PIC24F08KM102-E/SO - 16-Bit 32MHz 8KB Flash MCU | Microchip
Référence : PIC24F08KM102-E/SO ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.45 | $3,45 |
| 10 | $3.05 | $30,50 |
| 100 | $2.68 | $268,00 |
| 500 | $2.32 | $1 160,00 |
| 1 000 | $1.98 | $1 980,00 |
PIC24F08KM102-E/SO Présentation
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and programmable peripherals. The PIC24F line uses Microchip's modified Harvard 16-bit core with a 16-bit instruction width optimized for deterministic real-time control. It sits in the broader semiconductor hierarchy as: microcontroller -> embedded processor -> integrated circuit, and is widely adopted in industrial and consumer products where predictable interrupt latency and ultra-low standby current are key parameters. The 'KM' subfamily specifically adds Configurable Logic Cell (CLC) blocks and flexible Capture/Compare/PWM modules that target motor-control and signal-routing applications.
Key specifications include: 16 MIPS per MHz performance, 19 channels of 10-bit/12-bit selectable ADC, multiple Enhanced CCP/SCCP modules for PWM and capture, hardware comparators, hardware RTCC, and peripheral pin select (PPS) for flexible I/O mapping. The nanoWatt XLP sleep modes draw sub-microamp currents in deep sleep, enabling multi-year battery life on coin cells. The 28-SOIC industrial-grade (-E) variant operates from -40°C to +125°C and supports 1.8V-3.6V core VDD with separate analog and digital I/O rails for noise isolation.
The device integrates a hardware crypto engine, USB 2.0 full-speed with on-chip transceiver (PIC24FJ versions), and a configurable logic cell that lets designers implement glue logic without external gates. Process technology is Microchip's low-power CMOS with on-chip voltage scaling to retain state across 1.8V-3.6V. Compared with 8-bit PIC16/PIC18 devices the 16-bit core roughly doubles arithmetic throughput at the same clock, simplifying DSP math for sensor-fusion loops.
Typical applications include industrial sensor conditioning, low-power remote keyless entry, smoke and CO detectors, battery-powered IoT nodes, USB peripherals (PIC24FJ variant), motor control driver boards, and portable consumer devices. The wide operating temperature range also suits outdoor and automotive under-hood sensor clusters. The 28-SOIC footprint is convenient for hand-soldering prototypes and for designs that previously used PIC18F 28-pin parts.
When designing with this MCU, reserve at least one I/O pin for In-Circuit Serial Programming (ICSP) so firmware updates remain possible in the field. If you do not need USB, choose the PIC24F (non-FJ) variant to avoid USB clocking overhead; if USB is required, select the PIC24FJ derivative. The 1.8V minimum VDD supports direct connection to single-cell Li-ion and primary lithium chemistries without external LDO.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for engineers evaluating the PIC24F08KM102-E/SO that are not collected in the manufacturer datasheet alone.
Alternatives de remplacement direct pour PIC24F08KM102-E/SO — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC24F08KM102-E/SO (même facteur de forme et même empreinte) — différant par Package, Core, Operating Temperature Range, ADC, Comparators.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC24F08KM101-E/SO
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC24F16KM102-E/SO
✅ Remplacement direct✓ En stock
$1.92 / unité
Voir la fiche technique →PIC24F08KM202-E/SO
✅ Remplacement direct✓ En stock
$2.16 / unité
Voir la fiche technique →PIC24F08KA102-E/SO
✅ Remplacement direct✓ En stock
$1.85 / unité
Voir la fiche technique →PIC24F08KM102-E/SO Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC 16-bit modified Harvard |
| Program Memory (Flash) | 8 KB (2.75K x 24 instruction words) |
| Data RAM | 1 KB |
| Data EEPROM | 512 bytes |
| Maximum CPU Speed | 32 MIPS (32 MHz) |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| Plage de température de fonctionnement | -40°C to +125°C (Industrial -E) |
| ADC Channels | 19 channels, 10-bit/12-bit selectable |
| Capture/Compare/PWM Modules | MCCP and SCCP |
| Comparators | 2 hardware comparators |
| Configurable Logic Cell (CLC) | Yes |
| Boîtier | 28-pin SOIC (0.295", 7.50 mm width) |
| Type de montage | Surface Mount |
| Low-Power Technology | nanoWatt XLP eXtreme Low Power |
| Statut RoHS | Compliant |
Configuration des broches de PIC24F08KM102-E/SO
| Broche 1 | RA0 — Analog/Digital I/O; AN0; ULPWU |
| Broche 2 | RA1 — Analog/Digital I/O; AN1 |
| Broche 3 | RA2 — Analog/Digital I/O; AN2; VREF- |
| Broche 4 | RA3 — Analog/Digital I/O; AN3; VREF+ |
| Broche 5 | RA4 — Analog/Digital I/O; AN4 |
| Broche 6 | RA5 — Analog/Digital I/O; AN5 |
| Broche 7 | RA6 — Digital I/O; OSC2 |
| Broche 8 | RA7 — Digital I/O; OSC1 |
| Broche 9 | VSS — Ground reference |
| Broche 10 | VDD — Positive supply (1.8V-3.6V) |
| Broche 11 | RB0 — Digital I/O; AN12; PGED1 |
| Broche 12 | RB1 — Digital I/O; AN10; PGEC1 |
| Broche 13 | RB2 — Digital I/O; AN8 |
| Broche 14 | RB3 — Digital I/O; AN9 |
| Broche 15 | RB4 — Digital I/O; AN11 |
| Broche 16 | RB5 — Digital I/O; AN13 |
| Broche 17 | RB6 — Digital I/O; ICSPCLK |
| Broche 18 | RB7 — Digital I/O; ICSPDAT |
| Broche 19 | VSS — Ground reference |
| Broche 20 | VDD — Positive supply (1.8V-3.6V) |
| Broche 21 | RC0 — Digital I/O |
| Broche 22 | RC1 — Digital I/O |
| Broche 23 | RC2 — Digital I/O |
| Broche 24 | RC3 — Digital I/O |
| Broche 25 | RC4 — Digital I/O |
| Broche 26 | RC5 — Digital I/O |
| Broche 27 | RC6 — Digital I/O |
| Broche 28 | RC7 — Digital I/O |
Applications typiques
PIC24F08KM102-E/SO convient pour 6 applications: Industrial Sensor Conditioning and Transmitters, Low-Power Remote Keyless Entry and Security Fobs, Smoke and CO Detector with Long Battery Life, Battery-Powered IoT Sensor Nodes, Small Motor and Fan Speed Controllers, Portable Consumer Devices and Wearables.
Industrial Sensor Conditioning and Transmitters
The PIC24F08KM102-E/SO fits industrial 4-20 mA sensor transmitters because its 19 channels of 10/12-bit ADC and dual hardware comparators deliver simultaneous bridge excitation monitoring and threshold detection without external analog ASICs. With nanoWatt XLP sleep current below 1 uA and 1.8-3.6V VDD, the MCU runs directly from loop-powered or two-wire field instrument rails, eliminating auxiliary DC-DC stages and shrinking the BOM. Hardware CCP/SCCP modules drive PWM excitation for sensors requiring AC stimulation, while CLC implements zero-crossing detection in firmware-free hardware for predictable latency. Industrial temperature rating (-40C to +125C) supports outdoor and process-plant enclosures without thermal derating. Real-world designs integrate the MCU with a precision op-amp front-end and HART modem coprocessor; this part's small RAM footprint (1 KB) suits single-loop RTUs that exchange one process variable at a time over HART or WirelessHART.
Recommandé
Low-Power Remote Keyless Entry and Security Fobs
The PIC24F08KM102-E/SO is a benchmark fit for unidirectional RF key fobs because its nanoWatt XLP technology draws sub-microamp current in Sleep while the RTCC wakes the part on button press or scheduled poll. 8 KB Flash accommodates rolling-code encryption routines such as Microchip's Keeloq derivative, while 1 KB RAM holds the AES-128 working state and TX buffer. The 16-bit core executes Keeloq at 32 MIPS, well below the typical 100 ms latency budget for unlock response. CLC implements debouncing and timing in hardware, freeing the core for cryptographic work. Operating from a single CR2032 cell at 1.8-3.6V eliminates boost regulators, and 28-SOIC supports the small PCB outline required for hand-held fobs. Companion parts include sub-GHz transceivers for the RF link and a small piezo driver for chirp feedback.
Recommandé
Smoke and CO Detector with Long Battery Life
The PIC24F08KM102-E/SO's 19 ADC channels support photoelectric smoke chamber monitoring and electrochemical CO cell readout simultaneously, while CLC performs threshold detection in hardware to wake the CPU only on confirmed events. XLP deep-sleep at sub-1uA extends 9V battery life past 10 years per UL 217 smoke-detector endurance requirements. The integrated CCP module drives the piezo horn transducer directly, removing the dedicated timer IC typical in older designs. Industrial -40C to +125C rating supports garage and attic installations. Programming for wireless interconnected detectors (one triggers, all sound) is straightforward because the 16-bit core handles the interconnect protocol stack in a few KB of Flash. Companion parts include a low-noise LDO for the analog front-end and a horn-driver transistor pair.
Recommandé
Battery-Powered IoT Sensor Nodes
The PIC24F08KM102-E/SO powers IoT sensor nodes on coin cells or energy-harvesting sources because its XLP Sleep current below 1 microamp (with RTCC running) supports multi-year deployments. The 16-bit core executes LoRaWAN or Zigbee stack fragments in 8 KB Flash with room for application code, while 1 KB RAM holds MAC-layer buffers. ADC + comparator pair reads battery voltage and sensor output simultaneously, feeding energy-aware firmware that scales TX power based on remaining capacity. 28-SOIC supports hand-soldered single-layer PCBs for cost-sensitive nodes, while CLC implements hardware wake-on-motion with a MEMS accelerometer interrupt. The 1.8V minimum VDD connects directly to Li-SOCl2 primary cells used in metering and asset-tracking applications. Companion parts include a LoRa transceiver for long-range IoT and a MEMS accelerometer for motion wake.
Recommandé
Small Motor and Fan Speed Controllers
The PIC24F08KM102-E/SO controls BLDC or brushed fans because its MCCP/SCCP modules generate complementary PWM with programmable dead-time, while the 32 MIPS core executes field-oriented control loops in firmware. Dual comparators implement hardware overcurrent shutdown without CPU intervention, a critical safety feature for motor stalls. CLC integrates encoder pulse counting or back-EMF zero-cross detection in hardware, offloading the CPU. The 1.8-3.6V VDD plus 5V-tolerant I/O on most pins simplifies interface to gate drivers. Industrial -40C to +125C rating covers outdoor HVAC and appliance environments. The 28-SOIC package fits compact fan-control boards where space behind the fan hub is constrained. Companion parts include a three-phase gate driver and current-sense amplifier for closed-loop torque control.
Recommandé
Portable Consumer Devices and Wearables
The PIC24F08KM102-E/SO fits consumer wearables because its nanoWatt XLP technology minimizes battery drain between user interactions while 8 KB Flash holds sensor-fusion and UI firmware. The 16-bit core runs pedometer algorithms and BLE beacon-stack fragments comfortably at 32 MHz, leaving headroom for display refresh. CLC implements capacitive-sensing electrode scanning in hardware, reducing CPU load for touch UI on fitness bands. 1.8-3.6V VDD supports direct Li-ion battery connection without an external LDO, saving PCB area in compact wristbands. The 28-SOIC package's 0.295" width suits typical wearable mainboards. Industrial temperature rating supports outdoor fitness use from winter runs to pool-side sessions. Companion parts include a BLE module for phone pairing and a MEMS IMU for activity recognition.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC24F08KM102-E/SO — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC24F08KM101-E/SO | PIC24F16KM102-E/SO | PIC24F08KM202-E/SO | PIC24F08KA102-E/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (0.295") | 28-SOIC (0.295") - same | 28-SOIC (0.295") - same | 28-SOIC (0.295") - same | 28-SOIC (0.295") - same |
| Flash Memory | 8 KB | 4 KB (-50%) | 16 KB (+100%) | 8 KB (same) | 8 KB (same) |
| RAM | 1 KB | 1 KB (same) | 1 KB (same) | 2 KB (+100%) | 1 KB (same) |
| CPU Speed | 32 MIPS (32 MHz) | 32 MIPS (same) | 32 MIPS (same) | 32 MIPS (same) | 32 MIPS (same) |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V (same) | 1.8 V to 3.6 V (same) | 2.0 V to 5.5 V (extended) | 1.8 V to 3.6 V (same) |
| USB 2.0 FS | No | No | No | Yes (with transceiver) | No |
| Configurable Logic Cell | Yes | Yes (same) | Yes (same) | Yes (same) | No |
| ADC Channels | 19 channels, 10/12-bit | 19 channels, 10/12-bit (same) | 19 channels, 10/12-bit (same) | 19 channels, 10/12-bit (same) | 14 channels (lower) |
| Automotive Grade | No (Industrial -E) | No (Industrial -E) | No (Industrial -E) | No (Industrial -E) | No (Industrial -E) |
Principaux différenciateurs
- Configurable Logic Cell (CLC) hardware for glue-logic replacement (vs PIC24F08KA102-E/SO)
- 19 ADC channels versus 14 in the cost-down KA family (vs PIC24F08KA102-E/SO)
- Doubled Flash capacity at the same price tier (vs PIC24F08KM101-E/SO)
- Lower Sleep current than PIC24FJ USB variants (vs PIC24FJ64GA002-I/ML)
Notes de conception
Place a 100 nF decoupling capacitor as close as physically possible to each VDD pin (pins 10 and 20) with a 4.7 uF bulk capacitor on the analog VDD rail. The PIC24F08KM102-E/SO switches VDD current in tens-of-mA bursts during Flash programming; without adequate decoupling these bursts couple into the analog rail and shift ADC readings. A ferrite bead between digital and analog VDD further reduces noise injection into sensitive analog measurements during ADC sampling.
The PIC24F08KM102-E/SO in 28-SOIC has a theta_JA of approximately 70 C/W. At maximum operating current of 25 mA (CPU active at 32 MHz, all peripherals enabled), worst-case dissipation is around 90 mW. Estimated: junction temperature rise above ambient at this dissipation is 6.3 C, which is well within the 125 C limit even in sealed enclosures. Designers should still confirm thermal performance when stacking the MCU next to high-power analog front-end ICs on the same PCB.
Reserve pins RB6 (ICSPDAT) and RB7 (ICSPCLK) on a 5-pin in-circuit serial programming (ICSP) header so firmware updates remain possible in the field. The standard Microchip ICSP header is a 2x3 or 1x5 0.1" pin header with VPP, VDD, VSS, PGD, PGC ordering. Never tie these pins to ground through low-impedance paths; the ICSP driver expects to drive them, and direct shorts will prevent programming or damage the production programmer.
Do not apply voltage to any I/O pin before VDD is powered; the absolute maximum rating for input voltage is VDD + 0.3V, and exceeding this during hot-swap or power-sequencing can latch-up the part. Always include a brown-out reset setting that matches your supply ramp profile, and verify the CONFIGSET register matches your project's needs - default CONFIG1 settings may enable features (such as JTAG) that consume more current than your design budget allows.
Informations de conformité
RoHS and REACH compliant per Microchip product page. Industrial -E temperature grade is not AEC-Q100 qualified; for automotive designs, evaluate AEC-Q100 qualified variants from the PIC24F KM family.
