PIC32MX270F512LT-50I/PT - 50MHz 512KB Flash MCU | Microchip
部品番号: PIC32MX270F512LT-50I/PT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $7.45 | $7.45 |
| 10 | $6.78 | $67.80 |
| 100 | $6.05 | $605.00 |
| 500 | $5.42 | $2,710.00 |
| 1,000 | $4.85 | $4,850.00 |
PIC32MX270F512LT-50I/PT 概要
A 32-bit microcontroller (MCU) is a microprocessor that performs arithmetic and logic operations on 32-bit-wide data words in a single instruction cycle, embedded into a single integrated circuit with program memory, data RAM, and peripherals. PIC32MX devices belong to the broader category of 32-bit Flash microcontrollers, sitting architecturally between 8/16-bit legacy MCUs (PIC16, PIC18, PIC24) and 32-bit Cortex-M parts; they target cost-sensitive embedded control, USB, and graphics-interface designs that need higher throughput than 8-bit MCUs without the overhead of a full Cortex-M toolchain.
Key features include 16-channel 10-bit ADC, five 16-bit timers, two comparators, a Real-Time Clock and Calendar (RTCC), a Charge Time Measurement Unit (CTMU) for capacitive touch, and an I2C module. The 50 MHz core delivers 83 DMIPS, ample for USB device classes, small graphics LCDs, and protocol conversion stacks. The 100-pin TQFP exposes up to 85 I/O pins through PPS, which allows most digital peripherals to be remapped to a wide choice of physical pins, simplifying PCB layout.
Architecturally, the M4K core is a 5-stage pipeline Harvard implementation with single-cycle multiply, hardware multiply-accumulate, and a prefetch cache for Flash. Two DMA controllers, three USB endpoints, and JTAG/ICSP debug interfaces round out the silicon. The industrial-grade "-I" suffix extends the operating range to -40C to +85C.
Typical applications include USB peripherals (HID, CDC, MSD), consumer audio accessories using I2S codecs, graphical display modules driven via PMP, capacitive touch user interfaces using CTMU, and industrial control/HMI with on-board USB connectivity. The combination of large Flash, USB OTG, and rich peripherals makes this part a popular drop-in for PIC24/dsPIC upgrades.
When designing with this MCU, allocate decoupling: 100 nF + 4.7 uF near each VDD/AVDD pin pair, follow Microchip's 100-pin TQFP land-pattern recommendations, and use the PPS registers to map I2S, UART, and SPI to convenient pins. The "T" suffix denotes tape-and-reel packaging, and "50I" indicates the 50 MHz speed grade and industrial temperature range.
This page synthesizes distributor pricing, drop-in alternatives from the same PIC32MX family, and design notes compiled from Microchip datasheets and reference designs - context not found on a single manufacturer or distributor page.
ドロップイン代替品: PIC32MX270F512LT-50I/PT — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC32MX270F512LT-50I/PT （同一形状・フットプリント） — 相違点: ADC, Parallel Master Port (PMP), USB, Package, Core Architecture.
クイック比較ツール — 並列比較する代替部品を選択:
PIC32MX270F512L-50I/PT
✅ ドロップイン✓ 在庫あり
$4.65 / 個
データシートを見る →PIC32MX270F512HT-50I/PT
✅ ドロップイン✓ 在庫あり
$4.2 / 個
データシートを見る →PIC32MX270F512LT-50I/PF
✅ ドロップイン✓ 在庫あり
$6.32 / 個
データシートを見る →PIC32MX270F256DT-50I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC32MX250F256L-50I/PT
✅ ドロップイン✓ 在庫あり
$5.75 / 個
データシートを見る →PIC32MX170F512L-50I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC32MX254F128DT-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC32MX270F512LT-50I/PT 最大定格＆電気的特性
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Clock | 50 MHz |
| DMIPS | 83 DMIPS |
| Program Flash Memory | 512 KB (512K x 8) |
| Data SRAM | 64 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| I/O Pins | 85 (maximum) |
| ADC | 10-bit, up to 16 channels, 1 Msps |
| USB | USB 2.0 Full-Speed OTG controller |
| I2S / SPI Modules | 4 (I2S-capable) |
| Timers | 5 x 16-bit |
| Comparators | 2 |
| CTMU (Capacitive Touch) | Yes |
| RTCC (Real-Time Clock/Calendar) | Yes |
| Parallel Master Port (PMP) | Yes (with dual buffers) |
| Peripheral Pin Select (PPS) | Yes |
| 動作温度 | -40C to +85C (industrial) |
| パッケージ | 100-pin TQFP (PT) 12x12 mm |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| MSLレベル | 3 (per JEDEC J-STD-020) |
PIC32MX270F512LT-50I/PT ピン構成
| ピン 1 | RG15 — General purpose I/O with PPS |
| ピン 2 | VDD — Core logic supply (2.3-3.6 V) |
| ピン 3 | RP0/RD0 — Remappable I/O / PMP data |
| ピン 4 | RP1/RD1 — Remappable I/O / PMP data |
| ピン 5 | RP2/RD2 — Remappable I/O / PMP data |
| ピン 6 | RP3/RD3 — Remappable I/O / PMP data |
| ピン 7 | RP4/RD4 — Remappable I/O / PMP data |
| ピン 8 | RP5/RD5 — Remappable I/O / PMP data |
| ピン 9 | VSS — Ground reference |
| ピン 10 | RP6/RD6 — Remappable I/O / PMP data |
| ピン 11 | RP7/RD7 — Remappable I/O / PMP data |
| ピン 12 | RP8/RD8 — Remappable I/O / PMP data |
| ピン 13 | RP9/RD9 — Remappable I/O / PMP data |
| ピン 14 | RP10/RD10 — Remappable I/O / PMP data |
| ピン 15 | RP11/RD11 — Remappable I/O / PMP data |
| ピン 16 | VSS — Ground reference |
| ピン 17 | RP12/RD12 — Remappable I/O / PMP data |
| ピン 18 | RP13/RD13 — Remappable I/O / PMP data |
| ピン 19 | RP14/RD14 — Remappable I/O / PMP data |
| ピン 20 | RP15/RD15 — Remappable I/O / PMP data |
| ピン 21 | AVDD — Analog supply (2.3-3.6 V) |
| ピン 22 | AVSS — Analog ground |
| ピン 23 | AN0/CVD0 — Analog input 0 / CTMU |
| ピン 24 | AN1/CVD1 — Analog input 1 / CTMU |
| ピン 25 | AN2/CVD2 — Analog input 2 / CTMU |
| ピン 26 | AN3/CVD3 — Analog input 3 / CTMU |
| ピン 27 | AN4/CVD4 — Analog input 4 / CTMU |
| ピン 28 | AN5/CVD5 — Analog input 5 / CTMU |
| ピン 29 | AN6/CVD6 — Analog input 6 / CTMU |
| ピン 30 | AN7/CVD7 — Analog input 7 / CTMU |
| ピン 31 | AN8 — Analog input 8 |
| ピン 32 | AN9 — Analog input 9 |
| ピン 33 | AN10 — Analog input 10 |
| ピン 34 | AN11 — Analog input 11 |
| ピン 35 | AN12 — Analog input 12 |
| ピン 36 | AN13 — Analog input 13 |
| ピン 37 | AN14 — Analog input 14 |
| ピン 38 | AN15 — Analog input 15 |
| ピン 39 | VDD — Core logic supply (2.3-3.6 V) |
| ピン 40 | ENVREG — Voltage regulator enable (tie to VDD for internal regulator) |
| ピン 41 | VREF- — ADC voltage reference negative (tie to AVSS) |
| ピン 42 | VREF+ — ADC voltage reference positive |
| ピン 43 | OA1OUT — Op-amp 1 output |
| ピン 44 | OA1IN- — Op-amp 1 inverting input |
| ピン 45 | OA1IN+ — Op-amp 1 non-inverting input |
| ピン 46 | C1IN- — Comparator 1 inverting input |
| ピン 47 | C1IN+ — Comparator 1 non-inverting input |
| ピン 48 | C1OUT — Comparator 1 output |
| ピン 49 | C2IN- — Comparator 2 inverting input |
| ピン 50 | C2IN+ — Comparator 2 non-inverting input |
| ピン 51 | C2OUT — Comparator 2 output |
| ピン 52 | VSS — Ground reference |
| ピン 53 | OSC1/CLKI — Crystal oscillator input or external clock |
| ピン 54 | OSC2/CLKO — Crystal oscillator output |
| ピン 55 | SOSCI — Secondary oscillator input (32.768 kHz) |
| ピン 56 | SOSCO — Secondary oscillator output |
| ピン 57 | RC12 — General purpose I/O |
| ピン 58 | RC13 — General purpose I/O |
| ピン 59 | RC14 — General purpose I/O |
| ピン 60 | RC15 — General purpose I/O |
| ピン 61 | VDD — Core logic supply (2.3-3.6 V) |
| ピン 62 | PGEC1 — ICSP programming clock 1 |
| ピン 63 | PGED1 — ICSP programming data 1 |
| ピン 64 | PGEC2 — ICSP programming clock 2 |
| ピン 65 | PGED2 — ICSP programming data 2 |
| ピン 66 | MCLR — Master clear reset (active low) |
| ピン 67 | RA0 — General purpose I/O |
| ピン 68 | RA1 — General purpose I/O |
| ピン 69 | RA2 — General purpose I/O |
| ピン 70 | RA3 — General purpose I/O |
| ピン 71 | RA4 — General purpose I/O |
| ピン 72 | RA5 — General purpose I/O |
| ピン 73 | VSS — Ground reference |
| ピン 74 | RA6 — General purpose I/O |
| ピン 75 | RA7 — General purpose I/O |
| ピン 76 | RB0 — Programmable I/O |
| ピン 77 | RB1 — Programmable I/O |
| ピン 78 | RB2 — Programmable I/O |
| ピン 79 | RB3 — Programmable I/O |
| ピン 80 | RB4 — Programmable I/O |
| ピン 81 | RB5 — Programmable I/O |
| ピン 82 | RB6 — Programmable I/O |
| ピン 83 | RB7 — Programmable I/O |
| ピン 84 | RB8 — Programmable I/O |
| ピン 85 | RB9 — Programmable I/O |
| ピン 86 | RB10 — Programmable I/O |
| ピン 87 | RB11 — Programmable I/O |
| ピン 88 | RB12 — Programmable I/O |
| ピン 89 | RB13 — Programmable I/O |
| ピン 90 | RB14 — Programmable I/O |
| ピン 91 | RB15 — Programmable I/O |
| ピン 92 | VSS — Ground reference |
| ピン 93 | RF0 — General purpose I/O |
| ピン 94 | RF1 — General purpose I/O |
| ピン 95 | RF2 — General purpose I/O / USB Vbus detect |
| ピン 96 | RF3 — General purpose I/O / USB ID |
| ピン 97 | RF4 — General purpose I/O / USB D- |
| ピン 98 | RF5 — General purpose I/O / USB D+ |
| ピン 99 | VDD — Core logic supply (2.3-3.6 V) |
| ピン 100 | RG0 — General purpose I/O |
主な用途
PIC32MX270F512LT-50I/PT の用途: 8 件s: USB HID Peripheral Device, USB Audio Device with I2S Codec, Graphical LCD HMI with PMP, Capacitive Touch User Interface, Industrial Sensor Hub with USB CDC, Consumer Appliance Control Board, USB-to-UART/I2C/SPI Bridge, Data Logger with USB Mass Storage.
USB HID Peripheral Device
The PIC32MX270F512LT-50I/PT is well suited for USB Human Interface Device peripherals such as custom keyboards, mice, and game controllers because its integrated USB 2.0 Full-Speed OTG controller supports up to 3 endpoints with on-chip PHY. The 50 MHz M4K core delivers 83 DMIPS, enough headroom for HID report parsing plus system logic; the 512 KB Flash stores the USB stack (Microchip MLA or MPLAB Harmony) plus application firmware, while 64 KB SRAM holds HID report buffers and descriptor tables. The 100-pin TQFP exposes 85 I/O via PPS, allowing flexible mapping of buttons, LEDs, and matrix-scan lines.
おすすめ
USB Audio Device with I2S Codec
The PIC32MX270F512LT-50I/PT fits USB audio applications because four I2S-capable serial modules can drive an external stereo DAC like the PCM5102A or codec like the SGTL5000, while the on-chip USB OTG controller handles the USB Audio Class 1.0 enumeration. The 50 MHz core, 64 KB SRAM, and 512 KB Flash comfortably host the USB Audio class driver plus sample-rate conversion. PPS lets the I2S SCK/WS/SD lines route to convenient PCB locations, simplifying layout. Industrial -40 to +85C enables automotive infotainment accessories.
おすすめ
Graphical LCD HMI with PMP
The PIC32MX270F512LT-50I/PT drives small graphical TFT LCDs through its Parallel Master Port (PMP) with dual read/write buffers, supporting 8-bit and 16-bit parallel interfaces up to QVGA resolutions. The 50 MHz core and 64 KB SRAM hold frame buffers and font tables, while 512 KB Flash stores the GUI library, touch handlers, and application logic. CTMU enables resistive touch sensing without an external ADC. PPS flexibility lets the PMP data lines coexist with other peripherals on the same 100-pin TQFP footprint, ideal for industrial control panels and appliance HMI.
おすすめ
Capacitive Touch User Interface
The PIC32MX270F512LT-50I/PT's integrated Charge Time Measurement Unit (CTMU) provides hardware-assisted capacitive touch sensing on up to 16 channels, eliminating external touch ICs. Combined with the 10-bit ADC and PPS-driven I/O, designers can implement sliders, wheels, and matrix-touch panels directly on the 100-pin TQFP. The 50 MHz core handles touch scanning, debouncing, and I2C reporting to a host, while 512 KB Flash leaves ample room for GUI libraries. Industrial temperature grade -40 to +85C supports appliance and automotive interior use.
おすすめ
Industrial Sensor Hub with USB CDC
The PIC32MX270F512LT-50I/PT acts as an industrial sensor hub because it aggregates analog signals through its 16-channel 10-bit ADC, communicates to host PCs via USB CDC (virtual COM port) using the on-chip USB OTG, and timestamps events via the integrated RTCC. The 50 MHz core and 64 KB SRAM buffer multi-sensor readings, while 512 KB Flash hosts the USB CDC class driver and protocol stack. Industrial -40 to +85C operation and the 100-pin TQFP's generous I/O support direct screw-terminal connections to analog and digital sensors on a DIN-rail enclosure.
おすすめ
Consumer Appliance Control Board
The PIC32MX270F512LT-50I/PT fits consumer appliance control boards (washing machines, coffee machines, smart ovens) because it integrates USB for service/diagnostics, PMP for character or graphical LCDs, CTMU for capacitive buttons, and RTCC for scheduling. The 100-pin TQFP exposes enough I/O for relay drivers, triac interfaces, and keypad scanning. The 512 KB Flash stores UI assets and the motor-control state machine, while the 64 KB SRAM handles display buffers and event queues. Industrial temperature grade plus Microchip's long-term supply commitment suits 7-10 year appliance lifecycles.
おすすめ
USB-to-UART/I2C/SPI Bridge
The PIC32MX270F512LT-50I/PT serves as a USB-to-multi-protocol bridge because its USB OTG enumerates as CDC or vendor class while four I2S/SPI modules and the I2C controller expose UART, SPI, and I2C ports to a downstream system. The 50 MHz core plus 64 KB SRAM handles real-time protocol conversion and buffering, and 512 KB Flash stores multiple protocol stacks. PPS lets the bridge pins route to convenient 100-pin TQFP pads. Industrial temperature and surface-mount form factor fit embedded design-tool dongles and field-service adapters.
おすすめ
Data Logger with USB Mass Storage
The PIC32MX270F512LT-50I/PT supports USB Mass Storage Class device mode for portable data loggers, presenting itself to a host PC as a removable drive while writing sensor data to an external SD card over SPI. The 512 KB Flash stores the MSD class driver plus FAT file-system library, and 64 KB SRAM handles sector buffers. The 100-pin TQFP's abundant I/O lets the board accept multiple analog channels via the on-chip 10-bit ADC while the RTCC timestamps entries. Industrial temperature supports outdoor and vehicle-mounted logger applications.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC32MX270F512LT-50I/PT — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC32MX270F512L-50I/PT | PIC32MX270F256DT-50I/PT | PIC32MX250F256L-50I/PT | PIC32MX170F512L-50I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (PT) 12x12 mm | TQFP-100 (PT) - same | TQFP-100 (PT) - same | TQFP-100 (PT) - same | TQFP-100 (PT) - same |
| Core / Architecture | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| Maximum Clock | 50 MHz (83 DMIPS) | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Flash Memory | 512 KB | 512 KB | 256 KB (-50%) | 256 KB (-50%) | 512 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| USB Controller | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | No USB (FS Host/Device on F256L only) | USB 2.0 FS OTG |
| CTMU (Capacitive Touch) | Yes | Yes | Yes | Yes | No |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Approx. Unit Price (qty 1) | $7.45 | ~$7.10 (tray packaging) | ~$6.50 | ~$6.30 | ~$7.20 |
主な差別化要因
- Largest Flash in PIC32MX2xx 100-pin family （vs PIC32MX270F256DT-50I/PT)
- CTMU capacitive touch integrated （vs PIC32MX170F512L-50I/PT)
- USB OTG full-speed on-chip PHY （vs PIC32MX250F256L-50I/PT)
- 50 MHz speed grade in 100-pin TQFP （vs PIC32MX270F512L-50I/PT (tray variant))
設計ノート
Place one 100 nF decoupling capacitor as close as possible to each of the four VDD/AVDD pin pairs (pins 2/9, 21/22, 39/52, 61/73, 99/92) to suppress switching noise on the 50 MHz core and 10-bit ADC. Add a bulk 4.7 uF to 10 uF tantalum or ceramic capacitor at the board entry point. ENVREG (pin 40) must be tied to VDD to enable the internal 1.8 V core voltage regulator; if VDD is below 2.5 V, an external regulator is required. AVDD and VDD should be powered from the same source with a ferrite bead between them to keep ADC reference clean.
Route the 8 MHz primary crystal traces (OSC1/OSC2, pins 53/54) as short as possible and guard them with a ground pour on both sides; keep crystal traces away from switching signals and the USB D+/D- differential pair (pins 97/98). The USB D+/D- traces must be 90-ohm differential, length-matched, and routed over a continuous ground plane; place the 15 kohm pull-down on D- and the USB VBUS sense network on RF2 (pin 95) per the Microchip USB design checklist. The 100-pin TQFP land pattern should follow IPC-7351 nominal-density pads with 0.4 mm pitch.
Do not skip the MCLR (pin 66) pull-up resistor (typically 10 kohm); the MCLR pin is also the ICSP programming voltage input, and a missing pull-up prevents reliable debug/programming. Configure Peripheral Pin Select (PPS) unlock sequence (SYSKEY) before assigning digital peripherals to physical pins; without unlocking, PPS assignments are silently ignored. When migrating from PIC24/dsPIC firmware, remember the M4K core is little-endian and uses a 5-stage pipeline - flush/invalidate Flash regions around DMA buffers to avoid stale instruction fetches.
The PIC32MX270F512LT-50I/PT is rated for industrial -40C to +85C operation; at 50 MHz with all peripherals active the core typically dissipates under 100 mW. Estimated: at 3.3 V VDD x ~30 mA active current the die sees ~100 mW, and the TQFP-100 thermal resistance theta_JA is approximately 35 C/W on a 4-layer JEDEC test board, yielding a junction temperature rise of only 3-4C. Forced-air cooling is unnecessary in sealed enclosures at typical consumer-appliance ambient temperatures.
When using the Parallel Master Port (PMP) to drive a graphical LCD, group the 8/16-bit data lines on adjacent port pins (RD0-RD15 on pins 3-20) and the control signals (RD, WR, CS, RS) on RE/RF/RG pins; route the data bus as byte lanes with length matching within 2 mm. PPS allows the PMP chip-select lines to be mapped to any digital I/O, but choose pins near the LCD connector to avoid crossing the data bus. Add series damping resistors (22-33 ohm) on PMP control lines if the LCD cable exceeds 50 mm to reduce ringing.
コンプライアンス情報
RoHS compliant per Microchip product page. Industrial -40C to +85C; not AEC-Q100 qualified - choose PIC32MX274F256B-I/Z if automotive qualification is required.