
IO Expander Daughterboard
STDIO Expander Daughterboard
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License
:CC-BY-NC-SA 3.0
Creation time:2020-04-13 00:00:45Update time:2021-10-24 06:28:13
Description
Mic2981/Passthrough daughterboard for the Raspberry Pi IO Expander (https://easyeda.com/MadOverlord/rbp-io-expander)
Rev 2.0 adds optional pulldown resistor arrays on underside of board.
Design Drawing
schematic diagram
PCB
BOM
ID | Name | Designator | Footprint | Quantity |
---|---|---|---|---|
1 | MIC2981-TH | MIC1 | DIP-18_NO | 1 |
2 | SOLDERJUMPERNO | SJ7,SJ2,SJ3,SJ4,SJ5,SJ6,SJ1,SJ8 | SJ_2S-NO | 8 |
3 | TXS0108E DAUGHTERBOARD | TSX-A-8 | TXS0108E DAUGHTERBOARD | 1 |
4 | 4.7K | RN1,RN2,RN3,RN4 | RES-ARRAY-SMD_0603-8P-L3.2-W1.6-BL-REV | 4 |

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