PIC24F08KM101-I/P - 16-bit 32MHz 8KB Flash MCU 20-PDIP | Microchip
MPN: PIC24F08KM101-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.18 | $21.80 |
| 100 | $1.94 | $194.00 |
| 500 | $1.72 | $860.00 |
| 1,000 | $1.55 | $1,550.00 |
PIC24F08KM101-I/P Overview
A PIC microcontroller (MCU) is a compact single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals such as timers, communication interfaces, and analog blocks. PIC24F devices use a 16-bit modified Harvard architecture with a multi-stage pipeline, sitting between the 8-bit PIC18 family and the 32-bit PIC32MX/CE families in Microchip's portfolio. The '24F' suffix denotes the family tier and Flash-based program memory, and the KM subfamily specifically targets low-power, analog-rich, low pin-count applications with integrated operational amplifiers that can be used as signal conditioning front-ends before the ADC.
Key features of the PIC24F08KM101-I/P include flexible Capture/Compare/PWM (CCP) modules for motor control or timing, a Configurable Logic Cell (CLC) that allows users to build custom digital peripherals from on-chip signals, an integrated 12-bit ADC with sample-and-hold, and on-chip op-amps and a DAC for analog signal chains. The device also includes multiple communication peripherals, watchdog timers, and an in-circuit serial programming (ICSP) port that allows Flash programming without removing the chip from the board.
Typical applications for this part include industrial sensor nodes, low-power IoT endpoints, battery-powered handheld instruments, home appliances, white goods control boards, and small motor or fan control modules. The wide 1.8 V to 5.5 V supply range makes it especially attractive for products powered directly from a single lithium cell, two AA cells, or a regulated 3.3 V / 5 V rail, while the integrated op-amps simplify transducer-bridge designs such as temperature, pressure, or strain-gauge signal conditioning.
When designing with this device, confirm the desired operating voltage range matches the KM (1.8 V–5.5 V) variant rather than the PIC24FV (2.0 V–5.5 V) variant. Use low-ESR decoupling capacitors on VDD/AVDD and place them within a few millimetres of the pins. For low-power sleep-mode designs, follow the nanoWatt XLP guidance in the datasheet to achieve the published deep-sleep currents, paying close attention to which peripherals are clocked during sleep. This page consolidates distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24F08KM101-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 PIC24F08KM101-I/P (same form factor and footprint) — differing in Package, ADC, Core Architecture, Comparators, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F08KM101-E/P
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC24F16KM101-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24F08KM202-I/P
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24F08KL201-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24F08KA101-I/P
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →PIC24F04KL101-I/P
✅ Drop-In✓ In Stock
$0.76 / Unit
View Datasheet →PIC24F08KM101-I/P Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F (16-bit modified Harvard) |
| CPU Speed (Maximum) | 32 MHz |
| Program Memory (Flash) | 8 KB (2.75K x 24 words) |
| Data Memory (RAM) | 1 KB |
| Data EEPROM | 512 bytes |
| Pin Count | 20 |
| Package | PDIP-20 (Plastic Dual In-line Package, through-hole) |
| Operating Voltage Range (KM) | 1.8 V to 5.5 V |
| ADC | 12-bit, multi-channel |
| DAC | Integrated |
| Operational Amplifiers | Integrated on-chip |
| Configurable Logic Cell (CLC) | Yes |
| Capture/Compare/PWM | Flexible CCP modules |
| Low-Power Technology | nanoWatt XLP (eXtreme Low Power) |
| Operating Temperature | -40C to +85C (Industrial, -I suffix) |
| Mounting Type | Through-Hole (PDIP) |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
PIC24F08KM101-I/P 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 / reference voltage |
| Pin 4 | MCLR — Master Clear (reset) input, active low |
| Pin 5 | RA3 — Port A bit 3 / analog input |
| Pin 6 | RA4 — Port A bit 4 |
| Pin 7 | VDD — Positive supply voltage |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — Oscillator input / external clock input |
| Pin 10 | OSC2 — Oscillator output |
| Pin 11 | RB0 — Port B bit 0 |
| Pin 12 | RB1 — Port B bit 1 |
| Pin 13 | RB2 — Port B bit 2 |
| Pin 14 | RB3 — Port B bit 3 |
| Pin 15 | RB4 — Port B bit 4 |
| Pin 16 | RB5 — Port B bit 5 |
| Pin 17 | RB6 — Port B bit 6 / ICSP programming clock |
| Pin 18 | RB7 — Port B bit 7 / ICSP programming data |
| Pin 19 | AVSS — Analog ground reference |
| Pin 20 | AVDD — Analog positive supply voltage |
Typical Applications
PIC24F08KM101-I/P is suitable for 6 applications: Industrial Sensor Node, Battery-Powered IoT Endpoint, Home Appliance Control Board, Handheld Measurement Instrument, Small Motor / Fan Speed Controller, Automotive Body Electronics (Non-Safety).
Industrial Sensor Node
The PIC24F08KM101-I/P fits industrial sensor nodes because its 1.8 V to 5.5 V supply range, integrated 12-bit ADC, and on-chip op-amps can directly condition bridge-type sensors such as temperature, strain, or pressure transducers without external analog front-end ICs. The nanoWatt XLP deep-sleep current in the nanoampere range lets the node wake briefly to take a measurement, transmit, and return to sleep, stretching battery life over years. The 8 KB Flash handles small protocol stacks or proprietary RF framing, and the 20-PDIP through-hole package simplifies prototyping and field replacement on industrial PCBs.
Recommended
Battery-Powered IoT Endpoint
The PIC24F08KM101-I/P suits battery-powered IoT endpoints thanks to its nanoWatt XLP technology and 1.8 V minimum supply, allowing direct operation from a single lithium coin cell. The integrated 12-bit ADC and DAC remove the need for separate analog ICs, reducing both BOM cost and quiescent drain. A CLC block can implement custom wake-up logic without external gates, and the 32 MHz core handles TLS-lite or LoRaWAN-class MAC layers within the 8 KB Flash constraint. The 20-PDIP package supports hand-soldered prototypes before migrating to the SOIC variant.
Recommended
Home Appliance Control Board
The PIC24F08KM101-I/P is a strong fit for home appliances such as coffee machines, washing-machine sub-boards, or smart thermostats where the 20-PDIP through-hole package simplifies service and field repair. The CCP modules drive small TRIACs or relays for heating elements, pumps, or solenoids, while the on-chip op-amps condition NTC temperature sensors for closed-loop control. The 1.8 V to 5.5 V range lets a single regulator feed both 3.3 V logic and 5 V analog sections, and the 32 MHz core runs user-interface state machines plus simple PID loops in real time.
Recommended
Handheld Measurement Instrument
The PIC24F08KM101-I/P serves handheld multimeters, clamp meters, and portable environmental monitors because the integrated 12-bit ADC plus op-amps implement a complete analog front end for shunt resistors or thermocouples. The nanoWatt XLP modes extend battery life across months of standby, and the Configurable Logic Cell (CLC) can debounce switches or generate timing signals in hardware without burning CPU cycles. The 20-PDIP package supports quick firmware iteration during development, and the 8 KB Flash fits small UI libraries plus calibration routines.
Recommended
Small Motor / Fan Speed Controller
The PIC24F08KM101-I/P drives small DC fans, blowers, or low-voltage brushless motors through its Capture/Compare/PWM modules, which can generate variable-duty drive signals at up to 32 MHz peripheral clock rates. The on-chip op-amps back-EMF or current-sense signals can be amplified and fed into the 12-bit ADC for closed-loop speed or torque control without external amplifiers. Operating from 1.8 V to 5.5 V simplifies direct connection to single-cell Li-ion or 5 V USB supplies, and the 20-PDIP package eases bench-top prototyping of control firmware.
Recommended
Automotive Body Electronics (Non-Safety)
The PIC24F08KM101-I/P serves non-safety automotive body applications such as interior lighting controllers, seat-position memory modules, or HVAC flap actuators, where its -40C to +85C industrial temperature range covers most cabin environments. For under-hood or safety applications step up to PIC24F08KM101-E/P (-40C to +125C extended grade) in the same 20-PDIP package. The integrated CAN peripherals on larger KM family members simplify in-vehicle networking; the 8 KB Flash fits small protocol layers plus application logic, while the wide 5 V tolerance aligns with automotive 12 V regulated buses.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F08KM101-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F08KM101-E/P | PIC24F16KM101-I/P | PIC24F08KA101-I/P | PIC24F08KL201-I/P | PIC24F04KL101-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-20 | PDIP-20 (same) | PDIP-20 (same) | PDIP-20 (same) | PDIP-20 (same) | PDIP-20 (same) |
| Flash Memory | 8 KB | 8 KB | 16 KB | 8 KB | 12 KB | 4 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 0.5 KB |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating 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 |
| Integrated Op-Amps | Yes | Yes | Yes | No | No | No |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP |
| Pin-to-Pin Drop-In | — | Yes (same die, temp grade only) | Yes (Flash upgrade only) | Approx. (lacks KM analog) | Approx. (different pinout) | Approx. (less Flash, different family) |
Key Differentiators
- Integrated op-amps and DAC on-chip (vs PIC24F08KA101-I/P)
- 8 KB Flash with auto-pinhead at 20-PDIP (vs PIC24F04KL101-I/P)
- Extended temperature drop-in available (vs PIC24F08KM101-I/P (industrial grade) vs PIC24F08KM101-E/P)
- nanoWatt XLP deep-sleep current in nA range (vs PIC24F08KL201-I/P)
Design Notes
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 7) and a second 100 nF cap close to the AVDD pin (pin 20); for analog accuracy add a 10 uF bulk cap on AVDD. For battery-powered designs using the nanoWatt XLP modes, follow the datasheet sequence for entering Sleep/Idle: disable unused peripherals, switch the system clock to the low-power internal oscillator (either 31 kHz or 8 MHz LPRC), and configure the RTCC for periodic wake-up. Estimated: with the on-chip LPRC and ADC off, deep-sleep current is in the nanoampere range per the KM datasheet DS30009902C.
The 20-pin PDIP package simplifies hand assembly but also increases parasitic inductance and capacitance on long leads. Keep the analog traces (RA0–RA3, AVSS, AVDD) short and isolated from switching signals such as PWM outputs on RB0–RB7. Place a ground plane on the bottom layer and route analog returns directly to the AVSS pin rather than through shared digital ground paths. For ICSP programming, leave RB6 (PGC) and RB7 (PGD) accessible or expose test pads — they double as general I/O after reset.
Do not confuse PIC24F (KM, 1.8 V–5.5 V) with PIC24FV (2.0 V–5.5 V) variants when ordering; the 'V' suffix restricts the minimum supply. The MCLR pin (pin 4) is active-low reset and must be pulled high through a 10 kohm resistor for normal operation; leaving it floating causes intermittent resets. When migrating from the 20-PDIP to the 20-SOIC variant (PIC24F08KM101T-I/SO), verify pin 1 orientation and the ICSP pins because the SOIC pinout is mirrored relative to PDIP.
At 32 MHz CPU speed the PIC24F08KM101-I/P draws approximately 8–15 mA active (per the KM datasheet DS30009902C), but in deep-sleep mode this drops to nanoamperes. For continuous-active designs, ensure ambient temperature stays below +85 C for the -I industrial suffix, and derate clock speed above +70 C if the part is placed near a heat source. Estimated: at 25 C ambient with default clock settings, internal junction temperature rise is negligible.
Compliance Information
RoHS / lead-free / halogen-free status not present in the verified distributor data; AEC-Q100 not qualified (industrial grade -40C to +85C only). Microchip publishes material compliance on the product page; consult Microchip Direct or the datasheet DS30009902C for the latest declaration.
