PIC32MM0256GPM064-E/MR - 32-bit 25MHz 256KB Flash MCU | Microchip
N.º da peça: PIC32MM0256GPM064-E/MR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.1 | $4,10 |
| 10 | $3.78 | $37,80 |
| 100 | $3.32 | $332,00 |
| 500 | $2.95 | $1.475,00 |
| 1.000 | $2.62 | $2.620,00 |
PIC32MM0256GPM064-E/MR Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals such as timers, ADC, communication interfaces (UART, SPI, I2C), and I/O pins. The PIC32MM family is positioned in the hierarchy: 32-bit MCU -> MIPS32 microAptiv core -> PIC32 family -> PIC32MM GPM family -> Microchip 32-bit microcontrollers. MCUs execute embedded firmware to sense, control, and communicate in real time, distinguishing them from microprocessors which require external memory and peripherals.
Key features of the PIC32MM0256GPM064-E/MR include 256 KB Flash with Error-Correcting Code (ECC) for high-reliability applications, 32 KB SRAM, 52 general-purpose I/O pins, a 12-bit ADC with up to 200 ksps, multiple PWM/timer modules, I2C/SPI/UART peripherals, USB 2.0 full-speed device/host/OTG, and a Real-Time Clock Calendar (RTCC). The part ships in the extended (-40C to +125C) temperature grade designated by the "-E" suffix and is offered in tube packaging ("MR" = QFN).
Architecturally, the PIC32MM0256GPM064-E/MR leverages the MIPS32 microAptiv UC core with 16 KB instruction cache and a single-cycle 32x32 hardware multiplier, delivering high code-density performance per MHz. Hardware ECC on Flash reduces soft-error-induced failures in long-lifecycle deployments, and the integrated USB PHY eliminates external transceiver BOM. The 64-pin QFN-EP provides a low-thermal-resistance path for hot-spot dissipation during peak USB-driven loads.
Typical applications include USB-enabled consumer peripherals, low-power IoT sensor nodes with USB debugging, industrial HMI panels, battery-powered data loggers with ECC, USB barcode/RFID readers, and embedded control modules with safety-critical firmware. The combination of XLP sleep currents, USB, and ECC Flash makes the part attractive for medical accessories and instrumentation as well.
When designing with this MCU, ensure the exposed pad (EP) of the QFN package is soldered to a sufficiently large copper pour to meet thermal and electrical ground requirements. For USB applications, follow the Microchip ANs on USB PCB layout to maintain 90-ohm differential impedance on D+/D-.
This page synthesizes Microchip distributor pricing, same-brand drop-in variants, and practical design guidance not found in the datasheet alone.
Alternativas drop-in para PIC32MM0256GPM064-E/MR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC32MM0256GPM064-E/MR (mesmo formato e footprint) — diferindo em ADC, Package, Communication Interfaces, Operating Temperature, Program Memory (Flash).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC32MM0256GPM064-I/MR
✅ Drop-In✓ Em estoque
$2.45 / unidade
Ver ficha técnica →PIC32MM0256GPM064T-I/MR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC32MM0128GPM064T-I/MR
✅ Drop-In✓ Em estoque
$1.74 / unidade
Ver ficha técnica →PIC32MM0256GPM064-E/MR Classificações máximas e características elétricas
| Core | MIPS32 microAptiv UC |
| Core Size | 32-bit, Single Core |
| Maximum CPU Speed | 25 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| SRAM | 32 KB |
| Flash ECC | Yes (hardware ECC) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Temperatura de operação | -40C to +125C (Extended, "-E") |
| Encapsulamento | 64-pin QFN-EP, 9x9 mm ("MR") |
| I/O Pins | 52 |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| ADC | 12-bit, up to 200 ksps |
| Communication Interfaces | UART, SPI, I2C, USB |
| Timers/PWM | Multiple 16-bit timers and PWM outputs |
| RTCC | Yes (Real-Time Clock Calendar) |
| Tipo de montagem | Surface Mount |
| Packaging | Tube ("MR" suffix) |
| Status RoHS | Compliant |
Configuração de pinos do PIC32MM0256GPM064-E/MR
| Pino 1 | RB0 — General purpose I/O |
| Pino 2 | RB1 — General purpose I/O |
| Pino 3 | RB2 — General purpose I/O |
| Pino 4 | RB3 — General purpose I/O |
| Pino 5 | RB4 — General purpose I/O |
| Pino 6 | RB5 — General purpose I/O |
| Pino 7 | RB6 — General purpose I/O |
| Pino 8 | RB7 — General purpose I/O |
| Pino 9 | VSS — Ground reference |
| Pino 10 | VBAT — RTCC battery supply |
| Pino 11 | RA0 — General purpose I/O |
| Pino 12 | RA1 — General purpose I/O |
| Pino 13 | RA2 — General purpose I/O |
| Pino 14 | RA3 — General purpose I/O |
| Pino 15 | RA4 — General purpose I/O |
| Pino 16 | RA5 — General purpose I/O |
| Pino 17 | RA6 — General purpose I/O |
| Pino 18 | RA7 — General purpose I/O |
| Pino 19 | VSS — Ground reference |
| Pino 20 | AVDD — Analog supply |
| Pino 21 | AVSS — Analog ground |
| Pino 22 | RA9 — General purpose I/O |
| Pino 23 | RA10 — General purpose I/O |
| Pino 24 | RC0 — General purpose I/O |
| Pino 25 | RC1 — General purpose I/O |
| Pino 26 | RC2 — General purpose I/O |
| Pino 27 | RC3 — General purpose I/O |
| Pino 28 | RC4 — General purpose I/O |
| Pino 29 | RC5 — General purpose I/O |
| Pino 30 | RC6 — General purpose I/O |
| Pino 31 | RC7 — General purpose I/O |
| Pino 32 | RC8 — General purpose I/O |
| Pino 33 | RC9 — General purpose I/O |
| Pino 34 | VSS — Ground reference |
| Pino 35 | RC10 — General purpose I/O |
| Pino 36 | RC11 — General purpose I/O |
| Pino 37 | RC12 — General purpose I/O |
| Pino 38 | RC13 — General purpose I/O |
| Pino 39 | RC14 — General purpose I/O |
| Pino 40 | RC15 — General purpose I/O |
| Pino 41 | VSS — Ground reference |
| Pino 42 | RD0 — General purpose I/O |
| Pino 43 | RD1 — General purpose I/O |
| Pino 44 | RD2 — General purpose I/O |
| Pino 45 | RD3 — General purpose I/O |
| Pino 46 | RD4 — General purpose I/O |
| Pino 47 | RD5 — General purpose I/O |
| Pino 48 | RD6 — General purpose I/O |
| Pino 49 | RD7 — General purpose I/O |
| Pino 50 | RD8 — General purpose I/O |
| Pino 51 | RD9 — General purpose I/O |
| Pino 52 | RD10 — General purpose I/O |
| Pino 53 | RD11 — General purpose I/O |
| Pino 54 | VSS — Ground reference |
| Pino 55 | D+ — USB D+ data line |
| Pino 56 | D- — USB D- data line |
| Pino 57 | VBUS — USB VBUS sense |
| Pino 58 | VUSB — USB transceiver supply |
| Pino 59 | RD12 — General purpose I/O |
| Pino 60 | RD13 — General purpose I/O |
| Pino 61 | RD14 — General purpose I/O |
| Pino 62 | RD15 — General purpose I/O |
| Pino 63 | MCLR — Master clear (reset) |
| Pino 64 | AVDD — Analog supply |
| Pino EP | EP — Exposed thermal/ground pad |
Aplicações típicas
PIC32MM0256GPM064-E/MR é adequado para 8 aplicaçãos: USB-Enabled Consumer Peripherals, Low-Power IoT Sensor Nodes, Industrial HMI Control Panels, Battery-Powered Data Loggers, Medical Accessory Devices, USB Barcode / RFID Readers, Embedded Control Modules, Portable Test & Measurement Instruments.
USB-Enabled Consumer Peripherals
The PIC32MM0256GPM064-E/MR's integrated USB 2.0 full-speed device/host/OTG transceiver makes it a strong fit for USB peripherals such as HID input devices, USB-to-UART bridges, and USB barcode/RFID readers. The 256 KB ECC Flash stores USB stacks plus application firmware, while 32 KB SRAM buffers USB endpoints. Hardware ECC corrects single-bit Flash errors, improving MTBF in field-deployed accessories. Operating from 2.0 V to 3.6 V allows direct USB bus-powered operation. Recommended companions: MCP2221A (USB-to-UART/I2C bridge for secondary port) and MIC2025 (USB power switch).
Recomendado
Low-Power IoT Sensor Nodes
As a member of Microchip's XLP (eXtreme Low Power) family, the PIC32MM0256GPM064-E/MR delivers low sleep currents suitable for battery-powered IoT sensor nodes. The 12-bit 200 ksps ADC digitizes sensor signals directly, while 256 KB ECC Flash supports OTA-friendly firmware updates with bit-error protection. The integrated USB simplifies in-field firmware upgrades and debugging. The -40C to +125C extended range supports outdoor and industrial deployments. Recommended companions: MCP9808 (high-accuracy temperature sensor) and RN4870 (Bluetooth module).
Recomendado
Industrial HMI Control Panels
The PIC32MM0256GPM064-E/MR fits industrial HMI panels with its 52 GPIO pins driving keypads, displays, status LEDs, and relay outputs. The 25 MHz MIPS32 microAptiv UC core executes HMI state machines with deterministic latency, while USB serves as a service/diagnostic interface. Hardware ECC Flash prevents bit-flip-induced crashes in unattended installations. Multiple UART/SPI/I2C interfaces connect to motor drivers, sensors, and communication modules. Recommended companions: MCP2517FD (CAN-FD controller) and MCP25625 (CAN transceiver).
Recomendado
Battery-Powered Data Loggers
Battery-powered data loggers benefit from the PIC32MM0256GPM064-E/MR's XLP sleep modes, 12-bit ADC for analog sensors, 256 KB ECC Flash for tamper-resistant event storage, and USB for file extraction. The 32 KB SRAM buffers continuous sampling, while the RTCC timestamps events accurately even in sleep. Hardware ECC prevents silent corruption of logged data over multi-year deployments - critical for regulatory compliance. Recommended companions: MCP73831 (Li-ion charge manager) and AT25 Flash (external storage).
Recomendado
Medical Accessory Devices
Medical accessories such as USB-connected patient monitors, infusion pump programmers, and diagnostic dongles benefit from the PIC32MM0256GPM064-E/MR's hardware ECC Flash (reducing undetected corruption risk), USB 2.0 FS interface, and extended -40C to +125C operating range. The 256 KB Flash supports USB-CDC/HID stacks plus application firmware, while 32 KB SRAM handles protocol buffering. Low sleep currents preserve battery life in portable devices. Recommended companions: MCP4728 (quad DAC for sensor stimulation) and MCP6002 (low-power op-amp).
Recomendado
USB Barcode / RFID Readers
Handheld USB barcode scanners and RFID readers pair the PIC32MM0256GPM064-E/MR's USB 2.0 FS device interface with the 25 MHz microAptiv UC core for real-time decode and protocol handling. The 256 KB ECC Flash stores decode tables and firmware; 32 KB SRAM buffers scan bursts. The 64-pin QFN-EP package supports compact handheld form factors while the exposed pad enables efficient thermal dissipation during continuous scanning. Recommended companions: MFRC522 (NFC/RFID front-end) and LV4056A (linear Li-ion charger).
Recomendado
Embedded Control Modules
Embedded control modules for robotics, drones, and motor control leverage the PIC32MM0256GPM064-E/MR's multiple 16-bit timers/PWM, 12-bit ADC, and 52 GPIO pins. The hardware multiplier and 25 MHz MIPS32 microAptiv UC execute real-time control loops efficiently. ECC Flash increases reliability in vibration-prone environments, and the USB interface simplifies firmware updates on production modules. The 64-pin QFN-EP provides a compact footprint with a robust thermal path. Recommended companions: MCP8024 (3-phase BLDC gate driver) and MCP1754 (3.3V LDO).
Recomendado
Portable Test & Measurement Instruments
Portable test instruments benefit from the PIC32MM0256GPM064-E/MR's 12-bit 200 ksps ADC for waveform sampling, USB for PC connectivity, and ECC Flash for measurement firmware integrity. The RTCC provides accurate timestamping of logged measurements, and the extended -40C to +125C operating range supports field use. The 256 KB Flash supports graphical UI libraries plus DSP routines; 32 KB SRAM buffers sample data. Recommended companions: MCP6S21 (programmable gain amp) and MCP4725 (DAC for stimulus).
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC32MM0256GPM064-E/MR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC32MM0256GPM064-I/MR | PIC32MM0256GPM064T-I/MR | PIC32MM0128GPM064T-I/MR |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin QFN-EP 9x9 mm | 64-pin QFN-EP 9x9 mm - same | 64-pin QFN-EP 9x9 mm - same | 64-pin QFN-EP 9x9 mm - same |
| Flash | 256 KB | 256 KB - same | 256 KB - same | 128 KB (-50%) |
| SRAM | 32 KB | 32 KB - same | 32 KB - same | 32 KB - same |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Packaging Form | Tube | Tube | Tape and Reel | Tape and Reel |
| USB | USB 2.0 FS Device/Host/OTG | USB 2.0 FS - same | USB 2.0 FS - same | USB 2.0 FS - same |
| ADC | 12-bit 200 ksps | 12-bit 200 ksps - same | 12-bit 200 ksps - same | 12-bit 200 ksps - same |
| Core Speed | 25 MHz | 25 MHz - same | 25 MHz - same | 25 MHz - same |
| Approx. Price @ 1000 | $2.62 | $2.55 (slight) | $2.62 (same) | $2.30 (lower) |
Principais diferenciais
- Extended -40C to +125C operating temperature (vs PIC32MM0256GPM064-I/MR)
- Tube packaging for prototyping (vs PIC32MM0256GPM064T-I/MR)
- 256 KB ECC Flash for safety-critical applications (vs PIC32MM0128GPM064T-I/MR)
Notas de projeto
The 64-pin QFN package has an exposed thermal pad (EP) on pin EP that MUST be soldered to a ground copper pour of at least 1 sq inch to meet thermal ratings. Estimated: at 25 MHz active with USB enabled, worst-case ICC is ~25 mA, producing ~75 mW dissipation at 3.3V; without the EP soldered the junction temperature can exceed 125C in enclosed housings. Use thermal vias under the EP for multi-layer boards.
USB D+ (pin 55) and D- (pin 56) must be routed as a 90-ohm differential pair with controlled impedance, per the Microchip USB layout application notes. Place the VBUS sense pin (57) close to the USB connector. Decouple VDD with 100 nF and 4.7 uF ceramic capacitors placed within 5 mm of the supply pins; AVdd (pin 20, 64) requires an additional 100 nF and 10 uF decoupling network for ADC accuracy.
Estimated: configure the XLP sleep modes for battery applications. Sleep current at 3.3V with RTCC running is approximately 1.5 uA per the PIC32MM family datasheet (DS60001387). Use VBAT (pin 10) to back up the RTCC during VDD loss. For USB-suspended battery devices, leverage the USB interrupt to wake the MCU from sleep.
Do not confuse the PIC32MM0256GPM064 family with the PIC32MX USB family - register layout and PLL configuration differ significantly. When migrating firmware from PIC32MX, the peripheral libraries require porting. The "-E" suffix indicates extended (-40C to +125C) temperature grade - using an "-I" grade part in extended-temperature applications may cause field failures.
The 12-bit ADC achieves 200 ksps but requires careful PCB layout to maintain ENOBELINOM performance. Route analog signals (RA9, RA10, etc.) away from digital switching traces, use a separate analog ground island tied to AVSS at a single point, and place the AVdd ferrite bead between digital and analog supplies per the Microchip ADC reference design.
Informações de conformidade
RoHS and REACH compliant per Microchip product page. Lead-free reflow profile per JEDEC J-STD-020. AEC-Q100 grade not specified; consult Microchip automotive part numbering (PIC32MM0256GPM064-E/MR-VA1) for AEC-Q100 qualified options. Conflict minerals compliance per Microchip policy.
