component
MCP4661-104E
Public Made by Adomby adom
Microchip Tech Digital Potentiometers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MCP4661-104E
Microchip Tech · Digital Potentiometers · TSSOP-14
MCP4661-104E 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 | HVC/A0 | input | High-voltage-tolerant (up to 12.5V) Schmitt-trigger input serving as I2C Address 0 (latched at POR/BOR) and as the High Voltage command pin when driven to VIHH. |
| 2 | SCL | input | I2C serial clock input from the host; the device is a slave so it accepts only external clock signals (high-voltage tolerant, Schmitt trigger). |
| 3 | SDA | bidirectional | I2C serial data input/output with an open-drain N-channel driver, connected to the host SDA (high-voltage tolerant, Schmitt trigger). |
| 4 | VSS | power_in | Device ground reference. |
| 5 | P1B | passive | Potentiometer 1 terminal B, the fixed Zero-Scale connection (wiper value 0x00); voltage must be between VSS and VDD. |
| 6 | P1W | passive | Potentiometer 1 wiper terminal, the adjustable terminal; voltage must be between VSS and VDD. |
| 7 | P1A | passive | Potentiometer 1 terminal A, the fixed Full-Scale connection (0x100 for 8-bit); voltage must be between VSS and VDD. |
| 8 | P0A | passive | Potentiometer 0 terminal A, the fixed Full-Scale connection (0x100 for 8-bit); voltage must be between VSS and VDD. |
| 9 | P0W | passive | Potentiometer 0 wiper terminal, the adjustable terminal; voltage must be between VSS and VDD. |
| 10 | P0B | passive | Potentiometer 0 terminal B, the fixed Zero-Scale connection (wiper value 0x00); voltage must be between VSS and VDD. |
| 11 | NC | unconnected | No connection; the datasheet says NC pins should be connected to either VDD or VSS. |
| 12 | A2 | input | I2C Address 2 input (high-voltage tolerant, Schmitt trigger) which with A1 and A0 allows up to eight devices on one I2C bus. |
| 13 | A1 | input | I2C Address 1 input (high-voltage tolerant, Schmitt trigger) which with A2 and A0 allows up to eight devices on one I2C bus. |
| 14 | VDD | power_in | Positive power supply input relative to VSS; specifications are guaranteed for 2.7V to 5.5V, with operation from 1.8V to 5.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TSSOP-14 |
| Category | ADC/DAC/Data Conversion |
| Pins | 14 |
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 | |
| VDD start voltage to ensure wiper reset | VBOR | 1.65 | V | RAM retention voltage (VRAM) < VBOR | 4 | ||
| Delay after device exits reset state | TBORD | 10 | 20 | µs | VDD > VBOR | 4 | |
| Supply current, active 3.4 MHz | IDD | 600 | µA | Serial Interface Active, write all 0's to Volatile Wiper 0, VDD = 5.5V, FSCL = 3.4 MHz | 4 | ||
| Supply current, active 100 kHz | IDD | 250 | µA | Serial Interface Active, write all 0's to Volatile Wiper 0, VDD = 5.5V, FSCL = 100 kHz | 4 | ||
| Supply current, serial interface inactive | IDD | 2.5 | 5 | µA | Serial Interface Inactive (Stop condition, SCL = SDA = VIH), Wiper = 0, VDD = 5.5V, HVC/A0 = VIH | 4 | |
| Nominal resistance RAB (-104) | RAB | 80 | 100 | 120 | kΩ | -104 devices (Note 1), ±20% | 5 |
| Resolution 8-bit | N | 257 | Taps | 8-bit No Missing Codes | 5 | ||
| Nominal resistance match | /RAB0-RAB1//RAB | 0.2 | 1.25 | % | MCP46X1 devices only | 5 | |
| 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 terminal W | IT | 2.5 | mA | Terminal W IAW or IBW, W = FS or ZS | 6 | ||
| Maximum current Terminal A and B (RAB(MIN)=80000) | IAB | 0.069 | mA | VB = 0V, VA = 5.5V, RAB(MIN) = 80000 | 6 | ||
| Leakage current into A, W or B | IWL | 100 | nA | MCP4XX1 PxA = PxW = PxB = VSS | 6 | ||
| Full-scale error 100k 8-bit | VWFSE | -0.5 | -0.1 | LSb | 100 k 8-bit 3.0V ≤ VDD ≤ 5.5V | 7 | |
| Zero-scale error 100k 8-bit | VWZSE | 0.1 | 0.5 | LSb | 100 k 8-bit 3.0V ≤ VDD ≤ 5.5V | 7 | |
| Potentiometer INL 8-bit | INL | -1 | 0.5 | 1 | LSb | 8-bit 3.0V ≤ VDD ≤ 5.5V, MCP4XX1 devices only (Note 2) | 7 |
| Potentiometer DNL 8-bit | DNL | -0.5 | 0.25 | 0.5 | LSb | 8-bit 3.0V ≤ VDD ≤ 5.5V, MCP4XX1 devices only (Note 2) | 7 |
| Bandwidth -3 dB, 100k 8-bit | BW | 100 | kHz | 100 k 8-bit Code = 80h, load = 30 pF | 8 | ||
| Rheostat INL 100k 8-bit | R-INL | -1 | 0.5 | 1 | LSb | 100 k 8-bit 5.5V, IW = 45 µA | 9 |
| Rheostat INL 100k 8-bit | R-INL | -1.5 | 0.25 | 1.5 | LSb | 100 k 8-bit 3.0V, IW = 24 µA (Note 7) | 9 |
| Rheostat DNL 100k 8-bit | R-DNL | -0.5 | 0.25 | 0.5 | LSb | 100 k 8-bit 5.5V, IW = 45 µA | 10 |
| Capacitance (PA) | CAW | 75 | pF | f =1 MHz, Code = Full-Scale | 10 | ||
| Capacitance (PW) | CW | 120 | pF | f =1 MHz, Code = Full-Scale | 10 | ||
| Capacitance (PB) | CBW | 75 | pF | f =1 MHz, Code = Full-Scale | 10 | ||
| Schmitt trigger high input threshold (all inputs except SDA, SCL) | VIH | 0.45 | V | 2.7V ≤ VDD ≤ 5.5V; min is 0.45 VDD | 11 | ||
| Schmitt trigger high input threshold (SDA, SCL) | VIH | 0.7 | 12.5 | V | min is 0.7 VDD; max is VMAX; 100 kHz to 3.4 MHz | 11 | |
| Schmitt trigger low input threshold (all inputs except SDA, SCL) | VIL | 0.2 | V | max is 0.2 VDD | 11 | ||
| Schmitt trigger low input threshold (SDA, SCL) | VIL | -0.5 | 0.3 | V | max is 0.3 VDD; 100 kHz to 3.4 MHz | 11 | |
| High voltage limit | VMAX | 12.5 | V | Pin can tolerate VMAX or less | 11 | ||
| Output low voltage (SDA) | VOL | 0 | 0.4 | V | VDD ≥ 2.0V, IOL = 3 mA | 12 | |
| Input leakage current | IIL | -1 | 1 | µA | VIN = VDD and VIN = VSS | 12 | |
| Pin capacitance | CIN, COUT | 10 | pF | fC = 3.4 MHz | 12 | ||
| Operating temperature range | TA | -40 | 125 | °C | 16 | ||
| Voltage on VDD with respect to VSS | VDD | -0.6 | 7 | V | 3 | ||
| Voltage on HVC/A0, A1, A2, SCL, SDA | -0.6 | 12.5 | V | with respect to VSS | 3 | ||
| Input clamp current | IIK | -20 | 20 | mA | VI < 0, VI > VDD, VI > VPP on HV pins | 3 | |
| Output clamp current | IOK | -20 | 20 | mA | VO < 0 or VO > VDD | 3 | |
| Maximum current into PxA, PxW, PxB pins | -2.5 | 2.5 | mA | 3 | |||
| Maximum current into VDD pin | 100 | mA | 3 | ||||
| Maximum current out of VSS pin | 100 | mA | 3 | ||||
| Storage temperature | -65 | 150 | °C | 3 | |||
| Ambient temperature with power applied | -40 | 125 | °C | 3 | |||
| Package power dissipation TSSOP-14 | 1 | W | TA = +50°C, TJ = +150°C | 3 | |||
| Maximum junction temperature | TJ | 150 | °C | 3 | |||
| Soldering temperature of leads | 300 | °C | 10 seconds | 3 |
CAD (KiCad official)
- Symbol:
MCP4661-104E - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
mcp4661-104e-etched.step/mcp4661-104e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mcp4661-104e.step/mcp4661-104e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (102 pp, sha256
ee77464c39584a73, retrieved 2026-10-30, 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).
# MCP4661-104E
**Microchip Tech** · Digital Potentiometers · TSSOP-14
MCP4661-104E 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 | HVC/A0 | input | High-voltage-tolerant (up to 12.5V) Schmitt-trigger input serving as I2C Address 0 (latched at POR/BOR) and as the High Voltage command pin when driven to VIHH. |
| 2 | SCL | input | I2C serial clock input from the host; the device is a slave so it accepts only external clock signals (high-voltage tolerant, Schmitt trigger). |
| 3 | SDA | bidirectional | I2C serial data input/output with an open-drain N-channel driver, connected to the host SDA (high-voltage tolerant, Schmitt trigger). |
| 4 | VSS | power_in | Device ground reference. |
| 5 | P1B | passive | Potentiometer 1 terminal B, the fixed Zero-Scale connection (wiper value 0x00); voltage must be between VSS and VDD. |
| 6 | P1W | passive | Potentiometer 1 wiper terminal, the adjustable terminal; voltage must be between VSS and VDD. |
| 7 | P1A | passive | Potentiometer 1 terminal A, the fixed Full-Scale connection (0x100 for 8-bit); voltage must be between VSS and VDD. |
| 8 | P0A | passive | Potentiometer 0 terminal A, the fixed Full-Scale connection (0x100 for 8-bit); voltage must be between VSS and VDD. |
| 9 | P0W | passive | Potentiometer 0 wiper terminal, the adjustable terminal; voltage must be between VSS and VDD. |
| 10 | P0B | passive | Potentiometer 0 terminal B, the fixed Zero-Scale connection (wiper value 0x00); voltage must be between VSS and VDD. |
| 11 | NC | unconnected | No connection; the datasheet says NC pins should be connected to either VDD or VSS. |
| 12 | A2 | input | I2C Address 2 input (high-voltage tolerant, Schmitt trigger) which with A1 and A0 allows up to eight devices on one I2C bus. |
| 13 | A1 | input | I2C Address 1 input (high-voltage tolerant, Schmitt trigger) which with A2 and A0 allows up to eight devices on one I2C bus. |
| 14 | VDD | power_in | Positive power supply input relative to VSS; specifications are guaranteed for 2.7V to 5.5V, with operation from 1.8V to 5.5V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TSSOP-14 |
| Category | ADC/DAC/Data Conversion |
| Pins | 14 |
## 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 |
| VDD start voltage to ensure wiper reset | VBOR | | | 1.65 | V | RAM retention voltage (VRAM) < VBOR | 4 |
| Delay after device exits reset state | TBORD | | 10 | 20 | µs | VDD > VBOR | 4 |
| Supply current, active 3.4 MHz | IDD | | | 600 | µA | Serial Interface Active, write all 0's to Volatile Wiper 0, VDD = 5.5V, FSCL = 3.4 MHz | 4 |
| Supply current, active 100 kHz | IDD | | | 250 | µA | Serial Interface Active, write all 0's to Volatile Wiper 0, VDD = 5.5V, FSCL = 100 kHz | 4 |
| Supply current, serial interface inactive | IDD | | 2.5 | 5 | µA | Serial Interface Inactive (Stop condition, SCL = SDA = VIH), Wiper = 0, VDD = 5.5V, HVC/A0 = VIH | 4 |
| Nominal resistance RAB (-104) | RAB | 80 | 100 | 120 | kΩ | -104 devices (Note 1), ±20% | 5 |
| Resolution 8-bit | N | | 257 | | Taps | 8-bit No Missing Codes | 5 |
| Nominal resistance match | /RAB0-RAB1//RAB | | 0.2 | 1.25 | % | MCP46X1 devices only | 5 |
| 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 terminal W | IT | | | 2.5 | mA | Terminal W IAW or IBW, W = FS or ZS | 6 |
| Maximum current Terminal A and B (RAB(MIN)=80000) | IAB | | | 0.069 | mA | VB = 0V, VA = 5.5V, RAB(MIN) = 80000 | 6 |
| Leakage current into A, W or B | IWL | | 100 | | nA | MCP4XX1 PxA = PxW = PxB = VSS | 6 |
| Full-scale error 100k 8-bit | VWFSE | -0.5 | -0.1 | | LSb | 100 k 8-bit 3.0V ≤ VDD ≤ 5.5V | 7 |
| Zero-scale error 100k 8-bit | VWZSE | | 0.1 | 0.5 | LSb | 100 k 8-bit 3.0V ≤ VDD ≤ 5.5V | 7 |
| Potentiometer INL 8-bit | INL | -1 | 0.5 | 1 | LSb | 8-bit 3.0V ≤ VDD ≤ 5.5V, MCP4XX1 devices only (Note 2) | 7 |
| Potentiometer DNL 8-bit | DNL | -0.5 | 0.25 | 0.5 | LSb | 8-bit 3.0V ≤ VDD ≤ 5.5V, MCP4XX1 devices only (Note 2) | 7 |
| Bandwidth -3 dB, 100k 8-bit | BW | | 100 | | kHz | 100 k 8-bit Code = 80h, load = 30 pF | 8 |
| Rheostat INL 100k 8-bit | R-INL | -1 | 0.5 | 1 | LSb | 100 k 8-bit 5.5V, IW = 45 µA | 9 |
| Rheostat INL 100k 8-bit | R-INL | -1.5 | 0.25 | 1.5 | LSb | 100 k 8-bit 3.0V, IW = 24 µA (Note 7) | 9 |
| Rheostat DNL 100k 8-bit | R-DNL | -0.5 | 0.25 | 0.5 | LSb | 100 k 8-bit 5.5V, IW = 45 µA | 10 |
| Capacitance (PA) | CAW | | 75 | | pF | f =1 MHz, Code = Full-Scale | 10 |
| Capacitance (PW) | CW | | 120 | | pF | f =1 MHz, Code = Full-Scale | 10 |
| Capacitance (PB) | CBW | | 75 | | pF | f =1 MHz, Code = Full-Scale | 10 |
| Schmitt trigger high input threshold (all inputs except SDA, SCL) | VIH | 0.45 | | | V | 2.7V ≤ VDD ≤ 5.5V; min is 0.45 VDD | 11 |
| Schmitt trigger high input threshold (SDA, SCL) | VIH | 0.7 | | 12.5 | V | min is 0.7 VDD; max is VMAX; 100 kHz to 3.4 MHz | 11 |
| Schmitt trigger low input threshold (all inputs except SDA, SCL) | VIL | | | 0.2 | V | max is 0.2 VDD | 11 |
| Schmitt trigger low input threshold (SDA, SCL) | VIL | -0.5 | | 0.3 | V | max is 0.3 VDD; 100 kHz to 3.4 MHz | 11 |
| High voltage limit | VMAX | | | 12.5 | V | Pin can tolerate VMAX or less | 11 |
| Output low voltage (SDA) | VOL | 0 | | 0.4 | V | VDD ≥ 2.0V, IOL = 3 mA | 12 |
| Input leakage current | IIL | -1 | | 1 | µA | VIN = VDD and VIN = VSS | 12 |
| Pin capacitance | CIN, COUT | | 10 | | pF | fC = 3.4 MHz | 12 |
| Operating temperature range | TA | -40 | | 125 | °C | | 16 |
| Voltage on VDD with respect to VSS | VDD | -0.6 | | 7 | V | | 3 |
| Voltage on HVC/A0, A1, A2, SCL, SDA | | -0.6 | | 12.5 | V | with respect to VSS | 3 |
| Input clamp current | IIK | -20 | | 20 | mA | VI < 0, VI > VDD, VI > VPP on HV pins | 3 |
| Output clamp current | IOK | -20 | | 20 | mA | VO < 0 or VO > VDD | 3 |
| Maximum current into PxA, PxW, PxB pins | | -2.5 | | 2.5 | mA | | 3 |
| Maximum current into VDD pin | | | | 100 | mA | | 3 |
| Maximum current out of VSS pin | | | | 100 | mA | | 3 |
| Storage temperature | | -65 | | 150 | °C | | 3 |
| Ambient temperature with power applied | | -40 | | 125 | °C | | 3 |
| Package power dissipation TSSOP-14 | | | | 1 | W | TA = +50°C, TJ = +150°C | 3 |
| Maximum junction temperature | TJ | | | 150 | °C | | 3 |
| Soldering temperature of leads | | | | 300 | °C | 10 seconds | 3 |
## CAD (KiCad official)
- Symbol: `MCP4661-104E`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `mcp4661-104e-etched.step` / `mcp4661-104e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mcp4661-104e.step` / `mcp4661-104e.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](docs/mcp4661-104e-datasheet.pdf) (102 pp, sha256 `ee77464c39584a73`, retrieved 2026-10-30, 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/mcp4661-104e-datasheet.pdf)