SN74HC595B集成电路（IC）的移位寄存器规格书PDF中文资料

SN74HC595B属于集成电路（IC）的移位寄存器。由德州仪器制造生产的SN74HC595B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。

1 Features

1• 8-Bit Serial-In, Parallel-Out Shift Registers

• Available in Ultra Small Logic QFN package(0.5

mm max height)

• Over-Voltage Tolerant on Inputs Independent of

Vcc

• Wide Operating Voltage Range of 2 V to 6 V

• High-Current 3-State Outputs Can Drive Up to 15

LSTTL Loads

• Low Power Consumption: 80-μA (Maximum) ICC

• tpd = 13 ns (Typical)

• ±6-mA Output Drive at 5 V

• Low Input Current: 1 μA (Maximum)

• Shift Register Has Direct Clear

• -55oC to 125oC Operating Temperature

2 Applications

• Network Switches

• Factory Automation

• Mobile Wearables

• Industrial Building Automation

• Power Infrastructure

• LED Displays

• Servers

3 Description

The SN74HC595B devices contain an 8-bit, serial-in,

parallel-out shift register that feeds an 8-bit D-type

storage register. The storage register has parallel 3-

state outputs. Separate clocks are provided for both

the shift register and storage register. The shift

register has a direct overriding clear (SRCLR) input,

serial (SER) input, and serial outputs for cascading.

When the output-enable (OE) input is high, the all

outputs are in the high-impedance state except QH'.