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54AC16652WD View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
54AC16652WD 16-BIT BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS TI
Texas Instruments TI
54AC16652WD Datasheet PDF : 13 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
D Members of the Texas Instruments
Widebus Family
D Independent Registers and Enables for A
and B Buses
D Multiplexed Real-Time and Stored Data
D Flow-Through Architecture Optimizes
PCB Layout
D Distributed VCC and GND Pin
Configurations Minimize High-Speed
Switching Noise
D EPIC (Enhanced-Performance Implanted
CMOS) 1-µm Process
D 500-mA Typical Latch-Up Immunity at
125°C
D Package Options Include Plastic 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 ’AC16652 are 16-bit bus transceivers that
consist of D-type flip-flops and control circuitry
arranged for multiplexed transmission of data
directly from the data bus or from the internal
storage registers. They can be used as two 8-bit
transceivers or one 16-bit transceiver.
Complementary output-enable (OEAB and
OEBA) inputs are provided to control the
transceiver functions. Select-control (SAB and
SBA) inputs are provided to select whether
real-time or stored data is transferred. A low input
level selects real-time data, and a high input level
selects stored data. The circuitry used for select
control eliminates the typical decoding glitch that
occurs in a multiplexer during the transition
between stored and real-time data. Figure 1
illustrates the four fundamental bus-management
functions that can be performed with the
’AC16652.
54AC16652, 74AC16652
16-BIT BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCAS242A – MARCH 1990 – REVISED APRIL 1996
54AC16652 . . . WD PACKAGE
74AC16652 . . . DL PACKAGE
(TOP VIEW)
1OEAB 1
1CLKAB 2
1SAB 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
2SAB 26
2CLKAB 27
2OEAB 28
56 1OEBA
55 1CLKBA
54 1SBA
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 2SBA
30 2CLKBA
29 2OEBA
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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