PIC32MX220F032C-50I/TL - 32-bit MCU 50MHz 32KB Flash | Microchip
MPN: PIC32MX220F032C-50I/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.21 | $3.21 |
| 10 | $2.84 | $28.40 |
| 100 | $2.39 | $239.00 |
| 500 | $2.1 | $1,050.00 |
| 1,000 | $1.85 | $1,850.00 |
PIC32MX220F032C-50I/TL Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a rich set of peripherals including timers, communication controllers, and analog blocks. In the embedded system taxonomy, the PIC32MX220F032C belongs to the 32-bit MCU class (hypernyms: microcontroller -> embedded processor -> semiconductor), bridging the gap between 8/16-bit legacy MCUs and high-performance application SoCs. Within Microchip's PIC32 family, it sits in the cost-optimized PIC32MX1XX/2XX 28/36/44-pin subfamily aimed at USB, audio, and graphics peripherals.
Key features of this device include a 10-bit 1 Msps Analog-to-Digital Converter with up to 12 input channels, two I2S/SPI modules for codec and serial communications, a Peripheral Pin Select (PPS) function that lets users remap peripheral I/O to most digital pins, a Parallel Master Port (PMP) for graphics interfaces, and USB 2.0 full-speed OTG/device support. A charge time measurement unit (CTMU) supports capacitive touch and general-purpose current source/sink applications. Hardware DMA, two UART/I2C modules, and separate PLLs for CPU and USB clocks round out the integration.
Architecturally, the MIPS32 M4K core fetches instructions from internal Flash through a prefetch cache, while the tightly-coupled SRAM feeds data to the load/store unit. The two PLLs independently optimize CPU and USB clocks, and the PPS engine gives designers PCB layout flexibility. Compared to PIC16/PIC24 parts, the M4K core delivers ~10x performance at similar MHz, allowing C-based firmware (MPLAB XC32) to be used instead of assembly.
Typical applications include USB peripherals, audio playback and processing, low-cost graphics user interfaces, capacitive touch user input, industrial control, and consumer electronics. The exposed thermal pad aids heat dissipation in continuous-active workloads. Designers should use decoupling capacitors close to each VDD/VSS pair and follow Microchip's VTLA PCB layout guidelines for best USB signal integrity. This page combines distributor data, drop-in alternatives, and design notes that are not collated on the manufacturer datasheet alone.
Drop-in alternatives for PIC32MX220F032C-50I/TL — 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 PIC32MX220F032C-50I/TL (same form factor and footprint) — differing in ADC, Package, Program Memory (Flash), DMA Channels, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX220F032C-I/TL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX120F032C-50I/TL
✅ Drop-In✓ In Stock
$2.02 / Unit
View Datasheet →PIC32MX210F016DT-I/TL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.1 / Unit
View Datasheet →PIC32MX210F016D-I/TL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.98 / Unit
View Datasheet →PIC32MX150F128C-50I/TL
✅ Drop-In✓ In Stock
$2.5 / Unit
View Datasheet →PIC32MX170F256B-50I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.55 / Unit
View Datasheet →PIC32MX220F032C-50I/TL Maximum Ratings & Electrical Characteristics
| Core | MIPS32 M4K, 32-bit RISC |
| Maximum CPU Frequency | 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 |
| Typical Core Supply | 3.3 V |
| Active Current | < 0.5 mA/MHz |
| ADC | 10-bit, 1 Msps, up to 12 channels |
| USB | USB 2.0 Full-Speed OTG/Device |
| Communication Peripherals | 2x UART, 2x SPI, 2x I2C, 2x I2S |
| Other Peripherals | PMP, PPS, CTMU, HW DMA, 5x Timer |
| I/O Pins | Up to 25 general-purpose I/O |
| Operating Temperature Range | -40 C to +85 C (I grade) |
| Package | 36-pin VTLA (5x5 mm) with exposed pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Programming/Debug | ICSP via PGECx/PGEDx pairs |
PIC32MX220F032C-50I/TL Pin Configuration
| Pin 1 | RPB0 — Remappable I/O / PGED1 (programming data) |
| Pin 2 | RPB1 — Remappable I/O / PGEC1 (programming clock) |
| Pin 3 | RPB2 — Remappable I/O |
| Pin 4 | RPB3 — Remappable I/O |
| Pin 5 | VSS — Ground |
| Pin 6 | RPB4 — Remappable I/O |
| Pin 7 | RPB5 — Remappable I/O |
| Pin 8 | RPC0 — Remappable I/O |
| Pin 9 | RPC1 — Remappable I/O |
| Pin 10 | RPC2 — Remappable I/O |
| Pin 11 | VSS — Ground |
| Pin 12 | RPC3 — Remappable I/O |
| Pin 13 | RPC4 — Remappable I/O / D+ (USB) |
| Pin 14 | RPC5 — Remappable I/O / D- (USB) |
| Pin 15 | VDD — Core supply 2.3 V to 3.6 V |
| Pin 16 | RPC6 — Remappable I/O |
| Pin 17 | RPC7 — Remappable I/O |
| Pin 18 | RPC8 — Remappable I/O |
| Pin 19 | RPC9 — Remappable I/O |
| Pin 20 | VSS — Ground |
| Pin 21 | AVDD — Analog supply |
| Pin 22 | AVSS — Analog ground |
| Pin 23 | AN0 — ADC input / VREF+ |
| Pin 24 | AN1 — ADC input / VREF- |
| Pin 25 | AN2 — ADC input |
| Pin 26 | AN3 — ADC input |
| Pin 27 | AN4 — ADC input |
| Pin 28 | AN5 — ADC input |
| Pin 29 | AN6 — ADC input |
| Pin 30 | AN7 — ADC input |
| Pin 31 | AN8 — ADC input |
| Pin 32 | AN9 — ADC input |
| Pin 33 | AN10 — ADC input |
| Pin 34 | AN11 — ADC input |
| Pin 35 | VSS — Ground |
| Pin 36 | VDD — Core supply 2.3 V to 3.6 V |
| Pin PAD | EP — Exposed thermal pad, connect to VSS |
Typical Applications
PIC32MX220F032C-50I/TL is suitable for 7 applications: USB Human Interface Devices (HID), Audio Playback and Processing, Capacitive Touch User Input, Low-Cost Graphics Displays (PMP), Industrial Control Modules, Consumer Electronics USB Peripherals, Battery-Powered IoT Edge Devices.
USB Human Interface Devices (HID)
The PIC32MX220F032C-50I/TL is a strong fit for USB HID peripherals because it integrates a USB 2.0 full-speed (12 Mbps) OTG/Device controller with on-chip transceiver, eliminating the need for an external PHY. Its 50 MHz MIPS32 M4K core delivers 83 DMIPS, easily handling HID report generation, debouncing, and LED/buzzer feedback at 1 kHz polling rates. With 8 KB SRAM, the part comfortably fits HID class stack plus application code. Compared with bit-banged USB on 8-bit MCUs, the on-chip USB controller cuts firmware size and improves timing margin. Typical use cases include custom keyboards, mice, gamepads, and USB sensor input gadgets.
Recommended
Audio Playback and Processing
The PIC32MX220F032C-50I/TL suits low-power audio playback because it has two I2S modules for digital codec connection (e.g., 16/32-bit audio DACs/ADCs at 8 kHz to 48 kHz sample rates) and the 50 MHz core sustains MP3/AAC decoding at modest bitrates. The 8 KB SRAM can hold small WAV samples directly, while larger clips stream from external SPI/QSPI Flash. PSRR and low-noise ADC features support microphone capture for voice remotes. Compared with adding an external DSP, integrating on the PIC32MX reduces PCB area. Typical deployments include Bluetooth audio remote controls, doorbells, and consumer speaker hubs.
Recommended
Capacitive Touch User Input
The PIC32MX220F032C-50I/TL integrates the CTMU (Charge Time Measurement Unit), which together with the 10-bit 1 Msps ADC supports up to 12 capacitive-touch channels for buttons, sliders, and proximity sensors. The 50 MHz core resolves touch scans in under 1 ms per button, enabling responsive UI input. With PPS (Peripheral Pin Select) remapping, the same firmware can adapt to different PCB button placements without code changes. Compared with a dedicated touch controller, integrating on the PIC32MX reduces BOM and PCB area. Typical use cases include appliance control panels, smart-home switches, and industrial HMI keypads.
Recommended
Low-Cost Graphics Displays (PMP)
The PIC32MX220F032C-50I/TL has a Parallel Master Port (PMP) capable of driving 8/16-bit parallel interfaces typical of low-cost TFT or OLED modules (e.g., 128x128 or 240x320). At 50 MHz it can refresh small LCD panels at 30+ fps while running the UI logic. The 8 KB SRAM limits framebuffer resolution but is adequate for tile-based rendering and partial updates. Compared to MCU-less LCD modules, this part enables dynamic UIs without an external graphics controller. Typical deployments include thermostat displays, point-of-sale customer keys, and instrumentation readouts.
Recommended
Industrial Control Modules
The PIC32MX220F032C-50I/TL operates over -40 to +85 C industrial temperature range and tolerates 2.3 V to 3.6 V supply, making it well-suited for industrial 24 V-bus-derived 3.3 V rails. The 10-bit ADC with 12 channels supports sensor aggregation (temperature, current, voltage), while two UART/I2C buses handle communication with PLCs or sensors. The 32 KB Flash can fit small Modbus or CAN-open stacks alongside control logic. The exposed thermal pad aids heat dissipation in enclosed cabinets. Typical applications include sensor hubs, factory automation sub-modules, and remote I/O units.
Recommended
Consumer Electronics USB Peripherals
The PIC32MX220F032C-50I/TL suits USB-connected consumer peripherals (e.g., custom game controllers, presentation remotes, USB sensors) because it integrates USB 2.0 FS, has 32 KB Flash for USB stacks plus application code, and runs from USB-bus power at 3.3 V. PPS remapping allows compact PCB layouts where I/O pads need flexible placement around connector shells. The active <0.5 mA/MHz draw keeps total current under 30 mA at full 50 MHz, well within USB bus-power limits. Typical use cases include USB fan controllers, smart-home USB dongles, and PC gaming accessories.
Recommended
Battery-Powered IoT Edge Devices
The PIC32MX220F032C-50I/TL is well-suited to battery-powered IoT edge devices because its active current is below 0.5 mA/MHz and it supports multiple low-power modes (Sleep, Idle, Deep Sleep) plus wake from RTCC, USB VBUS, or external interrupts. The wide 2.3 V to 3.6 V supply range covers single-cell Li-ion (3.0 V to 4.2 V) when regulated to 3.3 V, or 2xAA alkaline (2.0 V to 3.2 V) directly. CTMU enables low-power capacitive wake-up. Compared with Cortex-M0+ parts at similar MHz, the PIC32MX gives roughly 10x performance at modest current. Typical applications include remote sensors, BLE-bead sensors, and wearable peripherals.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX220F032C-50I/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX220F032C-I/TL | PIC32MX120F032C-50I/TL | PIC32MX210F016DT-I/TL | PIC32MX150F128C-50I/TL |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 36-VTLA (5x5) | 36-VTLA (5x5) - same | 36-VTLA (5x5) - same | 36-VTLA (5x5) - same | 36-VTLA (5x5) - same |
| Core Architecture | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K |
| Maximum CPU Frequency | 50 MHz (83 DMIPS) | 40 MHz (-20%) | 50 MHz | 40 MHz | 50 MHz |
| Flash Memory | 32 KB | 32 KB | 32 KB | 16 KB (-50%) | 128 KB (+300%) |
| SRAM | 8 KB | 8 KB | 8 KB | 4 KB (-50%) | 32 KB (+300%) |
| USB Controller | USB 2.0 FS OTG/Device | USB 2.0 FS OTG/Device | No USB | No USB | No USB |
| ADC | 10-bit 1 Msps 12 ch | 10-bit 1 Msps 12 ch | 10-bit 1 Msps 12 ch | 10-bit 1 Msps | 10-bit 1 Msps |
| Operating Temperature | -40 to +85 C (I grade) | -40 to +85 C | -40 to +85 C | -40 to +85 C | -40 to +85 C |
Key Differentiators
- Integrated USB 2.0 Full-Speed OTG/Device controller (vs PIC32MX120F032C-50I/TL)
- Higher CPU frequency than the I-suffix variant (vs PIC32MX220F032C-I/TL)
- PPS peripheral pin select for layout flexibility (vs PIC32MX210F016D-I/TL)
Design Notes
Place 100 nF decoupling capacitors as close as possible to every VDD/AVDD pin, and add a bulk 4.7 uF to 10 uF ceramic on the main supply rail. The PIC32MX220F032C-50I/TL has multiple VDD/VSS pairs; bypassing each is essential for the 50 MHz MIPS32 M4K core to maintain clean logic levels and meet USB signaling specifications. Without adequate decoupling, USB signal integrity can degrade below USB 2.0 full-speed (12 Mbps) requirements.
The VTLA 5x5 mm package has a small exposed thermal pad that must be soldered to a corresponding copper pad on the PCB, tied to VSS, to provide the primary heat-dissipation path. For continuous-active operation at 50 MHz (drawing ~25 mA core current), this exposed pad dissipates most of the heat; without it, junction temperature can rise 20-40 C above ambient. Avoid routing high-current traces across the exposed pad island; instead, stitch vias from the pad to an internal ground plane.
Follow Microchip's VTLA PCB layout guidelines for USB: keep the D+ and D+ traces short (under 25 mm), match impedance to 90 ohms differential, and place a ferrite bead on the USB VBUS line if bus-powered operation is intended. The crystal mismatches between pins XOSC1/XOSC2 and CLKO/CLKI controls should be routed short and surrounded by a ground guard ring to avoid injecting noise into the ADC reference.
Do not exceed the absolute maximum 3.6 V on any VDD pin; USB bus-power can transient to 5 V when the upstream port supplies power before regulation, so add a TVS diode or LDO upstream. Always enable the JTAG-disabled fuse carefully - if inadvertently set, recovery requires entering ICSP high-voltage mode. The PPS register remaps peripheral functions to physical pins; verify pin assignments against the datasheet pinout table after configuring PPS, since incorrect assignments can prevent peripherals from operating.
Compliance Information
RoHS and lead-free confirmed by Microchip product page. AEC-Q100 not applicable (consumer/industrial MCU, not automotive qualified). Halogen-free status not explicitly listed in the provided data.