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*

MC74HC589屬于集成電路（IC） > 移位寄存器。安森美半導(dǎo)體公司制造生產(chǎn)的MC74HC589移位寄存器移位寄存器是低級邏輯器件，通常用于在串行和并行方式之間轉(zhuǎn)換數(shù)字邏輯信號形式的數(shù)據(jù)，或在數(shù)字字內(nèi)移動數(shù)據(jù)位的位置。移位寄存器通常使用集成到一個設(shè)備中的一組觸發(fā)器來實現(xiàn)，常用于集成度更高的邏輯器件，但仍可用于 I/O 擴展等應(yīng)用，在這些應(yīng)用中離散形式的函數(shù)可能會非常有用。