PIC24F16KM202T-I/SS - 16-bit XLP MCU, 32MHz, 16KB Flash | Microchip
MPN: PIC24F16KM202T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.95 | $3.95 |
| 10 | $3.55 | $35.50 |
| 100 | $2.97 | $297.00 |
| 500 | $2.68 | $1,340.00 |
| 1,000 | $2.4 | $2,400.00 |
| 2,100 | $2.18 | $4,578.00 |
PIC24F16KM202T-I/SS Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals such as ADC, timers, and communication interfaces on one die. Within the broader hierarchy, MCUs sit under microcontrollers and processors, which are themselves a category of embedded processors in the semiconductor taxonomy. The PIC24F XLP family targets ultra-low-power embedded designs, while the 16-bit modified-RISC and CISC hybrid core balances deterministic interrupt response with C-friendly code density.
Key features of the PIC24F16KM202T-I/SS include a 12-bit A/D converter, an 8-bit DAC, integrated op amps, comparators, a Configurable Logic Cell (CLC), multiple Capture/Compare/PWM modules, and serial interfaces such as I2C, SPI, and UART/USART plus IrDA and LIN support. The XLP designation indicates deep sleep currents in the nanoamp range, making this device suitable for battery-powered or energy-harvesting applications.
Typical applications include IoT sensor nodes, portable medical devices, industrial control, automotive body electronics (LIN bus), and ultra-low-power wireless endpoints. The combination of integrated op amps and a 12-bit ADC simplifies analog front-end design, eliminating external signal-conditioning components.
When designing with this MCU, confirm that the 28-SSOP footprint matches the PCB land pattern and that the operating voltage range aligns with your power tree; consider using MPLAB X IDE and the XC16 compiler toolchain for development.
This page synthesizes Microchip cross-reference findings, distributor pricing tiers, and engineering design notes - information not aggregated in the standalone PIC24F16KM202 datasheet.
Drop-in alternatives for PIC24F16KM202T-I/SS — 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 PIC24F16KM202T-I/SS (same form factor and footprint) — differing in Operating Temperature, Package, Core Architecture, ADC, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F16KM202-I/SS
✅ Drop-In✓ In Stock
$2.04 / Unit
View Datasheet →PIC24F16KL402-I/SS
✅ Drop-In✓ In Stock
$1.78 / Unit
View Datasheet →PIC24F16KL401-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24F16KA301T-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.68 / Unit
View Datasheet →PIC24F16KA101T-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.38 / Unit
View Datasheet →PIC24F16KA102T-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24F16KM202T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 16-bit modified Harvard |
| Family | PIC24F XLP 24F series |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 16 KB (5.5K x 24 words) |
| Data Memory (SRAM) | 2 KB |
| Operating Voltage Range | 1.8 V to 3.6 V |
| ADC | 12-bit, multi-channel |
| DAC | 8-bit, integrated |
| Integrated Op Amps | Yes |
| Comparators | Yes |
| Configurable Logic Cell (CLC) | Yes |
| Capture/Compare/PWM | Multiple CCP modules |
| Serial Interfaces | I2C, SPI, UART/USART, IrDA, LIN |
| Package | 28-SSOP (0.209 inch / 5.30 mm body width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial, I-grade) |
| RoHS Status | Compliant |
| Programming/Debug | ICSP via MPLAB ICD/REAL ICE/PICKit |
PIC24F16KM202T-I/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active-low |
| Pin 2 | RA0 — Port A bit 0 / analog input AN0 |
| Pin 3 | RA1 — Port A bit 1 / analog input AN1 |
| Pin 4 | RB0 — Port B bit 0 / analog input AN2 |
| Pin 5 | RB1 — Port B bit 1 / analog input AN3 |
| Pin 6 | RB2 — Port B bit 2 / analog input AN4 |
| Pin 7 | RB3 — Port B bit 3 / analog input AN5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 10 | RB4 — Port B bit 4 / analog input AN6 |
| Pin 11 | RB5 — Port B bit 5 / analog input AN7 |
| Pin 12 | RB6 — Port B bit 6 / ICSPCLK |
| Pin 13 | RB7 — Port B bit 7 / ICSPDAT |
| Pin 14 | RA2 — Port A bit 2 / analog input AN8 |
| Pin 15 | RA3 — Port A bit 3 / analog input AN9 |
| Pin 16 | RC0 — Port C bit 0 / analog input AN10 |
| Pin 17 | RC1 — Port C bit 1 / analog input AN11 |
| Pin 18 | RC2 — Port C bit 2 / analog input AN12 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RC3 — Port C bit 3 / analog input AN13 |
| Pin 22 | RC4 — Port C bit 4 / analog input AN14 |
| Pin 23 | RC5 — Port C bit 5 / analog input AN15 |
| Pin 24 | RC6 — Port C bit 6 / TX |
| Pin 25 | RC7 — Port C bit 7 / RX |
| Pin 26 | RA4 — Port A bit 4 / analog input AN16 |
| Pin 27 | RA5 — Port A bit 5 / analog input AN17 |
| Pin 28 | VCAP — Internal voltage regulator decoupling capacitor |
Typical Applications
PIC24F16KM202T-I/SS is suitable for 6 applications: IoT Wireless Sensor Node, Portable Medical Monitoring, Automotive LIN Bus Body Electronics, Industrial Sensor Interface, Smart Home / Building Automation, Consumer Battery Charger / Power Bank.
IoT Wireless Sensor Node
The PIC24F16KM202T-I/SS is well suited for IoT wireless sensor nodes that demand long battery life. Its XLP architecture delivers nanoamp-range deep-sleep currents, allowing years of operation on coin cells, while the 32 MIPS PIC24F core runs sensor fusion, encryption, and BLE/Zigbee stack handoff tasks. The integrated 12-bit ADC and op amp interface directly with temperature, pressure, and gas sensors, eliminating external conditioning. With 16 KB Flash and 2 KB SRAM, the device fits small protocol stacks such as Bluetooth Low Energy beacons or LoRaWAN MAC layers. Combined with I2C, SPI, and UART, designers can connect radios and sensors on a single chip.
Recommended
Portable Medical Monitoring
The PIC24F16KM202T-I/SS fits portable medical monitoring designs such as pulse oximeters, glucose meters, and wearable patches. Its integrated 8-bit DAC and op amp provide precision analog excitation for sensor electrodes and LEDs, while the 12-bit ADC delivers accurate readout of photodiode or electrochemical signals. The XLP low-power modes extend battery life between charges or replacements, and the wide 1.8 V to 3.6 V supply range accommodates single lithium or alkaline cells. The 28-SSOP package supports compact PCB layouts in handheld enclosures, and IEC 60730 Class B software libraries from Microchip ease medical-safety certification paths.
Recommended
Automotive LIN Bus Body Electronics
In automotive LIN bus body electronics such as window lifters, seat controllers, mirror modules, and ambient lighting, the PIC24F16KM202T-I/SS provides the 16-bit processing headroom and integrated peripherals required. The on-board LIN-compliant UART supports LIN 2.x slave communication, and the CCP/PWM modules drive motors, LEDs, or solenoids. The industrial -40C to +85C temperature grade handles cabin environments, while integrated comparators provide overcurrent detection. With 16 KB Flash the device fits typical LIN node firmware plus diagnostics, and the Configurable Logic Cell allows custom peripheral timing.
Recommended
Industrial Sensor Interface
The PIC24F16KM202T-I/SS serves industrial sensor interface modules - thermocouple conditioners, RTD readers, 4-20 mA loop transmitters, and bridge sensor signal conditioners. The integrated op amp accepts low-level analog inputs, while the 12-bit ADC digitizes them with adequate resolution for control loops. CCP/PWM modules generate excitation pulses for resistive bridges, and the Configurable Logic Cell implements custom digital filtering close to the sensor. Combined with RS-485 transceivers or UART-based HMI links, the MCU serves as a compact intelligent sensor front end.
Recommended
Smart Home / Building Automation
For smart home and building automation endpoints - occupancy sensors, smart thermostats, lighting controllers, and HVAC actuators - the PIC24F16KM202T-I/SS delivers the XLP low-power profile needed to run from harvested energy or long-life batteries. The integrated analog peripherals read light, motion, and temperature sensors directly, while I2C/SPI links host radios such as Sub-GHz transceivers or Wi-Fi co-processors. With multiple PWM channels the MCU can drive LED dimmers or motorized valves. The 28-SSOP footprint is well-suited for compact retrofit modules inside junction boxes.
Recommended
Consumer Battery Charger / Power Bank
The PIC24F16KM202T-I/SS supports smart consumer battery charger and power bank applications. Its 12-bit ADC monitors voltage and current at the battery, the CCP/PWM generates switching control signals, and the integrated op amp forms feedback loops for constant-current/constant-voltage regulation. The 8-bit DAC supports programmable reference levels, and the Configurable Logic Cell implements charging state machines. With USB or UART links to host MCUs, charger status can be reported to displays or smart devices, all from a compact 28-SSOP footprint running from a single cell.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F16KM202T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F16KM202-I/SS | PIC24F16KL402-I/SS | PIC24F16KL401-I/SS | PIC24F16KA301T-I/SS | PIC24F16KA101T-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Core Architecture | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit |
| Maximum CPU Speed | 32 MHz (16 MIPS) | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Integrated Op Amp | Yes | Yes | No | No | No | No |
| Integrated 8-bit DAC | Yes | Yes | No | No | No | No |
| Configurable Logic Cell | Yes | Yes | No | No | No | No |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| XLP Low-Power Modes | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Integrated op amp + 8-bit DAC + Configurable Logic Cell in 28-SSOP (vs PIC24F16KL402-I/SS)
- 16 KB Flash with full peripheral set in 28-SSOP (vs PIC24F16KA101T-I/SS)
- Industrial -40C to +85C temperature grade (vs PIC24F16KA102T-I/SS)
Design Notes
Decouple each VDD pin (pins 9 and 20 on the 28-SSOP) with a 100 nF ceramic capacitor placed within 5 mm of the pin, plus a bulk 4.7 uF tantalum or ceramic close to the package. Add a low-ESR 1 uF to 10 uF capacitor on VCAP/VDDcore to stabilize the internal regulator. For battery-powered designs, switching between Sleep and Run modes using the XLP peripherals can reduce average current to single-digit microamps.
Keep analog traces short and shielded by a digital ground guard ring if PCB area allows. Route I2C lines 4.28 mm center away from switching power traces to reduce coupling. The 28-SSOP land pattern is 0.65 mm pitch; use 0.20 mm clearance for solder mask slivers and follow IPC-7351 SSOP guidelines. For high-impedance analog input nodes, pour a small analog ground island connected to VSS at a single point to reduce ground-loop noise.
Do not confuse PIC24F16KM202 with PIC24F16KL402: the KM202 includes integrated op amp and 8-bit DAC, while KL402 omits these peripherals, so switching between them requires firmware changes for analog handling. Ensure MCLR is pulled up via a 10 kohm resistor and bypass capacitor to ensure clean reset; an un-bypassed MCLR can latch in reset under noisy power-up. When using ICSP, share ICSPDAT/ICSPCLK pins (RB7/RB6) cautiously - they are dedicated in 28-SSOP but may be remapped on other package variants.
For high-speed SPI at 8 MHz or above, add a 33 ohm series-termination resistor at the SCK driver to suppress ringing. On I2C buses above 400 kHz, use external 4.7 kohm pull-ups (the internal weak pull-ups are too weak for fast mode). UART baud-rate mismatch from clock drift typically stays below 1% with the internal 8 MHz FRC, but enable PLL or external crystal for RS-485 half-duplex timing.
Compliance Information
RoHS and lead-free per Microchip product page. AEC-Q100 not applicable since this is a general-purpose industrial grade (-40C to +85C); automotive-qualified drop-in variants would be the PIC24F16KM202T-I/SS equivalent with explicit Q-suffix. Halogen-free status not specifically confirmed in the provided data.
