PIC32MX270F256D-50I/ML - 32-bit MCU 50MHz 256KB Flash | Microchip
Référence : PIC32MX270F256D-50I/ML ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $5.92 | $5,92 |
| 10 | $5.45 | $54,50 |
| 100 | $4.78 | $478,00 |
| 500 | $4.21 | $2 105,00 |
| 1 000 | $3.74 | $3 740,00 |
PIC32MX270F256D-50I/ML Présentation
A PIC32MX microcontroller is a 32-bit MIPS-based embedded processor from Microchip's PIC32 family, sitting between 8-bit PIC16/PIC18 MCUs and 32-bit Cortex-M parts. PIC32MX parts run at higher clock speeds than PIC16/PIC18, offer more memory and peripherals than 8-bit PICs, and use the MIPS32 instruction set instead of ARM Cortex-M. The MX1XX/2XX sub-family is positioned for cost-sensitive USB, audio, and graphics applications.
Key features include 0.5 mA/MHz typical active current, 10-bit 1 Msps ADC, mTouch capacitive touch support, 1 ns resolution capture timer, and on-chip 1.5 KB USB RAM. The QFN-44 (ML) package provides a compact 8x8 mm footprint with thermal pad for improved dissipation. PPS allows remapping of digital peripherals to most I/O pins, simplifying PCB layout and reducing pin conflicts in mixed-function designs.
The architecture combines a 5-stage MIPS32 M4K pipeline with Harvard bus structure, prefetch cache, and tightly-coupled SRAM, delivering deterministic interrupt response needed for USB, audio I2S, and PMP graphic streaming. The integrated USB 2.0 full-speed PHY eliminates external transceivers for HID, CDC, and audio class devices.
Typical applications include Bluetooth audio docks and headsets (PIC32MX Bluetooth Audio Dev Kit), USB audio devices, HMI panels with PMP-driven LCDs, capacitive touch user interfaces, and industrial control with USB diagnostics. The 256 KB Flash accommodates full USB stacks plus application logic, while 64 KB RAM supports double-buffered audio and graphics framebuffers.
When designing with this part, place the decoupling network within 3 mm of the VDD pins, expose the QFN thermal pad with a 4x4 thermal via array to an inner ground plane, and use the PPS registry to route I2S, SPI, and UART signals around the PCB to ease routing on dense boards.
This page synthesizes distributor pricing, drop-in PIC32MX alternatives, and practical layout/design notes not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour PIC32MX270F256D-50I/ML — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC32MX270F256D-50I/ML (même facteur de forme et même empreinte) — différant par Package, ADC, Operating Temperature, Operating Temperature Range, Parallel Master Port (PMP).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC32MX270F256DT-50I/ML
✅ Remplacement direct✓ En stock
$4.61 / unité
Voir la fiche technique →PIC32MX270F256D-50I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX230F256D-50I/ML
✅ Remplacement direct✓ En stock
$3.96 / unité
Voir la fiche technique →PIC32MX270F256D-I/ML
✅ Remplacement direct✓ En stock
$4.18 / unité
Voir la fiche technique →PIC32MX250F256H-50I/MR
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$3.05 / unité
Voir la fiche technique →PIC32MX270F256D-50I/ML Valeurs maximales et caractéristiques électriques
| Core Architecture | MIPS32 M4K |
| Maximum CPU Frequency | 50 MHz / 83 DMIPS |
| Program Flash Memory | 256 KB (256K x 8) |
| SRAM | 64 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| ADC | 10-bit, up to 1 Msps |
| USB | USB 2.0 full-speed device/host/OTG |
| I2S/SPI Modules | 2 |
| Peripheral Pin Select (PPS) | Yes |
| Parallel Master Port (PMP) | Yes |
| mTouch Capacitive Touch | Yes |
| Capture Module Resolution | 1 ns |
| Active Current (typical) | 0.5 mA/MHz |
| Température de fonctionnement | -40C to +85C (industrial) |
| Boîtier | 44-pin QFN (8x8 mm) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| Speed Grade | -50I (50 MHz, Industrial) |
Guide de configuration des broches du PIC32MX270F256D-50I/ML 44-pin qfn (8x8 mm)
Configuration des broches du PIC32MX270F256D-50I/ML (boîtier 44-pin qfn (8x8 mm)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour PIC32MX270F256D-50I/ML.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
PIC32MX270F256D-50I/ML convient pour 6 applications: Bluetooth Audio Docks and Headsets, USB Audio Class Devices, HMI Panels with PMP-Driven LCDs, Capacitive Touch User Interfaces, Industrial Control with USB Diagnostics, IoT Edge Sensor Hubs.
Bluetooth Audio Docks and Headsets
The PIC32MX270F256D-50I/ML is the supported MCU on Microchip's Bluetooth Audio Development Kit, with two I2S modules for direct CODEC connection and USB 2.0 full-speed OTG for wired audio class. The 50 MHz MIPS32 M4K core handles SBC/AAC decode and Bluetooth stack simultaneously, while 64 KB SRAM double-buffers audio samples. The on-chip USB PHY eliminates external transceiver cost.
Recommandé
USB Audio Class Devices
Integrated USB 2.0 full-speed OTG with on-chip PHY and 1.5 KB dedicated USB RAM make the PIC32MX270F256D-50I/ML ideal for USB speakers, USB headsets, and USB microphones. The 50 MHz core runs the USB stack and audio class driver while I2S feeds the external DAC. PPS allows flexible pinout for compact enclosures with limited I/O.
Recommandé
HMI Panels with PMP-Driven LCDs
The Parallel Master Port (PMP) on the PIC32MX270F256D-50I/ML streams data directly to parallel-interface TFT and OLED panels up to 8-bit bus width, eliminating external display controllers. The 50 MHz MIPS32 M4K core refreshes small QVGA panels at 30 fps from internal Flash, while USB enables firmware updates. 64 KB RAM accommodates 8-bit color framebuffers for 320x240 panels.
Recommandé
Capacitive Touch User Interfaces
The PIC32MX270F256D-50I/ML supports Microchip's mTouch library with up to 16 capacitive touch channels via the on-chip 10-bit ADC and hardware CVD (Charge-Voltage Discharge). This is ideal for appliances, industrial controls, and consumer products requiring sealed touch panels with sliders and buttons. The 256 KB Flash accommodates the full mTouch plus UI library.
Recommandé
Industrial Control with USB Diagnostics
Industrial controllers use the PIC32MX270F256D-50I/ML's USB 2.0 full-speed for diagnostics, firmware update, and configuration without external PHYs. The -40C to +85C industrial operating range, PPS for flexible routing of UART/SPI/I2C to industrial peripherals, and 5-stage pipeline deterministic interrupt response suit PLC, motor drive, and process control applications.
Recommandé
IoT Edge Sensor Hubs
The PIC32MX270F256D-50I/ML aggregates sensors via I2S/SPI/UART and reports over USB or serial, with 256 KB Flash for protocol stacks and 64 KB SRAM for sensor data buffers. The 50 MHz MIPS core runs lightweight RTOS (FreeRTOS port, Harmony), and the 0.5 mA/MHz active current consumption supports battery-backed operation in remote sensor hubs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC32MX270F256D-50I/ML — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC32MX270F256DT-50I/ML | PIC32MX270F256D-50I/PT | PIC32MX230F256D-50I/ML | PIC32MX270F256D-I/ML | PIC32MX250F256H-50I/MR |
|---|---|---|---|---|---|---|
| Package | 44-pin QFN (8x8 mm) | 44-pin QFN (8x8 mm) - same | 44-pin TQFP (10x10 mm) - different | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same | 64-pin QFN (9x9 mm) - different |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Maximum CPU Frequency | 50 MHz / 83 DMIPS | 50 MHz / 83 DMIPS | 50 MHz / 83 DMIPS | 50 MHz / 83 DMIPS | 40 MHz / 66 DMIPS (-20%) | 50 MHz / 83 DMIPS |
| Program Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| USB 2.0 Full-Speed | Yes (device/host/OTG) | Yes | Yes | No | Yes | Yes |
| Parallel Master Port (PMP) | Yes | Yes | Yes | No | Yes | Yes |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Principaux différenciateurs
- Integrated USB 2.0 full-speed OTG with on-chip PHY (vs PIC32MX230F256D-50I/ML)
- Parallel Master Port (PMP) for direct LCD drive (vs PIC32MX230F256D-50I/ML)
- Higher 50 MHz CPU speed vs 40 MHz alternative (vs PIC32MX270F256D-I/ML)
- Compact QFN-44 (8x8 mm) for space-constrained designs (vs PIC32MX270F256D-50I/PT)
Notes de conception
Expose the QFN-44 thermal pad with a 4x4 via array (0.3 mm drill, 0.5 mm pitch) to an internal ground plane for low thermal resistance. Place the 0.1 uF + 10 uF VDD decoupling network within 3 mm of the VDD pins; USB VUSB requires a 0.1 uF + 4.7 uF network placed within 2 mm to meet USB 2.0 full-speed impedance. The 44-pin QFN (8x8 mm) requires careful escape routing - place at least two vias in the central pad region to keep power plane continuous.
At 50 MHz active current is approximately 0.5 mA/MHz typical, or 25 mA for the core. Plus I/O and USB load, total current can reach 40-60 mA. The QFN-44 thermal pad has theta_JA around 28-32 C/W on a 4-layer JEDEC test board. Estimated: at 60 mA total and 3.3 V, junction temperature rise above ambient is approximately (0.06 A * 3.3 V * 30 C/W) = 5.9 C, well within limits. Add 1 square inch of copper pour if running at extended temperature or sealed enclosures.
Do not omit the 1.5 kohm pull-up on D+ or D- for USB device mode - USB enumeration will fail. Configure PPS before enabling peripherals, otherwise the I/O remains in default high-impedance and peripherals will not function. The 'T' suffix (PIC32MX270F256DT-50I/ML) is packaging only, not a different die; firmware is identical. JTAG and Trace pins are multiplexed on this package - if you need Trace, plan for that during PCB layout since trace pins are shared with I/O.
Informations de conformité
RoHS compliant and REACH compliant per Microchip product page and Abacus Technologies listing. Not AEC-Q100 qualified - choose a PIC32MX automotive-grade variant for automotive applications.