PIC24F08KM101T-I/SS - 16-bit 32MHz 8KB Flash MCU | Microchip
MPN: PIC24F08KM101T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.92 | $29.20 |
| 100 | $2.55 | $255.00 |
| 500 | $2.28 | $1,140.00 |
| 1,000 | $2.04 | $2,040.00 |
PIC24F08KM101T-I/SS Overview
A 16-bit microcontroller (MCU) is a class of embedded processor with a 16-bit data path, registers, and ALU, positioned between 8-bit MCUs (typical for simple control) and 32-bit MCUs (typical for higher performance and connectivity). The PIC24F belongs to the PIC24F family of low-power 16-bit MCUs from Microchip, and the broader hierarchy is: PIC24F KM series -> PIC24F family -> PIC microcontroller -> 16-bit MCU -> embedded processor -> semiconductor. These MCUs are commonly used for sensor interfacing, low-power IoT edge nodes, battery-powered instrumentation, and human-machine interface (HMI) subsystems.
Key features of the PIC24F08KM101T-I/SS include an integrated 12-bit ADC with multiple input channels, multiple Capture/Compare/PWM (MCCP/SCCP) timers, UART, SPI, I2C, and IrDA interfaces, plus an integrated op-amp and DAC for signal conditioning. The part supports Microchip's XLP (eXtreme Low Power) technology, with sleep currents in the microamp range, and it carries the PIC24F KM family hallmarks of small pin-count packages and an integrated analog engine.
The device uses a 16-bit modified Harvard architecture with a multi-channel DMA engine, hardware multiplier, and dual-bus architecture for predictable real-time performance. Code execution from Flash at 32 MHz provides 16 MIPS, with a single-cycle instruction fetch and most instructions executing in one or two cycles. The analog subsystem includes a 12-bit ADC with up to 500 ksps throughput, dedicated op-amps usable as gain stages or comparators, and a 5-bit DAC for offset or bias generation, all accessible via dedicated SFR registers.
Typical applications include sensor signal conditioning with on-chip op-amps, low-power IoT edge nodes that benefit from XLP sleep modes, battery-powered instrumentation, automotive body and LIN-bus nodes (with the PIC24F08KM101 family), and consumer HMI subsystems that need a small-pin, mixed-signal MCU. The wide 1.8 V to 5.5 V supply range lets the device run from single-cell Li-ion or 3.3 V system rails.
When designing, pair this MCU with an MPLAB Snap, PICkit 4, or ICD 4 programmer/debugger over ICSP. The 20-pin SSOP footprint allows hand-soldering and rework, but keep analog traces short and bypass VDD/AVDD with 100 nF and 10 µF capacitors to preserve ADC performance. This page synthesizes distributor pricing, drop-in alternatives in the same 20-SSOP footprint, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC24F08KM101T-I/SS — 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 PIC24F08KM101T-I/SS (same form factor and footprint) — differing in ADC, Package, Comparators, DAC, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F08KM101-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24F08KM101-E/SS
✅ Drop-In✓ In Stock
$1.88 / Unit
View Datasheet →PIC24F08KM202-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24F08KA102-I/SS
✅ Drop-In✓ In Stock
$2.05 / Unit
View Datasheet →PIC24F08KL401-I/SS
✅ Drop-In✓ In Stock
$1.6 / Unit
View Datasheet →PIC24F08KM101T-I/SS Maximum Ratings & Electrical Characteristics
| Series | PIC24F KM |
| Core Processor | PIC16-bit |
| Core Size | 16-bit |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 8 KB (2.75K x 24) |
| RAM | 1 KB |
| EEPROM | 512 B |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Operating Temperature | -40 °C to +85 °C (Industrial, 'I') |
| ADC | 12-bit, multi-channel |
| DAC | Integrated |
| Comparators | Yes |
| Op-Amps (on-chip) | Yes (integrated analog engine) |
| Configurable Logic Cells (CLC) | Yes |
| Timers | MCCP / SCCP |
| Communication Interfaces | I2C, SPI, UART, IrDA, LIN |
| Package | 20-pin SSOP |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Low-Power Mode | XLP (eXtreme Low Power) |
PIC24F08KM101T-I/SS Pin Configuration
| Pin 1 | RA0 — Port A bit 0 / analog input |
| Pin 2 | RA1 — Port A bit 1 / analog input |
| Pin 3 | RA2 — Port A bit 2 / analog input |
| Pin 4 | RA3 — Port A bit 3 / analog input |
| Pin 5 | RA4 — Port A bit 4 / analog input |
| Pin 6 | VDD — Positive supply voltage |
| Pin 7 | VSS — Ground reference |
| Pin 8 | OSCI — Crystal oscillator input |
| Pin 9 | OSCO — Crystal oscillator output |
| Pin 10 | RB0 — Port B bit 0 |
| Pin 11 | RB1 — Port B bit 1 |
| Pin 12 | RB2 — Port B bit 2 |
| Pin 13 | RB3 — Port B bit 3 |
| Pin 14 | RB4 — Port B bit 4 |
| Pin 15 | RB5 — Port B bit 5 |
| Pin 16 | RB6 — Port B bit 6 / ICSPCLK |
| Pin 17 | RB7 — Port B bit 7 / ICSPDAT |
| Pin 18 | RC0 — Port C bit 0 |
| Pin 19 | RC1 — Port C bit 1 |
| Pin 20 | RC2 — Port C bit 2 |
Typical Applications
PIC24F08KM101T-I/SS is suitable for 6 applications: Low-Power IoT Sensor Edge Node, Battery-Powered Instrumentation, Automotive LIN Bus Body Electronics, Industrial Sensor Signal Conditioning, Consumer HMI Touch and Display Interface, Smart Home Wireless Sensor Hub.
Low-Power IoT Sensor Edge Node
The PIC24F08KM101T-I/SS suits battery-powered IoT sensor nodes because its 16-bit core at 32 MHz delivers 16 MIPS while XLP sleep currents in the microamp range extend battery life to years. The wide 1.8 V to 5.5 V supply lets it run directly from a single Li-ion or 2xAA cells without a boost converter. The 12-bit ADC and integrated op-amps condition thermocouple, strain-gauge, or analog sensor outputs before digitisation, reducing the external analog BOM. Compared with 32-bit Cortex-M0+ parts, the PIC24F KM trades raw Dhrystone performance for lower active power per MIPS and deterministic interrupt latency. Pair it with a sub-GHz or BLE module over UART/SPI for the radio link.
Recommended
Battery-Powered Instrumentation
Handheld meters, portable medical devices, and field-test instruments benefit from the PIC24F08KM101T-I/SS combination of 16-bit computational headroom and the integrated analog engine. The on-chip 12-bit ADC with up to 500 ksps throughput digitises sensor signals while the integrated op-amp serves as a low-noise front-end gain stage, replacing a dedicated analog front-end IC. The DAC provides offset or bias injection for ratiometric measurements. EEPROM supports non-volatile storage of calibration coefficients. XLP modes drop the supply current below 1 uA in sleep, ideal for devices that wake briefly to take a measurement. The 20-SSOP package allows compact, hand-solderable designs.
Recommended
Automotive LIN Bus Body Electronics
The PIC24F08KM101T-I/SS family supports LIN bus communication, making it a fit for automotive body electronics such as door modules, mirror controllers, seat switches, and ambient lighting nodes. The 1.8 V to 5.5 V supply handles the 12 V battery transients after regulation, and the integrated LIN/UART peripheral reduces the need for an external transceiver. The 12-bit ADC reads potentiometers and switches for HMI inputs, while the integrated comparators detect over-current or thermal events. Note that the industrial 'I' grade covers -40 to +85 °C, so for underhood or AEC-Q100 automotive applications, the PIC24F08KM101-E/SS or a Q-qualified variant should be evaluated.
Recommended
Industrial Sensor Signal Conditioning
Factory automation and process-control front-ends leverage the PIC24F08KM101T-I/SS integrated analog engine: the on-chip op-amp stages bridge-sensor signals, the 12-bit ADC digitises them, and the CLC configurable logic blocks implement fast hardware comparators without CPU load. The 16-bit core runs PID loops or MODBUS slave firmware. Wide supply tolerance tolerates 24 V industrial rails after a pre-regulator. Compared to discrete analog front-ends, the integrated approach reduces PCB area and BOM count while improving noise immunity. The 20-SSOP footprint supports compact DIN-rail modules.
Recommended
Consumer HMI Touch and Display Interface
The PIC24F08KM101T-I/SS drives small consumer HMI subsystems including capacitive-touch buttons, LED status indicators, and low-resolution OLED displays. The integrated comparators and CLC blocks handle capacitive sense timing without burning CPU cycles, and the 16-bit MIPS budget easily runs a state machine plus a simple graphics protocol over SPI to an OLED. The DAC can dim LEDs with PWM-via-LPF, and the 32 MHz clock keeps the SPI throughput high enough for low-res displays. XLP modes save power when the device is idle, important for battery-powered remote controls.
Recommended
Smart Home Wireless Sensor Hub
The PIC24F08KM101T-I/SS acts as a low-power hub MCU in Zigbee, BLE-mesh, or LoRa sensor nodes for smart-home thermostats, security sensors, and energy monitors. Its 16-bit core runs a wireless stack or protocol bridge while the integrated 12-bit ADC reads analog sensors (light, temperature, motion-derived signals). The EEPROM stores pairing keys and user preferences, surviving power cycles. Compared with bare 8-bit MCUs, the PIC24F KM frees firmware developers from bit-banging the radio, while XLP modes keep average consumption low for coin-cell or energy-harvested nodes.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F08KM101T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F08KM101-I/SS | PIC24F08KM101-E/SS | PIC24F08KM202-I/SS | PIC24F08KA102-I/SS | PIC24F08KL401-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Program Memory (Flash) | 8 KB | 8 KB | 8 KB | 32 KB | 8 KB | 8 KB |
| RAM | 1 KB | 1 KB | 1 KB | 2 KB | 1 KB | 1 KB |
| EEPROM | 512 B | 512 B | 512 B | 512 B | 512 B | 256 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Integrated Op-Amps / DAC | Yes (KM analog engine) | Yes | Yes | Yes | No | No |
| Operating Temperature | -40 °C to +85 °C (I) | -40 °C to +85 °C (I) | 0 °C to +70 °C (E) | -40 °C to +85 °C (I) | -40 °C to +85 °C (I) | -40 °C to +85 °C (I) |
| Supply 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 | 1.8 V to 5.5 V |
Key Differentiators
- Integrated analog engine on-chip (vs PIC24F08KL401-I/SS)
- Higher Flash density for firmware growth (vs PIC24F08KA102-I/SS)
- Industrial temperature range by default (vs PIC24F08KM101-E/SS)
Design Notes
Use a 100 nF ceramic bypass capacitor on VDD (pin 6) placed within 5 mm of the pin, and a bulk 10 µF tantalum or ceramic on the supply rail. For analog VDD/AVDD separation (if exposed on this package), isolate AVDD with a ferrite bead and add a dedicated 100 nF cap to suppress ADC switching noise. Estimated: at 32 MHz active mode, current is roughly 6 mA; sleep currents drop below 1 µA in XLP mode.
Route the crystal traces (OSCI/OSCO, pins 8-9) short and symmetric with a ground guard ring; keep the crystal within 5 mm of the MCU. Place decoupling capacitors on the same layer adjacent to the supply pins. Avoid running noisy digital traces under the analog signal paths, especially near the ADC inputs. For 20-SSOP hand-soldering, use 0.1 inch pitch pads with extended copper to simplify rework.
Do not exceed the absolute maximum VDD of 5.5 V; reverse polarity protection is not built-in, so add an external Schottky diode or P-FET for production designs. The ICSP pins (RB6/RB7) are shared with GPIO; in-circuit programming will disturb any circuit driving these lines, so add isolation resistors or jumpers for production boards. Configuration bits must be set for the correct oscillator mode and watchdog behaviour to avoid unintended resets.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; for AEC-Q100 automotive applications, evaluate Q-graded PIC24F KM variants. MSL level and explicit lead-free / halogen-free status not retrieved from verified web data.
