Octal Buffer/Line Driver
MC74AC573, MC74ACT573
Octal Buffer/Line Driver with 3-State Outputs
The MC74AC573/74ACT573 is a high−speed octal latch ...
Description
MC74AC573, MC74ACT573
Octal Buffer/Line Driver with 3-State Outputs
The MC74AC573/74ACT573 is a high−speed octal latch with buffered common Latch Enable (LE) and buffered common Output Enable (OE) inputs.
The MC74AC573/74ACT573 is functionally identical to the MC74AC373/74ACT373 but has inputs and outputs on opposite sides.
Features
Inputs and Outputs on Opposite Sides of Package Allowing Easy
Interface with Microprocessors
Useful as Input or Output Port for Microprocessors Functionally Identical to MC74AC373/74ACT373 3−State Outputs for Bus Interfacing Outputs Source/Sink 24 mA ′ACT573 Has TTL Compatible Inputs These are Pb−Free Devices
VCC O0 O1 O2 O3 O4 O5 O6 O7 LE
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
OE D0 D1 D2 D3 D4 D5 D6 D7 GND
Figure 1. Pinout 20−Lead Packages Conductors (Top View)
PIN ASSIGNMENT
PIN FUNCTION
D0−D7 LE
Data Inputs Latch Enable Input
OE 3−State Output Enable Input
O0−O7
3−State Latch Outputs
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