MCP4231-502E/SL Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP4231-502E/SL is a dual-channel SPI digital potentiometer from Microchip with 128 wiper positions and a 5kΩ end-to-end resistance, controlled via an increment/decrement interface. It integrates volatile wiper position memory and operates from a single supply in a compact 14-pin SOIC package with 2kHz bandwidth. Available from authorized distributors with worldwide shipping and full RoHS compliance.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4231-502E/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
Key Features
- Dual-gang 128-step digital potentiometer with 5kΩ resistance for precision analog control
- SPI-compatible increment/decrement interface enables simple microcontroller integration without complex programming
- 2kHz bandwidth supports audio-frequency signal conditioning and low-frequency analog adjustment applications
- 14-pin SOIC surface-mount package with RoHS-compliant construction for automated PCB assembly
Applications
The MCP4231-502E/SL is well-suited for applications requiring digitally adjustable resistance such as programmable gain amplifiers, LCD display contrast control, audio volume control, and sensor signal conditioning circuits. Its dual-channel architecture allows simultaneous independent adjustment of two resistance values, making it ideal for stereo audio systems and differential signal processing. It is also widely used in calibration circuits, feedback network adjustment, and any embedded design requiring microcontroller-driven analog trimming without mechanical potentiometers.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 2kHz |
| 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 | 5000Ω |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many wiper positions does the MCP4231-502E/SL support and what resistance does it provide?
The MCP4231-502E/SL offers 128 wiper positions with a 5kΩ (502) end-to-end resistance, giving a step size of approximately 39Ω per step. This resolution provides smooth and precise analog resistance adjustment suitable for gain control, voltage dividers, and bias adjustment circuits in embedded systems.
What interface does the MCP4231-502E/SL use for control?
The MCP4231-502E/SL uses an SPI-compatible increment/decrement (Up/Down) serial interface, which allows a microcontroller to adjust the wiper position using simple digital pulses or SPI register writes. This makes integration straightforward without requiring dedicated SPI master hardware in all cases.
Does the MCP4231-502E/SL retain its wiper position after power loss?
The MCP4231-502E/SL uses volatile wiper storage, meaning the wiper position is reset to a midscale default upon power-up and is not retained after power loss. For non-volatile wiper retention, Microchip offers alternative variants such as the MCP4261 series which include EEPROM-backed wiper memory.
What package and supply voltage does the MCP4231-502E/SL use?
The MCP4231-502E/SL is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) surface-mount package, suitable for high-density PCB designs and automated assembly. It operates over a wide supply voltage range, typically 1.8V to 5.5V, making it compatible with both 3.3V and 5V microcontroller platforms.
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| 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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