s ms V V V mV mV mV
VTRIP programming parameters are periodically sampled and are not 100% tested.
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X4003/X4005
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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X4003/X4005
PACKAGING INFORMATION 8-Lead Miniature Small Outline Gull Wing Package Type M
0.118 0.002 (3.00 0.05) 0.012 + 0.006 / -0.002 (0.30 + 0.15 / -0.05) 0.0256 (0.65) Typ.
R 0.014 (0.36) 0.118 0.002 (3.00 0.05)
0.030 (0.76) 0.0216 (0.55)
0.036 (0.91) 0.032 (0.81)
7 Typ.
0.040 0.002 (1.02 0.05)
0.008 (0.20) 0.004 (0.10)
0.0256" Typical
0.007 (0.18) 0.005 (0.13)
0.150 (3.81) Ref. 0.193 (4.90) Ref.
0.025" Typical 0.220"
FOOTPRINT
0.020" Typical 8 Places
NOTE: 1. ALL DIMENSIONS IN INCHES AND (MILLIMETERS)
REV 1.1.3 4/30/02
www.xicor.com
Characteristics subject to change without notice.
16 of 18
X4003/X4005
Ordering Information VCC Range
4.5-5.5V
VTRIP Range
4.5-4.75
Package
8L SOIC 8L MSOP
Operating Temperature Range
0-70C -40-85C -40-85C 0-70C -40-85C -40-85C 0-70C -40-85C -40-85C 0-70C -40-85C -40-85C 0-70C 0-70C
Part Number RESET (Active LOW)
X4003S8-4.5A X4003S8I-4.5A X4003M8I-4.5A X4003S8 X4003S8I X4003M8I X4003S8-2.7A X4003S8I-2.7A X4003M8I-2.7A X4003S8-2.7 X4003S8I-2.7 X4003M8I-2.7 X4003S8-1.8 X4003M8-1.8
Part Number RESET (Active HIGH)
X4005S8-4.5A X4005S8I-4.5A X4005M8I-4.5A X4005S8 X4005S8I X4005M8I X4005S8-2.7A X4005S8I-2.7A X4005M8I-2.7A X4005S8-2.7 X4005S8I-2.7 X4005M8I-2.7 X4005S8-1.8 X4005M8-1.8
4.5-5.5V
4.25-4.5
8L SOIC 8L MSOP
2.7-5.5V
2.85-3.0
8L SOIC 8L MSOP
2.7-5.5V
2.55-2.7
8L SOIC 8L MSOP
1.8-3.6V
1.7-1.8
8L SOIC 8L MSOP
Part Mark Information 8-Lead TSSOP EYWW XXXXX ACI/ACR = -4.5A (0 to70C) ACK/ACT = No Suffix (0 to 70C) ACM/ACV = -2.7A (0 to 70C) ACO/ACX = -2.7 (0 to 70C) ACP/ACY = -1.8 (0 to 70C) 4003/4005 8-Lead SOIC X4003/05 X XX Blank = 8-Lead SOIC
AL = -4.5A (0 to +70C) AM = -4.5A (-171740 to +85C) Blank = No Suffix (0 to +70C) I = No Suffix (-40 to +85C) AN = -2.7A (0 to +70C) AP = -2.7A (-40 to +85C) F = -2.7 (0 to +70C) G = -2.7 (-40 to +85C) AG = -1.8 (0 to +70C)
REV 1.1.3 4/30/02
www.xicor.com
Characteristics subject to change without notice.
17 of 18
X4003/X4005
LIMITED WARRANTY
(c)Xicor, Inc. 2000 Patents Pending
Devices sold by Xicor, Inc. are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. Xicor, Inc. makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. Xicor, Inc. makes no warranty of merchantability or fitness for any purpose. Xicor, Inc. reserves the right to discontinue production and change specifications and prices at any time and without notice. Xicor, Inc. assumes no responsibility for the use of any circuitry other than circuitry embodied in a Xicor, Inc. product. No other circuits, patents, or licenses are implied. TRADEMARK DISCLAIMER: Xicor and the Xicor logo are registered trademarks of Xicor, Inc. AutoStore, Direct Write, Block Lock, SerialFlash, MPS, and XDCP are also trademarks of Xicor, Inc. All others belong to their respective owners. U.S. PATENTS Xicor products are covered by one or more of the following U.S. Patents: 4,326,134; 4,393,481; 4,404,475; 4,450,402; 4,486,769; 4,488,060; 4,520,461; 4,533,846; 4,599,706; 4,617,652; 4,668,932; 4,752,912; 4,829,482; 4,874,967; 4,883,976; 4,980,859; 5,012,132; 5,003,197; 5,023,694; 5,084,667; 5,153,880; 5,153,691; 5,161,137; 5,219,774; 5,270,927; 5,324,676; 5,434,396; 5,544,103; 5,587,573; 5,835,409; 5,977,585. Foreign patents and additional patents pending. LIFE RELATED POLICY In situations where semiconductor component failure may endanger life, system designers using this product should design the system with appropriate error detection and correction, redundancy and back-up features to prevent such an occurrence. Xicor's products are not authorized for use in critical components in life support devices or systems. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
REV 1.1.3 4/30/02
www.xicor.com
Characteristics subject to change without notice.
18 of 18

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