Difference between revisions of "DIGIO-128 Rev X4 Assembly Sheet"
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| Line 22: | Line 22: | ||
| 1 (option) | | 1 (option) | ||
| 0 | | 0 | ||
| − | | R7 ( | + | | R7 (option - below) |
| | | | ||
| 2 | | 2 | ||
| Line 28: | Line 28: | ||
| J2,J3 | | J2,J3 | ||
|- | |- | ||
| − | | 3 | + | | 2 (3) |
| 10K (1/4W) | | 10K (1/4W) | ||
| − | | R1,R2,R6 ( | + | | R1,R2, |
| + | R6 (option - below) | ||
| | | | ||
| 1 | | 1 | ||
| Line 69: | Line 70: | ||
|- | |- | ||
|} | |} | ||
| − | |||
== R6/R7 Option == | == R6/R7 Option == | ||
Revision as of 12:54, 12 February 2021
Parts List
| Qty | Value | RefDes | Qty | Value | RefDes | |
|---|---|---|---|---|---|---|
| 8 | 0.1uF Cap | C1,C2,C3,C4,C5,C6,C7,C8 | 1 | CONN, 2X03 | J4 | |
| 1 (option) | 0 | R7 (option - below) | 2 | CONN, 1x4 | J2,J3 | |
| 2 (3) | 10K (1/4W) | R1,R2,
R6 (option - below) |
1 | CONN, 1x5 | J1 | |
| 1 | 1K (1/4W) | R5 | 8 | CONN, 2x10 | P1,P2,P3,P4,P6,P7,P8,P9 | |
| 2 | 2.2K (1/4W) | R3,R4 | 2 | CONN, 2X2 | P10,P5 | |
| 1 | 24LC024-I/P | U9 | ||||
| 8 | MCP23017P | U1,U2,U3,U4,U5,U6,U7,U8 |
R6/R7 Option
- R6, R7 provide pull-up or pull-down for I2C address A2 line
128-bit option
- Leave R7 open (no resistor)
- Install jumper wire into R6
64-bit option
- Typical - for I2C address = 0x20-0x23 leave R7 open, install jumper wire into R7
- For I2C address = 0x24-0x27 leave R7 open, install 10K resistor in R6
