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SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623 OCTAL BUS TRANSCEIVERS
• Local Bus-Latch Capability • Choice of True or Inverting Logic • Package Options Include Plastic
Small-Outline (DW) Packages and Standard
Plastic (N) 300-mil DIPs
DEVICE SN74ALS620A SN74ALS621A SN74ALS623A, SN74AS623
OUTPUT 3 state
Open collector 3 state
LOGIC Inverting
True True
description
SDAS226A – DECEMBER 1982 – REVISED JANUARY 1995
DW OR N PACKAGE (TOP VIEW)
OEAB 1 A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9
GND 10
20 VCC 19 OEBA 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 B8
These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation allows for maximum flexibility in timing.