PIC24F16KA101-I/P - 16KB Flash XLP 16-bit MCU | Microchip
MPN: PIC24F16KA101-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.66 | $26.60 |
| 100 | $2.37 | $237.00 |
| 500 | $2.13 | $1,065.00 |
| 1,000 | $1.9 | $1,900.00 |
PIC24F16KA101-I/P Overview
A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory, data memory, and programmable peripherals on a single chip. The 16-bit class (such as PIC24) sits between 8-bit MCUs (PIC16/PIC18) and 32-bit MCUs (PIC32, ARM Cortex-M) and is typically chosen when developers need C-friendly data widths, hardware multipliers, and richer peripherals while staying within tight power and cost budgets. Within Microchip's taxonomy, PIC24 belongs to the broader dsPIC/PIC24 family of 16-bit microcontrollers and is widely used in general-purpose embedded control.
Key features of the PIC24F16KA101-I/P include: a 32 MHz internal oscillator, 16 MIPS throughput, 16 KB self-programmable Flash program memory, 2 KB SRAM, 512 B EEPROM data memory, up to 18 I/O pins, an integrated RTCC, a 10-bit A/D converter with up to 12 channels, and three 16-bit timers. Communication peripherals include one I2C™, one SPI™, and one UART. The 'I' industrial temperature grade specifies -40 °C to +85 °C operation.
The device targets applications such as battery-powered sensor nodes, low-energy medical devices, remote controls, portable instrumentation, and IoT edge nodes where sleep-mode current and CPU wake-up time dominate total energy budget.
When designing with this part, plan the deep-sleep wake-up source (RTCC, WDT, or external interrupt) carefully because nanoWatt XLP sleep current is typically the dominant factor for battery-life calculations.
Drop-in alternatives for PIC24F16KA101-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 PIC24F16KA101-I/P (same form factor and footprint) — differing in Package, ADC, Timers, I/O Pins, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F08KA101-I/P
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View Datasheet →PIC24F08KA101-E/P
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$1.74 / Unit
View Datasheet →PIC24F04KL101-I/P
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View Datasheet →PIC24F04KL100-I/P
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View Datasheet →PIC24F16KA101-I/P Maximum Ratings & Electrical Characteristics
| Product Type | 16-bit Microcontroller (MCU) |
| Core Architecture | PIC24F (PIC16/dsPIC family) Modified Harvard |
| Program Memory (Flash) | 16 KB (5.5K x 24 instruction words) |
| Data Memory (SRAM) | 2 KB |
| Data EEPROM | 512 B |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 18 (multiplexed) |
| A/D Converter | 10-bit, up to 12 channels |
| Timers | 3 x 16-bit Timer/Counter |
| Communication Peripherals | 1x I2C, 1x SPI, 1x UART |
| Special Features | nanoWatt XLP, RTCC, DSBOR, DSWDT, POR |
| Operating Temperature | -40 °C to +85 °C (Industrial) |
| Package | 20-pin PDIP (300 mil) |
| Mounting Type | Through-Hole |
| RoHS Status | Compliant |
PIC24F16KA101-I/P Pin Configuration
| Pin 1 | MCLR — Master Clear (Reset) input, active low |
| Pin 2 | RA0 — Digital I/O / analog AN0 |
| Pin 3 | RA1 — Digital I/O / analog AN1 |
| Pin 4 | RB0 — Digital I/O / PGED1 programming |
| Pin 5 | RB1 — Digital I/O / PGEC1 programming |
| Pin 6 | RB2 — Digital I/O / analog AN4 |
| Pin 7 | RB3 — Digital I/O / analog AN5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — Oscillator crystal input / CLKI |
| Pin 10 | OSC2 — Oscillator crystal output / CLKO |
| Pin 11 | RC0 — Digital I/O |
| Pin 12 | RC1 — Digital I/O |
| Pin 13 | RC2 — Digital I/O |
| Pin 14 | RC3 — Digital I/O |
| Pin 15 | RC4 — Digital I/O |
| Pin 16 | RC5 — Digital I/O |
| Pin 17 | RB4 — Digital I/O |
| Pin 18 | RB5 — Digital I/O |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
Typical Applications
PIC24F16KA101-I/P is suitable for 6 applications: Battery-Powered Sensor Node, Portable Medical Device, Remote Control / Consumer HMI, Industrial Sensor Interface, IoT Edge Node, Educational / Hobby Electronics.
Battery-Powered Sensor Node
The PIC24F16KA101-I/P is well-suited for battery-powered sensor nodes thanks to its nanoWatt XLP technology delivering sub-1 uA deep-sleep current and a wide 1.8-3.6 V VDD range that directly supports two-AA or single-cell Li-ion chemistries. With 16 MIPS throughput and a hardware 10-bit ADC, the MCU can wake from RTCC, sample a sensor, run a small DSP-style averaging loop, and return to sleep within microseconds. The 20-pin PDIP package is also friendly to hand-soldered prototype nodes, simplifying lab iteration versus fine-pitch QFN alternatives in the same family.
Recommended
Portable Medical Device
In portable medical devices such as pulse oximeters, glucometers, and digital thermometers, the PIC24F16KA101-I/P provides the right mix of 16-bit precision math, low-power sleep, and reliable 10-bit ADC signal conditioning. Its 16 KB Flash comfortably fits small RTOS-style firmware plus application code, while 2 KB SRAM handles stack and small buffers without external memory. The industrial -40 to +85 C temperature grade covers body-worn enclosures and is widely accepted for FDA Class II submission documentation at the BOM level.
Recommended
Remote Control / Consumer HMI
For TV remotes, smart-home key fobs, and small consumer HMI panels, the PIC24F16KA101-I/P delivers enough MIPS for matrix key-scanning and IR protocol encoding, while its XLP deep-sleep modes stretch battery life to multi-year levels. The 18 available I/O pins comfortably drive a 4x4 key matrix plus status LEDs and an IR transmitter. UART, SPI, and I2C peripherals enable connection to companion RF or BLE modules for higher-end remotes without external glue logic.
Recommended
Industrial Sensor Interface
In industrial 4-20 mA loop-powered transmitters and small PLC-style I/O modules, the PIC24F16KA101-I/P's 1.8-3.6 V operation and integrated 10-bit ADC handle signal conditioning from bridge sensors and thermistors without external ADCs. The 32 MHz core supports Modbus RTU protocol stacks over UART, while the I2C peripheral drives EEPROM for calibration storage. The 20-pin PDIP simplifies field-replacement designs where through-hole parts are preferred for harsh-environment serviceability.
Recommended
IoT Edge Node
The PIC24F16KA101-I/P acts as a low-cost IoT edge controller that aggregates sensor data, performs local decision-making, and forwards results to a higher-level gateway over UART or SPI. Its 16 KB Flash fits small MQTT-SN or CoAP client implementations when paired with a Wi-Fi or Sub-GHz module, and the 2 KB SRAM is sufficient for small packet buffers. The XLP deep-sleep current below 1 uA combined with RTCC wake-up is ideal for energy-harvesting or solar-powered IoT deployments.
Recommended
Educational / Hobby Electronics
For university embedded-systems courses and hobbyist projects, the PIC24F16KA101-I/P offers a robust 20-pin PDIP that students can hand-solder without specialized equipment. The PIC24 instruction set is well-documented in Microchip application notes and supported by MPLAB X IDE with free XC16 compiler, lowering the learning barrier for first-time 16-bit developers. With 16 KB Flash and 2 KB SRAM, the device runs typical academic projects such as PWM motor control, I2C peripherals, and small RTOS demonstrations.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F16KA101-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F16KA101-I/MQ | PIC24F08KA101-I/P | PIC24F08KA101-E/P | PIC24F04KL101-I/P | PIC24F04KL100-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin PDIP (300 mil) | 20-pin QFN (MQ) - NOT drop-in pinout | 20-pin PDIP (P) - same | 20-pin PDIP (P) - same | 20-pin PDIP (P) - same | 20-pin PDIP (P) - same |
| Program Flash | 16 KB | 16 KB | 8 KB | 8 KB | 4 KB | 4 KB |
| Data SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB | 256 B |
| Max 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 |
| 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 | 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 +125 C (Extended) | -40 C to +85 C | -40 C to +85 C |
Key Differentiators
- 16 KB Flash matches many firmware needs at a competitive price (vs PIC24F08KA101-I/P)
- Industrial temperature grade for non-extreme environments (vs PIC24F08KA101-E/P)
- Same Flash size in PDIP as in QFN surface-mount variant (vs PIC24F16KA101-I/MQ)
Design Notes
Estimated: When battery-life dominates your design, target the PIC24F16KA101-I/P's nanoWatt XLP deep-sleep modes. Configure the RTCC as the wake source for periodic sampling (e.g., one wake every 30 s), and keep the device in Sleep or Deep Sleep between events. Per the Microchip datasheet family, deep-sleep current is below 1 uA at 25 C, so a 220 mAh CR2032 coin cell can theoretically power a 1-second-per-minute wake cycle for several years.
Place a 100 nF decoupling capacitor as close as possible between the VDD pin (pin 20) and VSS pin (pin 19) of the PIC24F16KA101-I/P. For analog reference stability on the 10-bit ADC, add a 10 uF bulk capacitor at the board supply input. The 20-pin PDIP footprint gives you generous trace routing, but keep oscillator traces (OSC1/OSC2) short if you use an external crystal.
Do not confuse the PIC24F16KA101-I/P (PDIP, industrial -40 to +85 C) with the PIC24F16KA101-I/SO (SOIC surface-mount) or PIC24F16KA101-E/P (extended -40 to +125 C) variants - they share part numbers but different packages and temperature grades. Always verify the full MPN suffix (the trailing /P, /SO, /SS, /ML, /MQ, etc.) before placing a BOM line, since the wrong suffix may compile the same firmware but will not solder onto the same PCB footprint.
Compliance Information
RoHS compliant per Microchip product page. The /I/P suffix denotes industrial temperature grade (-40 to +85 C) - not AEC-Q100 qualified; automotive designs should select a Q100-grade PIC24 variant.
