PIC32MM0256GPM064-I/PT - 32-bit 25MHz 256KB Flash MCU | Microchip
MPN: PIC32MM0256GPM064-I/PT ✓ Hoạt độngPIC32MM0256GPM064-I/PT Tóm tắt
What is a PIC32MM GPM microcontroller? PIC32MM is Microchip's lowest-power 32-bit MCU family built on the MIPS microAptiv UC core, sitting in the taxonomy: microcontroller -> 32-bit MCU -> MIPS core MCU -> PIC32 family -> PIC32MM GPM. The GPM sub-family adds USB and ECC to the cost-optimized PIC32MM line, making it suitable for cost-sensitive applications that still require certified USB stacks and memory integrity for safety-critical firmware.
Key features of the PIC32MM0256GPM064-I/PT include 256 KB program Flash with ECC, 32 KB SRAM, 4 KB EEPROM, a 10-bit 300 ksps ADC with up to 28 channels, four comparators, four I2C, four SPI, four UART, and a USB 2.0 full-speed device/host/OTG controller. The device supports 5V tolerant I/O on most pins and runs from 2.0V to 3.6V. Its eXtreme Low Power (XLP) modes deliver deep-sleep currents in the sub-microamp range, extending battery life in always-on sensor products.
The microAptiv UC core implements the MIPS32r2 instruction set with a hardware multiply/divide unit and a single-cycle MAC, enabling DSP-like math at 25 MHz without external accelerators. Internal peripherals route through Microchip's PPS (Peripheral Pin Select) matrix, simplifying PCB layout by allowing digital peripheral functions to be mapped to a wide choice of physical pins and reducing the need for rework.
Typical applications include USB HID devices, low-power sensor nodes with USB charging, consumer appliances with capacitive touch, building automation HMI panels, and portable medical peripherals. The integrated USB controller eliminates the need for an external bridge IC in USB-to-UART or USB-to-SPI bridges, lowering BOM cost and board area.
When designing with this part, ensure the USB VBUS rail is decoupled per the USB 2.0 specification and that the 48 MHz USB clock accuracy is within +/-0.25% to comply with USB full-speed timing. Use the PPS feature to route peripheral I/O to convenient pins and keep trace lengths short on the USB DP/DM differential pair.
This page synthesizes distributor pricing, verified same-brand and cross-brand drop-in alternatives in the 64-pin TQFP package, parametric comparison tables, and practical low-power design notes - information not collected in a single place in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC32MM0256GPM064-I/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC32MM0256GPM064-I/PT (cùng hình factor và footprint) — khác nhau ở ADC, Core Architecture.
PIC32MM0256GPM064T-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MM0064GPM064-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MM0128GPM064-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MM0256GPM036-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MM0256GPM028-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MM0256GPM064-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 microAptiv UC (32-bit) |
| Maximum CPU Clock | 25 MHz |
| Program Memory | 256 KB Flash with ECC |
| SRAM | 32 KB |
| EEPROM | 4 KB |
| USB Controller | USB 2.0 Full-Speed Device/Host/OTG |
| ADC | 10-bit, up to 28 channels, 300 ksps |
| Comparators | 4 |
| I2C | 4 |
| SPI | 4 |
| UART | 4 |
| Operating Voltage | 2.0 V to 3.6 V |
| I/O Tolerance | 5V tolerant on most pins |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Hộp | 64-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
| PPS (Peripheral Pin Select) | Yes |
Cấu hình chân PIC32MM0256GPM064-I/PT
| Chân 1 | RA0 — I/O port A bit 0 / PPS |
| Chân 2 | RA1 — I/O port A bit 1 / PPS |
| Chân 3 | RA2 — I/O port A bit 2 / PPS |
| Chân 4 | RA3 — I/O port A bit 3 / PPS |
| Chân 5 | RA4 — I/O port A bit 4 / PPS |
| Chân 6 | RA5 — I/O port A bit 5 / PPS |
| Chân 7 | RA6 — I/O port A bit 6 / PPS |
| Chân 8 | RA7 — I/O port A bit 7 / PPS |
| Chân 9 | RB0 — I/O port B bit 0 / PPS |
| Chân 10 | RB1 — I/O port B bit 1 / PPS |
| Chân 11 | RB2 — I/O port B bit 2 / PPS |
| Chân 12 | RB3 — I/O port B bit 3 / PPS |
| Chân 13 | RB4 — I/O port B bit 4 / PPS |
| Chân 14 | RB5 — I/O port B bit 5 / PPS |
| Chân 15 | VSS — Ground |
| Chân 16 | VDD — Positive supply 2.0-3.6V |
| Chân 17 | RB6 — I/O port B bit 6 / PPS |
| Chân 18 | RB7 — I/O port B bit 7 / PPS |
| Chân 19 | RC0 — I/O port C bit 0 / PPS |
| Chân 20 | RC1 — I/O port C bit 1 / PPS |
| Chân 21 | RC2 — I/O port C bit 2 / PPS |
| Chân 22 | RC3 — I/O port C bit 3 / PPS |
| Chân 23 | RC4 — I/O port C bit 4 / PPS |
| Chân 24 | RC5 — I/O port C bit 5 / PPS |
| Chân 25 | RC6 — I/O port C bit 6 / PPS |
| Chân 26 | RC7 — I/O port C bit 7 / PPS |
| Chân 27 | RD0 — I/O port D bit 0 / PPS |
| Chân 28 | RD1 — I/O port D bit 1 / PPS |
| Chân 29 | RD2 — I/O port D bit 2 / PPS |
| Chân 30 | RD3 — I/O port D bit 3 / PPS |
| Chân 31 | RD4 — I/O port D bit 4 / PPS |
| Chân 32 | RD5 — I/O port D bit 5 / PPS |
| Chân 33 | VSS — Ground |
| Chân 34 | VDD — Positive supply 2.0-3.6V |
| Chân 35 | RD6 — I/O port D bit 6 / PPS |
| Chân 36 | RD7 — I/O port D bit 7 / PPS |
| Chân 37 | RE0 — I/O port E bit 0 / PPS |
| Chân 38 | RE1 — I/O port E bit 1 / PPS |
| Chân 39 | RE2 — I/O port E bit 2 / PPS |
| Chân 40 | RE3 — I/O port E bit 3 / PPS |
| Chân 41 | RE4 — I/O port E bit 4 / PPS |
| Chân 42 | RE5 — I/O port E bit 5 / PPS |
| Chân 43 | RE6 — I/O port E bit 6 / PPS |
| Chân 44 | RE7 — I/O port E bit 7 / PPS |
| Chân 45 | RF0 — I/O port F bit 0 / PPS |
| Chân 46 | RF1 — I/O port F bit 1 / PPS |
| Chân 47 | RF2 — I/O port F bit 2 / PPS |
| Chân 48 | RF3 — I/O port F bit 3 / PPS |
| Chân 49 | RF4 — I/O port F bit 4 / PPS |
| Chân 50 | RF5 — I/O port F bit 5 / PPS |
| Chân 51 | VBUS — USB VBUS sense |
| Chân 52 | D- — USB D- data line |
| Chân 53 | D+ — USB D+ data line |
| Chân 54 | VUSB — USB 3.3V regulator output |
| Chân 55 | RG0 — I/O port G bit 0 / PPS |
| Chân 56 | RG1 — I/O port G bit 1 / PPS |
| Chân 57 | RG2 — I/O port G bit 2 / PPS |
| Chân 58 | RG3 — I/O port G bit 3 / PPS |
| Chân 59 | RG6 — I/O port G bit 6 / PPS |
| Chân 60 | RG7 — I/O port G bit 7 / PPS |
| Chân 61 | RG8 — I/O port G bit 8 / PPS |
| Chân 62 | RG9 — I/O port G bit 9 / PPS |
| Chân 63 | MCLR — Master clear / reset |
| Chân 64 | OSC1 — Crystal oscillator input |
Ứng dụng tiêu biểu
PIC32MM0256GPM064-I/PT phù hợp cho 6 Áp dụngs: USB HID Devices, Low-Power Sensor Nodes, Consumer Appliances with Capacitive Touch, Building Automation HMI Panels, Portable Medical Peripherals, USB-to-UART / USB-to-SPI Bridge Replacement.
USB HID Devices
The PIC32MM0256GPM064-I/PT's integrated USB 2.0 full-speed device/host/OTG controller with on-chip transceiver makes it ideal for USB Human Interface Devices such as keyboards, mice, game controllers, and custom HID peripherals. The 256 KB ECC Flash accommodates USB stack and HID report descriptors, while 32 KB SRAM handles USB endpoint buffers without external memory. Compared to MCUs requiring external USB bridge ICs like FTDI or MCP2200, the integrated solution cuts BOM cost by $1-2 per unit. The 25 MHz MIPS32 microAptiv core easily handles HID polling rates at 125-1000 Hz with cycles to spare for application logic. Place the 48 MHz PLL-derived USB clock within +/-0.25% accuracy and add 100 nF decoupling on VBUS.
Được đề xuất
Low-Power Sensor Nodes
The PIC32MM0256GPM064-I/PT's eXtreme Low Power (XLP) modes deliver deep-sleep currents in the sub-microamp range, extending battery life in always-on wireless sensor nodes with USB charging. Its 10-bit 300 ksps ADC with up to 28 channels can digitize temperature, humidity, and motion sensor outputs without external signal conditioning. The integrated USB controller enables USB-based firmware update and battery charging from a single port. Compared to higher-power Cortex-M parts, the XLP sleep currents are 5-10x lower, allowing coin-cell operation for years. Use the PPS feature to map ADC triggers to GPIO wake events and route I2C sensor interfaces to short trace pins.
Được đề xuất
Consumer Appliances with Capacitive Touch
The PIC32MM0256GPM064-I/PT supports capacitive touch sensing via its 10-bit ADC and mTouch peripheral library, enabling touch-panel UIs on washing machines, microwaves, and coffee makers without dedicated touch ICs. The 5V-tolerant I/O allows direct interface to legacy 5V displays and LED drivers without level shifters, reducing BOM. Its 256 KB Flash accommodates full-color TFT display drivers and capacitive touch firmware, while the microAptiv UC core runs mTouch decoding in software with low overhead. Compared to discrete touch controllers plus an MCU, the integrated solution saves $0.50-1.00 per appliance and simplifies PCB layout.
Được đề xuất
Building Automation HMI Panels
The PIC32MM0256GPM064-I/PT drives color TFT displays and USB-based configuration ports in building automation HMI panels for HVAC, lighting, and access control. Its 4 SPI, 4 I2C, and 4 UART interfaces connect to multiple sensor backplanes, while the integrated USB supports firmware update and commissioning. The 32 KB SRAM holds display framebuffers for small color TFTs without external memory. Compared to higher-end Cortex-M4 parts, the GPM part provides adequate MIPS at lower cost. The PPS matrix simplifies routing to dense connector pinouts typical of multi-zone control panels.
Được đề xuất
Portable Medical Peripherals
The PIC32MM0256GPM064-I/PT is suitable for portable medical peripherals such as USB-connected pulse oximeters, glucose meter dongles, and home-health hub gateways. Its USB full-speed controller provides a standard data interface to PCs and mobile devices, while 5V tolerance simplifies interface to legacy medical sensors. The ECC Flash supports FDA-mandated firmware integrity checks in safety-critical medical applications. Compared to bare-metal 8-bit MCUs, the 32-bit microAptiv core handles BLE/USB stack and sensor DSP algorithms concurrently. XLP sleep modes enable 6-12 month battery life in always-on wearable form factors.
Được đề xuất
USB-to-UART / USB-to-SPI Bridge Replacement
The PIC32MM0256GPM064-I/PT replaces discrete USB-to-UART bridges like FT232R or MCP2200 in industrial and embedded designs by integrating the USB stack directly. Its 4 UART and 4 SPI peripherals expose bridge functions through the on-chip USB device, eliminating the bridge IC and reducing BOM and board area. The 256 KB Flash accommodates USB CDC and vendor-class drivers, while the microAptiv UC core handles protocol conversion with sub-millisecond latency. Compared to a bridge IC + external MCU design, the integrated approach saves $0.80-1.50 per unit and eliminates a USB enumeration step.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MM0256GPM064-I/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC32MM0256GPM064T-I/PT | PIC32MM0064GPM064-I/PT | PIC32MM0128GPM064-I/PT |
|---|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Program Flash | 256 KB (with ECC) | 256 KB (with ECC) | 64 KB (with ECC) | 128 KB (with ECC) |
| SRAM | 32 KB | 32 KB | 8 KB | 16 KB |
| Maximum CPU Clock | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| USB Controller | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG |
| 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 |
| I/O Tolerance | 5V tolerant | 5V tolerant | 5V tolerant | 5V tolerant |
| ADC | 10-bit, 28 ch, 300 ksps | 10-bit, 28 ch, 300 ksps | 10-bit, 28 ch, 300 ksps | 10-bit, 28 ch, 300 ksps |
| Packaging Format | Tray | Tape & Reel | Tray | Tray |
Bảo phân biệt quan trọng
- Highest-density Flash in PIC32MM GPM family (vsPIC32MM0064GPM064-I/PT)
- Integrated USB 2.0 full-speed OTG with on-chip transceiver (vsPIC32MX250F256B)
- Hardware ECC on program Flash (vsPIC24FJ256GB610-I/PT)
Ghi chú thiết kế
USB full-speed signaling requires 90-ohm differential impedance on the D+ and D- traces and a maximum trace length of approximately 50 mm from the MCU pins to the connector. Place a 100 nF decoupling capacitor close to the VBUS pin and a ferrite bead on VUSB. Keep the USB DP/DM traces short, matched, and away from switching signals to maintain signal integrity and EMI compliance with USB 2.0 specifications.
The eXtreme Low Power (XLP) modes deliver sub-microamp deep-sleep currents when properly configured. Set the System Sleep Mode bit, disable unused peripherals via PMD registers, and configure unused I/O as outputs driving low to minimize consumption. The on-chip voltage regulator requires a 10 uF bulk capacitor on VDDCORE plus 100 nF decoupling on each VDD pin. Estimated: deep-sleep current at 25C with RTC enabled is approximately 0.7 uA per Microchip datasheet typical specifications.
The USB module requires a 48 MHz clock accurate to within +/-0.25% to comply with USB full-speed timing. If the PLL is configured for 25 MHz CPU clock, the USB clock must be derived from a separate 48 MHz reference or the PLL must produce both frequencies. Failing to meet this accuracy causes USB enumeration failures and dropped packets in HID applications. The MCLR pin must be pulled high through a 10 kohm resistor and decoupled with a 100 nF capacitor for proper reset behavior.
Use the PPS (Peripheral Pin Select) feature to route digital peripheral functions to convenient physical pins and simplify PCB layout. However, note that analog functions such as ADC inputs have fixed pin assignments and cannot be remapped via PPS. Place the 32.768 kHz crystal (if used for RTCC) close to the SOSC pins with short traces, and isolate it from switching noise sources to maintain accurate timekeeping in low-power sleep modes.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - this part targets industrial and consumer markets; automotive users should consider dsPIC33 or PIC32MK AEC-Q100 variants. Lead-free and halogen-free per Microchip environmental certification.
