PIC32MM0032GPL020-E/SS - 32-bit 25MHz MCU 32KB Flash | Microchip
MPN: PIC32MM0032GPL020-E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.65 | $1.65 |
| 10 | $1.49 | $14.90 |
| 100 | $1.25 | $125.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.89 | $890.00 |
PIC32MM0032GPL020-E/SS Overview
What is a low-power 32-bit microcontroller? A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory (Flash), data memory (SRAM), and peripherals. The PIC32MM family specifically combines the 32-bit MIPS microAptiv core with Microchip's Core Independent Peripherals (CIPs), enabling autonomous peripheral operation without CPU intervention. Within the broader taxonomy, the PIC32MM GPL sits as a low-power, low-pin-count member of the PIC32 family, below higher-pin-count PIC32MX and PIC32MK devices, ideal for migrating PIC24 designs to 32-bit performance at minimal cost and power.
Key features of the PIC32MM0032GPL020-E/SS include 2 UART modules, 2 SPI modules, 3 timer/counter modules, 8 PWM channels, 2 comparators, a Real-Time Clock and Calendar (RTCC), and a Watchdog Timer (WDT). It also integrates core-independent peripherals such as Configurable Logic Cells (CLC), Multiple Capture/Compare/PWM (MCCP/SCCP), and a 12-bit 1 Msps Analog-to-Digital Converter (ADC) with up to 11 channels depending on package variant.
Typical applications include IoT sensor nodes, low-power wireless modules, wearables, battery-powered consumer electronics, industrial sensor hubs, and home automation controllers. Designers choose the PIC32MM GPL line when they need 32-bit performance and Microchip's CIP ecosystem at a sub-$1 price point with low power.
Design consideration: The -E/SS suffix denotes the Extended temperature grade (-40C to +125C) in a 20-pin SSOP package, which is pin-compatible with the 20-pin SSOP PIC24/PIC32MX footprint-based designs. The "I" grade (-40C to +85C) is a common alternative for commercial applications.
This page synthesizes distributor pricing, verified drop-in alternatives from the Microchip PIC32MM family, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC32MM0032GPL020-E/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 PIC32MM0032GPL020-E/SS (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Operating Voltage Range, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MM0032GPL020T-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MM0032GPL020-I/SS
✅ Drop-In✓ In Stock
$1.45 / Unit
View Datasheet →PIC32MM0032GPL020T-I/SS
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC32MM0016GPL020-I/SS
✅ Drop-In✓ In Stock
$1.1 / Unit
View Datasheet →PIC32MM0016GPL020-E/SS
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC32MM0032GPL020-E/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 microAptiv UC |
| CPU Core | 32-bit RISC |
| Maximum CPU Speed | 25 MHz |
| CoreMark Score | 79 CoreMark at 25 MHz |
| Instruction Set | microMIPS / MIPS32 |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Data Memory (SRAM) | 8 KB |
| Operating Voltage | 2.0 V to 3.6 V |
| Operating Temperature | -40 C to +125 C (Extended grade) |
| Package | 20-pin SSOP |
| UART Modules | 2 |
| SPI Modules | 2 |
| Timers | 3 |
| PWM Channels | 8 |
| Comparators | 2 |
| ADC | 12-bit, 1 Msps |
| RTCC | Yes (Real-Time Clock and Calendar) |
| Watchdog Timer | Yes |
| Sleep Current | 500 nA (typical, per Microchip family claim) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC32MM0032GPL020-E/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, also programming voltage input |
| Pin 2 | RA0 — Digital I/O / analog input |
| Pin 3 | RA1 — Digital I/O / analog input |
| Pin 4 | RB0 — Digital I/O / programming |
| Pin 5 | RB1 — Digital I/O |
| Pin 6 | RB2 — Digital I/O |
| Pin 7 | RB3 — Digital I/O |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RC0 — Digital I/O |
| Pin 10 | RC1 — Digital I/O |
| Pin 11 | RC2 — Digital I/O |
| Pin 12 | RC3 — Digital I/O |
| Pin 13 | RC4 — Digital I/O |
| Pin 14 | OSCI — Oscillator input or digital I/O |
| Pin 15 | OSCO — Oscillator output or digital I/O |
| Pin 16 | RB4 — Digital I/O |
| Pin 17 | RB5 — Digital I/O |
| Pin 18 | RB6 — Digital I/O / programming clock |
| Pin 19 | RB7 — Digital I/O / programming data |
| Pin 20 | VDD — Positive supply input 2.0 V to 3.6 V |
Typical Applications
PIC32MM0032GPL020-E/SS is suitable for 6 applications: Battery-Powered IoT Sensor Node, Wearable Health and Fitness Devices, Industrial Sensor Hubs and Edge Controllers, Smart Home and Building Automation, Portable Consumer Electronics, Automotive Sub-System Controllers.
Battery-Powered IoT Sensor Node
The PIC32MM0032GPL020-E/SS is engineered for battery-powered IoT sensor nodes where its 500 nA sleep current extends coin-cell or 2xAA battery life to multi-year levels. Its 25 MHz MIPS32 microAptiv core delivers 79 CoreMark - sufficient for BLE/LoRa/Zigbee protocol stacks, while the 32 KB Flash ramps up to typical small-footprint stacks. The 12-bit 1 Msps ADC samples temperature, humidity, and analog sensors without CPU wake. Combined with Microchip's Configurable Logic Cells (CLC) for autonomous event handling, this part enables designs that wake only on sensor threshold crossings.
Recommended
Wearable Health and Fitness Devices
For wearables including fitness bands, smart watches, and medical patches, the PIC32MM0032GPL020-E/SS provides the right balance of 32-bit performance and extreme low power. The 500 nA sleep mode and 2.0 V minimum supply enable operation from small Li-Po or coin cells, while 8 KB SRAM supports on-device heart-rate algorithm buffers and display update logic. The 8 PWM channels drive haptic feedback motors and LED indicators; the 12-bit ADC reads photoplethysmography (PPG) sensors with 1 Msps throughput. Extended -40C to +125C temperature grade suits body-worn applications with thermal spikes.
Recommended
Industrial Sensor Hubs and Edge Controllers
The PIC32MM0032GPL020-E/SS Extended temperature rating supports industrial edge controllers mounted in cabinets or near motors where ambient temperatures exceed 85C. Two UART modules bridge to RS-485/RS-232 sensor networks, while two SPI channels interface to industrial MEMS sensors, ADC front-ends, or display controllers. The RTCC provides time-stamped event logging essential for predictive maintenance. The 8 KB SRAM buffers Modbus/IO-Link frame assembly without CPU-intensive DMA, and the 32 KB Flash holds firmware-upgrade bootloaders for field-serviceable deployments.
Recommended
Smart Home and Building Automation
In smart thermostats, lighting controllers, and HVAC actuators, the PIC32MM0032GPL020-E/SS serves as the application processor managing user interfaces, sensor fusion, and wireless co-processor communications. The 8 PWM channels drive LED dimmers and small motor controls directly, while the 12-bit ADC reads temperature, light, and motion sensors. The 32-bit microAptiv core runs Zigbee/Wi-Fi co-processor command sets with sub-100us interrupt latency, and the 32 KB Flash stores ZCL (Zigbee Cluster Library) attribute tables and OTA upgrade logic for field maintenance.
Recommended
Portable Consumer Electronics
Portable consumer devices including Bluetooth speakers, e-readers, and remote controls benefit from the PIC32MM0032GPL020-E/SS's combination of 32-bit performance and ultra-low sleep current. The 2.0-3.6 V supply range accepts single-cell Li-ion or 2xAA alkaline batteries directly. Three timer modules support IR remote protocols, while two UART/SPI interfaces manage wireless audio modules and battery fuel gauges. The 79 CoreMark score ensures responsive UI handling for OLED/LCD display refresh without taxing the host processor.
Recommended
Automotive Sub-System Controllers
For non-safety automotive applications including interior lighting controllers, seat control modules, and body electronics sub-systems, the PIC32MM0032GPL020-E/SS Extended temperature grade (-40C to +125C) handles cabin thermal extremes. The 2 UART modules interface to LIN/CAN bus transceivers, and the 8 PWM channels drive LED matrices or small DC motors for seat position. The 32-bit MIPS core processes OBD-II diagnostic queries and firmware-update commands. Designers should pair this part with external CAN/LIN transceivers for production deployment.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MM0032GPL020-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MM0032GPL020T-E/SS | PIC32MM0032GPL020-I/SS | PIC32MM0016GPL020-I/SS | PIC32MM0016GPL020-E/SS |
|---|---|---|---|---|---|
| Package | 20-pin SSOP | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 16 KB | 16 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Max CPU Speed | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Temperature Grade | Extended -40C to +125C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C |
| Packaging Format | Tube | Tape-and-Reel | Tube | Tube | Tube |
| 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 |
| ADC | 12-bit, 1 Msps | 12-bit, 1 Msps | 12-bit, 1 Msps | 12-bit, 1 Msps | 12-bit, 1 Msps |
Key Differentiators
- Extended temperature grade for harsh environments (vs PIC32MM0032GPL020-I/SS)
- 32 KB Flash vs 16 KB alternative (vs PIC32MM0016GPL020-E/SS)
- Pin-compatible drop-in family for design flexibility (vs PIC32MM0016GPL028-I/SS)
Design Notes
The PIC32MM0032GPL020-E/SS achieves 500 nA typical sleep current in Deep Sleep mode with RTCC active, per Microchip's PIC32MM GPL family datasheet. To maximize battery life, gate unused peripherals using the PMD (Peripheral Module Disable) registers before entering Deep Sleep. The on-board Low-Power Brown-Out Reset (LPBOR) and High-Power BOR (BOR) should be configured for the application's voltage range. Add a 0.1 uF ceramic decoupling capacitor close to each VDD pin (pin 20) plus a 4.7 uF bulk cap on the supply rail.
The PIC32MM0032GPL020-E/SS SSOP-20 package has a thermal resistance theta_JA of approximately 85 C/W (estimated per typical SSOP-20 packages). At maximum 25 MHz core frequency with all peripherals active, total power dissipation is below 50 mW so thermal management is generally not critical. However, in enclosed industrial installations above 85C ambient, the Extended -E/SS temperature grade must be selected; the -I/SS Industrial grade is only rated to +85C. Provide adequate copper pour on VDD and VSS planes to spread heat.
For 20-pin SSOP layout, route signals on a 0.65 mm pitch grid with the exposed pad underneath the SSOP body grounded to the VSS plane for EMI shielding. Place a 0.1 uF decoupling capacitor within 5 mm of pin 20 (VDD) and a 1 uF bulk capacitor on the same rail. The MCLR pin (pin 1) requires a 10 kOhm pull-up to VDD and a 100 nF cap to ground for noise immunity during programming. Crystal traces for OSCI/OSCO (pins 14-15) must be kept short and symmetric.
Common pitfalls include failing to enable the Peripheral Pin Select (PPS) for remappable digital functions, which leaves pins floating in their default state. The PIC32MM0032GPL020-E/SS uses PPS to map UART, SPI, and PWM signals to physical pins - this must be configured in initialization code. Additionally, programming voltage must be applied to MCLR (pin 1) for ICSP; ensure no load on MCLR during programming. Finally, the device uses microMIPS instruction set by default - confirm compiler settings match the target architecture.
Compliance Information
RoHS and REACH compliant per Microchip product page. Lead-free and halogen-free packaging. AEC-Q100 not qualified - for AEC-Q100 automotive designs use Microchip's automotive-grade PIC32MK or dsPIC33 families.
