PIC24F08KM204-I/PT - 16-bit XLP MCU, 8KB Flash, 44-TQFP | Microchip
MPN: PIC24F08KM204-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.92 | $3.92 |
| 10 | $3.55 | $35.50 |
| 100 | $3.18 | $318.00 |
| 500 | $2.86 | $1,430.00 |
| 1,000 | $2.54 | $2,540.00 |
PIC24F08KM204-I/PT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals. The PIC24F is a 16-bit RISC family, occupying the middle ground between 8-bit PIC MCUs and 32-bit ARM Cortex devices - it offers deterministic MIPS execution, low sleep currents typical of XLP designs, and a mature MPLAB X toolchain. Within the broader taxonomy, PIC24F08KM204 belongs to: microcontroller -> 16-bit MCU -> PIC24F family -> KM sub-family (low-pin-count, integrated analog) -> embedded processing.
Key features include multiple low-power sleep modes, peripheral pin select for flexible I/O mapping, a 32 kHz secondary oscillator for RTC, and a CTMU (Charge Time Measurement Unit) for touch and capacitive sensing. The integrated op amps and comparators allow direct sensor signal conditioning without external analog ICs. The 44-TQFP footprint exposes up to 35 digital I/O pins, several 5V-tolerant inputs, and dedicated analog channels, making the device well-suited for compact mixed-signal designs.
Typical applications include battery-powered sensor nodes, handheld instruments, IoT edge devices, and consumer products where low quiescent current, integrated analog, and modest code size are required. The wide VDD range and rich peripheral set reduce external component count.
When designing with this MCU, allocate attention to decoupling (100 nF plus bulk capacitor at VDD/AVDD), unused-pin termination (configure as outputs or inputs with pull-ups), and ICD3/REAL ICE programming header layout for in-circuit debugging. Use the MSSP and UART modules for digital communication, and reserve the CLC for glue logic to reduce external gates.
This page synthesizes drop-in alternatives within the same TQFP-44 footprint, distributor pricing, and practical design notes not found in the manufacturer datasheet alone - enabling faster sourcing and design-in decisions for engineering teams.
Drop-in alternatives for PIC24F08KM204-I/PT — 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/PT (same form factor and footprint) — differing in Core Architecture, ADC, DAC, Program Memory (Flash), Maximum CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F16KM204-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.05 / Unit
View Datasheet →PIC24FV08KM204-I/PT
✅ Drop-In✓ In Stock
$1.94 / Unit
View Datasheet →PIC24F08KM204-I/ML
✅ Drop-In✓ In Stock
$2.31 / Unit
View Datasheet →PIC24F08KM204-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F 16-bit RISC CPU |
| Program Memory (Flash) | 8 KB (2.75K x 24 words) |
| Data SRAM | 2 KB |
| Maximum CPU Speed | 32 MIPS (at 32 MHz Fosc) |
| Operating Voltage (VDD) | 2.5 V or 3.3 V nominal (range per datasheet) |
| Operating Temperature | -40 C to +85 C (Industrial -I suffix) |
| Package | 44-pin TQFP (10x10 mm) |
| ADC | 12-bit, multi-channel |
| DAC | 8-bit |
| Integrated Op Amps | Yes (on-chip) |
| Comparators | Yes |
| Configurable Logic Cell (CLC) | Yes |
| PWM / CCP Modules | Multiple Capture/Compare/PWM |
| CTMU | Yes (touch / capacitive sensing) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC24F08KM204-I/PT Pin Configuration
| Pin 1 | RP5/RB5 — Remappable I/O / Port B bit 5 |
| Pin 2 | RP6/RB6 — Remappable I/O / Port B bit 6 |
| Pin 3 | RP7/RB7 — Remappable I/O / Port B bit 7 |
| Pin 4 | RP8/RB8 — Remappable I/O / Port B bit 8 |
| Pin 5 | VSS — Ground reference |
| Pin 6 | OSC1/RA1 — Oscillator input / Port A bit 1 |
| Pin 7 | OSC2/RA0 — Oscillator output / Port A bit 0 |
| Pin 8 | VCAP — External filter capacitor for internal LDO |
| Pin 9 | PGEC1 — In-circuit debug / programming clock |
| Pin 10 | PGED1 — In-circuit debug / programming data |
| Pin 11 | RP9/RB9 — Remappable I/O / Port B bit 9 |
| Pin 12 | RP10/RB10 — Remappable I/O / Port B bit 10 |
| Pin 13 | RP11/RB11 — Remappable I/O / Port B bit 11 |
| Pin 14 | VSS — Ground reference |
| Pin 15 | VDD — Positive supply voltage |
| Pin 16 | RP12/RB12 — Remappable I/O / Port B bit 12 |
| Pin 17 | RP13/RB13 — Remappable I/O / Port B bit 13 |
| Pin 18 | RP14/RB14 — Remappable I/O / Port B bit 14 |
| Pin 19 | RP15/RB15 — Remappable I/O / Port B bit 15 |
| Pin 20 | VSS — Ground reference |
| Pin 21 | VDD — Positive supply voltage |
| Pin 22 | SOSCI/RP4/RB4 — Secondary oscillator / remappable I/O |
| Pin 23 | SOSCO/RA4 — Secondary oscillator output / Port A bit 4 |
| Pin 24 | RA3 — Port A bit 3 |
| Pin 25 | RA2 — Port A bit 2 |
| Pin 26 | MCLR — Master Clear reset input |
| Pin 27 | AN0/CVREF/RA0 — Analog input 0 / CVREF output / Port A bit 0 |
| Pin 28 | AN1/RP0/RB0 — Analog input 1 / remappable I/O / Port B bit 0 |
| Pin 29 | AN2/RP1/RB1 — Analog input 2 / remappable I/O / Port B bit 1 |
| Pin 30 | AN3/RP2/RB2 — Analog input 3 / remappable I/O / Port B bit 2 |
| Pin 31 | AN4/RP3/RB3 — Analog input 4 / remappable I/O / Port B bit 3 |
| Pin 32 | AVSS — Analog ground reference |
| Pin 33 | AVDD — Analog positive supply voltage |
| Pin 34 | VREF+/AN5/RA5 — Voltage reference positive / Analog input 5 / Port A bit 5 |
| Pin 35 | VREF-/AN6/RA6 — Voltage reference negative / Analog input 6 / Port A bit 6 |
| Pin 36 | AN7/RA7 — Analog input 7 / Port A bit 7 |
| Pin 37 | RC1 — Port C bit 1 |
| Pin 38 | RC2 — Port C bit 2 |
| Pin 39 | RC3 — Port C bit 3 |
| Pin 40 | RC4 — Port C bit 4 |
| Pin 41 | RD0 — Port D bit 0 |
| Pin 42 | RD1 — Port D bit 1 |
| Pin 43 | RD2 — Port D bit 2 |
| Pin 44 | RD3 — Port D bit 3 |
Typical Applications
PIC24F08KM204-I/PT is suitable for 7 applications: Battery-Powered IoT Sensor Nodes, Handheld Medical Monitoring Devices, Consumer Appliance Control Panels, Portable Test and Measurement Instruments, Industrial Sensor Transmitters, Automotive Interior Accessories (Non-Safety), Touch-Sensitive User Interfaces.
Battery-Powered IoT Sensor Nodes
The PIC24F08KM204-I/PT's nanoWatt XLP technology delivers sleep currents below 1 uA, making it ideal for coin-cell or 2xAA powered wireless sensor nodes. The integrated 12-bit ADC, op amps, and CTMU module enable direct sensor interfacing without external analog ICs. Its 8KB Flash supports BLE/Zigbee stack fragments when paired with an external radio transceiver. Placed as the central MCU on the sensor PCB, it reduces BOM by eliminating dedicated temperature/analog front-end ICs.
Recommended
Handheld Medical Monitoring Devices
The PIC24F08KM204-I/PT's integrated 12-bit ADC and on-chip op amps suit handheld medical devices such as pulse oximeters and thermometers, where signal conditioning must coexist with low power consumption. The 32 MIPS performance provides real-time filtering of biosignals without external DSP. Operating from 3.3V, the part integrates cleanly with Li-ion battery management. Its industrial -40 C to +85 C temperature range supports clinical and home-healthcare environments.
Recommended
Consumer Appliance Control Panels
In consumer appliances such as washing machines, coffee makers, and air purifiers, the PIC24F08KM204-I/PT drives keypads, LED indicators, and motor control PWM channels while maintaining low standby power for Energy Star compliance. The integrated CLC module replaces discrete logic glue for sensor interlocks and timing functions. Its 44-TQFP footprint is well-suited to compact control boards where both digital I/O and analog sensing are required on a single die.
Recommended
Portable Test and Measurement Instruments
The PIC24F08KM204-I/PT's 32 MIPS CPU, 12-bit ADC, and integrated op amps deliver adequate signal processing for portable multimeters and basic oscilloscope probes. The on-chip op amp can buffer high-impedance probe signals before ADC sampling, while the comparator enables threshold detection with sub-microsecond response. Its XLP sleep modes extend battery runtime during standby, and the 44-TQFP package supports standard hand-held instrument form factors.
Recommended
Industrial Sensor Transmitters
In 4-20 mA loop-powered industrial sensor transmitters, the PIC24F08KM204-I/PT's low operating current and 12-bit ADC resolution enable accurate measurement of pressure, temperature, or flow signals. The integrated op amps and comparators handle sensor bridge excitation and threshold detection. Operating from 3.3V with the industrial -40 C to +85 C temperature range, it is qualified for factory automation and process control environments. The CLC module implements HART or similar protocol encoding in hardware.
Recommended
Automotive Interior Accessories (Non-Safety)
While not AEC-Q100 qualified, the PIC24F08KM204-I/PT is widely used in non-safety automotive interior accessories such as seat heaters, ambient lighting controllers, and USB charging hubs where the operating environment remains within industrial -40 C to +85 C. The integrated PWM modules drive LED dimming and motor speed control, while the 12-bit ADC reads temperature and current sensors. Designers should ensure supply transients are clamped externally since the MCU lacks automotive-grade qualification.
Recommended
Touch-Sensitive User Interfaces
The PIC24F08KM204-I/PT integrates the CTMU (Charge Time Measurement Unit), enabling capacitive touch sensing for buttons, sliders, and proximity detection without external touch controller ICs. Combined with its CLC and PWM peripherals, designers can build complete touch user interfaces for appliances, IoT devices, and consumer electronics. The on-chip op amp supports guard-ring shielding to improve touch sensitivity in noisy environments. With 8KB Flash and 2KB SRAM, firmware fits comfortably within the part's resources.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F08KM204-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F16KM204-I/PT | PIC24FV08KM204-I/PT | PIC24F08KM204-I/ML |
|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-QFN (8x8 mm) - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 8 KB | 16 KB | 8 KB | 8 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB |
| Maximum CPU Speed | 32 MIPS / 32 MHz | 32 MIPS / 32 MHz | 32 MIPS / 32 MHz | 32 MIPS / 32 MHz |
| Operating Voltage | 2.5V / 3.3V | 2.5V / 3.3V | 2.0V-5.5V (5V tolerant) | 2.5V / 3.3V |
| 12-bit ADC | Yes | Yes | Yes | Yes |
| Integrated Op Amps | Yes | Yes | Yes | Yes |
| XLP Sleep Current | nanoWatt (<1 uA typical) | nanoWatt (<1 uA typical) | nanoWatt (<1 uA typical) | nanoWatt (<1 uA typical) |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
Key Differentiators
- True nanoWatt XLP sleep current below 1 uA (vs PIC24FJ64GA002-I/ML)
- Integrated op amps and CTMU on-chip (vs PIC24EP32GP204-I/PT)
- Configurable Logic Cell (CLC) replaces discrete glue logic (vs PIC24F08KA102-I/ML)
Design Notes
Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pin pair, with a 4.7 uF or 10 uF bulk capacitor at the MCU supply input. The PIC24F08KM204-I/PT draws sub-microamp sleep currents when properly decoupled; poor decoupling will inflate this current. The VCAP pin (pin 8) requires a low-ESR 10 uF capacitor for internal voltage regulator stability - never leave it floating. Estimated: with 3.3V VDD at 32 MHz active, the core draws approximately 8 mA; in Sleep mode the part drops below 1 uA.
Route the PGEC1/PGED1 (pins 9, 10) traces as a matched-length pair to the in-circuit debugger header, with a series resistor or ferrite if long traces are required. Avoid routing analog signals (AN0-AN7, VREF+, VREF-) near digital switching lines to minimize ADC crosstalk. Keep the analog ground (AVSS, pin 32) and digital ground (VSS, pins 5, 14, 20) tied to a single star ground point beneath the MCU. The 44-TQFP package exposes the thermal pad to the die; copper pours under the package improve thermal dissipation.
Do not leave unused I/O pins floating - configure them as digital outputs driven low or as inputs with internal pull-ups enabled, to prevent parasitic current paths. The MCLR pin (pin 26) requires a 10 kohm pull-up to VDD; do not tie it directly to VDD. When using the CTMU for capacitive touch, ensure the sensor electrodes have a clean guard ring and stable ground reference. Always program the Configuration bits explicitly; relying on defaults can leave JTAG enabled and consume flash space reserved for application code.
For ADC sampling above 200 ksps, the PIC24F08KM204-I/PT requires the AVDD pin to be well-bypassed with both a 100 nF ceramic and a 10 uF bulk capacitor. The VREF+ pin must source sufficient current for the ADC reference ladder; use an external low-impedance reference (such as MCP1501) when sampling multiple channels rapidly to avoid reference droop. Avoid toggling digital outputs near analog inputs during ADC conversions; this is the dominant source of crosstalk in mixed-signal PIC24F designs.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - use PIC18F or dsPIC33 automotive parts for safety-relevant automotive designs. Halogen-free status not explicitly stated in available data.