PIC32MX350F128LT-V/TL - 32-bit 80MHz MCU 128KB Flash | Microchip
料号： PIC32MX350F128LT-V/TL ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.95 | $5.95 |
| 10 | $5.34 | $53.40 |
| 100 | $4.76 | $476.00 |
| 500 | $4.21 | $2,105.00 |
| 1,000 | $3.74 | $3,740.00 |
PIC32MX350F128LT-V/TL 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals on one die. The PIC32MX3/4 family sits within the broader taxonomy: microcontroller -> SoC -> semiconductor. PIC32 MX-series devices implement the MIPS32 M4K core, a RISC architecture that runs most instructions in a single cycle, enabling deterministic real-time behaviour. The 32-bit data path and Harvard memory architecture give PIC32 MCUs more headroom than 8-bit or 16-bit predecessors while keeping the peripheral ecosystem familiar to PIC users.
Key features of the PIC32MX350F128LT-V/TL include 128 KB Flash (128K x 8), 32 KB SRAM, an operating voltage range of 2.3 V to 3.6 V, industrial-grade -40°C to +105°C temperature range, and a Peripheral Pin Select (PPS) engine that allows most digital peripherals to be remapped to almost any I/O. The device also includes a Parallel Master Port (PMP), USB 2.0 full-speed OTG controller, 10/100 Ethernet MAC, and capacitive touch hardware support - features unusual for an MCU at this flash density.
Typical applications include industrial automation control panels, home appliance user interfaces, low-cost graphics terminals with PMP displays, USB peripherals and peripherals, and small-form-factor IoT edge nodes that need 32-bit performance without migrating to a higher-tier MCU.
A practical design tip: leverage Peripheral Pin Select (PPS) to route peripherals after pinout is locked, but remember that PPS remapping is per-function, not per-pin, so designers must still assign physical pads carefully to keep analog and digital paths separate on the 124-pin VTLA package.
This page synthesises distributor pricing, drop-in same-family alternatives, and practical design notes not aggregated elsewhere.
直接替换替代料： PIC32MX350F128LT-V/TL ——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： PIC32MX350F128LT-V/TL （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Core Architecture, SPI / I2S, ADC.
快速对比工具——选择替代料号进行并排对比：
PIC32MX350F128LT-V/PF
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.5 / 个
查看数据手册 →PIC32MX350F128LT-V/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.31 / 个
查看数据手册 →PIC32MX350F128LT-I/TL
✅ 直接替换✓ 有现货
$4.41 / 个
查看数据手册 →PIC32MX350F128LT-I/PF
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.32 / 个
查看数据手册 →PIC32MX350F128HT-V/MR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.18 / 个
查看数据手册 →PIC32MX350F128LT-V/TL 最大额定值与电气特性
| Core Architecture | MIPS32 M4K |
| 数据总线宽度 | 32-bit |
| Maximum CPU Speed | 80 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| SRAM | 32 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| 工作温度 | -40 °C to +105 °C |
| 封装 | 124-VTLA (9x9 mm) |
| Package Type | Surface Mount, Dual Row, Exposed Pad |
| 引脚数量 | 124 |
| ADC | 10-bit, up to 28 channels |
| Analog Comparators | 2 |
| I2C | 2 |
| SPI / I2S | 2 |
| UART / USART | Yes |
| Connectivity | I2C, IrDA, LINbus, PMP, SPI, UART/USART |
| Timers | 5 x 16-bit |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 (1 year) |
| RoHS 状态 | Compliant |
PIC32MX350F128LT-V/TL surface mount, dual row, exposed pad 引脚配置指南
PIC32MX350F128LT-V/TL（surface mount, dual row, exposed pad 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： PIC32MX350F128LT-V/TL.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PIC32MX350F128LT-V/TL 适用于 7 应用s: Industrial Control Panels, USB Peripherals, Home Appliance UI, Low-Cost Ethernet Nodes, Graphics Terminals with PMP, IoT Edge Sensor Hubs, Automotive Body Controllers.
Industrial Control Panels
The PIC32MX350F128LT-V/TL fits industrial HMI panels because its 80 MHz MIPS32 M4K core runs graphical menus faster than 8-bit predecessors, and 128 KB Flash holds full keypad/display state machines. The 124-pin VTLA exposes enough GPIO for matrix keypads, character LCDs, and LED bar graphs. Industrial-grade -40C to +105C operation tolerates cabinet heat. Built-in UART, SPI, and I2C simplify links to motor drives and sensors.
推荐
USB Peripherals
The PIC32MX350F128LT-V/TL's integrated USB 2.0 full-speed OTG controller makes it a natural fit for USB peripherals like HID controllers, USB-to-UART bridges, and low-cost data loggers. The 128 KB Flash holds USB stacks and application code; 32 KB SRAM accommodates HID ring buffers. The 124-pin VTLA footprint exposes dedicated USB D+/D- pads. No external PHY needed, reducing BOM and PCB area versus discrete USB chips.
推荐
Home Appliance UI
The PIC32MX350F128LT-V/TL suits home appliance user interfaces - washing machine panels, induction cooktops, and smart thermostats - where its 28-channel ADC reads multiple knob positions and NTC temperature sensors in parallel. The 128 KB Flash holds multilingual UI strings and capacitive touch libraries. The -40C to +105C range covers kitchen and laundry enclosures. PMP peripheral drives character LCDs without an external display controller.
推荐
Low-Cost Ethernet Nodes
The PIC32MX350F128LT-V/TL integrates a 10/100 Ethernet MAC that, paired with a low-cost PHY like the LAN8720, gives designers a sub-$10 networked MCU for sensors, smart plugs, and small appliances. The 32 KB SRAM buffers lightweight TCP/IP stacks. The 124-pin VTLA exposes RMII pads via PPS. Internal MII/RMII/mux eliminates external logic, simplifying PCB layout versus MCUs without an integrated MAC.
推荐
Graphics Terminals with PMP
The PIC32MX350F128LT-V/TL's Parallel Master Port (PMP) drives small parallel TFTs and OLEDs without a separate display controller IC. The 32 KB SRAM hosts double-buffered framebuffers for QVGA panels. The 80 MHz MIPS32 M4K core delivers 80 DMIPS - enough to render menus, gauges, and simple animations. Designers benefit from a 40x10 device footprint with USB for touchscreens and Ethernet for remote management.
推荐
IoT Edge Sensor Hubs
The PIC32MX350F128LT-V/TL aggregates multiple sensors via I2C, SPI, and UART for IoT edge hubs - small-form-factor devices bridging peripherals to local processing. The 28-channel ADC scans analog sensors while digital buses connect environmental, motion, and gas sensors. Built-in USB and Ethernet provide either local console or networked telemetry. -40 °C to +105 °C supports outdoor enclosures and factory floors.
推荐
Automotive Body Controllers
The PIC32MX350F128LT-V/TL suits non-safety automotive body controllers - door modules, seat controllers, lighting nodes - where its 80 MHz MIPS32 M4K core runs CAN-capable stacks and the extended -40C to +105C range handles cabin temperatures. LINbus connectivity directly interfaces body electronics without external transceivers. 128 KB Flash stores calibration and variant data; 32 KB SRAM buffers diagnostic logs.
推荐
推荐产品汇总
工程参考数据： PIC32MX350F128LT-V/TL ——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 | PIC32MX350F128LT-I/TL | PIC32MX350F128LT-V/PF | PIC32MX350F128LT-V/PT | PIC32MX350F128HT-V/MR |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 124-VTLA (9x9 mm) | 124-VTLA (9x9 mm) - same | 100-TQFP - different | 100-TQFP - different | 64-QFN - different |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| Maximum CPU Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Operating Temperature | -40C to +105C (extended) | -40C to +85C (industrial) | -40C to +105C (extended) | -40C to +105C (extended) | -40C to +105C (extended) |
| Core Architecture | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K |
| USB 2.0 FS | Yes (OTG) | Yes (OTG) | Yes (OTG) | Yes (OTG) | Yes (OTG) |
| Ethernet MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC |
关键差异点
- Highest pin count in PIC32MX350 family （对比 PIC32MX350F128HT-V/MR)
- Extended temperature grade -40C to +105C （对比 PIC32MX350F128LT-I/TL)
- Integrated USB 2.0 OTG and Ethernet MAC in mid-density Flash tier （对比 PIC32MX330F064L-I/TL)
设计说明
The PIC32MX350F128LT-V/TL's VTLA-9x9 package dissipates up to ~500 mW at 80 MHz with full peripheral activity. Estimated: at 3.3 V core, internal current is roughly 60 mA (3.3 V x 60 mA = 200 mW), plus I/O loading. The exposed thermal pad MUST be soldered to a continuous ground copper pour of at least 1 sq cm; failure to do so can raise junction temperature by 15-20 C above datasheet curves. For high-temperature industrial environments, use a 4-layer PCB with a dedicated ground plane for thermal relief.
Route the 50 MHz Ethernet RMII traces as a matched-length group with 50 ohm impedance to the external PHY. Keep USB D+/D- as a 90-ohm differential pair. Place the 12 MHz primary crystal within 5 mm of the OSC1/OSC2 pads, with a guarded ground ring around the crystal traces. Decouple VDD with 100 nF ceramic caps adjacent to every VDD pin and a single bulk 4.7 uF tantalum within 10 mm.
Avoid the common mistake of leaving unused I/O as inputs - floating inputs on PIC32MX can draw several mA in aggregate and cause spurious interrupts. Configure unused I/O as outputs driving low. Do not exceed 3.6 V on any I/O; the PIC32MX350 is NOT 5V tolerant. When using PPS, remap functions in the device header rather than directly writing registers - register macros handle unlock sequences that prevent lockout.
Use a low-noise LDO such as MCP1700B or MIC29150 for the 3.3 V rail - the PIC32MX350's ADC accuracy degrades if the supply ripple exceeds 30 mV pk-pk. Keep the LDO within 50 mm of the VDD pins and use a star-ground layout to isolate analog and digital returns. Add a 10 uF bulk cap on VDDIO and AVDD separately to reduce ADC reference noise.
合规信息
RoHS and REACH compliant per Microchip product page. Lead-free and halogen-free assembly compatible. Not AEC-Q100 qualified - this is an industrial/extended-grade part. For automotive safety-critical applications, choose a PIC32MX with AEC-Q100 qualification such as the automotive-grade PIC32MX variants.