SN74AHC595DR集成电路（IC）的移位寄存器规格书PDF中文资料

SN74AHC595DR属于集成电路（IC）的移位寄存器。由德州仪器制造生产的SN74AHC595DR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• Operating Range: 2-V to 5.5-V VCC • 8-Bit Serial-In, Parallel-Out Shift

• Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

• ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

2 Applications

• Network Switches

• Power Infrastructures

• LED Displays

• Servers

3 Description

The SN74AHC595 device contains 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 and storage registers. The shift register has

a direct overriding clear (SRCLR) input, a serial

(SER) input, and a serial output for cascading. When the output-enable (OE) input is high, all outputs

except QH′ are in the high-impedance state.