DS8640
DS8640 is Quad NOR Unified Bus Receiver manufactured by National Semiconductor.
- Part of the DS8640N comparator family.
- Part of the DS8640N comparator family.
DS7640 DS8640 Quad NOR Unified Bus Receiver
February 1996
DS7640 DS8640 Quad NOR Unified Bus Receiver
General Description
The DS7640 and DS8640 are quad 2-input receivers designed for use in bus organized data transmission systems interconnected by terminated 120X impedance lines The external termination is intended to be 180X resistor from the bus to the a5V logic supply together with a 390X resistor from the bus to ground The design employs a built-in input threshold providing substantial noise immunity Low input current allows up to 27 driver receiver pairs to utilize a mon bus
Features
Y Low input current with normal VCC or VCC e 0V (30 mA typ)
Y High noise immunity (1 1V...
