PIC24F16KA101-I/SS - 16KB Flash 16MIPS XLP MCU | Microchip
MPN: PIC24F16KA101-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.5243 | $4.52 |
| 10 | $4.06 | $40.60 |
| 100 | $3.62 | $362.00 |
| 500 | $3.18 | $1,590.00 |
| 1,000 | $2.74 | $2,740.00 |
PIC24F16KA101-I/SS Overview
A 16-bit microcontroller (MCU) is a single-chip computer that executes arithmetic and logic operations on 16-bit-wide data words in a single instruction cycle, enabling higher code density and faster signal-processing throughput than 8-bit cores. The PIC24F family sits within Microchip's broader MCU taxonomy of MCU -> 16-bit MCU -> Flash MCU -> XLP low-power MCU -> PIC24F XLP series, targeting battery-powered and energy-harvesting designs where nanoWatt-class sleep current matters as much as active MIPS.
Key features include an integrated 32 MHz internal oscillator, 10-bit ADC, multiple timers (Timer1/Timer2/Timer3 with RTCC), and ultra-low-power sleep modes with currents as low as 20 nA in deep sleep. The device operates from 1.8 V to 3.6 V across an industrial -40 °C to +85 °C temperature range and supports I²C, SPI, IrDA, and UART/USART serial connectivity for sensor and peripheral interfacing.
The PIC24F16KA101 uses a 16-bit modified Harvard RISC architecture with hardware multiply/accumulate support, enabling efficient DSP-style signal conditioning on the same die. The integrated nanoWatt XLP technology provides multiple power-saving modes (Sleep, Deep Sleep, Retention) plus DSBOR (Deep Sleep Brown-Out Reset) and DSWDT (Deep Sleep Watchdog Timer), allowing the MCU to wake autonomously from external events while consuming minimal standby current.
Typical applications include battery-powered IoT sensor nodes, wearable health monitors, remote controls, low-power wireless sensor hubs, energy-harvesting edge devices, and industrial data loggers. The compact SSOP-20 footprint suits space-constrained PCB layouts while the robust peripheral set reduces external component count.
When designing with this MCU, size the decoupling network close to the VDDCORE/VDD pins and route the analog AVDD/AVSS pair as a star connection. Use the RTCC and Deep Sleep modes strategically - the 20 nA deep sleep current enables multi-year coin-cell battery life for periodic sensor wake-up duty cycles.
This page synthesizes distributor pricing, same-package drop-in alternatives, and application-specific design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24F16KA101-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 PIC24F16KA101-I/SS (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Timers, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F16KA101-I/MQ
✅ Drop-In✓ In Stock
$1.65 / Unit
View Datasheet →PIC24F16KA101T-I/SS
✅ Drop-In✓ In Stock
$1.38 / Unit
View Datasheet →PIC24F16KA101-E/SS
✅ Drop-In✓ In Stock
$1.72 / Unit
View Datasheet →PIC24F08KA101-I/SS
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC24F08KL201-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24F16KA101-I/SS Maximum Ratings & Electrical Characteristics
| Core Processor | PIC24F |
| Core Size | 16-Bit |
| Maximum Clock Frequency | 32 MHz |
| Performance (MIPS) | 16 MIPS |
| Program Memory (Flash) | 16 KB (5.5K x 24) |
| Data RAM | 1.5 KB (1.5K x 8) |
| EEPROM | 512 B |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Number of I/O Pins | 18 |
| ADC Resolution | 10-bit |
| Package / Case | 20-SSOP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 °C to +85 °C (Industrial) |
| Connectivity | I²C, IrDA, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Oscillator Type | Internal |
| RoHS Status | Compliant |
| Lead-Free / Halogen-Free | Halogen-Free Compliant |
PIC24F16KA101-I/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input |
| Pin 2 | RA0 — Port A bit 0 / analog input |
| Pin 3 | RA1 — Port A bit 1 / analog input |
| Pin 4 | RA2 — Port A bit 2 / analog input / CVREF |
| Pin 5 | RA3 — Port A bit 3 / analog input |
| Pin 6 | RA4 — Port A bit 4 |
| Pin 7 | RA5 — Port A bit 5 / VDDCore sense |
| Pin 8 | VSS — Ground |
| Pin 9 | OSC1 — Oscillator input / CLKI |
| Pin 10 | OSC2 — Oscillator output / CLKO |
| Pin 11 | RB0 — Port B bit 0 / programming |
| 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 / ICS PGC |
| Pin 18 | RB7 — Port B bit 7 / ICS PGD |
| Pin 19 | AVSS — Analog ground |
| Pin 20 | VDD — Positive supply |
Typical Applications
PIC24F16KA101-I/SS is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Wearable Health Monitors, Remote Controls and Consumer IR Devices, Industrial Data Loggers, Energy-Harvesting Edge Devices, HVAC and Building Automation Sensors.
Battery-Powered IoT Sensor Nodes
The PIC24F16KA101-I/SS's nanoWatt XLP architecture and 20 nA Deep Sleep current make it ideal for battery-powered IoT sensor nodes that wake periodically to read sensors and transmit via SPI/UART. With 16 KB Flash and 1.5 KB RAM it can host a simple protocol stack plus application logic, and its 1.8-3.6 V range supports direct coin-cell or 2xAA operation. The SSOP-20 footprint keeps PCB area minimal, which is critical for compact wireless sensor enclosures.
Recommended
Wearable Health Monitors
Wearables demand multi-year battery life with periodic biometric measurements, which aligns perfectly with the PIC24F16KA101-I/SS's deep-sleep nanoWatt XLP modes and integrated 10-bit ADC for sensor reads. The 32 MIPS performance supports on-chip DSP for heart-rate or step-counting post-processing. Its compact SSOP-20 package is well suited to slim wearable form factors where PCB area is at a premium.
Recommended
Remote Controls and Consumer IR Devices
Low-cost remote controls benefit from the PIC24F16KA101-I/SS's IrDA/UART support, integrated timers for carrier generation, and nanoWatt sleep to extend coin-cell life to multi-year horizons. With 16 MIPS it can decode IR protocols (RC5, NEC, SIRC) in firmware while leaving headroom for custom features. The 18 GPIOs easily handle keypad scanning plus IR LED drive and indicator LEDs.
Recommended
Industrial Data Loggers
Industrial data loggers that record sensor readings to EEPROM benefit from the PIC24F16KA101-I/SS's 512 B EEPROM for non-volatile parameter storage and 16 KB Flash for time-stamped logging firmware. The 10-bit ADC reads analog sensors directly, while I²C/SPI interfaces digital sensors. The wide 1.8-3.6 V operating range simplifies integration with 3.3 V industrial sensor chains.
Recommended
Energy-Harvesting Edge Devices
Energy-harvesting edge devices such as solar or vibration-powered wireless switches require the PIC24F16KA101-I/SS's extreme low Deep Sleep current (approximately 20 nA) to operate from harvested micro-power. The fast wake from sleep via DSWDT or RTCC supports event-driven transmissions. Internal oscillator eliminates crystal power for switching energy without BOM inflation.
Recommended
HVAC and Building Automation Sensors
Building automation sensors (temperature, humidity, CO₂) benefit from the PIC24F16KA101-I/SS's low-power ADC scanning duty cycle, integrated timers for periodic wake, and I²C/SPI for sensor interfacing. The 16-bit core handles BME280/BME680-style environmental sensor reads and protocol framing. Industrial -40/+85 °C rating ensures reliability in ceiling-mounted enclosures.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F16KA101-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F16KA101T-I/SS | PIC24F16KA101-E/SS | PIC24F08KA101-I/SS | PIC24F08KL201-I/SS |
|---|---|---|---|---|---|
| Package | 20-SSOP | 20-SSOP (same) | 20-SSOP (same) | 20-SSOP (same) | 20-SSOP (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 16 KB | 16 KB | 8 KB | 8 KB |
| Data RAM | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB | 1 KB |
| EEPROM | 512 B | 512 B | 512 B | 512 B | 256 B |
| Maximum Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +125 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| Operating Voltage | 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 |
Key Differentiators
- Highest Flash memory in SSOP-20 PIC24F XLP family (vs PIC24F08KA101-I/SS)
- Industrial-grade variant with -40/+85 °C range (vs PIC24F16KA101-E/SS)
- Tape-and-reel packaging option (vs PIC24F16KA101T-I/SS)
Design Notes
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 20) and a bulk 1-10 µF capacitor nearby. For noise-sensitive analog reads, add a separate AVDD filter (10 Ω + 100 nF) on the analog supply pin to keep ADC accuracy stable across deep-sleep wake transitions. Estimated: deep-sleep current is approximately 20 nA with RTCC active per Microchip nanoWatt XLP data.
Route the SSOP-20 land pattern with at least 0.2 mm trace width and 0.5 mm clearance for hand-reworkability. Keep the MCLR reset circuit (10 kΩ pull-up + 100 nF to MCLR) within 5 mm of pin 1 to avoid false resets. The ICSP pins RB6/RB7 (PGD/PGC) should be brought out to a programming header or test pads for in-circuit debug.
Do not assume the internal oscillator is accurate enough for UART baud rates without calibration - use the FRCPLL or FRC postscaler with auto-tune against the secondary 32 kHz crystal for precise serial timing. Watch for I/O pin remapping conflicts when using PPS on this family; consult the I/O map in the datasheet to avoid silent peripheral failures.
Compliance Information
RoHS compliant and Halogen-Free per Microchip product environmental compliance information. Not AEC-Q100 qualified - choose automotive-grade parts from the PIC24F family for vehicle applications.
