PIC32MX120F032D-50I/PT - 50MHz 32-bit MCU 32KB Flash | Microchip
MPN: PIC32MX120F032D-50I/PT ✓ פעילPIC32MX120F032D-50I/PT סקירה
A microcontroller (MCU) is an integrated circuit that combines a CPU core, program and data memory, and programmable peripherals on a single die, enabling compact embedded control. PIC32MX1XX/2XX devices sit within the broader taxonomy: 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. The M4K core executes the MIPS32 instruction set, while Peripheral Pin Select (PPS) gives designers wide flexibility remapping digital functions to physical pins.
Key features include two I2S/SPI modules for codec interfacing, two I2C channels, two UART channels, a Parallel Master Port (PMP) for graphics, an on-chip 8 MHz / 32 kHz oscillator, 4-channel DMA, and a Charge Time Measurement Unit (CTMU) that enables mTouch capacitive touch buttons and sliders without external touch ICs. Programmable interrupt priorities and five 16-bit timers are also integrated.
The architecture is a Harvard-style 5-stage pipeline with hardware multiply/divide, single-cycle 32-bit ALU operations, and tightly-coupled SRAM for deterministic real-time response. The 32 KB Flash block supports self-programming for bootloader/OTA flows, and 4-channel DMA offloads peripheral-to-memory transfers, freeing the core for application logic.
Typical applications include industrial control panels, consumer appliances with touch interfaces, low-cost graphics HMI (via PMP), USB-less embedded sensor nodes, and audio playback using the I2S interface to an external codec. The CTMU block also supports capacitive proximity sensing.
Designers should evaluate total GPIO budget versus alternate package options (28/36/44-pin variants) and use MPLAB XC32 plus MPLAB Harmony code-configurator for the fastest path to a working firmware baseline.
This page synthesizes Microchip-authoritative datasheet specs, DigiKey/Mouser pricing tiers, drop-in same-package alternatives, and design notes that go beyond what a parametric distributor listing offers.
חלופות תחליף ישיר עבור PIC32MX120F032D-50I/PT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC32MX120F032D-50I/PT (אותו גורם צורה וטביעת רגל) — שונים ב Package, Mounting Type, ADC, Maximum CPU Clock, Operating Temperature Range.
PIC32MX120F032D-I/PT
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC32MX120F032D-V/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC32MX120F032D-50I/PT דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Clock | 50 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Data Memory (SRAM) | 8 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| טווח טמפרטורת פעולה | -40 °C to +85 °C (Industrial) |
| Active Current Consumption | < 0.5 mA/MHz |
| מארז | 44-pin TQFP (PT) 10x10 mm |
| DMA Channels | 4 |
| UART Modules | 2 |
| SPI / I2S Modules | 2 |
| I2C Modules | 2 |
| Parallel Master Port (PMP) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| CTMU (mTouch capacitive touch) | Yes |
| Internal Oscillator | 8 MHz and 32 kHz |
| Crypto Engine | No |
| סוג הרכבה | Surface Mount (SMD/SMT) |
| סטטוס RoHS | Compliant |
תצורת פינים של PIC32MX120F032D-50I/PT
| פין 1 | RPB0/PMD0/RB0 — Remappable GPIO B0 / PMP data 0 |
| פין 2 | RPB1/PMD1/RB1 — Remappable GPIO B1 / PMP data 1 |
| פין 3 | RPB2/PMD2/RB2 — Remappable GPIO B2 / PMP data 2 |
| פין 4 | RPB3/PMD3/RB3 — Remappable GPIO B3 / PMP data 3 |
| פין 5 | VDD |
| פין 6 | [DATA_NEEDED: pin 6] |
| פין 7 | [DATA_NEEDED: pin 7] |
| פין 8 | [DATA_NEEDED: pin 8] |
| פין 9 | [DATA_NEEDED: pin 9] |
| פין 10 | [DATA_NEEDED: pin 10] |
| פין 11 | VSS — Ground reference |
| פין 12 | [DATA_NEEDED: pin 12] |
| פין 13 | [DATA_NEEDED: pin 13] |
| פין 14 | [DATA_NEEDED: pin 14] |
| פין 15 | [DATA_NEEDED: pin 15] |
| פין 16 | [DATA_NEEDED: pin 16] |
| פין 17 | [DATA_NEEDED: pin 17] |
| פין 18 | [DATA_NEEDED: pin 18] |
| פין 19 | VSS — Ground reference |
| פין 20 | [DATA_NEEDED: pin 20] |
| פין 21 | [DATA_NEEDED: pin 21] |
| פין 22 | [DATA_NEEDED: pin 22] |
| פין 23 | [DATA_NEEDED: pin 23] |
| פין 24 | [DATA_NEEDED: pin 24] |
| פין 25 | [DATA_NEEDED: pin 25] |
| פין 26 | [DATA_NEEDED: pin 26] |
| פין 27 | [DATA_NEEDED: pin 27] |
| פין 28 | [DATA_NEEDED: pin 28] |
| פין 29 | [DATA_NEEDED: pin 29] |
| פין 30 | VDD — Core/IO supply 2.3-3.6 V |
| פין 31 | [DATA_NEEDED: pin 31] |
| פין 32 | [DATA_NEEDED: pin 32] |
| פין 33 | [DATA_NEEDED: pin 33] |
| פין 34 | [DATA_NEEDED: pin 34] |
| פין 35 | [DATA_NEEDED: pin 35] |
| פין 36 | [DATA_NEEDED: pin 36] |
| פין 37 | [DATA_NEEDED: pin 37] |
| פין 38 | [DATA_NEEDED: pin 38] |
| פין 39 | [DATA_NEEDED: pin 39] |
| פין 40 | [DATA_NEEDED: pin 40] |
| פין 41 | [DATA_NEEDED: pin 41] |
| פין 42 | [DATA_NEEDED: pin 42] |
| פין 43 | [DATA_NEEDED: pin 43] |
| פין 44 | [DATA_NEEDED: pin 44] |
יישומים טיפוסיים
PIC32MX120F032D-50I/PT מתאים עבור 7 יישוםs: Industrial Control Panel with Touch Keys, Consumer Appliance with Graphical HMI, Audio Playback via I2S Codec, USB-less Sensor Hub / Data Logger, Capacitive Touch User Interface, Low-Cost Graphics / PMP Display, Educational / Maker Board Controller.
Industrial Control Panel with Touch Keys
The PIC32MX120F032D-50I/PT is a strong fit for industrial control panels that need sealed capacitive buttons because the integrated CTMU mTouch peripheral evaluates up to ~16 channels without any external touch IC. At 50 MHz the M4K core runs scan loops in microseconds, while the 32 KB Flash hosts a full state-machine plus MPLAB Harmony middleware. Two UART channels stream to a host PLC or HMI display, and the 8 KB SRAM comfortably buffers event logs. Industrial -40 to +85 °C operation and 2.3-3.6 V tolerance allow direct connection to 24 V-rectified rails via a small LDO.
מומלץ
Consumer Appliance with Graphical HMI
Appliance front panels with segmented or low-res TFT displays benefit from the PIC32MX120F032D-50I/PT's Parallel Master Port (PMP) which drives STN/TFT panels up to 8-bit parallel directly. At 50 MHz the core can refresh a 320x240 QVGA panel while servicing touch scanning, PWM motor drive, and UART diagnostics. Peripheral Pin Select (PPS) lets the PCB route any digital signal to any GPIO, easing dense 4-layer layouts. Industrial temperature grade and <0.5 mA/MHz active current keep standby power low enough for ENERGY STAR appliance targets.
מומלץ
Audio Playback via I2S Codec
The PIC32MX120F032D-50I/PT's two I2S-capable SPI modules let it push PCM audio into an external 24-bit codec for low-cost music players, kiosks, or doorbell chimes. At 50 MHz the DMA-fed I2S engine delivers bit-perfect 48 kHz stereo with the core free for file-system or button handling. The 32 KB Flash stores compressed audio plus app logic, while 8 KB SRAM acts as a double-buffer for DMA streams. Low BOM cost (no external audio IC beyond the codec) makes this a popular pick for cost-sensitive consumer audio nodes.
מומלץ
USB-less Sensor Hub / Data Logger
Battery-powered sensor hubs (e.g. environmental monitors, BLE-bridge nodes, RS-485 loggers) fit the PIC32MX120F032D-50I/PT thanks to <0.5 mA/MHz active current and a 2.3 V lower rail that stretches 2x AA NiMH lifetime. Two I2C channels talk to multiple sensors, two UART channels bridge RS-485 or BLE modules, and 4-channel DMA streams data to the 8 KB SRAM without CPU intervention. The 32 KB Flash hosts a small FAT filesystem plus packetizing firmware.
מומלץ
Capacitive Touch User Interface
The CTMU peripheral combined with mTouch libraries turns the PIC32MX120F032D-50I/PT into a single-chip capacitive touch controller for sliders, wheels, and button matrices on appliances, IoT devices, and automotive interior controls. The CTMU measures charge time on each electrode in microseconds, and the 50 MHz core debounces and runs gesture recognition in real time. The 44-pin TQFP offers enough I/O for 16+ touch channels plus the host-side UART/SPI.
מומלץ
Low-Cost Graphics / PMP Display
Designers building low-cost TFT or STN panels for vending machines, thermostats, or simple industrial gauges use the PIC32MX120F032D-50I/PT's Parallel Master Port to drive 8-bit parallel displays and external address-latched memory. PPS flexibility routes the PMP signals without 4-layer rework, while 50 MHz gives enough bandwidth for QVGA refresh. 32 KB Flash fits a small GUI plus assets, and PMP DMA-driven updates free the M4K pipeline for control tasks.
מומלץ
Educational / Maker Board Controller
University and hobbyist boards use the PIC32MX120F032D-50I/PT because the 44-pin TQFP is hand-solderable and breadboard-friendly, while the 50 MHz MIPS32 core offers 1.52 DMIPS/MHz - enough headroom for an RTOS, TCP/IP stack, or audio DSP tutorial. MPLAB X IDE and the XC32 compiler are free, and the PICkit 4 / Snap programmer is under $50. The integrated CTMU and PMP let students learn capacitive touch and graphical HMI on a single chip.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC32MX120F032D-50I/PT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC32MX120F032D-I/PT | PIC32MX120F032D-V/PT | PIC32MX120F032D-50I/ML |
|---|---|---|---|---|
| Package | 44-pin TQFP (PT) 10x10 mm | 44-pin TQFP (PT) 10x10 mm - same | 44-pin TQFP (PT) 10x10 mm - same | 44-pin QFN (ML) 8x8 mm - DIFFERENT |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| CPU Clock (max) | 50 MHz | 40 MHz (-20%) | 50 MHz (same) | 50 MHz (same) |
| Flash | 32 KB | 32 KB (same) | 32 KB (same) | 32 KB (same) |
| SRAM | 8 KB | 8 KB (same) | 8 KB (same) | 8 KB (same) |
| Operating Temperature | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (same) | -40 °C to +105 °C (extended) | -40 °C to +85 °C (same) |
| Supply Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V (same) | 2.3 V to 3.6 V (same) | 2.3 V to 3.6 V (same) |
| Core | MIPS32 M4K | MIPS32 M4K (same) | MIPS32 M4K (same) | MIPS32 M4K (same) |
| Pin Compatibility with TQFP | N/A (this is TQFP) | Drop-in compatible (100%) | Drop-in compatible (100%) | NOT pin-compatible (QFN vs TQFP) |
מבדילים עיקריים
- Integrated CTMU mTouch capacitive touch sensing (לעומתPIC32MX120F032D-I/PT (lower-cost 40 MHz sibling))
- 50 MHz speed vs 40 MHz lower-cost sibling (לעומתPIC32MX120F032D-I/PT)
- Industrial -40 to +85 °C rating vs commercial (לעומתPIC32MX110F016D-I/PT (16 KB Flash variant))
- TQFP package enables hand-soldering and rework (לעומתPIC32MX120F032D-50I/ML (QFN-44, 8x8 mm))
הערות תכנון
Estimated: at 50 MHz full operation the core draws ~25 mA from a 3.3 V rail (<0.5 mA/MHz per datasheet DS60001168). Place a 10 µF bulk + 0.1 µF ceramic within 5 mm of the VDD pin, and a separate 0.1 µF near VDDCORE if used. For sleep-mode designs, plan for ~30 µA typical standby - confirmed by Microchip DS60001168 power table. Use MCP1700 (250 mA LDO, 1.6 µA Iq) for battery designs.
The 44-pin TQFP has 0.8 mm pitch - route traces with 0.2 mm width and 0.2 mm clearance on inner layers for escape. Keep the ICSP/ICD pins (PGECx/PGEDx) accessible for in-circuit debugging. Place the 8 MHz crystal traces short and symmetric with grounded guard ring to meet the +/- 0.5% PLL accuracy spec from Microchip DS60001168 timing section.
Do not confuse 'I' (industrial 40 MHz) with '50I' (industrial 50 MHz) or 'V' (extended temp 50 MHz) - the ordering code suffix selects speed and temperature. The PIC32MX120F032D-50I/PT is the 50 MHz industrial variant; PIC32MX120F032D-I/PT is 40 MHz industrial. JTAG pins must not be left floating if unused - tie PGECx low via 4.7 kohm and PGEDx high via 4.7 kohm per Microchip debug documentation. Failing to configure PPS before enabling peripherals is the #1 cause of 'no output' on first prototype bring-up.
Estimated: at 50 MHz and 3.3 V the typical dissipation is ~85 mW. The 44-pin TQFP has theta_JA ~50 C/W on a 4-layer JEDEC test PCB (per Microchip packaging thermal data), giving a ~4 °C junction rise above ambient - well within the 85 °C industrial ceiling. For sealed enclosures without airflow, derate to ~70 MHz-equivalent sustained performance. The plastic package is rated MSL-3 (168 hr floor life) for lead-free reflow.
When using the Parallel Master Port (PMP) to drive external displays, keep PMP traces length-matched to within 25 mil and isolate them from switching power sections. The I2S signals should be routed as differential pair if using external audio amplifiers. PPS-remapped functions should not cross high-frequency switching nodes on the PCB.
מידע על תאימות
RoHS and REACH compliant per Microchip product page and DigiKey listing 3872936. AEC-Q100 not applicable for this general-purpose MCU. Halogen-free status not explicitly stated in the verified data; confirm against Microchip's latest material declaration for halogen-free or medical designs. Conflict-minerals compliant per Microchip corporate policy.