SN74HCT595集成电路（IC）的移位寄存器规格书PDF中文资料

SN74HCT595属于集成电路（IC）的移位寄存器。由德州仪器制造生产的SN74HCT595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

• AEC-Q100 qualified for automotive applications:

– Device temperature grade 1:

• –40°C to +125°C, TA

– Device HBM ESD Classification Level 2

– Device CDM ESD Classifcation Level C6

• LSTTL input logic compatible

– VIL(max) = 0.8 V, VIH(min) = 2 V

• CMOS input logic compatible

– II ≤ 1 μA at VOL, VOH

• 4.5 V to 5.5 V operation

• Supports fanout up to 10 LSTTL loads

• Shift register has direct clear

2 Applications

• Output expansion

• LED matrix control

• 7-segment display control

• 8-bit data storage

3 Description

The SN74HCT595-Q1 device contains an 8-bit, serialin,

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 register. The shift register

has a direct overriding clear (SRCLR) input, serial

(SER) input, and a serial output (QH') for cascading.

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

storage register outputs are in a high-impedance

state. Internal register data and serial output (QH') are

not impacted by the operation of the OE input.