CD74ACT573中文资料具有三态输出的同向八路透明锁存器数据手册TI规格书

描述 Description

The RCA-CD54/74AC563 and CD54/74AC573 and the CD54/74ACT563 and CD54/74ACT573 octal transparent 3-state latches use the RCA ADVANCED CMOS technology. The outputs are transparent to the inputs when the Latch Enable (LE\\) is HIGH. When the Latch Enable (LE\\) goes LOW, the data is latched. The Output Enable (OE\\) controls the 3-state ouputs. When the Output Enable (OE\\) is HIGH, the outputs are in the high-impendance state. The latch operation is independent of the state of the Output Enable.
The CD74AC/ACT563 and CD74AC/ACT573 are supplied in 20-lead dual-in-line plastic packages (E suffix) and in 20-lead dual-in-line small-outline plastic packages (M suffix). Both package types are operable over the folowing temperature ranges: Commerical (0 to 70°C); Industrial (-40 to +85°C); and Extended Industrial/Military (-55 to +125°C).
The CD54AC/ACT563 and CD54AC/ACT573, available in chip form (H suffix), are operable over the -55 to +125°C temperature range.

特性 Features

• Buffered inputs
• Typical propagation delay: 4.3 ns @ VCC = 5 V, TA = 25°C, CL = 50 pf
• Exceeds 2-kV ESD Protection - MIL-STD-883, Method 3015
• SCR-Latchup-resistant CMOS process and circuit design
• Speed of bipolar FAST*/AS/D with significantly reduced power consumption
• Balanced propagation delays
• AC types feature 1.5-V to 5.5-V operation and balanced noise immunity at 30% of the supply
• ±24-mA output drive current -Fanout to 15 FAST* ICs -Drives 50-ohm transmission lines
• Characterized for operation from –40° to 85°C
*FAST is a Registered Trademark of Fairchild Semiconductor Corp.

简介

CD74ACT573属于集成电路（IC）的锁存器。由TI制造生产的CD74ACT573锁存器锁存器是类似于触发器的基本数字存储设备，但是不同之处在于，在锁存使能（或类似命名）信号处于有效逻辑状态的任何时间，保持的逻辑状态都可以改变。“透明”锁存器还允许设备输出在锁存使能信号有效时反映输入的当前状态，而相反的是，状态仅在保持状态已固定时改变。