PIC32CM1216MC00032-I/RTB - 48MHz Cortex-M0+ 128KB MCU | Microchip
MPN: PIC32CM1216MC00032-I/RTB ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.18 | $31.80 |
| 100 | $2.85 | $285.00 |
| 500 | $2.55 | $1,275.00 |
| 1,000 | $2.3 | $2,300.00 |
PIC32CM1216MC00032-I/RTB Overview
What is a 32-bit microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), volatile memory (SRAM), and peripheral interfaces. The PIC32CM MC00 family uses the ARM Cortex-M0+ core, the smallest and most energy-efficient 32-bit core in the ARM family, offering deterministic interrupt response and Thumb-2 instruction set efficiency. Within the broader taxonomy, this part is a Cortex-M0+ MCU -> ARM MCU -> 32-bit MCU -> microcontroller -> semiconductor.
Key features include 128 KB Flash, 16 KB SRAM, 48 MHz core clock, integrated motor-control PWM, SERCOM (serial communication) peripherals with LIN support, and a wide operating voltage range suited for 5 V systems. The 32-VQFN (5x5) package exposes a generous set of I/O pins while keeping the PCB footprint under 25 mm², ideal for compact motor-control and industrial designs.
Technically, the device is built on a low-power CMOS process and includes an on-chip debugger, multiple timers, ADC, and motor-control PWMs. Hardware-level features such as brown-out detect, watchdog timer, and clock failure detection improve reliability in electrically noisy motor-drive environments where stray inductance and back-EMF can corrupt logic signals.
Typical applications include BLDC and PMSM motor control, HVAC fan/pump controllers, appliance control boards, small industrial drives, and LIN-attached body-control nodes. The combination of 5 V tolerance and integrated motor-control peripherals simplifies mixed-signal PCB design.
When designing with this part, verify that your motor-control algorithm (FOC, trapezoidal, or sensorless) is supported by the available PWMs and ADCs. Decoupling, ground returns, and proper PCB layout for high-current switching traces are essential for EMC compliance.
Drop-in alternatives for PIC32CM1216MC00032-I/RTB — 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 PIC32CM1216MC00032-I/RTB (same form factor and footprint) — differing in Package, Communication Peripherals, SRAM, Core, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32CM1216MC00032-E/RTB
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View Datasheet →PIC32CM6408MC00032-I/RTB
✅ Drop-In✓ In Stock
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View Datasheet →PIC32CM1216MC00048-I/RTB
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32CM1216MC00032T-E/RTB
✅ Drop-In✓ In Stock
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View Datasheet →PIC32CM1216MC00032-I/RTB Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M0+ |
| Core Bit Width | 32-bit |
| Maximum CPU Clock | 48 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| SRAM | 16 KB |
| Operating Temperature Range | -40C to +85C (Industrial) |
| Package | 32-pin VQFN (5x5 mm) |
| Mounting Type | Surface Mount |
| Motor Control Peripherals | PWM channels, ADC for motor control |
| Communication Peripherals | SERCOM, LIN, UART, SPI, I2C |
| Series | PIC32CM MC00 Family |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC32CM1216MC00032-I/RTB Pin Configuration
| Pin 1 | VDD — Digital power supply |
| Pin 2 | GND — Ground |
| Pin 3 | PA00 — GPIO / SERCOM |
| Pin 4 | PA01 — GPIO / SERCOM |
| Pin 5 | PA02 — GPIO / ADC |
| Pin 6 | PA03 — GPIO / ADC reference |
| Pin 7 | PA04 — GPIO / SERCOM |
| Pin 8 | PA05 — GPIO / SERCOM |
| Pin 9 | PA06 — GPIO / SERCOM |
| Pin 10 | PA07 — GPIO / SERCOM |
| Pin 11 | PA08 — GPIO / SERCOM |
| Pin 12 | PA09 — GPIO / SERCOM |
| Pin 13 | PA10 — GPIO / SERCOM |
| Pin 14 | PA11 — GPIO / SERCOM |
| Pin 15 | PA12 — GPIO / SERCOM |
| Pin 16 | PA13 — GPIO / SERCOM |
| Pin 17 | PA14 — GPIO / SERCOM |
| Pin 18 | PA15 — GPIO / SERCOM |
| Pin 19 | PA16 — GPIO / SERCOM |
| Pin 20 | PA17 — GPIO / SERCOM |
| Pin 21 | PA18 — GPIO / SERCOM |
| Pin 22 | PA19 — GPIO / SERCOM |
| Pin 23 | PA20 — GPIO / SERCOM |
| Pin 24 | PA21 — GPIO / SERCOM |
| Pin 25 | PA22 — GPIO / SERCOM |
| Pin 26 | PA23 — GPIO / SERCOM |
| Pin 27 | PA24 — GPIO / SERCOM |
| Pin 28 | PA25 — GPIO / SERCOM |
| Pin 29 | PA26 — GPIO / SERCOM |
| Pin 30 | PA27 — GPIO / SERCOM |
| Pin 31 | PA28 — GPIO / SERCOM |
| Pin 32 | EP — Exposed thermal pad (GND) |
Typical Applications
PIC32CM1216MC00032-I/RTB is suitable for 6 applications: BLDC and PMSM Motor Control, HVAC Fan and Pump Controllers, Appliance Control Boards, Small Industrial Drives, Automotive Body-Control LIN Nodes, Battery-Powered IoT Sensor Nodes.
BLDC and PMSM Motor Control
The PIC32CM1216MC00032-I/RTB's 48 MHz Cortex-M0+ core, 128 KB Flash, and dedicated motor-control PWM peripherals with complementary outputs and dead-band generation make it ideal for sensorless FOC or trapezoidal commutation on BLDC and PMSM motors. The 5 V tolerance directly interfaces with 5 V gate drivers without level shifters, simplifying the power stage. Compared to discrete MCU+FPGA solutions, this single-chip approach reduces BOM cost and PCB area while supporting field-oriented control algorithms that demand deterministic interrupt latency.
Recommended
HVAC Fan and Pump Controllers
The 5 V operating range and integrated ADC for current sensing position the PIC32CM1216MC00032-I/RTB as a strong fit for HVAC fan and pump controllers operating from 24 V or 48 V rectified buses. The Cortex-M0+ core handles closed-loop PI control of airflow or fluid pressure while the LIN peripheral interfaces with building automation networks. The 128 KB Flash supports advanced control algorithms including adaptive filtering and soft-start profiles without external memory.
Recommended
Appliance Control Boards
Washing machines, refrigerators, and dishwashers benefit from the PIC32CM1216MC00032-I/RTB's combination of motor-control PWM, multiple SERCOM channels, and 5 V noise immunity. The MCU can simultaneously drive a BLDC drain pump, read temperature/humidity sensors via I2C, and communicate with the main control panel through UART or LIN. The 16 KB SRAM buffers sensor data without external memory, reducing BOM cost on cost-sensitive consumer appliances.
Recommended
Small Industrial Drives
Compact industrial drives below 100 W benefit from the PIC32CM1216MC00032-I/RTB's industrial -40C to +85C operating range and SERCOM-based communication stack. The MCU supports Modbus RTU over UART for SCADA integration, plus SPI for digital potentiometer control of the power stage. Hardware brown-out detection and watchdog timer improve field reliability, critical for drives installed in inaccessible industrial cabinets.
Recommended
Automotive Body-Control LIN Nodes
The PIC32CM1216MC00032-I/RTB's LIN support and industrial temperature range position it for non-safety-critical automotive body-control nodes such as seat controllers, mirror adjusters, and lighting drivers. Pair the MCU with a LIN transceiver like ATA6561 to create a cost-optimized LIN slave node. The 32-VQFN footprint fits inside space-constrained door-module PCBs, and the 128 KB Flash handles LIN diagnostic services plus application logic.
Recommended
Battery-Powered IoT Sensor Nodes
While primarily a 5 V MCU, the PIC32CM1216MC00032-I/RTB's low-power peripherals and Cortex-M0+ sleep modes support battery-powered IoT sensor nodes that wake periodically to read sensors and transmit over LIN or UART. The 128 KB Flash accommodates OTA update bootloaders plus application code, and the 16 KB SRAM buffers sensor data during transmit bursts. Pair with an external sensor like MCP9808 for HVAC monitoring or soil-moisture sensing.
Recommended
Recommended Products Summary
Engineering reference data for PIC32CM1216MC00032-I/RTB — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32CM1216MC00032-E/RTB | PIC32CM6408MC00032-I/RTB | PIC32CM1216MC00048-I/RTB | PIC32CM1216MC00032T-E/RTB |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 32-VQFN (5x5 mm) | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same |
| Core | ARM Cortex-M0+ 48 MHz | ARM Cortex-M0+ 48 MHz | ARM Cortex-M0+ 48 MHz | ARM Cortex-M0+ 48 MHz | ARM Cortex-M0+ 48 MHz |
| Flash Memory | 128 KB | 128 KB | 64 KB | 128 KB | 128 KB |
| SRAM | 16 KB | 16 KB | 8 KB | 16 KB | 16 KB |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) |
| Motor Control PWM | Yes | Yes | Yes | Yes | Yes |
| LIN Support | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- 5 V I/O tolerance with integrated motor-control PWM (vs Generic Cortex-M0+ MCUs from competitors)
- 128 KB Flash with 16 KB SRAM on a Cortex-M0+ core (vs PIC32CM6408MC00032-I/RTB)
- Industrial -40C to +85C operating range option with same die (vs PIC32CM1216MC00032-E/RTB)
Design Notes
The 32-VQFN (5x5 mm) package uses an exposed thermal pad (EP, pin 32) that MUST be soldered to a ground pour on the top or bottom PCB layer. Recommended copper area is at least 25 mm² of continuous ground plane connected through 9 to 16 thermal vias (0.3 mm drill, 0.6 mm pad) to maximize heat dissipation. For motor-control applications driving high-side switches, ambient temperatures up to 85°C are achievable with proper PCB layout, but the EP pad must NOT be left unconnected.
Decouple VDD with a 100 nF X7R ceramic capacitor placed within 3 mm of the VDD pin, plus a bulk 4.7 µF tantalum or ceramic capacitor on the same net. For motor-control designs with high dV/dt switching, place a ferrite bead between the digital VDD and analog AVDD supply and add a 10 nF + 100 nF capacitor pair on AVDD. Keep high-current switching traces away from SERCOM lines routed to connectors.
Do not assume 5 V tolerance for any 3.3 V-only Cortex-M0+ competitor parts; the PIC32CM MC00's 5 V I/O tolerance is a key feature for industrial designs. Always configure unused pins as outputs with low state (not high-impedance inputs) to reduce EMI susceptibility. When using the LIN peripheral, ensure the master/slave configuration matches the network topology, and budget for the LIN transceiver's propagation delay when computing response timing.
Separate digital ground (DGND) and analog ground (AGND) planes, joining them at a single point near the MCU's GND pin to avoid ground loops in motor-current sensing. Route the ADC reference voltage trace in a guard ring tied to AGND to prevent digital switching noise from corrupting current-sense measurements. The PIC32CM MC00 family datasheet DS60001638 includes a recommended PCB layout section with reference designs for sensorless FOC motor control.
Compliance Information
RoHS and REACH compliant per Microchip product page. AEC-Q100 not explicitly stated for -I grade; the -E grade targets automotive applications. Halogen-free and lead-free per Microchip packaging documentation. Recent PCN (Future Electronics) added UMC Fab 8N as a second fab site, improving supply continuity.
