MCP4641-103E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4641-103E/ST is a dual-channel 10 kΩ digital potentiometer with 129 taps, I2C interface, and non-volatile memory in a TSSOP-14 package. Supports increment/decrement control and retains wiper position through power cycles. Available with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4641-103E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3900(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-channel 10 kΩ digital potentiometer with 129 tap positions for precise resistance adjustment
- Non-volatile memory (NVM) stores wiper position through power cycles, eliminating initialization code
- I2C interface with increment/decrement commands allows easy integration with any microcontroller
- TSSOP-14 package provides a compact footprint for audio, gain, and calibration control circuits
Applications
The MCP4641-103E/ST is used in audio volume control, programmable gain amplifiers, and LCD backlight brightness adjustment where software-controlled resistance adjustment replaces mechanical potentiometers. Its non-volatile memory retains the last wiper position after power-off, making it ideal for user preference storage in consumer electronics and industrial calibration fixtures. Dual-channel architecture allows simultaneous control of two independent resistive elements in differential signal conditioning or dual-rail power supply trimming applications.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 8 |
| Additional Feature | NON-VOLATILE MEMORY |
| Bandwidth-Nom | 1kHz |
| 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 | 10000Ω |
| 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 tap positions does the MCP4641-103E/ST offer and what resolution does that provide for a 10 kΩ end-to-end resistance?
The MCP4641-103E/ST provides 129 tap positions across its 10 kΩ end-to-end resistance, yielding a step resolution of approximately 78 Ω per tap. This fine resolution is suitable for audio volume control, programmable gain settings, and precise analog trimming in signal conditioning circuits.
How does the non-volatile memory in MCP4641-103E/ST simplify firmware design?
The built-in non-volatile memory stores the current wiper position when a write command is issued, so the device restores its last resistance value at power-up without any firmware initialization sequence. This eliminates the need to restore potentiometer state after every power cycle in audio presets or calibration systems.
Which I2C address options does MCP4641-103E/ST support for multi-device systems?
The MCP4641-103E/ST supports hardware address selection through A0 and A1 pins, enabling up to 4 unique I2C addresses on a single bus. This allows designers to place 4 dual-channel devices on one I2C bus, controlling 8 independent 10 kΩ potentiometer channels from a single master without bus conflicts.
What bandwidth limitation should designers account for when using MCP4641-103E/ST in AC signal paths?
The MCP4641-103E/ST has a nominal bandwidth of 1 kHz, meaning signal attenuation increases above this frequency due to parasitic wiper capacitance. For audio applications operating within the 20 Hz to 1 kHz range this is acceptable, but high-frequency AC applications above 10 kHz should use a dedicated analog switch or a higher-bandwidth digital potentiometer instead.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3900 | $0.39 |
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