Catalog
Octal Bus Transceivers With 3-State Outputs
Key Features
• Bidirectional Bus Transceivers in High-Density 20-Pin PackagesLower-Power Versions of SN74ALS640B and SN74ALS645APackage Options Include Plastic Small-Outline (DW) Packages and Standard Plastic (N) 300-mil DIPsBidirectional Bus Transceivers in High-Density 20-Pin PackagesLower-Power Versions of SN74ALS640B and SN74ALS645APackage Options Include Plastic Small-Outline (DW) Packages and Standard Plastic (N) 300-mil DIPs
Description
AI
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 on the level at the direction-control
(DIR) input. The output-enable () input can be used to disable the device so that the buses are effectively isolated. The SN74ALS1640A features inverting logic, while the SN74ALS1645A features noninverting logic.
The SN74ALS1640A and SN74ALS1645A are characterized for operation from 0°C to 70°C.
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 on the level at the direction-control
(DIR) input. The output-enable () input can be used to disable the device so that the buses are effectively isolated. The SN74ALS1640A features inverting logic, while the SN74ALS1645A features noninverting logic.
The SN74ALS1640A and SN74ALS1645A are characterized for operation from 0°C to 70°C.
