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MCP41HV31T-103E
Public Made by Adomby adom
Microchip Tech Digital Potentiometers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMCP41HV31T-103E
Microchip Tech · Digital Potentiometers · TSSOP-14
MCP41HV31T-103E from Microchip Tech, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VL | power_in | Positive digital power supply input relative to DGND, ranging from 1.8V to 5.5V, with a decoupling capacitor to DGND recommended. |
| 2 | SCK | input | SPI serial clock input (Schmitt trigger) connected to the host controller's SCK; the device is an SPI slave so this pin is input-only. |
| 3 | CS | input | SPI chip select input (Schmitt trigger); forcing it to VIL enables serial commands. |
| 4 | SDI | input | SPI serial data in pin (Schmitt trigger), connected to the host controller's SDO. |
| 5 | SDO | output | SPI serial data out pin, connected to the host controller's SDI, used to read the wiper and TCON registers or monitor the command error bit. |
| 6 | WLAT | input | Wiper latch enable (Schmitt trigger): 0 transfers the received SPI buffer value to the wiper register, 1 holds the value in the SPI shift register buffer. |
| 7 | SHDN | input | Shutdown input (Schmitt trigger) that forces the resistor network terminals into the hardware shutdown state. |
| 8 | NC | unconnected | Not internally connected to the die; to reduce noise coupling, connect either to DGND or VL. |
| 9 | DGND | power_in | Digital ground reference for the device. |
| 10 | V- | power_in | Analog negative potential supply, which must not have a higher potential than the DGND pin. |
| 11 | P0B | bidirectional | Potentiometer 0 Terminal B (zero-scale, wiper code 0x00), no polarity, supports positive and negative current, voltage must be between V+ and V-. |
| 12 | P0W | bidirectional | Potentiometer 0 wiper terminal, no polarity, supports positive and negative current, voltage must be between V+ and V-. |
| 13 | P0A | bidirectional | Potentiometer 0 Terminal A (full-scale, wiper code 0x7F for 7-bit), no polarity, supports positive and negative current, voltage must be between V+ and V-. |
| 14 | V+ | power_in | Analog positive supply voltage, which must have a higher potential than the V- pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TSSOP-14 |
| Category | ADC/DAC/Data Conversion |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
MCP41HV31T-103E - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
mcp41hv31t-103e-etched.step/mcp41hv31t-103e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mcp41hv31t-103e.step/mcp41hv31t-103e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (92 pp, sha256
93f543bd1e07174a, retrieved 2026-10-26, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).