SN74ALS165集成电路（IC）的移位寄存器规格书PDF中文资料

SN74ALS165属于集成电路（IC）的移位寄存器。由美国德州仪器公司制造生产的SN74ALS165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。

Complementary Outputs

Direct Overriding Load (Data) Inputs

Gated Clock Inputs

Parallel-to-Serial Data Conversion

Package Options Include Plastic

Small-Outline (D) Packages, Ceramic Chip

Carriers (FK), and Standard Plastic (N) and

Ceramic (J) 300-mil DIPs

description

The ′ALS165 are parallel-load 8-bit serial shift

registers that, when clocked, shift the data toward

serial (QH and QH) outputs. Parallel-in access to

each stage is provided by eight individual direct

data (A−H) inputs that are enabled by a low level

at the shift/load (SH/LD) input. The ′ALS165 have

a clock-inhibit function and complemented serial

outputs.

Clocking is accomplished by a low-to-high

transition of the clock (CLK) input while SH/LD is

held high and the clock inhibit (CLK INH) input is

held low. The functions of CLK and CLK INH are

interchangeable. Since a low CLK and a

low-to-high transition of CLK INH also

accomplishes clocking, CLK INH should be

changed to the high level only while CLK is high.

Parallel loading is inhibited when SH/LD is held

high. The parallel inputs to the register are

enabled while SH/LD is low independently of the

levels of the CLK, CLK INH, or serial (SER) inputs.

The SN54ALS165 is characterized for operation over the full military temperature range of −55°C to 125°C. The

SN74ALS165 is characterized for operation from 0°C to 70°C.