PIC32MX340F128HT-80I/MR - 80MHz 32-bit MCU 128KB Flash | Microchip
MPN: PIC32MX340F128HT-80I/MR ✓ Hoạt độngPIC32MX340F128HT-80I/MR Tóm tắt
What is a 32-bit microcontroller? A 32-bit MCU is an embedded processor with a 32-bit wide data path, internal Flash for program storage, and SRAM for runtime data, plus integrated peripherals such as ADC, timers, UART, SPI, and I2C. The PIC32MX3xx family sits in the hierarchy: microcontroller -> 32-bit MCU -> MIPS M4K core -> PIC32MX sub-family -> power-conscious industrial/consumer devices. Compared to 8-bit/16-bit MCUs, a 32-bit core executes arithmetic and DSP-like operations in fewer cycles, supporting higher-throughput control loops, USB stacks, and graphical user interfaces.
Key features of the PIC32MX340F128HT-80I/MR include a 10-bit ADC with up to 16 channels and 1 Msps conversion rate, two I2C, two SPI, two UART interfaces, five 16-bit timers/counters, a Parallel Master Port (PMP) for graphics or external memory, and a real-time clock-calendar with external 32 kHz crystal support. The device integrates a JTAG debug port and trace interface aligned with the MIPS debug specification, and offers multiple power-saving modes such as Idle, Sleep, and deep Sleep.
Architecturally, the chip combines a single-cycle MIPS32 M4K integer core with a 5-stage pipeline, prefetch cache controller, and a multi-vector interrupt controller. The 128 KB Flash is split into program Flash and a separate boot Flash region for safe firmware updates, and the 32 KB SRAM is accessible as a unified data space. The peripherals are routed to the pins through Microchip's Peripheral Pin Select (PPS) subsystem on select lines, giving flexibility to remap digital functions.
Typical applications include industrial control and HMI panels, USB device/host peripherals, sensor aggregation nodes, low-cost graphics terminals, motor control and lighting controllers, and battery-powered consumer devices with USB connectivity. The 64-pin QFN footprint suits space-constrained boards that still need substantial GPIO and analog channels.
When designing, ensure the supply is decoupled with 100 nF plus bulk capacitance, keep analog traces short and away from switching nodes, and route the 8 MHz primary crystal within 5 mm of the OSCI/OSCO pads with a guard ring. For low-power designs, use Sleep mode aggressively and gate peripherals via the on-chip peripheral disable registers to minimize quiescent draw.
This page consolidates current distributor pricing, drop-in same-package alternatives, application guidance, and design notes beyond the manufacturer datasheet, giving procurement and engineering teams a single source for evaluation and BOM decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX340F128HT-80I/MR — 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 PIC32MX340F128HT-80I/MR (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, ADC, DMA Channels, USB.
PIC32MX340F128H-80I/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX340F128H-80V/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX330F064HT-V/MR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC32MX270F512HT-50I/MR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC32MX250F256HT-I/MR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC32MX340F128HT-80I/MR Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K 32-bit |
| Maximum CPU Frequency | 80 MHz |
| Program Flash Memory | 128 KB |
| SRAM | 32 KB |
| Supply Voltage Range | 2.5 V to 3.6 V |
| Digital I/O Pins | 53 |
| ADC | 10-bit, up to 16 channels |
| UART | 2 |
| SPI | 2 |
| I2C | 2 |
| Timers | 5 x 16-bit |
| Parallel Master Port (PMP) | Yes |
| Hộp | 64-pin QFN (MR), 9 x 9 mm |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân PIC32MX340F128HT-80I/MR
| Chân 1 | RB15 — I/O port B, bit 15 |
| Chân 2 | RB14 — I/O port B, bit 14 |
| Chân 3 | VSS — Ground |
| Chân 4 | VDD — Digital supply |
| Chân 5 | RA7 — I/O port A, bit 7 |
| Chân 6 | RA6 — I/O port A, bit 6 |
| Chân 7 | RA5 — I/O port A, bit 5 |
| Chân 8 | RA4 — I/O port A, bit 4 |
| Chân 9 | RA3 — I/O port A, bit 3 |
| Chân 10 | RA2 — I/O port A, bit 2 |
| Chân 11 | RA1 — I/O port A, bit 1 |
| Chân 12 | RA0 — I/O port A, bit 0 |
| Chân 13 | VSS — Ground |
| Chân 14 | AVDD — Analog supply |
| Chân 15 | AVSS — Analog ground |
| Chân 16 | RB13 — I/O port B, bit 13 |
| Chân 17 | RB12 — I/O port B, bit 12 |
| Chân 18 | RB11 — I/O port B, bit 11 |
| Chân 19 | RB10 — I/O port B, bit 10 |
| Chân 20 | RB9 — I/O port B, bit 9 |
| Chân 21 | RB8 — I/O port B, bit 8 |
| Chân 22 | RB7 — I/O port B, bit 7 |
| Chân 23 | RB6 — I/O port B, bit 6 |
| Chân 24 | RB5 — I/O port B, bit 5 |
| Chân 25 | RB4 — I/O port B, bit 4 |
| Chân 26 | RB3 — I/O port B, bit 3 |
| Chân 27 | RB2 — I/O port B, bit 2 |
| Chân 28 | RB1 — I/O port B, bit 1 |
| Chân 29 | RB0 — I/O port B, bit 0 |
| Chân 30 | VDD — Digital supply |
| Chân 31 | VSS — Ground |
| Chân 32 | RC15 — I/O port C, bit 15 |
| Chân 33 | RC14 — I/O port C, bit 14 |
| Chân 34 | RC13 — I/O port C, bit 13 |
| Chân 35 | RC12 — I/O port C, bit 12 |
| Chân 36 | RC11 — I/O port C, bit 11 |
| Chân 37 | RC10 — I/O port C, bit 10 |
| Chân 38 | RC9 — I/O port C, bit 9 |
| Chân 39 | RC8 — I/O port C, bit 8 |
| Chân 40 | RC7 — I/O port C, bit 7 |
| Chân 41 | RC6 — I/O port C, bit 6 |
| Chân 42 | RC5 — I/O port C, bit 5 |
| Chân 43 | RC4 — I/O port C, bit 4 |
| Chân 44 | RC3 — I/O port C, bit 3 |
| Chân 45 | RC2 — I/O port C, bit 2 |
| Chân 46 | RC1 — I/O port C, bit 1 |
| Chân 47 | RC0 — I/O port C, bit 0 |
| Chân 48 | OSC1 — Crystal oscillator input |
| Chân 49 | OSC2 — Crystal oscillator output |
| Chân 50 | VSS — Ground |
| Chân 51 | VDD — Digital supply |
| Chân 52 | RD15 — I/O port D, bit 15 |
| Chân 53 | RD14 — I/O port D, bit 14 |
| Chân 54 | RD13 — I/O port D, bit 13 |
| Chân 55 | RD12 — I/O port D, bit 12 |
| Chân 56 | RD11 — I/O port D, bit 11 |
| Chân 57 | RD10 — I/O port D, bit 10 |
| Chân 58 | RD9 — I/O port D, bit 9 |
| Chân 59 | RD8 — I/O port D, bit 8 |
| Chân 60 | RD7 — I/O port D, bit 7 |
| Chân 61 | RD6 — I/O port D, bit 6 |
| Chân 62 | RD5 — I/O port D, bit 5 |
| Chân 63 | RD4 — I/O port D, bit 4 |
| Chân 64 | EP — Exposed thermal pad (connect to VSS) |
Ứng dụng tiêu biểu
PIC32MX340F128HT-80I/MR phù hợp cho 6 Áp dụngs: Industrial HMI and Control Panels, USB Device and Embedded Host Peripherals, Sensor Aggregation and IoT Edge Nodes, Low-Cost Graphics and Display Terminals, Motor Control and Lighting Drivers, Consumer and Battery-Connected Devices.
Industrial HMI and Control Panels
The PIC32MX340F128HT-80I/MR drives industrial HMI panels with its 80 MHz MIPS M4K core and 53 digital I/O pins, sufficient for scan keys, drive character/graphic LCDs via PMP, and run modbus/RTU on UART. 128 KB Flash accommodates a full USB-CDC stack plus graphical menus. The 10-bit ADC at 1 Msps reads potentiometers and process sensors directly. Industrial -40C to +85C rating suits factory-floor environments.
Được đề xuất
USB Device and Embedded Host Peripherals
The PIC32MX340F128HT-80I/MR integrates a USB 2.0 full-speed device/host/OTG controller, making it a fit for USB keyboards, HID devices, mass-storage bridges, and USB-CDC virtual COM ports. 128 KB Flash hosts USB stacks like Microchip's MLA library. The 64-pin QFN (MR) package saves PCB area versus a TQFP, important in compact peripherals. With 80 MHz headroom, the MCU sustains full-speed USB throughput while running application code.
Được đề xuất
Sensor Aggregation and IoT Edge Nodes
Edge sensor nodes benefit from the PIC32MX340F128HT-80I/MR's 16-channel 10-bit ADC, two SPI, two I2C, and two UART, sufficient for several digital sensors plus analog channels. At 80 MHz, the MCU executes local DSP-style filtering before forwarding over UART or SPI. Industrial temperature range and a compact 64-pin QFN footprint suit field-deployed gateways. Low-power Sleep modes gate unused peripherals to extend battery life.
Được đề xuất
Low-Cost Graphics and Display Terminals
The PIC32MX340F128HT-80I/MR's Parallel Master Port (PMP) drives character LCDs, OLED panels, and small TFTs without an external controller. 32 KB SRAM holds frame buffers for modest monochrome or grayscale UIs. 80 MHz provides fluid menu rendering and responsive touch processing. The 64-pin QFN (MR) is well-suited to compact POS-style terminals where board real estate is limited and industrial temp rating is required.
Được đề xuất
Motor Control and Lighting Drivers
Brushless DC and stepper motor controllers use the PIC32MX340F128HT-80I/MR's five 16-bit timers and PWM outputs, while the 10-bit ADC samples current shunts and back-EMF at high rates. Industrial -40C to +85C rating supports lighting cabinets and motor cabinets. 128 KB Flash holds sensorless control algorithms and LED color-mixing tables. The 64-pin QFN package fits tight inverter PCBs alongside power stages.
Được đề xuất
Consumer and Battery-Connected Devices
USB-powered consumer devices leverage the PIC32MX340F128HT-80I/MR's integrated USB controller and full-speed PHY, simplifying charging-port and accessory designs. 128 KB Flash is enough for product UI, configuration storage, and USB stacks. The 64-pin QFN (MR) and 2.5-3.6 V operation match single-cell Li-ion or USB-powered rails. Designers targeting stricter battery budgets may prefer PIC32MX1xx/2xx series with lower Sleep current.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX340F128HT-80I/MR — 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 | PIC32MX340F128H-80I/MR | PIC32MX340F128H-80V/MR | PIC32MX330F064HT-V/MR | PIC32MX270F512HT-50I/MR | PIC32MX250F256HT-I/MR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin QFN (MR), 9x9 mm | 64-pin QFN (MR), 9x9 mm - same | 64-pin QFN (MR), 9x9 mm - same | 64-pin QFN (MR), 9x9 mm - same | 64-pin QFN (MR), 9x9 mm - same | 64-pin QFN (MR), 9x9 mm - same |
| Core | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit - same | MIPS32 M4K 32-bit - same | MIPS32 M4K 32-bit - same | MIPS32 M4K 32-bit - same | MIPS32 M4K 32-bit - same |
| Max CPU Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 50 MHz | 50 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 64 KB | 512 KB | 256 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 16 KB | 64 KB | 32 KB |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +105C (V) | -40C to +105C (V) | -40C to +85C (I) | -40C to +85C (I) |
| Packaging Form | Tape & Reel | Tube | Tube / T&R (per suffix) | Tape & Reel | Tape & Reel | Tape & Reel |
Bảo phân biệt quan trọng
- Identical silicon in tube packaging for low-cost development builds (vsPIC32MX340F128H-80I/MR)
- Extended -40C to +105C temperature grade in same footprint (vsPIC32MX340F128H-80V/MR)
- Faster 80 MHz core vs 50 MHz of PIC32MX270/250 families (vsPIC32MX270F512HT-50I/MR)
Ghi chú thiết kế
Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of every VDD/AVDD pin and a 10 uF bulk capacitor on each power rail. Use a ferrite bead between digital VDD and analog AVDD if analog accuracy is critical. Avoid sharing analog ground return paths with switching currents to prevent ADC offset drift.
Route the 8 MHz primary crystal within 5 mm of OSCI/OSCO, symmetrically and surrounded by a grounded guard ring. Keep clock traces short and away from high-current switching nodes. The exposed pad (EP) of the QFN-64 package must be soldered to a copper pad tied to VSS for thermal dissipation and electrical reference.
Do not exceed 3.6 V on VDD - the PIC32MX340 family is not 5 V tolerant on digital I/O. Add external ESD diodes on USB D+/D- lines and follow Microchip's USB layout guidelines (90-ohm differential, common-mode choke). Boot Flash configuration bits must be set in code or ICSP; verify fuses before locking the device to avoid bricking.
When using the Parallel Master Port (PMP) to drive displays, keep trace lengths matched within 25 mm and add 22-ohm series resistors to suppress reflections on long traces. For ADC sampling, use the on-chip digital filter and average multiple conversions for sub-LSB noise performance on the 10-bit ADC.
Thông tin tuân thủ
RoHS and lead-free status per Microchip product page. Standard I-grade part is not AEC-Q100 qualified; automotive use requires the /VAO ordering code.
