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MCP4661-103E

Public Made by Adom

by adom

Microchip Tech Digital Potentiometers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MCP4661-103E

Microchip Tech · Digital Potentiometers · TSSOP-14

MCP4661-103E 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 HVC/A0 input Address 0 input for the I2C interface and High Voltage Command pin; A0 is latched at POR/BOR, and a VIHH voltage on this pin selects a High Voltage command.
2 SCL input I2C serial clock input; the device is a slave and accepts only external clock signals on this pin.
3 SDA bidirectional I2C serial data I/O implemented as an open-drain N-channel driver.
4 VSS power_in Device ground reference, which the datasheet states must be the reference for VDD and all terminal voltages.
5 P1B passive Potentiometer 1 terminal B; the voltage on this terminal must be between VSS and VDD and it can carry positive or negative current.
6 P1W passive Potentiometer 1 wiper terminal; the voltage on this terminal must be between VSS and VDD and it can carry positive or negative current.
7 P1A passive Potentiometer 1 terminal A (full-scale wiper connection); the voltage on this terminal must be between VSS and VDD and it can carry positive or negative current.
8 P0A passive Potentiometer 0 terminal A (full-scale wiper connection); the voltage on this terminal must be between VSS and VDD and it can carry positive or negative current.
9 P0W passive Potentiometer 0 wiper terminal; the voltage on this terminal must be between VSS and VDD and it can carry positive or negative current.
10 P0B passive Potentiometer 0 terminal B (zero-scale connection); the voltage on this terminal must be between VSS and VDD and it can carry positive or negative current.
11 WP input Hardware EEPROM write protect input that forces the nonvolatile memory to be write protected.
12 A2 input I2C interface Address 2 input which, together with A1 and A0, lets up to eight devices share one I2C bus.
13 A1 input I2C interface Address 1 input which, together with A2 and A0, lets up to eight devices share one I2C bus.
14 VDD power_in Positive power supply input referenced to VSS; device characteristics are specified from 2.7V to 5.5V, and performance may not meet the data sheet specifications while VDD is below 2.7V.

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
HVC pin voltage range (upper limit) VHV 12.5 V VDD ≥ 4.5V 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 Delay after device exits the reset state (VDD > VBOR) 4
Supply current (serial interface active, 3.4 MHz) IDD 600 µA Serial interface active, HVC/A0 = VIH (or VIL); write all 0's to volatile wiper 0; VDD = 5.5V, FSCL = 3.4 MHz 4
Supply current (serial interface active, 100 kHz) IDD 250 µA Serial interface active, HVC/A0 = VIH (or VIL); write all 0's to volatile wiper 0; VDD = 5.5V, FSCL = 100 kHz 4
EE write current (write cycle, nonvolatile device) 575 µA EE write cycle, VDD = 5.5V, FSCL = 400 kHz, write all 0's to nonvolatile wiper 0, SCL = VIL or VIH 4
Serial interface inactive current 2.5 5 µA Stop condition, SCL = SDA = VIH, wiper = 0; VDD = 5.5V, HVC/A0 = VIH 4
Nominal resistance RAB (-103 device) RAB 8 10 12 kΩ Resistance (±20%), -103 devices (Note 1) 5
Resistance tolerance (-103 device) RAB -20 20 % Resistance (±20%), -103 devices 5
Nominal resistance match (MCP46X1) /RAB0 - RAB1/ / RAB 0.2 1.25 % MCP46X1 devices only 5
Wiper resistance (5.5V) RW 75 160 Ω VDD = 5.5 V, IW = 2.0 mA, code = 00h 5
Wiper resistance (2.7V) RW 75 300 Ω VDD = 2.7 V, IW = 2.0 mA, code = 00h 5
Input high threshold (all inputs except SDA and SCL) VIH 0.45 ×VDD 2.7V ≤ VDD ≤ 5.5V 11
Input high threshold (all inputs except SDA and SCL, low VDD) VIH 0.5 ×VDD 1.8V ≤ VDD ≤ 2.7V 11
Input high threshold (SDA and SCL) VIH 0.7 ×VDD SDA and SCL, 100 kHz 11
Input low threshold (all inputs except SDA and SCL) VIL 0.2 ×VDD All inputs except SDA and SCL 11
Input low threshold (SDA and SCL) VIL -0.5 0.3 ×VDD SDA and SCL, 100 kHz 11
High-voltage input entry voltage (WiperLock) VIHHEN 8.5 12.5 V Threshold for WiperLock Technology 11
High-voltage limit VMAX 12.5 V Pin can tolerate VMAX or less 11
Output low voltage (SDA) VOL 0.2 ×VDD VDD < 2.0V, IOL = 1 mA 12
Output low voltage (SDA) VOL 0.4 V VDD ≥ 2.0V, IOL = 3 mA 12
Weak pull-up / pull-down current IPU 1.75 mA Internal VDD pull-up, VIHH pull-down; VDD = 5.5V, VIHH = 12.5V 12
Input leakage current IIL -1 1 µA VIN = VDD and VIN = VSS 12
EEPROM programming write cycle time tWC 5 10 ms 12
Maximum current through terminal A IT 2.5 mA Terminal A IAW, W = Full-Scale (FS) 6
Maximum current through terminal B IT 2.5 mA Terminal B IBW, W = Zero Scale (ZS) 6
Maximum current through terminal W IT 2.5 mA Terminal W IAW or IBW, W = FS or ZS 6
Maximum current terminal A to terminal B (RAB(MIN) = 8000) IAB 0.688 mA IAB, VB = 0V, VA = 5.5V, RAB(MIN) = 8000 6
Full-scale error (MCP4XX1 only) VWFSE -3.5 -0.1 LSb 10 k, 8-bit (code 100h), 3.0V ≤ VDD ≤ 5.5V 7
Zero-scale error (MCP4XX1 only) VWZSE 0.1 3.5 LSb 10 k, 8-bit (code 00h), 3.0V ≤ VDD ≤ 5.5V 7
Potentiometer integral non-linearity (MCP4XX1 only) INL -1 0.5 1 LSb 8-bit, 3.0V ≤ VDD ≤ 5.5V 7
Potentiometer differential non-linearity (MCP4XX1 only) DNL -0.5 0.25 0.5 LSb 8-bit, 3.0V ≤ VDD ≤ 5.5V 7
Rheostat integral non-linearity (10 k, 5.5V) R-INL -1.5 0.5 1.5 LSb 10 k, 8-bit, 5.5V, IW = 450 µA 9
Rheostat integral non-linearity (10 k, 3.0V) R-INL -5.5 2.5 5.5 LSb 10 k, 8-bit, 3.0V, IW = 240 µA (Note 7) 9
Rheostat differential non-linearity (10 k, 5.5V) R-DNL -0.5 0.25 0.5 LSb 10 k, 8-bit, 5.5V, IW = 450 µA 10
Rheostat differential non-linearity (10 k, 3.0V) R-DNL -1 0.25 1 LSb 10 k, 8-bit, 3.0V, IW = 240 µA (Note 7) 10
I2C clock frequency, standard mode FSCL 0 100 kHz Standard mode; Cb = 400 pF, 1.8V-5.5V 13
I2C clock frequency, fast mode FSCL 0 400 kHz Fast mode; Cb = 400 pF, 2.7V-5.5V 13
I2C clock frequency, high-speed 1.7 FSCL 0 1.7 MHz High-Speed 1.7; Cb = 400 pF, 4.5V-5.5V 13
I2C clock frequency, high-speed 3.4 FSCL 0 3.4 MHz High-Speed 3.4; Cb = 100 pF, 4.5V-5.5V 13
Bus capacitive loading Cb 400 pF 100 kHz mode 13
Voltage on VDD with respect to VSS VDD -0.6 7 V 3
Voltage on HVC/A0, A1, A2, SCL, SDA and WP with respect to VSS -0.6 12.5 V 3
Voltage on all other pins (PxA, PxW, PxB) with respect to VSS (printed max VDD + 0.3V) -0.3 V 3
Ambient temperature with power applied TA -40 125 °C With power applied 3
Storage temperature TSTG -65 150 °C 3
Maximum junction temperature TJ 150 °C 3
Operating temperature range (extended) TA -40 125 °C 17
Package power dissipation (TSSOP-14) 1 W TA = +50°C, TJ = +150°C 3
Nominal resistance tempco RAB/T 50 ppm/°C TA = -20°C to +70°C 5
Nominal resistance tempco RAB/T 100 ppm/°C TA = -40°C to +85°C 5
Nominal resistance tempco RAB/T 150 ppm/°C TA = -40°C to +125°C 5
Ratiometric tempco VWB/T 15 ppm/°C Code = Mid-scale (80h or 40h) 5

CAD (KiCad official)

  • Symbol: MCP4661-103E
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: mcp4661-103e-etched.step / mcp4661-103e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mcp4661-103e.step / mcp4661-103e.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip Tech datasheet (102 pp, sha256 ad484e84f5bc6a00, retrieved 2026-10-29, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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