MCP4641-502E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4641 is a dual-channel, 128-step, 5 kOhm I2C digital potentiometer with non-volatile EEPROM, 2 kHz bandwidth, and 1.8 V to 5.5 V supply in a compact TSSOP-14 package. From $1.10 in stock worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4641-502E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9390(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 independent 128-step wipers sharing a single I2C bus address, halving component count versus two discrete digital potentiometers in stereo or differential signal-conditioning designs
- Non-volatile EEPROM stores both wiper positions through power cycles with 100,000 write-cycle endurance, eliminating host MCU re-initialization at every power-on
- 2 kHz bandwidth at 5 kOhm end-to-end resistance supports audio and sensor-conditioning applications from 1.8 V to 5.5 V supply without external op-amp buffering
Applications
The MCP4641 suits stereo audio volume controls, dual-axis LCD contrast adjustments, and two-channel sensor offset trimming where both 5 kOhm wipers must be set independently over I2C from a single microcontroller bus. Its non-volatile EEPROM ensures that calibration values programmed at the factory persist through power cycling, making it a reliable choice for white-goods appliances and industrial field instruments requiring factory-trim and field-update workflows. Compact TSSOP-14 form factor and 1.8 V to 5.5 V range also serve low-power portable medical devices and wearable biosensor front ends.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 8 |
| Additional Feature | NON-VOLATILE MEMORY |
| Bandwidth-Nom | 2kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Number of Positions | 129 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| 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 | GULL WING |
| Terminal Pitch | 0.65mm |
| 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 | Philippines, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many independent wiper channels does the MCP4641 provide, and how are they controlled over the I2C bus?
The MCP4641 integrates 2 independent wiper channels, each with 128 steps across a 5 kOhm end-to-end resistance, controlled via standard I2C at up to 400 kHz (Fast mode), using distinct register addresses for each wiper so a single MCU can update both channels in under 10 µs without multiplexing or chip-select logic.
Does the MCP4641 retain its wiper position after power is removed, and what is the write endurance of its memory?
Both wiper positions are stored in on-chip EEPROM with at least 100,000 erase/write cycles and a data retention lifetime exceeding 200 years at 25°C, so the last calibrated 5 kOhm setting for each channel is restored instantly at power-on without any I2C re-initialization from the host microcontroller.
What signal bandwidth does the MCP4641 support, and is it fast enough for audio frequency trimming applications?
The MCP4641 specifies a typical -3 dB bandwidth of 2 kHz at the full 5 kOhm end-to-end resistance, which covers the 20 Hz to 2 kHz vocal band for volume-control applications and allows accurate gain trimming in op-amp circuits with feedback poles set above 500 Hz.
How does the TSSOP-14 package size of MCP4641-502E/ST compare to using two discrete SOIC-8 single-channel potentiometers?
The TSSOP-14 package measures 5 mm x 4.4 mm (22 mm²), while two SOIC-8 devices would occupy approximately 2 x 19 mm² = 38 mm² plus routing clearance, so the dual-channel MCP4641 saves over 40% board area and reduces solder joints from 16 to 14 pins in a stereo or differential-control PCB layout.
Which supply voltage systems are compatible with the MCP4641, and can it coexist with 3.3 V I2C MCUs and 5 V analog signal rails?
The MCP4641 accepts VDD from 1.8 V to 5.5 V, so it operates natively with 3.3 V ARM Cortex-M or PIC32 I2C buses while the resistor network signal terminals can swing from VSS to VDD, permitting a 0 V to 3.3 V analog range on a 3.3 V system or a 0 V to 5 V range when VDD is 5 V, with no level shifter needed.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.4000 | $1.40 |
| 100+ | $1.0600 | $106.00 |
| 1000+ | $1.0200 | $1020.00 |
| 5000+ | $1.0100 | $5050.00 |
| 5088+ | $0.9480 | $4823.42 |
| 7584+ | $0.9390 | $7121.38 |
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