PIC32MX270F512L-50I/PT - 50MHz 32-bit MCU 512KB Flash | Microchip
料号： PIC32MX270F512L-50I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.95 | $6.95 |
| 10 | $6.32 | $63.20 |
| 100 | $5.62 | $562.00 |
| 500 | $5.18 | $2,590.00 |
| 1,000 | $4.65 | $4,650.00 |
PIC32MX270F512L-50I/PT 概述
A 32-bit microcontroller (MCU) is a microprocessor optimized for embedded control, integrating CPU core, memory, and peripherals on a single die. Within the broader taxonomy, the PIC32MX family sits in the MCU -> 32-bit MCU -> MIPS-based MCU -> PIC32MX1/2/5 sub-family hierarchy, competing with ARM Cortex-M3/M4 parts from STMicroelectronics and NXP. Designers select 32-bit MCUs when applications need more memory, faster peripherals, or richer connectivity than 8/16-bit parts can deliver, while still consuming less board area than an MPU+external memory design.
Key features of the PIC32MX270F512L-50I/PT include a 10-bit 1 Msps ADC with up to 28 input channels, a Parallel Master Port (PMP) with dual read/write buffers for graphics interfaces, and a 5-bit CCP/IC/OC timer/capture/PWM array. The device provides a CAN 2.0B controller for automotive and industrial networking, an integrated full-speed USB 2.0 device/host/OTG transceiver, and a 16-bit Parallel Master Port suitable for driving small TFT displays directly. Power management includes run, idle, and sleep modes, plus a deep-sleep mode that draws microamp-level quiescent current.
Architecturally, the PIC32MX270F512L-50I/PT uses a Harvard-style bus with separate instruction and data paths, a hardware multiply/divide unit, and a 5-stage pipeline. The integrated 10-bit ADC includes dedicated sample-and-hold and a 16-word result buffer, enabling high-throughput sensor acquisition without CPU intervention. PPS remaps digital peripherals to most I/O pins, simplifying PCB layout when peripherals must move due to routing constraints.
Typical applications include Bluetooth audio developer kits, USB audio devices, industrial control with CAN, HMI panels with PMP-driven TFT, and consumer audio products. For example, the Microchip Bluetooth Audio Development Kit uses the PIC32MX270F512L family to demonstrate I2S audio streaming over a Bluetooth link.
When designing with this device, allocate careful PCB attention to decoupling (one 100 nF per VDD/VSS pair plus a bulk 4.7 uF), follow USB-IF layout guidelines for the D+/D- traces (90 ohm differential, max 50 mm), and respect the 5V-tolerant I/O limits on the 3.3V-rail digital pins.
This page synthesizes distributor pricing, same-family and cross-brand drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet to help engineers select and lay out the PIC32MX270F512L-50I/PT with confidence.
直接替换替代料： PIC32MX270F512L-50I/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-50I/PT （相同外形与封装尺寸） ——差异在于 Package, ADC, Parallel Master Port (PMP), Maximum CPU Speed, USB.
快速对比工具——选择替代料号进行并排对比：
PIC32MX270F512LT-50I/PT
✅ 直接替换✓ 有现货
$4.85 / 个
查看数据手册 →PIC32MX250F256L-50I/PT
✅ 直接替换✓ 有现货
$5.75 / 个
查看数据手册 →PIC32MX170F512L-50I/PF
✅ 直接替换✓ 有现货
$5.55 / 个
查看数据手册 →PIC32MX270F512HT-50I/PT
✅ 直接替换✓ 有现货
$4.2 / 个
查看数据手册 →PIC32MX230F256D-50I/PT
✅ 直接替换✓ 有现货
$4.15 / 个
查看数据手册 →PIC32MX270F256DT-50I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX270F512L-50I/PT 最大额定值与电气特性
| Core Architecture | MIPS32 M4K |
| Bit Width | 32-bit |
| Maximum CPU Clock | 50 MHz |
| DMIPS Performance | 83 DMIPS |
| Program Flash Memory | 512 KB |
| SRAM | 64 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| 工作温度范围 | -40 C to +85 C (Industrial) |
| 封装 | 100-pin TQFP (PT) 12x12 mm |
| 安装类型 | Surface Mount |
| ADC | 10-bit, up to 1 Msps, 28 channels |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| CAN | CAN 2.0B |
| I2S | 2 modules |
| SPI | 4 modules |
| I2C | 2 modules |
| PMP (Parallel Master Port) | Yes, 8/16-bit, dual buffers |
| PPS (Peripheral Pin Select) | Yes |
| RoHS 状态 | Compliant |
PIC32MX270F512L-50I/PT 引脚配置
| 引脚 1 | RPB5/PMD5/RG0 — PPS remappable I/O / PMP data |
| 引脚 2 | RPB6/PMD6/RG1 — PPS remappable I/O / PMP data |
| 引脚 3 | RPB7/PMD7/RG2 — PPS remappable I/O / PMP data |
| 引脚 4 | VSS — Ground |
| 引脚 5 | VDD — Digital supply (2.3-3.6V) |
| 引脚 6 | RPB8/SCL1 — PPS I/O / I2C1 clock |
| 引脚 7 | RPB9/SDA1 — PPS I/O / I2C1 data |
| 引脚 8 | RPC6/PMA1 — PPS I/O / PMP address |
| 引脚 9 | RPC7/PMA0 — PPS I/O / PMP address |
| 引脚 10 | RPC8/PMA5 — PPS I/O / PMP address |
| 引脚 11 | RPC9/PMA6 — PPS I/O / PMP address |
| 引脚 12 | VSS — Ground |
| 引脚 13 | VDD — Digital supply (2.3-3.6V) |
| 引脚 14 | VREF-/CVREF- — ADC negative reference |
| 引脚 15 | VREF+/CVREF+ — ADC positive reference |
| 引脚 16 | AVSS — Analog ground |
| 引脚 17 | AVDD — Analog supply (2.3-3.6V) |
| 引脚 18 | AN0/C2IN-/C1IN-/CN2 — ADC input / comparator input |
| 引脚 19 | AN1/C2IN+/C1IN+ — ADC input / comparator input |
| 引脚 20 | AN2/C1IN-/C2IN- — ADC input / comparator input |
| 引脚 21 | AN3/C1IN+/C2IN+ — ADC input / comparator input |
| 引脚 22 | AN4/C1OUT — ADC input / comparator output |
| 引脚 23 | AN5/C2OUT — ADC input / comparator output |
| 引脚 24 | AN6 — ADC input |
| 引脚 25 | AN7 — ADC input |
| 引脚 26 | AN8 — ADC input |
| 引脚 27 | AN9 — ADC input |
| 引脚 28 | AN10 — ADC input |
| 引脚 29 | AN11 — ADC input |
| 引脚 30 | VSS — Ground |
| 引脚 31 | VDD — Digital supply (2.3-3.6V) |
| 引脚 32 | AN12 — ADC input |
| 引脚 33 | AN13 — ADC input |
| 引脚 34 | AN14 — ADC input |
| 引脚 35 | AN15 — ADC input |
| 引脚 36 | AN16 — ADC input |
| 引脚 37 | AN17 — ADC input |
| 引脚 38 | AN18 — ADC input |
| 引脚 39 | AN19 — ADC input |
| 引脚 40 | AN20 — ADC input |
| 引脚 41 | AN21 — ADC input |
| 引脚 42 | AN22 — ADC input |
| 引脚 43 | AN23 — ADC input |
| 引脚 44 | AN24 — ADC input |
| 引脚 45 | AN25 — ADC input |
| 引脚 46 | AN26 — ADC input |
| 引脚 47 | AN27 — ADC input |
| 引脚 48 | VSS — Ground |
| 引脚 49 | VDD — Digital supply (2.3-3.6V) |
| 引脚 50 | RPB10/SDA2 — PPS I/O / I2C2 data |
| 引脚 51 | RPB11/SCL2 — PPS I/O / I2C2 clock |
| 引脚 52 | RPB12 — PPS remappable I/O |
| 引脚 53 | RPB13 — PPS remappable I/O |
| 引脚 54 | RPB14 — PPS remappable I/O |
| 引脚 55 | RPB15 — PPS remappable I/O |
| 引脚 56 | VSS — Ground |
| 引脚 57 | VDD — Digital supply (2.3-3.6V) |
| 引脚 58 | SOSCI/RPC13 — Secondary oscillator input |
| 引脚 59 | SOSCO/RPC14 — Secondary oscillator output |
| 引脚 60 | OSC1/CLKI/RC15 — Primary oscillator input |
| 引脚 61 | OSC2/CLKO/RC14 — Primary oscillator output |
| 引脚 62 | VDD — Digital supply (2.3-3.6V) |
| 引脚 63 | VSS — Ground |
| 引脚 64 | RPD0/PMD0/INT0 — PPS I/O / PMP data / ext interrupt |
| 引脚 65 | RPD1/PMD1 — PPS I/O / PMP data |
| 引脚 66 | RPD2/PMD2 — PPS I/O / PMP data |
| 引脚 67 | RPD3/PMD3 — PPS I/O / PMP data |
| 引脚 68 | RPD4/PMD4 — PPS I/O / PMP data |
| 引脚 69 | RPD5/PMRD — PPS I/O / PMP read strobe |
| 引脚 70 | RPD6/PMWR — PPS I/O / PMP write strobe |
| 引脚 71 | RPD7/PMA17 — PPS I/O / PMP address |
| 引脚 72 | RPD8/PMA18 — PPS I/O / PMP address |
| 引脚 73 | RPD9/PMA19 — PPS I/O / PMP address |
| 引脚 74 | RPD10/PMA20 — PPS I/O / PMP address |
| 引脚 75 | RPD11/PMA21 — PPS I/O / PMP address |
| 引脚 76 | RPD12/PMCS1 — PPS I/O / PMP chip select |
| 引脚 77 | RPD13/PMCS2 — PPS I/O / PMP chip select |
| 引脚 78 | VSS — Ground |
| 引脚 79 | VDD — Digital supply (2.3-3.6V) |
| 引脚 80 | RPE0/PMALL/PMA22 — PPS I/O / PMP address latch |
| 引脚 81 | RPE1/PMALH/PMA23 — PPS I/O / PMP address latch |
| 引脚 82 | RPE2/PMD8 — PPS I/O / PMP data |
| 引脚 83 | RPE3/PMD9 — PPS I/O / PMP data |
| 引脚 84 | RPE4/PMD10 — PPS I/O / PMP data |
| 引脚 85 | RPE5/PMD11 — PPS I/O / PMP data |
| 引脚 86 | RPE6/PMD12 — PPS I/O / PMP data |
| 引脚 87 | RPE7/PMD13 — PPS I/O / PMP data |
| 引脚 88 | RPE8/PMD14 — PPS I/O / PMP data |
| 引脚 89 | RPE9/PMD15 — PPS I/O / PMP data |
| 引脚 90 | VSS — Ground |
| 引脚 91 | VDD — Digital supply (2.3-3.6V) |
| 引脚 92 | DBG0/RPF0 — ICD debug / PPS I/O |
| 引脚 93 | DBG1/RPF1 — ICD debug / PPS I/O |
| 引脚 94 | DBG2/RPF2 — ICD debug / PPS I/O |
| 引脚 95 | DBG3/RPF3 — ICD debug / PPS I/O |
| 引脚 96 | TRCLK/RPF4 — Trace clock / PPS I/O |
| 引脚 97 | TRD0/RPF5 — Trace data / PPS I/O |
| 引脚 98 | TRD1/RPF6 — Trace data / PPS I/O |
| 引脚 99 | TRD2/RPF7 — Trace data / PPS I/O |
| 引脚 100 | TRD3/RPF8 — Trace data / PPS I/O |
典型应用
PIC32MX270F512L-50I/PT 适用于 6 应用s: USB Audio Streaming Devices, Industrial CAN Bus Control Nodes, HMI Panels with TFT Display, Bluetooth Audio Development Platforms, Consumer Audio Products, IoT Sensor Hubs with USB Connectivity.
USB Audio Streaming Devices
The PIC32MX270F512L-50I/PT is purpose-built for USB audio class applications thanks to its integrated USB 2.0 Full-Speed controller (12 Mbps) and dual I2S interfaces for digital audio codecs. Its 50 MHz MIPS32 M4K core provides enough throughput for 16-bit 48 kHz stereo USB Audio Class 1.0 streaming, while 64 KB SRAM buffers multiple USB packets without dropouts. With 512 KB Flash, designers can embed full USB audio descriptors, sample-rate conversion, and small DSP effects in a single chip without external memory.
推荐
Industrial CAN Bus Control Nodes
The PIC32MX270F512L-50I/PT integrates a hardware CAN 2.0B controller compliant with ISO 11898-1, eliminating the need for an external CAN transceiver-side controller. Combined with the 50 MHz MIPS32 M4K core and 64 KB SRAM, the device can serve as a slave node on industrial CANopen or DeviceNet networks, handling sensor sampling with its 1 Msps 10-bit ADC and forwarding telemetry at up to 1 Mbps. The industrial -40 C to +85 C operating range supports factory-floor deployments without thermal management.
推荐
HMI Panels with TFT Display
The PIC32MX270F512L-50I/PT includes a Parallel Master Port (PMP) with 8/16-bit data width and dual read/write buffers, allowing direct connection to small TFT LCDs without an external graphics controller. At 50 MHz the M4K core can refresh QVGA (320x240) panels at 30 fps while running a lightweight touch UI from 512 KB Flash. Peripheral Pin Select lets designers route the PMP data lines to any convenient I/O bank, simplifying PCB layout when display placement forces non-standard pin assignments.
推荐
Bluetooth Audio Development Platforms
The Microchip PIC32 Bluetooth Audio Development Kit uses the PIC32MX270F512L family to demonstrate I2S audio streaming over a Bluetooth link. With dual I2S ports, the device can simultaneously drive an audio DAC and receive from a Bluetooth audio module, while the 512 KB Flash holds the BT stack shim and audio routing firmware. The USB Full-Speed port enables streaming from a PC during development. Designers can reuse this proven platform as a starting point for wireless speakers and headphones.
推荐
Consumer Audio Products
Consumer audio products benefit from the PIC32MX270F512L-50I/PT's low BOM cost and rich peripheral set: dual I2S, USB, and a 10-bit ADC for keypad/rotary input. At 50 MHz the core decodes compressed audio streams or runs simple synthesis without external DSP. The 64 KB SRAM buffers audio samples to mask USB jitter, and the 5V-tolerant I/O simplifies interface to legacy 5V front-panel buttons. Industrial-grade temperature tolerance extends product life in enclosed chassis.
推荐
IoT Sensor Hubs with USB Connectivity
The PIC32MX270F512L-50I/PT acts as a USB-attached IoT sensor hub, aggregating data from multiple I2C sensors via its two I2C ports and four SPI ports, then streaming aggregated data over USB to a host PC. The 28-channel 1 Msps ADC handles analog sensors simultaneously. With 512 KB Flash the device stores USB CDC class firmware, a lightweight command parser, and sensor calibration tables on-chip, while PPS allows flexible pin assignments to keep PCB routing short.
推荐
推荐产品汇总
工程参考数据： PIC32MX270F512L-50I/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-50I/PT | PIC32MX250F256L-50I/PT | PIC32MX170F512L-50I/PF | PIC32MX230F256D-50I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (PT) 12x12 mm | TQFP-100 (PT) 12x12 mm - same | TQFP-100 (PT) 12x12 mm - same | TQFP-100 (PT) 12x12 mm - same | TQFP-100 (PT) 12x12 mm - same |
| Flash Memory | 512 KB | 512 KB | 256 KB | 512 KB | 256 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| Max CPU Clock | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed |
| CAN 2.0B | Yes | Yes | No | No | No |
| PMP (Parallel Master Port) | Yes (8/16-bit) | Yes (8/16-bit) | Yes (8/16-bit) | No | Yes (8/16-bit) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
关键差异点
- Higher Flash with CAN 2.0B in same 100-pin TQFP （对比 PIC32MX170F512L-50I/PF)
- Lower-cost same-Flash variant without CAN （对比 PIC32MX250F256L-50I/PT)
- Identical silicon with tape-and-reel packaging （对比 PIC32MX270F512LT-50I/PT)
设计说明
The PIC32MX270F512L-50I/PT operates from a single 2.3 V to 3.6 V supply. According to the datasheet decoupling guidance, place a 100 nF ceramic capacitor on each VDD/VSS pair (10 pairs in the 100-pin TQFP) plus a single 4.7 uF bulk capacitor near the IC. For USB applications, add a 100 uF bulk capacitor on VBUS to meet USB-IF inrush current requirements. Estimated: the device draws up to 75 mA at 50 MHz with all peripherals active; verify with the IPD (Idle/Run/Debug) current spec in the datasheet.
For USB Full-Speed signals, route D+ and D- as a 90 ohm differential pair with maximum 50 mm trace length, no stubs, and no series components. The VBUS pin requires a 10 uF capacitor to ground within 5 mm. According to the PIC32MX1XX/2XX/5XX 100-pin datasheet, the analog supply AVDD and AVSS must be tied to the digital rails through a ferrite bead if using the ADC at full 1 Msps rate. Crystal traces for the primary oscillator should be kept short (<10 mm) and guarded by a ground ring.
Do not exceed the 5V-tolerant I/O specification when interfacing 5V logic to the 3.3V digital pins - the limit is 5.5V on the digital rails but only when VDD is present. Avoid connecting the JTAG TCK/TMS pins to LEDs or other loads; these pins are required for boundary-scan and ICSP debug. Estimated: at 50 MHz with full peripherals, derate clock to 40 MHz if ambient exceeds 70C to maintain timing margins on USB Full-Speed. Always use the latest MPLAB X IDE Harmony framework configuration rather than manual register writes for the USB stack.
合规信息
RoHS-compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC32MX automotive variants for vehicle applications. /PT package is lead-free and halogen-free per Microchip environmental certification.