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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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