Adafruit's GPIO Expander Bonnet: brings a Raspberry Pi's header out to screw terminals, on the Micro HAT outline with the full 40-way GPIO field.
One of the Pi HAT family.
- Made by
Adafruit- SKU
- 4132
- Kind
- Circuit board (PCB)
- Licence
- CC-BY-SA-3.0
- Keywords
- adafruit, bonnet, breakout, expander, gpio, raspberry pi, terminal, hat, mcp23017, i2c
| Overall size (X × Y × Z) | 65 × 30.7 × 12.1 mm |
|---|---|
| PCB size | 65 × 30.7 mm |
| PCB thickness | 1.6 mm |
| Mounting holes | 4 × Ø2.8 mm |
| Through-hole pads | 105 |
| Components | 19 |
| Function | breakout |
| Form factor | hat |
| Chip | MCP23017 |
| GPIO pins | 16 |
| Interface | I2C |
| Logic level | 3.3 V |
| Weight | 10.4 g |
| Qty | Part | Value | References | Datasheet |
|---|---|---|---|---|
| × 7 | SMD Resistor0603 | 10K | R1, R2, R3, R4, R5, R6, R7 | RC_L series datasheet (Yageo) |
| × 2 | Box Header8 · through-hole | IDC2x8 | JP2, JP7 | |
| × 2 | SMD Capacitor0805 | 10uF | C1, C3 | X7R SMD MLCC series datasheet (KEMET) |
| × 2 | SMD Resistor0603 | DNP | R8, R9 | RC_L series datasheet (Yageo) |
| × 2 | SOTSOT-23W | BSS138 | Q1, Q2 | BSS138 datasheet (Diodes Incorporated) |
| × 1 | SMD Capacitor0603 | 0.1uF | C2 | X7R SMD MLCC series datasheet (KEMET) |
| × 1 | SOIC / SSOP / TSSOPSSOP-28 | MCP23017SS | IC1 | MCP23017 datasheet (Microchip) |
| × 1 | SOTSOT-23-5 | RT9080-3.3 | U1 | RT9080 datasheet (Richtek) |
| × 1 | Wire-to-Board ConnectorSH side entry · 4 | STEMMA_I2C_QT | CONN1 | JST SH datasheet (JST) |
