PIC32MX340F256HT-80I/MR - 80MHz 32-bit MCU 256KB Flash | Microchip
MPN: PIC32MX340F256HT-80I/MR ✓ فعالPIC32MX340F256HT-80I/MR نمای کلی
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (RAM), and a configurable set of peripherals such as ADC, timers, communication interfaces, and GPIO. The PIC32 family specifically targets MIPS32-based 32-bit processing at low power, sitting between 8/16-bit MCUs and full application processors in the embedded taxonomy (MCU -> 32-bit MCU -> MIPS-based MCU -> PIC32MX family). The "MX340" sub-family emphasizes USB 2.0 Full-Speed, CAN, and motor-control peripherals for industrial and consumer designs.
Key features of this variant include a 10-bit 1 MSPS Analog-to-Digital Converter, multiple UART/SPI/I2C interfaces, USB 2.0 Full-Speed On-The-Go, a DMA controller for offloading CPU data movement, and an operating voltage range of 2.3V to 3.6V. The -80I suffix denotes industrial temperature range (-40C to +85C) and the 80 MHz maximum clock. The "T" in the part number indicates tape-and-reel packaging, and the "MR" suffix designates the 64-pin VQFN package.
The device uses a 5-stage pipeline MIPS32 M4K core with single-cycle multiplication and hardware divide, delivering 80 DMIPS of processing throughput. Integrated peripherals include a parallel master port for external bus interfacing, five 16-bit timers/counters, and a real-time clock calendar, allowing the chip to act as a complete system controller in connected applications.
Typical applications include USB peripherals and HID devices, industrial control and HMI panels, CAN-connected sensor nodes, low-cost graphical user interfaces, and connected IoT appliances. The combination of USB, CAN, and ample RAM makes the part a strong fit for bridging industrial fieldbuses to USB hosts.
When designing with this part, allocate adequate PCB copper area beneath the 9x9 mm QFN exposed pad to meet the 31.7 C/W thermal resistance rating under industrial conditions, and use MPLAB X IDE with the XC32 compiler toolchain. Decouple VDD/VUSB with 100 nF + 10 uF ceramics within 3 mm of the supply pins.
This page synthesizes distributor pricing, drop-in same-package alternatives, application notes, and design guidance not consolidated in the manufacturer datasheet alone.
جایگزین‌های drop-in برای PIC32MX340F256HT-80I/MR — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC32MX340F256HT-80I/MR (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, ADC, DMA Channels, Operating Temperature, Timers.
PIC32MX340F256H-80I/MR
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC32MX340F128HT-80I/MR
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC32MX330F064HT-V/MR
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC32MX270F512HT-50I/MR
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC32MX250F256HT-I/MR
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC32MX150F256HT-I/MR
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC32MX340F256HT-80I/MR حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Architecture | MIPS32 M4K 32-bit RISC |
| حداکثر فرکانس کلاک | 80 MHz |
| Flash Program Memory | 256 KB (256K x 8) |
| SRAM | 64 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| دمای کاری | -40C to +85C (Industrial) |
| ADC | 10-bit, 16-channel, 1 MSPS |
| بسته‌بندی | 64-VQFN (MR) 9x9 mm |
| نوع نصب | Surface Mount |
| USB | USB 2.0 Full-Speed OTG |
| CAN | 1x CAN 2.0B |
| DMA Channels | 8 channels |
| Timers | 5 x 16-bit |
| UART | Yes (multiple) |
| SPI | Yes |
| I2C | Yes |
| وضعیت RoHS | Compliant |
| Lead-Free | Yes |
پیکربندی پین PIC32MX340F256HT-80I/MR
| پین 1 | RG15 — General purpose I/O / SDA2 |
| پین 2 | RG12 — General purpose I/O |
| پین 3 | RA0 — General purpose I/O / AN0 |
| پین 4 | RA1 — General purpose I/O / AN1 |
| پین 5 | RA2 — General purpose I/O / AN2 |
| پین 6 | RA3 — General purpose I/O / AN3 |
| پین 7 | RA4 — General purpose I/O / AN4 |
| پین 8 | RA5 — General purpose I/O / AN5 |
| پین 9 | RA6 — General purpose I/O / AN6 |
| پین 10 | RA7 — General purpose I/O / AN7 |
| پین 11 | AVDD — Analog supply voltage |
| پین 12 | AVSS — Analog ground |
| پین 13 | RB0 — General purpose I/O / AN8 / PGED1 |
| پین 14 | RB1 — General purpose I/O / AN9 / PGEC1 |
| پین 15 | RB2 — General purpose I/O / AN10 |
| پین 16 | RB3 — General purpose I/O / AN11 |
| پین 17 | RB4 — General purpose I/O / AN12 |
| پین 18 | RB5 — General purpose I/O / AN13 |
| پین 19 | RB6 — General purpose I/O / AN14 / PGED2 |
| پین 20 | RB7 — General purpose I/O / AN15 / PGEC2 |
| پین 21 | RC12 — General purpose I/O |
| پین 22 | RC15 — General purpose I/O |
| پین 23 | RC13 — General purpose I/O |
| پین 24 | RC14 — General purpose I/O |
| پین 25 | VDD — Digital supply voltage |
| پین 26 | VSS — Digital ground |
| پین 27 | RF0 — General purpose I/O |
| پین 28 | RF1 — General purpose I/O |
| پین 29 | RF4 — General purpose I/O |
| پین 30 | RF5 — General purpose I/O |
| پین 31 | RF3 — General purpose I/O |
| پین 32 | RF2 — General purpose I/O |
| پین 33 | RF6 — General purpose I/O |
| پین 34 | RF7 — General purpose I/O |
| پین 35 | RF8 — General purpose I/O |
| پین 36 | VDD — Digital supply voltage |
| پین 37 | VSS — Digital ground |
| پین 38 | RG0 — General purpose I/O |
| پین 39 | RG1 — General purpose I/O |
| پین 40 | RG2 — General purpose I/O / D+ (USB) |
| پین 41 | RG3 — General purpose I/O / D- (USB) |
| پین 42 | RG6 — General purpose I/O |
| پین 43 | RG7 — General purpose I/O |
| پین 44 | RG8 — General purpose I/O |
| پین 45 | RG9 — General purpose I/O |
| پین 46 | VUSB — USB supply voltage |
| پین 47 | VDD — Digital supply voltage |
| پین 48 | VSS — Digital ground |
| پین 49 | RD0 — General purpose I/O |
| پین 50 | RD1 — General purpose I/O |
| پین 51 | RD2 — General purpose I/O |
| پین 52 | RD3 — General purpose I/O |
| پین 53 | RD4 — General purpose I/O |
| پین 54 | RD5 — General purpose I/O |
| پین 55 | RD6 — General purpose I/O |
| پین 56 | RD7 — General purpose I/O |
| پین 57 | RC1 — General purpose I/O |
| پین 58 | RC2 — General purpose I/O |
| پین 59 | RC3 — General purpose I/O |
| پین 60 | RC4 — General purpose I/O |
| پین 61 | OSC1 — Crystal oscillator input |
| پین 62 | OSC2 — Crystal oscillator output |
| پین 63 | MCLR — Master clear / reset input |
| پین 64 | EP — Exposed thermal pad (connect to VSS) |
کاربردهای معمول
PIC32MX340F256HT-80I/MR مناسب است برای 6 کاربردs: USB HID and CDC Peripherals, CAN Bus Industrial Sensor Nodes, Industrial HMI Control Panels, USB-to-CAN Fieldbus Bridges, Low-Cost Graphical User Interfaces, Connected IoT Appliance Controllers.
USB HID and CDC Peripherals
The PIC32MX340F256HT-80I/MR integrates USB 2.0 Full-Speed On-The-Go with internal transceiver, eliminating external PHY cost. Its 80 MHz MIPS32 core handles USB enumeration and HID report processing within microsecond latency budgets, while the 64 KB RAM buffers HID ring descriptors and CDC line-coding state. With 256 KB Flash the device supports composite USB stacks (HID + CDC + vendor) plus bootloader space below -40C vs +85C.
پیشنهادی
CAN Bus Industrial Sensor Nodes
The on-chip CAN 2.0B controller makes the PIC32MX340F256HT-80I/MR a fit for industrial sensor nodes bridging fieldbuses to higher-level controllers. The 80 MHz core executes CANopen or DeviceNet protocol stacks within tight cycle budgets, while 256 KB Flash accommodates protocol libraries and application firmware. Industrial -40C to +85C temperature range covers factory floor environments reliably.
پیشنهادی
Industrial HMI Control Panels
The 64 KB RAM supports small TFT framebuffers for HMI control panels, while the 16-channel 10-bit ADC reads analog key matrices and potentiometer inputs. The PIC32MX340F256HT-80I/MR runs LittlevGL or emWin graphical stacks at 80 MHz with sub-frame refresh rates. USB and CAN interfaces simultaneously support programming and fieldbus connectivity in factory HMI panels.
پیشنهادی
USB-to-CAN Fieldbus Bridges
Bridges USB host controllers to CAN fieldbus networks using the PIC32MX340F256HT-80I/MR's integrated USB and CAN peripherals. The 80 MHz MIPS32 core handles USB CDC command parsing and CAN frame forwarding concurrently without CPU stalls. The 256 KB Flash hosts both USB CDC and CAN firmware stacks, and the 64-VQFN package's 9x9 mm footprint fits compact industrial converter modules.
پیشنهادی
Low-Cost Graphical User Interfaces
Drives small TFT or OLED displays at human-interface latencies using the PIC32MX340F256HT-80I/MR's DMA controller to offload display refresh from the CPU. The 10-bit ADC reads touch inputs and analog controls, while 5 timers generate PWM backlight dimming and key-debounce timing. Industrial temperature grade ensures reliable outdoor or factory GUI operation.
پیشنهادی
Connected IoT Appliance Controllers
Acts as a USB-attached or CAN-connected controller inside connected consumer appliances such as smart kitchen or HVAC equipment. The PIC32MX340F256HT-80I/MR's USB OTG enables direct smartphone tethering for diagnostics, while the integrated ADC monitors temperature and sensor inputs. Industrial temperature range and RoHS compliance support worldwide appliance certification requirements.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC32MX340F256HT-80I/MR — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC32MX340F256H-80I/MR | PIC32MX340F128HT-80I/MR | PIC32MX330F064HT-V/MR | PIC32MX270F512HT-50I/MR | PIC32MX250F256HT-I/MR | PIC32MX150F256HT-I/MR |
|---|---|---|---|---|---|---|---|
| Package | 64-VQFN (MR) 9x9 mm | 64-VQFN (MR) 9x9 mm - same | 64-VQFN (MR) 9x9 mm - same | 64-VQFN (MR) 9x9 mm - same | 64-VQFN (MR) 9x9 mm - same | 64-VQFN (MR) 9x9 mm - same | 64-VQFN (MR) 9x9 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB | 256 KB | 128 KB | 64 KB | 512 KB | 256 KB | 256 KB |
| RAM | 64 KB | 64 KB | 32 KB | 16 KB | 64 KB | 32 KB | 32 KB |
| Maximum Clock | 80 MHz | 80 MHz | 80 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Operating Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +105C | -40C to +85C | -40C to +85C | -40C to +85C |
| CAN Interface | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | No CAN | No CAN |
| Packaging | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
تفاوت‌های کلیدی
- Highest Flash density in the MX340 family with USB and CAN (در مقابلPIC32MX340F128HT-80I/MR)
- Faster 80 MHz core compared to MX270/MX250/MX150 family parts (در مقابلPIC32MX250F256HT-I/MR)
- Industrial temperature grade with CAN bus (در مقابلPIC32MX150F256HT-I/MR)
یادداشت‌های طراحی
The 64-VQFN package has an exposed thermal pad (EP, pin 64) that must be soldered to a PCB thermal land of at least the same dimensions as the pad (approximately 5x5 mm). A 9x9 mm array of thermal vias (0.3 mm diameter, 0.5 mm pitch) connecting to an internal ground plane is recommended to achieve the datasheet-specified 31.7 C/W thermal resistance. Insufficient thermal land soldering can increase junction temperature by 15-25 C at typical industrial loads, reducing long-term reliability.
Decouple the four VDD/VSS pairs and the AVDD/AVSS pair with 100 nF X7R ceramic capacitors placed within 3 mm of each supply pin, plus one bulk 10 uF ceramic or tantalum capacitor near the package. The VUSB pin (pin 46) requires a separate 100 nF + 4.7 uF decoupling network even when USB is unused, to prevent internal regulator noise from corrupting ADC readings. Bulk capacitor ESR below 50 milliohm is recommended for switching loads.
Keep analog signals (AN0-AN15) routed over a continuous ground plane on an inner PCB layer to minimize noise coupling. Place the analog AVDD/AVSS LDO filter network within 5 mm of the AVDD pin. USB D+/D- traces (RG2, RG3) require 90-character, length-matched routing with a characteristic impedance of 90 ohms differential. Avoid routing digital signals across the analog section.
Do not leave MCLR (pin 63) floating. Tie MCLR through a 10 kohm pull-up to VDD and use a 100 nF cap to ground for noise filtering. Floating MCLR causes spurious resets in electrically noisy environments. Additionally, configure unused I/O pins as outputs driving low (not inputs) to minimize current leakage through the input structure, which can exceed 1 uA per pin in worst case.
The 16-channel 10-bit ADC achieves 1 MSPS only with a 6 MHz or higher peripheral bus clock and an adequate ADC sampling time. Use the PIC32's internal 2.5V bandgap as ADC reference only for low-precision measurements; for industrial 10-bit accuracy provide an external 2.5V or 3.0V reference with output impedance below 10 ohms. Average multiple ADC samples for digital measurements.
اطلاعات انطباق
RoHS compliant per Microchip product page; AEC-Q100 not applicable (consumer/industrial part). Halogen-free status not explicitly stated in distributor listings; refer to Microchip environmental compliance documentation for confirmation.
