CD74HCT173集成电路（IC）的触发器规格书PDF中文资料

CD74HCT173属于集成电路（IC）的触发器。由德州仪器制造生产的CD74HCT173触发器触发器是能够存储单个逻辑状态或信息“位”的基本数字存储器件。这些器件至少有两个输入；一个或多个用于传递要存储的数据，另一个用于指示存储该数据的时间点。不同的触发器类型，例如 D（延迟）、SR（置位复位）和 JK，对提供给其输入的信号有不同的响应，可用于实现不同的逻辑功能。这些器件与锁存器的不同之处在于它们是边缘敏感器件，其保持的逻辑状态仅在接收到有效时钟信号时才会改变。

1 Features

• Three-state buffered outputs

• Gated input and output enables

• Fanout (over temperature range)

– Standard outputs : 10 LSTTL loads

– Bus driver outputs : 15 LSTTL loads

• Wide Operating Temperature Range : -55°C to

125°C

• Balanced propagation delay and transition times

• Significant power and reduction compared to

LSTTL logic ICs

• HC types

– 2 V to 6 V operation

– High noise immunity: NIL = 30%, NIH = 30% of

VCC at VCC = 5 V

• HCT types

– 4.5 V to 5.5 V Operation

– Direct LSTTL input logic compatibility, VIL= 0.8

V (Max), VIH = 2 V (Min)

– CMOS input compatibility, Il ≤ 1μA at VOL, VOH

2 Description

The CDx4HC173 and CDx4HCT173 contains four

independent D-type flip-flops with shared clock (CP),

reset (MR), and data enable (E1, E2) pins.