MCP4361-103E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
The Microchip MCP4361-103E/ST is a quad 8-bit digital potentiometer with 10 kΩ end-to-end resistance, SPI 3-wire serial interface, and non-volatile memory in a 20-pin TSSOP package. It integrates four independent 256-step wipers controllable over SPI. Ideal for audio gain, LCD contrast, sensor calibration, and programmable filter designs.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MCP4361-103E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.8100(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 MCP4361-103E/ST?
- Four independent 8-bit (256-step) digital potentiometers in one package
- 10 kΩ end-to-end resistance with SPI 3-wire serial control
- Non-volatile wiper position memory for power-cycle retention
- 1 kHz bandwidth for audio and low-frequency signal conditioning
- 20-pin TSSOP package for compact multi-channel designs
- Single-supply operation with wide voltage range compatibility
What is MCP4361-103E/ST used for?
The MCP4361-103E/ST enables software-controlled gain and offset adjustment in audio amplifiers, LCD bias generators, and analog sensor conditioning circuits where four independent channels are needed on a single chip. Its non-volatile memory ensures wiper positions are retained after power cycling, removing the need for a microcontroller calibration routine on every startup. The SPI interface allows daisy-chaining multiple devices for high-channel-count potentiometer networks on a shared bus.
What are the specifications of MCP4361-103E/ST?
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-20 |
| Factory Lead Time | 9Weeks |
| YTEOL | 7 |
| Bandwidth-Nom | 1kHz |
| Control Interface | 3-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| Number of Functions | 4 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.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 |
Where can I find the MCP4361-103E/ST datasheet?
MCP4361-103E/ST Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4361-103E/ST?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many independent potentiometer channels does the MCP4361-103E/ST integrate, and what resistance does each channel offer?
The MCP4361-103E/ST integrates 4 independent digital potentiometers, each with an end-to-end resistance of 10 kΩ and 256 steps (8-bit resolution), giving approximately 39 Ω per step. Having 4 channels in a single 20-pin TSSOP reduces the board area compared to using four discrete devices, which is beneficial in space-constrained audio or instrumentation PCBs.
Does the MCP4361-103E/ST retain its wiper settings after power loss, and how is this achieved?
Yes. The device stores wiper positions in on-chip non-volatile memory (EEPROM), so all 4 channels restore their last programmed resistance values automatically after power cycling. This eliminates the need for the host microcontroller to re-initialize potentiometer settings on every boot, which simplifies firmware and reduces startup latency in applications such as programmable filters and audio equalizers.
How does the SPI interface of the MCP4361-103E/ST allow control of multiple devices on a shared bus?
The MCP4361-103E/ST uses a standard 3-wire SPI interface that supports daisy-chaining, so multiple devices can share the same MOSI, MISO, and SCK lines with individual chip-select pins. Each device accepts 16-bit command frames at SPI clock rates compatible with most microcontrollers, enabling a single MCU to independently address all 4 wipers on each device plus additional devices on the bus without any extra logic.
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| 1+ | $2.4900 | $2.49 |
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