Datasheet Texas Instruments SN74F657DW — 数据表

SN74F657
OCTAL TRANSCEIVER WITH PARITY GENERATOR/CHECKER
AND 3-STATE OUTPUTS
SDFS027A – D3217, JANUARY 1989 – REVISED OCTOBER 1993 Combines ′F245 and ′F280B Functions in
One Package
High-Impedance N-P-N Inputs for Reduced
Loading (70 ВµA in Low and High States)
High Output Drive and Light Bus Loading
3-State B Outputs Sink 64 mA and Source
15 mA
Input Diodes for Termination Effects
Package Options Include Plastic
Small-Outline Packages and Standard
Plastic 300-mil DIPs description DW OR NT PACKAGE
(TOP VIEW) T/R
A1
A2
A3
A4
A5
VCC
A6
A7 …