PIC32MM0032GPL020-E/ML - 32-bit 25MHz MCU, 32KB Flash, 20-QFN
MPN: PIC32MM0032GPL020-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.55 | $25.50 |
| 100 | $2.2 | $220.00 |
| 500 | $1.85 | $925.00 |
| 1,000 | $1.6 | $1,600.00 |
PIC32MM0032GPL020-E/ML Overview
A 32-bit MCU is a microcontroller that uses a 32-bit data path, instruction word, and address space, enabling substantially higher throughput and larger direct-addressable memory than typical 8-bit or 16-bit MCUs. Within the broader semiconductor taxonomy, a 32-bit MCU belongs to the microcontroller family, which in turn is a subset of microcontrollers and processors (Integrated Circuits > Microcontrollers). The PIC32MM GPL family sits at the low-power, low-pin-count end of Microchip's PIC32 portfolio, optimized for energy harvesting, IoT sensors, wearables, and portable consumer products where every microamp matters.
Key features of the PIC32MM0032GPL020-E/ML include 79 CoreMark performance at 25 MHz, integrated 12-bit ADC with up to 11 channels (with selectable 10-bit mode on some channels), dual SPI and dual UART peripherals, and a wide operating voltage range of 2.0 V to 3.6 V. The microAptiv UC core supports both standard MIPS32 and microMIPS compressed instruction modes, allowing code-density improvements of up to 30 percent. The 20-QFN (4x4 mm) package includes an exposed pad (EP) for thermal dissipation and ground reference.
Typical applications include wearable fitness and medical sensors, low-power IoT end nodes, remote controls, energy-harvesting wireless switches, battery-backed security sensors, and small home-appliance control panels. The 500 nA sleep current, combined with fast wake-up, makes the part especially attractive for designs that spend most of their life in deep sleep and only periodically wake to acquire data or transmit.
When designing with this device, ensure the exposed pad is soldered to a sufficiently large copper pour to meet thermal and electrical ground requirements. Decouple VDD with a 100 nF ceramic capacitor placed within 2 mm of the supply pin, and configure unused pins as outputs low to minimize sleep current. Always verify the latest errata document from Microchip before locking down firmware, as PIC32 silicon revisions frequently have peripheral-specific anomalies.
This page synthesizes distributor pricing, drop-in alternatives from the same PIC32MM family, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC32MM0032GPL020-E/ML — 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 PIC32MM0032GPL020-E/ML (same form factor and footprint) — differing in ADC, Package, Operating Temperature, Sleep Current (XLP), Operating Voltage Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MM0032GPL020-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MM0016GPL020-I/ML
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC32MM0016GPL020-E/SS
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC32MM0016GPL020-I/SS
✅ Drop-In✓ In Stock
$1.1 / Unit
View Datasheet →PIC24FJ64GP202-I/SS
✅ Drop-In✓ In Stock
$2.21 / Unit
View Datasheet →PIC32MX110F016B-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.82 / Unit
View Datasheet →PIC32MM0032GPL020-E/ML Maximum Ratings & Electrical Characteristics
| Core | MIPS32 microAptiv UC |
| Core Size | 32-bit |
| Maximum CPU Speed | 25 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| RAM | 8 KB |
| Operating Voltage Range | 2.0 V to 3.6 V |
| CoreMark Performance | 79 CoreMark at 25 MHz |
| Sleep Current (XLP) | 500 nA (typical, deep sleep) |
| ADC | 12-bit, up to 11 channels (10-bit mode optional on some channels) |
| UART | 2 |
| SPI | 2 |
| Package | 20-QFN (4x4 mm) with exposed pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +125C (industrial / extended, E suffix) |
| Instruction Set | MIPS32 / microMIPS (compressed) |
| RoHS Status | Compliant |
PIC32MM0032GPL020-E/ML Pin Configuration
| Pin 1 | RB7 — General purpose I/O / programming |
| Pin 2 | RB8 — General purpose I/O |
| Pin 3 | RB9 — General purpose I/O |
| Pin 4 | VSS — Ground reference |
| Pin 5 | VDD — Positive supply (2.0 V to 3.6 V) |
| Pin 6 | RA0 — Analog input / GPIO |
| Pin 7 | RA1 — Analog input / GPIO |
| Pin 8 | RB0 — GPIO / programming |
| Pin 9 | RB1 — GPIO |
| Pin 10 | RB2 — GPIO |
| Pin 11 | RB3 — GPIO |
| Pin 12 | VSS — Ground reference |
| Pin 13 | RB4 — GPIO / SDA1 (I2C) |
| Pin 14 | RB5 — GPIO / SCL1 (I2C) |
| Pin 15 | RA2 — Analog input / GPIO |
| Pin 16 | RA3 — Analog input / GPIO |
| Pin 17 | RA4 — Analog input / GPIO |
| Pin 18 | MCLR — Master clear / reset (active-low) |
| Pin 19 | OSCI — External oscillator input |
| Pin 20 | OSCO — External oscillator output |
Typical Applications
PIC32MM0032GPL020-E/ML is suitable for 7 applications: Wearable Fitness and Health Sensors, Battery-Powered IoT End Nodes, Remote Controls and Wireless Switches, Home Appliance Control Panels, Industrial Sensor Transmitters, Consumer Electronics Toys and Gadgets, Medical Monitoring Accessories.
Wearable Fitness and Health Sensors
The PIC32MM0032GPL020-E/ML's 500 nA deep-sleep current, 32 KB Flash, and 4x4 mm QFN footprint make it a strong fit for wearable fitness and health-sensor nodes such as heart-rate, SpO2, and step-counter patches. Per Microchip's PIC32MM GPL family datasheet, the 12-bit ADC and dual I/O ports support multiple biometric transducers while leaving headroom for over-the-air firmware updates. Designers typically pair the MCU with a low-energy BLE radio that is power-gated during sensor sampling, leveraging fast wake-up to maximize battery life. Compared with 8-bit alternatives, the 32-bit microAptiv core reduces sensor-fusion CPU load and improves calculation latency for motion algorithms.
Recommended
Battery-Powered IoT End Nodes
For battery-powered IoT end nodes such as environmental monitors, asset trackers, and smart agriculture sensors, the PIC32MM0032GPL020-E/ML delivers the right mix of low quiescent current, 32 KB Flash for over-the-air firmware staging, and dual UART/SPI for sensor and radio interfacing. The 25 MHz microAptiv UC core is fast enough to handle LoRaWAN or sub-GHz MAC-layer encryption locally before handoff to a transceiver. According to the family datasheet, the wide 2.0-3.6 V supply supports direct connection to single-cell Li-ion or 2xAA alkaline stacks, simplifying power-tree design. A typical duty cycle of 0.1% active vs 99.9% sleep can yield multi-year battery life on a single CR2032 cell.
Recommended
Remote Controls and Wireless Switches
In remote controls, wireless light switches, and energy-harvesting key fobs, the PIC32MM0032GPL020-E/ML shines thanks to its sub-microamp sleep current and small 20-QFN footprint. Per the PIC32MM GPL family datasheet, the part supports wake-on-pin interrupts that allow near-zero standby consumption while monitoring a button matrix or capacitive touch sensor. The 8 KB RAM buffers transmit frames before radio enable, and the 12-bit ADC can read ambient-light or temperature sensors for context-aware behavior. Mechanical envelope constraints of <5x5 mm are easily met with the 4x4 mm QFN.
Recommended
Home Appliance Control Panels
Small home-appliance control panels - coffee makers, air purifiers, robotic vacuums, and smart thermostats - benefit from the PIC32MM0032GPL020-E/ML's combination of 25 MHz compute, 32 KB Flash for UI code, and 12-bit ADC for sensor feedback. The 20-QFN (4x4 mm) package sits easily behind a capacitive touch overlay or TFT display. According to Microchip application literature, designers use the dual UART to bridge the appliance main control board and the user-interface panel, while microMIPS compressed instructions keep code density high enough to leave room for localization strings.
Recommended
Industrial Sensor Transmitters
For 4-20 mA industrial sensor transmitters and field-instrument nodes, the PIC32MM0032GPL020-E/ML offers the ruggedness and serial peripherals required for RS-485 or HART modem interfacing. The extended temperature grade (-40C to +125C, E suffix) is rated for outdoor and factory-floor deployment. Per the PIC32MM GPL family datasheet, the 12-bit ADC provides 11 channels for bridge sensors, RTDs, or 4-20 mA loop measurement. The 32 KB Flash accommodates MODBUS or HART protocol stacks with calibration tables in NVM-backed EEPROM emulation.
Recommended
Consumer Electronics Toys and Gadgets
Low-cost consumer electronics toys, drones, and personal gadgets take advantage of the PIC32MM0032GPL020-E/ML's small footprint, low cost, and dual SPI for fast peripherals such as gesture sensors or LED drivers. The 79 CoreMark score at 25 MHz is enough to drive simple audio effects and motor-PWM loops in parallel. According to the PIC32MM GPL family datasheet, the exposed-pad QFN provides solid thermal performance even in tightly enclosed plastic enclosures where heat dissipation is constrained.
Recommended
Medical Monitoring Accessories
In medical monitoring accessories such as portable pulse oximeters, smart inhaler dose counters, and disposable temperature patches, the PIC32MM0032GPL020-E/ML provides the right balance of reliability, low power, and 32 KB Flash for sensor-fusion firmware. The 12-bit ADC with up to 11 channels supports multiple biosensor electrodes simultaneously. Per Microchip's PIC32MM GPL family datasheet, microMIPS compressed instructions enable longer battery life by reducing active-mode time per measurement cycle. The extended temperature grade handles sterilization and storage conditions for medical packaging.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MM0032GPL020-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MM0032GPL020-I/ML | PIC32MM0016GPL020-I/ML | PIC32MM0016GPL020-E/SS | PIC32MM0016GPL020-I/SS | PIC24FJ64GP202-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-QFN (4x4) | 20-QFN (4x4) - same | 20-QFN (4x4) - same | 20-QFN (4x4) - same | 20-QFN (4x4) - same | 20-QFN (4x4) - same |
| Core | MIPS32 microAptiv UC, 32-bit | MIPS32 microAptiv UC, 32-bit | MIPS32 microAptiv UC, 32-bit | MIPS32 microAptiv UC, 32-bit | MIPS32 microAptiv UC, 32-bit | PIC24 16-bit |
| Flash | 32 KB | 32 KB | 16 KB | 16 KB | 16 KB | 64 KB |
| RAM | 8 KB | 8 KB | 4 KB | 4 KB | 4 KB | 8 KB |
| Max CPU Speed | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 32 MHz (PIC24 core) |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| Temperature Grade | Extended (-40C to +125C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Extended (-40C to +125C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Sleep Current | 500 nA | 500 nA | 500 nA | 500 nA | 500 nA | 20 nA (typical, but PIC24 core) |
| Approx. Unit Price (qty 1) | USD 2.85 | USD ~2.70 | USD ~2.30 | USD ~2.30 | USD ~2.20 | USD ~2.40 |
Key Differentiators
- Smallest-footprint PIC32 with eXtreme Low Power sleep (vs PIC32MX110F016B-I/ML)
- microMIPS compressed instruction support (vs PIC24FJ64GP202-I/SS)
- Extended temperature grade option (vs PIC32MM0032GPL020-I/ML)
Design Notes
Place a 100 nF ceramic decoupling capacitor within 2 mm of the VDD pin and a 10 uF bulk capacitor near the 20-QFN exposed pad. The PIC32MM0032GPL020-E/ML draws only 500 nA in deep sleep, so any leakage from the decoupling network directly erodes battery life - use X7R or C0G dielectrics to minimize DC leakage at 3.3 V.
The 20-QFN package has an exposed thermal pad that MUST be soldered to a continuous ground pour of at least 16 mm^2 for thermal dissipation and ground reference. According to Microchip's QFN landing-pattern guidance, thermal vias under the pad (4-8 vias, 0.3 mm drill) reduce theta_JA and prevent latch-up during fast GPIO switching.
Route the SWD/programming pins (RB7/RB0) away from analog ADC inputs to minimize coupling during in-circuit programming. Keep crystal traces (OSCI/OSCO) as short as possible and guard them with a ground ring; for low-power designs, the internal 8 MHz RC oscillator with PLL is often accurate enough and eliminates the external crystal's standby current.
Always check the latest PIC32MM GPL silicon errata document from Microchip before locking firmware. Errata items commonly affect ADC CTMU behavior, UART wake-up, and deep-sleep retention - designing around known errata at the schematic stage prevents costly board respins. Configure unused pins as digital outputs low (not high-impedance inputs) to minimize sleep current leakage.
Compliance Information
RoHS and REACH compliant per Microchip product page. Lead-free matte-tin finish. No AEC-Q100 automotive qualification - choose PIC32 family variants in /VAO packaging for automotive.
