

74AC138SC
FAIRCHILD
3-of-8 Decoder/Demultiplexer
- Category
- Uncategorised
- Package
- SOIC16
- Pins
- 16
Overview
The 74AC138SC is an uncategorised made by FAIRCHILD in a SOIC16 package with 16 pins. 3-of-8 Decoder/Demultiplexer.
PCBKit's library has its KiCad symbol (Standard Logic:74138_b, from CERN's library) and its footprint (Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 11 open-source boards in 6 repositories on GitHub use it.
Symbol
Footprint
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | A0 | Input |
| 2 | A1 | Input |
| 3 | A2 | Input |
| 4 | E1 | Input |
| 5 | E2 | Input |
| 6 | E3 | Input |
| 7 | O7 | Output |
| 8 | GND | Power in |
| 9 | O6 | Output |
| 10 | O5 | Output |
| 11 | O4 | Output |
| 12 | O3 | Output |
| 13 | O2 | Output |
| 14 | O1 | Output |
| 15 | O0 | Output |
| 16 | VCC | Power in |
Open-source boards using it
All 11- 4 layers169.7 × 99.8 mm

- 2 layers101.6 × 83.8 mm

Z80DevBoard
dbuchwald/Z80DevBoard
Simple Z80 based prototyping and development board designed as extension to Arduino Mega 2560
39 parts3MIT - 2 layers160 × 100 mm

- 2 layers172.7 × 108.6 mm

Clementina hardware
fran150/clementina-hardware
KiCad schematic for Clementina, a 3.3V W65C02S computer with a Raspberry Pi Pico 2 W (MIA) handling video, audio, storage and I/O.
48 partsGPL-3.0 - 2 layers131.9 × 164.6 mm

- 2 layers160 × 100 mm

- 2 layers160 × 100 mm

- 2 layers160 × 100 mm

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Is there a KiCad symbol and footprint for the 74AC138SC?
Yes. The symbol is Standard Logic:74138_b and the footprint Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the 74AC138SC?
SOIC16, with 16 pins. Its footprint is drawn on this page.
What can replace the 74AC138SC?
Parts like it in the library: the CD4017BM(LX) by lingxingic, the DAC0800LCMX-TUDI by Tudi, the TL494-SOP-16 by DDF and the SG3525AES by GREENMICRO. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the 74AC138SC?
11 boards in 6 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
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