74F27
74F27 is TRIPLE 3-INPUT POSITIVE-NOR GATES manufactured by Texas Instruments.
description
These devices contain three independent 3-input NOR gates. They perform the Boolean functions Y = A
- B
- C or Y = A + B + C in positive logic.
The SN54F27 is characterized for operation over the full military temperature range of
- 55°C to 125°C. The SN74F27 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE (each gate)
INPUTS
OUTPUT Y
L L L H logic symbol†
1A
≥1
2 1B
12 1Y
1C
3 2A
4 2B
5 2C
6 2Y
9 3A
10 3B
8...
