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54ACT16543WD View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
54ACT16543WD 16-BIT REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS TI
Texas Instruments TI
54ACT16543WD Datasheet PDF : 12 Pages
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54ACT16543, 74ACT16543
16-BIT REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCAS126B – MARCH 1990 – REVISED APRIL 1996
D Members of the Texas Instruments
Widebus Family
D Inputs Are TTL-Voltage Compatible
D 3-State True Outputs
D Flow-Through Architecture Optimizes
PCB Layout
D Distributed VCC and GND Pin
Configurations Minimize High-Speed
Switching Noise
D EPICt (Enhanced-Performance Implanted
CMOS) 1-mm Process
D 500-mA Typical Latch-Up Immunity at
125°C
D Package Options Include Plastic Thin
Shrink Small-Outline (DGG) and 300-mil
Shrink Small-Outline (DL) Packages Using
25-mil Center-to-Center Pin Spacings, and
380-mil Fine-Pitch Ceramic Flat (WD)
Packages Using 25-mil Center-to-Center
Pin Spacings
description
The ’ACT16543 are 16-bit registered transceivers
that contain two sets of D-type latches for
temporary storage of data flowing in either
direction. The ’ACT16543 can be used as two
8-bit transceivers or one 16-bit transceiver.
Separate latch enable (LEAB or LEBA) and
output-enable (OEAB or OEBA) inputs are
provided for each register to permit independent
control in either direction of data flow.
54ACT16543 . . . WD PACKAGE
74ACT16543 . . . DGG OR DL PACKAGE
(TOP VIEW)
1OEAB 1
1LEAB 2
1CEAB 3
GND 4
1A1 5
1A2 6
VCC 7
1A3 8
1A4 9
1A5 10
GND 11
1A6 12
1A7 13
1A8 14
2A1 15
2A2 16
2A3 17
GND 18
2A4 19
2A5 20
2A6 21
VCC 22
2A7 23
2A8 24
GND 25
2CEAB 26
2LEAB 27
2OEAB 28
56 1OEBA
55 1LEBA
54 1CEBA
53 GND
52 1B1
51 1B2
50 VCC
49 1B3
48 1B4
47 1B5
46 GND
45 1B6
44 1B7
43 1B8
42 2B1
41 2B2
40 2B3
39 GND
38 2B4
37 2B5
36 2B6
35 VCC
34 2B7
33 2B8
32 GND
31 2CEBA
30 2LEBA
29 2OEBA
The A-to-B enable (CEAB) and OEAB inputs must
be low to enter data from A or to output data to B.
Having CEAB low and LEAB low makes the
A-to-B latches transparent; a subsequent low-to-
high transition at LEAB puts the A latches in the
storage mode. Data flow from B to A is similar, but
requires using the CEBA, LEBA, and OEBA
inputs.
The 74ACT16543 is packaged in TI’s shrink small-outline package, which provides twice the functionality of
standard small-outline packages in the same printed-circuit-board area.
The 54ACT16543 is characterized for operation over the full military temperature range of –55°C to 125°C. The
74ACT16543 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.
EPIC and Widebus 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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1996, Texas Instruments Incorporated
1
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