MCP4641-104E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4641-104E/ST is a dual-channel 7-bit digital potentiometer with 100 kΩ end-to-end resistance, 128 steps, non-volatile memory, and increment/decrement interface, packaged in a 14-pin TSSOP for adjustable bias and gain control.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4641-104E/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
What are the key features of MCP4641-104E/ST?
- Dual-channel 7-bit digital potentiometer with 100 kΩ end-to-end resistance and 128 steps providing high-impedance programmable resistance for bias and gain adjustment
- Non-volatile EEPROM wiper storage preserving the programmed position through power cycles without requiring microcontroller re-initialization
- Increment/decrement push-button compatible interface enabling direct control from discrete switches or GPIO lines without an I2C or SPI bus
- TSSOP-14 package with 0.1 kHz bandwidth suited for DC and sub-audio frequency programmable resistance in low-noise analog circuits
What is MCP4641-104E/ST used for?
The MCP4641-104E/ST suits high-impedance programmable bias networks, adjustable reference voltage dividers, and dual-channel gain control stages in industrial instrumentation and audio equipment. Its non-volatile memory and increment/decrement interface make it practical for panel-mounted controls in consumer electronics where users set a volume or brightness level that must persist after power-off. The TSSOP-14 package allows compact PCB integration alongside precision op-amps and ADCs in mixed-signal measurement boards.
What are the specifications of MCP4641-104E/ST?
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 8 |
| Additional Feature | NON-VOLATILE MEMORY |
| 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 | 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 | 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 | Philippines, Thailand |
Where can I find the MCP4641-104E/ST datasheet?
MCP4641-104E/ST Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4641-104E/ST?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the end-to-end resistance of MCP4641-104E/ST and how does the 128-step resolution translate to a wiper step size?
The MCP4641-104E/ST has a 100 kΩ end-to-end resistance divided into 128 steps, giving a nominal step size of approximately 781 Ω per increment, suitable for high-impedance voltage divider networks, adjustable bias resistors, and precision reference scaling circuits.
How does the increment/decrement interface of MCP4641-104E/ST differ from I2C-based digital potentiometers and when is it advantageous?
The MCP4641-104E/ST uses an up/down increment/decrement interface driven by simple GPIO pulses rather than a serial I2C or SPI protocol, which simplifies firmware, eliminates bus address conflicts, and allows direct connection to momentary push-buttons for manual wiper adjustment without a microcontroller.
Does the MCP4641-104E/ST retain its wiper position if the board loses power unexpectedly?
Yes, the MCP4641-104E/ST stores both wiper positions in on-chip non-volatile EEPROM rated for at least 100 000 write cycles and 200-year data retention, so a sudden power loss or brownout event does not reset the resistance back to mid-scale or default, preserving calibration and user settings.
For a dual-channel LCD contrast and backlight brightness control, how does MCP4641-104E/ST simplify the design compared to two separate single-channel devices?
By integrating 2 independent potentiometer channels with separate wipers in one TSSOP-14 package, the MCP4641-104E/ST halves the IC count, reduces the PCB area, and shares a single power supply decoupling network, compared to using two single-channel devices such as MCP4011, while still providing independent 128-step control over each channel from 0 Ω to 100 kΩ.
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More from Microchip
| 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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