PIC32MX340F128L-80I/BG - 32-bit 80MHz MCU, 128KB Flash, 121-TFBGA
料号： PIC32MX340F128L-80I/BG ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.74 | $77.40 |
| 100 | $6.95 | $695.00 |
| 500 | $6.21 | $3,105.00 |
| 1,000 | $5.48 | $5,480.00 |
PIC32MX340F128L-80I/BG 概述
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.
直接替换替代料： PIC32MX340F128L-80I/BG ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC32MX340F128L-80I/BG （相同外形与封装尺寸） ——差异在于 ADC, Package, DMA Channels, Core Architecture, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC32MX340F128L-80V/BG
✅ 直接替换✓ 有现货
$4.78 / 个
查看数据手册 →PIC32MX340F128HT-80I/MR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.12 / 个
查看数据手册 →PIC32MX330F064H-I/MR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.1 / 个
查看数据手册 →PIC32MX270F256D-I/ML
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.18 / 个
查看数据手册 →PIC32MX274F256B-I/SO
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.35 / 个
查看数据手册 →PIC32MX340F128L-80I/BG 最大额定值与电气特性
| 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 |
| 封装 | 121-TFBGA (10x10 mm) |
| 工作温度 | -40 C to +85 C (I-grade) |
| RoHS 状态 | Compliant |
PIC32MX340F128L-80I/BG 引脚配置
| 引脚 A1 | VSS — Ground |
| 引脚 A2 | PMD0 — Parallel Master Port Data 0 / GPIO |
| 引脚 A3 | PMD4 — Parallel Master Port Data 4 / GPIO |
| 引脚 A4 | PMD8 — Parallel Master Port Data 8 / GPIO |
| 引脚 A5 | SDA2 — I2C2 Data |
| 引脚 A6 | U2RX — UART2 Receive / RPA4 |
| 引脚 A7 | U2TX — UART2 Transmit / RPA8 |
| 引脚 A8 | U1TX — UART1 Transmit / RPA0 |
| 引脚 A9 | U1RX — UART1 Receive / RPA1 |
| 引脚 A10 | VDD — Supply voltage 2.5-3.6V |
| 引脚 B1 | OSC1 — Crystal oscillator input |
| 引脚 B2 | PMD1 — Parallel Master Port Data 1 / GPIO |
| 引脚 B3 | PMD5 — Parallel Master Port Data 5 / GPIO |
| 引脚 B4 | PMD9 — Parallel Master Port Data 9 / GPIO |
| 引脚 B5 | SCL2 — I2C2 Clock |
| 引脚 B6 | C1RX — CAN1 Receive |
| 引脚 B7 | C1TX — CAN1 Transmit |
| 引脚 B8 | C2RX — CAN2 Receive |
| 引脚 B9 | C2TX — CAN2 Transmit |
| 引脚 B10 | VSS — Ground |
| 引脚 C1 | OSC2 — Crystal oscillator output |
| 引脚 C2 | PMD2 — Parallel Master Port Data 2 / GPIO |
| 引脚 C3 | PMD6 — Parallel Master Port Data 6 / GPIO |
| 引脚 C4 | PMD10 — Parallel Master Port Data 10 / GPIO |
| 引脚 C5 | SDA1 — I2C1 Data |
| 引脚 C6 | SCL1 — I2C1 Clock |
| 引脚 C7 | SDI1 — SPI1 Data In / RPF5 |
| 引脚 C8 | SDO1 — SPI1 Data Out / RPF4 |
| 引脚 C9 | CS1 — SPI1 Chip Select / RPF3 |
| 引脚 C10 | SCK1 — SPI1 Clock |
| 引脚 D1 | VSS — Ground |
| 引脚 D2 | PMD3 — Parallel Master Port Data 3 / GPIO |
| 引脚 D3 | PMD7 — Parallel Master Port Data 7 / GPIO |
| 引脚 D4 | PMD11 — Parallel Master Port Data 11 / GPIO |
| 引脚 D5 | AN0 — Analog input 0 |
| 引脚 D6 | AN1 — Analog input 1 |
| 引脚 D7 | AN2 — Analog input 2 |
| 引脚 D8 | AN3 — Analog input 3 |
| 引脚 D9 | AN4 — Analog input 4 |
| 引脚 D10 | AN5 — Analog input 5 |
| 引脚 E1 | TCK — JTAG Test Clock |
| 引脚 E2 | PMRD — Parallel Master Read / GPIO |
| 引脚 E3 | PMWR — Parallel Master Write / GPIO |
| 引脚 E4 | PMA0 — Parallel Master Address 0 |
| 引脚 E5 | AN6 — Analog input 6 |
| 引脚 E6 | AN7 — Analog input 7 |
| 引脚 E7 | AN8 — Analog input 8 |
| 引脚 E8 | AN9 — Analog input 9 |
| 引脚 E9 | AN10 — Analog input 10 |
| 引脚 E10 | AN11 — Analog input 11 |
| 引脚 F1 | TMS — JTAG Test Mode Select |
| 引脚 F2 | TDI — JTAG Test Data In |
| 引脚 F3 | TDO — JTAG Test Data Out |
| 引脚 F4 | PMCS1 — Parallel Master Chip Select 1 |
| 引脚 F5 | AN12 — Analog input 12 |
| 引脚 F6 | AN13 — Analog input 13 |
| 引脚 F7 | AN14 — Analog input 14 |
| 引脚 F8 | AN15 — Analog input 15 |
| 引脚 F9 | VDD — Supply voltage 2.5-3.6V |
| 引脚 F10 | VSS — Ground |
| 引脚 G1 | TRCLK — Trace Clock |
| 引脚 G2 | TRD0 — Trace Data 0 |
| 引脚 G3 | TRD1 — Trace Data 1 |
| 引脚 G4 | TRD2 — Trace Data 2 |
| 引脚 G5 | TRD3 — Trace Data 3 |
| 引脚 G6 | CVREF — Comparator Voltage Reference |
| 引脚 G7 | C1IN- — Comparator 1 Inverting Input |
| 引脚 G8 | C1IN+ — Comparator 1 Non-Inverting Input |
| 引脚 G9 | C2IN- — Comparator 2 Inverting Input |
| 引脚 G10 | C2IN+ — Comparator 2 Non-Inverting Input |
| 引脚 H1 | D- — USB D- line |
| 引脚 H2 | D+ — USB D+ line |
| 引脚 H3 | VBUS — USB VBUS detect |
| 引脚 H4 | VUSB — USB 3.3V regulator output |
| 引脚 H5 | PGEC1 — ICSP Program Clock 1 |
| 引脚 H6 | PGED1 — ICSP Program Data 1 |
| 引脚 H7 | PGEC2 — ICSP Program Clock 2 |
| 引脚 H8 | PGED2 — ICSP Program Data 2 |
| 引脚 H9 | MCLR — Master Clear reset |
| 引脚 H10 | VDD — Supply voltage 2.5-3.6V |
| 引脚 J1 | SOSCO — Secondary oscillator output (32.768 kHz) |
| 引脚 J2 | SOSCI — Secondary oscillator input (32.768 kHz) |
| 引脚 J3 | RTCC — Real-Time Clock Calendar output |
| 引脚 J4 | OC1 — Output Compare 1 |
| 引脚 J5 | OC2 — Output Compare 2 |
| 引脚 J6 | OC3 — Output Compare 3 |
| 引脚 J7 | OC4 — Output Compare 4 |
| 引脚 J8 | OC5 — Output Compare 5 |
| 引脚 J9 | IC1 — Input Capture 1 |
| 引脚 J10 | IC2 — Input Capture 2 |
| 引脚 K1 | INT0 — External Interrupt 0 |
| 引脚 K2 | INT1 — External Interrupt 1 |
| 引脚 K3 | INT2 — External Interrupt 2 |
| 引脚 K4 | INT3 — External Interrupt 3 |
| 引脚 K5 | INT4 — External Interrupt 4 |
| 引脚 K6 | T1CK — Timer1 Clock input |
| 引脚 K7 | T2CK — Timer2 Clock input |
| 引脚 K8 | T3CK — Timer3 Clock input |
| 引脚 K9 | T4CK — Timer4 Clock input |
| 引脚 K10 | T5CK — Timer5 Clock input |
| 引脚 L1 | RB0 — GPIO RB0 |
| 引脚 L2 | RB1 — GPIO RB1 |
| 引脚 L3 | RB2 — GPIO RB2 |
| 引脚 L4 | RB3 — GPIO RB3 |
| 引脚 L5 | RB4 — GPIO RB4 |
| 引脚 L6 | RB5 — GPIO RB5 |
| 引脚 L7 | RB6 — GPIO RB6 |
| 引脚 L8 | RB7 — GPIO RB7 |
| 引脚 L9 | RB8 — GPIO RB8 |
| 引脚 L10 | RB9 — GPIO RB9 |
| 引脚 M1 | RC1 — GPIO RC1 |
| 引脚 M2 | RC2 — GPIO RC2 |
| 引脚 M3 | RC3 — GPIO RC3 |
| 引脚 M4 | RC4 — GPIO RC4 |
| 引脚 M5 | RD0 — GPIO RD0 |
| 引脚 M6 | RD1 — GPIO RD1 |
| 引脚 M7 | RD2 — GPIO RD2 |
| 引脚 M8 | RD3 — GPIO RD3 |
| 引脚 M9 | RD4 — GPIO RD4 |
| 引脚 M10 | RD5 — GPIO RD5 |
典型应用
PIC32MX340F128L-80I/BG 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： PIC32MX340F128L-80I/BG ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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) |
关键差异点
- Highest-density PIC32MX3XX/4XX with both USB OTG and dual CAN （对比 PIC32MX270F256D-I/ML)
- 53 I/O pins in compact 121-TFBGA （对比 PIC32MX274F256B-I/SO)
- Industrial temperature variant available （对比 PIC32MX330F064H-I/MR)
- Extended-temperature V-grade option exists for under-hood use （对比 PIC32MX340F128L-80V/BG)
设计说明
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.
合规信息
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.
