74AHCT594中文资料standard-logic数据手册Diodes规格书

描述 Description

The 74AHCT594 is a advanced high speed CMOS device that is designed to be pin compatable with 74LS low power Schottky types.

An eight bit shift register accpets data from the serial input (DS) on each positive transition of the shift register clock (SHCP). When asserted low the shift regisister reset function /SHR sets all shift register values to zero and is indepent of all clocks. Also when asserted low the storage register reset function /STR sets all shift register values to zero and is indepent of all clocks
Data from the input serial shift register is placed in the output register with a rising pulse on the storages resister clock.(STCP). The storage resister includes output Q7S which is used for cascading information between devices. As the information moves into the storage register, it is asserted on the push-pull outputs Q0-Q7.
All registers capture data on rising edge and change output on the falling edge. If both clocks are connected together the input shift register is always one clock cycle ahead of the output register.

应用 Application

•\tGeneral Purpose Logic
•\tSerial to Parallel Data conversion
•\tCapture and hold data for extended periods of time.
•\tAllow simple serial bit streams from a microcontroller to control as many peripheral lines as needed.
•\tWide array of products such as:
o\tComputer peripherals
o\tAppliances
o\t Industrial control
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简介

74AHCT594属于集成电路（IC）的移位寄存器。由制造生产的74AHCT594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。