IN74AC323 데이터 시트보기 (PDF) - IK Semicon Co., Ltd
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IN74AC323 Datasheet PDF : 9 Pages
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TECHNICAL DATA
8-Bit Bidirectional Universal
Shift Register with Parallel I/O
High-Speed Silicon-Gate CMOS
IN74AC323
The IN74AC323 is identical in pinout to the LS/ALS323,
HC/HCT323. The device inputs are compatible with standard CMOS
outputs; with pullup resistors, they are compatible with LS/ALS outputs.
The IN74AC323 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-
Select lines, S1 and S2, high. This places the outputs in the high-
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.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 μA; 0.1 μA @ 25°C
• High Noise Immunity Characteristic of CMOS Devices
• Outputs Source/Sink 24 mA
ORDERING INFORMATION
IN74AC323N Plastic
IN74AC323DW SOIC
TA = -40° to 85° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 20=VCC
PIN 10 = GND
Rev. 00
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