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IDT74AUC16245 1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
FEATURES: DESCRIPTION:
IDT74AUC16245 ADVANCE INFORMATION
* ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) * 1.8V Optimized * 0.8V to 2.7V Operating Range * Inputs/outputs tolerant up to 3.6V * Output drivers: 9mA @ VDD = 2.3V * Supports hot insertion * Available in TSSOP, TVSOP, and VFBGA packages
APPLICATIONS:
* High performance, low voltage communications systems * High performance, low voltage computing systems
This 16-bit bus transceiver is built using advanced CMOS technology. The AUC16245 is designed specifically for asynchronous communications between data buses. The control function implementation minimizes external timing requirements. This device can be used as one 16-bit transceiver or two 8-bit transceivers. It allows data transmission from A bus to B bus or from B bus to A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. This device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The AUC16245 is designed with a 9mA output driver. This driver is capable of driving a moderate load while maintaining speed performance. To ensure the high-impedance state during power up or power down, OE should be tied to VDD through a pull-up resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
FUNCTIONAL BLOCK DIAGRAM
1D IR
1
2D IR
48
24 25
1OE
2OE
1A 1
47 2
2A 1 1B 1
36 13
2B 1
TO SEVEN OTHER CHANNELS
TO SEVEN OTHER CHANNELS
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
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(c) 2002 Integrated Device Technology, Inc.
SEPTEMBER 2002
DSC-5954/16
IDT74AUC16245 1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
PINOUT CONFIGURATION
6
1OE 1A2 1A4 1A6 1A8 2A1 2A3 2A5 2A7 2OE
5
NC
1A1
1A3
1A5
1A7
2A2
2A4
2A6
2A8
NC
4
NC
GND
VDD
GND
GND
VDD
GND
NC
3
NC
GND
VDD
GND
GND
VDD
GND
NC
2
NC
1B1
1B3
1B5
1B7
2B2
2B4
2B6
2B8
NC
1
1DIR
1B2
1B4
1B6
1B8
2B1
2B3
2B5
2B7
2DIR
A
B
C
D
E
F
G
H
J
K
NOTE: NC = No Internal Connection
VFBGA
56 BALL VFBGA PACKAGE LAYOUT
A 6 5 4 3 2 1
B
C
D
E
F
G
H
J
K
TOP VIEW
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IDT74AUC16245 1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM Description Terminal Voltage with Respect to GND (all input and VDD terminals) Terminal Voltage with Respect to GND (any I/O or Output terminals in highimpedance or power-off state) VTERM Terminal Voltage with Respect to GND (any I/O or Output terminals in high or low state)
1A3 1A4
Max -0.5 to +3.6 -0.5 to +3.6
Unit V V
1D IR 1B 1 1B2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
1O E 1A1 1A2
VTERM
-0.5 to +3.6
V
GND
1B3 1B 4
GND
TSTG IOUT IIK IOK IDD ISS
Storage Temperature Continuous DC Output Current Continuous Clamp Current VI > VDD VI < 0 Continuous Clamp Current, VO < 0 Continuous Current through each VDD or GND
-65 to +150 20 +50 -50 -50 100
C mA mA mA mA
VDD
1B 5 1B6
VDD
1A 5 1A 6
GND
1B7 1B8 2B 1 2B2
GND
1A 7 1A 8 2A 1 2A 2
NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
CAPACITANCE (TA = +25C, f = 1.0MHz, VDD = 2.5V)
Symbol CIN CI/O Parameter Input Capacitance(1) Conditions VIN = VDD or GND Typ. 3 7 Max. Unit pF pF I/O Port Capacitance(2) VI/O = VDD or GND
GND
2B3 2B 4
GND
2A3 2A4
VDD
2B 5 2B6
VDD
2A 5 2A 6
NOTES: 1. Applies to the Control Inputs. 2. Applies to ports A and B.
PIN DESCRIPTION
Pin Names xOE xDIR xAx xBx Description 3-State Output Enable Inputs (Active Low) Direction Control Inputs A Side Inputs or 3-State Outputs B Side Inputs or 3-State Outputs
GND
2B7 2B 8 2D IR
GND
2A 7 2A 8 2O E
TSSOP/ TVSOP TOP VIEW
FUNCTION TABLE (EACH 8-BIT SECTION)(1)
Inputs xOE L L H
NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedance
xDIR L H X
Outputs Bus B Data to Bus A Bus A Data to Bus B Z
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IDT74AUC16245 1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
RECOMMENDED OPERATING CHARACTERISTICS(1)
Symbol VDD Parameter Supply Voltage VDD = 0.8V VDD = 1.1V to 1.3V VIH Input HIGH Voltage Level VDD = 1.4V to 1.6V VDD = 1.65V to 1.95V VDD = 2.3V to 2.7V VDD = 0.8V VDD = 1.1V to 1.3V VIL Input LOW Voltage Level VDD = 1.4V to 1.6V VDD = 1.65V to 1.95V VDD = 2.3V to 2.7V VI VO Input Voltage Output Voltage Active State 3-State VDD = 0.8V VDD = 1.1V IOH HIGH Level Output Current VDD = 1.4V VDD = 1.65V VDD = 2.3V VDD = 0.8V VDD = 1.1V IOL LOW Level Output Current VDD = 1.4V VDD = 1.65V VDD = 2.3V t/v TA Input Transition Rise or Fall Time Operating Free-Air Temperature Test Conditions Min. 0.8 VDD 0.65 x VDD 0.65 x VDD 0.65 x VDD 1.7 -- -- -- -- -- 0 0 0 -- -- -- -- -- -- -- -- -- -- -- -40 Max. 2.7 -- -- -- -- -- 0 0.35 x VDD 0.35 x VDD 0.35 x VDD 0.7 2.7 VDD 2.7 -0.7 -3 -5 -8 -9 0.7 3 5 8 9 5 +85 ns/V C mA mA V V V V Unit V
NOTE: 1. All unused inputs of the device must be held at VDD or GND to ensure proper operation.
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE(1)
Following Conditions Apply Unless Otherwise Specified: Operating Conditions: TA = -40C to +85C
Symbol IIH IIL IOFF IOZH(2) IOZL(2) IDDL IDDH IDDZ
NOTES: 1. All unused inputs of the device must be held at VDD or GND to ensure proper operation. 2. For the I/O ports, the parameters IOZH and IOZL include the input leakage current.
Parameter Input HIGH or LOW Current Data Inputs Control Inputs Input/Output Power Off Leakage High Impedance Output Current (3-State Output Pins) Quiescent Power Supply Current
Test Conditions VDD = 2.7V, VI = VDD or GND VDD = 0V, VIN or VO 2.7V VDD = 2.7V VDD = 0.8V to 2.7V VIN = GND or VDD VO = VDD VO = GND
Min. -- -- -- -- -- --
Typ. -- -- -- -- -- --
Max. 10 5 10 10 10 20
Unit A A A A
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IDT74AUC16245 1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
OUTPUT DRIVE CHARACTERISTICS
Symbol Parameter Test Conditions(1) IOH = -100A VDD = 0.8V - 2.7V VDD = 0.8V IOH = -0.7mA VDD = 1.1V(2) IOH = -3mA IOH = -5mA VDD = 1.4V(3) (4) VDD = 1.65V IOH = -8mA VDD = 2.3V(5) IOH = -9mA IOH = 100A VDD = 0.8V - 2.7V VDD = 0.8V IOL = 0.7mA VDD = 1.1V(2) IOL = 3mA (3) IOL = 5mA VDD = 1.4V VDD = 1.65V(4) IOL = 8mA IOH = 9mA VDD = 2.3V(5) Min. VDD - 0.1 -- 0.8 1 1.2 1.8 -- -- -- -- -- -- Typ. -- 0.55 -- -- -- -- -- 0.25 -- -- -- -- Max. -- -- -- -- -- -- 0.2 -- 0.3 0.4 0.45 0.6 Unit
VOH
Output HIGH Voltage
V
VOL
Output LOW Voltage
V
NOTES: 1. VIL and VIH must be within 2. Demonstrates operation for 3. Demonstrates operation for 4. Demonstrates operation for 5. Demonstrates operation for
the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS table for the appropriate VDD range. TA = -40C to +85C. nominal VDD = 1.2V. nominal VDD = 1.5V. nominal VDD = 1.8V. nominal VDD = 2.5V.
OPERATING CHARACTERISTICS, TA = 25C
Symbol CPD Parameter Power Dissipation Outputs Enabled Capacitance Outputs Disabled Test Conditions CL = 0pF f = 10MHz VDD = 0.8V 22 1 VDD = 1.2V 23 1 VDD = 1.5V 24 1 VDD = 1.8V 25 1 VDD = 2.5V 29 1 Unit pF
SWITCHING CHARACTERISTICS(1)
VDD = 0.8V VDD = 1.2V0.1V Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay xAx to xBx or xBx to xAx Output Enable Time xOE to xAx or xBx Output Disable Time xOE to xAx or xBx Typ. 5.6 10 12.8 Min. 0.5 0.7 0.8 Max. 3.1 4.6 6.8 VDD = 1.5V0.1V Min. 0.5 0.7 0.8 Max. 2 3.1 5 VDD = 1.8V0.15V Min. 0.5 0.7 0.8 Typ. 1.5 2.1 3.4 Max. 2 3.1 4.8 VDD = 2.5V0.2V Min. 0.4 0.7 0.5 Max. 1.9 2.6 2.9 Unit ns ns ns
NOTE: 1. See TEST CIRCUITS AND WAVEFORMS. TA = -40C to +85C.
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IDT74AUC16245 1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS(1)
Symbol VLOAD VT VLZ VHZ RL CL VDD = 0.8V 2xVDD VDD/2 100 100 2 15 VDD = 1.2V0.1V 2xVDD VDD/2 100 100 2 15
VLOAD Open RL Pulse Generator
(1)
VDD = 1.5V0.1V 2xVDD VDD/2 100 100 2 15
VDD = 1.8V0.15V 2xVDD VDD/2 150 150 1 30
VDD = 2.5V0.2V 2xVDD VDD/2 150 150 0.5 30
Unit V V mV mV k pF
VDD VT 0V VOH VT VOL VDD VT 0V
VDD
SAM E PHASE INPUT TRANSITION tPLH OUTPUT tPLH tPHL tPHL
GND
VIN D.U.T.
VOUT
RT
RL CL
OPPOSITE PHASE INPUT TRANSITION
Propagation Delay Test Circuits for All Outputs
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. NOTE: 1. Pulse Generator for All Pulses: Rate 10MHz; Slew Rate 1V/ns.
ENABLE CONTROL INPUT tPZL OUTPUT SW ITCH NORM ALLY CLOSED LOW tPZH OUTPUT SW ITCH NORM ALLY OPEN HIGH VLOAD/2 VT tPHZ VT 0V tPLZ DISABLE VDD VT 0V VLOAD/2 VOL + VLZ VOL VOH VOH - VHZ 0V
SWITCH POSITION
Test Open Drain Disable Low Enable Low Disable High Enable High All Other Tests Switch VLOAD GND Open
NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
Enable and Disable Times
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IDT74AUC16245 1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT XX AUC X Bus-Hold Temp. Range XX Family XXX Device Type XX Package X Grade I BV PA PF Industrial Temperature Range Very Fine Pitch Ball Grid Array Thin Shrink Small Outline Package Thin Very Small Outline Package
245 16 Blank 74
16-Bit Bus Transceiver with 3-State Outputs Double-Density No Bus-Hold - 40C to +85C
CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054
for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com
for Tech Support: logichelp@idt.com (408) 654-6459
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