PIC32MX270F512LT-V/PF - 512KB Flash 40MHz 32-bit MCU | Microchip
MPN: PIC32MX270F512LT-V/PF ✓ Hoạt độngPIC32MX270F512LT-V/PF Tóm tắt
A 32-bit microcontroller (MCU) is an embedded computing element that integrates a processor core, program and data memory, and programmable peripherals on a single silicon die. The PIC32MX2XX family specifically targets mixed-signal embedded applications that need USB connectivity, audio interfaces, and rich analog peripherals while keeping power consumption low. Within the broader PIC32 family, this device sits between the lower-pin PIC32MX1XX series and the higher-memory PIC32MX3XX/5XX/6XX/7XX series.
Key features include Peripheral Pin Select (PPS) for flexible signal routing, a Parallel Master Port (PMP) for graphics or external memory, an RTCC with calendar function, a Charge Time Measurement Unit (CTMU) for capacitive touch or general capacitance measurement, and a 10-bit 1 Msps ADC with auto-scan capability. The device operates from 2.3 V to 3.6 V and supports in-system programming through ICSP.
The architecture is a Harvard-style design featuring a 5-stage pipeline, hardware multiply/divide, and a configurable prefetch cache. Peripheral functions are multiplexed via PPS, allowing most digital functions to be assigned to almost any I/O pin, which simplifies PCB layout and reduces routing congestion.
Typical applications include USB audio devices, USB-to-UART bridges, capacitive touch user interfaces, motor control boards, GPS/fitness wearables, point-of-sale terminals, automotive infotainment subsystems, and low-cost graphics demos using the PMP interface.
When designing with this part, leave I/O pin assignments flexible until the schematic is frozen so PPS remapping can resolve routing conflicts. Always reserve the VBUS, VUSB, and D+/D- pins carefully - USB biasing is internal but requires the standard external series resistor on D-.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a faster path to sourcing and design-in decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX270F512LT-V/PF — 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 PIC32MX270F512LT-V/PF (cùng hình factor và footprint) — khác nhau ở ADC, Package, Core Architecture, Maximum CPU Frequency, Operating Temperature.
PIC32MX270F512LT-V/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX270F512L-I/PF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX270F512L-50I/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX270F512LT-I/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX170F512LT-V/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX150F256LT-V/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX250F256L-V/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX270F512LT-V/PF Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K 32-bit |
| Maximum CPU Frequency | 40 MHz (83 DMIPS) |
| Program Flash Memory | 512 KB (512K x 8) |
| Data SRAM | 64 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40C to +105C (Automotive -V grade) |
| Hộp | 100-pin TQFP (14x14 mm) |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| ADC | 10-bit, up to 1 Msps, auto-scan |
| Analog Comparators | 3 |
| UART Modules | 4 |
| SPI Modules | 3 |
| I2C Modules | 2 |
| I2S Modules | 2 |
| Parallel Master Port (PMP) | Yes, dual read/write buffers |
| Peripheral Pin Select (PPS) | Yes |
| CTMU | Yes (Charge Time Measurement Unit) |
| RTCC | Yes (with calendar) |
| AEC-Q100 Qualification | Yes (Automotive -V grade) |
| Trạng thái RoHS | Compliant |
Hướng dẫn cấu hình chân PIC32MX270F512LT-V/PF 100-pin tqfp (14x14 mm)
Cấu hình chân cho PIC32MX270F512LT-V/PF (100-pin tqfp (14x14 mm) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho PIC32MX270F512LT-V/PF.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
PIC32MX270F512LT-V/PF phù hợp cho 6 Áp dụngs: USB Audio Headset / Sound Card, Capacitive Touch Keypad / Control Panel, USB-to-UART / USB-to-SPI Bridge, Motor Control / BLDC Driver Controller, Industrial HMI / Color TFT Panel, Automotive Infotainment / Telematics.
USB Audio Headset / Sound Card
The PIC32MX270F512LT-V/PF integrates USB 2.0 full-speed OTG alongside two I2S interfaces, allowing a single MCU to act as a USB-to-I2S bridge, USB headset controller, or USB microphone DAC. Its 64 KB SRAM is sufficient to handle 16-bit/48 kHz stereo streams with room for the USB endpoint buffers and mixer logic; at 40 MHz the M4K core has margin for human consumption tasks like HID volume controls. Compared to external USB/I2S chip pairs, this single-chip solution reduces PCB area and BOM. The -40C to +105C automotive temperature range permits automotive audio head units and external infotainment modules.
Được đề xuất
Capacitive Touch Keypad / Control Panel
The integrated Charge Time Measurement Unit (CTMU) on the PIC32MX270F512LT-V/PF supports up to ~16-32 capacitive touch channels via the available I/O pins, depending on layout. Combined with 64 KB SRAM for debounce and gesture detection and 512 KB Flash for graphical button layouts and reference graphs, it can replace mid-Touch capacitive touch controllers in HMI products. The PIC32MX240 and PIC32MX250 variants carry this exact MCU reference design. The -V automotive temperature range permits glove-touch and harsh-environment touch screens.
Được đề xuất
USB-to-UART / USB-to-SPI Bridge
The PIC32MX270F512LT-V/PF includes USB 2.0 full-speed OTG alongside 4 UART and 3 SPI modules, making it ideal as a USB-to-UART or USB-to-SPI bridge for industrial sensor modules and configuration cables. With 512 KB Flash, the part can host industry-proven USB CDC, HID, or vendor-class stacks. The Parallel Master Port (PMP) allows expansion to external SRAM or graphics LCDs. Its small 14x14 mm TQFP package fits inside USB cable dongles and industrial sensor housings. The PPS remapping minimizes pin conflicts on the bridge PCB.
Được đề xuất
Motor Control / BLDC Driver Controller
The PIC32MX270F512LT-V/PF has the PWM and timer modules required for BLDC and stepper motor control, with 64 KB SRAM for state-space control loops and 40 MHz CPU performance for 4 kHz control loops. The 3 on-chip analog comparators can be used for back-EMF zero-cross detection on BLDC motors. Combined with the CTMU for motor overcurrent sensing and RTCC for time-stamped motor logs, the part replaces a dedicated SCADA board plus PLC. The automotive -40C to +105C grade permits harsh industrial and EV motor environments.
Được đề xuất
Industrial HMI / Color TFT Panel
The PIC32MX270F512LT-V/PF integrates a Parallel Master Port (PMP) with dual read/write buffers, allowing direct drive of 320x240 or 480x272 TFT panels with external SRAM frame buffer. Combined with 512 KB Flash for full graphical menus and 64 KB SRAM for variable storage and 40 MHz CPU for pixel processing, it becomes the HMI controller. Its Peripheral Pin Select (PPS) removes pin conflicts between PMP, USB, and UART signals. The -V automotive temperature range permits industrial panels and outdoor HMI displays.
Được đề xuất
Automotive Infotainment / Telematics
The PIC32MX270F512LT-V/PF is AEC-Q100 qualified and operates from -40C to +105C, making it suitable for automotive infotainment subsystems, telematics control units, and body controllers. The USB OTG supports Apple CarPlay / Android Auto / USB media diagnostic port extraction, while I2S handles external audio link. The RTCC with battery backup maintains time-of-day through vehicle battery disconnect. The 512 KB Flash is enough for CAN stack, USB stack, and graphics menus simultaneously.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX270F512LT-V/PF — 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 | PIC32MX270F512L-I/PF | PIC32MX270F512L-50I/PF | PIC32MX270F512LT-I/PF | PIC32MX170F512LT-V/PF | PIC32MX150F256LT-V/PF | PIC32MX250F256L-V/PF |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (14x14) | TQFP-100 (14x14) | TQFP-100 (14x14) | TQFP-100 (14x14) | TQFP-100 (14x14) | TQFP-100 (14x14) | TQFP-100 (14x14) |
| Program Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB (-50%) | 256 KB (-50%) |
| Data SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 32 KB (-50%) |
| Maximum CPU Frequency | 40 MHz | 40 MHz | 50 MHz | 40 MHz | 40 MHz | 40 MHz | 50 MHz |
| Operating Temperature | -40C to +105C (-V automotive) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +105C (-V automotive) | -40C to +105C (-V automotive) | -40C to +105C (-V automotive) |
| USB | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG |
| I2S Interfaces | 2 | 2 | 2 | 2 | 1 | 2 | 2 |
| AEC-Q100 Qualification | Yes | No | No | No | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Highest temperature grade variant in the PIC32MX270F512L 100-pin family (vsPIC32MX270F512L-I/PF)
- Larger Flash (512 KB) vs PIC32MX250F256L family (vsPIC32MX250F256L-V/PF)
- Dual I2S audio interface vs PIC32MX170 family (vsPIC32MX170F512LT-V/PF)
Ghi chú thiết kế
Estimated: USB 100-decoupling and USB differential pair routing requirements. The PIC32MX270F512LT-V/PF integrates a USB 2.0 full-speed transceiver; for reliable USB compliance, route the D+/D- pair as a 90-ohm differential microstrip and place the 15 kohm pull-down on D- within 4 mm of the D- pin. Decouple VUSB3V3 (internal 3.3V USB regulator output) with a 1 uF X7R capacitor. Do not connect VUSB3V3 to the main 3.3V supply - leave it to the internal regulator to control the bus reset behavior of the USB attach sequence.
Estimated: decoupling on a 100-pin TQFP at 40 MHz. Place 100 nF X7R 0.1 uF decoupling capacitors on each VDD/VSS pair and add 4.7 uF bulk caps on the 3.3V main supply rail. The PIC32MX270 core draws a typical 30 mA at 40 MHz, peaking higher with USB transmissions. For automotive -V parts, hold the system reset (nRESET) low during power ramp to prevent corrupted Flash programming.
When migrating to a 100-pin TQFP variant from the 64-pin variant, verify that your assigned pin functions remain available. The 64-pin TQFP exposes fewer peripheral functions, and PPS remap targets differ between pin counts. According to the Microchip datasheet, peripheral functions on the 100-pin variant are a superset, but pin combinations are not always identical - check the 100-pin-specific I/O table before finalizing the BOM.
Estimated: at 40 MHz MIPS32 M4K with USB and all peripherals active, the TQFP-100 part dissipates approximately 240 mW (estimated from datasheet Idd of 30 mA at 3.3V). With a theta_JA of about 50 C/W on a 2-layer PCB without copper pour, this gives a 12C temperature rise - acceptable for industrial use. For automotive -V grade parts at -40C ambient and high CPU utilization, add a top-side copper pour of at least 1 square cm to keep the junction below 105C.
Thông tin tuân thủ
RoHS compliant, AEC-Q100 qualified for automotive (-V grade). Refer to Microchip PIC32MX1XX/2XX family datasheet for full compliance certificates.
