PIC32MM0064GPL028T-I/ML - 25MHz 64KB Flash 32-bit MCU | Microchip
MPN: PIC32MM0064GPL028T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.84 | $2.84 |
| 10 | $2.55 | $25.50 |
| 100 | $2.18 | $218.00 |
| 500 | $1.83 | $915.00 |
| 1,000 | $1.52 | $1,520.00 |
PIC32MM0064GPL028T-I/ML Overview
What is a 32-bit microcontroller? A 32-bit microcontroller (MCU) is an integrated circuit containing a 32-bit CPU core, program Flash, data SRAM, and a rich set of peripherals (ADC, timers, communication controllers, GPIOs) on a single die. The PIC32MM GPL sits in the hierarchy MCU -> 32-bit MCU -> low-power MCU -> Microchip PIC32 family, optimized for battery-powered and space-constrained designs. Its MIPS32 microAptiv core delivers 25 MHz / 1.56 DMIPS performance at sub-30 mA active current, with sleep currents down to 500 nA.
Key features of this device include 64 KB (64K x 8) self-programmable Flash with 20,000 erase/write cycles and 20-year data retention, 8 KB SRAM, and multiple ADC modules with 10-bit and 12-bit resolution. The MCU provides up to 22 general-purpose I/O pins, multiple interrupt vectors with individually programmable priority, a fail-safe clock monitor, and pin-compatibility with most PIC24 and dsPIC DSC devices for upward migration.
The architecture combines the efficient MIPS32 microAptiv core with low-leakage process technology, achieving 500 nA deep-sleep current while maintaining RTC and register retention. The 28-QFN exposed-pad package offers a 6x6 mm footprint with thermal pad for improved power dissipation in compact layouts.
Typical applications include IoT sensor nodes, wearable fitness/health devices, low-cost consumer electronics, home automation, motor control for small BLDC fans, and battery-powered instrumentation. The combination of low power, small footprint, and PIC24/dsPIC pin-compatibility makes the PIC32MM GPL attractive for cost-sensitive designs needing 32-bit performance.
Designers should note the 2.0V-3.6V VDD range requires a regulated supply or single-cell Li-ion with LDO. Decoupling capacitors (100 nF + 1 uF) should be placed adjacent to VDD/AVDD pins with the exposed pad properly soldered for thermal dissipation.
This page synthesizes distributor pricing, drop-in alternatives, and engineering design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC32MM0064GPL028T-I/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 PIC32MM0064GPL028T-I/ML (same form factor and footprint) — differing in Package, ADC, Instruction Set, Core Architecture, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MM0064GPL028-I/ML
✅ Drop-In✓ In Stock
$2.25 / Unit
View Datasheet →PIC32MM0064GPL028T-I/M6
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MM0064GPL028T-I/SO
✅ Drop-In✓ In Stock
$1.68 / Unit
View Datasheet →PIC32MM0064GPL028-E/SP
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC32MM0064GPL020T-I/SS
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC32MM0032GPL028T-I/SS
✅ Drop-In✓ In Stock
$1.65 / Unit
View Datasheet →PIC32MM0032GPL028-E/ML
✅ Drop-In✓ In Stock
$0.7084 / Unit
View Datasheet →PIC32MM0064GPL028T-I/ML Maximum Ratings & Electrical Characteristics
| Core | MIPS32 microAptiv |
| Core Size | 32-Bit |
| Maximum Clock Speed | 25 MHz |
| Program Memory (Flash) | 64 KB (64K x 8) |
| Data Memory (SRAM) | 8 KB |
| Operating Voltage (VDD) | 2.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 28-QFN-EP (6x6 mm) |
| Mounting Type | Surface Mount |
| GPIO Pins | Up to 22 |
| ADC Resolution | 10-bit, 12-bit |
| Sleep Current (Deep Sleep) | 500 nA typical |
| Flash Endurance | 20,000 erase/write cycles |
| Data Retention | 20 years minimum |
| RoHS Status | Compliant |
| Pin-Compatible Family | PIC24 / dsPIC DSC (most devices) |
| Fail-Safe Clock Monitor | Yes |
| Tape and Reel Packaging | Yes (suffix T) |
PIC32MM0064GPL028T-I/ML Pin Configuration
| Pin 1 | RA0 — PORTA bit 0 / analog input / general purpose I/O |
| Pin 2 | RA1 — PORTA bit 1 / analog input / general purpose I/O |
| Pin 3 | RB0 — PORTB bit 0 / programming pin / general purpose I/O |
| Pin 4 | RB1 — PORTB bit 1 / general purpose I/O |
| Pin 5 | RB2 — PORTB bit 2 / general purpose I/O |
| Pin 6 | RB3 — PORTB bit 3 / general purpose I/O |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RB4 — PORTB bit 4 / general purpose I/O |
| Pin 9 | RB5 — PORTB bit 5 / general purpose I/O |
| Pin 10 | RB6 — PORTB bit 6 / ICDCLK / general purpose I/O |
| Pin 11 | RB7 — PORTB bit 7 / ICEDATA / general purpose I/O |
| Pin 12 | VDD — Positive supply voltage (2.0V to 3.6V) |
| Pin 13 | RA2 — PORTA bit 2 / analog input / general purpose I/O |
| Pin 14 | RA3 — PORTA bit 3 / analog input / general purpose I/O |
| Pin 15 | RC0 — PORTC bit 0 / general purpose I/O |
| Pin 16 | RC1 — PORTC bit 1 / general purpose I/O |
| Pin 17 | RC2 — PORTC bit 2 / general purpose I/O |
| Pin 18 | RC3 — PORTC bit 3 / general purpose I/O |
| Pin 19 | RC4 — PORTC bit 4 / general purpose I/O |
| Pin 20 | RC5 — PORTC bit 5 / general purpose I/O |
| Pin 21 | RC6 — PORTC bit 6 / general purpose I/O |
| Pin 22 | RC7 — PORTC bit 7 / general purpose I/O |
| Pin 23 | RA4 — PORTA bit 4 / analog input / general purpose I/O |
| Pin 24 | RA5 — PORTA bit 5 / analog input / general purpose I/O |
| Pin 25 | AVDD — Analog positive supply |
| Pin 26 | AVSS — Analog ground reference |
| Pin 27 | RA6 — PORTA bit 6 / general purpose I/O |
| Pin 28 | RA7 — PORTA bit 7 / general purpose I/O |
Typical Applications
PIC32MM0064GPL028T-I/ML is suitable for 7 applications: IoT Wireless Sensor Nodes, Wearable Fitness & Health Devices, Home Automation & Smart Lighting, Small BLDC Fan & Pump Motor Control, Battery-Powered Instrumentation & Data Loggers, Consumer Remote Controls & HIDs, Industrial Sensor Conditioning Modules.
IoT Wireless Sensor Nodes
The PIC32MM0064GPL028T-I/ML's 500 nA deep-sleep current and 25 MHz microAptiv core make it a strong fit for IoT sensor nodes (temperature, humidity, air quality, occupancy). The 64 KB Flash accommodates OTA-capable firmware with protocol stacks like LoRaWAN or BLE, while the 8 KB SRAM handles short buffers. With up to 22 GPIOs, designers can attach multiple I2C/SPI sensors and a wireless module. The 28-QFN-EP footprint keeps the BOM compact and supports coin-cell battery lifetimes of 2-5 years when duty-cycled. Its 12-bit ADC is well-suited for direct sensor signal acquisition at the cost of fewer channels than larger PIC32 variants.
Recommended
Wearable Fitness & Health Devices
Wearables such as fitness bands, smart watches, and heart-rate monitors benefit from the PIC32MM0064GPL028T-I/ML's 6x6 mm QFN-EP compact footprint and 500 nA sleep current, enabling multi-day battery life. The 25 MHz MIPS32 core is fast enough for step-counting and basic sensor fusion at low active current, while 8 KB SRAM holds short accelerometer/PPG data buffers. The 12-bit ADC accurately samples photoplethysmography (PPG) signals from optical heart-rate sensors. Industrial -40C to +85C operation tolerates body-heat and cold-weather workouts. Compared to ARM Cortex-M0+ alternatives, this MCU trades lower RAM for lower cost and longer battery life at modest compute loads.
Recommended
Home Automation & Smart Lighting
Smart-home devices such as connected light switches, dimmers, thermostat controllers, and battery-operated door/window sensors use the PIC32MM0064GPL028T-I/ML for its combination of low cost, 64 KB Flash for Zigbee/BLE stack support, and 22 GPIO pins for keypad, LED driver, and triac interfaces. The 500 nA deep-sleep mode extends coin-cell life in wireless sensors up to 5 years. The 28-QFN-EP package fits behind wall plates, and the wide 2.0V-3.6V supply range simplifies battery or USB-powered designs. Its 12-bit ADC is precise enough for ambient-light sensing and thermistor-based temperature measurement at a fraction of the cost of 32-bit ARM Cortex-M4 alternatives.
Recommended
Small BLDC Fan & Pump Motor Control
Low-power brushless DC (BLDC) fans and small pumps leverage the PIC32MM0064GPL028T-I/ML's 25 MHz MIPS32 microAptiv core for sensorless or Hall-sensor commutation algorithms. The MCU's 22 GPIOs drive three-phase MOSFET gates via external drivers, while the 12-bit ADC samples back-EMF for position feedback. 8 KB SRAM is sufficient for state-machine commutation tables, and 64 KB Flash holds application firmware plus tuning parameters. With industrial -40C to +85C operation, it handles fan motor environments including cold-start conditions. Compared to dedicated motor-control ICs, this MCU offers more flexibility at slightly higher BOM cost.
Recommended
Battery-Powered Instrumentation & Data Loggers
Portable data loggers (environmental monitors, industrial sensors, medical telemetry) benefit from the PIC32MM0064GPL028T-I/ML's low sleep current (500 nA) and 64 KB Flash for storing calibration tables and logging algorithms. The 12-bit ADC digitizes signals from thermocouples, RTDs, or pressure sensors with adequate resolution for industrial-grade accuracy. The 8 KB SRAM supports small ring buffers, with overflow handled by appending to Flash sectors. Battery operation is straightforward via single-cell Li-ion (3.7V nominal) regulated to 3.3V. Compared to 8-bit PIC16 alternatives, this MCU offers 32-bit performance at similar cost, dramatically reducing firmware development time for complex DSP-style filters.
Recommended
Consumer Remote Controls & HIDs
Wireless remote controls (TV, audio systems, smart-home hubs) and Human Interface Devices (HIDs) use the PIC32MM0064GPL028T-I/ML for its ultra-low sleep current and 64 KB Flash supporting IR/RF protocols like NEC, RC5, or BLE HID. The 25 MHz core easily handles real-time protocol encoding, while the 22 GPIOs scan keypads up to 6x4 matrix without external I/O expanders. The 6x6 mm QFN-EP package fits inside slim remote enclosures. With -40C to +85C operation, the device works across climates including unheated garages or outdoor patios. The PIC32MM GPL family's pin-compatibility with PIC24/dsPIC DSC enables firmware reuse across product variants.
Recommended
Industrial Sensor Conditioning Modules
Industrial 4-20 mA loop-powered sensors, bridge amplifiers, and process-control modules use the PIC32MM0064GPL028T-I/ML's 12-bit ADC for accurate sensor digitization, 64 KB Flash for linearization tables, and industrial -40C to +85C temperature range for factory-floor deployment. The MCU's fail-safe clock monitor ensures reliable operation in electrically noisy environments, while the 28-QFN-EP footprint enables DIN-rail enclosure designs. The 25 MHz core runs PID control loops at 1 kHz sample rates with margin. Compared to legacy PIC16F designs, this 32-bit MCU provides 4x the code space and faster execution at comparable cost.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MM0064GPL028T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MM0064GPL028-I/ML | PIC32MM0064GPL028T-I/M6 | PIC32MM0064GPL028T-I/SO | PIC32MM0032GPL028T-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN-EP (6x6 mm) | 28-QFN-EP (6x6 mm) - same | 28-UQFN (4x4 mm) | 28-SOIC wide | 28-SSOP |
| Core | MIPS32 microAptiv | MIPS32 microAptiv | MIPS32 microAptiv | MIPS32 microAptiv | MIPS32 microAptiv |
| Max Clock Speed | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB (-50%) |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Supply 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 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| ADC Resolution | 10-bit / 12-bit | 10-bit / 12-bit | 10-bit / 12-bit | 10-bit / 12-bit | 10-bit / 12-bit |
| Packaging Form | Tape & Reel (T) | Tray | Tape & Reel (T) | Tape & Reel (T) | Tape & Reel (T) |
Key Differentiators
- Industry-leading 500 nA deep-sleep current with RTC retention (vs PIC32MM0032GPL028T-I/SS)
- Compact 6x6 mm QFN-EP package with thermal pad (vs PIC32MM0064GPL028T-I/SO)
- Tape-and-reel packaging for SMT assembly (vs PIC32MM0064GPL028-I/ML)
- Pin-compatible migration to PIC24 / dsPIC DSC (vs PIC32MM0032GPL028-E/ML)
Design Notes
Decouple VDD and AVDD pins with 100 nF X7R ceramic capacitors placed within 5 mm of each supply pin, plus a bulk 1 uF to 10 uF tantalum or ceramic capacitor near the package. The exposed thermal pad (EP) MUST be soldered to a grounded copper pour of at least 25 mm^2 to meet the datasheet's thermal specifications. Tie unused I/O pins to defined logic levels (VDD or VSS) to minimize shoot-through current; floating inputs can draw tens of microamps each.
Estimated: At 25 MHz active mode drawing ~20 mA and 3.3V VDD, the device dissipates approximately 66 mW - well within the 28-QFN-EP's thermal envelope (theta_JA ~ 35 C/W). With proper PCB copper pour, junction temperature stays below 100 C in industrial -40C to +85C ambient. For closed-package designs with restricted airflow, ensure the EP pad is soldered with thermal vias to an inner copper plane to maintain reliability at elevated temperatures.
Place the 28-QFN-EP on a 4-layer PCB with continuous ground plane directly beneath the package to provide both thermal dissipation and reference for analog signals. Route the 12-bit ADC analog inputs (RA0-RA5) on a different layer than switching digital signals, with ground isolation between analog and digital sections. Use 0.1 mm trace/space on the top layer for QFN fanout, and avoid routing traces under the exposed pad to prevent solder voids. Maintain at least 0.2 mm clearance between adjacent traces for high-volume manufacturability.
Common pitfalls: (1) Forgetting to solder the EP pad - this causes thermal failures and erratic ADC readings; (2) Enabling both JTAG and trace pins without configuring them properly, which locks out the device - always use MPLAB X to verify configuration bits; (3) Driving VDD below 2.0V causes Flash programming failures; (4) Failing to disable unused peripherals in PMD (Peripheral Module Disable) registers wastes active current; (5) Not configuring the FRC (Fast RC oscillator) PLL correctly can cause USB timing failures.
Keep the programming/debug connector (ICSP) within 50 mm of pins RB6 (ICEDATA) and RB7 (ICEDATA/PGEDx) for reliable in-circuit programming. Route the trace clock (RB6) and data (RB7) lines with matched length and 50 ohm characteristic impedance, and place a 4.7 kohm pull-up on MCLR for proper reset behavior. For low-EMI designs, group high-speed signals (SPI, UART) on adjacent pins to minimize loop area, and add a 10 ohm series resistor on clock lines to dampen ringing.
Compliance Information
RoHS compliant per Microchip product page (PIC32MM0064GPL028 family). Industrial -40C to +85C operating temperature, not AEC-Q100 qualified - for automotive applications use PIC32MM AEC-Q100 variants. Lead-free (Pb-free) reflow-compatible. REACH compliance per EU regulations.
