MCP4231-104E/SL Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4231-104E/SL is a dual-channel SPI digital potentiometer with 128 wiper positions, 100 kΩ end-to-end resistance, and non-volatile wiper memory in a 14-pin SOIC package. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4231-104E/SL Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7980(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP4231-104E/SL?
- Dual independent 100 kΩ digital potentiometers with 128 wiper positions each for fine 781 Ω per step resolution
- Non-volatile EEPROM wiper position storage retains last setting through power cycles without MCU intervention
- SPI-compatible interface operating up to 10 MHz enables fast wiper updates from any microcontroller
- 2.7 V to 5.5 V supply range and –40°C to +125°C temperature range suit industrial and automotive designs
What is MCP4231-104E/SL used for?
The MCP4231-104E/SL is used to digitally adjust gain in programmable-gain amplifier stages, trim DC offset in sensor signal chains, and replace mechanical trimpots in audio volume controls and LCD contrast circuits. Its SPI interface lets a microcontroller update both potentiometer channels in a single transaction, which is valuable in automatic calibration routines for test equipment. Non-volatile wiper storage ensures the device powers up with the last programmed position, eliminating reset sequencing in industrial field devices.
What are the specifications of MCP4231-104E/SL?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.1kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5V |
| Supply Current-Max | 1mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Total Resistance-Nom | 100000Ω |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP4231-104E/SL datasheet?
MCP4231-104E/SL Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4231-104E/SL?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many wiper positions does each channel of the MCP4231-104E/SL provide, and what is the resulting step resolution?
Each channel of the MCP4231-104E/SL provides 128 wiper positions across a 100 kΩ end-to-end resistance, giving a resolution of approximately 781 Ω per step. This allows fine digital adjustment of gain, offset, or reference voltage in sensor conditioning and audio circuits with minimal discrete resistor count.
Does the MCP4231-104E/SL retain its wiper position after power is removed?
Yes. The MCP4231-104E/SL includes non-volatile EEPROM storage that retains the programmed wiper position through power-off events. With 100 000 write cycle endurance and greater than 40-year data retention, the device suits field-deployed instruments that must power up with a previously calibrated setting without requiring a host microcontroller initialization sequence.
Which SPI clock speed does the MCP4231-104E/SL support, and how does that affect update latency in a control loop?
The MCP4231-104E/SL supports SPI clock frequencies up to 10 MHz. A single 16-bit SPI transaction takes as little as 1.6 µs at 10 MHz, which is fast enough to update the wiper position within a 10 kHz control loop without adding meaningful latency.
How does MCP4231-104E/SL differ from MCP4131-104E/SL, and which should be chosen for a stereo volume control?
The MCP4231-104E/SL contains 2 independent potentiometer channels in the same 14-pin SOIC package, while the MCP4131-104E/SL has only 1 channel in a 8-pin package. For a stereo volume control, the MCP4231 is the better choice because both left and right channels are updated over the same SPI bus with a common chip-select, cutting BOM count and PCB area by roughly 40% compared to using two MCP4131 devices.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2000 | $1.20 |
| 100+ | $0.8900 | $89.00 |
| 1000+ | $0.8700 | $870.00 |
| 5000+ | $0.8500 | $4250.00 |
| 5016+ | $0.8000 | $4012.80 |
| 7524+ | $0.7980 | $6004.15 |
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