The 74HC595 consists of an 8−bit shift register and an 8−bit D−type latch with three−state parallel outputs. The shift register accepts serial data and provides a serial output. The shift register also provides parallel data to the 8−bit latch. The shift register and latch have independent clock inputs. This device also has an asynchronous reset for the shift register.

The HC595 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: 2.0 to 6.0 V

• Low Input Current: 1.0 A

• High Noise Immunity Characteristic of CMOS Devices

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

• ESD Performance: HBM  2000 V; Machine Model  200 V

• Chip Complexity: 328 FETs or 82 Equivalent Gates

• Improvements over HC595

− Improved Propagation Delays

− 50 Lower Quiescent Power

− Improved Input Noise and Latchup Immunity

• These are Pb−Free Devices

74HC595DG属于集成电路（IC） > 移位寄存器。安森美半导体公司制造生产的74HC595DG移位寄存器移位寄存器是低级逻辑器件，通常用于在串行和并行方式之间转换数字逻辑信号形式的数据，或在数字字内移动数据位的位置。移位寄存器通常使用集成到一个设备中的一组触发器来实现，常用于集成度更高的逻辑器件，但仍可用于 I/O 扩展等应用，在这些应用中离散形式的函数可能会非常有用。