PIC24FJ16GA004-I/PT - 16-bit MCU, 16KB Flash, 44-TQFP | Microchip
MPN: PIC24FJ16GA004-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.28 | $3.28 |
| 10 | $2.95 | $29.50 |
| 100 | $2.61 | $261.00 |
| 500 | $2.34 | $1,170.00 |
| 1,000 | $2.1 | $2,100.00 |
PIC24FJ16GA004-I/PT Overview
A 16-bit microcontroller is a microprocessor core that operates on 16-bit data words and instruction paths, sitting hierarchically above 8-bit MCUs and below 32-bit ARM/DSP cores in the embedded controller taxonomy. The PIC24F sub-family adds low-power sleep modes, rich peripheral integration, and C-compiler-friendly instruction sets, placing it firmly in the power-management-conscious industrial / consumer / automotive-telematics tier.
Key features include 16 MIPS performance, 16KB (5.5K x 24 instruction words) self-programmable Flash, 4KB SRAM, 35 digital I/O pins, hardware 32x16 divider, multiple communication peripherals (UART, SPI, I2C), 10-bit ADC, RTCC, and 5V-tolerant I/O. nanoWatt XLP technology provides deep Sleep currents below 1 uA, enabling multi-year battery operation in energy-harvesting designs. AEC-Q100 qualification is available on special ordering codes for automotive designs.
Typical applications include industrial sensor interfaces, low-power handheld instrumentation, consumer appliances, USB/serial human-interface devices, and automotive body/telematics modules. The 44-pin TQFP exposes enough I/O for small graphical LCDs, matrix keypads, and multi-channel analog front-ends.
When designing, verify the 2.5V/3.3V core voltage tolerance, route decoupling caps close to VDD/VSS pairs, and use the device's built-in bootloader or ICSP for in-field firmware updates. The PIC24FJ16GA004 is pin-compatible with larger-memory siblings (PIC24FJ32GA004, PIC24FJ64GA004), enabling memory-scalable designs on a single PCB layout.
This page synthesizes distributor pricing, drop-in same-package alternatives, AEC-Q100 automotive ordering notes, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24FJ16GA004-I/PT — 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 PIC24FJ16GA004-I/PT (same form factor and footprint) — differing in Program Memory (Flash), Core Architecture, ADC, Internal Oscillator, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ32GA004-I/PT
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →PIC24FJ64GA004-I/PT
✅ Drop-In✓ In Stock
$3.3 / Unit
View Datasheet →PIC24FJ16GA004-E/PT
✅ Drop-In✓ In Stock
$2.95 / Unit
View Datasheet →PIC24FJ16GA004-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F 16-bit RISC (modified Harvard) |
| CPU Performance | 16 MIPS at 32 MHz |
| Program Memory (Flash) | 16 KB (5.5K x 24 instruction words) |
| Data Memory (SRAM) | 4 KB |
| I/O Pins | 35 |
| Supply Voltage | 2.5V / 3.3V (5V tolerant I/O) |
| Operating Temperature | -40C to +85C (Industrial) |
| ADC | 10-bit |
| Hardware Multiplier | 17 x 17 single-cycle |
| Hardware Divider | 32-bit / 16-bit |
| Low-Power Technology | nanoWatt XLP |
| Automotive Qualification | AEC-Q100 (special ordering code) |
| Package | 44-TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| RoHS Status | Compliant |
PIC24FJ16GA004-I/PT Pin Configuration
| Pin 1 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Pin 2 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Pin 3 | RA2/AN2/VREF- — PORTA bit 2 / Analog input 2 / ADC VREF- |
| Pin 4 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC VREF+ |
| Pin 5 | RA4 — PORTA bit 4 |
| Pin 6 | RA5 — PORTA bit 5 |
| Pin 7 | RA6 — PORTA bit 6 |
| Pin 8 | RA7 — PORTA bit 7 |
| Pin 9 | RB0 — PORTB bit 0 |
| Pin 10 | RB1 — PORTB bit 1 |
| Pin 11 | RB2 — PORTB bit 2 |
| Pin 12 | RB3 — PORTB bit 3 |
| Pin 13 | RB4 — PORTB bit 4 |
| Pin 14 | RB5 — PORTB bit 5 |
| Pin 15 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin 16 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pin 17 | RC0 — PORTC bit 0 |
| Pin 18 | RC1 — PORTC bit 1 |
| Pin 19 | RC2 — PORTC bit 2 |
| Pin 20 | RC3 — PORTC bit 3 |
| Pin 21 | RC4 — PORTC bit 4 |
| Pin 22 | RC5 — PORTC bit 5 |
| Pin 23 | RC6 — PORTC bit 6 |
| Pin 24 | RC7 — PORTC bit 7 |
| Pin 25 | RD0 — PORTD bit 0 |
| Pin 26 | RD1 — PORTD bit 1 |
| Pin 27 | RD2 — PORTD bit 2 |
| Pin 28 | RD3 — PORTD bit 3 |
| Pin 29 | RD4 — PORTD bit 4 |
| Pin 30 | RD5 — PORTD bit 5 |
| Pin 31 | RD6 — PORTD bit 6 |
| Pin 32 | RD7 — PORTD bit 7 |
| Pin 33 | RE0 — PORTE bit 0 |
| Pin 34 | RE1 — PORTE bit 1 |
| Pin 35 | RE2 — PORTE bit 2 |
| Pin 36 | RE3 — PORTE bit 3 |
| Pin 37 | RE4 — PORTE bit 4 |
| Pin 38 | RE5 — PORTE bit 5 |
| Pin 39 | RE6 — PORTE bit 6 |
| Pin 40 | RE7 — PORTE bit 7 |
| Pin 41 | VSS — Ground reference |
| Pin 42 | VDD — Positive supply voltage |
| Pin 43 | MCLR — Master clear reset (active low) |
| Pin 44 | OSC1/CLKIN — Crystal oscillator input / external clock input |
Typical Applications
PIC24FJ16GA004-I/PT is suitable for 6 applications: Industrial Sensor Interface Node, Low-Power Handheld Instrument, Consumer Appliance Control Board, Automotive Body / Telematics Module, USB / Serial Human-Interface Device, Energy-Harvesting Wireless Sensor.
Industrial Sensor Interface Node
The PIC24FJ16GA004-I/PT's 16 MIPS PIC24F core and 35 digital I/O pins make it ideal for industrial 4-20mA / 0-10V sensor interfaces and Modbus RTU edge nodes. Its 10-bit ADC and 16 KB Flash accommodate multiple calibration tables and linearization algorithms in C, while the 4 KB SRAM buffers incoming Modbus frames without DMA. Designed for the PIC24FJ64GA004 family with nanoWatt XLP, it runs from 2.5V/3.3V with industrial -40C to +85C tolerance, dropping below 1 uA in Sleep for battery-backed flow meters. Place 100 nF decoupling caps on each VDD/VSS pair.
Recommended
Low-Power Handheld Instrument
Handheld instruments benefit from the PIC24FJ16GA004-I/PT's nanoWatt XLP technology, which drops deep Sleep current below 1 uA while keeping the RTCC and brown-out reset alive. The 16-bit core runs 16 MIPS at 32 MHz, sufficient for menu-driven UI refresh on a small character LCD and live ADC filtering at 100 ksps. With 16 KB Flash and 4 KB SRAM, designers fit USB-CDC firmware stacks and complex button-debounce state machines without external memory, and the 44-TQFP exposes enough I/O for a 4x4 keypad and graphical LCD.
Recommended
Consumer Appliance Control Board
Consumer appliances such as coffee machines, washing machines, and microwave ovens rely on the PIC24FJ16GA004-I/PT for its combination of 16 MIPS throughput, 35 I/O lines, and industrial-grade reliability at low cost. The PIC24F architecture runs both brushed DC motor PWM and triac-fired heater control from the same MCU. With 16 KB Flash the device stores wash-cycle profiles and EEPROM-emulated user settings, while the 4 KB SRAM keeps transient buffer variables. AEC-Q100 special-ordering variants suit white-goods designs destined for vehicle-grade certification.
Recommended
Automotive Body / Telematics Module
Automotive body controllers, HVAC panels, and telematics units use the PIC24FJ16GA004-I/PT family with AEC-Q100 special ordering codes to meet OEM quality requirements. The 16 KB Flash stores CAN/LIN protocol stacks and diagnostic trouble codes (DTCs), while 35 I/O drive relay coils, LEDs, and analog sensors through the 10-bit ADC. The 16 MIPS performance handles LIN slave scheduling and UART debug ports simultaneously, and the 44-TQFP footprint is robust enough for the under-dash automotive environment when paired with conformal coating.
Recommended
USB / Serial Human-Interface Device
The PIC24FJ16GA004-I/PT family supports USB 2.0 full-speed device operation via an internal peripheral and the Microchip USB stack, enabling USB HID keyboards, mice, and custom HID devices in the 44-TQFP. The 16 MIPS CPU handles USB enumeration, HID report assembly, and LED/PWM-driven haptic feedback concurrently. With 16 KB Flash the device ships pre-loaded with the HID bootloader, leaving room for user firmware; 4 KB SRAM comfortably hosts USB endpoint buffers and HID report queues.
Recommended
Energy-Harvesting Wireless Sensor
Energy-harvesting wireless sensor nodes use the PIC24FJ16GA004-I/PT's nanoWatt XLP technology, deep Sleep current below 1 uA, and integrated RTCC to operate from tiny harvested sources like indoor photovoltaic cells or thermal gradients. The 16 MIPS PIC24F core wakes periodically to read sensors, transmit data over sub-GHz radio modules, and return to Sleep. 16 KB Flash fits LoRaWAN or Zigbee PRO stack profiles, while 4 KB SRAM holds protocol buffers and sensor samples. The 44-TQFP allows compact PCBAs alongside miniature radio modules.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ16GA004-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ32GA004-I/PT | PIC24FJ64GA004-I/PT | PIC24FJ16GA004-E/PT |
|---|---|---|---|---|
| Package | 44-TQFP (10x10) | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 32 KB | 64 KB | 16 KB |
| SRAM | 4 KB | 4 KB | 8 KB | 4 KB |
| CPU Speed | 16 MIPS / 32 MHz | 16 MIPS / 32 MHz | 16 MIPS / 32 MHz | 16 MIPS / 32 MHz |
| I/O Pins | 35 | 35 | 35 | 35 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (extended) |
| Automotive Grade | Industrial (AEC-Q100 special order) | Industrial (AEC-Q100 special order) | Industrial (AEC-Q100 special order) | Extended temperature |
| Low-Power Tech | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP |
Key Differentiators
- Pin-compatible memory scalability (vs PIC24FJ64GA004-I/PT)
- nanoWatt XLP eXtreme Low Power (vs PIC24FJ16GA004-I/ML)
- AEC-Q100 automotive-capable ordering (vs PIC24FJ16GA004-I/PT (industrial))
Design Notes
The PIC24FJ16GA004-I/PT operates from 2.0V to 3.6V VDD with 5V-tolerant I/O on most pins. Place one 100 nF decoupling capacitor within 5 mm of each VDD/VSS pair, plus a single 10 uF bulk capacitor near the IC. For battery-powered designs, leverage nanoWatt XLP Sleep modes (currents below 1 uA) and the on-chip RTCC running from a 32.768 kHz crystal. Avoid high-current loads on I/O lines to keep VDD ripple under 50 mV p-p during ADC sampling.
Route the ICSP signals PGC (RB6) and PGD (RB7) directly to a 6-pin header with series 4.7 kohm pull-ups to VDD so the device can be programmed in-circuit. Keep crystal traces short (under 10 mm) and shield them from switching traces. The 44-TQFP land pattern requires a 0.8 mm pitch with 0.5 mm wide pads; do not place vias under the thermal pad area. For ADC accuracy, route analog inputs (AN0-AN7) away from digital switching traces and use a separate analog ground island joined at the VSS pin.
Do not assume Flash endurance is unlimited; PIC24F specifies 1,000 erase/write cycles per row and 20-year data retention, so use EEPROM-emulation in Flash for frequently-changed parameters only when necessary. When migrating from PIC24FJ16GA004 to PIC24FJ32GA004 or PIC24FJ64GA004, verify the linker script reserves the correct Flash ranges and that interrupt vector tables start at 0x0000 with the higher offset. The internal FRC oscillator drifts up to 5% over temperature, so use a crystal or FRC+PLL when UART communication requires baud-rate accuracy.
The 44-TQFP package dissipates less than 200 mW in typical 16 MIPS operation, well within the package's thermal envelope. However, at industrial -40C to +85C ambient the silicon does not require additional heatsinking. For AEC-Q100 automotive builds (special ordering code), perform -40C to +125C thermal characterization per JEDEC JESD22-A104 to validate solder-joint reliability on the 0.8 mm pitch TQFP land pattern.
Compliance Information
RoHS compliant per Microchip product page. AEC-Q100 qualification available on special automotive ordering codes (VAO suffix) - the base MPN is industrial grade but shares identical silicon with AEC-Q100 variants.