PIC24F08KL301-I/MQ - 16-Bit 32MHz 8KB Flash MCU | Microchip
MPN: PIC24F08KL301-I/MQ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.34 | $3.34 |
| 10 | $2.99 | $29.90 |
| 100 | $2.65 | $265.00 |
| 500 | $2.35 | $1,175.00 |
| 1,000 | $2.1 | $2,100.00 |
PIC24F08KL301-I/MQ Overview
A 16-bit PIC microcontroller (MCU) is a single-chip computer that uses a 16-bit data path and instruction word, sitting between 8-bit MCUs (e.g., PIC16/PIC18) and 32-bit ARM Cortex-M devices in the Microchip taxonomy: MCU -> 16-bit MCU -> PIC24 -> PIC24F (Flash, low-power). The PIC24F sub-family emphasizes low power via nanoWatt XLP technology, supporting sleep currents in the nanoamp range and multiple power-saving modes such as Deep Sleep, Sleep, Idle, and Doze. The KL-series in particular balances low cost with low power, migrating legacy PIC18 peripherals (MSSP, CCP/ECCP, 10-bit ADC) to a 16-bit core.
Key features of the PIC24F08KL301-I/MQ include 8KB Flash (2.75K x 24 instruction words), 1KB SRAM, 256 bytes of EEPROM-like data Flash, 4-channel 10-bit ADC, two analog comparators, two I2C/SPI MSSP modules, one UART, and three 16-bit timers. The nanoWatt XLP technology provides a typical Deep Sleep current below 200 nA with RTCC and SRAM retention, enabling multi-year battery life in sensor and metering applications.
Typical applications for the PIC24F08KL301-I/MQ include low-cost IoT sensor nodes, battery-powered consumer electronics, portable medical devices, and low-power industrial controllers where the 16-bit performance is needed but budgets cannot accommodate a 32-bit ARM MCU.
Drop-in alternatives for PIC24F08KL301-I/MQ — 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 PIC24F08KL301-I/MQ (same form factor and footprint) — differing in Package, ADC, Core Architecture, Program Memory (Flash), I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F08KL201-I/MQ
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC24F04KL101-I/MQ
✅ Drop-In✓ In Stock
$0.098 / Unit
View Datasheet →PIC24F08KL201T-I/MQ
✅ Drop-In✓ In Stock
$1.78 / Unit
View Datasheet →PIC24F04KL101T-I/MQ
✅ Drop-In✓ In Stock
$0.93 / Unit
View Datasheet →PIC24F08KL301-E/MQ
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24F08KL301-I/MQ Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F 16-bit modified Harvard |
| Program Memory (Flash) | 8 KB (2.75K x 24 instruction words) |
| Data SRAM | 1 KB |
| Data EEPROM (Data Flash) | 256 B |
| Maximum CPU Clock | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 17 |
| Package | 20-VQFN (5x5 mm) |
| ADC | 10-bit, up to 12 channels |
| Comparators | 2 |
| MSSP (I2C/SPI) | 2 modules |
| UART | 1 |
| Timers (16-bit) | 3 |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| Low-Power Technology | nanoWatt XLP (Deep Sleep < 200 nA typical with RTCC) |
| RoHS Status | Compliant |
PIC24F08KL301-I/MQ Pin Configuration
| Pin 1 | MCLR/RA5 — Master Clear (reset) input or general I/O RA5 |
| Pin 2 | RA0 — General purpose I/O / analog input AN0 |
| Pin 3 | RA1 — General purpose I/O / analog input AN1 |
| Pin 4 | RB0 — General purpose I/O RB0 |
| Pin 5 | RB1 — General purpose I/O RB1 |
| Pin 6 | RB2 — General purpose I/O RB2 |
| Pin 7 | RB3 — General purpose I/O RB3 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA2 — General purpose I/O / analog input AN2 |
| Pin 10 | RA3 — General purpose I/O / analog input AN3 |
| Pin 11 | RA4 — General purpose I/O / analog input AN4 |
| Pin 12 | RB4 — General purpose I/O RB4 |
| Pin 13 | RB5 — General purpose I/O RB5 |
| Pin 14 | RB6 — General purpose I/O / programming clock ICSPCLK |
| Pin 15 | RB7 — General purpose I/O / programming data ICSPDAT |
| Pin 16 | RA6 — General purpose I/O / oscillator input |
| Pin 17 | RA7 — General purpose I/O / oscillator output |
| Pin 18 | VCAP — External filter capacitor for internal voltage regulator |
| Pin 19 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 20 | VSS — Ground reference (bottom thermal pad) |
Typical Applications
PIC24F08KL301-I/MQ is suitable for 6 applications: Battery-Powered IoT Sensor Node, Portable Consumer Electronics, Low-Power Industrial Sensor Transmitter, Smart Home Control Panel, Portable Medical Monitoring Device, Automotive Interior Accessory Module.
Battery-Powered IoT Sensor Node
The PIC24F08KL301-I/MQ is well suited to coin-cell-powered IoT sensor nodes because its nanoWatt XLP technology achieves typical Deep Sleep current below 200 nA with RTCC and SRAM retained, while 32 MHz operation delivers enough MIPS to compress sensor data locally before transmitting. The 8KB Flash accommodates over-the-air firmware update bootloaders, 1KB SRAM buffers sensor samples between wake events, and the 17 I/O pins support multiple analog and digital sensors. Engineers typically connect a 10k thermistor to a 10-bit ADC channel, wake the MCU every 30 seconds via RTCC, average readings, and transmit via an external radio on the MSSP SPI bus. The 1.8V to 3.6V VDD range allows direct CR2032 operation without a boost regulator, simplifying BOM and extending battery life to years per typical Microchip XLP energy budget calculations.
Recommended
Portable Consumer Electronics
In portable consumer products like wireless thermometers, fitness bands, and remote controls, the PIC24F08KL301-I/MQ's 16-bit core and 32 MHz speed handle UI tasks, button debouncing, and low-rate wireless protocols while drawing minimal quiescent current. The two MSSP modules can drive an SPI OLED display and an I2C sensor simultaneously, the 10-bit ADC supports up to 12 channels for multi-button capacitive touch via the comparators, and 8KB Flash holds the application plus a small bootloader. The 20-pin VQFN (5x5 mm) package fits inside thin plastic enclosures. Designers typically run the MCU at 8 MHz from the internal oscillator to reduce active current to about 2 mA, leveraging nanoWatt XLP Sleep between user interactions to extend AAA-battery life to 6-12 months per typical datasheet guidance.
Recommended
Low-Power Industrial Sensor Transmitter
Industrial 4-20 mA loop-powered or battery-backed sensor transmitters benefit from the PIC24F08KL301-I/MQ's combination of 16-bit math for linearization, 32 MHz CPU for fast PID loops, and nanoWatt XLP technology for sleep-mode efficiency. The device's 1.8V to 3.6V VDD range supports direct 3.3V regulated operation from 24V loop converters, the 17 I/O pins handle multiple sensor inputs and HART modem interfaces, and the 10-bit ADC with internal voltage reference reads calibrated transducers. The 20-pin VQFN package is small enough to fit in standard sensor head enclosures. Engineers use the MSSP I2C channel to connect EEPROM for calibration constants, the UART for HART or RS-485 communication, and the RTCC for timed wake-up between transmissions to achieve typical 10-year battery life on lithium thionyl chloride cells.
Recommended
Smart Home Control Panel
Smart home control panels and wall-mounted user interfaces often use the PIC24F08KL301-I/MQ as a cost-optimized user-interface controller offloading touch, LED driving, and button handling from a more expensive Wi-Fi processor. The 16-bit core responds to capacitive touch inputs from the on-chip comparators within microseconds, the MSSP SPI channel drives a small TFT or LED matrix display, and 8KB Flash holds the touch- and lighting-control firmware. The 1.8V to 3.6V operating range supports 3.3V regulator rails common in mains-powered home devices, while Deep Sleep current below 200 nA keeps standby power well below 0.5W ErP limits. The 20-pin VQFN (5x5 mm) fits behind narrow panel bezels, and the UART provides a debug console without consuming extra I/O pins.
Recommended
Portable Medical Monitoring Device
Portable medical devices such as pulse oximeters, glucose meters, and wearable ECG patches use the PIC24F08KL301-I/MQ because its nanoWatt XLP technology, deterministic 16-bit core, and FDA-friendly firmware architecture suit low-power, safety-critical designs. The 32 MHz MIPS handle oximetry plethysmograph waveform analysis in real time, the 10-bit ADC samples photodiode current at rates up to 100 kHz, and 8KB Flash holds both the application and a bootloader for field firmware updates. Operating voltage 1.8V to 3.6V supports direct coin-cell or single-cell Li-ion operation. Designers typically place the MCU in Sleep between sample bursts, waking on RTCC interrupt to take readings, achieving multi-day continuous monitoring per Microchip datasheet energy estimates. The 20-pin VQFN package is small enough for finger-clip or wrist-worn form factors.
Recommended
Automotive Interior Accessory Module
Automotive interior accessory modules like cabin air-quality sensors, ambient lighting controllers, and seat-occupancy detectors leverage the PIC24F08KL301-I/MQ for its industrial -40 to +85 C temperature range, LIN-compatible UART, and small 20-pin VQFN footprint. The 16-bit core runs LIN protocol stacks and PWM lighting sequences concurrently at 32 MHz, the MSSP handles SPI-connected motor drivers or LED drivers, and the 10-bit ADC reads multiple analog sensors. The 1.8V to 3.6V VDD range is compatible with 3.3V regulated supplies typical in body-control modules, while the MCU's low Deep Sleep current is critical for vehicles parked weeks at a time. Designers use the comparators for capacitive seat-occupancy detection, and the CCP/ECCP modules generate PWM for RGB ambient lighting without extra timer overhead.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F08KL301-I/MQ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F08KL201-I/MQ | PIC24F04KL101-I/MQ | PIC24F08KL201T-I/MQ |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-VQFN (5x5 mm) | 20-VQFN (5x5 mm) - same | 20-VQFN (5x5 mm) - same | 20-VQFN (5x5 mm) - same |
| Program Memory (Flash) | 8 KB | 8 KB | 4 KB (-50%) | 8 KB |
| Maximum CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply 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 |
| I/O Pins | 17 | 17 | 17 | 17 |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP |
Key Differentiators
- Largest SRAM in 8KB-Flash PIC24F KL-series VQFN-20 family (vs PIC24F08KL201-I/MQ)
- Drop-in upgrade from PIC24F04KL101-I/MQ with 2x program memory (vs PIC24F04KL101-I/MQ)
- nanoWatt XLP Deep Sleep current below 200 nA typical with RTCC (vs PIC24F08KL201T-I/MQ)
Design Notes
Estimated: power budget design should assume Deep Sleep current below 200 nA typical with RTCC and SRAM retained, and active current approximately 8 mA at 32 MHz / 3.3V per Microchip datasheet DS39996C. For a sensor node waking every 30 seconds for 10 ms, average current stays well under 5 uA, giving a CR2032 (220 mAh) approximately 5 years of life. Place a 10 uF bulk + 0.1 uF ceramic directly on VDD and VCAP pins.
Estimated: route the VQFN bottom thermal pad to a ground copper pour of at least 25 mm^2 for adequate heat spreading under industrial -40 to +85 C operation. Keep traces to VCAP (pin 18) under 5 mm to avoid regulator instability; place the 10 uF VCAP capacitor within 3 mm of the pin per Microchip datasheet DS39996C layout guidelines. Maintain continuous ground plane under the device to reduce EMI coupling into the analog ADC inputs.
A common pitfall is omitting the VCAP filter capacitor or using a value below the datasheet-recommended 10 uF minimum; without it, the internal 1.8V regulator will fail and the device will not start. Another frequent mistake is configuring MCLR as an I/O when it is needed for in-circuit serial programming (ICSP); always leave MCLR/RA5 accessible via a 10 kohm pull-up to VDD for ICSP. Finally, remember that PIC24F instruction words are 24 bits wide, so a Flash size of 8 KB equals 2.75K instructions, not 8K instructions as some legacy PIC users expect.
Estimated: route the ICSP clock and data lines (RB6/RB7, pins 14 and 15) away from high-frequency switching signals; an inline 4.7 kohm resistor on each line reduces programming crosstalk. Keep analog input traces short and surrounded by ground to preserve the 10-bit ADC accuracy; a 100 ohm series resistor at the analog pin with a 100 nF to ground forms a low-pass filter that suppresses RF interference on sensor lines. Reference Microchip datasheet DS39996C analog-design chapter for grounding recommendations.
Compliance Information
RoHS and REACH compliant per Microchip product page; lead-free and halogen-free. Industrial -40 to +85 C operating range; AEC-Q100 not qualified - select PIC24F16KLx02 automotive variants for vehicle applications.
