PIC32MX764F128HT-I/MR - 80MHz 32-bit MCU 128KB Flash USB/CAN/ETH | Microchip
MPN: PIC32MX764F128HT-I/MR ✓ AktifPIC32MX764F128HT-I/MR Ringkasan
A 32-bit microcontroller (MCU) is a single-chip computer that integrates a 32-bit CPU core, volatile and non-volatile memory, and a rich set of programmable peripherals around a shared bus. PIC32MX parts extend the classic PIC architecture to a MIPS-based 32-bit RISC core, sitting in the hierarchy: MCU -> 32-bit MCU -> MIPS M4K core -> PIC32MX family -> PIC32MX5/6/7 connectivity sub-family. This positioning lets the part replace 16-bit or ARM Cortex-M0 designs while keeping the PIC ecosystem, MPLAB X toolchain, and Harmony framework compatibility.
Key features include 128 KB flash (128K x 8), 32 KB RAM, 53 user I/O lines, an internal oscillator with PLL, an 8-bit parallel master port, four 16-bit timers, five input-capture, five output-compare, and a peripheral pin-select engine that remaps digital peripherals to any remappable pin. The MR suffix designates a 64-pin VQFN with an exposed thermal pad, giving the device an exposed pad with 31.4 C/W thermal resistance on a 4-layer JEDEC JESD51 test board.
The PIC32MX764F128HT-I/MR is built on a 0.18 µm CMOS process and supports an industrial -40C to +85C operating range. Its shadow register set and fast interrupt context save restore accelerate real-time responses, while the bus matrix and 4-channel DMA offload the CPU from peripheral and memory-to-memory transfers, freeing cycles for the TCP/IP stack and application logic.
Typical applications include industrial Ethernet nodes, USB device peripherals, CAN-based automotive sub-networks, building automation gateways, and embedded web servers. The integrated Ethernet MAC and USB peripheral pair cleanly with external PHYs and USB transceivers, while the CAN module supports OBD-II and CANopen nodes.
When designing with this part, note that the 'T' suffix denotes tape-and-reel packaging, 'I' is the industrial temperature grade, and 'MR' identifies the 64-pin VQFN. Adecquate PCB copper under the exposed pad is required to meet the published thermal resistance; without it, junction temperature can exceed 85C under continuous full-load operation.
This page synthesizes distributor pricing, drop-in Microchip family alternatives, and design notes not found in the manufacturer datasheet, giving procurement and firmware engineers a single reference for the PIC32MX764F128HT-I/MR.
Alternatif penggantian untuk PIC32MX764F128HT-I/MR — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian PIC32MX764F128HT-I/MR (sama faktor bentuk dan footprint) — berbeda di dalam Package, ADC, Core Architecture, CAN, Operating Temperature.
PIC32MX564F128HT-I/MR
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX664F128H-I/MR
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
PIC32MX675F512HT-80I/MR
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX695F512HT-80I/MR
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX575F512H-80I/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX764F128HT-I/MR Rating Maksimal & Karakteristik Listrik
| Core | MIPS32 M4K |
| Core Architecture | 32-bit RISC |
| Family | PIC32MX5/6/7 |
| Maximum CPU Frequency | 80 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (SRAM) | 32 KB (32K x 8) |
| Number of I/O Pins | 53 |
| Tegangan Pemuat | 2.3 V to 3.6 V |
| Suhu Kerja | -40C to +85C (industrial) |
| Paket | 64-VQFN (9x9 mm) with exposed thermal pad |
| Tipe Mounting | Surface Mount |
| DMA Channels | 4 |
| ADC | 16-channel, 10-bit |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| CAN | CAN 2.0B |
| Ethernet | 10/100 Mbps MAC (external PHY required) |
| Timers | Five 16-bit, two 32-bit (capture/compare) |
| Level MSL | 3 (per JEDEC J-STD-020) |
| Status RoHS | Compliant |
| Oscillator Type | Internal with PLL |
Konfigurasi Pin PIC32MX764F128HT-I/MR
| Pin produk 1 | RP15/RD15 — Remappable I/O, also RD15 |
| Pin produk 2 | RP14/RD14 — Remappable I/O, also RD14 |
| Pin produk 3 | RP13/RD13 — Remappable I/O, also RD13 |
| Pin produk 4 | RP12/RD12 — Remappable I/O, also RD12 |
| Pin produk 5 | RP11/RD11 — Remappable I/O, also RD11 |
| Pin produk 6 | RP10/RD10 — Remappable I/O, also RD10 |
| Pin produk 7 | RP9/RD9 — Remappable I/O, also RD9 |
| Pin produk 8 | VDD — 3.3 V core supply |
| Pin produk 9 | RP8/RD8 — Remappable I/O, also RD8 |
| Pin produk 10 | RP7/RD7 — Remappable I/O, also RD7 |
| Pin produk 11 | RP6/RD6 — Remappable I/O, also RD6 |
| Pin produk 12 | RP5/RD5 — Remappable I/O, also RD5 |
| Pin produk 13 | RP4/RD4 — Remappable I/O, also RD4 |
| Pin produk 14 | RP3/RD3 — Remappable I/O, also RD3 |
| Pin produk 15 | RP2/RD2 — Remappable I/O, also RD2 |
| Pin produk 16 | RP1/RD1 — Remappable I/O, also RD1 |
| Pin produk 17 | RP0/RD0 — Remappable I/O, also RD0 |
| Pin produk 18 | AVDD — Analog supply for ADC |
| Pin produk 19 | AVSS — Analog ground |
| Pin produk 20 | VREF+ — ADC voltage reference positive |
| Pin produk 21 | VREF- — ADC voltage reference negative |
| Pin produk 22 | AN0/C2IN+/RP4 — Analog input 0 / comparator input |
| Pin produk 23 | AN1/C2IN-/RP3 — Analog input 1 |
| Pin produk 24 | AN2/C1IN+/RP2 — Analog input 2 |
| Pin produk 25 | AN3/C1IN-/RP1 — Analog input 3 |
| Pin produk 26 | AN4/RB0 — Analog input 4 |
| Pin produk 27 | AN5/RB1 — Analog input 5 |
| Pin produk 28 | AN6/RB2 — Analog input 6 |
| Pin produk 29 | AN7/RB3 — Analog input 7 |
| Pin produk 30 | AN8/RB4 — Analog input 8 |
| Pin produk 31 | AN9/RB5 — Analog input 9 |
| Pin produk 32 | AN10/RB6 — Analog input 10 |
| Pin produk 33 | AN11/RB7 — Analog input 11 |
| Pin produk 34 | AN12/RB8 — Analog input 12 |
| Pin produk 35 | AN13/RB9 — Analog input 13 |
| Pin produk 36 | D+/RG2 — USB D+ data line |
| Pin produk 37 | D-/RG3 — USB D- data line |
| Pin produk 38 | VBUS — USB VBUS detect input |
| Pin produk 39 | VUSB — USB 3.3 V supply |
| Pin produk 40 | RG15 — General-purpose I/O |
| Pin produk 41 | RG12 — General-purpose I/O |
| Pin produk 42 | RG13 — General-purpose I/O |
| Pin produk 43 | RG14 — General-purpose I/O |
| Pin produk 44 | RA15 — General-purpose I/O |
| Pin produk 45 | RA14 — General-purpose I/O |
| Pin produk 46 | VDD — 3.3 V core supply |
| Pin produk 47 | VSS — Digital ground |
| Pin produk 48 | RA9 — General-purpose I/O |
| Pin produk 49 | RA8 — General-purpose I/O |
| Pin produk 50 | RA10 — General-purpose I/O |
| Pin produk 51 | RA7 — General-purpose I/O |
| Pin produk 52 | RA6 — General-purpose I/O |
| Pin produk 53 | RA5 — General-purpose I/O |
| Pin produk 54 | RA4 — General-purpose I/O |
| Pin produk 55 | RA3 — General-purpose I/O |
| Pin produk 56 | RA2 — General-purpose I/O |
| Pin produk 57 | RA1 — General-purpose I/O |
| Pin produk 58 | RA0 — General-purpose I/O |
| Pin produk 59 | MCLR — Master clear reset input |
| Pin produk 60 | SOSCI/RF13 — Secondary oscillator input or GPIO |
| Pin produk 61 | SOSCO/RF12 — Secondary oscillator output or GPIO |
| Pin produk 62 | CLKI/RC12 — External clock input or GPIO |
| Pin produk 63 | OSC1/RC15 — Primary oscillator input |
| Pin produk 64 | OSC2/RC14 — Primary oscillator output |
Aplikasi Umum
PIC32MX764F128HT-I/MR cocok untuk 6 aplikasis: Industrial Ethernet Gateway, USB Device Peripherals, CAN-based Automotive Sub-Networks, Building Automation and HVAC Controllers, Embedded Web Server / IoT Node, Data Acquisition and Control Module.
Industrial Ethernet Gateway
The PIC32MX764F128HT-I/MR's integrated 10/100 Ethernet MAC and 80 MHz MIPS32 M4K core make it ideal for industrial protocol-conversion gateways. The MAC supports MII and RMII to external PHYs such as the LAN8720A, and the 32 KB SRAM holds a Modbus TCP server plus Profibus-to-Ethernet bridge tables. The 4-channel DMA offloads TCP/IP packet transfers, freeing the CPU for application logic. The 128 KB flash accommodates the MPLAB Harmony TCP/IP stack with TLS, and the -40C to +85C industrial range tolerates factory-floor temperatures.
Direkomendasikan
USB Device Peripherals
The PIC32MX764F128HT-I/MR integrates USB 2.0 full-speed Device/Host/OTG with on-chip transceivers, eliminating the need for an external PHY. Its 16-channel 10-bit ADC samples sensor data at up to 500 ksps, while 4-channel DMA streams samples to USB endpoints without CPU intervention. The 53 user I/O lines drive indicator LEDs and accept user inputs, and 32 KB RAM comfortably buffers USB HID or CDC transfers. Designers can implement CDC virtual COM ports, HID keyboards, or vendor-class devices using the MPLAB Harmony USB framework.
Direkomendasikan
CAN-based Automotive Sub-Networks
The PIC32MX764F128HT-I/MR's integrated CAN 2.0B module supports bit rates up to 1 Mbit/s, with 32 acceptance filters and masks for message routing. The 80 MHz MIPS32 M4K core handles the OBD-II response stack and CANopen SDO transfers with comfortable headroom. 128 KB flash holds the CANopen or J1939 protocol stack plus application logic, and 32 KB SRAM buffers incoming PDOs. The exposed thermal pad and 64-pin VQFN footprint are suited to automotive sub-network modules and body-control accessories in non-safety-critical zones.
Direkomendasikan
Building Automation and HVAC Controllers
The PIC32MX764F128HT-I/MR's combination of USB, CAN, and Ethernet interfaces suits BACnet, Modbus, and LonWorks building-automation controllers. The 16-channel 10-bit ADC reads temperature, humidity, and pressure sensors, while the 5 output-compare units generate PWM for damper and valve actuators. The 128 KB flash hosts the BACnet/IP stack, and the -40C to +85C range covers unheated plant-room environments. The peripheral pin-select engine remaps UART and SPI to free pins, simplifying PCB layout when the design grows beyond 53 I/Os.
Direkomendasikan
Embedded Web Server / IoT Node
The PIC32MX764F128HT-I/MR runs an embedded HTTP/HTTPS web server via the MPLAB Harmony TCP/IP stack, with the 80 MHz core handling TLS handshakes and 32 KB SRAM caching connection state. The peripheral pin-select engine maps SPI to an external Wi-Fi or Ethernet module if the user prefers modular connectivity. 128 KB flash stores web pages, REST handlers, and JSON payloads, while the 4-channel DMA accelerates SPI transfers to flash storage. Industrial temperature range supports outdoor enclosures.
Direkomendasikan
Data Acquisition and Control Module
The PIC32MX764F128HT-I/MR's 16-channel 10-bit ADC, five input-capture, and five output-compare units provide a complete data-acquisition front-end for test and measurement modules. The 4-channel DMA streams ADC samples to RAM at 500 ksps aggregate, while the Ethernet MAC uploads data to a host PC. 32 KB SRAM buffers 16,000 samples (10-bit) before transfer, and 128 KB flash holds calibration constants and control algorithms. The 53 user I/O lines drive front-panel buttons and displays, making the part a fit for compact bench instruments.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk PIC32MX764F128HT-I/MR — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | PIC32MX564F128HT-I/MR | PIC32MX664F128H-I/MR | PIC32MX675F512HT-80I/MR | PIC32MX695F512HT-80I/MR | PIC32MX575F512H-80I/PT |
|---|---|---|---|---|---|---|
| Package | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| Ethernet MAC | 10/100 Mbit | Not present | 10/100 Mbit | 10/100 Mbit | 10/100 Mbit | Not present |
| USB | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS/HS OTG | Not present |
| CAN | 1x CAN 2.0B | 1x CAN 2.0B | Not present | 1x CAN 2.0B | 1x CAN 2.0B | Not present |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Diferensiator Kunci
- Full Ethernet MAC plus dual CAN in a single 64-pin VQFN (vsPIC32MX564F128HT-I/MR)
- USB 2.0 with on-chip transceiver plus peripheral pin-select (vsPIC32MX575F512H-80I/PT)
- Industrial temperature grade and exposed thermal pad (vsPIC32MX675F512HT-80I/MR)
Catatan Desain
The 64-pin VQFN exposed thermal pad MUST be soldered to a copper pour of at least 1 square inch (645 mm^2) on a 4-layer JEDEC JESD51 test board. Without this, theta_JA degrades from approximately 31 C/W to above 50 C/W, and at 80 MHz full-load the junction temperature can exceed 100C at 70C ambient. Place at least 8 thermal vias (0.3 mm drill, 1 oz plating) under the pad to break the thermal barrier.
Decouple each VDD pin with a 100 nF ceramic capacitor placed within 5 mm of the pin and tied to a low-impedance ground via. AVDD needs its own 100 nF decoupling plus a 10 uF bulk; VUSB needs a 10 uF bulk if USB host mode is used. Keep the USB D+/D- traces at 90 ohm differential, length-matched within 2 mm, and isolated from switching signals to avoid radiated EMI compliance failures.
Do not enable JTAG and ICSP simultaneously on the same port without verifying the pin mapping, otherwise debugging will fail. Ensure the MCLR pin has a 10 kohm pull-up and a 100 nF cap to ground for in-circuit serial programming stability. AVDD must be powered at the same time as VDD; floating AVDD causes spurious ADC readings and unpredictable behavior on the comparator peripherals.
Informasi Konformitas
RoHS compliant per Microchip product page; lead-free (Pb-free) matte-tin finish on VQFN leads; industrial temperature grade -40C to +85C; not AEC-Q100 qualified - this is a 32-bit MCU for industrial connectivity, not automotive safety-critical applications.
