SN54F38
SN54F38 is Quadruple 2-Input Positive-NAND Buffers manufactured by Texas Instruments.
description
These devices contain four independent 2-input NAND buffer gates with open-collector outputs. They perform the Boolean functions Y = A
- B or Y = A + B in positive logic.
SN54F38 . . . J PACKAGE SN74F38 . . . D OR N PACKAGE
(TOP VIEW)
1A 1 1B 2 1Y 3 2A 4 2B 5 2Y 6 GND 7
14 VCC 13 4B 12 4A 11 4Y 10 3B 9 3A 8 3Y
The open-collector outputs require pullup resistors to perform correctly. They may be connected to other open-collector outputs to implement active-low wired-OR or active-high wired-AND functions. Open-collector devices are often used to generate higher VOH levels.
The SN54F38 is characterized for operation over the full military temperature range of
- 55°C to 125°C. The SN74F38 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE (each gate)
SN54F38 . . . FK PACKAGE (TOP VIEW)
4B
1A
1B
1Y
3 2 1 20 19
4A
NC 5
17 NC
2A 6
16 4Y
NC 7
15 NC
2B 8
14 3B
9 10 11 12 13
3A
3Y
2Y
INPUTS...
