74F642中文资料飞利浦数据手册PDF规格书

74F641 Octal Bus Transceiver with Common Output Enable, Non-Inverting (Open Collector)

74F642 Octal Bus Transceiver with Common Output Enable, Inverting (Open Collector)

FEATURES

• High-impedance NPN base inputs for reduced loading

(20µA in High and Low states)

• Octal bidirectional bus interface

• Common Output Enable for both Transmit and Receive modes

• Open collector outputs sink 64mA

• —74F641, non-inverting

—74F642, inverting