74HC595数据手册集成电路（IC）的移位寄存器规格书PDF

描述 Description

The 74HC595 is a high speed shift register utilizes advanced silicon-gate CMOS technology. This device possesses the high noise immunity and low power consumption of standard CMOS integrated circuits. This device contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The storage register has 8 3-STATE outputs. Separate clocks are provided for both the shift register and the storage register. The shift register has a direct-overriding clear, serial input, and serial output (standard) pins for cascading. Both the shift register and storage register use positive-edge triggered clocks. If both clocks are connected together, the shift register state will always be one clock pulse ahead of the storage register.

特性 Features

• Low quiescent current: 80µA maximum

• Low input current: 1µA maximum

• 8-bit serial-in, parallel-out shift register with storage

• Wide operating voltage range: 2.0V to 6.0V

• Shift register has direct clear

• Guaranteed shift frequency: DC to 30 MHz

• Package information: