he HEF4001B is a quad 2-input *R gate. The outputs are fully buffered for the highest
noise immunity and pattern insensitivity to output impedance.
It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS
(usually ground). Unused inputs must be connected to VDD, VSS, or another input.
The device is suitable for use over both the industrial (-40 °C to +85 °C) and automotive
(-40 °C to +125 °C) temperature ranges.
