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74LVC594ABQ

8位的移位寄存器,输出寄存器 8-bit shift register with output register

General description

The 74LVC594A is an 8-bit serial-in/serial or parallel-out shift register with a storage register. Separate clock and reset inputs are provided on both shift and storage registers.

The input can be driven from either 3.3 V or 5 V devices. This feature allows the use of this device in a mixed 3.3 V and 5 V environment.

This device is fully specified for partial Power-down applications using IOFF. The IOFFcircuitry disables the output, preventing the damaging backflow current through the device when it is powered down.

The shift register has a serial input DS and a serial output Q7S for cascading purposes. Data is shifted on the positive-going transitions of the SHCP input. The data in the shift register is transferred to the storage register on a positive-going transition of the STCP input. If both clocks are connected together, the shift register will always be one clock pulse ahead of the storage register. A LOW level on one of the two register reset pins SHR andSTR will clear the corresponding register.

Features

■5 V tolerant inputs/outputs for interfacing with 5 V logic

■Wide supply voltage range from 1.2 V to 3.6 V

■CMOS low-power consumption

■Direct interface with TTL levels

■Balanced propagation delays

■All inputs have Schmitt-trigger action

■Complies with JEDEC standard JESD8-B/JESD36

■ESD protection:

  ◆HBM JESD22-A114-D exceeds 2000 V

  ◆CDM JESD22-C101-C exceeds 1000 V

■Specified from−40°C to +85°C and−40°C to +125°C.

Applications

■Serial-to-parallel data conversion

■Remote control holding register

74LVC594ABQ PDF数据文档
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