SN54ABTE16246 Datasheet, PDF (1/10 Pages) Texas Instruments – 11-BIT INCIDENT-WAVE SWITCHING BUS TRANSCEIVERS WITH 3-STATE AND OPEN-COLLECTOR OUTPUTS

SN54ABTE16246, SN74ABTE16246
11-BIT INCIDENT-WAVE SWITCHING BUS TRANSCEIVERS
WITH 3-STATE AND OPEN-COLLECTOR OUTPUTS
SCBS227F – JULY 1993 – REVISED JUNE 1999
D Members of the Texas Instruments
Widebus ™ Family
D State-of-the-Art EPIC-ΙΙB™ BiCMOS Design
Significantly Reduces Power Dissipation
D Support the VME64 ETL Specification
D Reduced TTL-Compatible Input Threshold
Range
D High-Drive Outputs (I_OH = –60 mA
I_OL = 90 mA) Support Equivalent 25-Ω
Incident-Wave Switching
D V_CCBIAS Pin Minimizes Signal Distortion
During Live Insertion
D Internal Pullup Resistor on OE Keeps
Outputs in High-Impedance State During
Power Up or Power Down
D Distributed V_CC and GND Pin Configuration
Minimizes High-Speed Switching Noise
D Equivalent 25-Ω Series Damping Resistor
on B Port
D Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
D Package Options Include Plastic Shrink
Small-Outline (DL) and Thin-Shrink
Small-Outline (DGG) Packages and 380-mil
Fine-Pitch Ceramic Flat (WD) Package
Using 25-mil Center-to-Center Spacings
SN54ABTE16246 . . . WD PACKAGE
SN74ABTE16246 . . . DGG OR DL PACKAGE
(TOP VIEW)
11OE 1
11DIR 2
11B 3
GND 4
10B 5
9B 6
V_CC 7
8BI 8
8BO 9
GND 10
7BO 11
6BI 12
6BO 13
5BO 14
GND 15
4BO 16
4BI 17
V_CC 18
3BO 19
2BI 20
GND 21
2BO 22
1BO 23
1BI 24
48 V_CCBIAS
47 11A
46 10DIR
45 GND
44 10A
43 9A
42 V_CC
41 9DIR
40 8A
39 GND
38 7A
37 7BI
36 6A
35 5A
34 GND
33 5BI
32 4A
31 V_CC
30 3A
29 3BI
28 GND
27 2A
26 1A
25 OE
description
The ’ABTE16246 devices are 11-bit noninverting transceivers designed for asynchronous two-way
communication between buses. These devices have open-collector and 3-state outputs. 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. When OE is low, the device is active.
The B port has an equivalent 25-Ω series output resistor to reduce ringing. Active bus-hold inputs on the B port
hold unused or floating inputs at a valid logic level.
The A port provides for the precharging of the outputs via V_CCBIAS, which establishes a voltage between 1.3 V
and 1.7 V when V_CC is not connected.
The SN54ABTE16246 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74ABTE16246 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 EPICΙΙ-B are trademarks of Texas Instruments Incorporated.
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
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Copyright © 1999, Texas Instruments Incorporated
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