HD74BC620A - Octal Bus Transceivers With 3 State Outputs
Description
The HD74BC620A provides high drivability and operation equal to or better than high speed bipolar standard logic IC by using Bi-CMOS process.
Features
low power dissipation that is about 1/5 of high speed bipolar logic IC. When the frequency is 10 MHz. The device has eight bus transceivers with three state outputs in a 20 pin package. This device allows data transmission from the A bus to the B bus or from the B bus to the A bus depending upon the logic levels at the enable inputs (GBA and GAB). The enable inputs can be used to disable the device so that the buses are effectively isolated. Features.
HD74BC623A- Octal Bus Transceivers With 3 State Outputs
HD74BC640A- Octal Bus Transceivers With 3 State Outputs
HD74BC645A- Octal Bus Transceivers With 3 State Outputs
HD74BC240A- Octal Buffers/Line Drivers With 3 State Outputs
HD74BC244A- Octal Buffers/Line Drivers With 3 State Outputs
HD74BC245A- Octal Bus Transceivers With 3 State Outputs
HD74BC373A- Octal D Type Transparent Latches With 3 State Outputs
HD74BC374A- Octal D Type Flip Flops With 3 State Outputs
Full PDF Text Transcription
Click to expand full text
HD74BC620A
Octal Bus Transceivers With 3 State Outputs
ADE-205-024 (Z) Rev. 0 June 1993 Description
The HD74BC620A provides high drivability and operation equal to or better than high speed bipolar standard logic IC by using Bi-CMOS process. The device features low power dissipation that is about 1/5 of high speed bipolar logic IC. When the frequency is 10 MHz. The device has eight bus transceivers with three state outputs in a 20 pin package. This device allows data transmission from the A bus to the B bus or from the B bus to the A bus depending upon the logic levels at the enable inputs (GBA and GAB). The enable inputs can be used to disable the device so that the buses are effectively isolated.
Features
• • • • Input/Output are at high impedance state when power supply is off.