PIC24F08KA102T-I/SS - 16-bit XLP MCU, 8KB Flash, 28-SSOP | Microchip
MPN: PIC24F08KA102T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.5 | $3.50 |
| 10 | $3.2 | $32.00 |
| 100 | $2.85 | $285.00 |
| 500 | $2.5 | $1,250.00 |
| 1,000 | $2.25 | $2,250.00 |
PIC24F08KA102T-I/SS Overview
What is a 16-bit microcontroller? A 16-bit MCU is a microprocessor with a 16-bit data path, instruction word, and ALU, sitting between 8-bit MCUs (simple, low-power) and 32-bit MCUs (high-performance). 16-bit MCUs like the PIC24F family balance code density, peripheral integration, and low power for cost-sensitive embedded applications. The PIC24F XLP series specifically targets battery-powered designs, with nanoWatt XLP technology enabling deep-sleep currents below 1 uA.
Key features include eXtreme Low Power (XLP) technology with deep-sleep mode (DSBOR, DSWDT, RTCC), 16-bit-wide data path, 8-channel 10-bit ADC, multiple communication peripherals (UART, SPI, I2C), and up to 23 I/O pins. The nanoWatt XLP technology delivers industry-leading low-power performance for battery-powered applications, with multiple sleep modes and a real-time clock/calendar (RTCC) capable of operating from a separate backup supply.
Technically, the PIC24F08KA102 uses a modified Harvard architecture with separate program and data buses, a 16-bit instruction word, and hardware divide/multiplier support. The wide instruction word (24-bit) accommodates 16-bit ALU operations and direct addressing of up to 8KB of Flash. The integrated 10-bit ADC supports up to 200 ksps conversion rates with multiple trigger sources, suitable for sensor monitoring in industrial and consumer applications.
Typical applications include battery-powered IoT sensor nodes, portable medical devices, energy harvesting systems, consumer electronics with touch or display interfaces, and low-power industrial sensor monitoring. The combination of 16 MIPS performance, 1.8V minimum supply, and deep-sleep modes below 1 uA makes it suitable for designs that require years of battery life.
When designing with this device, prioritize decoupling capacitor placement near VDD pins and ensure the RTCC backup battery circuit uses a low-leakage diode path. The 28-SSOP package offers a larger land pattern than QFN alternatives but improves manufacturing yield for hand-soldered prototypes and low-volume production.
This page synthesizes Microchip distributor pricing, same-family pin-compatible drop-in alternatives from the PIC24F08KA102 family, and practical low-power design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24F08KA102T-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 PIC24F08KA102T-I/SS (same form factor and footprint) — differing in Package, ADC, Timers, I/O Pins, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F08KA102-I/SS
✅ Drop-In✓ In Stock
$2.05 / Unit
View Datasheet →PIC24F08KA102T-I/SO
✅ Drop-In✓ In Stock
$1.94 / Unit
View Datasheet →PIC24F08KA102T-I/ML
✅ Drop-In✓ In Stock
$2.05 / Unit
View Datasheet →PIC24F04KA201-I/SS
✅ Drop-In✓ In Stock
$1.67 / Unit
View Datasheet →PIC24F08KA101-I/P
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →PIC24F04KL101-I/SO
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC24F08KA102T-I/SS Maximum Ratings & Electrical Characteristics
| Family | PIC24F XLP |
| Core | 16-bit PIC |
| Program Memory (Flash) | 8 KB (2.75K x 24 instruction words) |
| RAM | 1 KB |
| EEPROM | 512 B |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 23 (typical for 28-pin SSOP variant) |
| ADC | 10-bit, up to 16 channels |
| Timers | 5 x 16-bit timers |
| Communication Peripherals | UART, SPI, I2C |
| Operating Temperature | -40 C to +85 C (Industrial, I-temp) |
| Package | 28-SSOP |
| Packaging | Tape and Reel (T suffix) |
| Low-Power Technology | nanoWatt XLP with deep-sleep modes (DSBOR, DSWDT, RTCC) |
| RTCC | Real-Time Clock Calendar with backup supply support |
| RoHS Status | Compliant |
PIC24F08KA102T-I/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (Reset) input, active low |
| Pin 2 | RA0 — PORTA bit 0, analog/digital I/O |
| Pin 3 | RA1 — PORTA bit 1, analog/digital I/O |
| Pin 4 | RB0 — PORTB bit 0, digital I/O, programming clock |
| Pin 5 | RB1 — PORTB bit 1, digital I/O |
| Pin 6 | RB2 — PORTB bit 2, digital I/O |
| Pin 7 | RB3 — PORTB bit 3, digital I/O |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — Oscillator crystal input or external clock |
| Pin 10 | OSC2 — Oscillator crystal output |
| Pin 11 | RB4 — PORTB bit 4, digital I/O |
| Pin 12 | RB5 — PORTB bit 5, digital I/O, programming data |
| Pin 13 | RB6 — PORTB bit 6, digital I/O, ICSPCLK |
| Pin 14 | RB7 — PORTB bit 7, digital I/O, ICSPDAT |
| Pin 15 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 16 | RC0 — PORTC bit 0, digital I/O |
| Pin 17 | RC1 — PORTC bit 1, digital I/O |
| Pin 18 | RC2 — PORTC bit 2, digital I/O |
| Pin 19 | RC3 — PORTC bit 3, digital I/O |
| Pin 20 | RC4 — PORTC bit 4, digital I/O |
| Pin 21 | RC5 — PORTC bit 5, digital I/O |
| Pin 22 | RC6 — PORTC bit 6, digital I/O, TX |
| Pin 23 | RC7 — PORTC bit 7, digital I/O, RX |
| Pin 24 | RA2 — PORTA bit 2, analog/digital I/O |
| Pin 25 | RA3 — PORTA bit 3, analog/digital I/O |
| Pin 26 | RA4 — PORTA bit 4, analog/digital I/O |
| Pin 27 | RA5 — PORTA bit 5, analog/digital I/O |
| Pin 28 | VSS — Ground reference |
Typical Applications
PIC24F08KA102T-I/SS is suitable for 7 applications: Battery-Powered IoT Sensor Nodes, Portable Medical Devices, Energy Harvesting Systems, Consumer Electronics with Display Interfaces, Low-Power Industrial Sensor Monitoring, Home Automation and Smart Home Devices, HMI and User Interface Controllers.
Battery-Powered IoT Sensor Nodes
The PIC24F08KA102T-I/SS is ideal for battery-powered IoT sensor nodes due to its nanoWatt XLP technology with deep-sleep currents below 1 uA and RTCC operating from a backup battery. The 1.8V to 3.6V supply range supports single-cell lithium or dual-cell alkaline chemistries. Its 16 MIPS at 32 MHz gives enough headroom for periodic sensor reads, while the 10-bit ADC handles up to 16 analog sensor channels. Combined with 8KB Flash and 1KB RAM, it fits typical sensor-fusion firmware, leaving room for protocol stacks like Modbus or proprietary low-power wireless drivers.
Recommended
Portable Medical Devices
For portable medical devices such as glucose meters, pulse oximeters, and patient wearables, the PIC24F08KA102T-I/SS offers the low-power performance essential for multi-year battery life. The integrated RTCC supports accurate timestamping of medical events while operating from a backup coin cell. The 10-bit ADC is suitable for biosensor signal conditioning, and the 16 MIPS performance is adequate for simple algorithm processing. Combined with hardware AES-capable peripherals in the PIC24F family, the device can support secure data logging required by medical data integrity standards.
Recommended
Energy Harvesting Systems
Energy harvesting applications benefit from the PIC24F08KA102T-I/SS deep-sleep modes that consume sub-microamp current, allowing energy-neutral designs powered by solar, thermal, or vibrational harvesters. The RTCC can be powered from a small backup capacitor while the main MCU sleeps, enabling accurate wake-up timing without external crystals. The integrated 10-bit ADC monitors harvest voltage and load conditions, while UART/SPI/I2C interfaces support communication with energy-harvesting PMICs. The 1.8V minimum VDD aligns well with typical single-cell solar or thermal harvester outputs through a boost converter.
Recommended
Consumer Electronics with Display Interfaces
The PIC24F08KA102T-I/SS supports consumer electronics with simple display interfaces, driving character LCDs or low-resolution OLED panels through its 23 I/O pins and SPI/I2C peripherals. The 32 MHz CPU speed handles refresh routines and UI logic, while the 8KB Flash stores fonts, menus, and configuration profiles. Low-power XLP modes allow battery-operated devices to idle when the display is off, extending usage time. The 1.8V to 3.6V supply range works with single-cell Li-Ion or 2x AA alkaline configurations common in handheld consumer products.
Recommended
Low-Power Industrial Sensor Monitoring
Industrial sensor monitoring applications benefit from the PIC24F08KA102T-I/SS industrial temperature range (-40C to +85C) and robust peripheral set. The 10-bit ADC with up to 16 channels supports multi-sensor monitoring with 200 ksps conversion rates, suitable for process variables like temperature, pressure, and flow. UART peripherals enable Modbus RTU or RS-485 communication, while the wide VDD range (1.8V to 3.6V) accommodates industrial 3.3V and 5V-derived rails with proper level shifting. The XLP technology supports remote, battery-powered installations where grid power is unavailable.
Recommended
Home Automation and Smart Home Devices
Home automation devices like smart thermostats, wireless switches, and security sensors leverage the PIC24F08KA102T-I/SS low-power XLP modes for years of battery operation. The 8KB Flash supports Z-Stack or proprietary RF protocol stacks for sub-GHz wireless communication through companion transceivers. The integrated RTCC enables time-based scheduling without external RTC chips, and the 10-bit ADC reads sensors like light, temperature, and motion detectors. The 1.8V minimum supply aligns with energy harvesting designs powered by indoor light or thermal gradients.
Recommended
HMI and User Interface Controllers
The PIC24F08KA102T-I/SS fits HMI controller applications as a master or slave MCU driving user interfaces with keypads, LED indicators, and small graphic LCDs. The 23 I/O pins support multiplexed keypad scanning and LED PWM dimming through hardware timers, while the 16 MIPS performance handles debounce filtering and UI state machines. UART/SPI interfaces connect to a host processor or display controller. The industrial temperature range ensures reliable operation in enclosures exposed to ambient temperature swings.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F08KA102T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F08KA102-I/SS | PIC24F08KA102T-I/SO | PIC24F08KA102T-I/ML | PIC24F04KA201-I/SS | PIC24F04KL101-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) |
| Flash Memory | 8 KB | 8 KB | 8 KB | 8 KB | 4 KB (-50%) | 4 KB (-50%) |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 512 B (-50%) | 512 B (-50%) |
| Maximum CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Low-Power Technology | nanoWatt XLP with Deep Sleep (DSBOR, DSWDT, RTCC) | nanoWatt XLP (same) | nanoWatt XLP (same) | nanoWatt XLP (same) | nanoWatt XLP (same) | nanoWatt XLP (same) |
| Packaging | Tape & Reel | Tube | Tape & Reel | Tape & Reel | Tube | Tube |
Key Differentiators
- nanoWatt XLP technology with deep-sleep current below 1 uA (vs PIC24F08KA102-I/SS)
- 8KB Flash vs 4KB on KA101/KA201 family (vs PIC24F04KA201-I/SS)
- Tape-and-reel packaging for automated SMT assembly (vs PIC24F04KL101-I/SO)
- Industrial temperature range -40C to +85C with full peripheral operation (vs PIC24F08KA102-E/SO (extended temp))
Design Notes
Estimated: At 3.3V VDD with the device in deep sleep (RTCC active, peripherals off), the PIC24F08KA102T-I/SS typically draws under 1 uA, enabling 20+ year battery life on a 220 mAh coin cell. To achieve the lowest deep-sleep current, disable all unused peripherals via PMD registers, switch to the internal low-power RC oscillator (FRC) before entering sleep, and avoid floating digital I/O pins - configure unused pins as outputs driving low or inputs with the internal weak pull-up enabled. The DSBOR and DSWDT features in deep sleep allow retention of brown-out reset state and watchdog functionality at sub-microamp levels.
Place a 100 nF decoupling capacitor as close as possible to each VDD pin, with a single 10 uF bulk capacitor on the VDD rail. For SSOP-28 designs, both VDD pins (pin 15 in the SSOP-28 layout) and VSS pins should each have local decoupling. Use a star-ground topology where the digital ground returns directly to the VSS pin via the shortest path. Avoid routing noisy signals (high-speed digital, switching regulators) across or near the analog AVSS/AVDD pair, even though the PIC24F08KA102 shares analog and digital supply rails on smaller packages.
Common pitfalls: (1) Do not assume the KA102 (8KB) and KA101 (4KB) are interchangeable - check application code size and EEPROM requirements; (2) The 'T' suffix indicates tape-and-reel packaging only, NOT a temperature grade - that is set by 'I' (-40C to +85C) or 'E' (-40C to +125C); (3) The MCLR pin should be pulled high through a 10 kOhm resistor for normal operation; do not leave it floating; (4) ICSP programming requires RB6/ICSPDAT and RB7/ICSPCLK pins to be reserved and accessible on the PCB; (5) RTCC requires an external 32.768 kHz crystal connected to the SOSCO/SOSCI pins for accurate timekeeping.
For 28-SSOP layouts, allocate at least 0.4 mm of clearance between traces and the SSOP body, and use 0.1 mm wide traces for signal routing with 0.2 mm clearance to limit crosstalk. The exposed pad on the SSOP package (if present in the variant) should be soldered to a copper pour connected to VSS for thermal and mechanical integrity. Avoid routing signals under the SSOP body where visual inspection is impossible. For prototype builds, consider the 28-SOIC variant (PIC24F08KA102T-I/SO) for easier hand-soldering, or the 28-QFN (PIC24F08KA102T-I/ML) for the smallest footprint at production volumes.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose a separate automotive-grade PIC24 variant for AEC-Q100 applications. Halogen-free per Microchip environmental compliance documentation.
