The 74LS155PC is a signal Switches, Multiplexers, Decoder made by Texas Instruments in a PDIP-16 package with 16 pins. 0℃~+70℃ 35ns@5V,50pF 4.75V~5.25V 400uA 6.1mA 74LS 8mA Decoder Reverse function Single Supply PDIP-16 Signal Switches, Multiplexers, Decoders ROHS.
PCBKit's library has its KiCad symbol (74xx:74LS155, from KiCad's library) and its footprint (Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3210381). 12 open-source boards in 10 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | Ea1 | Input |
| 2 | Ea2 | Input |
| 3 | A1 | Input |
| 4 | Q3a | Output |
| 5 | Q2a | Output |
| 6 | Q1a | Output |
| 7 | Q0a | Output |
| 8 | GND | Power in |
| 9 | Q0b | Output |
| 10 | Q1b | Output |
| 11 | Q2b | Output |
| 12 | Q3b | Output |
| 13 | A0 | Input |
| 14 | Eb1 | Input |
| 15 | Eb2 | Input |
| 16 | VCC | Power in |
Nakazoto/CenturionComputer
This is just a simple backup of all the files related to the Centurion that I have stored on my HD. The Wiki itself has far more in-depth information about the Centurion and it's individual cards.
ephemeridis/GRBL_board
This is a PCB designed to run GRBL, an open source CNC control software that is designed and optimised for Arduino.
RetroStack/TRS-80-Model-I-Expansion-Interface-Rev-D
Hardware Replica of the TRS-80 Model I Expansion Interface - Revision D
<iframe src="https://pcbkit.io/embed/parts/ti/74LS155PC" title="74LS155PC in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/74LS155PC.jpg" alt="74LS155PC" width="1200" height="900">[](https://pcbkit.io/parts/ti/74LS155PC)Yes. The symbol is 74xx:74LS155 and the footprint Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
PDIP-16, with 16 pins. Its footprint is drawn on this page.
Texas Instruments publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C3210381, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the SN74HC138NED-GMIC by GREENMICRO, the 74HC138N by HGSEMI, the 74HC139N by HGSEMI and the 74HC238N by HGSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.
12 boards in 10 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
