MCP4342-503E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4342-503E/ST is a quad-channel 50 kΩ digital potentiometer with 128 wiper positions per channel controlled via a 3-wire SPI serial interface. It provides non-volatile wiper memory to retain settings after power-down. Housed in a 14-pin TSSOP package for compact analog tuning applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4342-503E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.2300(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 MCP4342-503E/ST?
- Quad-channel digital potentiometer with 4 independent wipers
- 50 kΩ end-to-end resistance with 128 wiper steps
- SPI 3-wire serial interface for microcontroller control
- Non-volatile wiper position memory
- 200 Hz bandwidth suitable for low-frequency tuning
- 14-pin TSSOP package
- RoHS compliant
What is MCP4342-503E/ST used for?
The MCP4342-503E/ST is used in precision analog gain adjustment, offset calibration, and voltage divider control circuits where digital programmability replaces manual trimmer potentiometers. Its quad-channel design allows simultaneous adjustment of 4 independent signal paths from a single SPI bus, making it efficient for multi-channel audio equalizers and instrumentation calibration boards. The non-volatile wiper memory ensures the last programmed position is retained across power cycles without requiring microcontroller re-initialization.
What are the specifications of MCP4342-503E/ST?
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.2kHz |
| Control Interface | 3-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 4 |
| 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 | 50000Ω |
| 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 | Malaysia, Philippines, Thailand |
Where can I find the MCP4342-503E/ST datasheet?
MCP4342-503E/ST Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4342-503E/ST?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many wiper positions does the MCP4342-503E/ST offer and what resistance range does each step represent?
The MCP4342-503E/ST provides 128 wiper positions over a 50 kΩ end-to-end resistance, giving each step a resolution of approximately 390 Ω. This fine resolution enables precise analog gain and offset adjustments in signal conditioning circuits with minimal quantization error.
Does the MCP4342-503E/ST retain its wiper settings after power is removed?
Yes, the MCP4342-503E/ST uses non-volatile memory to store the last programmed wiper position for all 4 channels. After power is restored, the device resumes operation at the saved settings without requiring the host microcontroller to reprogram it, which is essential for field-calibrated instruments.
For a 4-channel audio equalizer design, how does the MCP4342-503E/ST's bandwidth limit its usable frequency range?
The MCP4342-503E/ST has a nominal bandwidth of 200 Hz, making it suitable for very low-frequency tuning applications such as DC bias adjustment and slow-varying analog control rather than audio-frequency signal paths above 200 Hz. For audio equalizer applications above 1 kHz, a higher-bandwidth digital potentiometer would be required.
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