PIC24F08KA101-I/SS - 16-Bit 32MHz 8KB Flash XLP MCU | Microchip
MPN: PIC24F08KA101-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.65 | $26.50 |
| 100 | $2.35 | $235.00 |
| 500 | $2.1 | $1,050.00 |
| 1,000 | $1.85 | $1,850.00 |
PIC24F08KA101-I/SS Overview
An MCU (microcontroller unit) is a single-chip computer containing a CPU core, program and data memory, and programmable peripherals. The PIC24F belongs to Microchip's 16-bit modified-Harvard architecture family, sitting above the 8-bit PIC18 and below the 32-bit PIC32 in Microchip's MCU hierarchy. Within power-management IC taxonomy, MCUs are distinct from linear regulators and DC-DC converters but frequently pair with them as host controllers for sensor nodes, motor drivers, and human-machine interfaces. The XLP variants extend battery life through sub-microamp deep-sleep currents that competitor MCUs cannot match without external RTC chips.
Key features include 16 channels of 10-bit ADC, 4 timers, and communication peripherals (I2C, IrDA, SPI, UART/USART). The device operates from 1.8V to 3.6V across an industrial temperature range of -40C to +85C, supporting brown-out detect/reset and power-on reset for robust operation in noisy environments.
The PIC24F08KA101 uses a 16-bit modified-Harvard architecture with a 24-bit instruction word, providing 16 MIPS throughput at 32MHz. The integrated nanoWatt XLP technology enables run currents below 1 mA/MIPS and deep-sleep currents in the nanoamp range, with RTCC, DSBOR, and DSWDT operating even in deep sleep to maintain real-time functionality.
Typical applications include battery-powered sensor nodes, IoT edge devices, portable medical instruments, and remote controls. Its wide operating voltage and low power consumption also suit industrial 4-20 mA loop-powered transmitters and wearables.
When designing with this part, ensure the 20-pin SSOP footprint matches the SSOP land pattern on the PCB. Provide a 0.1 uF decoupling capacitor within 5 mm of each VDD pin, and place the bulk capacitor near the voltage regulator output to handle transient loads during deep-sleep wake events.
This page synthesizes distributor pricing, verified drop-in same-package alternatives, and practical design notes not found in the standalone manufacturer datasheet, providing procurement and engineering teams a one-stop decision resource for the PIC24F08KA101-I/SS.
Drop-in alternatives for PIC24F08KA101-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 PIC24F08KA101-I/SS (same form factor and footprint) — differing in Package, ADC, Program Memory (Flash), Operating Temperature, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F08KA101-I/P
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →PIC24F08KA101-E/P
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →PIC24F04KA201-I/SS
✅ Drop-In✓ In Stock
$1.67 / Unit
View Datasheet →PIC24F04KL101-I/SO
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC24F08KA101-I/MQ
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24F08KA101-I/SS Maximum Ratings & Electrical Characteristics
| Core Processor | PIC24F |
| Core Size | 16-Bit |
| Program Memory Type | FLASH |
| Program Memory Size | 8KB (2.75K x 24) |
| RAM Size | 1KB |
| EEPROM Size | 512B |
| Maximum CPU Speed | 32MHz (16 MIPS) |
| Operating Voltage Range | 1.8V to 3.6V |
| I/O Pins | 16 |
| Communication Peripherals | I2C, IrDA, SPI, UART/USART |
| Operating Temperature | -40C to +85C |
| Package | 20-SSOP (0.209 inch / 5.30mm width) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Low Power Technology | nanoWatt XLP with deep-sleep mode |
| Brown-out Reset / POR | Yes |
PIC24F08KA101-I/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | AN0/CVREF/RA0 — Analog input 0 / comparator reference / Port A0 |
| Pin 3 | AN1/RA1 — Analog input 1 / Port A1 |
| Pin 4 | AN2/RA2 — Analog input 2 / Port A2 |
| Pin 5 | AN3/RA3 — Analog input 3 / Port A3 |
| Pin 6 | RA4 — Port A4 digital I/O |
| Pin 7 | RA5 — Port A5 digital I/O |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/RA6 — Oscillator input / Port A6 |
| Pin 10 | OSC2/RA7 — Oscillator output / Port A7 |
| Pin 11 | RB0 — Port B0 digital I/O |
| Pin 12 | RB1 — Port B1 digital I/O |
| Pin 13 | RB2 — Port B2 digital I/O |
| Pin 14 | RB3 — Port B3 digital I/O |
| Pin 15 | RB4 — Port B4 digital I/O |
| Pin 16 | RB5 — Port B5 digital I/O |
| Pin 17 | RB6/PGC — Port B6 / ICSP clock |
| Pin 18 | RB7/PGD — Port B7 / ICSP data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage 1.8V to 3.6V |
Typical Applications
PIC24F08KA101-I/SS is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Portable Medical Instruments, Remote Controls and Consumer Wireless, Industrial 4-20 mA Loop-Powered Transmitters, Wearable Fitness and Health Trackers, Smart Home Sensor Hubs.
Battery-Powered IoT Sensor Nodes
The PIC24F08KA101-I/SS's nanoWatt XLP technology achieves deep-sleep currents below 100 nA with RTCC active, allowing coin-cell CR2032-powered sensor nodes to operate for years. The 16 MIPS throughput at 32MHz handles sensor sampling from the 10-bit ADC and UART command processing to an external BLE or LoRa module. The 1.8V minimum operating voltage lets the MCU run directly from a depleted 2xAA battery stack without boost converter overhead.
Recommended
Portable Medical Instruments
The PIC24F08KA101-I/SS suits portable medical devices such as glucose meters, pulse oximeters, and digital thermometers due to its low-power operation and integrated EEPROM for storing calibration constants. The 8KB Flash holds firmware for sensor signal conditioning algorithms, while 1KB RAM is adequate for sample buffers. Wide 1.8-3.6V input allows direct Li-ion battery operation with no LDO dropout concerns at low charge states.
Recommended
Remote Controls and Consumer Wireless
The PIC24F08KA101-I/SS paired with an external 2.4 GHz transceiver creates an ultra-low-power remote control with months-long battery life. Its deep-sleep mode with wake-on-I/O-change allows the MCU to sleep until a button press, drawing minimal current between transmissions. The 10-bit ADC and PWM outputs drive LED backlighting, while UART/SPI interfaces connect to RF modules like the Microchip MRF24XA or third-party BLE SoCs.
Recommended
Industrial 4-20 mA Loop-Powered Transmitters
The PIC24F08KA101-I/SS operates directly from the 4-20 mA loop voltage after a small shunt regulator, eliminating the need for separate power conditioning circuits in field-mounted sensors. Its industrial -40C to +85C operating range handles outdoor and process-plant environments, while integrated 10-bit ADC digitizes sensor signals for HART or IO-Link communication. The 16 MIPS handles protocol stack layers without external ASIC.
Recommended
Wearable Fitness and Health Trackers
The PIC24F08KA101-I/SS's XLP nanoWatt deep-sleep mode extends wearable battery life by allowing the MCU to sleep between heart-rate measurements while RTCC maintains accurate timekeeping. The integrated EEPROM stores user profile data, and the small 20-SSOP package fits wristband form factors. The 10-bit ADC reads PPG (photoplethysmography) signals from optical sensors with sufficient resolution for step counting and heart-rate algorithms.
Recommended
Smart Home Sensor Hubs
The PIC24F08KA101-I/SS serves as a low-power edge node in smart home systems, aggregating multiple I2C sensors (temperature, humidity, motion) and forwarding data over Wi-Fi via a co-processor. Its deep-sleep mode allows the hub to sleep until motion or environmental thresholds trigger a wake event. The 8KB Flash holds custom protocol firmware, and 16 GPIO support multiple sensor connections.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F08KA101-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F08KA101-I/P | PIC24F08KA101-E/P | PIC24F04KA201-I/SS | PIC24F04KL101-I/SO | PIC24F08KA101-I/MQ |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-PDIP (not same footprint) | 20-PDIP (not same footprint) | 20-SSOP - same | 20-SOIC (wider pitch) | 20-QFN 5x5 (different footprint) |
| Program Memory (Flash) | 8KB | 8KB | 8KB | 4KB (-50%) | 4KB (-50%) | 8KB |
| RAM | 1KB | 1KB | 1KB | 1KB | 1KB | 1KB |
| EEPROM | 512B | 512B | 512B | 512B | 512B | 512B |
| Max CPU Speed | 32MHz / 16 MIPS | 32MHz / 16 MIPS | 32MHz / 16 MIPS | 32MHz / 16 MIPS | 32MHz / 16 MIPS | 32MHz / 16 MIPS |
| Operating Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- nanoWatt XLP deep-sleep with active RTCC (vs PIC24F08KA101-I/MQ)
- Integrated 512B EEPROM (vs PIC24F08KA101-I/P (PDIP))
- Wide 1.8V to 3.6V operating range (vs PIC24F04KA201-I/SS)
Design Notes
Estimated: at 32MHz and 3.3V VDD, active current is approximately 8 mA. Switching to 1 MHz internal oscillator drops active current to ~250 uA. For battery life maximization, use Sleep mode with RTCC active (~500 nA) and wake only on external interrupts. Place a 0.1 uF decoupling capacitor within 5 mm of each VDD pin (pins 8, 19 are VSS; pin 20 is VDD on this package) to suppress switching transients.
Route the ICSP clock (PGC, pin 17) and data (PGD, pin 18) traces away from high-frequency switching nodes and keep them under 50 mm to maintain reliable in-circuit programming. The MCLR pin (pin 1) requires a 10 kohm pull-up to VDD and a 100 nF capacitor to ground for proper reset behavior. Keep analog inputs (AN0-AN3) traces short and away from digital switching lines to minimize ADC noise coupling.
Do not exceed the absolute maximum VDD of 4.0V or damage will occur. The 10-bit ADC requires the bandgap reference to be stable for at least 20 us before conversion starts. When migrating firmware from PIC24F08KA101 to PIC24F04KA201, verify that code size does not exceed 4KB or Flash write errors will occur. The configuration bits must be set correctly for the oscillator mode or the device will not start.
Compliance Information
RoHS compliant per Microchip product page. Halogen-free per GlobalSpec datasheet. Not AEC-Q100 qualified - for automotive applications consider PIC24F16KA301-E/SS extended temperature variant.
