PIC24FV16KA301-E/SO - 16KB Flash 16-bit MCU, 32MHz XLP | Microchip
MPN: PIC24FV16KA301-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.8 | $3.80 |
| 10 | $3.42 | $34.20 |
| 100 | $3.05 | $305.00 |
| 500 | $2.74 | $1,370.00 |
| 1,000 | $2.43 | $2,430.00 |
PIC24FV16KA301-E/SO Overview
A 16-bit microcontroller is an embedded processor that uses a 16-bit data path and instruction word to balance code density, deterministic interrupt latency, and computational throughput for control-oriented tasks. PIC24F parts sit in Microchip's mid-range 16-bit portfolio above the 8-bit PIC16/PIC18 lines and below the dsPIC33/dsPIC35 DSP-capable parts. PIC24F is purpose-tuned for low-power and mixed-signal applications rather than DSP math, and the XLP sub-family adds nanoWatt technology with sub-uA deep-sleep current to compete with MSP430 and STM32L0 in battery-powered end equipment.
Key features of the PIC24FV16KA301-E/SO include a 12-bit ADC, CTMU (Charge Time Measurement Unit) for capacitive touch and mTouch sensing, 16 MIPS performance at 32MHz, deep-sleep-aware peripherals such as DSBOR (Deep-Sleep Brown-Out Reset), DSWDT (Deep-Sleep Watchdog Timer), and RTCC (Real-Time Clock Calendar), plus a Peripheral Pin Select (PPS) subsystem for flexible pin mapping. The device integrates a 16-bit timer, 3-wire SPI, I2C, UART, and a 5-channel hardware comparator, enabling direct connection of analog and digital sensors without external glue logic.
Architecturally, the PIC24FV16KA301 uses Microchip's modified Harvard RISC core with a 16-bit instruction word and 24-bit instruction address space, allowing linear code memory up to 16M instructions and supporting C-compiled firmware with the MPLAB XC16 toolchain. Hardware-level support is provided for low-power modes including Sleep, Deep Sleep, and Retention modes, with wake sources from RTCC, external interrupts, and DSWDT. PPS and the unified analog front-end mean the same silicon can be reused across product variants simply by changing firmware, which simplifies inventory for OEMs.
Typical applications include battery-powered IoT sensor nodes, e-metering and utility metering, capacitive touch user interfaces, medical handheld devices, low-power industrial sensors, and consumer appliances. The wide 1.8V to 5.5V VDD range lets the same part run from a single Li-ion cell, two AAs, or a regulated 3.3V rail, eliminating the need for separate hardware variants for different power domains.
When designing with this device, prioritize CTMU calibration on first power-up and size the decoupling network to at least 100nF + 10uF bulk per VDD/AVDD pair. A 32.768kHz crystal is recommended for RTCC accuracy; without it, deep-sleep RTC drift can exceed 5% and break long-interval timer applications.
This page consolidates distributor pricing, drop-in alternatives, and engineering design notes that supplement the manufacturer datasheet, supporting faster sourcing and design decisions for engineers evaluating PIC24F XLP devices.
Drop-in alternatives for PIC24FV16KA301-E/SO — 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-E/SO (same form factor and footprint) — differing in Operating Temperature, Package, Program Memory (Flash), Maximum CPU Speed, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FV16KA301-E/P
✅ Drop-In✓ In Stock
$2.5 / Unit
View Datasheet →PIC24FV16KA301-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FV32KA301-I/SO
✅ Drop-In✓ In Stock
$2.16 / Unit
View Datasheet →PIC24FV08KM101-I/SO
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC24FJ16MC101-I/SO
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC24FV16KA301-E/SO Maximum Ratings & Electrical Characteristics
| Core | PIC24F 16-bit RISC (modified Harvard) |
| Family | PIC24F XLP (eXtreme Low Power) - KA3xx sub-series |
| Program Memory (Flash) | 16 KB (5.5K x 24 instructions) |
| RAM Size | 2 KB (2K x 8) |
| EEPROM | 512 B |
| Maximum CPU Speed | 32 MHz / 16 MIPS |
| Supply Voltage (VDD) | 1.8 V to 5.5 V (FV variant; 5V operation) |
| Number of I/O Pins | 17 |
| ADC | 12-bit, 1 (or 2 in 20/28 pin variants) |
| Package / Case | 20-SOIC (0.300 in / 7.62 mm wide body, SO) |
| Operating Temperature | -40 C to +125 C (E grade = Extended) |
| Mounting Type | Surface Mount |
| Packaging | Tube |
| Oscillator Type | Internal with PLL; supports external crystal / clock |
| RoHS Status | Compliant |
PIC24FV16KA301-E/SO Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, internal pull-up |
| Pin 2 | RA0 — Port A bit 0 / analog input / PPS I/O |
| Pin 3 | RA1 — Port A bit 1 / analog input / PPS I/O |
| Pin 4 | RB0 — Port B bit 0 / analog input / PPS I/O (PGED1) |
| Pin 5 | RB1 — Port B bit 1 / analog input / PPS I/O (PGEC1) |
| Pin 6 | RB2 — Port B bit 2 / analog input / PPS I/O |
| Pin 7 | RB3 — Port B bit 3 / analog input / PPS I/O |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — Crystal oscillator input / external clock |
| Pin 10 | OSC2 — Crystal oscillator output |
| Pin 11 | RB4 — Port B bit 4 / PPS I/O |
| Pin 12 | RB5 — Port B bit 5 / PPS I/O |
| Pin 13 | RB6 — Port B bit 6 / PPS I/O |
| Pin 14 | RB7 — Port B bit 7 / PPS I/O |
| Pin 15 | AVSS — Analog ground reference |
| Pin 16 | AVDD — Analog positive supply |
| Pin 17 | RA2 — Port A bit 2 / analog input / PPS I/O |
| Pin 18 | RA3 — Port A bit 3 / analog input / VREF+ reference |
| Pin 19 | RA4 — Port A bit 4 / analog input / PPS I/O |
| Pin 20 | VDD — Digital positive supply |
Typical Applications
PIC24FV16KA301-E/SO is suitable for 6 applications: Battery-Powered IoT Sensor Node, Capacitive Touch User Interface, Industrial Sensor Transmitter, Smart Energy Meter / Utility Metering, Medical Handheld Device, Consumer Appliance Control.
Battery-Powered IoT Sensor Node
The PIC24FV16KA301-E/SO fits battery-powered IoT sensor nodes because its XLP technology delivers sub-uA deep-sleep current while still running the RTCC, DSWDT, and DSBOR peripherals autonomously. With 16 MIPS at 32MHz from a wide 1.8V-5.5V rail, the part can wake periodically, sample a sensor via its 12-bit ADC, transmit over UART, and return to deep-sleep. The CTMU also enables capacitive soil moisture or liquid-level sensing directly on-chip without external touch ICs, and the 2KB RAM is sufficient for sensor-fusion filters and short MQTT payloads in this scenario.
Recommended
Capacitive Touch User Interface
The PIC24FV16KA301-E/SO is purpose-built for capacitive touch interfaces thanks to its integrated CTMU (Charge Time Measurement Unit), 12-bit ADC, and mTouch firmware library. Each CTMU channel sources a precise constant current into a touch pad, and discharge time is measured by the ADC to detect finger capacitance changes of a few picofarads. With 16 MIPS, the firmware can scan 12-16 buttons plus a slider in under 5ms, while deep-sleep modes keep idle touch standby current below 1uA for battery-powered remote controls and white goods.
Recommended
Industrial Sensor Transmitter
The PIC24FV16KA301-E/SO is well-suited to industrial 4-20mA or wireless sensor transmitters that operate across -40 C to +125 C in factory environments. Its 12-bit ADC with internal voltage reference can directly digitize bridge sensors, RTDs, or 0-10V process signals. The wide 1.8V-5.5V VDD supports loop-powered designs running from a 24V loop with low-drop regulation, and the UART plus SPI peripherals allow easy integration of wireless modules such as Sub-GHz radios or BLE SoCs for Industry 4.0 sensor nodes.
Recommended
Smart Energy Meter / Utility Metering
The PIC24FV16KA301-E/SO is an excellent choice for residential and commercial utility meters, where its CTMU enables capacitive tamper detection and its 12-bit ADC can sample current shunts or CTs for energy calculation. The RTCC with external 32.768kHz crystal provides time-of-use tariff switching, and the EEPROM allows non-volatile storage of calibration and consumption logs without external NVRAM. The -E extended temperature range supports outdoor meter installations, while deep-sleep operation between measurement intervals keeps total system current under 30uA.
Recommended
Medical Handheld Device
The PIC24FV16KA301-E/SO fits portable medical handhelds such as glucose meters, pulse oximeters, and single-parameter patient monitors where low-power, deterministic operation, and reliable firmware updates are essential. The CTMU enables low-cost touch button user interfaces, the 12-bit ADC is adequate for optical photodiode readouts (paired with an analog front-end IC), and the wide 1.8V-5.5V VDD lets the same board run from a single CR2032 cell or a rechargeable Li-ion. The 16KB Flash accommodates BLE pairing stacks and FDA-traceable firmware signatures.
Recommended
Consumer Appliance Control
The PIC24FV16KA301-E/SO is well-matched to consumer appliances such as coffee machines, air purifiers, robotic vacuums, and small kitchen equipment. Its 12-bit ADC drives temperature and humidity feedback loops, the PWM + timer peripherals drive brushless DC fans and pumps, and the CTMU handles glass-surface capacitive touch keypads. The wide VDD range simplifies universal-input AC/DC designs with single-rail regulation. Deep-sleep modes drop standby power below 100uA for modern energy-star standby budgets, helping products pass IEC 62301 and EU EcoDesign requirements.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FV16KA301-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FV16KA301-E/P | PIC24FV16KA301-I/SO | PIC24FV32KA301-I/SO | PIC24FV08KM101-I/SO | PIC24FJ16MC101-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SOIC (0.300 in) | 20-PDIP (0.300 in) - different package | 20-SOIC (0.300 in) - same | 20-SOIC (0.300 in) - same | 20-SOIC (0.300 in) - same | 20-SOIC (0.300 in) - same |
| Program Memory (Flash) | 16 KB | 16 KB | 16 KB | 32 KB | 8 KB | 16 KB |
| RAM Size | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB | 2 KB |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 3.0 V to 3.6 V |
| Operating Temperature | -40 C to +125 C (E grade) | -40 C to +125 C | -40 C to +85 C (I grade) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Key Differentiators
- Wide 1.8V to 5.5V VDD with extended -40 to +125 C temperature range (vs PIC24F16KA301-I/SO (F variant, 3.0V-3.6V only, -40 to +85 C))
- Integrated CTMU for capacitive touch with 12-bit ADC measurement (vs PIC24FJ16MC101-I/SO (MC variant optimized for motor control, no CTMU))
- XLP nanoWatt deep-sleep current under 1uA with RTCC and DSWDT active (vs PIC24FV08KM101-I/SO (8KB Flash variant, similar XLP family))
Design Notes
Decouple VDD with a 100nF ceramic capacitor placed within 5mm of the VDD pin, and add a 10uF bulk capacitor on AVDD to support ADC reference stability. For battery applications, the PIC24FV16KA301-E/SO can drop to sub-uA deep-sleep current, but only if all unused I/Os are configured as outputs driving low or inputs with internal pull-ups disabled. Estimated: idle board current with MCU in deep-sleep at 3.3V is approximately 20-30uA including LDO quiescent.
At 32 MHz / 16 MIPS active, the PIC24FV16KA301-E/SO consumes approximately 15 mA from VDD in active mode, well within the SOIC-20 package's 1W thermal dissipation envelope (estimated: 25 C/W junction-to-ambient on a 1oz copper JEDEC test board). The wide -40 to +125 C operating range means no thermal shutdown is required for typical embedded applications. Place the device away from high-current traces to avoid local PCB heating.
Route the MCLR pin with a 10k pull-up to VDD and a 100nF cap to ground for clean reset; do not leave MCLR floating. Keep analog traces (sensor inputs to ADC) short and guarded by a ground pour to minimize digital crosstalk. Place the 32.768kHz RTCC crystal within 5mm of OSC1/OSC2 with short, symmetric traces and a ground guard ring; this layout is critical for <50ppm RTC accuracy.
Do not confuse the FV (wide-voltage 1.8V-5.5V) variant with the F (3.0V-3.6V only) variant when sourcing; operation below 3.0V on the F part is undefined. The CTMU requires firmware calibration against a known reference capacitor on first power-up - skipped calibration can cause touch thresholds to drift by up to 30%. PPS pin assignments must be unlocked by writing the IOLOCK sequence before alternate peripheral functions become active.
Compliance Information
RoHS and lead-free per Microchip product page. The PIC24F KA3xx family is widely used in non-safety automotive subsystems but does not carry individual AEC-Q100 part-level certification evidence on the standard -E (Extended) grade; consult Microchip automotive listings for AEC-Q100 qualified alternatives.
