PIC24F08KM204-I/ML - 16-bit MCU, 8KB Flash, 32MHz, 44-QFN | XLP
MPN: PIC24F08KM204-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.62 | $3.62 |
| 10 | $3.25 | $32.50 |
| 100 | $2.89 | $289.00 |
| 500 | $2.58 | $1,290.00 |
| 1,000 | $2.31 | $2,310.00 |
PIC24F08KM204-I/ML Overview
A PIC microcontroller (Peripheral Interface Controller) is a class of microcontroller built on a Harvard architecture with separate program and data buses, well-suited for embedded control where deterministic interrupt response and low power consumption are essential. Within the broader taxonomy, this part sits as: 16-bit MCU -> PIC24 -> dsPIC/PIC24F family -> Microchip 8/16-bit MCU portfolio -> microcontroller -> embedded IC. XLP technology further categorizes this part within Microchip's nanoWatt XLP lineup targeting battery-powered and energy-harvesting designs where sleep current is critical.
Key features of the PIC24F08KM204-I/ML include: integrated 12-bit A/D converter with up to 16 input channels, dual 8-bit Digital-to-Analog converters for bias generation, operational amplifiers for signal conditioning, configurable logic cells (CLC) for hardware state-machine implementation, multiple Capture/Compare/PWM (CCP) modules for motor or lighting control, and a 16-bit PIC24F core executing at up to 32 MIPS (million instructions per second). The device also offers UART, SPI, and I2C serial interfaces for inter-MCU communication, plus a real-time clock and calendar (RTCC) module with calendar alarm support.
Architecturally, the PIC24F08KM204 employs a 16-bit modified Harvard core with single-cycle hardware multiply and divide, a 16-element working register array, and a 24-bit instruction word optimized for C code density. The integrated op amps and DACs power the silicon to function as a mixed-signal front-end, reducing external analog circuitry in sensor-conditioning applications. XLP nanoWatt technology delivers typical sleep currents in the microampere range, with multiple deep-sleep modes that retain RAM but halt the core, ideal for battery-powered sensor endpoints.
Typical applications include IoT sensor nodes with on-chip analog signal conditioning, low-power wireless sensor networks, battery-powered medical monitoring devices such as glucose meters or pulse oximeters, consumer products requiring touch/proximity sensing, industrial process transmitters with 4-20 mA loop output, and remote controls or human-interface devices. The wide 1.8V to 5.5V operating range also enables direct connection to single-cell Li-ion, two-cell alkaline, or USB-powered rails.
When designing with this device, pay attention to the exposed thermal pad (EP) layout for proper heat dissipation, place 0.1 µF and 1 µF decoupling capacitors close to each power pin, and configure the unused pins as outputs low to minimize current leakage. The 44-QFN package requires careful PCB land pattern design with adequate via stitching under the EP for thermal and electrical performance.
Drop-in alternatives for PIC24F08KM204-I/ML — 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 PIC24F08KM204-I/ML (same form factor and footprint) — differing in Package, Core Architecture, ADC, DAC, Comparators.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F08KM204-E/ML
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC24F08KM202-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24F08KM102-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24F16KM204-I/ML
✅ Drop-In✓ In Stock
$1.97 / Unit
View Datasheet →PIC24FJ64GA002-I/ML
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →PIC24F08KM204-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 16-bit (modified Harvard) |
| Series | PIC® XLP™ 24F |
| Program Memory (Flash) | 8 KB (2.75K x 24 words) |
| Data RAM | 2 KB |
| EEPROM | 512 bytes |
| Maximum CPU Speed | 32 MHz (32 MIPS) |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Operating Temperature Range | -40 °C to +85 °C (Industrial) |
| Package Type | 44-pin QFN (8x8 mm) with Exposed Pad |
| Mounting Type | Surface Mount |
| ADC | 12-bit, up to 16 channels |
| DAC | Dual 8-bit DAC |
| Op Amps | Integrated operational amplifiers |
| Configurable Logic Cell (CLC) | Yes |
| Capture/Compare/PWM (CCP) | Multiple modules |
| Serial Interfaces | UART, SPI, I2C |
| RTCC | Real-Time Clock/Calendar with alarm |
| Low-Power Technology | XLP nanoWatt |
| RoHS Status | Compliant |
PIC24F08KM204-I/ML Pin Configuration
| Pin 1 | RB9 — I/O port B bit 9 / analog input AN11 |
| Pin 2 | RB10 — I/O port B bit 10 / analog input AN10 |
| Pin 3 | RB11 — I/O port B bit 11 |
| Pin 4 | RB12 — I/O port B bit 12 |
| Pin 5 | RB13 — I/O port B bit 13 |
| Pin 6 | RB14 — I/O port B bit 14 |
| Pin 7 | RB15 — I/O port B bit 15 |
| Pin 8 | VDD — Positive supply voltage |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RA0 — I/O port A bit 0 / AN0 |
| Pin 11 | RA1 — I/O port A bit 1 / AN1 |
| Pin 12 | RA2 — I/O port A bit 2 / AN2 / DAC1OUT |
| Pin 13 | RA3 — I/O port A bit 3 / AN3 / DAC2OUT |
| Pin 14 | RA4 — I/O port A bit 4 / AN4 |
| Pin 15 | RA5 — I/O port A bit 5 / AN5 |
| Pin 16 | RA6 — I/O port A bit 6 / OCV1UT1 |
| Pin 17 | RA7 — I/O port A bit 7 |
| Pin 18 | AVDD — Analog positive supply |
| Pin 19 | AVSS — Analog ground |
| Pin 20 | RC0 — I/O port C bit 0 |
| Pin 21 | RC1 — I/O port C bit 1 |
| Pin 22 | RC2 — I/O port C bit 2 |
| Pin 23 | RC3 — I/O port C bit 3 |
| Pin 24 | RC4 — I/O port C bit 4 |
| Pin 25 | RC5 — I/O port C bit 5 |
| Pin 26 | RC6 — I/O port C bit 6 |
| Pin 27 | RC7 — I/O port C bit 7 |
| Pin 28 | RC8 — I/O port C bit 8 |
| Pin 29 | RC9 — I/O port C bit 9 |
| Pin 30 | OSC1 — Crystal oscillator input / CLKI |
| Pin 31 | OSC2 — Crystal oscillator output / CLKO |
| Pin 32 | PGED2 — Programming data I/O |
| Pin 33 | PGEC2 — Programming clock input |
| Pin 34 | MCLR — Master clear reset input (active low) |
| Pin 35 | PGED1 — Programming data I/O / ICD |
| Pin 36 | PGEC1 — Programming clock input / ICC |
| Pin 37 | RB0 — I/O port B bit 0 / AN8 / PGED3 |
| Pin 38 | RB1 — I/O port B bit 1 / AN9 / PGEC3 |
| Pin 39 | RB2 — I/O port B bit 2 |
| Pin 40 | RB3 — I/O port B bit 3 |
| Pin 41 | RB4 — I/O port B bit 4 |
| Pin 42 | RB5 — I/O port B bit 5 |
| Pin 43 | RB6 — I/O port B bit 6 |
| Pin 44 | RB7 — I/O port B bit 7 |
| Pin EP | EP — Exposed thermal pad - connect to VSS |
Typical Applications
PIC24F08KM204-I/ML is suitable for 6 applications: IoT Wireless Sensor Nodes, Battery-Powered Medical Monitoring Devices, Industrial Process Transmitters (4-20 mA Loop), Consumer Touch & Human-Interface Products, Low-Power Motor Control (Fans, Pumps, Small BLDC), Remote Controls & Wireless Key Fobs.
IoT Wireless Sensor Nodes
The PIC24F08KM204-I/ML is purpose-built for battery-powered IoT sensor endpoints where eXtreme Low Power (XLP) nanoWatt technology keeps average sleep current in the microampere range while periodic sensor readings wake the core. The integrated 12-bit ADC samples analog sensor signals (temperature, pressure, humidity) directly, while the dual 8-bit DACs and op amps power on-chip signal conditioning before radio transmission. The 8 KB Flash holds a wireless protocol stack such as LoRaWAN or BLE beaconing logic; the 32 MHz core executes at 32 MIPS, sufficient for AES-128 encryption of transmitted packets. Operating from 1.8 V to 5.5 V lets the same PCB run from a CR2032 coin cell, two AA batteries, or a USB rail. The 44-QFN package (8x8 mm) provides a compact footprint for coin-cell-sized sensor modules.
Recommended
Battery-Powered Medical Monitoring Devices
The PIC24F08KM204-I/ML powers portable medical monitoring equipment such as pulse oximeters, glucose meters, and patient-worn activity trackers, where its XLP nanoWatt technology extends battery life to patient-friendly multi-month runtime. The integrated op amps amplify photodiode or electrochemical sensor signals directly on-chip, eliminating external instrumentation amplifiers and reducing BOM cost. The 12-bit ADC provides adequate resolution for SpO2 or blood-glucose trend logging, while the dual 8-bit DACs can drive LCD contrast voltage or haptic-feedback motor control. The 1.8 V to 5.5 V VDD range accepts a single Li-ion cell or two alkaline cells, and the -40 °C to +85 °C industrial temperature range covers typical at-home and clinical environments. RTCC with calendar alarm enables scheduled measurement reminders without waking the CPU.
Recommended
Industrial Process Transmitters (4-20 mA Loop)
The PIC24F08KM204-I/ML drives 4-20 mA current-loop industrial process transmitters where its wide 1.8 V to 5.5 V VDD range accommodates loop-powered designs and its analog-rich peripherals handle sensor linearization on the same die. The integrated op amps condition bridge-type pressure or flow sensor signals directly, while the dual 8-bit DACs generate the 4-20 mA loop current via a current-output stage. The 12-bit ADC samples the sensor with adequate resolution for industrial accuracy, and the configurable logic cells (CLC) implement hardware linearization without CPU overhead. The 32 MIPS core computes polynomial compensation and HART protocol framing if needed. The 44-QFN package with exposed thermal pad enables operation in -40 °C to +85 °C industrial field environments without active cooling.
Recommended
Consumer Touch & Human-Interface Products
The PIC24F08KM204-I/ML enables compact consumer devices such as remote controls, e-reader front panels, and home-automation keypads where integrated op amps and configurable logic cells (CLC) replace several external components. The 12-bit ADC reads capacitive-touch sensors via the on-chip Charge Time Measurement Unit (CTMU), enabling 16-key touch pads without a dedicated touch controller IC. The CLC peripheral implements button debouncing, rotary-encoder quadrature decoding, and PWM-driven LED feedback in hardware, freeing the CPU for BLE or Zigbee stack handling. The dual 8-bit DACs generate audio cues or motor-control signals for haptic feedback. With 8 KB Flash and 2 KB RAM, the device runs BLE beacon stacks or IR-protocol transmit routines, all in a 44-QFN footprint suitable for slim consumer enclosures.
Recommended
Low-Power Motor Control (Fans, Pumps, Small BLDC)
The PIC24F08KM204-I/ML drives small brushed or sensorless BLDC motors in fans, pumps, and small appliance applications where its Capture/Compare/PWM (CCP) modules generate center-aligned switching waveforms up to 32 MIPS core speed. The integrated op amps amplify back-EMF sensing from motor windings for sensorless commutation, and the 12-bit ADC samples phase currents at rates up to 200 ksps for closed-loop current control. The configurable logic cells implement hardware fault-detection (overcurrent, stall) that trips PWM shutdown within microseconds. The dual 8-bit DACs generate reference voltages for current-loop control loops, reducing external analog components. Operating from 2.0 V to 5.5 V, the device powers from a 3.3 V or 5 V regulated supply, and the -40 °C to +85 °C industrial range supports motor bay environments.
Recommended
Remote Controls & Wireless Key Fobs
The PIC24F08KM204-I/ML powers automotive key fobs, garage-door openers, and TV remote controls where the XLP nanoWatt technology enables multi-year battery life on a single CR2032 coin cell. Sleep current in the deep-sleep modes is in the nanoampere range, while the 32 MHz core wakes in microseconds on a button-press interrupt. The integrated op amps amplify the sub-GHz or IR transmitter output stage directly, and the 12-bit ADC reads battery voltage for low-battery warning. The 8 KB Flash holds rolling-code encryption algorithms for automotive key fobs, and the Configurable Logic Cell (CLC) generates timing-accurate transmit pulse trains without CPU intervention. The 44-QFN (8x8 mm) package is compact enough for key-fob enclosures.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F08KM204-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F08KM204-E/ML | PIC24F08KM202-I/ML | PIC24F08KM102-I/ML | PIC24F16KM204-I/ML | PIC24FJ64GA002-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8 mm) with EP | 44-QFN (8x8 mm) with EP - same | 44-QFN (8x8 mm) with EP - same | 44-QFN (8x8 mm) with EP - same | 44-QFN (8x8 mm) with EP - same | 44-QFN (8x8 mm) with EP - same |
| Flash Memory | 8 KB | 8 KB | 8 KB | 8 KB | 16 KB | 64 KB |
| RAM | 2 KB | 2 KB | 2 KB | 1 KB | 2 KB | 8 KB |
| CPU Speed | 32 MHz / 32 MIPS | 32 MHz / 32 MIPS | 32 MHz / 32 MIPS | 32 MHz / 32 MIPS | 32 MHz / 32 MIPS | 32 MHz / 32 MIPS |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 2.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Integrated Op Amps | Yes | Yes | Reduced / single | Reduced | Yes | No |
| DAC Channels | Dual 8-bit | Dual 8-bit | Single 8-bit | Single 8-bit | Dual 8-bit | None |
| USB 2.0 Support | No | No | No | No | No | Yes (Full Speed) |
Key Differentiators
- Analog-rich integration with op amps and dual DACs (vs PIC24FJ64GA002-I/ML)
- 1.8 V to 5.5 V wide VDD range with XLP nanoWatt (vs PIC24FJ64GA002-I/ML)
- Extended temperature grade option in same package (vs PIC24F08KM204-I/ML)
Design Notes
Place a 0.1 µF ceramic decoupling capacitor within 2 mm of each VDD/AVDD pin and a bulk 1 µF to 10 µF capacitor at the package supply entry. Decouple AVSS separately from VSS if the analog peripherals (ADC, DAC, op amps) are active — connect AVSS to VSS at a single star-ground point to avoid ground-bounce noise coupling into ADC conversions. Use an LDO such as MCP1700 for clean analog supply rail when driving 12-bit ADC at full 200 ksps rate.
The 44-QFN exposed thermal pad (EP) MUST be soldered to the PCB ground plane to meet datasheet thermal resistance ratings. Use a via array (4 to 9 thermal vias, 0.3 mm drill) under the EP down to an inner ground plane to spread heat and provide low-inductance ground. Without proper EP soldering, junction temperature can rise 15-20 °C higher than rated, potentially triggering thermal shutdown under full 32 MHz operation with all peripherals active.
Route the crystal oscillator traces (OSC1/OSC2) as short as possible, surrounded by a guard ring connected to VSS, and place the load capacitors within 3 mm of the OSC pins. Keep analog signal traces (AN0-AN15) away from digital switching lines such as PWM outputs and clock traces to minimize ADC crosstalk. Use a 4-layer PCB with continuous ground plane for best noise immunity on the 12-bit ADC.
Do not leave unused I/O pins floating — configure them as outputs driving low to minimize leakage current that destroys the nanoWatt sleep-current budget. When using the ICSP programming pins (PGED1/PGEC1) for in-circuit debugging, add 4.7 kΩ series resistors to isolate them from application circuitry during programming, otherwise the debug session can fail on noisy boards. Ensure MCLR pin has a 10 kΩ pull-up to VDD per datasheet recommendations.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial -40 to +85C temperature grade only; for AEC-Q100 automotive qualification, choose the PIC24F08KM204-E/ML extended temperature grade variant or contact Microchip for automotive-grade part numbers.