PIC24FV16KA301-I/P - 16KB Flash, 16 MIPS XLP MCU | Microchip
MPN: PIC24FV16KA301-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.15 | $215.00 |
| 500 | $1.85 | $925.00 |
| 1,000 | $1.6 | $1,600.00 |
PIC24FV16KA301-I/P Overview
An MCU (microcontroller) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM, EEPROM), and peripherals such as ADC, timers, and communication interfaces. The PIC24F family sits in the hierarchy 8-bit PIC -> 16-bit PIC24F -> 32-bit PIC32, balancing 8-bit PIC simplicity with 16-bit MIPS performance. Within that hierarchy, the PIC24FV16KA301 belongs to the XLP sub-family optimized for ultra-low-power battery applications where active current, sleep current, and Deep Sleep mode retention matter as much as raw MIPS.
Key features include Deep Sleep mode with RTCC, DSBOR (Deep Sleep Brown-Out Reset), and DSWDT (Deep Sleep Watchdog Timer) for unattended battery operation; 5V-tolerant I/O enabling direct interfacing with 5V legacy peripherals; a 12-bit ADC with up to 16 channels and CTMU supporting capacitive touch and time measurement; and three 16-bit timers plus a Real-Time Clock and Calendar (RTCC). The 16 MIPS throughput delivers ample headroom for sensor fusion, digital control loops, and user-interface firmware in the same device.
Architecturally, the PIC24FV16KA301 uses a modified Harvard architecture with a 16-bit data path, 24-bit instruction word, and hardware Multiply/Divide unit. The integrated voltage regulator supports a wide 2.0V to 5.5V supply, with on-chip FRC (Fast RC) and LPRC (Low-Power RC) oscillators eliminating external crystals in cost-sensitive designs. The result is a deterministic, low-power, 16-bit MCU family suited for human-interface, sensor, and IoT endpoint designs.
Typical applications include battery-powered IoT sensor nodes, wearable health monitors, remote controls, energy harvesting endpoints, capacitive-touch user interfaces, and low-power industrial sensor transmitters. The 5V-tolerance also suits industrial 24V bus I/O nodes with a 5V regulator downstream.
When designing with this device, leverage the XLP peripherals (DSBOR, DSWDT, RTCC) to keep average current in Deep Sleep below 1 µA, allowing 10+ year battery life on a coin cell. Always de-couple VDD/VSS with a 0.1 µF ceramic capacitor placed within 5 mm of the pins.
This page synthesizes distributor pricing, drop-in 20-pin PDIP alternatives, and practical XLP design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24FV16KA301-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 PIC24FV16KA301-I/P (same form factor and footprint) — differing in Package, Program Memory (Flash), Operating Temperature, Core Architecture, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FV16KA301-E/P
✅ Drop-In✓ In Stock
$2.5 / Unit
View Datasheet →PIC24FV16KA302-I/P
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24F16KA301-I/P
✅ Drop-In✓ In Stock
$2.05 / Unit
View Datasheet →PIC24FV32KA301-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FV08KM101-I/P
✅ Drop-In✓ In Stock
$1.82 / Unit
View Datasheet →PIC24FV16KA301-I/P Maximum Ratings & Electrical Characteristics
| Program Memory (Flash) | 16 KB (5.5K x 24 instructions) |
| Data RAM | 2 KB |
| Data EEPROM | 512 B |
| CPU Core | 16-bit PIC24F (MIPS modified Harvard) |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage Range | 2.0 V to 5.5 V (5V tolerant) |
| I/O Pins | 17 |
| ADC | 12-bit, up to 16 channels |
| CTMU | Yes (Charge Time Measurement Unit) |
| Timers | 3 x 16-bit, 1 x 32-bit |
| RTCC | Yes (with Deep Sleep retention) |
| Deep Sleep Mode Peripherals | DSBOR, DSWDT, RTCC |
| Operating Temperature Range | -40 °C to +85 °C (industrial, -I suffix) |
| Package | 20-pin PDIP (0.300 in / 7.62 mm) |
| Mounting Type | Through-Hole |
| MSL Level | 1 (unlimited) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC24FV16KA301-I/P Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input; programming voltage input |
| Pin 2 | RA0 — GPIO / analog input / CTMU |
| Pin 3 | RA1 — GPIO / analog input / CTMU |
| Pin 4 | RB0 — GPIO / analog input / CTMU |
| Pin 5 | RB1 — GPIO / analog input / CTMU |
| Pin 6 | RB2 — GPIO / analog input / CTMU |
| Pin 7 | RB3 — GPIO / analog input / CTMU |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — Crystal oscillator input / external clock input |
| Pin 10 | OSC2 — Crystal oscillator output |
| Pin 11 | RB4 — GPIO / SDA1 (I2C data) |
| Pin 12 | RB5 — GPIO / SCL1 (I2C clock) |
| Pin 13 | RB6 — GPIO / PGC (ICSP clock) |
| Pin 14 | RB7 — GPIO / PGD (ICSP data) |
| Pin 15 | RA2 — GPIO / analog input / CVref |
| Pin 16 | RA3 — GPIO / analog input / Vref+ |
| Pin 17 | RA4 — GPIO / analog input |
| Pin 18 | AVDD — Analog supply (tie to VDD) |
| Pin 19 | AVSS — Analog ground (tie to VSS) |
| Pin 20 | VDD — Positive supply (2.0 V to 5.5 V) |
Typical Applications
PIC24FV16KA301-I/P is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Wearable Health Monitors, Capacitive-Touch User Interfaces, Remote Controls and Wireless Endpoints, Industrial 24V Sensor Transmitters, Energy Harvesting Endpoints.
Battery-Powered IoT Sensor Nodes
The PIC24FV16KA301-I/P is well suited for battery-powered IoT sensor endpoints because of its eXtreme Low Power (XLP) peripherals: Deep Sleep mode with RTCC retention, DSBOR (Deep Sleep Brown-Out Reset), and DSWDT (Deep Sleep Watchdog Timer). In a typical coin-cell sensor node, the MCU wakes every 60 s to read a sensor via the 12-bit ADC, transmits over a low-power radio, then returns to Deep Sleep at sub-µA current. The 16 MIPS throughput at 32 MHz keeps active time short, while 5V-tolerant I/O simplifies interface to 5V sensors or downstream regulators. Compared with 8-bit PIC16 alternatives, the 16-bit PIC24F core offers better math precision for calibration routines and richer firmware libraries such as mTouch and LoRaWAN MAC, enabling 10+ year battery life on a single CR2032.
Recommended
Wearable Health Monitors
For wearable health monitors, the PIC24FV16KA301-I/P combines the 12-bit ADC with the CTMU (Charge Time Measurement Unit) for both physiological-signal acquisition and capacitive-touch user interface on the same die. Heart-rate, SpO2, or temperature sensors connect to ADC channels, while CTMU-driven touch pads replace mechanical buttons, reducing BOM and improving waterproofing. The industrial -40 to +85 °C temperature grade handles body-heat and outdoor exercise conditions. Compared with discrete touch-IC plus 8-bit MCU designs, this single-chip approach lowers quiescent current, simplifies PCB layout, and leaves 16 KB of Flash for activity-classification algorithms. The 5V-tolerant I/O also supports driving LED indicator arrays at 3.3V without level shifters.
Recommended
Capacitive-Touch User Interfaces
The PIC24FV16KA301-I/P is a strong fit for capacitive-touch keypads, sliders, and proximity sensors because it pairs a 12-bit ADC with an on-chip CTMU, eliminating the need for a dedicated touch controller. The CTMU sources a constant current and the ADC measures the resulting voltage on the sense pad, providing sub-pF resolution and supporting both self- and mutual-capacitance topologies. Microchip's mTouch library provides ready-to-use source code for sliders, buttons, and proximity wake-up. Compared with stand-alone touch ICs, integrating the function into the MCU reduces BOM cost, PCB area, and software complexity, while 16 MIPS at 32 MHz ensures rapid scanning of multi-element touch surfaces.
Recommended
Remote Controls and Wireless Endpoints
For RF remote controls and simple wireless endpoints, the PIC24FV16KA301-I/P provides enough MIPS to drive a sub-GHz or 2.4 GHz transceiver via SPI while keeping average current low thanks to XLP Deep Sleep. A typical design runs the CPU at 32 MHz to send 64-byte packets, then enters Deep Sleep with RTCC wake-up, drawing under 1 µA between transmissions. The 5V-tolerant I/O allows direct connection to a 5V regulator when the design uses a 9V battery. Compared with 8-bit PIC16 alternatives, the 16-bit core simplifies AES-style encryption routines and supports larger protocol libraries like IEEE 802.15.4 MACs with extra code space to spare.
Recommended
Industrial 24V Sensor Transmitters
In industrial 24V-bus sensor transmitters, the PIC24FV16KA301-I/P serves as the 5V-tolerant MCU on the regulated 5V rail, interfacing to 4-20 mA loops, RS-485 transceivers, or HART modems. The 5V-tolerant I/O handles legacy 5V peripherals without level shifters, and the industrial -40 to +85 °C temperature grade suits factory-floor environments. The 16 MIPS throughput executes HART or Modbus RTU stacks with margin, while XLP Deep Sleep supports loop-powered designs where standby current must stay below 4 mA. Compared with higher-end Cortex-M0+ parts, the PIC24FV16KA301 offers comparable performance at lower BOM cost and benefits from Microchip's mature MPLAB X toolchain.
Recommended
Energy Harvesting Endpoints
The PIC24FV16KA301-I/P suits energy-harvesting endpoints (solar, thermal, vibration) because of its wide 2.0 V to 5.5 V operating range and sub-µA Deep Sleep current with RTCC retention. A typical solar-powered wireless node boots the MCU only when the harvest buffer reaches usable voltage, runs the application firmware for tens of milliseconds, transmits, and returns to Deep Sleep. The 5V-tolerant I/O allows connection to a wide-output-range harvest regulator, while the on-chip FRC oscillator eliminates the external crystal that would otherwise increase standby draw. Compared with discrete MCU plus ultra-low-power timer designs, the integrated RTCC and DSBOR simplify the BOM and improve reliability on weak harvest sources.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FV16KA301-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FV16KA301-E/P | PIC24F16KA301-I/P | PIC24FV32KA301-I/P | PIC24FV08KM101-I/P |
|---|---|---|---|---|---|
| Package | 20-pin PDIP (0.300 in) | 20-pin PDIP (0.300 in) - same | 20-pin PDIP (0.300 in) - same | 20-pin PDIP (0.300 in) - same | 20-pin PDIP (0.300 in) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 16 KB | 16 KB | 16 KB | 32 KB (+100%) | 8 KB (-50%) |
| Data RAM | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB (-50%) |
| Operating Voltage | 2.0 V to 5.5 V (5V tol.) | 2.0 V to 5.5 V (5V tol.) | 1.8 V to 3.6 V (non-V variant) | 2.0 V to 5.5 V (5V tol.) | 2.0 V to 5.5 V (5V tol.) |
| Operating Temperature | -40 to +85 °C (industrial) | -40 to +125 °C (extended) | -40 to +85 °C (industrial) | -40 to +85 °C (industrial) | -40 to +85 °C (industrial) |
| CPU Speed | 16 MIPS / 32 MHz | 16 MIPS / 32 MHz | 16 MIPS / 32 MHz | 16 MIPS / 32 MHz | 16 MIPS / 32 MHz |
| CTMU (Cap Touch) | Yes | Yes | Yes | Yes | No |
Key Differentiators
- 5V-tolerant wide-voltage (FV) variant (vs PIC24F16KA301-I/P)
- Doubled Flash (32 KB) drop-in upgrade path (vs PIC24FV32KA301-I/P)
- Extended-temperature (-40 to +125 °C) drop-in variant (vs PIC24FV16KA301-E/P)
Design Notes
To achieve sub-1 µA standby on the PIC24FV16KA301-I/P, configure all unused peripherals via DISI/PMD registers and select Deep Sleep mode with RTCC as the only wake-up source. Estimated: enabling RTCC at 1 Hz, disabling ADC, comparators, and unused timers typically yields ~330 nA Deep Sleep current per Microchip XLP benchmarks. Place a 100 nF decoupling capacitor within 5 mm of VDD/AVSS, plus a 10 µF bulk cap to handle radio or sensor inrush on wake. Avoid leaving floating analog inputs; tie to VSS via GND.
Route ICSP pins (PGD on RB7, PGC on RB6) with stub lengths under 25 mm and keep them away from switching rails. The MCLR pin requires a 10 kΩ pull-up to VDD; do not add capacitance above 100 pF on MCLR or programming may fail. For CTMU touch pads, use a guard trace connected to a quiet digital ground, and keep the touch sensor traces short and surrounded by ground pour to reduce stray capacitance. The exposed pads of the PDIP package do not require thermal relief; standard through-hole design rules apply.
Do not exceed 5.5 V on any I/O pin, even though the FV part is 5V tolerant — the input clamp current rating is limited. The FV variant's 2.0 V minimum is only valid when the internal voltage regulator is in Low-Voltage mode; at VDD below 2.0 V the ADC and CTMU may misbehave. Configuration bits must be set correctly for the chosen oscillator (FRC vs. primary oscillator with PLL) to avoid silent CPU lock-ups at power-up. Forgetting to clear the JTAGEN bit disables RB6/RB7 as standard GPIO. Lastly, the AVDD/AVSS pins must be powered even if the ADC is unused; failure to do so causes increased current draw.
Compliance Information
RoHS and lead-free compliant per Microchip product page. PDIP tube packaging, MSL 1. AEC-Q100 not applicable (industrial-grade MCU). Conflict-minerals declaration on file with Microchip.
