SN54AS573A - 具有三态输出的八路 D 类透明锁存器

SN54AS573A是TI德州仪器公司的一款D类锁存器产品，SN54AS573A是具有三态输出的八路 D 类透明锁存器，本站介绍了SN54AS573A的封装应用图解、特点和优点、功能等，并给出了与SN54AS573A相关的TI元器件型号供参考。

SN54AS573A - 具有三态输出的八路 D 类透明锁存器 - D类锁存器 - 触发器/锁存器/寄存器 - 德州仪器

产品描述

These octal D-type transparent latches feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

While the latch-enable (LE) input is high, outputs (Q) respond to the data (D) inputs. When LE is low, the outputs are latched to retain the data that was set up.

A buffered output-enable () input can be used to place the eight outputs in either a normal logic state (high or low) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without interface or pullup components.

does not affect internal operation of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

The SN54ALS573C and SN54AS573A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS573C and SN74AS573A are characterized for operation from 0°C to 70°C.

产品特性

3-State Buffer-Type Outputs Drive Bus Lines Directly
Bus-Structured Pinout
True Logic Outputs
Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), Standard Plastic (N) and Ceramic (J) 300-mil DIPs, and Ceramic Flat (W) Packages

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