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The BU4001B and BU4001BF are 2-input positive logic NOR gates, each with four built-in circuits. A buffer achieved by an inverter added at the gate output improves the input / output propagation characteristic and minimizes variation in the propagation time caused by increase of the load capacitance.
BU4001BF Maximum Ratings
Parameter
Symbol
Limits
Unit
Power supply voltage
VDD
0.3 ~ + 18
V
Power dissipation
Pd
1000 (DIP), 450 (SOP)
mW
Operating temperature
Topr
40 ~ + 85
Storage temperature
Tstg
55 ~ + 150
Input voltage
VIN
0.3 ~ VDD + 0.3
V
BU4001BF Features
1) Low power dissipation. 2) Wide range of operating power supply voltage. 3) High input impedance. 4) High fan-out. 5) Direct drive of 2 L-TTL inputs and 1 LS-TTL input.