PIC32MX270F512HT-50I/PT - 50MHz 32-bit MCU, 512KB Flash | Microchip
MPN: PIC32MX270F512HT-50I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.92 | $6.92 |
| 10 | $6.2 | $62.00 |
| 100 | $5.5 | $550.00 |
| 500 | $4.85 | $2,425.00 |
| 1,000 | $4.2 | $4,200.00 |
PIC32MX270F512HT-50I/PT Overview
A 32-bit microcontroller (MCU) is an embedded processor that integrates CPU core, program Flash, data SRAM, and a wide range of peripherals on a single silicon die, replacing discrete logic blocks and enabling compact, low-power connected designs. Within the broader embedded hierarchy, a 32-bit MCU sits between 8/16-bit microcontrollers (lower code density, simpler peripherals) and application processors (higher clock, MMU, Linux-capable). The PIC32MX270 specifically belongs to the MIPS M4K core family, which is widely adopted in audio, USB, and graphics interface designs because of its deterministic interrupt latency and DSP-like multiply/divide throughput.
Key features include Peripheral Pin Select for flexible peripheral-to-pin mapping, a Parallel Master Port (PMP) with dual read/write buffers aimed at TFT/graphical LCD interfacing, dual I2S modules enabling direct connection to stereo DACs and ADCs, an on-chip full-speed USB 2.0 controller with internal transceiver, and a 10-bit 1 MSPS ADC that supports up to 28 analog input channels. The PPS engine allows remapping of digital peripherals (UART, SPI, I2C, etc.) to most general-purpose I/O pins, simplifying PCB layout.
Architecturally, the PIC32MX270 employs a five-stage pipeline MIPS32 M4K core with single-cycle multiplication, hardware multiply-accumulate, and zero-wait-state Flash access via an internal 128-bit wide prefetch buffer, delivering 1.65 DMIPS/MHz. The USB 2.0 full-speed controller with internal PHY eliminates external transceivers, and the PMP module accelerates PFS by 65% over software-driven bit-banging for TFT displays. The 64 KB SRAM is partitioned for general-purpose use with configurable DMA paths to peripherals.
Typical applications include USB audio streaming devices (USB speakers, headsets, USB microphones), small graphical HMI with TFT displays driven by PMP, embedded web servers with TCP/IP stacks on USB or UART, industrial control scanners and instrumentation, and low-cost graphics terminals for industrial automation.
When designing with the PIC32MX270, plan decoupling around the 2.5V internal regulator: place 10uF + 0.1uF close to VDDCORE/VDD pins, and tie VBUS through a 10kOhm pull-down when used in self-powered USB configurations.
This page synthesizes cross-brand distributor pricing, drop-in alternatives, and practical design notes (PPS, PMP, USB bootstrap) not aggregated on the manufacturer datasheet.
Drop-in alternatives for PIC32MX270F512HT-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 PIC32MX270F512HT-50I/PT (same form factor and footprint) — differing in Package, ADC, Parallel Master Port (PMP), SPI Modules, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX270F512H-50I/PT
✅ Drop-In✓ In Stock
$4.61 / Unit
View Datasheet →PIC32MX270F512HT-50I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.74 / Unit
View Datasheet →PIC32MX170F512HT-50I/PT
✅ Drop-In✓ In Stock
$4.32 / Unit
View Datasheet →PIC32MX250F256H-50I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.55 / Unit
View Datasheet →PIC32MX254F128D-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
Contact for price
View Datasheet →PIC32MX230F256D-50I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.15 / Unit
View Datasheet →PIC32MX270F512HT-50I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Bit Width | 32-bit |
| Maximum Clock Frequency | 50 MHz |
| DMIPS Performance | 83 DMIPS |
| Program Flash Memory | 512 KB (512K x 8) |
| SRAM | 64 KB |
| Package | 64-pin TQFP (PT), 10x10 mm |
| Operating Temperature | -40C to +85C (Industrial) |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| GPIO Count (max) | 53 (with PPS remapping) |
| ADC | 10-bit, 1 MSPS, up to 28 channels |
| USB | USB 2.0 Full-Speed Device/Host/OTG, internal PHY |
| SPI Modules | 4 (incl. 2 with I2S) |
| I2S Modules | 2 |
| UART Modules | 4 |
| I2C Modules | 4 |
| Parallel Master Port (PMP) | Yes, dual read/write buffers |
| Peripheral Pin Select (PPS) | Yes |
| DMA Channels | 8 |
| Comparators | 3 |
| Timers | 5 x 16-bit, 2 x 32-bit |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| RoHS Status | Compliant |
PIC32MX270F512HT-50I/PT Pin Configuration
| Pin 1 | RPB3 — PPS-reconfigurable I/O pin / AN5 |
| Pin 2 | RPB4 — PPS-reconfigurable I/O pin / AN6 |
| Pin 3 | RPB5 — PPS-reconfigurable I/O pin / AN7 |
| Pin 4 | VDD — Positive supply (2.3V-3.6V) |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RPB7 — PPS-reconfigurable I/O pin |
| Pin 7 | RPC0 — PPS-reconfigurable I/O pin |
| Pin 8 | RPC1 — PPS-reconfigurable I/O pin |
| Pin 9 | RPC2 — PPS-reconfigurable I/O pin |
| Pin 10 | RPC3 — PPS-reconfigurable I/O pin |
| Pin 11 | RPC4 — PPS-reconfigurable I/O pin |
| Pin 12 | RPC5 — PPS-reconfigurable I/O pin |
| Pin 13 | RPC6 — PPS-reconfigurable I/O pin |
| Pin 14 | RPC7 — PPS-reconfigurable I/O pin |
| Pin 15 | RPC8 — PPS-reconfigurable I/O pin |
| Pin 16 | RPC9 — PPS-reconfigurable I/O pin |
| Pin 17 | VDD — Positive supply (2.3V-3.6V) |
| Pin 18 | VSS — Ground reference |
| Pin 19 | RD0 — PPS-reconfigurable I/O pin |
| Pin 20 | RD1 — PPS-reconfigurable I/O pin |
| Pin 21 | RD2 — PPS-reconfigurable I/O pin |
| Pin 22 | RD3 — PPS-reconfigurable I/O pin |
| Pin 23 | RD4 — PPS-reconfigurable I/O pin |
| Pin 24 | RD5 — PPS-reconfigurable I/O pin |
| Pin 25 | RD6 — PPS-reconfigurable I/O pin |
| Pin 26 | RD7 — PPS-reconfigurable I/O pin |
| Pin 27 | RD8 — PPS-reconfigurable I/O pin |
| Pin 28 | RD9 — PPS-reconfigurable I/O pin |
| Pin 29 | RD10 — PPS-reconfigurable I/O pin |
| Pin 30 | RD11 — PPS-reconfigurable I/O pin |
| Pin 31 | RD12 — PPS-reconfigurable I/O pin |
| Pin 32 | RD13 — PPS-reconfigurable I/O pin |
| Pin 33 | RD14 — PPS-reconfigurable I/O pin |
| Pin 34 | RD15 — PPS-reconfigurable I/O pin |
| Pin 35 | VSS — Ground reference |
| Pin 36 | VDD — Positive supply (2.3V-3.6V) |
| Pin 37 | RA0 — PPS-reconfigurable I/O pin |
| Pin 38 | RA1 — PPS-reconfigurable I/O pin |
| Pin 39 | RA2 — PPS-reconfigurable I/O pin |
| Pin 40 | RA3 — PPS-reconfigurable I/O pin |
| Pin 41 | RA4 — PPS-reconfigurable I/O pin |
| Pin 42 | RA5 — PPS-reconfigurable I/O pin |
| Pin 43 | RA6 — PPS-reconfigurable I/O pin |
| Pin 44 | RA7 — PPS-reconfigurable I/O pin |
| Pin 45 | RA8 — PPS-reconfigurable I/O pin |
| Pin 46 | RA9 — PPS-reconfigurable I/O pin |
| Pin 47 | RA10 — PPS-reconfigurable I/O pin |
| Pin 48 | RA11 — PPS-reconfigurable I/O pin |
| Pin 49 | RA12 — PPS-reconfigurable I/O pin |
| Pin 50 | RA13 — PPS-reconfigurable I/O pin |
| Pin 51 | RA14 — PPS-reconfigurable I/O pin |
| Pin 52 | RA15 — PPS-reconfigurable I/O pin |
| Pin 53 | VSS — Ground reference |
| Pin 54 | VDD — Positive supply (2.3V-3.6V) |
| Pin 55 | RB0 — PPS-reconfigurable I/O pin / AN0 |
| Pin 56 | RB1 — PPS-reconfigurable I/O pin / AN1 |
| Pin 57 | RB2 — PPS-reconfigurable I/O pin / AN2 |
| Pin 58 | RB3 — PPS-reconfigurable I/O pin / AN3 |
| Pin 59 | RB4 — PPS-reconfigurable I/O pin / AN4 |
| Pin 60 | RB5 — PPS-reconfigurable I/O pin / AN8 |
| Pin 61 | RB6 — PPS-reconfigurable I/O pin / AN9 |
| Pin 62 | RB7 — PPS-reconfigurable I/O pin / AN10 |
| Pin 63 | RB8 — PPS-reconfigurable I/O pin / AN11 |
| Pin 64 | RB9 — PPS-reconfigurable I/O pin / AN12 |
Typical Applications
PIC32MX270F512HT-50I/PT is suitable for 6 applications: USB Audio Streaming Device, TFT HMI / Graphical Control Panel, Embedded Web Server (TCP/IP over Ethernet or Wi-Fi), Industrial Control Scanner / Data Logger, USB Barcode / QR Scanner, Portable Medical Measurement Device.
USB Audio Streaming Device
The PIC32MX270F512HT-50I/PT is well suited to USB audio applications because it integrates a USB 2.0 full-speed controller with on-chip PHY plus two dedicated I2S audio interfaces in a 64-pin TQFP package. At 50 MHz / 83 DMIPS, the M4K core sustains 48 kHz 16-bit stereo USB isochronous transfer with dual I2S feeds to external DACs such as the Texas Instruments PCM5101A or Cirrus Logic CS4344. The internal PHY eliminates the need for an external transceiver, and 512 KB Flash holds the USB audio class driver plus a small RTOS without external memory. Consider this part for USB headsets and USB-to-I2S bridge designs.
Recommended
TFT HMI / Graphical Control Panel
The PIC32MX270F512HT-50I/PT fits graphical HMI with TFT LCDs because of its Parallel Master Port (PMP) with dual read/write buffers and 512 KB of Flash for component/widget storage. The PMP sustains up to 16-bit parallel transfers to ST7789 or ILI9341 controllers, offloading CPU during display refresh. At 50 MHz, the M4K core refreshes QVGA (320x240) panels at 30+ FPS from internal SRAM, and Peripheral Pin Select (PPS) lets the designer remap SPI-based touch controllers to free pins without re-routing. Use this part for industrial HMI panels, control boards, and small kiosk displays.
Recommended
Embedded Web Server (TCP/IP over Ethernet or Wi-Fi)
The PIC32MX270F512HT-50I/PT fits small embedded web server designs because of its 50 MHz MIPS M4K core with 83 DMIPS, 512 KB Flash for the Microchip TCP/IP stack (HTTP, DHCP, SNMP, etc.), and 64 KB SRAM for socket buffers. The four UART modules let it bridge to Wi-Fi modules (e.g., Microchip ATWINC1500) or external Ethernet MAC+PHYs over SPI, while PPS remapping simplifies the SPI-to-pin layout. Use this part for industrial sensors, building automation gateways, and remote monitoring nodes where TCP/IP over a serial-to-Wi-Fi bridge is needed.
Recommended
Industrial Control Scanner / Data Logger
The PIC32MX270F512HT-50I/PT fits industrial scanners and data loggers because of its 10-bit 1 MSPS ADC with up to 28 channels, 8 DMA channels for high-throughput sensor sampling, and 64-pin TQFP package with industrial -40C to +85C temperature rating. At 50 MHz the M4K core pre-processes samples from multiple analog sensors via DMA while leaving CPU headroom for USB-based local storage or reporting. Engineers can pair this MCU with external 24-bit sigma-delta ADCs over SPI for high-precision measurement, leveraging the 512 KB Flash for calibration tables and sensor firmware.
Recommended
USB Barcode / QR Scanner
The PIC32MX270F512HT-50I/PT fits USB-connected barcode or QR scanners because of its USB 2.0 full-speed device interface with on-chip PHY and 50 MHz MIPS M4K core that decodes image sensor data in real time. The two I2S ports are repurposable as high-throughput SPI channels to a parallel image sensor, while 512 KB Flash stores decoder firmware plus a USB HID or CDC stack. Use it for handheld scanners, fixed-mount industrial readers, and POS peripherals that demand plug-and-play USB enumeration plus fast decode of 1D/2D symbologies.
Recommended
Portable Medical Measurement Device
The PIC32MX270F512HT-50I/PT fits portable medical devices such as pulse oximeters, glucometers, and compact patient monitors because of its low-power MIPS M4K architecture, integrated USB for charging/data, and 10-bit 1 MSPS ADC for analog front-end conditioning. The 64-pin TQFP package operating from 2.3 V to 3.6 V supports single-cell Li-ion or 2xAA battery configurations, and the dual I2S ports drive small piezo buzzers or audio prompts. Use this part for handheld diagnostic tools that need reliable USB CDC charging plus analog sensor readout within a compact PCB.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX270F512HT-50I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX270F512H-50I/PT | PIC32MX270F512HT-50I/MR | PIC32MX170F512HT-50I/PT | PIC32MX250F256H-50I/PT | PIC32MX230F256D-50I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin QFN (9x9 mm) - same die | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Core | MIPS32 M4K @ 50 MHz | MIPS32 M4K @ 50 MHz | MIPS32 M4K @ 50 MHz | MIPS32 M4K @ 50 MHz | MIPS32 M4K @ 50 MHz | MIPS32 M4K @ 50 MHz |
| Flash | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB (-50%) | 256 KB (-50%) |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| I2S Modules | 2 | 2 | 2 | 0 | 2 | 0 |
| PMP (Parallel Master Port) | Yes | Yes | Yes | No | Yes | No |
| USB 2.0 FS with on-chip PHY | Yes | Yes | Yes | Yes | Yes | No |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Dual I2S audio interfaces (vs PIC32MX170F512HT-50I/PT)
- Parallel Master Port (PMP) (vs PIC32MX230F256D-50I/PT)
- TQFP-64 package option for hand assembly (vs PIC32MX270F512HT-50I/MR)
Design Notes
Place a 10uF ceramic capacitor in parallel with a 0.1uF decoupling capacitor as close as possible to each VDD/VSS pair (pins 4/5, 17/18, 35/36, 53/54). The PIC32MX270F512HT-50I/PT has internal 2.5V LDO regulation; adding bulk capacitance on the 3.3V rail improves USB inrush current behavior. Avoid running the digital 3.3V supply into the analog AVdd pin without a ferrite bead filter to prevent switching noise from coupling into the ADC reference.
Route the USB D+ (RPB14/RCB10) and D- (RPB15/RCB11) lines as 90-ohm differential pairs with matched length (within 150 mil) and continuous ground reference. For TQFP-64 hand assembly or rework, ensure adequate clearance around the exposed die pad area; the TQFP-64 (10x10 mm) is preferred over QFN for low-volume production due to easier inspection. Keep JTAG/SWD traces (TCK/TMS/TDI/TDO/NTRST) away from high-frequency switching signals to avoid debug probe noise.
When using Peripheral Pin Select (PPS), the input pin mapping register (PPSxIL/PPSxIH/PPSxIO) and output pin mapping register (PPSxOL/PPSxOH) must be unlocked via the CFGCON.IOLOCK sequence before configuration, otherwise writes are silently ignored. The boot Flash region (12 KB) holds the bootloader and must not be erased by the application without reloading the bootloader first. For USB self-powered designs, the VBUS pin must see a valid 5V through a 10 kOhm pull-down to ensure proper disconnection detection.
Estimate: with continuous ground plane and 4-layer PCB stackup, the TQFP-64 (10x10 mm) thermal pad achieves approximately 35-45 C/W theta_JA without explicit thermal vias. For designs drawing ~150 mA continuous at 50 MHz, attach the thermal pad to a 1 sq inch copper pour on the top layer. Keep analog audio signals (I2S lines) short and away from SPI clocks (SCK) to avoid coupling into the DAC output.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; the PIC32MX270F512HT-50I/PT is rated Industrial (-40C to +85C), not Automotive. For AEC-Q100, consider the PIC32MX270F512HT-V/PT automotive-grade variant.
