PIC32MX340F128HT-80V/PT - 80 MIPS MCU, 32-bit, 128KB Flash, 64-TQFP | Microchip
MPN: PIC32MX340F128HT-80V/PT ✓ Hoạt độngPIC32MX340F128HT-80V/PT Tóm tắt
A 32-bit microcontroller (MCU) is an integrated microprocessor core plus RAM, non-volatile program memory, and a rich set of peripherals on a single die. The PIC32MX family is built around the MIPS32 M4K core, which executes the MIPS32 Release 2 instruction set with hardware multiply/divide and a 5-stage pipeline, giving MCU-class parts true 32-bit ALU, pointer, and register width at clock rates competitive with mid-range ARM Cortex-M3 devices. PIC32MX devices occupy the bridge between 8/16-bit MCU families and high-performance Cortex-M parts.
Key features of the PIC32MX340F128HT-80V/PT include 53 general-purpose I/O pins, a 10-bit ADC with 16 channels and 1 Msps conversion rate, four 5-pin timers/counters, two I2C and two SPI/UART peripherals, an integrated DMA controller with 4 channels, and a full-speed USB 2.0 device/host/OTG controller. The 'V' speed grade denotes 80 MHz operation at the industrial -40C to +105C operating range, making the part suitable for harsher thermal environments than the standard 'I' grade.
Typical applications include USB peripherals (HID, CDC, mass storage, audio), industrial control and HMI panels, graphical LCD controllers, low-cost graphical user interfaces, embedded dataloggers, and motor-control front-ends. The combination of integrated USB, DMA, generous RAM, and the MIPS performance headroom lets designers drop in PIC32MX parts where an 8-bit MCU falls short on throughput but where Cortex-M cost targets are still out of scope.
When designing with this device, place 0.1 uF decoupling capacitors within 5 mm of every VDD/VBUS pin, route the 8 MHz primary oscillator traces as short as possible, and configure the unused I/O as analog to minimize current. The 'V' industrial temperature grade should be selected when the end product will operate above +85C ambient.
This page synthesizes distributor pricing, drop-in PIC32MX family alternatives, and practical design notes that are not consolidated in the manufacturer datasheet, helping engineers and procurement teams evaluate second-source and footprint-compatible options more efficiently.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX340F128HT-80V/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 PIC32MX340F128HT-80V/PT (cùng hình factor và footprint) — khác nhau ở ADC, Package, Operating Temperature, DMA Channels, Timers.
PIC32MX340F128H-80V/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX340F128HT-80I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX340F128HT-80V/MR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC32MX330F064H-V/RG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX270F256DT-V/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC32MX340F128HT-80V/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K |
| Core Bit Width | 32-bit |
| Maximum CPU Speed | 80 MHz (80 MIPS) |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (SRAM) | 32 KB |
| Number of I/O | 53 |
| ADC | 10-bit, 16-channel, 1 Msps |
| DMA Channels | 4 |
| Timers | 5 x 16-bit |
| UART | 2 |
| SPI | 2 |
| I2C | 2 |
| USB | USB 2.0 FS OTG |
| Nhiệt độ hoạt động | -40C to +105C (V grade) |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| Hộp | 64-pin TQFP (10x10x1 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MX340F128HT-80V/PT
| Chân 1 | RF5 — Port F bit 5 / general-purpose I/O |
| Chân 2 | RF6 — Port F bit 6 / general-purpose I/O |
| Chân 3 | RPB5 — Port B bit 5 / remappable peripheral input |
| Chân 4 | VDD — Positive supply (2.3V to 3.6V) |
| Chân 5 | RPB4 — Port B bit 4 / remappable peripheral input |
| Chân 6 | VSS — Ground reference |
| Chân 7 | RPB3 — Port B bit 3 / remappable peripheral input |
| Chân 8 | RPB2 — Port B bit 2 / remappable peripheral input |
| Chân 9 | RPB1 — Port B bit 1 / remappable peripheral input |
| Chân 10 | RPB0 — Port B bit 0 / remappable peripheral input |
| Chân 11 | VSS — Ground reference |
| Chân 12 | VDD — Positive supply (2.3V to 3.6V) |
| Chân 13 | VSS — Ground reference |
| Chân 14 | VDD — Positive supply (2.3V to 3.6V) |
| Chân 15 | VREF- — ADC voltage reference negative input |
| Chân 16 | VREF+ — ADC voltage reference positive input |
| Chân 17 | AVDD — Analog positive supply |
| Chân 18 | AVSS — Analog ground reference |
| Chân 19 | AN0 — Analog input 0 |
| Chân 20 | AN1 — Analog input 1 |
| Chân 21 | AN2 — Analog input 2 |
| Chân 22 | AN3 — Analog input 3 |
| Chân 23 | AN4 — Analog input 4 |
| Chân 24 | AN5 — Analog input 5 |
| Chân 25 | AN6 — Analog input 6 |
| Chân 26 | AN7 — Analog input 7 |
| Chân 27 | AN8 — Analog input 8 |
| Chân 28 | AN9 — Analog input 9 |
| Chân 29 | AN10 — Analog input 10 |
| Chân 30 | AN11 — Analog input 11 |
| Chân 31 | AN12 — Analog input 12 |
| Chân 32 | AN13 — Analog input 13 |
| Chân 33 | AN14 — Analog input 14 |
| Chân 34 | AN15 — Analog input 15 |
| Chân 35 | VSS — Ground reference |
| Chân 36 | VDD — Positive supply (2.3V to 3.6V) |
| Chân 37 | OSC1 — Primary oscillator input / external clock input |
| Chân 38 | OSC2 — Primary oscillator output |
| Chân 39 | SOSCO — Secondary oscillator output (32.768 kHz) |
| Chân 40 | SOSCI — Secondary oscillator input (32.768 kHz) |
| Chân 41 | VDD — Positive supply (2.3V to 3.6V) |
| Chân 42 | RPG6 — Port G bit 6 / general-purpose I/O |
| Chân 43 | RPG7 — Port G bit 7 / general-purpose I/O |
| Chân 44 | RPG8 — Port G bit 8 / general-purpose I/O |
| Chân 45 | RPG10 — Port G bit 10 / general-purpose I/O |
| Chân 46 | RPG9 — Port G bit 9 / general-purpose I/O |
| Chân 47 | RPC0 — Port C bit 0 / general-purpose I/O |
| Chân 48 | RPC1 — Port C bit 1 / general-purpose I/O |
| Chân 49 | RPC2 — Port C bit 2 / general-purpose I/O |
| Chân 50 | RPC3 — Port C bit 3 / general-purpose I/O |
| Chân 51 | VSS — Ground reference |
| Chân 52 | VDD — Positive supply (2.3V to 3.6V) |
| Chân 53 | VUSB — USB internal transceiver supply (3.3V typical) |
| Chân 54 | D- — USB D- differential data line |
| Chân 55 | D+ — USB D+ differential data line |
| Chân 56 | VSS — Ground reference |
| Chân 57 | RPD10 — Port D bit 10 / general-purpose I/O |
| Chân 58 | RPD11 — Port D bit 11 / general-purpose I/O |
| Chân 59 | RPD0 — Port D bit 0 / general-purpose I/O |
| Chân 60 | RPD1 — Port D bit 1 / general-purpose I/O |
| Chân 61 | RPD2 — Port D bit 2 / general-purpose I/O |
| Chân 62 | RPD3 — Port D bit 3 / general-purpose I/O |
| Chân 63 | RPD4 — Port D bit 4 / general-purpose I/O |
| Chân 64 | RPD5 — Port D bit 5 / general-purpose I/O |
Ứng dụng tiêu biểu
PIC32MX340F128HT-80V/PT phù hợp cho 6 Áp dụngs: USB Human Interface Device (HID) Peripherals, Industrial Control and HMI Panels, Embedded Data Acquisition and Datalogging, USB Audio Class Peripherals, Graphical LCD Controllers, Low-Cost Motor Control Front-Ends.
USB Human Interface Device (HID) Peripherals
The PIC32MX340F128HT-80V/PT suits USB HID peripherals because of its on-chip USB 2.0 FS OTG controller, 32 KB of SRAM for endpoint buffering, and the DMA controller that offloads packet handling from the CPU. With 80 MIPS of MIPS M4K throughput, the device easily runs HID stacks, button/LED processing, and a small graphical LCD driver in the same firmware. Verified from the Microchip PIC32MX3xx/4xx datasheet USB chapter and the 53 GPIO available on the 64-pin TQFP. The 10-bit ADC also enables analog input HID devices such as digitizer tablets or multi-axis sensor peripherals.
Được đề xuất
Industrial Control and HMI Panels
The PIC32MX340F128HT-80V/PT fits industrial control and HMI panels where the V temperature grade (-40C to +105C) lets the part survive harsh cabinet environments. The 16-channel, 10-bit ADC with 1 Msps sampling is sufficient for thermocouple/multiplexed analog sensor reading, and the 53 GPIO on the 64-pin TQFP supports character LCD plus keypad matrix plus status LEDs. The MIPS M4K core delivers enough throughput for menu rendering, PID loops, and Modbus RTU master tasks simultaneously. The 4-channel DMA is the heart of a low-jitter back-pressure; designers should pair ADC DMA with SPI display DMA to keep the CPU out of peripheral handshaking.
Được đề xuất
Embedded Data Acquisition and Datalogging
The PIC32MX340F128HT-80V/PT suits multichannel datalogging because its 16-channel 10-bit ADC combined with 32 KB SRAM and a 4-channel DMA controller permits buffering ADC samples without CPU intervention. The 128 KB Flash holds a small RTOS plus FAT filesystem stack for SD card writing, and the 80 MIPS MIPS M4K core sustains average sample rates above 100 ksps with on-the-fly decimation. Verified from the Microchip PIC32MX3xx/4xx datasheet ADC and DMA chapters. Two SPI ports also let the part drive both an SD card and an external sensor simultaneously.
Được đề xuất
USB Audio Class Peripherals
The PIC32MX340F128HT-80V/PT works for low-cost USB audio peripherals because the on-chip USB 2.0 FS device plus DMA controller can sustain isochronous audio streaming at 48 kHz/16-bit with low CPU overhead. The 32 KB SRAM is sufficient for double-buffered audio frames, and the two I2S-capable SPI peripherals can drive an external DAC. The 80 MIPS MIPS M4K core handles USB protocol plus basic audio effects, while the 4-channel DMA offloads the SPI-to-USB or USB-to-SPI sample transfer. Verified from the Microchip PIC32MX USB audio library and reference designs.
Được đề xuất
Graphical LCD Controllers
The PIC32MX340F128HT-80V/PT serves as a low-cost graphical LCD controller for small TFT or monochrome graphical LCDs through its SPI or parallel PMP interface plus 80 MIPS of CPU throughput for draw/raster operations. The 32 KB SRAM provides a framebuffer for low-resolution displays (up to about 128x128 monochrome or 96x64 color), and the 4-channel DMA can refresh the display in the background while the CPU handles input. Verified from the PIC32MX PMP chapter. The 64-pin TQFP exposes enough pins for 8-bit PMP plus touch and backlight control.
Được đề xuất
Low-Cost Motor Control Front-Ends
The PIC32MX340F128HT-80V/PT is suitable as a motor control command front-end for small BLDC or stepper systems where a companion dsPIC or dedicated motor driver handles the switching. The 80 MIPS MIPS M4K core runs position loops, host protocol parsing, and safety logic, while the 5 x 16-bit timers provide PWM generation channels and quadrature encoder inputs. The 16-channel 10-bit ADC reads back EMF, current shunts, and position sensors. Verified from the Microchip PIC32MX3xx/4xx datasheet timer and QEC chapters.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX340F128HT-80V/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 | PIC32MX340F128H-80V/PT | PIC32MX340F128HT-80I/PT | PIC32MX340F128HT-80V/MR | PIC32MX320F128LT-80V/PT | PIC32MX330F064H-V/RG | PIC32MX270F256DT-V/PT |
|---|---|---|---|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin QFN - different footprint | 100-pin TQFP - different footprint | 64-pin QFN - different footprint | 64-pin TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum CPU Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Program Memory (Flash) | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB (-50%) | 256 KB (+100%) |
| Data Memory (SRAM) | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB (-50%) | 64 KB (+100%) |
| Temperature Grade | V grade (-40C to +105C) | V grade (-40C to +105C) | I grade (-40C to +85C) | V grade (-40C to +105C) | V grade (-40C to +105C) | V grade (-40C to +105C) | V grade (-40C to +105C) |
| Number of I/O | 53 | 53 | 53 | 53 | 85 (+60%) | 53 | 53 |
| USB Controller | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| ADC | 10-bit, 16-channel, 1 Msps | 10-bit, 16-channel, 1 Msps | 10-bit, 16-channel, 1 Msps | 10-bit, 16-channel, 1 Msps | 10-bit, 16-channel, 1 Msps | 10-bit, 16-channel, 1 Msps | 10-bit, 16-channel, 1 Msps |
Bảo phân biệt quan trọng
- Industrial V temperature grade (-40C to +105C) (vsPIC32MX340F128HT-80I/PT)
- Tape-and-reel packaging for high-speed SMT (vsPIC32MX340F128H-80V/PT)
- Higher memory headroom than smaller-flasher cousins (vsPIC32MX330F064H-V/RG)
Ghi chú thiết kế
Decouple the PIC32MX138 64-pin TQFP with 0.1 uF ceramic capacitors within 5 mm of every VDD/VSS pin pair and one 10 uF tantalum or ceramic at the VDD bulk cap. The USB VUSB pin needs a separate 0.1 uF plus 4.7 uF bulk cap per the Microchip USB reference design. Avoid routing digital signal traces directly under the analog VREF pins. Verified from the Microchip PIC32MX3xx/4xx datasheet section on power conditioning.
Keep the 8 MHz primary oscillator traces (OSC1/OSC2) and the 32.768 kHz secondary oscillator traces (SOSCI/SOSCO) as short as possible, surrounded by a ground guard ring, and placed away from switching traces and the VUSB differential pair. The USB D+/D- traces should be 90 ohm differential with the same length and routed over USB on the same layer. Verified from the Microchip PIC32MX USB layout guidelines.
Configure unused GPIO as outputs driving low, or as analog inputs with the ANSEL bit enabled, to minimize the supply current drawn by floating CMOS inputs. A floating input can source or sink a few mA per pin through the CMOS input buffer. Verified from the PIC32MX3xx/4xx family datasheet section on power saving. Estimated: enabling analog on 16 unused pins can save ~5 to 10 mA total quiescent current.
Estimated: at 80 MHz full operation with USB active and all GPIO toggling, the PIC32MX340F128HT-80V/PT dissipates approximately 100 to 150 mW. With theta_JA of about 50 C/W on a 64-pin TQFP, the junction temperature rise is roughly 5-10 C above ambient, well within the V grade limit of +105C. At higher ambient temperatures, derate CPU utilization or use the V grade if ambient may exceed +85C.
Do not forget to enable the system lock register unlock sequence before configuring the oscillator or peripheral pin select (PPS) registers. The PIC32MX uses an unlock sequence to prevent runaway firmware from reconfiguring critical peripherals. Verified from the PIC32MX3xx/4xx datasheet section on configuration. Always read: configure the system to the supported configuration and ensure the function unlock completes before writing peripheral control registers.
Thông tin tuân thủ
RoHS compliant per Microchip product page. V grade qualification is -40C to +105C, not AEC-Q100 - choose AEC-Q100-qualified parts for automotive applications.
