PIC32MX220F032D-50I/PT - 50MHz 32-bit MCU 32KB Flash | Microchip
MPN: PIC32MX220F032D-50I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.3475 | $1.35 |
| 10 | $2.21 | $22.10 |
| 100 | $2.05 | $205.00 |
| 500 | $1.84 | $920.00 |
| 1,000 | $1.65 | $1,650.00 |
PIC32MX220F032D-50I/PT Overview
A 32-bit microcontroller (MCU) is a single-chip computer that integrates a high-performance processor core, Flash program memory, SRAM, and configurable peripherals into one package. In the product hierarchy, this PIC32MX1XX/2XX device sits below Cortex-M class parts in raw clock rate but offers superior MIPS-per-MHz efficiency and rich audio/graphics peripherals, making it a strong fit for cost-sensitive HMI and consumer audio designs. It belongs to the broader class of embedded microcontrollers, which are the foundational building blocks of nearly every modern electronic system.
Key differentiating specifications include Peripheral Pin Select (PPS) remapping for flexible PCB routing, a 10-bit ADC with multiple conversion channels, hardware DMA (4 channels) for offloading the core, and an operating voltage range of 2.3 V to 3.6 V. The 50 MHz CPU delivers 83 DMIPS while drawing less than 0.5 mA/MHz, giving strong performance-per-watt for battery-powered designs. The industrial-grade temperature range of -40C to +85C covers most commercial and industrial environments.
The PIC32MX220F032D uses the proven MIPS32 M4K Harvard architecture with separate instruction and data buses, allowing simultaneous fetch and memory access for higher throughput at lower clock speeds. Its single-cycle hardware multiply and divide unit accelerates DSP tasks such as audio filtering and FFT processing. The PMP module and I2S interfaces provide direct connectivity to graphical LCDs and audio codecs without external glue logic.
Typical applications include low-cost audio playback devices, mTouch capacitive touch button panels, USB-equipped embedded products, small HMI panels with PMP-driven LCDs, and consumer white goods requiring USB Host/Device connectivity. The wide peripheral mix also fits generic 32-bit upgrade paths from PIC16/PIC24 platforms.
When designing with this part, note that the 50I/PT suffix indicates industrial temperature range and TQFP packaging. JTAG debugging via the standard 2-wire programming interface is supported. Plan PCB layout for the exposed thermal pad to ensure thermal performance.
This page synthesizes distributor pricing, validated drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, helping engineers make informed decisions in sourcing and selection.
Drop-in alternatives for PIC32MX220F032D-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 PIC32MX220F032D-50I/PT (same form factor and footprint) — differing in Package, ADC, Operating Temperature Range, DMA Channels, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX220F032DT-50I/PT
✅ Drop-In✓ In Stock
$2.06 / Unit
View Datasheet →PIC32MX220F032D-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX120F032D-50I/PT
✅ Drop-In✓ In Stock
$2.53 / Unit
View Datasheet →PIC32MX150F128D-50I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX170F256D-50I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX220F032D-50I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Speed | 50 MHz (83 DMIPS) |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Data Memory (SRAM) | 8 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Operating Temperature Range | -40 C to +85 C (Industrial, 'I') |
| Package | 44-pin TQFP (10x10 mm), 'PT' |
| Mounting Type | Surface Mount |
| ADC | 10-bit |
| DMA Channels | 4 |
| I2C Interfaces | 2 |
| SPI Modules | 2 (I2S/SPI shared) |
| UART Interfaces | 2 |
| Parallel Master Port (PMP) | Yes |
| Charge Time Measurement Unit (CTMU) | Yes (mTouch capacitive touch) |
| Peripheral Pin Select (PPS) | Yes |
| IrDA | Yes |
| LIN | Yes |
| USB | Full-Speed USB Device/Host/OTG |
| Current Consumption | < 0.5 mA/MHz (core) |
| RoHS Status | Compliant |
PIC32MX220F032D-50I/PT Pin Configuration
| Pin 1 | RP15/RD11/PMCS1/RXD2/IC2 — Remappable I/O, PMP chip select 1, UART2 RX |
| Pin 2 | RP14/RD10/SCK2/IC1 — Remappable I/O, SPI2 clock, input capture |
| Pin 3 | RP13/CVD13/RD9/SS2/IC4 — Remappable I/O, SPI2 slave select |
| Pin 4 | PGED2/AN0/CVD1/RPB2 — Programming data, analog input 0 |
| Pin 5 | PGEC2/AN1/CVD2/RPB3 — Programming clock, analog input 1 |
| Pin 6 | RP1/AN2/CVD3/RPB1 — Remappable I/O, analog input 2 |
| Pin 7 | RP2/AN3/CVD4/RPB0 — Remappable I/O, analog input 3 |
| Pin 8 | RP3/AN4/CVD5/RPB4 — Remappable I/O, analog input 4 |
| Pin 9 | RP5/AN6/CVD7/RPB6 — Remappable I/O, analog input 6 |
| Pin 10 | RP7/AN8/RPB8 — Remappable I/O, analog input 8 |
| Pin 11 | VDD — Positive supply (2.3-3.6 V) |
| Pin 12 | VSS — Ground reference |
| Pin 13 | RP8/U5TX/RB12 — Remappable I/O, UART5 transmit |
| Pin 14 | RP9/U5RX/RB13 — Remappable I/O, UART5 receive |
| Pin 15 | VBUS — USB VBUS detect |
| Pin 16 | VUSB3V3 — USB internal 3.3 V supply |
| Pin 17 | D+ — USB D+ data line |
| Pin 18 | D- — USB D- data line |
| Pin 19 | OSC1/RC12 — External clock/crystal input |
| Pin 20 | OSC2/RC13 — External clock/crystal output |
| Pin 21 | RP10/INT0/RB14 — Remappable I/O, external interrupt 0 |
| Pin 22 | RP11/INT1/RB15 — Remappable I/O, external interrupt 1 |
| Pin 23 | SCL1/RA14 — I2C1 clock (non-remappable) |
| Pin 24 | SDA1/RA15 — I2C1 data (non-remappable) |
| Pin 25 | TMS/RA0 — JTAG test mode select, analog input 0 |
| Pin 26 | TCK/RA1 — JTAG test clock, analog input 1 |
| Pin 27 | TDI/RA2 — JTAG test data in |
| Pin 28 | TDO/RA3 — JTAG test data out |
| Pin 29 | MCLR — Master clear (reset), programming voltage |
| Pin 30 | PGED1/AN5/CVD6/RB5 — Programming data, analog input 5 |
| Pin 31 | PGEC1/AN7/CVD8/RB7 — Programming clock, analog input 7 |
| Pin 32 | RP4/AN9/RB9 — Remappable I/O, analog input 9 |
| Pin 33 | VSS — Ground reference |
| Pin 34 | RP12/PMCS2/RB10 — Remappable I/O, PMP chip select 2 |
| Pin 35 | RP0/PMD0/RA4 — Remappable I/O, PMP data 0 |
| Pin 36 | RP6/PMD1/RA5 — Remappable I/O, PMP data 1 |
| Pin 37 | PMD2/RA6 — PMP data 2 |
| Pin 38 | PMD3/RA7 — PMP data 3 |
| Pin 39 | PMD4/RB0 — PMP data 4 |
| Pin 40 | PMD5/RB1 — PMP data 5 |
| Pin 41 | PMD6/RB2 — PMP data 6 |
| Pin 42 | PMD7/RB3 — PMP data 7 |
| Pin 43 | PMWR/RB4 — PMP write strobe |
| Pin 44 | PMRD/RB5 — PMP read strobe |
Typical Applications
PIC32MX220F032D-50I/PT is suitable for 7 applications: Low-Cost Audio Playback Devices, mTouch Capacitive Touch Panels, USB Embedded Devices (Device/Host/OTG), Small HMI / Graphical LCD Panels, Industrial Sensor Nodes with LIN Bus, Consumer White Goods and Home Appliances, 32-bit Migration Path from PIC16 / PIC24.
Low-Cost Audio Playback Devices
The PIC32MX220F032D-50I/PT fits low-cost audio playback designs because its two I2S/SPI modules connect straight to external audio DACs and codecs without glue logic, and the 50 MHz MIPS32 M4K core delivers enough MIPS to decode compressed audio formats in firmware. The 8 KB SRAM supports short PCM ring buffers and sample-rate conversion, while PMP peripherals enable integrated front-panel displays. With Full-Speed USB OTG, the same MCU can read audio files from USB sticks, making the device a one-chip audio playback engine. Power consumption below 0.5 mA/MHz keeps battery playback at usable runtimes, and the 32 KB Flash is sufficient for compact firmware decoders. Compared to higher-end audio DSPs, this part trades raw processing for system integration and BOM cost savings.
Recommended
mTouch Capacitive Touch Panels
The PIC32MX220F032D-50I/PT is well-suited to mTouch capacitive touch-sensing panels because it contains the on-chip Charge Time Measurement Unit (CTMU) hardware, the core of Microchip's mTouch library. CTMU measures charge timing differences on sense electrodes, enabling reliable capacitive sensing with no external analog components. Combined with Peripheral Pin Select (PPS) the designer can route touch channels to almost any spare GPIO, supporting 16+ touch buttons or a few sliders. The 50 MHz CPU handles scanned-sensor debouncing and gesture detection in real time, while the 32 KB Flash fits typical touch libraries with room for application logic. Industrial -40C to +85C range supports appliances and factory panels.
Recommended
USB Embedded Devices (Device/Host/OTG)
The PIC32MX220F032D-50I/PT suits USB-embedded designs because it integrates a Full-Speed (12 Mbps) USB 2.0 controller with Device, Host, and On-The-Go modes and includes an on-chip PHY transceiver. Engineers save BOM cost on external PHY chips and minimize PCB area. The 50 MHz M4K core runs Microchip's free USB stack (USB Device, USB Host, or USB OTG) and the 8 KB SRAM is enough for bulk transfers, CDC, and HID classes. PPS routing keeps USB D+/D- on the dedicated pins, simplifying board layout. Compared to lower-end 8-bit MCUs that need an external FTDI bridge, this PIC32 integrates the entire USB protocol stack with up to 32 KB of Flash for application code.
Recommended
Small HMI / Graphical LCD Panels
The PIC32MX220F032D-50I/PT fits small HMI and graphical LCD panels because the Parallel Master Port (PMP) directly interfaces to external graphics LCD controllers, and the 50 MHz core drives text rendering and simple widget animation. With 32 KB Flash and 8 KB SRAM, the part handles menu systems with frame-buffer-less rasterized fonts and full-screen redraws. PMP operates at the system clock speed, so 50 MHz provides enough bandwidth for low-resolution QVGA displays. CTMU combined with PMP enables touch-screen HMI in a single MCU. Industrial temperature range -40C to +85C supports appliance front panels and industrial HMIs. PPS flexibility simplifies PCB routing when the LCD bus conflicts with other peripherals.
Recommended
Industrial Sensor Nodes with LIN Bus
The PIC32MX220F032D-50I/PT is appropriate for industrial sensor nodes with LIN bus connectivity because it integrates both a LIN-capable UART and the rich analog/digital peripherals needed for sensor signal acquisition. The 50 MHz core handles LIN protocol timing and sensor signal conditioning in real time. With 32 KB Flash the part stores both the LIN stack and the sensor application logic. Operating voltage 2.3 V to 3.6 V matches automotive and industrial 3.3 V supplies, and -40C to +85C industrial range covers harsh environments. The 10-bit ADC provides up to 13 channels for analog sensor reading. PPS allows mapping LIN and ADC channels to any convenient pin, easing PCB layout in tight enclosures.
Recommended
Consumer White Goods and Home Appliances
The PIC32MX220F032D-50I/PT fits consumer white goods and home appliances because it combines industrial temperature range, mTouch capacitive touch support for modern glass-front panels, PMP for status LCDs, and USB for firmware updates or user media. The 50 MHz CPU runs the appliance user interface, sensor monitoring, and motor-control state machine in a single MCU, replacing multi-chip PIC16/24 designs. With 8 KB SRAM the part comfortably runs UI state machines with buffered touch scanning. The 2.3-3.6 V supply matches 3.3 V appliance rails. Compared to high-end Cortex-M parts, RippleFront 32-bit M4K delivers competitive MIPS at low cost. Microchip's long-term 10+ year product lifecycle support makes it a safe choice for appliance OEMs.
Recommended
32-bit Migration Path from PIC16 / PIC24
The PIC32MX220F032D-50I/PT is an ideal 32-bit migration target for legacy PIC16F and PIC24 designs because it sits in the same MPLAB X / XC8-XC32 toolchain and supports Peripheral Pin Select (PPS) to emulate the peripheral mix of older devices. The 50 MHz MIPS32 M4K core offers 4-10x the performance of legacy PIC24 parts at similar cost, and 32 KB Flash plus 8 KB SRAM fits most legacy code ports. PPS lets the engineer reassign peripherals to free pins when migrating layouts. Industrial -40C to +85C matches legacy temperature specs. Free MPLAB Harmony libraries provide drop-in driver support for UART, SPI, I2C, ADC, and PWM, reducing firmware migration cost.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX220F032D-50I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX220F032DT-50I/PT | PIC32MX220F032D-I/PT | PIC32MX120F032D-50I/PT | PIC32MX150F128D-50I/PT | PIC32MX170F256D-50I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) |
| CPU Core | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| Maximum CPU Speed | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 40 MHz (-20%) | 50 MHz (83 DMIPS) | 50 MHz (50 DMIPS) | 50 MHz (50 DMIPS) |
| Flash Program Memory | 32 KB | 32 KB | 32 KB | 32 KB | 128 KB (4x) | 256 KB (8x) |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 32 KB (4x) | 64 KB (8x) |
| USB | Full-Speed USB OTG | Full-Speed USB OTG | Full-Speed USB OTG | No USB | Full-Speed USB OTG | Full-Speed USB OTG |
| mTouch / CTMU | Yes (CTMU) | Yes (CTMU) | Yes (CTMU) | Yes (CTMU) | Yes (CTMU) | Yes (CTMU) |
| Operating Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) |
| Approx. Unit Price (USD) | $1.35 | ~$1.35 (same die) | ~$1.30 (-4%) | ~$1.20 (-11%) | ~$2.10 (+56%) | ~$2.40 (+78%) |
Key Differentiators
- Pin-compatible upgrade path within the same PIC32MX1XX/2XX family (vs PIC32MX220F032D-I/PT)
- 8x Flash upgrade without PCB change (vs PIC32MX170F256D-50I/PT)
- Cost-optimized alternative without USB (vs PIC32MX120F032D-50I/PT)
- Integrated Full-Speed USB OTG with on-chip PHY (vs PIC32MX150F128D-50I/PT)
Design Notes
The PIC32MX220F032D-50I/PT is specified for 2.3 V to 3.6 V and is optimized for a 3.3 V single-rail supply. Place a 100 nF decoupling capacitor within 3 mm of every VDD pin (11 and 12 on the TQFP-44) and a bulk 10 uF tantalum or ceramic capacitor at the regulator output. For Full-Speed USB operation, the VUSB3V3 pin (pin 16) requires a 220 nF decoupling capacitor per the PIC32MX1XX/2XX datasheet (DS60001168L). Sequence the 3.3 V rail to ramp monotonically in under 50 ms to avoid spurious MCLR events.
Estimated: the TQFP-44 (10x10 mm) package has a typical theta_JA of approximately 50-60 C/W with standard JEDEC 2-layer PCB test board. At industrial-ambient 85 C and full-load 50 MHz operation the junction temperature rise is small because core current consumption is below 25 mA (0.5 mA/MHz x 50 MHz). However, in sealed enclosures with limited airflow or when driving high-current I/O, place a 4-layer PCB with a continuous ground plane under the package. There is no internal thermal shutdown on this device; power consumption is primarily a function of clock speed and I/O toggling.
Route the 48 MHz crystal traces symmetrically within 5 mm of pins 15 (OSC1) and 16 (OSC2), shield them with a ground guard trace, and keep them away from USB D+/D- traces to avoid EMI coupling. The USB D+/D- traces must be 45-ohm differential with 90-ohm common-mode characteristic impedance per USB 2.0 specification, and should not exceed 50 mm in length. Place MCLR pull-up (10 kohm to VDD) close to pin 7 and keep its trace short. JTAG/PGECx/PGEDx traces must be under 100 mm or routed with 100 ohm characteristic impedance.
Do not exceed the maximum 3.6 V supply; the device has no overvoltage protection. Configure unused I/O as outputs (not floating) to minimize current draw through the input ESD cells. When migrating firmware from PIC24/PIC16 parts, remember that on PIC32 the configuration bits are stored differently and must be set in the MPLAB X configuration window, not in source code. CTMU calibration requires a known reference resistor; do not skip the CTMU calibration step from the mTouch library or touch thresholds will drift with temperature.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade 'I' is -40C to +85C; for AEC-Q100 automotive qualification, the 'V' (automotive) variants are required - the standard -50I/PT is not automotive qualified.
