component
MCP4151T-103E
Public Made by Adomby adom
Microchip Tech Digital Potentiometers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
MCP4151T-103E
Microchip Tech · Digital Potentiometers · SOIC-8
MCP4151T-103E from Microchip Tech, in a SOIC-8. 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 | CS | input | SPI chip select input; forcing it to VIL enables serial commands and forcing it to VIHH enables high-voltage serial commands. |
| 2 | SCK | input | SPI clock input, high-voltage tolerant with Schmitt trigger and internal weak pull-up. |
| 3 | SDI/SDO | bidirectional | Multiplexed SPI serial data input/output on the MCP41X1; it drives read data after a valid Read command's first 6 bits, and the SDO is open drain using the internal pull-up. |
| 4 | VSS | power_in | Device ground reference. |
| 5 | P0A | passive | Potentiometer 0 terminal A, the fixed Full-Scale wiper connection, with voltage that must be between VSS and VDD. |
| 6 | P0W | passive | Potentiometer 0 wiper terminal, the adjustable terminal, with voltage that must be between VSS and VDD. |
| 7 | P0B | passive | Potentiometer 0 terminal B, the fixed Zero Scale wiper connection (wiper value 0x00), with voltage that must be between VSS and VDD. |
| 8 | VDD | power_in | Positive power supply input relative to VSS; device operates from 1.8V to 5.5V, with characteristics specified from 2.7V to 5.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-8 |
| Category | ADC/DAC/Data Conversion |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VDD | 2.7 | 5.5 | V | 4 | ||
| Supply Voltage (serial interface only) | VDD | 1.8 | 2.7 | V | Serial Interface only. | 4 | |
| Nominal Resistance -103 (±20%) | RAB | 8 | 10 | 12 | kΩ | -103 devices (Note 1) | 5 |
| Resistance tolerance | -20 | 20 | % | RAB | 5 | ||
| VDD Start Voltage to ensure Wiper Reset | VBOR | 1.65 | V | RAM retention voltage (VRAM) < VBOR | 4 | ||
| Delay after device exits the reset state | TBORD | 10 | 20 | µs | VDD > VBOR | 4 | |
| Supply Current, serial interface active | IDD | 450 | µA | Serial Interface Active, VDD = 5.5V, CS = VIL, SCK @ 5 MHz, write all 0's to volatile Wiper 0 (address 0h) | 4 | ||
| Supply Current, serial interface inactive | IDD | 2.5 | 5 | µA | Serial Interface Inactive, CS = VIH, VDD = 5.5V | 4 | |
| Supply Current, high-voltage active | IDD | 0.55 | 1 | mA | Serial Interface Active, VDD = 5.5V, CS = VIHH, SCK @ 5 MHz, decrement volatile Wiper 0 (address 0h) | 4 | |
| Wiper Resistance | RW | 75 | 160 | Ω | VDD = 5.5 V, IW = 2.0 mA, code = 00h | 5 | |
| Wiper Resistance | RW | 75 | 300 | Ω | VDD = 2.7 V, IW = 2.0 mA, code = 00h | 5 | |
| Nominal Resistance Tempco | ΔRAB/ΔT | 50 | ppm/°C | TA = -20°C to +70°C | 5 | ||
| Nominal Resistance Tempco | ΔRAB/ΔT | 100 | ppm/°C | TA = -40°C to +85°C | 5 | ||
| Nominal Resistance Tempco | ΔRAB/ΔT | 150 | ppm/°C | TA = -40°C to +125°C | 5 | ||
| Ratiometric Tempco | ΔVWB/ΔT | 15 | ppm/°C | Code = Midscale (80h or 40h) | 5 | ||
| Resistor Terminal Input Voltage Range | VA,VW,VB | 0 | 5.5 | V | VSS to VDD; Note 5, Note 6 | 5 | |
| Maximum current through A, W or B | IW | 2.5 | mA | Note 6, worst case current through wiper when wiper is either Full-Scale or Zero Scale. | 5 | ||
| Leakage current into A, W or B | IWL | 100 | nA | MCP4XX1 PxA = PxW = PxB = VSS | 5 | ||
| Full-Scale Error 10 kΩ 8-bit | VWFSE | -3.5 | -0.1 | LSb | 10 kΩ 8-bit 3.0V ≤ VDD ≤ 5.5V | 6 | |
| Zero-Scale Error 10 kΩ 8-bit | VWZSE | 0.1 | 3.5 | LSb | 10 kΩ 8-bit 3.0V ≤ VDD ≤ 5.5V | 6 | |
| Potentiometer INL 8-bit | INL | -1 | 0.5 | 1 | LSb | 8-bit 3.0V ≤ VDD ≤ 5.5V MCP4XX1 devices only (Note 2) | 6 |
| Potentiometer DNL 8-bit | DNL | -0.5 | 0.25 | 0.5 | LSb | 8-bit 3.0V ≤ VDD ≤ 5.5V MCP4XX1 devices only (Note 2) | 6 |
| Bandwidth -3 dB 10 kΩ 8-bit | BW | 1 | MHz | 10 kΩ 8-bit Code = 80h, load = 30 pF | 6 | ||
| Rheostat INL 10 kΩ 8-bit | R-INL | -1.5 | 0.5 | 1.5 | LSb | 10 kΩ 8-bit 5.5V, IW = 450 µA | 7 |
| Rheostat INL 10 kΩ 8-bit | R-INL | -5.5 | 2.5 | 5.5 | LSb | 10 kΩ 8-bit 3.0V, IW = 240 µA (Note 7) | 7 |
| Rheostat DNL 10 kΩ 8-bit | R-DNL | -0.5 | 0.25 | 0.5 | LSb | 10 kΩ 8-bit 5.5V, IW = 450 µA | 8 |
| Rheostat DNL 10 kΩ 8-bit | R-DNL | -1 | 0.25 | 1 | LSb | 10 kΩ 8-bit 3.0V (Note 7) | 8 |
| Capacitance (PA) | CAW | 75 | pF | f =1 MHz, Code = Full-Scale | 8 | ||
| Capacitance (PW) | CW | 120 | pF | f =1 MHz, Code = Full-Scale | 8 | ||
| Capacitance (PB) | CBW | 75 | pF | f =1 MHz, Code = Full-Scale | 8 | ||
| Schmitt Trigger High Input Threshold | VIH | 0.45 | V | 2.7V ≤ VDD ≤ 5.5V; min is 0.45 VDD | 9 | ||
| Schmitt Trigger High Input Threshold | VIH | 0.5 | V | 1.8V ≤ VDD ≤ 2.7V; min is 0.5 VDD | 9 | ||
| Schmitt Trigger Low Input Threshold | VIL | 0.2 | V | max is 0.2VDD | 9 | ||
| High Voltage Limit | VMAX | 12.5 | V | Pin can tolerate VMAX or less. | 9 | ||
| Output Low Voltage (SDO) | VOL | 0 | 0.3 | V | IOL = 5 mA, VDD = 5.5V; max is 0.3VDD | 9 | |
| Output High Voltage (SDO) | VOH | 0.7 | V | IOH = -2.5 mA, VDD = 5.5V; min is 0.7VDD | 9 | ||
| Weak Pull-up/Pull-down Current | IPU | 1.75 | mA | Internal VDD pull-up, VIHH pull-down, VDD = 5.5V, VCS = 12.5V | 9 | ||
| CS Pull-up/Pull-down Resistance | RCS | 16 | kΩ | VDD = 5.5V, VCS = 3V | 9 | ||
| Input Leakage Current | IIL | -1 | 1 | µA | VIN = VDD and VIN = VSS | 9 | |
| Pin Capacitance | CIN, COUT | 10 | pF | fC = 20 MHz | 9 | ||
| Power Supply Sensitivity 8-bit | PSS | 0.0015 | 0.0035 | %/% | VDD = 2.7V to 5.5V, VA = 2.7V, Code = 80h (MCP41X2/MCP42X2 only) | 10 | |
| SCK Input Frequency | FSCK | 10 | MHz | VDD = 2.7V to 5.5V | 11 | ||
| SCK Input Frequency | FSCK | 1 | MHz | VDD = 1.8V to 2.7V | 11 | ||
| CS Active to SCK↑ | TcsA2scH | 60 | ns | 11 | |||
| SCK input high time | TscH | 45 | ns | VDD = 2.7V to 5.5V | 11 | ||
| SCK input low time | TscL | 45 | ns | VDD = 2.7V to 5.5V | 11 | ||
| Setup time of SDI to SCK↑ | TDIV2scH | 10 | ns | 11 | |||
| Hold time of SDI from SCK↑ | TscH2DIL | 20 | ns | 11 | |||
| SDO data output valid after SCK↓ | TscL2DOV | 70 | ns | VDD = 2.7V to 5.5V | 11 | ||
| Voltage on VDD with respect to VSS | VDD | -0.6 | 7 | V | 3 | ||
| Voltage on CS, SCK, SDI, SDI/SDO, SHDN with respect to VSS | -0.6 | 12.5 | V | 3 | |||
| Maximum current into PXA, PXW & PXB pins | -2.5 | 2.5 | mA | 3 | |||
| Storage temperature | -65 | 150 | °C | 3 | |||
| Ambient temperature with power applied | -40 | 125 | °C | 3 | |||
| Maximum Junction Temperature | TJ | 150 | °C | 3 | |||
| Operating Temperature Range | TA | -40 | 125 | °C | 14 | ||
| Thermal Resistance, 8L-SOIC | θJA | 149.5 | °C/W | 14 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | P = Plastic Dual In-line (PDIP) (300 mil), 8/14-lead SN = Plastic Small Outline (SOIC), (150 mil), 8-lead | 85 |
CAD (KiCad official)
- Symbol:
MCP4151T-103E - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
mcp4151t-103e-etched.step/mcp4151t-103e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mcp4151t-103e.step/mcp4151t-103e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (88 pp, sha256
6c60b083b2ef0a92, retrieved 2026-10-31, 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).
# MCP4151T-103E
**Microchip Tech** · Digital Potentiometers · SOIC-8
MCP4151T-103E from Microchip Tech, in a SOIC-8. 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 | CS | input | SPI chip select input; forcing it to VIL enables serial commands and forcing it to VIHH enables high-voltage serial commands. |
| 2 | SCK | input | SPI clock input, high-voltage tolerant with Schmitt trigger and internal weak pull-up. |
| 3 | SDI/SDO | bidirectional | Multiplexed SPI serial data input/output on the MCP41X1; it drives read data after a valid Read command's first 6 bits, and the SDO is open drain using the internal pull-up. |
| 4 | VSS | power_in | Device ground reference. |
| 5 | P0A | passive | Potentiometer 0 terminal A, the fixed Full-Scale wiper connection, with voltage that must be between VSS and VDD. |
| 6 | P0W | passive | Potentiometer 0 wiper terminal, the adjustable terminal, with voltage that must be between VSS and VDD. |
| 7 | P0B | passive | Potentiometer 0 terminal B, the fixed Zero Scale wiper connection (wiper value 0x00), with voltage that must be between VSS and VDD. |
| 8 | VDD | power_in | Positive power supply input relative to VSS; device operates from 1.8V to 5.5V, with characteristics specified from 2.7V to 5.5V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-8 |
| Category | ADC/DAC/Data Conversion |
| Pins | 8 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VDD | 2.7 | | 5.5 | V | | 4 |
| Supply Voltage (serial interface only) | VDD | 1.8 | | 2.7 | V | Serial Interface only. | 4 |
| Nominal Resistance -103 (±20%) | RAB | 8 | 10 | 12 | kΩ | -103 devices (Note 1) | 5 |
| Resistance tolerance | | -20 | | 20 | % | RAB | 5 |
| VDD Start Voltage to ensure Wiper Reset | VBOR | | | 1.65 | V | RAM retention voltage (VRAM) < VBOR | 4 |
| Delay after device exits the reset state | TBORD | | 10 | 20 | µs | VDD > VBOR | 4 |
| Supply Current, serial interface active | IDD | | | 450 | µA | Serial Interface Active, VDD = 5.5V, CS = VIL, SCK @ 5 MHz, write all 0's to volatile Wiper 0 (address 0h) | 4 |
| Supply Current, serial interface inactive | IDD | | 2.5 | 5 | µA | Serial Interface Inactive, CS = VIH, VDD = 5.5V | 4 |
| Supply Current, high-voltage active | IDD | | 0.55 | 1 | mA | Serial Interface Active, VDD = 5.5V, CS = VIHH, SCK @ 5 MHz, decrement volatile Wiper 0 (address 0h) | 4 |
| Wiper Resistance | RW | | 75 | 160 | Ω | VDD = 5.5 V, IW = 2.0 mA, code = 00h | 5 |
| Wiper Resistance | RW | | 75 | 300 | Ω | VDD = 2.7 V, IW = 2.0 mA, code = 00h | 5 |
| Nominal Resistance Tempco | ΔRAB/ΔT | | 50 | | ppm/°C | TA = -20°C to +70°C | 5 |
| Nominal Resistance Tempco | ΔRAB/ΔT | | 100 | | ppm/°C | TA = -40°C to +85°C | 5 |
| Nominal Resistance Tempco | ΔRAB/ΔT | | 150 | | ppm/°C | TA = -40°C to +125°C | 5 |
| Ratiometric Tempco | ΔVWB/ΔT | | 15 | | ppm/°C | Code = Midscale (80h or 40h) | 5 |
| Resistor Terminal Input Voltage Range | VA,VW,VB | 0 | | 5.5 | V | VSS to VDD; Note 5, Note 6 | 5 |
| Maximum current through A, W or B | IW | | | 2.5 | mA | Note 6, worst case current through wiper when wiper is either Full-Scale or Zero Scale. | 5 |
| Leakage current into A, W or B | IWL | | 100 | | nA | MCP4XX1 PxA = PxW = PxB = VSS | 5 |
| Full-Scale Error 10 kΩ 8-bit | VWFSE | -3.5 | -0.1 | | LSb | 10 kΩ 8-bit 3.0V ≤ VDD ≤ 5.5V | 6 |
| Zero-Scale Error 10 kΩ 8-bit | VWZSE | | 0.1 | 3.5 | LSb | 10 kΩ 8-bit 3.0V ≤ VDD ≤ 5.5V | 6 |
| Potentiometer INL 8-bit | INL | -1 | 0.5 | 1 | LSb | 8-bit 3.0V ≤ VDD ≤ 5.5V MCP4XX1 devices only (Note 2) | 6 |
| Potentiometer DNL 8-bit | DNL | -0.5 | 0.25 | 0.5 | LSb | 8-bit 3.0V ≤ VDD ≤ 5.5V MCP4XX1 devices only (Note 2) | 6 |
| Bandwidth -3 dB 10 kΩ 8-bit | BW | | 1 | | MHz | 10 kΩ 8-bit Code = 80h, load = 30 pF | 6 |
| Rheostat INL 10 kΩ 8-bit | R-INL | -1.5 | 0.5 | 1.5 | LSb | 10 kΩ 8-bit 5.5V, IW = 450 µA | 7 |
| Rheostat INL 10 kΩ 8-bit | R-INL | -5.5 | 2.5 | 5.5 | LSb | 10 kΩ 8-bit 3.0V, IW = 240 µA (Note 7) | 7 |
| Rheostat DNL 10 kΩ 8-bit | R-DNL | -0.5 | 0.25 | 0.5 | LSb | 10 kΩ 8-bit 5.5V, IW = 450 µA | 8 |
| Rheostat DNL 10 kΩ 8-bit | R-DNL | -1 | 0.25 | 1 | LSb | 10 kΩ 8-bit 3.0V (Note 7) | 8 |
| Capacitance (PA) | CAW | | 75 | | pF | f =1 MHz, Code = Full-Scale | 8 |
| Capacitance (PW) | CW | | 120 | | pF | f =1 MHz, Code = Full-Scale | 8 |
| Capacitance (PB) | CBW | | 75 | | pF | f =1 MHz, Code = Full-Scale | 8 |
| Schmitt Trigger High Input Threshold | VIH | 0.45 | | | V | 2.7V ≤ VDD ≤ 5.5V; min is 0.45 VDD | 9 |
| Schmitt Trigger High Input Threshold | VIH | 0.5 | | | V | 1.8V ≤ VDD ≤ 2.7V; min is 0.5 VDD | 9 |
| Schmitt Trigger Low Input Threshold | VIL | | | 0.2 | V | max is 0.2VDD | 9 |
| High Voltage Limit | VMAX | | | 12.5 | V | Pin can tolerate VMAX or less. | 9 |
| Output Low Voltage (SDO) | VOL | 0 | | 0.3 | V | IOL = 5 mA, VDD = 5.5V; max is 0.3VDD | 9 |
| Output High Voltage (SDO) | VOH | 0.7 | | | V | IOH = -2.5 mA, VDD = 5.5V; min is 0.7VDD | 9 |
| Weak Pull-up/Pull-down Current | IPU | | | 1.75 | mA | Internal VDD pull-up, VIHH pull-down, VDD = 5.5V, VCS = 12.5V | 9 |
| CS Pull-up/Pull-down Resistance | RCS | | 16 | | kΩ | VDD = 5.5V, VCS = 3V | 9 |
| Input Leakage Current | IIL | -1 | | 1 | µA | VIN = VDD and VIN = VSS | 9 |
| Pin Capacitance | CIN, COUT | | 10 | | pF | fC = 20 MHz | 9 |
| Power Supply Sensitivity 8-bit | PSS | | 0.0015 | 0.0035 | %/% | VDD = 2.7V to 5.5V, VA = 2.7V, Code = 80h (MCP41X2/MCP42X2 only) | 10 |
| SCK Input Frequency | FSCK | | | 10 | MHz | VDD = 2.7V to 5.5V | 11 |
| SCK Input Frequency | FSCK | | | 1 | MHz | VDD = 1.8V to 2.7V | 11 |
| CS Active to SCK↑ | TcsA2scH | 60 | | | ns | | 11 |
| SCK input high time | TscH | 45 | | | ns | VDD = 2.7V to 5.5V | 11 |
| SCK input low time | TscL | 45 | | | ns | VDD = 2.7V to 5.5V | 11 |
| Setup time of SDI to SCK↑ | TDIV2scH | 10 | | | ns | | 11 |
| Hold time of SDI from SCK↑ | TscH2DIL | 20 | | | ns | | 11 |
| SDO data output valid after SCK↓ | TscL2DOV | | | 70 | ns | VDD = 2.7V to 5.5V | 11 |
| Voltage on VDD with respect to VSS | VDD | -0.6 | | 7 | V | | 3 |
| Voltage on CS, SCK, SDI, SDI/SDO, SHDN with respect to VSS | | -0.6 | | 12.5 | V | | 3 |
| Maximum current into PXA, PXW & PXB pins | | -2.5 | | 2.5 | mA | | 3 |
| Storage temperature | | -65 | | 150 | °C | | 3 |
| Ambient temperature with power applied | | -40 | | 125 | °C | | 3 |
| Maximum Junction Temperature | TJ | | | 150 | °C | | 3 |
| Operating Temperature Range | TA | -40 | | 125 | °C | | 14 |
| Thermal Resistance, 8L-SOIC | θJA | | 149.5 | | °C/W | | 14 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | | tin | P = Plastic Dual In-line (PDIP) (300 mil), 8/14-lead SN = Plastic Small Outline (SOIC), (150 mil), 8-lead | 85 |
## CAD (KiCad official)
- Symbol: `MCP4151T-103E`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `mcp4151t-103e-etched.step` / `mcp4151t-103e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mcp4151t-103e.step` / `mcp4151t-103e.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](docs/mcp4151t-103e-datasheet.pdf) (88 pp, sha256 `6c60b083b2ef0a92`, retrieved 2026-10-31, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/mcp4151t-103e-datasheet.pdf)