SN74AHC595DBR集成電路（IC）的移位寄存器規(guī)格書PDF中文資料

SN74AHC595DBR屬于集成電路（IC）的移位寄存器。由德州儀器制造生產(chǎn)的SN74AHC595DBR移位寄存器移位寄存器是低級邏輯器件，通常用于在串行和并行方式之間轉(zhuǎn)換數(shù)字邏輯信號形式的數(shù)據(jù)，或在數(shù)字字內(nèi)移動數(shù)據(jù)位的位置。移位寄存器通常使用集成到一個設(shè)備中的一組觸發(fā)器來實(shí)現(xiàn)，常用于集成度更高的邏輯器件，但仍可用于 I/O 擴(kuò)展等應(yīng)用，在這些應(yīng)用中離散形式的函數(shù)可能會非常有用。

1 Features

? Operating range: 2V to 5.5V VCC

? 8-bit serial-in, parallel-out shift

? Latch-up performance exceeds 100mA per JESD

78, class II

? ESD protection exceeds JESD 22

– 2000V human-body model (A114-A)

– 1000V charged-device model (C101)

2 Applications

? Network Switches

? Power Infrastructures

? LED Displays

? Servers

3 Description

The SN74AHC595 device contains an 8-bit serial-in,

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 registers. The shift register has a

direct overriding clear ( SRCLR) input, a serial (SER)

input, and a serial output for cascading. When the

output-enable ( OE) input is high, all outputs except

QH′ are in the high-impedance state.