NAFE33352-UIOM - Universal AIO AFE Arduino Shield | NXP
MPN: NAFE33352-UIOM β Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
NAFE33352-UIOM Overview
An analog front-end (AFE) is the circuit block that conditions real-world analog signals - voltages, currents, RTD and thermistor readings - before conversion to digital data, or generates analog outputs from digital commands. Within the signal-chain hierarchy, an AFE sits between sensors/actuators and the digital controller, encompassing amplifiers, filters, ADCs, DACs, and diagnostics. The NAFE33352-UIOM packages this complete signal chain on an Arduino-compatible expansion board.
Key features include software configurability of the analog input/output channels, a readback path that measures voltage and current output (Vsense, Isense), and an LVMUX connection to the ADC for digitizing external and internal signals for condition monitoring. The combination of current output and voltage input enables resistance and temperature measurement using RTDs or thermistors, making the board suitable for industrial-grade measurement and control validation.
Technically, the board enables compact hardware design and enhanced software configurability through the universal Open-Cortex Microcontroller Software Interface Standard (CMSIS) driver, allowing engineers to validate analog accuracy and diagnostics before committing to a production design. The underlying NAFE33352 device is a software-configurable universal low-power AIO-AFE family targeting high-precision industrial requirements.
Typical applications include industrial sensor acquisition with RTDs and thermistors, 4-20 mA style analog output validation, and analog condition monitoring in factory automation and process control test setups.
Design consideration: treat the board as a validation and prototyping platform - verify analog accuracy, diagnostics coverage, and software driver behavior against your end-system requirements before scaling the NAFE33352 into a custom PCB.
This page synthesizes manufacturer product information, the NAFE33352 datasheet, the user manual UM12469, and distributor availability into practical evaluation guidance not found on any single source page.
Drop-in alternatives for NAFE33352-UIOM β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with NAFE33352-UIOM (same form factor and footprint) β differing in Product Type, Target Device.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
NAFE33350-UIOM
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
NAFE33352-UIOM Specifications (manufacturer-published)
| Product Type | Universal AIO AFE Arduino Shield Evaluation Board |
| Target Device | NAFE33352 universal analog input/output AFE |
| Secondary Device Support | NAFE33350 analog output AFE |
| Form Factor | Arduino shield expansion board |
| Software Interface | CMSIS driver (Open-Cortex Microcontroller Software Interface Standard) |
| Measurement Functions | Voltage and current output readback (Vsense, Isense) |
| Mux Feature | LVMUX connection to ADC for external/internal signal digitization |
| Sensor Support | RTD and thermistor temperature measurement |
| Target Market | Industrial-grade analog measurement and control |
| Analog Output Support | Yes (analog output AFE configuration) |
| MCU Compatibility | NXP microcontrollers via Expansion Board Hub |
| Software Tools | MCUXpresso Expansion Board Hub support |
NAFE33352-UIOM Interfaces & Connectors
No manufacturer-published interface list is available for NAFE33352-UIOM. Refer to the manufacturer documentation for connector and header details.
Refer to the manufacturer documentation for the full expansion header pinout and connector pin numbering.
Typical Applications
NAFE33352-UIOM is suitable for 6 applications: Industrial Sensor Acquisition, Temperature Measurement with RTDs, Analog Output and Actuator Control, Condition Monitoring Systems, Analog Accuracy Validation Before Production, Process Control Automation.
Industrial Sensor Acquisition
The NAFE33352-UIOM fits industrial sensor acquisition because the NAFE33352 provides software-configurable universal analog inputs with a readback path (Vsense, Isense) and an LVMUX-to-ADC connection for condition monitoring. In a typical setup, the shield sits on an NXP MCU development board, with RTD or thermistor sensors connected to the analog input channels; the current-output plus voltage-input combination directly measures resistance and temperature per the NXP documentation. Engineers use the platform to validate measurement accuracy, linearity, and diagnostics coverage - such as sensor open-circuit detection - before committing the 6 mm x 6 mm 40-pin HVQFN NAFE33352 to a custom production PCB. The CMSIS driver under MCUXpresso accelerates firmware bring-up.
Recommended
Temperature Measurement with RTDs
The board is well matched to RTD-based temperature measurement because the NAFE33352 combines current output and voltage input, which - per the NXP overview - allows measurement of resistance and temperature using RTDs or thermistors. The shield excites the RTD with a configured current, digitizes the resulting voltage through the software-configurable ADC path, and the MCU computes temperature using standard conversion curves. On the UIOM platform, engineers validate excitation-current selection, gain settings, and diagnostic coverage (such as wiring-fault detection) under real wiring conditions before transferring register configurations to the production HVQFN-40 design. The industrial-grade NAFE33352 targets the high-precision measurement requirements typical of process-control temperature loops.
Recommended
Analog Output and Actuator Control
Because the NAFE33352-UIOM also supports the NAFE33350 analog output AFE, the platform serves analog-output and actuator-control validation. The NAFE33350 is described by NXP as a highly configurable analog output AFE, so the same shield can generate controlled output signals for driving actuators, reference signals, or control loops in industrial equipment. The Vsense and Isense readback path is critical here: it lets firmware verify that the commanded output actually appears at the terminals, catching faults such as short circuits or load drift - a diagnostics capability NXP highlights for condition monitoring. Teams can prototype closed-loop control on the Arduino-compatible form factor, then scale the NAFE33352 or NAFE33350 into production hardware with validated register settings.
Recommended
Condition Monitoring Systems
The NAFE33352-UIOM supports condition monitoring through the NAFE33352's LVMUX connection to the ADC, which digitizes external and internal signals for health tracking, as documented in the NXP overview. In a typical deployment validation, miscellaneous analog supervision points - supply rails, internal references, external sensor voltages - are routed through the LVMUX and sampled alongside the primary measurement channels. The Vsense/Isense output readback adds self-diagnostics on analog outputs. Engineers use the shield to verify that monitoring firmware correctly detects drift, faults, and out-of-range conditions before production. This capability aligns with industrial predictive-maintenance architectures where analog front-end health data feeds higher-level asset-management software via the MCU and CMSIS driver stack.
Recommended
Analog Accuracy Validation Before Production
NXP's UM12469 user manual positions the NAFE33352-UIOM as a deployment-ready platform that helps engineers validate analog accuracy and diagnostics before scaling to production. The workflow is direct: mount the shield on a compatible NXP MCU board, run measurement campaigns against known references to characterize offset, gain error, and noise of the NAFE33352's software-configurable channels, and exercise diagnostics paths under fault injection. Because the same CMSIS driver used on the shield carries into production firmware, validated register configurations and software behave identically on the final 6 mm x 6 mm 40-pin HVQFN implementation. This shortens design-in cycles and de-risks the transition from evaluation hardware to a custom industrial PCB.
Recommended
Process Control Automation
In process control, the NAFE33352-UIOM bridges field sensors and controller development: the NAFE33352 is explicitly described by NXP as meeting the high-precision measurement and control requirements of industrial-grade applications. A typical bench setup uses the shield to prototype a control node - reading RTD or thermistor temperature inputs through the analog input path while issuing analog control outputs through the supported NAFE33350 output configuration, with Vsense/Isense readback supervising loop health. The Arduino-compatible form factor and MCUXpresso CMSIS driver let control-algorithm developers iterate quickly on real analog hardware rather than simulation. Once accuracy and diagnostics are validated, the software-configurable AFE settings transfer to the production HVQFN-40 design.
Recommended
Recommended Products Summary
Engineering reference data for NAFE33352-UIOM β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | NAFE33350-UIOM |
|---|---|---|
| Package / Form Factor | Arduino shield expansion board | Arduino shield expansion board - same form factor |
| Brand | NXP Semiconductors | NXP Semiconductors |
| Target AFE IC | NAFE33352 universal AIO AFE | NAFE33350 analog-output AFE |
| Analog Output Support | Yes | Yes (primary function) |
Key Differentiators
- Universal analog input AND output on one shield (vs NAFE33350-UIOM)
- Built-in condition monitoring path (vs Generic Arduino analog shields)
- Direct migration path to industrial silicon (vs NAFE33350-UIOM)
Design Notes
Treat the NAFE33352-UIOM strictly as an evaluation and prototyping platform, not production hardware. Per NXP documentation, its purpose is to validate analog accuracy and diagnostics before scaling to production - the production bill of materials centers on the NAFE33352 chip itself in the 6 mm x 6 mm 40-pin HVQFN package. Register configurations and CMSIS driver code validated on the shield transfer to the custom design, but the shield's power distribution, connectors, and protection circuitry must be independently engineered for the end product's environmental and safety requirements.
When validating RTD or thermistor measurements on the NAFE33352-UIOM, replicate the production wiring conditions: the NAFE33352's current-output plus voltage-input architecture measures resistance, so lead resistance, cable length, and connector contact resistance directly affect reading accuracy. Exercise the Vsense/Isense readback and LVMUX diagnostic paths with deliberate fault injection (open and shorted leads) during evaluation, so the diagnostics coverage you rely on in production is proven under the same software stack. Document the final register map from the shield experiments for reuse.
For the eventual production design based on this evaluation, consult the NAFE33352 pinning documentation (docs.nxp.com), which describes the 6 mm x 6 mm 40-pin HVQFN starting with pin 1 DVDD (3.3 V domain). Follow NXP layout guidance for the analog front-end: separate analog and digital ground returns, place decoupling per the datasheet recommendations, and keep high-impedance analog input traces short and guarded. The CMSIS driver remains identical between the UIOM shield and custom hardware, easing firmware migration.
Compliance Information
Compliance status not stated in verified data; confirm on the NXP product page (nxp.com/part/NAFE33352-UIOM) or distributor compliance documents.
