74ACT16245DGGR Datasheet, PDF (1/13 Pages) Texas Instruments – SN54ACT16245, 74ACT16245 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SN54ACT16245, 74ACT16245
16-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCAS097B – DECEMBER 1989 – REVISED APRIL 1996
D Members of the Texas Instruments
Widebus™ Family
D Inputs Are TTL-Voltage Compatible
D 3-State Outputs Drive Bus Lines Directly
D Flow-Through Architecture Optimizes PCB
Layout
D Distributed V_CC and GND Configuration to
Minimize High-Speed Switching Noise
D EPIC ™ (Enhanced-Performance Implanted
CMOS) 1-mm 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, Thin
Shrink Small-Outline (DGG) Packages, and
380-mil Fine-Pitch Ceramic Flat (WD)
Packages Using 25-mil Center-to-Center
Pin Spacings
description
The SN54ACT16245 and 74ACT16245 are 16-bit
bus transceivers organized as dual-octal
noninverting 3-state transceivers and designed
for asynchronous two-way communication
between data buses. The control-function
implementation minimizes external timing
requirements.
SN54ACT16245 . . . WD PACKAGE
74ACT16245 . . . DGG OR DL PACKAGE
(TOP VIEW)
1DIR ₁
1B1 2
1B2 3
GND 4
1B3 5
1B4 6
V_CC 7
1B5 8
1B6 9
GND 10
1B7 ¹¹
1B8 ¹²
2B1 ¹³
2B2 ¹⁴
GND ¹⁵
2B3 ¹⁶
2B4 ¹⁷
V_CC ¹⁸
2B5 ¹⁹
2B6 ²⁰
GND ²¹
2B7 ²²
2B8 ²³
2DIR ²⁴
48 ^1G
47 1A1
46 1A2
45 GND
44 1A3
43 1A4
42 V_CC
41 1A5
40 1A6
39 GND
38 _1A7
37 _1A8
36 _2A1
35 _2A2
34 _GND
33 _2A3
32 _2A4
31 _VCC
30 _2A5
29 _2A6
28 _GND
27 _2A7
26 _2A8
25 _2G
The devices 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 enable (G) input can be used to disable the devices so
that the buses are effectively isolated.
The SN54ACT16245 is characterized for operation over the full military temperature range of –55°C to 125°C.
The 74ACT16245 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
CONTROL
INPUTS
G DIR
OPERATION
L
L
B data to A bus
L
H A data to B bus
H
X
Isolation
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.
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 © 1996, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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