SN74HCS264D集成电路（IC）的移位寄存器规格书PDF中文资料

SN74HCS264D属于集成电路（IC）的移位寄存器。由德州仪器制造生产的SN74HCS264D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

• Wide operating voltage range: 2 V to 6 V

• Schmitt-trigger inputs allow for slow or noisy input

signals

• Low power consumption

– Typical ICC of 100 nA

– Typical input leakage current of ±100 nA

• ±7.8-mA output drive at 6 V

• Extended ambient temperature range: –40°C to

+125°C, TA

2 Applications

• Output expansion

• LED matrix control

• 7-segment display control

• 8-bit data storage

3 Description

The SN74HCS264 device contains an 8-bit shift

register with AND-gated serial inputs and an

asynchronous clear (CLR) input. Data at the serial

inputs can be changed while CLK is high or low,

provided the minimum setup time requirements are

met. All inputs include Schmitt-trigger architecture,

adding noise margin and eliminating any input

transition rate requirement. Clocking occurs on the

low-to-high-level transition of CLK.

Upon a clock trigger, the device will store the result of

the (A ● B) input data line in the first register and

propagate each register’s data to the next register.

The outputs are inverted from the data stored.