PIC32MM0256GPM064-E/MR - 32-bit 25MHz 256KB Flash MCU | Microchip
Référence : PIC32MM0256GPM064-E/MR ✓ Actif| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour PIC32MM0256GPM064-E/MR — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC32MM0256GPM064-E/MR (même facteur de forme et même empreinte) — différant par ADC, Package, Communication Interfaces, Operating Temperature, Program Memory (Flash).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC32MM0256GPM064-I/MR
✅ Remplacement direct✓ En stock
$2.45 / unité
Voir la fiche technique →PIC32MM0256GPM064T-I/MR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MM0128GPM064T-I/MR
✅ Remplacement direct✓ En stock
$1.74 / unité
Voir la fiche technique →PIC32MM0256GPM064-E/MR Valeurs maximales et caractéristiques électriques
| 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 |
| Température de fonctionnement | -40C to +125C (Extended, "-E") |
| Boîtier | 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) |
| Type de montage | Surface Mount |
| Packaging | Tube ("MR" suffix) |
| Statut RoHS | Compliant |
Configuration des broches de PIC32MM0256GPM064-E/MR
| Broche 1 | RB0 — General purpose I/O |
| Broche 2 | RB1 — General purpose I/O |
| Broche 3 | RB2 — General purpose I/O |
| Broche 4 | RB3 — General purpose I/O |
| Broche 5 | RB4 — General purpose I/O |
| Broche 6 | RB5 — General purpose I/O |
| Broche 7 | RB6 — General purpose I/O |
| Broche 8 | RB7 — General purpose I/O |
| Broche 9 | VSS — Ground reference |
| Broche 10 | VBAT — RTCC battery supply |
| Broche 11 | RA0 — General purpose I/O |
| Broche 12 | RA1 — General purpose I/O |
| Broche 13 | RA2 — General purpose I/O |
| Broche 14 | RA3 — General purpose I/O |
| Broche 15 | RA4 — General purpose I/O |
| Broche 16 | RA5 — General purpose I/O |
| Broche 17 | RA6 — General purpose I/O |
| Broche 18 | RA7 — General purpose I/O |
| Broche 19 | VSS — Ground reference |
| Broche 20 | AVDD — Analog supply |
| Broche 21 | AVSS — Analog ground |
| Broche 22 | RA9 — General purpose I/O |
| Broche 23 | RA10 — General purpose I/O |
| Broche 24 | RC0 — General purpose I/O |
| Broche 25 | RC1 — General purpose I/O |
| Broche 26 | RC2 — General purpose I/O |
| Broche 27 | RC3 — General purpose I/O |
| Broche 28 | RC4 — General purpose I/O |
| Broche 29 | RC5 — General purpose I/O |
| Broche 30 | RC6 — General purpose I/O |
| Broche 31 | RC7 — General purpose I/O |
| Broche 32 | RC8 — General purpose I/O |
| Broche 33 | RC9 — General purpose I/O |
| Broche 34 | VSS — Ground reference |
| Broche 35 | RC10 — General purpose I/O |
| Broche 36 | RC11 — General purpose I/O |
| Broche 37 | RC12 — General purpose I/O |
| Broche 38 | RC13 — General purpose I/O |
| Broche 39 | RC14 — General purpose I/O |
| Broche 40 | RC15 — General purpose I/O |
| Broche 41 | VSS — Ground reference |
| Broche 42 | RD0 — General purpose I/O |
| Broche 43 | RD1 — General purpose I/O |
| Broche 44 | RD2 — General purpose I/O |
| Broche 45 | RD3 — General purpose I/O |
| Broche 46 | RD4 — General purpose I/O |
| Broche 47 | RD5 — General purpose I/O |
| Broche 48 | RD6 — General purpose I/O |
| Broche 49 | RD7 — General purpose I/O |
| Broche 50 | RD8 — General purpose I/O |
| Broche 51 | RD9 — General purpose I/O |
| Broche 52 | RD10 — General purpose I/O |
| Broche 53 | RD11 — General purpose I/O |
| Broche 54 | VSS — Ground reference |
| Broche 55 | D+ — USB D+ data line |
| Broche 56 | D- — USB D- data line |
| Broche 57 | VBUS — USB VBUS sense |
| Broche 58 | VUSB — USB transceiver supply |
| Broche 59 | RD12 — General purpose I/O |
| Broche 60 | RD13 — General purpose I/O |
| Broche 61 | RD14 — General purpose I/O |
| Broche 62 | RD15 — General purpose I/O |
| Broche 63 | MCLR — Master clear (reset) |
| Broche 64 | AVDD — Analog supply |
| Broche EP | EP — Exposed thermal/ground pad |
Applications typiques
PIC32MM0256GPM064-E/MR convient pour 8 applications: 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).
Recommandé
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).
Recommandé
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).
Recommandé
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).
Recommandé
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).
Recommandé
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).
Recommandé
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).
Recommandé
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).
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC32MM0256GPM064-E/MR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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) |
Principaux différenciateurs
- 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)
Notes de conception
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.
Informations de conformité
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.
