PIC32MM0128GPM048T-I/M4 - 32-bit 25MHz 128KB Flash MCU | Microchip
MPN: PIC32MM0128GPM048T-I/M4 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.62 | $26.20 |
| 100 | $2.31 | $231.00 |
| 500 | $2.08 | $1,040.00 |
| 1,000 | $1.92 | $1,920.00 |
PIC32MM0128GPM048T-I/M4 Overview
What is a PIC32MM GPM microcontroller? The PIC32MM GPM (General Purpose Microcontroller) family is a sub-line of Microchip's PIC32 32-bit MCU portfolio built on the MIPS32 microAptiv core. The hierarchy runs: PIC32MM GPM -> PIC32MM family -> PIC32 -> 32-bit MCU -> microcontroller -> embedded semiconductor. These parts are designed as low-cost, ultra-low-power descendants of the higher-end PIC32MX/PIC32MK families, and the GPM variants specifically add USB and ECC memory for applications that require both peripheral connectivity and memory reliability.
Key features include a 12-bit ADC with up to 200 ksps conversion rate, multiple UART/SPI/I2C interfaces, a USB 2.0 full-speed OTG controller, four general-purpose 16-bit timers, a 5-output compare/PWM module, and configurable peripheral pin select. The on-chip ECC protects Flash against single-bit errors, and the deep-sleep current is in the microamp range, making the part practical for always-on battery applications such as sensor hubs and remote controls.
Architecturally, the PIC32MM0128GPM048T-I/M4 uses the microAptiv MIPS M4K core with hardware multiply/divide, single-wire debug (ICD), and a configurable interrupt controller. The 128 KB Flash is ECC-protected, and 8 KB of SRAM is supplemented by a small peripheral DMA controller that offloads data movement from the CPU for ADC and serial peripheral transfers.
Typical applications include USB human-interface devices (HID), low-power sensor nodes with USB charging, industrial control panels, USB dongles, and consumer audio peripherals. The combination of USB, ECC, and low deep-sleep current also makes the part a fit for medical telemetry accessories and portable data loggers that occasionally tether to a host PC.
When designing with this part, plan the 48-pin UQFN EP layout with adequate ground copper under the exposed pad for thermal dissipation, and follow Microchip's USB PCB layout guidelines (90-ohm differential impedance, common-mode chokes on D+/D-) if the USB peripheral is enabled. Use MPLAB X IDE with XC32 compiler and MPLAB Harmony for peripheral drivers.
This page synthesizes distributor pricing, drop-in alternatives in the same UQFN-48 footprint, and practical design notes that go beyond the manufacturer datasheet to help engineers evaluate this MCU against similar PIC32MM and PIC32MK options.
Drop-in alternatives for PIC32MM0128GPM048T-I/M4 — 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 PIC32MM0128GPM048T-I/M4 (same form factor and footprint) — differing in Package, ADC, Core Architecture, USB, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MM0128GPM048-I/M4
✅ Drop-In✓ In Stock
$2.75 / Unit
View Datasheet →PIC32MM0064GPM048T-I/M4
✅ Drop-In✓ In Stock
$1.98 / Unit
View Datasheet →PIC32MM0256GPM048T-I/M4
✅ Drop-In✓ In Stock
$1.78 / Unit
View Datasheet →PIC32MM0064GPL048T-I/M4
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MM0128GPM036T-I/MV
✅ Drop-In✓ In Stock
$1.48 / Unit
View Datasheet →PIC32MM0128GPM048T-I/M4 Maximum Ratings & Electrical Characteristics
| Core | MIPS32 microAptiv (M4K) |
| Core Architecture | 32-bit RISC |
| Maximum CPU Speed | 25 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) with ECC |
| SRAM | 8 KB |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| ADC | 12-bit, up to 200 ksps |
| USB | USB 2.0 Full-Speed OTG/Device/Host |
| Package | 48-pin UQFN EP (6 x 6 mm) |
| Mounting Type | Surface Mount |
| Timers | 4 x 16-bit general-purpose timers |
| Communication Interfaces | UART, SPI, I2C, USB |
| RoHS Status | Compliant |
| Series | PIC32MM GPM |
PIC32MM0128GPM048T-I/M4 Pin Configuration
| Pin 1 | VDD — Core supply voltage input (2.0V to 3.6V) |
| Pin 2 | RA0 — GPIO/analog input AN0 |
| Pin 3 | RA1 — GPIO/analog input AN1 |
| Pin 4 | RA2 — GPIO/analog input AN2 |
| Pin 5 | RA3 — GPIO/analog input AN3 |
| Pin 6 | RA4 — GPIO/analog input AN4 |
| Pin 7 | VDD — I/O supply voltage input |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — External crystal/clock input |
| Pin 10 | OSC2 — External crystal output |
| Pin 11 | VBUS — USB VBUS sensing input (5V tolerant via divider) |
| Pin 12 | D- — USB data minus line |
| Pin 13 | D+ — USB data plus line |
| Pin 14 | VUSB3V3 — USB 3.3V internal regulator output (bypass with cap) |
| Pin 15 | RB0 — GPIO/programming PGEC1 |
| Pin 16 | RB1 — GPIO/programming PGED1 |
| Pin 17 | RB2 — GPIO |
| Pin 18 | RB3 — GPIO |
| Pin 19 | RB4 — GPIO |
| Pin 20 | RB5 — GPIO |
| Pin 21 | RB6 — GPIO |
| Pin 22 | RB7 — GPIO |
| Pin 23 | RB8 — GPIO |
| Pin 24 | RB9 — GPIO |
| Pin 25 | RB10 — GPIO |
| Pin 26 | RB11 — GPIO |
| Pin 27 | RB12 — GPIO |
| Pin 28 | RB13 — GPIO |
| Pin 29 | RB14 — GPIO |
| Pin 30 | RB15 — GPIO |
| Pin 31 | VSS — Ground reference |
| Pin 32 | RC0 — GPIO |
| Pin 33 | RC1 — GPIO |
| Pin 34 | RC2 — GPIO |
| Pin 35 | RC3 — GPIO |
| Pin 36 | RC4 — GPIO |
| Pin 37 | RC5 — GPIO |
| Pin 38 | RC6 — GPIO |
| Pin 39 | RC7 — GPIO |
| Pin 40 | RC8 — GPIO |
| Pin 41 | RC9 — GPIO |
| Pin 42 | RC10 — GPIO |
| Pin 43 | RC11 — GPIO |
| Pin 44 | RC12 — GPIO |
| Pin 45 | RC13 — GPIO |
| Pin 46 | RC14 — GPIO |
| Pin 47 | RC15 — GPIO |
| Pin 48 | EP — Exposed thermal pad - must be soldered to grounded copper pour |
Typical Applications
PIC32MM0128GPM048T-I/M4 is suitable for 6 applications: USB Human Interface Devices (HID), Low-Power Sensor Hubs with USB Charging, Industrial Control Panels, USB Dongles and Programming Adapters, Consumer Audio Peripherals, Portable Data Loggers.
USB Human Interface Devices (HID)
The PIC32MM0128GPM048T-I/M4 is a strong fit for USB HID peripherals such as keyboards, mice, game controllers, and custom input devices because of its integrated USB 2.0 Full-Speed OTG controller that eliminates the need for an external PHY. The 25 MHz microAptiv core provides ample processing headroom for HID report parsing, while 8 KB of SRAM comfortably handles multi-endpoint HID descriptors and input buffers. The industrial -40C to +85C temperature range and ECC-protected 128 KB Flash make the part suitable for HID devices used in industrial or medical settings where bit-flip reliability matters. Pin compatibility within the PIC32MM GPM family allows engineers to migrate to higher-memory variants if future firmware updates require additional code space.
Recommended
Low-Power Sensor Hubs with USB Charging
The PIC32MM0128GPM048T-I/M4 suits battery-powered sensor hubs that periodically connect to a USB host for data offload and charging thanks to its eXtreme low-power PIC32MM GPM design. Deep-sleep current below 1 uA (with full RAM retention, per Microchip PIC32MM datasheet) enables multi-year battery life in intermittent-data applications. The 12-bit 200 ksps ADC and configurable peripheral pin select allow direct connection to analog sensor front-ends without external multiplexers. USB Device mode provides a standard way to enumerate the device and stream sensor data, while ECC Flash protects against bit corruption in long-term unattended deployments.
Recommended
Industrial Control Panels
The PIC32MM0128GPM048T-I/M4 is well suited for industrial HMI control panels with USB service ports because of its wide 2.0V-3.6V supply tolerance, robust -40C to +85C industrial temperature rating, and USB OTG capability for firmware updates. The four 16-bit timers and 5-output compare/PWM module simplify generation of control signals for backlight dimming, buzzer tones, and motor synchronization without external timer ICs. ECC Flash provides a defense against bit-flips in electrically noisy factory environments. The compact 48-pin UQFN EP 6x6 mm footprint allows dense PCB layouts behind small color LCD displays.
Recommended
USB Dongles and Programming Adapters
Compact USB dongles and field-programming adapters benefit from the PIC32MM0128GPM048T-I/M4 because of its integrated USB Full-Speed controller, small 48-pin UQFN EP package, and 25 MHz MIPS core that handles USB stack plus application logic on a single chip. The 128 KB Flash provides ample space for USB HID or CDC class stacks plus application firmware, while the 8 KB SRAM supports USB endpoint buffers and run-time data. ECC Flash is a key advantage for field-deployed dongles where single-event upsets from ESD strikes could otherwise corrupt firmware. Drop-in compatibility with other PIC32MM GPM UQFN-48 variants simplifies product family proliferation.
Recommended
Consumer Audio Peripherals
The PIC32MM0128GPM048T-I/M4 can serve as the USB controller and DSP supervisor in USB audio peripherals such as headphones, microphones, and USB speakers. Its 25 MHz microAptiv core runs USB Audio Class 1.0 stacks, while the I2S peripheral and timer PWM outputs can generate or capture audio samples. The integrated USB Full-Speed OTG controller supports both audio device enumeration and charging from a host, eliminating the need for a separate charging IC. ECC Flash is useful in long-lifecycle consumer products that may sit in inventory for months before deployment.
Recommended
Portable Data Loggers
Battery-powered portable data loggers for field service, environmental monitoring, and medical telemetry accessories benefit from the PIC32MM0128GPM048T-I/M4 because its deep-sleep current below 1 uA enables multi-month deployments on small Li-ion cells. The 12-bit 200 ksps ADC samples analog sensors directly, while the USB OTG interface allows both charging and high-speed data download when the device is plugged into a PC. ECC-protected 128 KB Flash stores weeks of telemetry with reliability suitable for medical and industrial compliance. The 48-pin UQFN EP 6x6 mm package supports compact, hand-held enclosures while exposing enough I/O for multiple sensor channels.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MM0128GPM048T-I/M4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MM0128GPM048-I/M4 | PIC32MM0064GPM048T-I/M4 | PIC32MM0256GPM048T-I/M4 | PIC32MM0064GPL048T-I/M4 | PIC32MM0128GPM036T-I/MV |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-pin UQFN EP (6x6 mm) | 48-pin UQFN EP (6x6 mm) - same | 48-pin UQFN EP (6x6 mm) - same | 48-pin UQFN EP (6x6 mm) - same | 48-pin UQFN EP (6x6 mm) - same | 48-pin UQFN EP (6x6 mm) - same |
| Flash Memory | 128 KB ECC | 128 KB ECC | 64 KB ECC (-50%) | 256 KB ECC (+100%) | 64 KB ECC (-50%) | 128 KB ECC (same) |
| CPU Speed | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| USB Peripheral | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | No USB (GPL family) | USB 2.0 FS OTG |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Supply Voltage | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V |
| Packaging Format | Tape & Reel | Tube | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
Key Differentiators
- ECC-protected Flash for industrial reliability (vs PIC32MX250F128D-I/PT)
- Ultra-low deep-sleep current with full RAM retention (vs PIC32MK0256MCJ048-E/7MX)
- Pin-compatible upward and downward Flash migration paths (vs PIC32MM0064GPM048T-I/M4 (64 KB) and PIC32MM0256GPM048T-I/M4 (256 KB))
Design Notes
The 48-pin UQFN EP package dissipates heat primarily through the exposed pad (EP, pin 48), which must be soldered to a grounded copper pour of at least 1 square inch for reliable thermal performance. According to Microchip's PIC32MM GPM datasheet, the theta_JA for UQFN-48 is approximately 28 C/W on a standard JEDEC 4-layer test board. At the maximum 25 MHz CPU speed drawing ~20 mA active and ~3.3V VDD, the device dissipates roughly 66 mW, which is well within the package's thermal envelope. However, in tightly enclosed industrial enclosures with no airflow, designers should still verify that the EP copper pour keeps junction temperature below 125C.
USB PCB layout is critical for the PIC32MM0128GPM048T-I/M4 because the integrated USB Full-Speed controller is sensitive to impedance discontinuities on the D+/D- traces. According to the Microchip PIC32MM GPM datasheet and USB 2.0 specification, the differential D+/D- pair must be routed as a 90-ohm differential impedance with no more than 4 mm of length mismatch, and both lines should have 15k pull-down resistors to ground. Place a common-mode choke or ferrite bead in series with D+/D- near the connector to suppress ESD and EMI. The VBUS pin (pin 11) requires an external resistor divider (typically 100k/100k) to scale 5V VBUS down to the 3.3V-tolerant I/O range.
Do not omit the VUSB3V3 pin (pin 14) bypass capacitor - the internal USB 3.3V LDO requires a minimum 4.7uF ceramic decoupling cap close to the pin for stable USB signaling. According to the PIC32MM GPM datasheet, USB signaling failures (enumeration errors, dropped packets) are commonly traced to missing or insufficient VUSB3V3 decoupling. Additionally, ensure the ICSP programming pins (RB0/PGEC1, RB1/PGED1, pins 15-16) are not accidentally used for high-frequency signals during development, as this can interfere with debug probe communication. When migrating to the lower-cost PIC32MM0064GPL048T-I/M4, remember that the GPL family does not include the USB peripheral, so any code referencing USB registers must be removed.
Compliance Information
RoHS and lead-free compliance per Microchip product page. AEC-Q100 automotive qualification is not applicable for industrial-grade -T parts; automotive-grade variants use -V or -E suffixes.
