74ACT11245 Datasheet, PDF (1/6 Pages) Texas Instruments – OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS

D 3-State Outputs Drive Bus Lines Directly
D Inputs Are TTL-Voltage Compatible
D Flow-Through Architecture Optimizes
PCB Layout
D Center-Pin V_CC and GND 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
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, and Standard Plastic 300-mil
DIPs (NT)
74ACT11245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS031C – JULY 1987 – REVISED APRIL 1996
DB, DW, NT, OR PW PACKAGE
(TOP VIEW)
A1 1
A2 2
A3 3
A4 4
GND 5
GND 6
GND 7
GND 8
A5 ⁹
A6 ¹⁰
A7 ¹¹
A8 ¹²
24 DIR
23 B1
22 B2
21 B3
20 B4
19 V_CC
18 V_CC
17 B5
16 _B6
15 _B7
14 _B8
13 _OE
description
The octal bus transceiver is designed for asynchronous two-way communication between data buses. The
control-function implementation minimizes external timing requirements.
The device allows 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.
The 74ACT11245 is characterized for operation from –40°C to 85°C.
OUTPUT
ENABLE
OE
L
L
H
FUNCTION TABLE
DIRECTION
CONTROL
DIR
OUTPUT
L
B data to A bus
H
A data to B bus
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 is a trademark 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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