PIC32CM1216MC00032-E/RTB - 48MHz Cortex-M0+ 128KB MCU | Microchip
MPN: PIC32CM1216MC00032-E/RTB ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.41 | $3.41 |
| 10 | $3.07 | $30.70 |
| 100 | $2.74 | $274.00 |
| 500 | $2.41 | $1,205.00 |
| 1,000 | $2.07 | $2,070.00 |
PIC32CM1216MC00032-E/RTB Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash for code, SRAM for data), and programmable peripherals on one die. The PIC32CM MC00 family uses the ARM Cortex-M0+ core — a 32-bit, von-Neumann architecture optimized for low power and deterministic interrupt response, making it the smallest and most energy-efficient member of the Cortex-M family. The 'PIC32CM' prefix places this device within Microchip's 5V-tolerant MCU portfolio aimed at industrial and automotive motor control.
Key features include a 12-channel DMA controller, 12-channel Event System, 16-channel ADC, 10-channel Analog Comparator (AC), 2-channel DAC, 6 SERCOM modules (configurable as UART/SPI/I2C), 4 TC and 3 TCC waveform output timers, a Configurable Custom Logic (CCL) block, and a Peripheral Event Controller (PDEC) for quadrature decoding. It also integrates a temperature sensor and operates across the -40C to +125C extended temperature range.
The Cortex-M0+ core uses the Thumb-2 instruction subset, providing 0.93 DMIPS/MHz while keeping the silicon area small. The PDEC hardware block offloads quadrature encoder counting from the CPU, enabling precise motor-speed loops without software overhead — critical for BLDC and PMSM motor control. SERCOM reconfiguration lets one peripheral serve as UART, SPI, or I2C, reducing BOM cost and giving board designers pin-out flexibility.
Typical applications include BLDC/PMSM motor drives, sensorless fan controllers, small appliance pumps, HVAC damper actuators, and LIN-node automotive body modules. The 5V-tolerant I/O directly interfaces with industrial 24V systems via external transceivers, eliminating level shifters.
When designing with this device, dedicate PCB ground copper under the exposed thermal pad and route motor-phase signals away from the crystal to avoid EMI coupling. Use the MPLAB X IDE with the MPLAB Harmony v3 framework for peripheral configuration and motor-control code generation.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC32CM1216MC00032-E/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-E/RTB (same form factor and footprint) — differing in Package, Communication Peripherals, Operating Temperature, Operating Temperature Range, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32CM1216MC00032T-E/RTB
✅ Drop-In✓ In Stock
$1.62 / Unit
View Datasheet →PIC32CM1216MC00032-I/RTB
✅ Drop-In✓ In Stock
$2.3 / Unit
View Datasheet →PIC32CM6408MC00032-E/RTB
✅ Drop-In✓ In Stock
$2.88 / Unit
View Datasheet →PIC32CM1216MC00032T-E/RTB
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.62 / Unit
View Datasheet →PIC32CM1216MC00032-E/RTB Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M0+ |
| CPU Bit Width | 32-bit |
| Maximum CPU Clock | 48 MHz |
| Program Flash Memory | 128 KB (128K x 8) |
| SRAM | 16 KB |
| Operating Voltage Range | 2.7 V to 5.5 V |
| Package | 32-pin VQFN (5x5 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40 C to +125 C (Extended) |
| DMA Channels | 12 |
| Event System Channels | 12 |
| ADC Channels | 16 |
| Analog Comparators (AC) | 10 |
| DAC Channels | 2 |
| SERCOM Modules | 6 (configurable UART/SPI/I2C) |
| TC Waveform Outputs | 4 |
| TCC Waveform Outputs | 3 |
| CCL Logic Blocks | Yes |
| PDEC (Quadrature Decoder) | Yes |
| Temperature Sensor | Yes |
| RoHS Status | Compliant |
PIC32CM1216MC00032-E/RTB Pin Configuration
| Pin 1 | PA00 — GPIO / TCC2 WO[0] / SERCOM1 PAD[0] |
| Pin 2 | PA01 — GPIO / TCC2 WO[1] / SERCOM1 PAD[1] |
| Pin 3 | PA02 — GPIO / Analog / ADC AIN[0] / DAC VOUT |
| Pin 4 | PA03 — GPIO / Analog / ADC AIN[1] / REF |
| Pin 5 | GND — Ground |
| Pin 6 | VDD — Digital supply voltage 2.7V-5.5V |
| Pin 7 | PA04 — GPIO / Analog / ADC AIN[2] / AC AIN[0] |
| Pin 8 | PA05 — GPIO / Analog / ADC AIN[3] / AC AIN[1] |
| Pin 9 | PA06 — GPIO / Analog / ADC AIN[4] / AC AIN[2] |
| Pin 10 | PA07 — GPIO / Analog / ADC AIN[5] / AC AIN[3] |
| Pin 11 | PA08 — GPIO / SERCOM0 PAD[0] / I2S SCK |
| Pin 12 | PA09 — GPIO / SERCOM0 PAD[1] / I2S FS |
| Pin 13 | PA10 — GPIO / SERCOM0 PAD[2] / I2S MCK |
| Pin 14 | PA11 — GPIO / SERCOM0 PAD[3] / I2S SDO |
| Pin 15 | VDDIO — I/O supply voltage |
| Pin 16 | GND — Ground |
| Pin 17 | PA14 — GPIO / SERCOM2 PAD[2] / TC4 WO[0] |
| Pin 18 | PA15 — GPIO / SERCOM2 PAD[3] / TC4 WO[1] |
| Pin 19 | PA16 — GPIO / SERCOM1 PAD[0] / TCC0 WO[0] |
| Pin 20 | PA17 — GPIO / SERCOM1 PAD[1] / TCC0 WO[1] |
| Pin 21 | PA18 — GPIO / SERCOM1 PAD[2] / TCC0 WO[2] |
| Pin 22 | PA19 — GPIO / SERCOM1 PAD[3] / TCC0 WO[3] |
| Pin 23 | PA20 — GPIO / SERCOM3 PAD[0] / TCC1 WO[0] |
| Pin 24 | PA21 — GPIO / SERCOM3 PAD[1] / TCC1 WO[1] |
| Pin 25 | PA22 — GPIO / SERCOM3 PAD[2] / TCC1 WO[2] |
| Pin 26 | PA23 — GPIO / SERCOM3 PAD[3] / TCC1 WO[3] |
| Pin 27 | PA24 — GPIO / SERCOM4 PAD[0] / USB D- |
| Pin 28 | PA25 — GPIO / SERCOM4 PAD[1] / USB D+ |
| Pin 29 | PA27 — GPIO / SERCOM5 PAD[1] / TC2 WO[0] |
| Pin 30 | PA28 — GPIO / SERCOM5 PAD[2] / TC2 WO[1] |
| Pin 31 | RESET — Reset input, active low |
| Pin 32 | VDD — Digital supply voltage |
Typical Applications
PIC32CM1216MC00032-E/RTB is suitable for 6 applications: BLDC Motor Control (Sensorless FOC), LIN-Node Automotive Body Modules, HVAC Damper and Valve Actuators, Small Appliance Pumps and Fans, Industrial Sensor Hubs, Portable Consumer Devices.
BLDC Motor Control (Sensorless FOC)
The PIC32CM1216MC00032-E/RTB is purpose-built for sensorless Field-Oriented Control of BLDC and PMSM motors. Its integrated PDEC hardware block decodes quadrature encoder inputs offloading the CPU, while the three TCC waveform outputs generate complementary 3-phase PWM with programmable dead-time insertion. The 10-channel analog comparator array detects BEMF zero-crossings for sensorless commutation at speeds up to 50,000 RPM. With 48MHz Cortex-M0+ compute, the MCU executes the full FOC loop (Clarke/Park transforms, PI current control) in under 20 microseconds, leaving headroom for UART diagnostics and CAN/LIN stack. The wide 2.7V-5.5V supply directly drives 24V industrial bus rails via onboard pre-regulators.
Recommended
LIN-Node Automotive Body Modules
The PIC32CM1216MC00032's SERCOM modules support UART framing compatible with LIN 2.1 slave stacks, making the device ideal for automotive body controllers such as seat adjusters, mirror modules, and window lifters. The MCU's extended -40C to +125C operating range meets AEC-Q100 Grade 1 thermal endurance requirements for under-hood and cabin deployments. Six configurable SERCOM instances allow simultaneous LIN communication plus SPI sensor interfacing and I2C EEPROM backup. The 128KB Flash stores the LIN node configuration and diagnostic UDS services, while 16KB SRAM holds the message buffer and transport layer state. Microchip's Harmony LIN stack is pre-certified to LIN conformance test specifications.
Recommended
HVAC Damper and Valve Actuators
In HVAC damper and valve actuator designs, the PIC32CM1216MC00032-E/RTB combines 16 ADC channels for temperature/pressure sensing with 3 TCC outputs for servo motor PWM. The Configurable Custom Logic (CCL) block implements hardware safety interlocks — for example, disabling actuator drive on overcurrent without CPU intervention, satisfying IEC 60730 Class B functional safety requirements. The 12-channel Event System routes ADC end-of-conversion events directly to DMA, enabling zero-CPU-overhead sensor sampling at 100kS/s. With its small 5x5mm VQFN footprint, the MCU fits inside compact actuator housings alongside the motor and H-bridge.
Recommended
Small Appliance Pumps and Fans
The PIC32CM1216MC00032-E/RTB powers cost-optimized sensorless pumps and fans in white goods. Its 5V-native I/O eliminates level-shifters required by 3.3V-only MCUs, reducing BOM cost. The integrated temperature sensor enables overtemperature protection by monitoring the die junction temperature during high-current motor stalls. The PDEC and TCC blocks together implement single-shunt sensorless FOC for pump drives, while SERCOM channels communicate with a master controller over UART or LIN. The 128KB Flash accommodates closed-loop control algorithms, fault logging, and OTA bootloader support for field firmware updates.
Recommended
Industrial Sensor Hubs
In industrial sensor hubs aggregating temperature, pressure, and flow measurements, the PIC32CM1216MC00032's 16 ADC channels and 6 SERCOM interfaces connect to multiple analog and digital sensors simultaneously. The 12-channel DMA offloads continuous data acquisition, while the Event System triggers conversions on timer or external interrupts without CPU wakeup. The 5V-tolerant I/O directly interfaces with industrial 4-20mA loop sensors and 24V digital inputs via simple resistive dividers. The MCU's 48MHz core processes MODBUS RTU framing and checksum calculations in real time, while the 16KB SRAM buffers measurement frames before transmission.
Recommended
Portable Consumer Devices
Although optimized for industrial 5V environments, the PIC32CM1216MC00032-E/RTB also serves battery-powered consumer products requiring high computational throughput at low cost. Its Cortex-M0+ core delivers 0.93 DMIPS/MHz at active currents below 4mA, and its peripheral SleepWalking modes enable sensor polling while the CPU remains idle. The 5x5mm VQFN package fits inside wearable form factors, while the 128KB Flash stores graphics libraries, BLE stack fragments, and USB device class firmware. Microchip's MPLAB Harmony v3 includes turnkey application examples for sensor fusion, audio playback, and capacitive touch UI.
Recommended
Recommended Products Summary
Engineering reference data for PIC32CM1216MC00032-E/RTB — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32CM1216MC00032T-E/RTB | PIC32CM1216MC00032-I/RTB | PIC32CM6408MC00032-E/RTB | PIC32CM1216MC00032-E/PT | PIC32CM1216MC00032T-E/RTB |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 32-pin VQFN (5x5 mm) | 32-pin VQFN (5x5 mm) - same | 32-pin VQFN (5x5 mm) - same | 32-pin VQFN (5x5 mm) - same | 32-pin TQFP (7x7 mm) - different footprint | 32-pin VQFN (5x5 mm) - same |
| Flash Memory | 128 KB | 128 KB | 128 KB | 64 KB | 128 KB | 128 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 8 KB | 16 KB | 16 KB |
| CPU Clock | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Operating Temperature | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) |
| SERCOM Modules | 6 | 6 | 6 | 6 | 6 | 6 |
| PDEC (Quadrature Decoder) | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- 5V-tolerant native I/O versus 3.3V-only competitors (vs STM32 Cortex-M0+ family (3.3V only))
- Integrated PDEC and 10 analog comparators for sensorless motor control (vs PIC32CM1216LE00032 (low-power family variant))
- Same 32-pin VQFN footprint as lower-Flash sibling enables seamless memory upgrade (vs PIC32CM6408MC00032-E/RTB (64KB Flash variant))
Design Notes
Estimated: At maximum CPU activity (48MHz, all peripherals enabled), the VQFN-32 package dissipates approximately 30mW (3.3V × 9mA active current). With theta_JA of 40 C/W on a 4-layer JEDEC EIA/JESD51 1oz test board, junction temperature rise is only 1.2 C above ambient — thermal management is generally not a concern for this MCU even at +125 C ambient, provided the exposed thermal pad is soldered to a continuous ground copper pour of at least 25mm².
Place a single 100nF X7R decoupling capacitor within 2mm of each VDD pin, plus a bulk 4.7uF X5R capacitor on the main VDD rail. The exposed thermal pad (EP) must be soldered to a continuous ground plane with at least 9 thermal vias (0.3mm drill, 0.5mm pitch) to the inner ground layer. Keep crystal traces within 5mm of the XIN/XOUT pins and guard them with a ground ring to avoid EMI pickup that can corrupt USB or LIN timing.
Do not enable SERCOM pad remapping while a peripheral is active — always disable the peripheral before changing PMUX settings. When using the PDEC for quadrature decoding, ensure the QDI inputs are mapped to adjacent pins to minimize input skew (data sheet specifies 10ns max). Failing to clear the TC and TCC interrupt flags before enabling interrupts causes spurious first-interrupt events that hang motor-control loops.
Compliance Information
RoHS compliant per Microchip product declaration. The -E temp grade supports automotive environments but the part itself is not formally AEC-Q100 qualified; consult Microchip for full automotive-grade equivalents.
