MCP4641T-502E/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
Microchip MCP4641T-502E/ML is a dual-channel 5 kΩ digital potentiometer with 129 wiper positions and non-volatile memory, controlled via I2C interface. It operates from 2.7 V to 5.5 V and is housed in a compact 16-pin QFN package for precise resistance control in calibration and signal conditioning circuits.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- MCP4641T-502E/ML Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9560(MOQ 10)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-channel 5 kΩ end-to-end resistance with 129 wiper positions
- Non-volatile memory retains wiper settings through power cycles
- I2C serial interface for easy microcontroller integration
- 2.7 V to 5.5 V wide supply voltage range
- 16-pin QFN package for space-efficient PCB designs
- 2 kHz bandwidth suitable for audio and signal conditioning
- Increment/Decrement control for fine resistance adjustment
Applications
MCP4641T-502E/ML is used in analog calibration circuits, sensor signal conditioning, and programmable gain amplifier stages where software-controlled resistance values must survive power loss thanks to non-volatile wiper storage. It is also employed in LCD bias adjustment, audio volume control, and industrial trimmer replacement applications requiring dual independent 5 kΩ channels from a single I2C-addressed component.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | VQFN-16 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Additional Feature | NON-VOLATILE MEMORY |
| Bandwidth-Nom | 2kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | S-PQCC-N16 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Number of Positions | 129 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC16,.16SQ,25 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5.5V |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.6mA |
| Supply Voltage-Nom | 2.7V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Total Resistance-Nom | 5000Ω |
| Package | Quad Flat No-Lead |
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 discrete resistance steps does MCP4641T-502E/ML provide across its 5 kΩ range?
MCP4641T-502E/ML offers 129 wiper positions across the 5 kΩ end-to-end resistance, yielding a step resolution of approximately 39 Ω per increment. This fine-grained control makes it well suited for precise voltage-divider and gain-setting networks where coarse 256-position devices may miss target values.
Does the non-volatile memory feature eliminate the need for MCU re-initialization on power-up?
Yes. The onboard non-volatile memory stores both wiper positions so that the last programmed 5 kΩ settings are automatically restored on power-up without any I2C transaction from the host MCU. This simplifies firmware for systems that set resistance once during manufacturing calibration.
What I2C address options are available, and how many MCP4641T-502E/ML devices can share one bus?
MCP4641T-502E/ML supports up to 8 selectable I2C addresses via address pins, allowing up to 8 devices on a single 400 kHz fast-mode I2C bus. This is practical for multi-channel calibration boards where many independent 5 kΩ potentiometers must be controlled from one MCU peripheral.
Is MCP4641T-502E/ML a suitable replacement for mechanical trimmer potentiometers in production PCBs?
Yes. Replacing a mechanical 5 kΩ trimmer with MCP4641T-502E/ML eliminates manual calibration steps on the production line, as the wiper can be set digitally via I2C and locked in non-volatile memory. The 16-pin QFN package also reduces solder joint failure risk compared to through-hole trimmer variants.
What bandwidth limitation should designers consider when using MCP4641T-502E/ML in audio or AC signal paths?
MCP4641T-502E/ML has a nominal bandwidth of 2 kHz, limiting its use to low-frequency audio, DC bias adjustment, and calibration applications. For signal paths above 2 kHz, designers should select a higher-bandwidth digital potentiometer or use the device only in DC-bias or gain-trim circuits outside the AC signal path.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $1.2550 | $12.55 |
| 25+ | $1.2350 | $30.88 |
| 100+ | $1.0600 | $106.00 |
| 1000+ | $1.0200 | $1020.00 |
| 2475+ | $0.9750 | $2413.13 |
| 3300+ | $0.9560 | $3154.80 |
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