PIC32MX270F512L-50I/PT - 50MHz 32-bit MCU 512KB Flash | Microchip
MPN: PIC32MX270F512L-50I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 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 Overview
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.
Drop-in alternatives for PIC32MX270F512L-50I/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC32MX270F512L-50I/PT (same form factor and footprint) — differing in Package, ADC, Parallel Master Port (PMP), Maximum CPU Speed, USB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX270F512LT-50I/PT
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →PIC32MX250F256L-50I/PT
✅ Drop-In✓ In Stock
$5.75 / Unit
View Datasheet →PIC32MX170F512L-50I/PF
✅ Drop-In✓ In Stock
$5.55 / Unit
View Datasheet →PIC32MX270F512HT-50I/PT
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →PIC32MX230F256D-50I/PT
✅ Drop-In✓ In Stock
$4.15 / Unit
View Datasheet →PIC32MX270F256DT-50I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX270F512L-50I/PT Maximum Ratings & Electrical Characteristics
| 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 |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| Package | 100-pin TQFP (PT) 12x12 mm |
| Mounting Type | 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 Status | Compliant |
PIC32MX270F512L-50I/PT Pin Configuration
| Pin 1 | RPB5/PMD5/RG0 — PPS remappable I/O / PMP data |
| Pin 2 | RPB6/PMD6/RG1 — PPS remappable I/O / PMP data |
| Pin 3 | RPB7/PMD7/RG2 — PPS remappable I/O / PMP data |
| Pin 4 | VSS — Ground |
| Pin 5 | VDD — Digital supply (2.3-3.6V) |
| Pin 6 | RPB8/SCL1 — PPS I/O / I2C1 clock |
| Pin 7 | RPB9/SDA1 — PPS I/O / I2C1 data |
| Pin 8 | RPC6/PMA1 — PPS I/O / PMP address |
| Pin 9 | RPC7/PMA0 — PPS I/O / PMP address |
| Pin 10 | RPC8/PMA5 — PPS I/O / PMP address |
| Pin 11 | RPC9/PMA6 — PPS I/O / PMP address |
| Pin 12 | VSS — Ground |
| Pin 13 | VDD — Digital supply (2.3-3.6V) |
| Pin 14 | VREF-/CVREF- — ADC negative reference |
| Pin 15 | VREF+/CVREF+ — ADC positive reference |
| Pin 16 | AVSS — Analog ground |
| Pin 17 | AVDD — Analog supply (2.3-3.6V) |
| Pin 18 | AN0/C2IN-/C1IN-/CN2 — ADC input / comparator input |
| Pin 19 | AN1/C2IN+/C1IN+ — ADC input / comparator input |
| Pin 20 | AN2/C1IN-/C2IN- — ADC input / comparator input |
| Pin 21 | AN3/C1IN+/C2IN+ — ADC input / comparator input |
| Pin 22 | AN4/C1OUT — ADC input / comparator output |
| Pin 23 | AN5/C2OUT — ADC input / comparator output |
| Pin 24 | AN6 — ADC input |
| Pin 25 | AN7 — ADC input |
| Pin 26 | AN8 — ADC input |
| Pin 27 | AN9 — ADC input |
| Pin 28 | AN10 — ADC input |
| Pin 29 | AN11 — ADC input |
| Pin 30 | VSS — Ground |
| Pin 31 | VDD — Digital supply (2.3-3.6V) |
| Pin 32 | AN12 — ADC input |
| Pin 33 | AN13 — ADC input |
| Pin 34 | AN14 — ADC input |
| Pin 35 | AN15 — ADC input |
| Pin 36 | AN16 — ADC input |
| Pin 37 | AN17 — ADC input |
| Pin 38 | AN18 — ADC input |
| Pin 39 | AN19 — ADC input |
| Pin 40 | AN20 — ADC input |
| Pin 41 | AN21 — ADC input |
| Pin 42 | AN22 — ADC input |
| Pin 43 | AN23 — ADC input |
| Pin 44 | AN24 — ADC input |
| Pin 45 | AN25 — ADC input |
| Pin 46 | AN26 — ADC input |
| Pin 47 | AN27 — ADC input |
| Pin 48 | VSS — Ground |
| Pin 49 | VDD — Digital supply (2.3-3.6V) |
| Pin 50 | RPB10/SDA2 — PPS I/O / I2C2 data |
| Pin 51 | RPB11/SCL2 — PPS I/O / I2C2 clock |
| Pin 52 | RPB12 — PPS remappable I/O |
| Pin 53 | RPB13 — PPS remappable I/O |
| Pin 54 | RPB14 — PPS remappable I/O |
| Pin 55 | RPB15 — PPS remappable I/O |
| Pin 56 | VSS — Ground |
| Pin 57 | VDD — Digital supply (2.3-3.6V) |
| Pin 58 | SOSCI/RPC13 — Secondary oscillator input |
| Pin 59 | SOSCO/RPC14 — Secondary oscillator output |
| Pin 60 | OSC1/CLKI/RC15 — Primary oscillator input |
| Pin 61 | OSC2/CLKO/RC14 — Primary oscillator output |
| Pin 62 | VDD — Digital supply (2.3-3.6V) |
| Pin 63 | VSS — Ground |
| Pin 64 | RPD0/PMD0/INT0 — PPS I/O / PMP data / ext interrupt |
| Pin 65 | RPD1/PMD1 — PPS I/O / PMP data |
| Pin 66 | RPD2/PMD2 — PPS I/O / PMP data |
| Pin 67 | RPD3/PMD3 — PPS I/O / PMP data |
| Pin 68 | RPD4/PMD4 — PPS I/O / PMP data |
| Pin 69 | RPD5/PMRD — PPS I/O / PMP read strobe |
| Pin 70 | RPD6/PMWR — PPS I/O / PMP write strobe |
| Pin 71 | RPD7/PMA17 — PPS I/O / PMP address |
| Pin 72 | RPD8/PMA18 — PPS I/O / PMP address |
| Pin 73 | RPD9/PMA19 — PPS I/O / PMP address |
| Pin 74 | RPD10/PMA20 — PPS I/O / PMP address |
| Pin 75 | RPD11/PMA21 — PPS I/O / PMP address |
| Pin 76 | RPD12/PMCS1 — PPS I/O / PMP chip select |
| Pin 77 | RPD13/PMCS2 — PPS I/O / PMP chip select |
| Pin 78 | VSS — Ground |
| Pin 79 | VDD — Digital supply (2.3-3.6V) |
| Pin 80 | RPE0/PMALL/PMA22 — PPS I/O / PMP address latch |
| Pin 81 | RPE1/PMALH/PMA23 — PPS I/O / PMP address latch |
| Pin 82 | RPE2/PMD8 — PPS I/O / PMP data |
| Pin 83 | RPE3/PMD9 — PPS I/O / PMP data |
| Pin 84 | RPE4/PMD10 — PPS I/O / PMP data |
| Pin 85 | RPE5/PMD11 — PPS I/O / PMP data |
| Pin 86 | RPE6/PMD12 — PPS I/O / PMP data |
| Pin 87 | RPE7/PMD13 — PPS I/O / PMP data |
| Pin 88 | RPE8/PMD14 — PPS I/O / PMP data |
| Pin 89 | RPE9/PMD15 — PPS I/O / PMP data |
| Pin 90 | VSS — Ground |
| Pin 91 | VDD — Digital supply (2.3-3.6V) |
| Pin 92 | DBG0/RPF0 — ICD debug / PPS I/O |
| Pin 93 | DBG1/RPF1 — ICD debug / PPS I/O |
| Pin 94 | DBG2/RPF2 — ICD debug / PPS I/O |
| Pin 95 | DBG3/RPF3 — ICD debug / PPS I/O |
| Pin 96 | TRCLK/RPF4 — Trace clock / PPS I/O |
| Pin 97 | TRD0/RPF5 — Trace data / PPS I/O |
| Pin 98 | TRD1/RPF6 — Trace data / PPS I/O |
| Pin 99 | TRD2/RPF7 — Trace data / PPS I/O |
| Pin 100 | TRD3/RPF8 — Trace data / PPS I/O |
Typical Applications
PIC32MX270F512L-50I/PT is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX270F512L-50I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- Higher Flash with CAN 2.0B in same 100-pin TQFP (vs PIC32MX170F512L-50I/PF)
- Lower-cost same-Flash variant without CAN (vs PIC32MX250F256L-50I/PT)
- Identical silicon with tape-and-reel packaging (vs PIC32MX270F512LT-50I/PT)
Design Notes
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.
Compliance Information
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.