PIC24F08KL401-I/P - 16-bit 32MHz 8KB Flash MCU | Microchip DIP-20
MPN: PIC24F08KL401-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.98 | $1.98 |
| 10 | $1.78 | $17.80 |
| 100 | $1.49 | $149.00 |
| 500 | $1.29 | $645.00 |
| 1,000 | $1.12 | $1,120.00 |
PIC24F08KL401-I/P Overview
A PIC microcontroller (MCU) is a compact programmable processor that integrates CPU, Flash program memory, SRAM data memory, and peripherals such as timers, ADCs, and communication interfaces into a single silicon die. Within the broader taxonomy, PIC24F devices are 16-bit modified Harvard microcontrollers that sit between 8-bit PIC18 parts and 32-bit PIC32MM devices, and they belong to the wider class of embedded microcontrollers, semiconductors, and integrated circuits used for real-time control. The KL4 sub-family adds dedicated low-power peripherals (RTCC, deep sleep, ultra-low-power wake-up) to support battery-powered designs.
Key features of the PIC24F08KL401 include: 8 KB self-programmable flash with program flash visibility, 1 KB SRAM, 512 bytes of EEPROM-like data EEPROM emulation, a 10-bit A/D converter with up to 12 channels, an analog comparator, a Charge Time Measurement Unit (CTMU), and an RTCC. Communication peripherals include MSSP supporting both I2C and SPI, plus a UART with LIN support and IrDA. Capture/Compare/PWM modules include CCP and Enhanced CCP (ECCP) for motor-control PWM. The KL4 family also features Peripheral Pin Select (PPS) for flexible signal routing.
Typical applications include cost-sensitive consumer electronics, low-power battery-powered sensor nodes, home appliances and white goods, LED lighting controllers, small motor-control subsystems, and industrial control boards that require 16-bit performance at 8-bit cost. Designers migrating from PIC18F benefit from code and peripheral compatibility while gaining 16-bit arithmetic and DSP-friendly instruction set features. The 32 MHz operation delivers up to 16 MIPS, sufficient for simple closed-loop control and signal processing.
When designing with the PIC24F08KL401-I/P, ensure the chosen debug tool supports the device ID (such as PICkit 3/4, MPLAB ICD 4, or MPLAB Snap). Configure unused pins as digital outputs and disable unused peripherals in firmware to achieve nanoWatt XLP sleep currents in the sub-microamp range. This page synthesizes distributor pricing, drop-in package alternatives, and design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24F08KL401-I/P — 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 PIC24F08KL401-I/P (same form factor and footprint) — differing in Package, Timers, ADC, Program Memory (Flash), I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F08KL401-E/P
✅ Drop-In✓ In Stock
$2.12 / Unit
View Datasheet →PIC24F08KL301-I/P
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.12 / Unit
View Datasheet →PIC24F08KL301-E/P
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.55 / Unit
View Datasheet →PIC24F08KA101-I/P
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.45 / Unit
View Datasheet →PIC24F04KL101-I/P
✅ Drop-In✓ In Stock
$0.76 / Unit
View Datasheet →PIC24F04KL101-E/P
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24F08KL401-I/P Maximum Ratings & Electrical Characteristics
| Manufacturer | Microchip Technology |
| Series | PIC XLP 24F |
| Core | PIC24F (16-bit modified Harvard) |
| Program Memory (Flash) | 8 KB (2.75K x 24 instructions) |
| Data Memory (SRAM) | 1 KB |
| Data EEPROM Emulation | 512 B |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage | 1.8 V to 3.6 V |
| ADC | 10-bit, up to 12 channels |
| Timers | Multiple 16-bit Timer/Counter modules |
| Communication | I2C, SPI, UART (LIN/IrDA capable) |
| PWM | CCP and Enhanced CCP (ECCP) |
| RTCC | Yes (Real-Time Clock/Calendar) |
| CTMU | Yes (Charge Time Measurement Unit) |
| Peripheral Pin Select (PPS) | Yes |
| Package | 20-pin PDIP (DIP-20, 0.300 inch) |
| Operating Temperature | -40C to +85C (Industrial) |
| RoHS Status | Compliant |
PIC24F08KL401-I/P Pin Configuration
| Pin 1 | RA0 — I/O port A bit 0 (AN0 / CVREF+) |
| Pin 2 | RA1 — I/O port A bit 1 (AN1 / CVREF-) |
| Pin 3 | RA2 — I/O port A bit 2 (AN2 / VREF-) |
| Pin 4 | RA3 — I/O port A bit 3 (AN3 / VREF+) |
| Pin 5 | RA4 — I/O port A bit 4 (SOSCI) |
| Pin 6 | RA5 — I/O port A bit 5 (SOSCO) |
| Pin 7 | RA6 — I/O port A bit 6 (OSC2 / CLKO) |
| Pin 8 | RA7 — I/O port A bit 7 (OSC1 / CLKI) |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 11 | RB0 — I/O port B bit 0 (AN12) |
| Pin 12 | RB1 — I/O port B bit 1 (AN10) |
| Pin 13 | RB2 — I/O port B bit 2 (AN8) |
| Pin 14 | RB3 — I/O port B bit 3 (AN9) |
| Pin 15 | RB4 — I/O port B bit 4 (AN11) |
| Pin 16 | RB5 — I/O port B bit 5 (AN13) |
| Pin 17 | RB6 — I/O port B bit 6 (PGEC ICD / programming) |
| Pin 18 | RB7 — I/O port B bit 7 (PGED ICD / programming) |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
Typical Applications
PIC24F08KL401-I/P is suitable for 6 applications: Battery-Powered Sensor Nodes, Home Appliance Control, LED Lighting Controllers, Small Motor Control, Industrial Sensor Interfaces, Consumer Remote Controls and IR Toys.
Battery-Powered Sensor Nodes
The PIC24F08KL401-I/P fits battery-powered wireless sensor nodes because its nanoWatt XLP architecture delivers sub-microamp deep-sleep currents that preserve coin-cell or 2xAA life across months of standby. The 10-bit ADC with up to 12 channels, plus the CTMU for capacitive touch or temperature sensing, provides direct sensor interfacing without external components. The 8 KB Flash holds typical BLE/Zigbee host firmware stacks and sensor drivers, while 1 KB SRAM suffices for short data buffers. The KL4 sub-family also supports Peripheral Pin Select, which lets designers remap UART/I2C/SPI to free pins for compact sensor boards. Operated at 32 MHz only when transmitting or sampling, this part achieves years of battery life in periodic-reporting IoT designs.
Recommended
Home Appliance Control
The PIC24F08KL401-I/P is well suited to home appliance white-goods controllers, including coffee machines, washing machines, dishwashers, and microwave user-interface boards. Its 16-bit core at 32 MHz comfortably handles capacitive-touch firmware (via CTMU), rotary encoder polling, and LED segment driving. The MSSP supports I2C for sensor and display expansion, while the UART with LIN support can interface with inverter or motor-control sub-modules. Industrial temperature grade (-40C to +85C) supports kitchen environments with thermal stress. The 20-pin PDIP package simplifies hand-soldering during prototyping and field-repair workflows. With 8 KB Flash, firmware fits user-interface state machines plus basic motor-control logic without external memory.
Recommended
LED Lighting Controllers
The PIC24F08KL401-I/P serves cost-sensitive LED lighting controllers where low standby power and 16-bit PWM resolution are required. The Enhanced CCP module generates multiple PWM channels at up to 32 MHz for smooth dimming and color-mixing control of RGBW fixtures. The 10-bit ADC supports ambient-light sensor feedback for daylight harvesting, while the MSSP drives LED driver ICs via SPI or I2C. Industrial temperature grade handles fixture thermal rise at high drive currents. Combined with the KL4 family's nanoWatt XLP, the part achieves standby power below 100 mW for compliance with energy-saving regulations. The DIP-20 package suits through-hole designs in retrofit lamp drivers and ceiling fixture controllers.
Recommended
Small Motor Control
The PIC24F08KL401-I/P drives low-power DC, stepper, and BLDC motors in compact appliances, fans, pumps, and toys. The Enhanced CCP module produces 3-phase complementary PWM at up to 32 MHz for sensorless or Hall-sensor BLDC commutation, while CCP provides general-purpose timing. The 10-bit ADC reads back current shunt amplifiers and Hall sensors for closed-loop control. At 16 MIPS, simple FOC and trapezoidal commutation algorithms run in real time. The 8 KB Flash holds typical sensorless BLDC reference firmware and PID controllers. The 20-pin PDIP supports through-hole prototyping of motor-driver boards.
Recommended
Industrial Sensor Interfaces
The PIC24F08KL401-I/P works well as a low-power industrial front-end for sensor conditioning, calibration, and protocol bridging. The MSSP supports I2C and SPI for direct sensor interface (temperature, pressure, flow, gas), while the UART adds RS-232, RS-485, or LIN industrial bus connectivity. The RTCC enables scheduled logging and timestamping in unattended data loggers. The 10-bit ADC samples analog 4-20 mA or 0-10 V industrial signals after external scaling. Industrial temperature range supports factory-floor deployment. The 32 MHz MIPS performance allows on-the-fly linearization and digital filtering in firmware.
Recommended
Consumer Remote Controls and IR Toys
The PIC24F08KL401-I/P fits consumer remote controls, learning thermostats, and IR-controlled toys due to its low cost, small footprint, and low standby power. The CCP module generates IR carrier modulation for NEC, RC5, or proprietary IR protocols without external timer ICs. The MSSP and UART support wireless add-on modules, while the 10-bit ADC reads battery voltage for low-battery detection. nanoWatt XLP keeps idle current in nanoamps for shelf life measured in years on AAA cells. The DIP-20 package works for hand-soldered prototypes and small-run manufacturing.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F08KL401-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F08KL401-E/P | PIC24F08KL301-I/P | PIC24F08KA101-I/P | PIC24F04KL101-I/P |
|---|---|---|---|---|---|
| Package | 20-pin PDIP (DIP-20) | 20-pin PDIP (DIP-20) - same | 20-pin PDIP (DIP-20) - same | 20-pin PDIP (DIP-20) - same | 20-pin PDIP (DIP-20) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 8 KB | 8 KB | 8 KB | 8 KB | 4 KB |
| SRAM | 1 KB | 1 KB | 768 B | 1 KB | 1 KB |
| Data EEPROM | 512 B | 512 B | 512 B | 512 B | 512 B |
| Max CPU Speed | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) |
| 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 |
| Temperature Grade | Industrial -40 to +85 C | Extended -40 to +125 C | Industrial -40 to +85 C | Industrial -40 to +85 C | Industrial -40 to +85 C |
Key Differentiators
- nanoWatt XLP deep-sleep current well under 1 uA (vs PIC24F08KA101-I/P)
- Industry-leading 16 MIPS at 1.8 V with 8 KB Flash (vs PIC24F04KL101-I/P)
- Industrial temperature range, exact commercial successor (vs PIC24F08KL401-E/P)
Design Notes
Place a 100 nF decoupling capacitor within 5 mm of each VDD pin (pins 10 and 20) to suppress switching noise. For battery-powered designs operating from 2xAA cells, add a 10 uF bulk capacitor at the supply rail to handle peak transmit currents from companion radio modules. Estimated: total quiescent current at 1.8 V in Deep Sleep mode is well under 1 uA per the datasheet, enabling years of standby on 2xAA alkaline cells.
For through-hole PDIP-20 designs, route the ICSP pins RB6 (PGEC) and RB7 (PGED) to a 6-pin in-circuit programming header with dedicated signals (no series resistors in ICSP paths). Use a ground plane on the bottom layer to provide a low-impedance return for high-frequency digital edges. Keep analog input traces short and away from PWM outputs to minimize ADC noise coupling; the ADC conversion is 10-bit and noise-sensitive.
Do not leave unused I/O pins floating; configure them as digital outputs and drive low in firmware to prevent shoot-through and noise injection. The CLKI/OSC1 pin (RA7) must be terminated with a proper crystal load capacitor if used, otherwise oscillator start-up fails at low VDD. Estimated: total peripheral interrupt vectoring overhead is roughly 4 cycles per ISR entry - keep ISRs short and use the RTCC for periodic wake to minimize time spent in active mode.
Compliance Information
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified - choose PIC24F08KA101-E/P or AEC-Q100 variants for automotive. Halogen-free per Microchip environmental certification.
