SN74ALS27A
SN74ALS27A is Triple 3-Input Positive-NOR Gate manufactured by Texas Instruments.
description
These devices contain three independent 3-input positive-NOR gates. They perform the Boolean functions Y = A
- B
- C or Y = A + B + C in positive logic.
The SN54ALS27A and SN54AS27 are characterized for operation over the full military temperature range of
- 55°C to 125°C. The SN74ALS27A and SN74AS27 are characterized for operation from 0°C to 70°C.
FUNCTION TABLE (each gate)
INPUTS
OUTPUT Y
H logic symbol†
1A
≥1
2 1B
13 1C
3 2A
4 2B
5 2C
9 3A
10 3B
11 3C
12...
