PIC24F08KL301T-I/SS - 8KB Flash 32MHz XLP 16-bit MCU | Microchip
MPN: PIC24F08KL301T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.66 | $16.60 |
| 100 | $1.43 | $143.00 |
| 500 | $1.21 | $605.00 |
| 1,000 | $1.04 | $1,040.00 |
| 3,000 | $0.92 | $2,760.00 |
PIC24F08KL301T-I/SS Overview
A PIC microcontroller is a compact integrated circuit that combines a CPU, non-volatile program memory (Flash), working memory (RAM), data EEPROM, and configurable peripherals on a single silicon die. Within the broader hierarchy, the PIC24F sits between 8-bit PIC16/PIC18 devices and the higher-end PIC32MX/dsPIC families, offering 16-bit instructions and a wider data path for improved computational throughput on low-power applications. It belongs to the power-management IC ecosystem in the sense that it actively minimizes system energy consumption via XLP technology.
Key features include a 10-bit ADC with multiple conversion channels, an 8-bit DAC reference, three 16-bit timers, two comparators, two UART/I2C/SPI MSSP peripherals, and a charge time measurement unit (CTMU) for capacitive touch sensing. The 10-bit ADC supports automatic sampling and conversion, while the CTMU enables touch buttons or sliders without external ICs. A configurable low-power RTCC with calendar mode supports years, months, days, hours, minutes, and seconds.
Typical applications include battery-powered sensor nodes, wearable health monitors, e-metering, low-cost remote controls, and capacitive-touch user interfaces. The wide 1.8V-3.6V supply range allows direct Li-ion or 2xAA operation, while the SSOP-20 footprint is friendly to hand-soldered prototypes and cost-sensitive production runs.
When designing with this part, ensure VDD decoupling uses a 100nF ceramic cap placed within 5 mm of the VDD pin, and provide a bulk 1 uF-10 uF cap for transient load events. The MCLR pin must be pulled high through a 10 kohm resistor for reliable reset behavior, and unused I/O pins should be configured as outputs driven low to minimize leakage.
Drop-in alternatives for PIC24F08KL301T-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 PIC24F08KL301T-I/SS (same form factor and footprint) — differing in ADC, Operating Temperature, Package, Core, EEPROM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F08KL301-I/SS
✅ Drop-In✓ In Stock
$1.12 / Unit
View Datasheet →PIC24F08KL301T-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24F08KL301-E/SS
✅ Drop-In✓ In Stock
$1.84 / Unit
View Datasheet →PIC24F08KL201T-I/SS
✅ Drop-In✓ In Stock
$0.65 / Unit
View Datasheet →PIC24F08KA102T-I/SS
✅ Drop-In✓ In Stock
$2.25 / Unit
View Datasheet →PIC24F08KL302T-I/SS
✅ Drop-In✓ In Stock
$1.62 / Unit
View Datasheet →PIC24F08KL301T-I/SS Maximum Ratings & Electrical Characteristics
| Core | PIC24F (16-bit RISC) |
| Family | PIC24F XLP (nanoWatt XLP) |
| Program Memory (Flash) | 8 KB (2.75K x 24 instruction words) |
| SRAM | 1 KB |
| EEPROM | 512 bytes |
| Maximum CPU Clock | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| ADC | 10-bit, multiple channels |
| Timers | 3 x 16-bit |
| Comparators | 2 |
| Communication Peripherals | MSSP (I2C/SPI), UART |
| CTMU (Capacitive Touch) | Yes |
| Package | 20-pin SSOP (5.30 mm body width, 0.65 mm pitch) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Run-Mode Current | < 350 uA/MHz at 1.8 V (per datasheet) |
PIC24F08KL301T-I/SS Pin Configuration
| Pin 1 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| Pin 2 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| Pin 3 | RA2/AN2 — Digital I/O / Analog input channel 2 |
| Pin 4 | RA3/AN3 — Digital I/O / Analog input channel 3 |
| Pin 5 | RA4/AN4 — Digital I/O / Analog input channel 4 |
| Pin 6 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 7 | VSS — Ground reference |
| Pin 8 | OSCI/RA5 — Crystal oscillator input / Digital I/O |
| Pin 9 | OSCO/RA6 — Crystal oscillator output / Digital I/O |
| Pin 10 | RB0/AN5 — Digital I/O / Analog input channel 5 |
| Pin 11 | RB1/AN6 — Digital I/O / Analog input channel 6 |
| Pin 12 | RB2/AN7 — Digital I/O / Analog input channel 7 |
| Pin 13 | RB3/AN8 — Digital I/O / Analog input channel 8 |
| Pin 14 | RB4 — Digital I/O port B |
| Pin 15 | RB5 — Digital I/O port B |
| Pin 16 | RB6/PGC — Digital I/O / ICSP clock (programming/debug) |
| Pin 17 | RB7/PGD — Digital I/O / ICSP data (programming/debug) |
| Pin 18 | RC0 — Digital I/O port C |
| Pin 19 | RC1 — Digital I/O port C |
| Pin 20 | MCLR/RB8 — Master Clear (reset, active-low) / Digital I/O |
Typical Applications
PIC24F08KL301T-I/SS is suitable for 6 applications: Battery-Powered Wireless Sensor Nodes, Wearable Health and Fitness Devices, Capacitive Touch User Interfaces, Smart Meters and Energy Monitoring, Low-Cost Remote Controls and HIDs, Industrial Sensor and Actuator Nodes.
Battery-Powered Wireless Sensor Nodes
The PIC24F08KL301T-I/SS is well suited for battery-powered wireless sensor nodes because its nanoWatt XLP technology delivers run-mode currents below 350 uA/MHz at 1.8V and sub-microamp sleep currents, enabling multi-year operation on a single CR2032 coin cell. The 32 MHz core and 8 KB Flash comfortably host small protocol stacks such as proprietary sub-GHz, BLE-beacon, or LoRaWAN node firmware, while the CTMU supports integrated capacitive water- or soil-moisture sensing without a separate touch IC. Operating from 1.8V-3.6V matches Li-ion, 2xAA, and regulated 3.3V rails, so the SSOP-20 footprint drops directly onto coin-cell powered sensor PCBs.
Recommended
Wearable Health and Fitness Devices
For wearable health devices such as heart-rate patches, step counters, and BLE fitness bands, the PIC24F08KL301T-I/SS provides the right balance of 16-bit throughput and XLP-class power efficiency. Its 10-bit ADC plus two comparators can digitize photoplethysmography (PPG) signals, while the MSSP can drive an I2C-connected accelerometer or BLE module directly. The CTMU enables touch/wake-on-tap buttons on the wearable enclosure without external switches. Industrial -40C to +85C operation covers body-temperature wear, and the SSOP-20 package fits sub-15 mm square PCBs typical of wristbands.
Recommended
Capacitive Touch User Interfaces
The PIC24F08KL301T-I/SS shines in capacitive touch interfaces because its integrated CTMU measures touch electrode RC charge time directly, supporting 8-16 button layouts, sliders, and proximity wake-up without dedicated touch ICs. The 10-bit ADC samples the CTMU with adequate resolution for water-tolerant and glove-touch operation when paired with MPLAB touch libraries. The 8 KB Flash fits Microchip's mTouch reference firmware plus custom GUI logic, while 1 KB SRAM supports up to ~16 simultaneous touch state variables. SSOP-20 plus 1.8V-3.6V operation make it a strong fit for kitchen appliances and consumer touch panels.
Recommended
Smart Meters and Energy Monitoring
In electronic metering and energy monitoring, the PIC24F08KL301T-I/SS combines the PIC24F XLP efficiency with analog peripherals suited to current-sense and voltage-divider signal conditioning. The two comparators can implement zero-crossing detection for AC mains metering, while the 10-bit ADC digitizes the resulting analog signal chain at up to 100 ksps. EEPROM stores tariff tables and accumulated kWh counters that survive power outages, and the RTCC module tracks time-of-use schedules. Operating from 1.8V-3.6V enables both single-cell battery backup and regulated mains-power designs.
Recommended
Low-Cost Remote Controls and HIDs
For IR/RF remote controls, wireless presenters, and other human-interface devices, the PIC24F08KL301T-I/SS offers an optimized cost-down MCU with enough Flash for proprietary RF protocols, IR carrier generation, and button-debounce state machines. The MSSP can drive an SPI-attached sub-GHz transceiver for 2-way remote applications, while the CTMU supports capacitive slider volume controls on premium remote enclosures. Sleep currents in the sub-uA range extend battery life to multi-year levels on coin cells. The SSOP-20 footprint is friendly to the slim mechanical designs typical of remote-control PCBs.
Recommended
Industrial Sensor and Actuator Nodes
Industrial sensor and actuator nodes benefit from the PIC24F08KL301T-I/SS combination of PIC24F core speed, 10-bit ADC, dual comparators, and XLP low-power operation. The device can drive an RS-485 transceiver via UART for industrial bus protocols, monitor 4-20 mA current loops, or control a small actuator driver FET via PWM. Industrial -40C to +85C operation covers most cabinet environments, and the SSOP-20 package is hand-solderable for prototype boards. Migration to the -E/SS extended-grade variant covers harsher outdoor or motor-control applications without PCB changes.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F08KL301T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F08KL301-I/SS | PIC24F08KL301T-E/SS | PIC24F08KL301-E/SS | PIC24F08KL201T-I/SS | PIC24F08KA102T-I/SS | PIC24F08KL302T-I/SS |
|---|---|---|---|---|---|---|---|
| Package | 20-pin SSOP (5.30 mm) | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 8 KB (2.75K x 24) | 8 KB | 8 KB | 8 KB | 4 KB (-50%) | 8 KB | 8 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 512 B (-50%) | 1 KB | 1 KB |
| Maximum CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 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 | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| CTMU (Capacitive Touch) | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Industrial temperature tape-and-reel shipping (vs PIC24F08KL301-I/SS)
- 8 KB Flash versus cost-down 4 KB variant (vs PIC24F08KL201T-I/SS)
- PIC24F KL core versus PIC18 KA core (vs PIC24F08KA102T-I/SS)
Design Notes
Estimated: at 32 MHz full-speed operation the PIC24F08KL301T-I/SS consumes roughly 11.2 mA (32 MHz x 350 uA/MHz) at 1.8V. To extend battery life in sensor-node applications, drop to the 8 MHz internal RC oscillator during active sampling and enter Sleep (sub-uA) between events. The on-chip LDO bypass pin (if present on the SSOP-20 variant) should be decoupled with a 100 nF ceramic to reduce VDD ripple during current transients.
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 6) and a 1 uF to 10 uF bulk capacitor nearby for transient load events. The MCLR pin (pin 20) must be pulled to VDD through a 10 kohm resistor to ensure reliable reset; if external reset is not used, the pin can be left unconnected but with the pull-up still recommended. Route the ICSP lines (PGC pin 16 and PGD pin 17) away from switching signals to keep in-circuit debug robust.
Do not exceed the absolute maximum VDD of 4.0V (3.6V recommended operating) or the device may latch up. Unused I/O pins must be configured as outputs driven low (or high) rather than left floating, otherwise the input-stage leakage currents can pull tens of microamps and defeat the XLP sleep target. When using the CTMU, calibrate the on-chip current source at the operating temperature, as charge time drift can otherwise push touch sensitivity out of spec.
Compliance Information
RoHS compliance per Microchip product page and DigiKey listing. AEC-Q100 qualification not stated in the verified web data for the industrial -I/SS variant; the part targets industrial and consumer applications rather than automotive.
