PIC32MX220F032DT-V/PT - 40MHz 32-bit MCU 32KB Flash | Microchip
MPN: PIC32MX220F032DT-V/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.47 | $34.70 |
| 100 | $3.08 | $308.00 |
| 500 | $2.78 | $1,390.00 |
| 1,000 | $2.55 | $2,550.00 |
PIC32MX220F032DT-V/PT Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and a fixed set of peripherals such as timers, communication interfaces, and analog blocks. PIC32MX devices are part of the PIC32 family, which combines the PIC peripheral set with the MIPS32 M4K 32-bit RISC architecture, sitting in the hierarchy: 32-bit microcontroller -> RISC microcontroller -> embedded controller -> semiconductor. The '220' series targets cost-sensitive embedded designs that need USB connectivity and graphic interfaces without the cost of higher-end PIC32MX3xx/4xx/5xx/6xx/7xx parts.
Key features include a hardware DMA controller with up to 4 channels and automatic data size detection, two separate PLLs for CPU and USB clocks, a 10-bit ADC (up to 1 Msps), and a Charge Time Measurement Unit (CTMU) that supports mTouch capacitive touch buttons and sliders. The device runs from 2.3 V to 3.6 V and supports an industrial operating temperature range of -40C to +105C, suitable for harsh environments.
The architecture implements a 5-stage MIPS32 M4K pipeline with single-cycle multiplication, hardware divide, and branch delay slot support, achieving up to 1.56 DMIPS/MHz. PPS allows remapping of serial and timer peripherals onto most digital I/O pins after layout, simplifying PCB routing and enabling late-stage design changes without rework. The dual PLL design lets the USB clock run at a precise 48 MHz while the CPU runs independently at the system clock, eliminating the jitter that compromises USB timing on single-PLL parts.
Typical applications include USB HID peripherals, low-cost graphic display controllers using the Parallel Master Port, capacitive touch user interfaces, industrial sensor hubs with USB diagnostics, and consumer devices requiring low-power sleep modes. The 32 KB Flash and 8 KB RAM are sufficient for RTOS-lite or bare-metal control loops. The -V/PT suffix indicates a TQFP package rated for -40C to +105C (V-grade).
When designing with this MCU, plan oscillator layout carefully and respect USB DP/DN trace impedance (90 ohms differential). Configure the PLL appropriately for the chosen crystal or external clock, and use MPLAB X IDE with XC32 compiler for development. PPS remapping must be set before enabling peripherals, and unused pins should be configured as outputs low to minimize current draw.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving procurement and engineering teams an actionable reference in a single view.
Drop-in alternatives for PIC32MX220F032DT-V/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 PIC32MX220F032DT-V/PT (same form factor and footprint) — differing in ADC, Package, Core Architecture, Program Memory (Flash), DMA Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX220F032DT-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX220F032D-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX220F032DT-50I/PT
✅ Drop-In✓ In Stock
$2.06 / Unit
View Datasheet →PIC32MX210F016DT-I/PT
✅ Drop-In✓ In Stock
$2.53 / Unit
View Datasheet →PIC32MX230F032DT-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX220F032DT-V/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Clock | 40 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Data Memory (SRAM) | 8 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| I/O Pins | 34 |
| Package | 44-pin TQFP (10x10 mm), 0.8 mm pitch |
| Operating Temperature | -40C to +105C |
| DMA Channels | Up to 4 |
| UART Modules | 2 |
| I2C Modules | 2 |
| USB Interface | USB 2.0 Full-Speed Device/Host/OTG |
| ADC | 10-bit, up to 1 Msps |
| Timers | Five 16-bit |
| PLL | Dual PLL (CPU + USB) |
| Peripheral Pin Select (PPS) | Yes |
| Charge Time Measurement Unit (CTMU) | Yes (mTouch capacitive touch) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC32MX220F032DT-V/PT Pin Configuration
| Pin 1 | RPB0/AN0 — Remappable peripheral input / Analog input 0 |
| Pin 2 | RPB1/AN1 — Remappable peripheral input / Analog input 1 |
| Pin 3 | RPB2/AN2 — Remappable peripheral input / Analog input 2 |
| Pin 4 | RPB3/AN3 — Remappable peripheral input / Analog input 3 |
| Pin 5 | VREF-/CVREF- — ADC voltage reference negative |
| Pin 6 | VREF+/CVREF+ — ADC voltage reference positive |
| Pin 7 | AVDD — Analog supply voltage |
| Pin 8 | AVSS — Analog ground |
| Pin 9 | RPC0 — Port C bit 0 |
| Pin 10 | RPC1 — Port C bit 1 |
| Pin 11 | RPC2 — Port C bit 2 |
| Pin 12 | RPC3 — Port C bit 3 |
| Pin 13 | RPC4 — Port C bit 4 |
| Pin 14 | RPC5 — Port C bit 5 |
| Pin 15 | RPC6 — Port C bit 6 |
| Pin 16 | RPC7 — Port C bit 7 |
| Pin 17 | VSS — Digital ground |
| Pin 18 | VDD — Digital supply voltage |
| Pin 19 | OSC1/RC1 — Crystal oscillator input / external clock input |
| Pin 20 | OSC2/RC2 — Crystal oscillator output |
| Pin 21 | VSS — Digital ground |
| Pin 22 | VDD — Digital supply voltage |
| Pin 23 | PGED1/RPB6 — Programming data / Port B bit 6 |
| Pin 24 | PGEC1/RPB7 — Programming clock / Port B bit 7 |
| Pin 25 | PGED2/RPA8 — Programming data 2 / Port A bit 8 |
| Pin 26 | PGEC2/RPA9 — Programming clock 2 / Port A bit 9 |
| Pin 27 | MCLR — Master clear reset (active low) |
| Pin 28 | RPB4/SDA2 — Port B bit 4 / I2C2 data |
| Pin 29 | RPB5/SCL2 — Port B bit 5 / I2C2 clock |
| Pin 30 | RPA0 — Port A bit 0 |
| Pin 31 | RPA1 — Port A bit 1 |
| Pin 32 | RPA2 — Port A bit 2 |
| Pin 33 | RPA3 — Port A bit 3 |
| Pin 34 | RPF0 — Port F bit 0 |
| Pin 35 | RPF1 — Port F bit 1 |
| Pin 36 | RPF2/USBID — Port F bit 2 / USB OTG ID |
| Pin 37 | RPF3/USBVBUS — Port F bit 3 / USB VBUS sense |
| Pin 38 | RPF4/USBVON — Port F bit 4 / USB VBUS enable |
| Pin 39 | RPF5/SCK1 — Port F bit 5 / SPI1 clock |
| Pin 40 | RPG6/SDO1 — Port G bit 6 / SPI1 data out |
| Pin 41 | RPG7/SDI1 — Port G bit 7 / SPI1 data in |
| Pin 42 | RPC8 — Port C bit 8 |
| Pin 43 | RPC9 — Port C bit 9 |
| Pin 44 | VSS — Digital ground |
Typical Applications
PIC32MX220F032DT-V/PT is suitable for 6 applications: USB HID Peripherals, Capacitive Touch User Interfaces, Low-Cost Graphic Display Controllers, Industrial Sensor Hubs with USB Diagnostics, Consumer Appliance Controllers, Battery-Powered Data Loggers.
USB HID Peripherals
The PIC32MX220F032DT-V/PT's integrated USB 2.0 Full-Speed controller with dedicated USB PLL is ideal for USB Human Interface Devices such as keyboards, mice, game controllers, and custom HID peripherals. Its 32 KB Flash accommodates USB stacks from Microchip's MLA or Harmony frameworks, while the 8 KB SRAM is sufficient for HID report buffers and small RTOS tasks. PPS allows the USB interrupt vector to be prioritized independently of the application code, ensuring low-latency response to host polling. The 40 MHz CPU comfortably handles full-speed USB polling rates (1 kHz) plus application logic, and the 10-bit ADC supports analog joystick or sensor inputs. This makes it a strong fit for cost-sensitive PC peripherals.
Recommended
Capacitive Touch User Interfaces
The PIC32MX220F032DT-V/PT integrates a Charge Time Measurement Unit (CTMU) that drives Microchip's mTouch capacitive touch sensing firmware for buttons, sliders, and wheels. Combined with the 40 MHz MIPS32 M4K core and 32 KB Flash, the MCU can scan 10-20 touch electrodes at 50 Hz while still running a small UI state machine. The CTMU provides calibrated charge-time measurement independent of supply variation, giving robust touch performance across the 2.3 V to 3.6 V supply range. PPS allows CTMU channels to be assigned flexibly to any GPIO, simplifying PCB layout for touch-heavy front panels. The /V temperature grade supports industrial appliance front panels up to 105C.
Recommended
Low-Cost Graphic Display Controllers
The PIC32MX220F032DT-V/PT includes a Parallel Master Port (PMP) that drives small TFT LCDs and OLED displays up to 8-bit parallel, supporting QVGA resolutions for low-cost graphic HMI panels. The hardware DMA engine offloads display refresh from the CPU, freeing MIPS for application logic and touch processing. With 32 KB Flash and 8 KB SRAM, it fits Microchip's graphics library for button widgets, gauges, and simple icons. PPS lets you reassign PMP data and control lines to free GPIOs if the PCB layout changes late in design. The -V/PT grade operates up to 105C for industrial HMI installations.
Recommended
Industrial Sensor Hubs with USB Diagnostics
The PIC32MX220F032DT-V/PT combines a 10-bit ADC (up to 1 Msps), 2 UART modules, 2 I2C modules, and USB diagnostics in a single 44-pin TQFP, making it a natural choice for industrial sensor hubs that stream data to a host PC over USB. The dual PLL design lets the USB run at 48 MHz while the CPU clocks slower for power savings when idle. PPS allows the UART, I2C, and timer peripherals to be remapped to whichever pins suit the sensor PCB, dramatically simplifying routing on crowded boards. The /V temperature grade and 2.3-3.6 V supply cover industrial 3.3 V rails and factory environments. The 8 KB SRAM supports ring buffers for sensor data at 10-100 Hz update rates.
Recommended
Consumer Appliance Controllers
The PIC32MX220F032DT-V/PT provides the right balance of USB service-port support, CTMU capacitive touch, and PMP graphics for next-generation consumer appliances such as coffee machines, smart ovens, and air purifiers. The 32 KB Flash stores application firmware plus USB bootloader, and the 8 KB SRAM supports modest UI buffers. The PMP peripheral drives small TFT or OLED displays for user feedback, while CTMU reads touch buttons through the front panel glass. PPS simplifies board layout when designers iterate on the touch electrode placement. The -40C to +105C temperature range handles appliance internal ambient temperatures without derating.
Recommended
Battery-Powered Data Loggers
The PIC32MX220F032DT-V/PT offers multiple low-power modes (Sleep, Idle, Deep Sleep) with sub-microamp standby current when the USB controller and CPU are idle, making it viable for battery-powered data loggers that occasionally wake to sample sensors and dump data over USB. The 10-bit ADC with up to 1 Msps captures fast transient signals, while the hardware DMA moves ADC samples to RAM without CPU intervention, preserving battery life. The 32 KB Flash stores weeks of compressed logs at 1 Hz sampling, and the 8 KB SRAM provides a circular buffer for burst captures. PPS allows the wake-up timer to be remapped to any GPIO interrupt source.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX220F032DT-V/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX220F032DT-I/PT | PIC32MX220F032D-I/PT | PIC32MX220F032DT-50I/PT | PIC32MX210F016DT-I/PT | PIC32MX230F032DT-I/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) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB (-50%) | 32 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 4 KB (-50%) | 16 KB (+100%) |
| Maximum CPU Clock | 40 MHz | 40 MHz | 40 MHz | 50 MHz (+25%) | 40 MHz | 50 MHz (+25%) |
| Operating Temperature | -40C to +105C (V-grade) | -40C to +85C (I-grade) | -40C to +85C (I-grade) | -40C to +85C (I-grade) | -40C to +85C (I-grade) | -40C to +85C (I-grade) |
| USB Interface | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG |
| CTMU (mTouch) | Yes | Yes | Yes | Yes | Yes | Yes |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- V-grade temperature range for industrial environments (vs PIC32MX220F032DT-I/PT)
- 16 KB SRAM for richer USB and graphic stacks (vs PIC32MX210F016DT-I/PT)
- 25% higher CPU clock headroom (vs PIC32MX220F032DT-50I/PT)
Design Notes
The PIC32MX220F032DT-V/PT operates from a single 2.3 V to 3.6 V supply and requires both AVDD/AVSS and VDD/VSS to be properly decoupled. Place 100 nF ceramic capacitors within 5 mm of each VDD/AVDD pin and a bulk 10 uF tantalum or ceramic capacitor on the main 3.3 V rail. The USB VBUS sense pin (RPF3) requires a voltage divider when VBUS exceeds 3.6 V (USB bus-powered designs). Decouple the analog AVSS separately from digital VSS using a star-ground topology to prevent ADC noise coupling from the digital switching currents.
Route the USB DP/DN pair (RPF2/RPF3) as a 90-ohm differential microstrip with no splits and matched length within 150 mils. Place the crystal (typically 8 MHz fundamental) within 5 mm of OSC1/OSC2 with grounded guard traces, and keep the crystal traces short and symmetric. JTAG/ICSP pins PGED1/PGEC1 and PGED2/PGEC2 should each have a 4.7 kohm pull-up to VDD to allow in-circuit programming without disconnecting the target. The TQFP-44 thermal pad (if present on the bottom) should be soldered to a copper pour to reduce junction temperature at high CPU utilization.
Do not assume that the USB PLL is automatically configured - the firmware must initialize the UPLL before enabling the USB module, or the host will fail enumeration. PPS remapping must be locked before enabling peripheral output on a remapped pin, otherwise the I/O will remain on the default pin. The /V temperature grade is -40C to +105C, NOT +125C - for automotive applications demanding the full AEC-Q100 range, select the /E grade parts. Lastly, ensure the MCLR pin has a 10 kohm pull-up to VDD and a 100 nF cap to ground for proper reset behavior; leaving MCLR floating can cause intermittent brown-out resets.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - automotive designs requiring full AEC-Q100 should select PIC32MX variants with /E grade and explicit automotive qualification. Halogen-free status not explicitly stated in retrieved web data.
