IN74ACT652

1

AND

High-Speed Silicon-Gate CMOS

The IN74ACT652 is identical in pinout to the LS/ALS652,

HC/HCT652. The IN74ACT652 may be used as a level converter

for interfacing TTL or NMOS outputs to High Speed CMOS inputs.

These devices consists of bus transceiver circuits, D-type flip-

flop, and control circuitry arranged for multiplex transmission of

data directly from the data bus or from the internal storage

registers. Direction and Output Enable are provided to select the

read-time or stored data function. Data on the A or B Data bus, or

both, can be stored in the internal D flip-flops by low-to-high

transitions at the appropriate clock pins (A-to-B Clock or B-to-A

Clock) regardless of the select or enable or enable control pins.

When A-to-B Source and B-to-A Source are in the real-time

transfer mode, it is also possible to store data without using the

internal D-type flip-flops by simultaneously enabling Direction and

Output Enable. In this configuration each output reinforces its

input. Thus, when all other data sources to the two sets of bus

lines are at high impedance, each set of bus lines will remain

at its last state.

The IN74ACT652 has noninverted outputs.

• TTL/NMOS Compatible Input Levels

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 4.5 to 5.5 V

• Low Input Current: 1.0 µA; 0.1 µA @ 25°C

• Outputs Source/Sink 24 mA

ORDERING INFORMATION

IN74ACT652N Plastic

IN74ACT652DW SOIC

packages

PIN ASSIGNMENT

LOGIC DIAGRAM

PIN 12 = GND