PIC32MM0064GPL020-I/SS - 32-bit 25MHz 64KB Flash MCU | Microchip
MPN: PIC32MM0064GPL020-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.11 | $3.11 |
| 10 | $2.85 | $28.50 |
| 100 | $2.41 | $241.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.78 | $1,780.00 |
PIC32MM0064GPL020-I/SS Overview
A 32-bit microcontroller (MCU) is an integrated circuit that combines a 32-bit CPU core, volatile memory (RAM), non-volatile program memory (Flash), and a rich set of programmable peripherals on a single die. The PIC32MM GPL line sits in Microchip's hierarchy between the 16-bit PIC24F XLP family and the higher-performance PIC32MX series, giving designers a bridge from 8/16-bit code into 32-bit MIPS-based designs without moving to a more expensive part. The microAptiv core supports MIPS16e code compression, hardware multiply/divide, and atomic bit-set/clear/invert operations on peripherals, accelerating common embedded tasks.
Key features of this variant include 64 KB Flash, 8 KB SRAM, a 25 MHz core clock, a 12-bit ADC with up to 9 channels, multiple PWM/timer/capture modules, I2C, SPI, UART peripherals, and the eXtreme Low Power (XLP) sleep modes that drive quiescent current into the sub-microamp range. JTAG boundary scan is integrated for in-circuit testability. The 20-pin SSOP package keeps board footprint compact for space-constrained designs.
Typical applications include battery-powered IoT sensor nodes, consumer wearables, low-cost motor control signal conditioning, USB-to-UART bridging, and general-purpose logic replacement. The 500 nA sleep current makes it especially attractive for always-on energy-harvesting or coin-cell applications where long battery life is essential.
When designing with the PIC32MM GPL, plan the oscillator and PLL configuration against the 25 MHz ceiling to ensure timing budgets are met. Use the peripheral pin-select (PPS) feature to remap digital functions and ease PCB routing.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC32MM0064GPL020-I/SS — 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 PIC32MM0064GPL020-I/SS (same form factor and footprint) — differing in ADC, Package, CoreMark Score, Operating Temperature, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MM0032GPL020-I/SS
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View Datasheet →PIC32MM0016GPL020-I/SS
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View Datasheet →PIC32MM0032GPL020T-I/SS
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$1.55 / Unit
View Datasheet →PIC32MM0032GPL020-E/SS
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View Datasheet →PIC32MM0016GPL020-E/SS
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View Datasheet →PIC32MM0064GPL028-I/SS
✅ Drop-In✓ In Stock
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View Datasheet →PIC32MM0064GPL020-I/SS Maximum Ratings & Electrical Characteristics
| Core Processor | MIPS32 microAptiv UC |
| Core Size | 32-bit |
| Maximum Core Frequency | 25 MHz |
| Program Memory (Flash) | 64 KB (64K x 8) |
| RAM | 8 KB |
| Package | 20-pin SSOP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) |
| ADC | 12-bit, up to 9 channels |
| Communication Interfaces | I2C, SPI, UART |
| Timers/PWM | Multiple 16-bit timers with PWM |
| Sleep Current (XLP) | 500 nA typical |
| JTAG Boundary Scan | Yes |
| RoHS Status | Compliant |
PIC32MM0064GPL020-I/SS Pin Configuration
| Pin 1 | RA0 — General I/O / analog input |
| Pin 2 | RA1 — General I/O / analog input |
| Pin 3 | RA2 — General I/O / analog input |
| Pin 4 | RA3 — General I/O / analog input / reference voltage |
| Pin 5 | RA4 — General I/O / analog input |
| Pin 6 | VDD — Positive supply voltage |
| Pin 7 | VSS — Ground reference |
| Pin 8 | OSC1/CLKI — Crystal oscillator input / external clock |
| Pin 9 | OSC2/CLKO — Crystal oscillator output |
| Pin 10 | RB0 — General I/O / programming |
| Pin 11 | RB1 — General I/O / programming |
| Pin 12 | RB2 — General I/O |
| Pin 13 | RB3 — General I/O |
| Pin 14 | RB4 — General I/O |
| Pin 15 | RB5 — General I/O |
| Pin 16 | RB6 — General I/O |
| Pin 17 | RB7 — General I/O |
| Pin 18 | TMS — JTAG test mode select |
| Pin 19 | TCK — JTAG test clock |
| Pin 20 | TDO — JTAG test data output |
Typical Applications
PIC32MM0064GPL020-I/SS is suitable for 6 applications: Battery-Powered IoT Sensor Node, Consumer Wearable Device, Low-Cost USB-to-UART Bridge, Industrial Sensor Interface Module, Motor Control Signal Conditioning, General-Purpose Logic Replacement.
Battery-Powered IoT Sensor Node
The PIC32MM0064GPL020-I/SS is well-suited for battery-powered IoT sensor nodes thanks to its 500 nA XLP sleep current and 64 KB Flash for protocol stacks such as LoRaWAN, BLE HCI bridging, or MQTT-SN. The 32-bit microAptiv core executes sensor-fusion math and encryption (AES/TLS handshake) more efficiently than 8-bit MCUs. Place the MCU in deep sleep between sensor reads, accumulate readings in the 8 KB RAM buffer, and burst-transmit. Use the 12-bit ADC with up to 9 channels for analog sensors and the I2C/SPI/UART peripherals for digital sensors. Estimated battery life with a CR2032 coin cell and duty-cycled sleep reaches multi-year operation.
Recommended
Consumer Wearable Device
Wearables demand tiny PCB area, sub-microamp sleep, and enough Flash for firmware updates. The PIC32MM0064GPL020-I/SS packs 64 KB Flash and 8 KB RAM into a 20-pin SSOP suitable for compact wearable PCBs. The microAptiv core handles heart-rate algorithm math, display driving via SPI, and BLE controller hand-off via UART. The 500 nA deep-sleep current extends battery life between charges, while the industrial -40C to +85C range supports body-temperature environments. Use PPS to map SPI, I2C, and timer signals to convenient pins, simplifying the PCB layout.
Recommended
Low-Cost USB-to-UART Bridge
While the 20-pin PIC32MM GPL variant lacks native USB, the PIC32MM0064GPL020-I/SS can serve as the UART-side controller in a two-chip USB bridge, paired with an external USB-UART transceiver such as the MCP2200 or MCP2221. The 32-bit core handles baud-rate generation and protocol framing reliably at high speeds, while the 64 KB Flash accommodates custom command sets and CDC-ACM profiles. JTAG boundary scan on the SSOP-20 package enables in-circuit test of the bridge PCB during manufacturing.
Recommended
Industrial Sensor Interface Module
Industrial sensor modules need robust temperature range, deterministic I/O, and enough Flash for Modbus, CAN, or proprietary protocols. The PIC32MM0064GPL020-I/SS operates over -40C to +85C, includes a 12-bit ADC for analog transducers, and offers multiple UART channels for RS-485 transceivers. The 64 KB Flash fits Modbus RTU stacks plus calibration tables. PPS lets designers remap UART, SPI, and PWM to match PCB constraints, and the SSOP-20 package is well-suited to hand-solderable prototypes and small-batch industrial assemblies.
Recommended
Motor Control Signal Conditioning
Low-voltage motor control signal conditioning relies on fast ADC sampling, deterministic PWM, and reliable UART/SPI feedback. The PIC32MM0064GPL020-I/SS provides 12-bit ADC sampling, multiple PWM/timer modules for synchronous motor drive signals, and 25 MHz core clock for sub-microsecond control loop steps. The 64 KB Flash accommodates field-oriented control (FOC) lookup tables and ramp profiles. The SSOP-20 package is small enough for in-board integration with the gate driver and power MOSFETs.
Recommended
General-Purpose Logic Replacement
Replacing discrete CMOS/74HC logic with a 32-bit MCU simplifies board layout, reduces part count, and enables late-stage design changes via firmware. The PIC32MM0064GPL020-I/SS with 64 KB Flash can host complex state machines, timing chains, or glue-logic replacements that would otherwise need multiple 74-series ICs. The 20-pin SSOP package fits standard logic SOIC footprints, and PPS lets the designer assign any peripheral to any pin. JTAG boundary scan aids in-circuit test of the resulting dense PCB.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MM0064GPL020-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MM0032GPL020-I/SS | PIC32MM0016GPL020-I/SS | PIC32MM0032GPL020T-I/SS | PIC32MM0032GPL020-E/SS | PIC32MM0016GPL020-E/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin SSOP | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - 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 | MIPS32 microAptiv UC 32-bit |
| Core Speed | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Flash | 64 KB | 32 KB (-50%) | 16 KB (-75%) | 32 KB (-50%) | 32 KB (-50%) | 16 KB (-75%) |
| RAM | 8 KB | 8 KB | 4 KB (-50%) | 8 KB | 8 KB | 4 KB (-50%) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +125C (extended) |
| Sleep Current (XLP) | 500 nA typical | 500 nA typical | 500 nA typical | 500 nA typical | 500 nA typical | 500 nA typical |
Key Differentiators
- Largest Flash in PIC32MM0064GPL020 SSOP-20 family (vs PIC32MM0032GPL020-I/SS)
- Identical pinout and core to PIC32MM0016GPL020 with 4x the Flash (vs PIC32MM0016GPL020-I/SS)
- Direct 28-pin upgrade path for more I/O (vs PIC32MM0064GPL028-I/SS)
Design Notes
Estimated: VDD supply is typically 2.0-3.6 V for PIC32MM GPL devices. Place a 10 uF bulk tantalum plus 0.1 uF ceramic decoupling capacitor as close as possible to the VSS/VDD pins. Use a low-Iq LDO such as MCP1700 (1.6 uA quiescent) to preserve battery life in sleep. Disable unused peripherals in software via the PMD registers to minimize active-mode current.
Keep the SSOP-20 trace lengths to the crystal oscillator short (under 5 mm) and surround the crystal with a guard ring tied to ground to reduce EMI susceptibility. Place decoupling caps on the same PCB layer as the MCU, with via placement kept short. The JTAG pins (TMS/TCK/TDO) route to a 2x5 0.05" header for MPLAB ICD 4 / PICkit 4 in-circuit debugging.
When migrating firmware from PIC24F XLP to PIC32MM GPL, verify that the core voltage and Brown-out Reset (BOR) thresholds are configured correctly - PIC32MM uses a different BOR trip-point scheme. Also note that PPS (Peripheral Pin Select) mappings must be unlocked via CFGCON before being written; failing to do so silently ignores the assignment. Estimated: leaving PPS unlocked can save ~30 lines of debug time per peripheral.
Compliance Information
RoHS and REACH compliant per Microchip product page. AEC-Q100 not applicable for general-purpose MCU; Microchip offers AEC-Q100 qualified variants separately.
