PIC32MX340F128L-80I/BG - 32-bit 80MHz MCU, 128KB Flash, 121-TFBGA
MPN: PIC32MX340F128L-80I/BG ✓ Hoạt độngPIC32MX340F128L-80I/BG Tóm tắt
A 32-bit microcontroller (MCU) is an integrated circuit that combines a high-performance processor core, program memory, data memory, and a rich peripheral set on a single die. PIC32MX MCUs leverage the MIPS32 instruction set with 5-stage pipeline and hardware multiply/divide, positioning them in the same performance tier as early ARM Cortex-M3 devices while offering Microchip's MPLAB development ecosystem. The 80 MHz core delivers 105 DMIPS, giving PIC32MX340F128L more than 2x the throughput of 16-bit PIC24/dsPIC parts at similar clock rates.
Key features of this part include 53 general-purpose I/O pins, 5 16-bit timers/counters, 2 I2C, 2 UART, 2 SPI, 2 CAN, 1 USB OTG, 1 PMP/PSP, and a 16-channel 10-bit ADC with 1 Msps conversion rate. The device operates from 2.5V to 3.6V, supports industrial -40C to +85C temperature range (I-grade), and provides two 32-bit shadow register sets for fast context switching in RTOS environments.
Architecturally, the PIC32MX340F128L uses a Harvard bus architecture with separate instruction and data paths, MIPS16e code compression for up to 40% smaller program footprint, and a peripheral bus that offloads DMA from the core. The on-chip DMA controller supports 8 channels and can move data between peripherals and RAM without CPU intervention - critical for streaming USB, CAN, and ADC data.
Typical applications include industrial control with CAN networking, USB-based data acquisition modules, medical instrumentation requiring 32-bit math, and embedded HMI with PMP-driven LCD. The integrated USB OTG makes it well suited for point-of-sale terminals and portable diagnostic tools that need to enumerate as USB device or host.
When designing with this device, plan a 3.3V LDO supply with bulk + bypass capacitance near each VDD/VSS pair. The 121-ball TFBGA requires 4-layer PCB with microvia or via-in-pad for reliable manufacturing; budget for X-ray inspection on production boards. Configure the on-chip LPRC/FRC oscillators and use the PLL only when peripheral timing jitter is critical.
This page synthesizes distributor pricing, pin-compatible drop-in alternatives within the PIC32MX family, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX340F128L-80I/BG — 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 PIC32MX340F128L-80I/BG (cùng hình factor và footprint) — khác nhau ở ADC, Package, DMA Channels, Core Architecture, Operating Temperature.
PIC32MX340F128L-80V/BG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX340F128HT-80I/MR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC32MX330F064H-I/MR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC32MX270F256D-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC32MX274F256B-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC32MX340F128L-80I/BG Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K |
| Core Frequency | 80 MHz |
| Core Performance | 105 DMIPS |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (SRAM) | 32 KB |
| Operating Voltage | 2.5 V to 3.6 V |
| I/O Pins | 53 |
| ADC | 10-bit, 16 channels, 1 Msps |
| USB | USB 2.0 Full-Speed OTG |
| CAN | 2x CAN 2.0b |
| UART | 2 |
| SPI | 2 |
| I2C | 2 |
| Timers | 5 x 16-bit |
| DMA Channels | 8 |
| Hộp | 121-TFBGA (10x10 mm) |
| Nhiệt độ hoạt động | -40 C to +85 C (I-grade) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MX340F128L-80I/BG
| Chân A1 | VSS — Ground |
| Chân A2 | PMD0 — Parallel Master Port Data 0 / GPIO |
| Chân A3 | PMD4 — Parallel Master Port Data 4 / GPIO |
| Chân A4 | PMD8 — Parallel Master Port Data 8 / GPIO |
| Chân A5 | SDA2 — I2C2 Data |
| Chân A6 | U2RX — UART2 Receive / RPA4 |
| Chân A7 | U2TX — UART2 Transmit / RPA8 |
| Chân A8 | U1TX — UART1 Transmit / RPA0 |
| Chân A9 | U1RX — UART1 Receive / RPA1 |
| Chân A10 | VDD — Supply voltage 2.5-3.6V |
| Chân B1 | OSC1 — Crystal oscillator input |
| Chân B2 | PMD1 — Parallel Master Port Data 1 / GPIO |
| Chân B3 | PMD5 — Parallel Master Port Data 5 / GPIO |
| Chân B4 | PMD9 — Parallel Master Port Data 9 / GPIO |
| Chân B5 | SCL2 — I2C2 Clock |
| Chân B6 | C1RX — CAN1 Receive |
| Chân B7 | C1TX — CAN1 Transmit |
| Chân B8 | C2RX — CAN2 Receive |
| Chân B9 | C2TX — CAN2 Transmit |
| Chân B10 | VSS — Ground |
| Chân C1 | OSC2 — Crystal oscillator output |
| Chân C2 | PMD2 — Parallel Master Port Data 2 / GPIO |
| Chân C3 | PMD6 — Parallel Master Port Data 6 / GPIO |
| Chân C4 | PMD10 — Parallel Master Port Data 10 / GPIO |
| Chân C5 | SDA1 — I2C1 Data |
| Chân C6 | SCL1 — I2C1 Clock |
| Chân C7 | SDI1 — SPI1 Data In / RPF5 |
| Chân C8 | SDO1 — SPI1 Data Out / RPF4 |
| Chân C9 | CS1 — SPI1 Chip Select / RPF3 |
| Chân C10 | SCK1 — SPI1 Clock |
| Chân D1 | VSS — Ground |
| Chân D2 | PMD3 — Parallel Master Port Data 3 / GPIO |
| Chân D3 | PMD7 — Parallel Master Port Data 7 / GPIO |
| Chân D4 | PMD11 — Parallel Master Port Data 11 / GPIO |
| Chân D5 | AN0 — Analog input 0 |
| Chân D6 | AN1 — Analog input 1 |
| Chân D7 | AN2 — Analog input 2 |
| Chân D8 | AN3 — Analog input 3 |
| Chân D9 | AN4 — Analog input 4 |
| Chân D10 | AN5 — Analog input 5 |
| Chân E1 | TCK — JTAG Test Clock |
| Chân E2 | PMRD — Parallel Master Read / GPIO |
| Chân E3 | PMWR — Parallel Master Write / GPIO |
| Chân E4 | PMA0 — Parallel Master Address 0 |
| Chân E5 | AN6 — Analog input 6 |
| Chân E6 | AN7 — Analog input 7 |
| Chân E7 | AN8 — Analog input 8 |
| Chân E8 | AN9 — Analog input 9 |
| Chân E9 | AN10 — Analog input 10 |
| Chân E10 | AN11 — Analog input 11 |
| Chân F1 | TMS — JTAG Test Mode Select |
| Chân F2 | TDI — JTAG Test Data In |
| Chân F3 | TDO — JTAG Test Data Out |
| Chân F4 | PMCS1 — Parallel Master Chip Select 1 |
| Chân F5 | AN12 — Analog input 12 |
| Chân F6 | AN13 — Analog input 13 |
| Chân F7 | AN14 — Analog input 14 |
| Chân F8 | AN15 — Analog input 15 |
| Chân F9 | VDD — Supply voltage 2.5-3.6V |
| Chân F10 | VSS — Ground |
| Chân G1 | TRCLK — Trace Clock |
| Chân G2 | TRD0 — Trace Data 0 |
| Chân G3 | TRD1 — Trace Data 1 |
| Chân G4 | TRD2 — Trace Data 2 |
| Chân G5 | TRD3 — Trace Data 3 |
| Chân G6 | CVREF — Comparator Voltage Reference |
| Chân G7 | C1IN- — Comparator 1 Inverting Input |
| Chân G8 | C1IN+ — Comparator 1 Non-Inverting Input |
| Chân G9 | C2IN- — Comparator 2 Inverting Input |
| Chân G10 | C2IN+ — Comparator 2 Non-Inverting Input |
| Chân H1 | D- — USB D- line |
| Chân H2 | D+ — USB D+ line |
| Chân H3 | VBUS — USB VBUS detect |
| Chân H4 | VUSB — USB 3.3V regulator output |
| Chân H5 | PGEC1 — ICSP Program Clock 1 |
| Chân H6 | PGED1 — ICSP Program Data 1 |
| Chân H7 | PGEC2 — ICSP Program Clock 2 |
| Chân H8 | PGED2 — ICSP Program Data 2 |
| Chân H9 | MCLR — Master Clear reset |
| Chân H10 | VDD — Supply voltage 2.5-3.6V |
| Chân J1 | SOSCO — Secondary oscillator output (32.768 kHz) |
| Chân J2 | SOSCI — Secondary oscillator input (32.768 kHz) |
| Chân J3 | RTCC — Real-Time Clock Calendar output |
| Chân J4 | OC1 — Output Compare 1 |
| Chân J5 | OC2 — Output Compare 2 |
| Chân J6 | OC3 — Output Compare 3 |
| Chân J7 | OC4 — Output Compare 4 |
| Chân J8 | OC5 — Output Compare 5 |
| Chân J9 | IC1 — Input Capture 1 |
| Chân J10 | IC2 — Input Capture 2 |
| Chân K1 | INT0 — External Interrupt 0 |
| Chân K2 | INT1 — External Interrupt 1 |
| Chân K3 | INT2 — External Interrupt 2 |
| Chân K4 | INT3 — External Interrupt 3 |
| Chân K5 | INT4 — External Interrupt 4 |
| Chân K6 | T1CK — Timer1 Clock input |
| Chân K7 | T2CK — Timer2 Clock input |
| Chân K8 | T3CK — Timer3 Clock input |
| Chân K9 | T4CK — Timer4 Clock input |
| Chân K10 | T5CK — Timer5 Clock input |
| Chân L1 | RB0 — GPIO RB0 |
| Chân L2 | RB1 — GPIO RB1 |
| Chân L3 | RB2 — GPIO RB2 |
| Chân L4 | RB3 — GPIO RB3 |
| Chân L5 | RB4 — GPIO RB4 |
| Chân L6 | RB5 — GPIO RB5 |
| Chân L7 | RB6 — GPIO RB6 |
| Chân L8 | RB7 — GPIO RB7 |
| Chân L9 | RB8 — GPIO RB8 |
| Chân L10 | RB9 — GPIO RB9 |
| Chân M1 | RC1 — GPIO RC1 |
| Chân M2 | RC2 — GPIO RC2 |
| Chân M3 | RC3 — GPIO RC3 |
| Chân M4 | RC4 — GPIO RC4 |
| Chân M5 | RD0 — GPIO RD0 |
| Chân M6 | RD1 — GPIO RD1 |
| Chân M7 | RD2 — GPIO RD2 |
| Chân M8 | RD3 — GPIO RD3 |
| Chân M9 | RD4 — GPIO RD4 |
| Chân M10 | RD5 — GPIO RD5 |
Ứng dụng tiêu biểu
PIC32MX340F128L-80I/BG phù hợp cho 6 Áp dụngs: Industrial CAN Gateway Module, USB Data Acquisition Device, Portable Medical Diagnostic Tool, Embedded HMI with LCD, Point-of-Sale (POS) Terminal, Automotive Body Control Module.
Industrial CAN Gateway Module
The PIC32MX340F128L-80I/BG is well suited for industrial CAN gateway designs thanks to its dual CAN 2.0b controllers and 8-channel DMA engine, which can sustain 1 Mbit/s CAN traffic with near-zero CPU loading. Its 128 KB Flash and 32 KB SRAM hold a full CANopen or J1939 stack plus application logic, and the 80 MHz MIPS32 core delivers 105 DMIPS for protocol translation between CAN, UART, and USB. The 53 I/O pins provide ample headroom for digital inputs, relay drivers, and an SPI-connected isolated transceiver. The 121-TFBGA 10x10 mm package allows the gateway to fit in a compact DIN-rail enclosure. The industrial -40C to +85C temperature grade is fully compatible with factory-floor environments.
Được đề xuất
USB Data Acquisition Device
The PIC32MX340F128L-80I/BG's USB 2.0 full-speed On-The-Go controller and 1 Msps 10-bit ADC make it a strong fit for USB-connected data acquisition modules. The 8-channel DMA can stream ADC samples directly into RAM and then to the USB endpoint without CPU intervention, sustaining continuous acquisition at the full 1 Msps rate. The 128 KB Flash accommodates a USB HID or CDC stack plus custom command processing, and the 32 KB SRAM doubles as a sample buffer. The MIPS32 core handles host commands and on-the-fly DSP operations. The 121-TFBGA 10x10 mm footprint supports portable instruments with limited PCB area, while the 2.5V-3.6V supply works directly from USB bus power after LDO regulation.
Được đề xuất
Portable Medical Diagnostic Tool
The PIC32MX340F128L-80I/BG is a good fit for portable medical diagnostic tools where its 32-bit performance, 128 KB Flash, and 32 KB SRAM support signal-processing algorithms for sensor data (SpO2, ECG, temperature) while the 16-channel 10-bit ADC captures multiple physiological inputs. The dual CAN interfaces allow integration into hospital CAN-based asset tracking, and the USB OTG port enables direct connection to a tablet for data display. The industrial -40C to +85C temperature range covers most clinical environments, and the 121-TFBGA package keeps the PCB small enough for handheld form factors. Note: medical applications still require IEC 60601 compliance at the system level.
Được đề xuất
Embedded HMI with LCD
The PIC32MX340F128L-80I/BG's parallel master port (PMP/PSP) can directly drive character and graphical LCDs up to QVGA resolution, while the 80 MHz core handles button scanning, menu navigation, and real-time data updates. The 128 KB Flash stores full menus and localized strings, and the 32 KB SRAM holds the frame buffer for a small graphical display. The 53 I/O pins accept rotary encoders, keypads, and status LEDs, and the two UARTs connect to a Wi-Fi or Bluetooth module for cloud connectivity. The 121-TFBGA package is appropriate for compact HMI front panels in appliances and machine tools where the -40C to +85C industrial range supports factory use.
Được đề xuất
Point-of-Sale (POS) Terminal
The PIC32MX340F128L-80I/BG suits point-of-sale terminal designs where USB OTG enables connection to barcode scanners, receipt printers, and magnetic card readers, while the 2 UARTs drive a thermal printer and external modem. The 80 MHz MIPS32 core processes transaction encryption and the 128 KB Flash holds the payment library stack; 32 KB SRAM supports transaction buffering. The 16-channel ADC reads battery voltage and keypad inputs, and the dual CAN controllers support connection to in-store network backbones in modern retail environments. The 121-TFBGA 10x10 mm package fits inside compact handheld POS hardware. Designers should add a secure element for PCI compliance at the system level.
Được đề xuất
Automotive Body Control Module
The PIC32MX340F128L-80I/BG's dual CAN 2.0b controllers, 53 I/O pins, and 80 MHz core support body control modules that integrate window lifts, mirror adjustment, lighting, and door locks via CAN. The 128 KB Flash stores the body control application plus a UDS diagnostic stack, and the 32 KB SRAM buffers diagnostic events. The 8-channel DMA offloads repetitive CAN message processing. Although the -40C to +85C industrial temperature range covers most cabin applications, under-hood deployments need the PIC32MX340F128L-80V/BG variant (-40C to +105C). The 121-TFBGA 10x10 mm package allows the BCM to fit into tight A-pillar or door-module enclosures.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX340F128L-80I/BG — 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 | PIC32MX340F128L-80V/BG | PIC32MX340F128HT-80I/MR | PIC32MX330F064H-I/MR | PIC32MX270F256D-I/ML | PIC32MX274F256B-I/SO |
|---|---|---|---|---|---|---|
| Package | 121-TFBGA (10x10 mm) | 121-TFBGA (10x10 mm) - same | QFN-64 (MR) | QFN-64 (MR) | QFN-28 (ML) | SOIC-28 (SO) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Frequency | MIPS32 M4K / 80 MHz | MIPS32 M4K / 80 MHz | MIPS32 M4K / 80 MHz | MIPS32 M4K / 80 MHz | MIPS32 M4K / 50 MHz | MIPS32 M4K / 72 MHz |
| Flash | 128 KB | 128 KB | 128 KB | 64 KB | 256 KB | 256 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 8 KB | 32 KB | 32 KB |
| I/O Pins | 53 | 53 | 53 | 53 | 21 | 23 |
| USB / CAN | USB OTG + 2x CAN | USB OTG + 2x CAN | USB OTG + 2x CAN | USB OTG + 2x CAN | USB OTG, no CAN | USB Device, no CAN |
| Temperature Grade | -40C to +85C (I-grade) | -40C to +105C (V-grade) | -40C to +85C (I-grade) | -40C to +85C (I-grade) | -40C to +85C (I-grade) | -40C to +85C (I-grade) |
Bảo phân biệt quan trọng
- Highest-density PIC32MX3XX/4XX with both USB OTG and dual CAN (vsPIC32MX270F256D-I/ML)
- 53 I/O pins in compact 121-TFBGA (vsPIC32MX274F256B-I/SO)
- Industrial temperature variant available (vsPIC32MX330F064H-I/MR)
- Extended-temperature V-grade option exists for under-hood use (vsPIC32MX340F128L-80V/BG)
Ghi chú thiết kế
PIC32MX340F128L-80I/BG requires a regulated 2.5V-3.6V supply on each VDD pin (multiple VSS/VDD pairs on 121-TFBGA). Place a 10 uF bulk + 0.1 uF decoupling cap on every VDD/VSS pair within 3 mm of the ball. The USB VUSB pin needs its own 0.1 uF + 4.7 uF filter capacitor; share the same 3.3V rail but isolate with a ferrite bead if the analog 3.3V reference is critical. A 32.768 kHz crystal on SOSCO/SOSCI is required for RTCC and accurate USB SOF timing.
The 121-TFBGA at 10x10 mm has 0.8 mm ball pitch and requires 4-layer PCB with microvias or via-in-pad for reliable assembly. Use 0.4 mm via diameter and 0.2 mm drill on a 1 oz copper stack-up. Place ground plane on layer 2 directly under the BGA to provide a low-impedance return path. Add 1.0 mm of keep-out around the package outline for rework clearance. Production boards should be inspected with X-ray to verify BGA joint quality.
Do not confuse PIC32MX340F128L (this part) with PIC32MX340F128H variants - the 'L' suffix denotes the 121-TFBGA package while 'H' is a QFN/QFP package family. Also note the -80I/PT variant uses TQFP-64 and is NOT a drop-in. Always verify the package suffix in the full MPN before ordering. Configuration bits must be set in the IDE for the correct oscillator mode and PLL multiplier; leaving FRC default at 8 MHz is a common prototype slowdown.
Route the 80 MHz traces (SDO1, SCK1, USB D+/D-) with 50 ohm controlled impedance and length matching within 0.5 mm. Keep the USB D+/D- pair matched to within 0.1 mm and isolated from clock traces. The JTAG / trace port (TCK/TMS/TDI/TDO) should be brought to a 0.1 inch header for debugging; trace port pins TRD0-TRD3 plus TRCLK are multiplexed with GPIO. Add a 4.7 kohm pull-up on the MCLR pin and a 1 nF cap to ground for clean reset.
The 16-channel 10-bit ADC is sensitive to switching noise from the digital supply. Add a 10 ohm ferrite + 0.1 uF cap on the analog AVdd pin, and route analog inputs away from clock traces. The internal 1 Msps ADC requires an acquisition time of at least 132 ns; do not toggle I/O during sampling or use the dedicated ADC sampling capacitor correctly. For precision measurement above 1 ksps, average 16 samples and use DMA to free the CPU.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature grade; not AEC-Q100 qualified for automotive - use PIC32MX330/340 V-grade or PIC32MX5XX/6XX/7XX family for AEC-Q100 applications. Halogen-free status not stated in available data.
