OCTAL BUS TRANSCEIVERS
• 3-State Outputs Drive Bus Lines Directly • Package Options Include Plastic
Small-Outline (SOIC) and Shrink Small-Outli...
Description
3-State Outputs Drive Bus Lines Directly Package Options Include Plastic
Small-Outline (SOIC) and Shrink Small-Outline (SSOP) Packages, Ceramic Chip Carriers, and Plastic and Ceramic DIPs
description
These octal bus transceivers are designed for asynchronous communication between data buses. The devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the logic level at the direction-control (DIR) input. The output enable (OE) input can be used to disable the device so the buses are effectively isolated.
The SN74F245 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area.
The SN54F245 is characterized for operation over the full military temperature range of – 55°C to 125°C. The SN74F245 is characterized for operation from 0°C to 70°C.
SN54F245, SN74F245 OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SDFS010A – MARCH 1987 – REVISED OCTOBER 1993
SN54F245 . . . J PACKAGE SN74F245 . . . DB, DW, OR N PACKAGE
(TOP VIEW)
DIR A1 A2 A3 A4 A5 A6 A7 A8
GND
1 2 3 4 5 6 7 8 9 10
20 VCC 19 OE 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 B8
SN54F245 . . . FK PACKAGE (TOP VIEW)
A3
3 2 1 20 19 4 18
B1
A4 5
17 B2
A5 6
16 B3
A6 7
15 B4
A7 8
14 B5
9 10 11 12 13
A8 A2 GND A1
B8 DIR B7 VCC B6 OE
FUNCTION TABLE
INPUTS OE DIR
OPERATION
LL
B data to A bus
LH
A data to B bus
HX
Isolation
PRODUCT...
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