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8-Bit Serial or Parallel-Input/Serial-Output Shift Register with 3-State Output

High?Performance Silicon?Gate CMOS

The MC74HC589A device consists of an 8?bit storage latch which feeds parallel data to an 8?bit shift register. Data can also be loaded serially (see the Function Table). The shift register output, QH, is a 3?state output, allowing this device to be used in bus?oriented systems.

The HC589A directly interfaces with the SPI serial data port on CMOS MPUs and MCUs.

Features

? Output Drive Capability: 15 LSTTL Loads

? Outputs Directly Interface to CMOS, NMOS, and TTL

? Operating Voltage Range: 2 to 6 V

? Low Input Current: 1 μA

? High Noise Immunity Characteristic of CMOS Devices

? In Compliance with the Requirements Defined by JEDEC Standard No. 7A

? Chip Complexity: 526 FETs or 131.5 Equivalent Gates

? Pb?Free Packages are Available*