SN74LV595A集成电路（IC）的移位寄存器规格书PDF中文资料

SN74LV595A属于集成电路（IC）的移位寄存器。由德州仪器制造生产的SN74LV595A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

• 2-V to 5.5-V VCC Operation

• Max tpd of 7.1 ns at 5 V

• Typical VOLP (Output Ground Bounce)

< 0.8 V at VCC = 3.3 V, TA = 25°C

• Typical VOHV (Output VOH Undershoot)

> 2.3 V at VCC = 3.3 V, TA = 25°C

• Support Mixed-Mode Voltage Operation on All

Ports

• 8-Bit Serial-In, Parallel-Out Shift

• Ioff Supports Live Insertion, Partial Power-Down

Mode, and Back-Drive Protection

• Shift Register Has Direct Clear

• Latch-Up Performance Exceeds 250 mA Per JESD

17

2 Applications

• Output expansion

• LED matrix control

• 7-segment display control

3 Description

The SN74LV595A device contains an 8-bit serial-in,

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

storage register. Both the shift register clock (SRCLK)

and storage register clock (RCLK) are positive-edge

triggered.