MCP4342-502E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP4342-502E/ST is a quad-channel 128-step digital potentiometer from Microchip with 5 kOhm end-to-end resistance, SPI 3-wire interface, and non-volatile wiper position memory. Features 2 kHz bandwidth in a 14-pin TSSOP package. Available from stock worldwide.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4342-502E/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
Key Features
- Quad independent 5 kOhm channels with 128-step resolution for precise resistance tuning via SPI
- Non-volatile wiper position memory retains settings across power cycles without host MCU overhead
- 2 kHz bandwidth in a 14-pin TSSOP package enabling compact multi-channel gain and offset adjustment
Applications
The MCP4342-502E/ST replaces four mechanical potentiometers in audio mixing, instrumentation calibration, and programmable gain amplifier stages where digitally controlled 5 kOhm resistance in 128 steps provides repeatable adjustment without mechanical wear. Its non-volatile memory is particularly valuable in calibration-at-factory applications such as sensor offset trimming, where wiper positions must survive power cycling without host MCU intervention. The SPI interface allows all 4 channels to be updated in a single burst transaction, enabling synchronized multi-parameter tuning in closed-loop control systems.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 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 | 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 | Malaysia, Philippines, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many discrete resistance steps does MCP4342-502E/ST provide across its 5 kOhm range?
The MCP4342-502E/ST provides 128 steps across 5 kOhm, giving a step resolution of approximately 39.1 ohms per increment. This resolution suits gain trimming in instrumentation amplifiers where 0.8% adjustability per step achieves precision calibration, and audio volume control where 128 steps covers audible range with smooth, artifact-free transitions.
Does MCP4342-502E/ST retain its wiper position when power is removed?
Yes, MCP4342-502E/ST stores wiper positions in non-volatile EEPROM memory, retaining the last set resistance value for all 4 channels indefinitely after power removal. Each wiper supports up to 100,000 write cycles before endurance limits, making it suitable for factory calibration workflows where settings are written once and must survive the product's full lifetime without refresh.
For audio or signal conditioning designs, what bandwidth limitation should designers expect from MCP4342-502E/ST?
The MCP4342-502E/ST has a nominal -3 dB bandwidth of 2 kHz in the rheostat configuration with the 5 kOhm resistance fully engaged. For audio applications, this limits use to low-frequency gain trimming and DC offset adjustment rather than in-signal-path attenuation above 2 kHz. Designers requiring higher bandwidth should select the MCP4341 variant with 1 MOhm end-to-end resistance, which shifts the RC bandwidth pole higher in typical circuit configurations.
How does MCP4342-502E/ST compare to MCP4332 when choosing a quad non-volatile digital potentiometer?
MCP4342-502E/ST offers 128-step resolution and 5 kOhm end-to-end resistance, while MCP4332 provides the same 128 steps but in a 10 kOhm or 50 kOhm variant. Both devices share the same 14-pin TSSOP package, SPI interface, and non-volatile memory architecture, allowing direct substitution. Choose MCP4342-502E/ST when 5 kOhm is the target for load-driving applications; choose MCP4332 for higher-impedance voltage-divider configurations to minimize current draw.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.7100 | $1.71 |
| 96+ | $1.6200 | $155.52 |
| 100+ | $1.4000 | $140.00 |
| 1000+ | $1.3600 | $1360.00 |
| 5000+ | $1.3500 | $6750.00 |
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