PIC32MX270F512L-V/PT - 32-bit MCU 512KB Flash 64KB RAM 100-TQFP
料号： PIC32MX270F512L-V/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.92 | $89.20 |
| 100 | $7.95 | $795.00 |
| 500 | $7.21 | $3,605.00 |
| 1,000 | $6.48 | $6,480.00 |
PIC32MX270F512L-V/PT 概述
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and integrated peripherals such as timers, communication controllers, and analog blocks. The PIC32MX family combines 32-bit processing performance with the rich peripheral integration Microchip's PIC architecture is known for, positioning these MCUs in the embedded control hierarchy as PIC -> PIC32 -> 32-bit MCU -> microprocessor/MCU category.
Key features of the PIC32MX270F512L-V/PT include a 2.3V to 3.6V supply range, CTMU (Charge Time Measurement Unit), RTCC (Real-Time Clock and Calendar), UART/I2C/SPI interfaces, an ADC, and 83 DMIPS performance at 50 MHz. The 'V' suffix denotes the -40C to +105C extended industrial temperature grade, and the 'PT' suffix denotes the 100-pin TQFP package. The L variant provides the largest pin count in the PIC32MX2XX family.
The MIPS32 M4K core supports hardware multiply/divide and a 5-stage pipeline, delivering deterministic interrupt response and 1.56 DMIPS/MHz efficiency. With 512KB Flash and 64KB RAM, the device targets mid-complexity applications including Bluetooth audio codecs, USB peripherals, graphical user interfaces, and multi-protocol bridging. The integrated USB 2.0 Full-Speed OTG controller and four I2S interfaces specifically target audio streaming use cases such as the PIC32 Bluetooth Audio Development Kit reference design.
Typical applications include Bluetooth audio speakers and headsets, USB audio class devices, industrial control panels with PMP-driven parallel LCDs, multi-serial-protocol sensor hubs, and home automation gateways. The combination of USB, I2S, PMP, and CTMU peripherals makes this MCU well-suited to consumer audio and connected-embedded designs.
When designing with this part, plan for proper decoupling (0.1uF + 1uF near each VDD pin pair), use ICSP pairs (PGECx/PGEDx) for programming/debugging, and note that all VSS/VDD pins must be connected. The PPS feature requires explicit configuration of remappable peripherals to physical pins via SFR writes.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes that complement the manufacturer datasheet.
直接替换替代料： PIC32MX270F512L-V/PT ——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： PIC32MX270F512L-V/PT （相同外形与封装尺寸） ——差异在于 ADC, Package, Core Architecture, USB, DMA Channels.
快速对比工具——选择替代料号进行并排对比：
PIC32MX270F512LT-V/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX270F512L-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX270F512L-50I/PT
✅ 直接替换✓ 有现货
$4.65 / 个
查看数据手册 →PIC32MX170F512L-V/PT
✅ 直接替换✓ 有现货
$5.4 / 个
查看数据手册 →PIC32MX170F512L-I/PT
✅ 直接替换✓ 有现货
$4.2 / 个
查看数据手册 →PIC32MX270F512L-V/PT 最大额定值与电气特性
| Core | MIPS32 M4K |
| Bit Width | 32-bit |
| Maximum CPU Speed | 50 MHz |
| Performance | 83 DMIPS |
| Program Memory (Flash) | 512 KB (512K x 8) |
| RAM | 64 KB |
| Operating Voltage (Vcc/VDD) | 2.3 V to 3.6 V |
| 工作温度 | -40C to +105C (V grade) |
| 封装 | 100-pin TQFP (12x12 mm) |
| USB | USB 2.0 Full-Speed OTG controller |
| I2S/SPI Modules | 4 |
| Peripheral Pin Select (PPS) | Yes |
| Parallel Master Port (PMP) | Yes, dual read/write buffers |
| CTMU | Yes (Charge Time Measurement Unit) |
| RTCC | Yes (Real-Time Clock and Calendar) |
| 安装类型 | Surface Mount |
| RoHS | ROHS3 Compliant |
PIC32MX270F512L-V/PT 100-pin tqfp (12x12 mm) 引脚配置指南
PIC32MX270F512L-V/PT（100-pin tqfp (12x12 mm) 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： PIC32MX270F512L-V/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PIC32MX270F512L-V/PT 适用于 6 应用s: Bluetooth Audio Speakers and Headsets, USB Audio Class Peripherals, Industrial Control Panels with Graphic LCD, Multi-Protocol Sensor Hubs and Bridges, Home Automation Gateways, Consumer Audio Mixing Consoles.
Bluetooth Audio Speakers and Headsets
The PIC32MX270F512L-V/PT is purpose-built for Bluetooth audio applications, as evidenced by its role in Microchip's PIC32 Bluetooth Audio Development Kit reference design. The four on-chip I2S interfaces support multi-channel audio codecs and DSP front-ends, while the USB 2.0 Full-Speed OTG controller handles USB audio class streaming when the device operates as a wired audio source. The 512KB Flash accommodates Bluetooth stack + audio processing firmware, and 64KB RAM provides headroom for audio buffers. The CTMU peripheral enables capacitive touch controls for volume/power buttons common in portable speakers. Compared to smaller PIC32 variants, this 100-pin TQFP exposes all four I2S modules and the full PMP simultaneously, removing the need for an external audio bridge chip.
推荐
USB Audio Class Peripherals
The integrated USB 2.0 Full-Speed OTG controller makes the PIC32MX270F512L-V/PT well-suited to USB audio class (UAC) peripherals such as USB speakers, USB DACs, and USB headsets. The device can enumerate as a USB audio device with up to 32-bit / 96 kHz sample rates when paired with an external audio codec over I2S. The Peripheral Pin Select (PPS) feature allows the USB D+/D- pins and I2S signals to be remapped to convenient PCB locations without package-variant changes. The -40C to +105C industrial temperature grade (V suffix) ensures reliable operation in enclosed audio equipment. Compared to MCUs lacking USB OTG, this part eliminates the need for an external USB interface chip, reducing BOM cost by $0.50-$1.00.
推荐
Industrial Control Panels with Graphic LCD
The PIC32MX270F512L-V/PT drives color TFT LCDs via its Parallel Master Port (PMP) with dual read/write buffers, enabling flicker-free graphics updates at typical QVGA/WQVGA resolutions. The 83 DMIPS performance at 50 MHz is sufficient for on-screen GUIs, button debouncing, and real-time control loops without external memory. UART, I2C, and SPI peripherals interface to motor drivers, sensors, and industrial buses (RS-485, Modbus). The CTMU supports touch-button sensing on control-panel overlays. The -40C to +105C V-grade rating is essential for industrial cabinets where ambient temperatures can exceed 70C. This part replaces older 16-bit PIC24 designs where 32-bit performance and larger Flash are needed for modern HMI firmware.
推荐
Multi-Protocol Sensor Hubs and Bridges
The four I2S/SPI modules combined with multiple UART/I2C interfaces allow the PIC32MX270F512L-V/PT to aggregate data from heterogeneous sensor clusters. Each I2S/SPI port can be assigned to a different sensor bus at up to 25 MHz SPI clock, while UARTs handle RS-232/RS-485 links to industrial sensors. The 512KB Flash supports protocol stacks (Modbus, CAN, custom) simultaneously, and 64KB RAM buffers time-series sensor data before forwarding. The CTMU can be used for time-of-flight or capacitive liquid-level measurements in process-control settings. The PPS feature lets designers route any peripheral to any pin, simplifying PCB routing when sensors are physically distributed across the enclosure.
推荐
Home Automation Gateways
The PIC32MX270F512L-V/PT serves as a low-cost home automation gateway MCU bridging Wi-Fi/Bluetooth radios to sub-GHz or wired sensor networks. The USB OTG interface connects to a Wi-Fi dongle or external radio module, while UART/SPI ports interface to sub-GHz transceivers for proprietary home-automation protocols. The 50 MHz core runs encryption (AES-128) and protocol translation firmware in real time. The -40C to +105C temperature rating covers basement-to-attic installation scenarios. The PMP can drive a small status LCD showing system health. Compared to Linux-based gateways, this MCU-based design draws less than 1W typical, suiting always-on battery-backed installations.
推荐
Consumer Audio Mixing Consoles
Mixing consoles and DJ controllers benefit from the PIC32MX270F512L-V/PT's four I2S interfaces for multi-channel digital audio routing. Each I2S port can connect to a separate ADC/DAC pair (microphone pre-amps, line outputs, headphone amps), enabling digital mix-bus architectures. The 83 DMIPS MIPS M4K core runs audio mixing/effects algorithms in real time. CTMU enables touch-sensitive faders and knobs via capacitive sensing, replacing mechanical encoders. The USB OTG port presents the mixer as a USB audio class device to a host PC for DAW integration. The 100-pin TQFP provides enough I/O for button matrices, LED meters, and rotary encoders without external I/O expanders, simplifying PCB layout.
推荐
推荐产品汇总
工程参考数据： PIC32MX270F512L-V/PT ——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 | PIC32MX270F512LT-V/PT | PIC32MX270F512L-I/PT | PIC32MX270F512L-50I/PT | PIC32MX170F512L-V/PT | PIC32MX170F512L-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (12x12 mm) | 100-pin TQFP (12x12 mm) - same | 100-pin TQFP (12x12 mm) - same | 100-pin TQFP (12x12 mm) - same | 100-pin TQFP (12x12 mm) - same | 100-pin TQFP (12x12 mm) - same |
| Core / Bit Width | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit |
| Maximum CPU Speed | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) |
| Flash / RAM | 512 KB / 64 KB | 512 KB / 64 KB | 512 KB / 64 KB | 512 KB / 64 KB | 512 KB / 64 KB | 512 KB / 64 KB |
| USB OTG Controller | Yes (USB 2.0 Full-Speed OTG) | Yes | Yes | Yes | No (PIC32MX170 lacks USB) | No (PIC32MX170 lacks USB) |
| I2S / SPI Modules | 4 | 4 | 4 | 4 | 3 | 3 |
| Operating Temperature | -40C to +105C (V grade) | -40C to +105C | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +105C | -40C to +85C (I grade) |
| Operating Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V |
| RoHS Compliance | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
关键差异点
- Integrated USB 2.0 Full-Speed OTG controller on-chip （对比 PIC32MX170F512L-V/PT)
- Four I2S/SPI modules vs three on the MX170 family （对比 PIC32MX170F512L-V/PT)
- Extended -40C to +105C V temperature grade for harsh environments （对比 PIC32MX270F512L-I/PT)
设计说明
Place a 0.1 uF decoupling capacitor as close as possible to every VDD/VSS pair on the PIC32MX270F512L-V/PT, with one bulk 1 uF to 10 uF capacitor near the package. The 100-pin TQFP has multiple VDD pins (VDD, AVDD) that all require decoupling; insufficient decoupling causes core glitches and USB enumeration failures. Estimated: at 50 MHz core with all peripherals active, average current draw is ~30 mA, peaking at 70 mA during USB transmissions.
All VSS pins must be connected to ground for proper operation - floating any VSS pin on the 100-pin TQFP causes undefined behavior and possible latch-up. For ICSP programming/debugging, you must use a PGECx/PGEDx pin pair together (e.g., PGEC2 + PGED2); mixing pairs will fail programming. The Peripheral Pin Select (PPS) feature must be explicitly configured via SFR writes to map remappable peripherals to physical pins - peripherals do not work on default pins without PPS configuration.
For USB applications, route the D+ and D- traces as a 90-ohm differential pair with matching length, keeping them short and away from switching noise sources. The USB D+/D- pins are fixed (not PPS-remappable) on this device, so plan their PCB location early. Add a 10k pull-up resistor on D+ for full-speed device mode, or on D- for low-speed. Place the 12 MHz crystal within 5 mm of the OSC1/OSC2 pins with grounded guard traces for EMI immunity.
合规信息
ROHS3 compliant per distributor listing (mcu-supplier.com). Not AEC-Q100 qualified - the V temperature grade (-40C to +105C) is industrial, not automotive. Reach and halogen-free status not specified in verified data; marked unknown.
