SN74ALS641A数据手册集成电路（IC）的缓冲器驱动器接收器收发器规格书PDF

描述 Description

These octal bus transceivers are designed for asynchronous two-way communication between
data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending upon the level at the direction-control (DIR) input. The output-enable input disables the device so that the buses are effectively isolated.
The -1 versions of the SN74ALS641A and SN74ALS642A are identical to the standard versions, except that the recommended maximum IOL is increased to 48 mA in the -1 versions.
The SN74ALS641A, SN74ALS642A, and SN74AS641 are characterized for operation from 0°C to 70°C.
 
 

特性 Features

• Bidirectional Bus Transceivers in High-Density 20-Pin Packages
• Choice of True or Inverting Logic
• Package Options Include Plastic Small-Outline (DW) Packagesand Standard Plastic (N) 300-mil DIPs