SN74ALS873B是TI公司的一款D类锁存器产品，SN74ALS873B是具有三态输出的二路 4 位 D 类锁存器，本页介绍了SN74ALS873B的产品说明、应用、特性等，并给出了与SN74ALS873B相关的TI元器件型号供参考。
SN74ALS873B - 具有三态输出的二路 4 位 D 类锁存器 - D类锁存器 - 触发器/锁存器/寄存器 - TI公司（Texas Instruments，德州仪器）
These dual 4-bit D-type latches feature 3-state outputs designed specifically for bus driving. These devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
The dual 4-bit latches are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs in true form, according to the function table. When LE is low, the outputs are latched. When the clear () input goes low, the Q outputs go low independently of LE. The outputs are in the high-impedance state when the output-enable () input is at a high logic level.
The SN54ALS873B and SN54AS873A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS873B and SN74AS873A are characterized for operation from 0°C to 70°C.
- 3-State Buffer-Type Outputs Drive Bus Lines Directly
- Bus-Structured Pinout
- Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Plastic (NT) and Ceramic (JT) DIPs
