PIC24F08KA101-I/P - 16-bit XLP MCU, 8KB Flash, 32MHz | Microchip
MPN: PIC24F08KA101-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.84 | $3.84 |
| 10 | $3.45 | $34.50 |
| 100 | $3.06 | $306.00 |
| 500 | $2.74 | $1,370.00 |
| 1,000 | $2.45 | $2,450.00 |
PIC24F08KA101-I/P Overview
A microcontroller (MCU) is a single-chip processor that integrates a CPU core, volatile memory (SRAM), non-volatile program memory (Flash/ROM), peripherals (timers, ADC, communication), and interrupt logic. The PIC24F family sits in Microchip's 16-bit modified-Harvard RISC line, which is hierarchically a mid-range 16-bit MCU -> Flash MCU -> embedded controller -> semiconductor. The 'XLP' designation indicates the silicon is optimized for nanoWatt sleep current, allowing years of operation from a single coin cell.
Key specifications include 16-channel 10-bit ADC with 500 ksps throughput, four 16-bit timers, two comparators, real-time clock/calendar, five PWM channels, two UART, one SPI, one I2C, and an internal 8 MHz RC oscillator with PLL. The device supports In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD), enabling field-upgradeable firmware and reduced development time. According to the Microchip datasheet, deep-sleep current is approximately 20 nA with full RAM retention, making it competitive with the lowest-power Cortex-M0+ parts.
Typical applications include wearable health monitors, remote sensor nodes, electronic shelf labels, smart thermostats, wireless sensor tag controllers, and battery-backed instrumentation. The 20-pin PDIP footprint supports through-hole prototyping, breadboarding, and legacy industrial designs where socketed or hand-replaceable parts are preferred over SMT-only parts.
When designing, allocate a 0.1uF decoupling capacitor within 5 mm of the VDD pin and a 10uF bulk capacitor on the VCORE pin to stabilize the internal 1.8V regulator. The -I/P suffix indicates industrial temperature range (-40C to +85C) in a PDIP package; choose -E/P for extended (-40C to +125C) or the -I/SO SOIC variant for SMT.
This page consolidates Microchip datasheet specifications, distributor pricing as of 2026-09-29, drop-in alternative guidance, and design notes not found on the manufacturer product page - useful context for sourcing engineers and firmware developers who need a complete picture of the part's role in low-power embedded designs.
Drop-in alternatives for PIC24F08KA101-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 PIC24F08KA101-I/P (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Timers, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F08KA101-E/P
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →PIC24F04KA201-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24F04KA200-I/ST
✅ Drop-In✓ In Stock
$1.42 / Unit
View Datasheet →PIC24F08KA102-I/P
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24F08KA101-I/P Maximum Ratings & Electrical Characteristics
| Family | PIC24F (16-bit RISC, modified Harvard) |
| Core Architecture | PIC24F eXtreme Low Power (XLP) |
| Program Memory (Flash) | 8 KB (2.75K x 24 instruction words) |
| Data SRAM | 1 KB |
| Data EEPROM | 512 B |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| Internal Core Voltage | 1.8 V (on-chip regulator) |
| I/O Pins | 16 |
| ADC | 10-bit, up to 16 channels, 500 ksps |
| Timers | 4 x 16-bit Timer/Counter |
| Communication Interfaces | 2x UART, 1x SPI, 1x I2C |
| PWM Channels | 5 |
| Comparators | 2 |
| Package | 20-pin PDIP (P, 0.300 inch / 7.62 mm row spacing) |
| Temperature Range | -40C to +85C (Industrial) |
| Deep Sleep Current | ~20 nA (typ, with RTCC and RAM retention) |
| Programming/Debug | ICSP and ICD via MPLAB X / REAL ICE / ICD 3 |
| RoHS Status | Compliant |
PIC24F08KA101-I/P Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low; pull-up to VDD required |
| Pin 2 | RA0 — Digital I/O / analog AN0 / CVREF- |
| Pin 3 | RA1 — Digital I/O / analog AN1 / CVREF+ |
| Pin 4 | RA2 — Digital I/O / analog AN2 / VREF- |
| Pin 5 | RA3 — Digital I/O / analog AN3 / VREF+ |
| Pin 6 | RA4 — Digital I/O / analog AN4 / SOSCO (RTCC secondary) |
| Pin 7 | RA5 — Digital I/O / analog AN5 / SOSCI (RTCC secondary) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — Crystal oscillator input / external clock input |
| Pin 10 | OSC2 — Crystal oscillator output |
| Pin 11 | RB0 — Digital I/O / PGED1 (programming data) / AN6 |
| Pin 12 | RB1 — Digital I/O / PGEC1 (programming clock) / AN7 |
| Pin 13 | RB2 — Digital I/O / AN8 / PWM OC1 |
| Pin 14 | RB3 — Digital I/O / AN9 / PWM OC2 |
| Pin 15 | RB4 — Digital I/O / AN10 / SDA1 (I2C data) |
| Pin 16 | RB5 — Digital I/O / AN11 / SCL1 (I2C clock) |
| Pin 17 | RB6 — Digital I/O / AN12 / PWM OC3 |
| Pin 18 | VCORE — Internal 1.8V regulator output, requires 10uF decoupling |
| Pin 19 | VSS — Ground reference (second pin) |
| Pin 20 | VDD — Positive supply input, 3.0V to 3.6V |
Typical Applications
PIC24F08KA101-I/P is suitable for 6 applications: Battery-Powered Wireless Sensor Node, Wearable Health Monitor, Electronic Shelf Label (ESL) Controller, Industrial Data Logger, Smart Home Sensor Hub, Remote Control / Human-Machine Interface.
Battery-Powered Wireless Sensor Node
The PIC24F08KA101-I/P is well suited to wireless sensor nodes because its XLP deep-sleep current of ~20 nA allows years of operation from a CR2032 coin cell when waking periodically to transmit. Its 32 MHz / 16 MIPS core handles sensor sample processing, link-layer encryption, and RF transceiver control without external components. The 10-bit ADC with up to 16 channels supports multiple analog sensors (temperature, light, soil moisture) on a single MCU, and the 5 PWM channels can drive indicator LEDs or haptic feedback. Designers can use the integrated RTCC with alarm wake to schedule periodic measurements and the 8 KB Flash to hold a lightweight 6LoWPAN or LoRaWAN-style stack.
Recommended
Wearable Health Monitor
Wearable health and fitness monitors benefit from the PIC24F08KA101-I/P's combination of low power consumption, compact 20-pin PDIP footprint, and analog integration. The 16-channel 10-bit ADC samples photoplethysmography (PPG) sensor signals, skin temperature, and galvanic skin response, while the integrated comparators detect thresholds without waking the CPU. The 1 KB SRAM holds circular sample buffers, and 512B EEPROM stores calibration constants. The 5 PWM channels drive vibration motor alerts and LED pulse oximetry. XLP sleep modes allow 1-2 week battery life at 24-hour continuous monitoring with BLE beaconing every 5 seconds.
Recommended
Electronic Shelf Label (ESL) Controller
Electronic shelf labels in retail require an MCU that can run for 5-10 years on a coin cell while periodically updating a segmented or e-paper display. The PIC24F08KA101-I/P's 20 nA deep-sleep current and integrated RTCC enable exactly this duty cycle: deep-sleep most of the time, wake hourly to refresh the display and check for wireless commands. The 8 KB Flash holds a custom display driver and small RF protocol stack, while 1 KB SRAM suffices for frame buffers. The 20-pin PDIP is often replaced by the -I/SO variant on ESL PCBs, but the -I/P remains popular for hand-soldered development and prototype runs.
Recommended
Industrial Data Logger
Industrial data loggers benefit from the PIC24F08KA101-I/P's industrial -40C to +85C temperature range, 512B EEPROM for non-volatile parameter storage, and 8 KB Flash for cyclic logging firmware. The 16-channel ADC captures process variables (pressure, flow, temperature) at up to 500 ksps, while the 5 PWM outputs can drive valve actuators or indicator LEDs. Two UART ports allow simultaneous connection to a local HMI display and a fieldbus gateway (RS-485 via external transceiver). The 20-pin PDIP package supports through-hole assembly for legacy industrial enclosures and vibration-resistant installations where SMT would be unreliable.
Recommended
Smart Home Sensor Hub
Smart home sensor hubs leverage the PIC24F08KA101-I/P's rich peripheral set to aggregate inputs from multiple sensors and forward them to a Wi-Fi or Zigbee gateway. The 16-channel ADC reads analog sensors (gas, light, sound), the I2C bus interfaces with digital environmental sensors (temperature, humidity, VOC), and the SPI bus drives an optional color display. The 8 KB Flash holds a multi-protocol agent that bridges BLE/Zigbee/Thread radios. The integrated RTCC handles time-stamping of events even during power interruptions when paired with a backup supercap. Power consumption in idle listening mode is < 1 mA, suitable for always-on USB-powered hubs.
Recommended
Remote Control / Human-Machine Interface
Remote controls, key fobs, and small HMI panels fit the PIC24F08KA101-I/P profile: 16 I/O pins scan matrix keypads up to 4x4, two comparators detect capacitive touch via RC timing, and the 5 PWM channels drive haptic motors or backlight LEDs. The XLP sleep modes allow multi-year battery life for always-listening key fobs that wake on capacitive touch. The UART supports firmware updates over a debug header without requiring physical access. Designers choose the 20-pin PDIP for through-hole hobby and maker projects where the part is socketed for easy firmware experimentation.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F08KA101-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F08KA101-E/P | PIC24F04KA201-I/P | PIC24F04KA200-I/ST | PIC24F08KA102-I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin PDIP | 20-pin PDIP (same) | 20-pin PDIP (same) | 20-pin PDIP option (same) | 20-pin PDIP (same) |
| Program Flash | 8 KB | 8 KB (same) | 4 KB (-50%) | 4 KB (-50%) | 8 KB (same) |
| SRAM | 1 KB | 1 KB (same) | 1 KB (same) | 1 KB (same) | 1 KB (same) |
| EEPROM | 512 B | 512 B (same) | 512 B (same) | 512 B (same) | 512 B (same) |
| Maximum Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS (same) | 32 MHz / 16 MIPS (same) | 32 MHz / 16 MIPS (same) | 32 MHz / 16 MIPS (same) |
| Temperature Range | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (same) | -40C to +85C (same) | -40C to +85C (same) |
| Deep-Sleep Current | ~20 nA | ~20 nA (same) | ~20 nA (same) | ~20 nA (same) | ~20 nA (same) |
| ADC | 10-bit, 16 channels | 10-bit, 16 channels (same) | 10-bit, 9 channels | 10-bit, 9 channels | 10-bit, 16 channels (same) |
Key Differentiators
- Wider industrial temperature envelope (vs PIC24F04KA201-I/P)
- Higher ADC channel count than KA2x family (vs PIC24F04KA201-I/P)
- Same core, more memory (vs PIC24F08KA101-E/P)
Design Notes
Place a 10 uF ceramic capacitor as close as possible to the VCORE pin (pin 18) to stabilize the internal 1.8V regulator; Xilinx/Microchip both recommend a 0.1 uF decoupling cap within 5 mm of VDD (pin 20). Estimated: at VDD=3.3V, the MCU draws ~5 mA active / ~20 nA in deep-sleep - budget bulk capacitance to ride out supply glitches during RF transmission bursts of paired radios.
For ICSP/ICD debugging, route PGED1 (RB0, pin 11) and PGEC1 (RB1, pin 12) to a 2x3 0.100 inch header with no series resistors or buffering. Keep traces short (< 50 mm) and avoid sharing these pins with high-current drivers; the on-chip debug logic asserts these signals during programming and contention will fail verification.
Do not leave MCLR floating - it requires a 10 kohm pull-up to VDD or the device will randomly reset. The -I/P variant is NOT 5V tolerant on I/O pins; driving any input above VDD+0.3V can latch-up the part. For mixed 3.3V/5V designs, use a level shifter (e.g., TXB0108) rather than direct connection.
Estimated: at 32 MHz active and 3.3V VDD, the PIC24F08KA101-I/P dissipates roughly 25 mW (8 mA core current), giving a junction rise of ~5C above ambient at the standard JEDEC EIA/JESD51 4-layer test board. The plastic PDIP package can operate continuously at -40C to +85C industrial range with conservative derating; the -E/P variant extends this to +125C for under-hood automotive applications.
When using the I2C peripheral (SDA1=RB4, SCL1=RB5), enable internal weak pull-ups only for low-speed (< 100 kHz) buses; for 400 kHz Fast Mode and 1 MHz Fast Mode Plus, use external 2.2 kohm to 4.7 kohm pull-ups to VDD. The 16 MHz SPI bus on the same MCU should use series resistors (22-33 ohm) near the driver for cable runs > 50 mm.
Compliance Information
RoHS and REACH compliance per Microchip product material declaration; Pb-free (lead-free) and halogen-free per Microchip Green/RoHS packaging spec. AEC-Q100 not applicable for industrial-grade PDIP; choose PIC24F08KA101-E/P (extended temperature) or specific Q-graded variants for automotive.
