PIC32CM1216MC00032T-E/RTB - 48MHz Cortex-M0+ MCU 128KB | Microchip
MPN: PIC32CM1216MC00032T-E/RTB ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.61 | $261.00 |
| 500 | $2.18 | $1,090.00 |
| 1,000 | $1.85 | $1,850.00 |
| 3,000 | $1.62 | $4,860.00 |
PIC32CM1216MC00032T-E/RTB Overview
A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory (Flash), working memory (SRAM), and a rich set of programmable peripherals on a single silicon die. The PIC32CM MC family in particular is positioned by Microchip as a 5V-tolerant Cortex-M0+ family for noisy environments, sitting in the broader taxonomy: microcontroller -> embedded processor -> semiconductor. This hierarchy is important because MCUs are the smallest programmable building block above fixed-function logic and below application processors (MPUs).
Key features include 128KB Flash organized as 128K x 8, 16KB SRAM, and motor-control peripherals (PWM, ADC, quadrature decoder) integrated on-chip. The Cortex-M0+ core implements the ARMv6-M architecture with single-cycle I/O access, hardware multiply, and the Serial Wire Debug (SWD) interface. Communications peripherals include SERCOM modules that can be configured as UART, SPI, or I2C, plus LIN support for automotive sub-bus networks. The device also supports up to 125 degrees C operating temperature in the 'E' temperature grade (extended).
Typical applications include BLDC/PMSM motor control for small fans, pumps, and appliances, LIN-connected body electronics, industrial sensor nodes with UART/SPI peripherals, LED lighting controllers, and low-cost consumer devices that require 5V I/O tolerance. The combination of 5V I/O tolerance and motor-control timers reduces external level-shifters and gate-driver complexity.
When designing with this device, ensure the SWD pins are accessible for in-circuit programming and that the motor-control timer outputs are routed to pins that support PWM. The internal 48MHz oscillator is factory-trimmed and is sufficient for many applications, but motor-control loops may benefit from a higher-accuracy external crystal.
Drop-in alternatives for PIC32CM1216MC00032T-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 PIC32CM1216MC00032T-E/RTB (same form factor and footprint) — differing in Package, Communication Peripherals, Operating Temperature, ADC, Operating Temperature Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32CM1216MC00032T-I/RTB
✅ Drop-In✓ In Stock
$2.71 / Unit
View Datasheet →PIC32CM1216MC00032-E/RTB
✅ Drop-In✓ In Stock
$2.07 / Unit
View Datasheet →PIC32CM1216MC00032T-E/M7
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC32CM1216MC00048T-E/RTB
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ATSAM D20E18A-MUT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32CM1216MC00032T-E/RTB Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M0+ (32-bit, single-core) |
| Architecture | ARMv6-M |
| CPU Clock (max) | 48 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| SRAM | 16 KB |
| Supply Voltage (VDD) | 2.7 V to 5.5 V |
| Operating Temperature | -40C to +125C (E grade, extended) |
| Package | 32-VQFN (5x5 mm) with exposed pad |
| Pin/Package Code | RTB |
| Mounting Type | Surface Mount |
| Communication Peripherals | SERCOM (UART/SPI/I2C), LIN |
| Motor-Control Peripherals | PWM, ADC, quadrature decoder (per family datasheet) |
| Debug Interface | Serial Wire Debug (SWD) |
| MSL Level | MSL3 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC32CM1216MC00032T-E/RTB Pin Configuration
| Pin 1 | PA00 — GPIO / peripheral function (SERCOM, etc.) |
| Pin 2 | PA01 — GPIO / peripheral function |
| Pin 3 | PA02 — GPIO / peripheral function / ADC |
| Pin 4 | PA03 — GPIO / peripheral function / ADC |
| Pin 5 | GND — Ground |
| Pin 6 | VDD — Supply voltage (2.7V to 5.5V) |
| Pin 7 | PA04 — GPIO / peripheral function |
| Pin 8 | PA05 — GPIO / peripheral function |
| Pin 9 | PA06 — GPIO / peripheral function |
| Pin 10 | PA07 — GPIO / peripheral function |
| Pin 11 | PA08 — GPIO / peripheral function |
| Pin 12 | PA09 — GPIO / peripheral function |
| Pin 13 | PA10 — GPIO / peripheral function |
| Pin 14 | PA11 — GPIO / peripheral function |
| Pin 15 | PA14 — GPIO / peripheral function |
| Pin 16 | PA15 — GPIO / peripheral function |
| Pin 17 | PA16 — GPIO / peripheral function |
| Pin 18 | PA17 — GPIO / peripheral function |
| Pin 19 | PA18 — GPIO / peripheral function |
| Pin 20 | PA19 — GPIO / peripheral function |
| Pin 21 | PA22 — GPIO / peripheral function |
| Pin 22 | PA23 — GPIO / peripheral function |
| Pin 23 | PA24 — GPIO / peripheral function |
| Pin 24 | PA25 — GPIO / peripheral function |
| Pin 25 | PB02 — GPIO / peripheral function |
| Pin 26 | PB03 — GPIO / peripheral function |
| Pin 27 | PB08 — GPIO / peripheral function |
| Pin 28 | PB09 — GPIO / peripheral function |
| Pin 29 | PB10 — GPIO / peripheral function |
| Pin 30 | PB11 — GPIO / peripheral function |
| Pin 31 | RESET — Reset input (active-low) |
| Pin 32 | SWDIO — Serial Wire Debug data |
| Pin 33 | EP — Exposed thermal pad (must be soldered to GND plane) |
Typical Applications
PIC32CM1216MC00032T-E/RTB is suitable for 6 applications: BLDC/PMSM Motor Control, LIN Automotive Body Electronics, Industrial Sensor Nodes, LED Lighting Controllers, Consumer Appliance HMI, Battery-Operated IoT Edge Devices.
BLDC/PMSM Motor Control
The PIC32CM1216MC00032T-E/RTB drives small BLDC and PMSM motors in appliances, fans, and pumps. Its 48MHz Cortex-M0+ core executes FOC or trapezoidal commutation loops with sufficient headroom, while the integrated PWM timers, synchronized ADC, and quadrature decoder interface remove the need for an external gate-driver companion. The 2.7V to 5.5V supply tolerates 5V motor bus transients without level shifting, and the extended -40C to +125C temperature grade supports under-hood and outdoor enclosures. Typical current loop update rates of 10 to 20 kHz leave most of the CPU idle for housekeeping.
Recommended
LIN Automotive Body Electronics
The PIC32CM1216MC00032T-E/RTB serves as a LIN slave in body-electronics modules such as door locks, mirror adjusters, seat controllers, and ambient lighting. Its hardware LIN peripheral handles bus framing and timing without CPU loading, while SERCOM blocks provide UART/SPI for companion sensor ICs. The 5V-tolerant I/O is matched to 12V automotive battery rails after a simple LDO, and the extended -40C to +125C operating range meets AEC-Q100-style thermal environments. With 128KB Flash the device easily accommodates LIN stacks, J1939-style diagnostics, and application logic in a single chip.
Recommended
Industrial Sensor Nodes
The PIC32CM1216MC00032T-E/RTB is well suited to industrial 4-20mA loop-powered sensor nodes, vibration sensors, and IO-Link-style endpoints. Its Cortex-M0+ core plus 16KB SRAM runs protocol stacks while leaving room for calibration and DSP-like filtering in firmware. The 2.7V to 5.5V supply aligns with 24V industrial rails after a buck or LDO, and the extended temperature grade survives cabinet and factory-floor conditions. SERCOM blocks handle SPI sensor ICs, UART-to-host bridges, and I2C EEPROM backup; the 128KB Flash fits bootloader, application, and OTA staging image.
Recommended
LED Lighting Controllers
The PIC32CM1216MC00032T-E/RTB acts as a smart LED controller in connected luminaires, supporting DMX, DALI, or 0-10V dimming protocols while driving MOSFETs or constant-current LED drivers. Its PWM outputs and 16-bit timers allow smooth dimming curves and color-mixing for RGBW fixtures, and its Cortex-M0+ core handles network stack plus light-engine algorithms. The 5V I/O tolerance simplifies direct interface to legacy dimmers, and the wide temperature range accommodates sealed IP-rated fixtures in outdoor or industrial installations. The 32-VQFN footprint fits inside compact driver housings.
Recommended
Consumer Appliance HMI
The PIC32CM1216MC00032T-E/RTB powers human-machine interfaces in white goods such as washing machines, ovens, and dishwashers. The MCU drives segment-LCD or TFT displays via SPI, scans capacitive touch keys, and reads temperature/level sensors while managing user-interface state machines. The 5V I/O tolerance interfaces directly to legacy triac-based heater drivers and 5V sensors, eliminating level shifters. With 128KB Flash and 16KB SRAM, the device fits full color UI graphics, audio feedback, and connectivity stacks such as BLE-via-SPI companion modules.
Recommended
Battery-Operated IoT Edge Devices
The PIC32CM1216MC00032T-E/RTB anchors battery-powered IoT edge nodes in smart-home, asset-tracking, and agricultural-monitoring deployments. The Cortex-M0+ core combined with Microchip sleep modes extends battery life, and the wide 2.7V to 5.5V supply accepts single-cell Li-Ion (3.7V nominal) or 2x AA alkaline (3V nominal) chemistries directly. SERCOM peripherals talk to SPI sensors, I2C EEPROM, and UART-hosted cellular or LoRa modules, while the 128KB Flash comfortably fits TLS-lite stacks and OTA firmware. The exposed-pad 32-VQFN simplifies thermal layout in sealed enclosures.
Recommended
Recommended Products Summary
Engineering reference data for PIC32CM1216MC00032T-E/RTB — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32CM1216MC00032T-I/RTB | PIC32CM1216MC00032-E/RTB | PIC32CM1216MC00032T-E/M7 | PIC32CM1216MC00048T-E/RTB | ATSAM D20E18A-MUT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology (Atmel legacy) |
| Package | 32-VQFN 5x5 mm (RTB) | 32-VQFN 5x5 mm (RTB) - same | 32-VQFN 5x5 mm (RTB) - same | 32-VQFN 5x5 mm - same | 32-VQFN 5x5 mm (RTB) - same | 32-VQFN 5x5 mm - same footprint |
| Core / Architecture | Cortex-M0+ / ARMv6-M | Cortex-M0+ / ARMv6-M | Cortex-M0+ / ARMv6-M | Cortex-M0+ / ARMv6-M | Cortex-M0+ / ARMv6-M | Cortex-M0+ / ARMv6-M |
| CPU Clock (max) | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash | 128 KB | 128 KB | 128 KB | 128 KB | 256 KB | 256 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB | 32 KB | 32 KB |
| Supply Voltage | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 1.62V to 3.6V |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C |
| Automotive / 5V I/O | Yes, 5V I/O tolerant | Yes, 5V I/O tolerant | Yes, 5V I/O tolerant | Yes, 5V I/O tolerant | Yes, 5V I/O tolerant | No, 3.3V only |
| Approx Unit Price (qty 1) | USD 3.42 | USD 3.32 | USD 3.40 | USD 3.42 | USD 4.10 | USD 4.85 |
Key Differentiators
- True 5V I/O tolerance on a Cortex-M0+ core (vs ATSAM D20E18A-MUT)
- Drop-in silicon compatibility across temperature grades (vs PIC32CM1216MC00032T-I/RTB)
- Integrated motor-control peripherals (vs Generic Cortex-M0+ MCUs without motor timers)
Design Notes
The 32-VQFN (5x5 mm) package exposes its central thermal pad, which MUST be soldered to a ground plane for both thermal dissipation and a low-impedance return path. Per the Microchip PIC32CM MC family datasheet, missing the exposed-pad solder connection can raise junction temperature by 20 to 40 C in motor-control applications. Stencil aperture should be split into a 3x3 grid of openings (~0.5 mm each) for reliable paste release and to avoid voids under the pad.
Place a 100 nF ceramic decoupling capacitor within 2 mm of each VDD pin and a single 4.7 uF to 10 uF bulk capacitor on the main VDD rail. According to Microchip PIC32CM MC family layout guidelines, the wide 2.7V to 5.5V supply tolerates either 3.3V LDOs or direct 5V rails, but the bulk capacitor must be sized to handle peak transient loads from internal PLL and ADC references during startup.
Do not assume the SERCOM peripheral pad mapping is fixed - SERCOM functions are remappable via the PORT multiplexer and must be configured in the MUX register before use. Per the PIC32CM MC family datasheet, attempting to drive a peripheral function on a pin without enabling its MUX bit results in silent GPIO-only operation. Always cross-reference the pinout table with the SERCOM channel number before finalizing PCB layout.
Route SWDIO and SWCLK as a short differential pair (matched length within 5 mm) and avoid crossing them with high-current PWM traces or motor-phase signals. According to Microchip PIC32CM MC family programming guidelines, SWD signal integrity directly impacts in-circuit programming reliability; in motor-control designs, place the SWD header away from switching nodes to prevent debug-session lockups.
Estimated: at 48MHz CPU clock, 3.3V supply, and typical 12 mA active current, the device dissipates about 40 mW; at 5V supply this rises to about 60 mW. Thermal rise is negligible in typical ambient conditions, but in sealed IP-rated luminaires or motor housings verify with a thermocouple that the package top stays below 100 C at maximum ambient to preserve the 125 C Tj limit.
Compliance Information
RoHS and lead-free per Microchip product page. Not formally AEC-Q100 qualified per the family datasheet, although the E temperature grade supports AEC-Q100-style thermal environments. Halogen-free status not explicitly listed in the verified data - set to 'unknown'.
