TECHNICAL DATA

IN74ACT323

8-Bit Bidirectional Universal

Shift Register with Parallel I/O

High-Speed Silicon-Gate CMOS

ORDERING INFORMATION

IN74ACT323N Plastic

IN74ACT323DW SOIC

The IN74ACT323 is identical in pinout to the LS/ALS323,

HC/HCT323. The IN74ACT323 may be used as a level converter for

interfacing TTL or NMOS outputs to High Speed CMOS inputs.

The IN74ACT323 features a multiplexed parallel input/output data

port to achieve full 8-bit handling in a 20 pin package. Due to the large

output drive capability and the 3-state feature, this device is ideally suited

for interface with bus lines in a bus-oriented system.

Two Mode-Select inputs and two Output Enable inputs are used to

choose the mode of operation as listed in the Function Table.

Synchronous parallel loading is accomplished by taking both Mode-

impedance state, which permits data applied to the data port to be clocked

into the register. Reading out of the register can be accomplished when

the outputs are enabled. The active-low synchronous Reset overrides all

other inputs.

PIN ASSIGNMENT

• 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

LOGIC DIAGRAM

PIN 10 = GND

Rev. 00