SN54ABTH162460, SN74ABTH162460
4-TO-1 MULTIPLEXED/DEMULTIPLEXED REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS241E – FEBRUARY 1993 – REVISED MAY 1997
SN54ABTH162460 . . . WD PACKAGE
SN74ABTH162460 . . . DL PACKAGE
(TOP VIEW)
Members of the Texas Instruments
Widebus Family
B-Port Outputs Have Equivalent 25-Ω
Series Resistors, So No External Resistors
Are Required
LEAB1
LEAB2
LEBA
GND
LEB1
LEB2
OEB1
OEB2
SEL0
GND
1B1
1
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
2
State-of-the-Art EPIC-ΙΙB BiCMOS Design
Significantly Reduces Power Dissipation
3
4
5
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
1B2
6
V
V
7
CC
CC
Typical V
(Output Ground Bounce) < 1 V
OLP
CLKBA
1B3
1B4
2B1
GND
2B2
2B3
2B4
3B1
3B2
3B3
GND
3B4
4B1
4B2
8
at V
= 5 V, T = 25°C
CC
A
OEB
CLKAB
GND
1A
2A
CE_SEL0
CE_SEL1
3A
4A
GND
CLKENAB
CLKENB
CLKENBA
9
High-Impedance State During Power Up
and Power Down
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Distributed V
Minimizes High-Speed Switching Noise
and GND Pin Configuration
CC
Flow-Through Architecture Optimizes PCB
Layout
Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
Package Options Include Plastic 300-mil
Shrink Small-Outline (DL) Package and
380-mil Fine-Pitch Ceramic Flat (WD)
Package Using 25-mil Center-to-Center
Spacings
V
V
CC
CC
LEB3
LEB4
GND
OEA
LEAB3
LEAB4
4B3
4B4
GND
SEL1
OEB3
OEB4
description
The ’ABTH162460 are 4-bit to 1-bit multiplexed
registered transceivers used in applications
where four separate data paths must be
multiplexed onto or demultiplexed from a single
data path. Typical applications include
multiplexing and/or demultiplexing of address and
data
information
in
microprocessor
or
bus-interface applications. This device also is
useful in memory-interleaving applications.
Five 4-bit I/O ports (1A–4A, 1B1–4, 2B1–4, 3B1–4, and 4B1–4) are available for address and/or data transfer.
The output-enable (OEB, OEB1–OEB4, and OEA) inputs control the bus-transceiver functions. These control
signals also allow 4-bit or 16-bit control, depending on the OEB level.
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-ΙΙB are trademarks of Texas Instruments Incorporated.
Copyright 1997, 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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265