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Part: 5962-9677401QXA
Category:
Logic
-> Transceivers
-> Standard Transceivers
Description: ti SN54ABT162245, 16-Bit Bus Transceivers With 3-State Outputs
Company: Texas Instruments, Inc.
Datasheet: Download 5962-9677401QXA datasheet File size : 253 kB
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SN54ABT162245, SN74ABT162245 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS239E MARCH 1993 REVISED APRIL 1999
D D D D D D D D D
Members of the Texas Instruments Widebus TM Family A-Port Outputs Have Equivalent 25- Series Resistors, So No External Resistors Are Required State-of-the-Art EPIC-BTM BiCMOS Design Significantly Reduces Power Dissipation Typical VOLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise Flow-Through Architecture Optimizes PCB Layout Latch-Up Performance Exceeds 500 mA Per JESD 17 ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) Package Options Include Plastic Thin Shrink Small-Outline (DGG), Thin Very Small-Outline (DGV), and Shrink Small-Outline (DL) Packages and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Spacings
SN54ABT162245 . . . WD PACKAGE SN74ABT162245 . . . DGG, DGV, OR DL PACKAGE (TOP VIEW)
description
The 'ABT162245 devices are 16-bit noninverting 3-state transceivers designed for synchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.
1DIR 1B1 1B2 GND 1B3 1B4 VC C 1B5 1B6 GND 1B7 1B8 2B1 2B2 GND 2B3 2B4 VC C 2B5 2B6 GND 2B7 2B8 2DIR
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
1OE 1A1 1A2 GND 1A3 1A4 VCC 1A5 1A6 GND 1A7 1A8 2A1 2A2 GND 2A3 2A4 VCC 2A5 2A6 GND 2A7 2A8 2OE
These devices can be used as two 8-bit transceivers or one 16-bit transceiver. They allow data transmission from the A bus to the B bus or from the B bus to the 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. The A-port outputs, which are designed to source or sink up to 12 mA, include equivalent 25- series resistors to reduce overshoot and undershoot. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The SN54ABT162245 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74ABT162245 is characterized for operation from 40°C to 85°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Widebus and EPIC-B are trademarks of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright © 1999, Texas Instruments Incorporated
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
1
SN54ABT162245, SN74ABT162245 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS239E MARCH 1993 REVISED APRIL 1999
FUNCTION TABLE (each 8-bit section) INPUTS OE L L H DIR L H X OPERATION B data to A bus A data to B bus Isolation
logic symbol
48 1OE 1DIR 1 25 2OE 2DIR 24
G3 3 EN1 [BA] 3 EN2 [AB] G6 6 EN4 [BA] 6 EN5 [AB]
1A1
47
1 2
2
1B1
1A2 1A3 1A4 1A5 1A6 1A7 1A8 2A1
46 44 43 41 40 38 37 36 4
3 5 6 8 9 11 12 13
1B2 1B3 1B4 1B5 1B6 1B7 1B8 2B1
2A2 2A3 2A4 2A5 2A6 2A7 2A8
35 33 32 30 29 27 26
5
14 16 17 19 20 22 23
2B2 2B3 2B4 2B5 2B6 2B7 2B8
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54ABT162245, SN74ABT162245 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS239E MARCH 1993 REVISED APRIL 1999
logic diagram (positive logic)
1DIR 1 2DIR 48 24
1OE
25
2OE
1A1
47
2A1
36
2
1B1
13
2B1
To Seven Other Channels
To Seven Other Channels
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V Input voltage range, VI (except I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V Voltage range applied to any output in the high or power-off state, VO . . . . . . . . . . . . . . . . . . . 0.5 V to 5.5 V Current into any output in the low state, IO: SN54ABT162245 (B port) . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA SN74ABT162245 (B port) . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA SN54/74ABT162245 (A port) . . . . . . . . . . . . . . . . . . . . . . . 30 mA Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 mA Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Package thermal impedance, JA (see Note 2): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89°C/W DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93°C/W DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51.
POST OFFICE BOX 655303
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3
SN54ABT162245, SN74ABT162245 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS239E MARCH 1993 REVISED APRIL 1999
recommended operating conditions (see Note 3)
SN54ABT162245 MIN VCC VIH VIL VI IOH IOL t/v Supply voltage High-level input voltage Low-level input voltage Input voltage High-level output current output current Low-level output current output current Input transition rise or fall rate B port A port B port A port Outputs enabled 0 4.5 2 0.8 VCC 24 12 48 12 10 0 MAX 5.5 SN74ABT162245 MIN 4.5 2 0.8 VCC 32 12 64 12 10 MAX 5.5 UNIT V V V V mA mA ns/V
TA Operating free-air temperature 55 125 40 85 °C NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54ABT162245, SN74ABT162245 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS239E MARCH 1993 REVISED APRIL 1999
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER VIK TEST CONDITIONS CONDITIONS VCC = 4.5 V, VCC = 5 V, A port port VOH B port port VCC = 4.5 V VCC = 5 V, VCC = 4.5 V II = 18 mA IOH = 1 mA IOH = 1 mA IOH = 3 mA IOH = 12 mA IOH = 3 mA IOH = 3 mA IOH = 24 mA IOH = 32 mA IOL = 12 mA VCC = 4.5 V IOL = 48 mA IOL = 64 mA 100 Control inputs A or B ports IOZH§ IOZL§ Ioff ICEX IO¶ A port B port A or B ports VCC = 5.5 V, VCC = 5.5 V, VCC = 0, VCC = 5.5 V, VO = 5.5 V VCC = 5 5 V 5.5 V, VCC = 5.5 V, 5.5 V, IO = 0, VI = VCC or GND VO = 2.7 V VO = 0.5 V VI or VO 4.5 V Outputs high VO = 2 5 V 2.5 Outputs high Outputs low Outputs disabled 25 50 50 100 , VCC = 5.5 V, VI = VCC or GND ±1 ±20 10 10 ±100 50 100 180 2 32 2 1 0.05 1.5 3 6 25 50 50 90 180 2 32 2 2 1 1.5 25 50 ±1 ±20 10 10 ±1 ±20 10 10 ±100 50 100 180 2 32 2 2 0.05 1.5 pF pF mA mA µA µA µA µA mA MIN 3.8 3.3 3.1 2.6* 3 2.5 2* 0.8 0.45 0.55* 0.8 0.45 3 2.5 2 2 0.8 0.45 0.55 mV µA V TA = 25°C TYP MAX 1.2 2.5 3 3 SN54ABT162245 MIN MAX 1.2 2.5 3 3.1 2.6 3 2.5 V SN74ABT162245 MIN MAX 1.2 UNIT V
A port VOL Vhys II B port port
ICC
Data inputs inputs ICC# Control inputs Ci Cio
VCC = 5.5 V, Outputs enabled One input at 3.4 V, , Other inputs at Outputs disabled VCC or GND VCC = 5.5 V, One input at 3.4 V, Other inputs at VCC or GND VI = 2.5 V or 0.5 V VO = 2.5 V or 0.5 V
* On products compliant to MIL-PRF-38535, this parameter does not apply. All typical values are at VCC = 5 V. This limit applies only to the SN74ABT162245. § The parameters IOZH and IOZL include the input leakage current. ¶ Not more than one output should be tested at a time, and the duration of the test should not exceed one second. # This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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