SN74HCS20DR集成电路（IC）的门反相器规格书PDF中文资料

SN74HCS20DR属于集成电路（IC）的门反相器。由德州仪器制造生产的SN74HCS20DR门和反相器逻辑栅极和逆变器系列中的产品对单个逻辑信号执行基本逻辑运算（例如 AND、NOT、OR 等）。与触发器不同，它们不能够存储信息，不会对提供给其输入的信号立即做出响应。虽然早就被集成电路实施形式所取代，以用于实现复杂功能，但分立栅极仍可在仅需要非常简单逻辑功能的情况下使用。

1 Features

1• 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 5 V

• Extended ambient temperature range: –40°C to

+125°C, TA

2 Applications

• Alarm / tamper detect circuit

• S-R latch

3 Description

This device contains two independent 4-input NAND

gates with Schmitt-trigger inputs. Each gate performs

the Boolean function Y = A ● B ● C ● D in positive

logic.