PIC24FJ48GA002-I/SP - 16-Bit 32MHz MCU 48KB Flash 28-SPDIP
MPN: PIC24FJ48GA002-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.92 | $4.92 |
| 10 | $4.38 | $43.80 |
| 100 | $3.66 | $366.00 |
| 500 | $3.12 | $1,560.00 |
| 1,000 | $2.78 | $2,780.00 |
PIC24FJ48GA002-I/SP Overview
A PIC24F microcontroller is a 16-bit reduced instruction set computing (RISC) device in the broader category of microcontrollers, which themselves fall under the hierarchy of embedded processors, microcomputer ICs, and semiconductors. The PIC24F series is engineered specifically for low-power, cost-sensitive applications requiring more computational horsepower than 8-bit PIC MCUs while remaining easier to learn than 32-bit ARM Cortex devices. It bridges the gap between PIC16/PIC18 and PIC32 families in Microchip's product line.
Key features of the PIC24FJ48GA002 include 21 digital I/O pins, up to 16 MIPS performance at 32 MHz, 17x17 hardware multiply, single-cycle execution, 32-bit x 16-bit hardware divider, and a C compiler optimized instruction set. The device also provides an internal oscillator, real-time clock calendar (RTCC), 5 16-bit timers, 2 UART modules, 2 SPI modules, and 2 I2C modules. A 16-channel 10-bit ADC and 2 analog comparators support mixed-signal designs.
Architecturally, the PIC24FJ48GA002 uses a modified Harvard architecture with separate program and data buses, 24-bit instruction words, and 16-bit data paths. The device operates from 2.0V to 3.6V with nanoWatt deep-sleep current consumption, making it suitable for battery-powered designs. On-chip peripherals are mapped into a data-memory-mapped register architecture accessible from C.
Typical applications include consumer electronics, industrial control, USB device connectivity (with external transceiver), sensor interfacing, microcontrollers, home automation, and handheld instruments. The wide peripheral mix and generous Flash/RAM support both standalone and connected product designs.
When designing with this part, ensure the 28-SPDIP footprint is appropriate for the production assembly process. For surface-mount designs, the same silicon die is offered as PIC24FJ48GA002-I/SO (SOIC-28) and PIC24FJ48GA002-I/ML (QFN-28) variants.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the manufacturer datasheet without simply repeating its content.
Drop-in alternatives for PIC24FJ48GA002-I/SP — 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 PIC24FJ48GA002-I/SP (same form factor and footprint) — differing in Package, ADC, Core Architecture, Timers, Internal Oscillator.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ48GA002-I/SO
✅ Drop-In✓ In Stock
$0.83 / Unit
View Datasheet →PIC24FJ64GA002-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ32GA002-I/SP
✅ Drop-In✓ In Stock
$2.31 / Unit
View Datasheet →PIC24FJ48GA002-I/ML
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC24FJ64GA004-I/PT
✅ Drop-In✓ In Stock
$3.3 / Unit
View Datasheet →PIC24FJ48GA002-I/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F (16-bit modified Harvard) |
| Maximum CPU Speed | 16 MIPS |
| Maximum Device Clock | 32 MHz |
| Program Memory (Flash) | 48 KB (16K x 24) |
| Data Memory (RAM) | 8 KB (8192 bytes) |
| Operating Voltage Range | 2.0 V to 3.6 V |
| Digital I/O Pins | 21 |
| ADC | 10-bit, 16 channels |
| Analog Comparators | 2 |
| Hardware Multiply | 17 x 17, single-cycle |
| Hardware Divider | 32-bit / 16-bit |
| Timers | 5 x 16-bit |
| UART Modules | 2 |
| SPI Modules | 2 |
| I2C Modules | 2 |
| RTCC | Yes (Real-Time Clock Calendar) |
| Internal Oscillator | Yes |
| Package | 28-pin SPDIP (Skinny Plastic DIP) |
| Operating Temperature Range | -40 C to +85 C (Industrial, -I) |
| Mounting Type | Through-Hole |
PIC24FJ48GA002-I/SP Pin Configuration
| Pin 1 | MCLR — Master Clear (Reset) input, active low |
| Pin 2 | RA0/AN0 — Digital I/O / Analog input 0 / VREF+ |
| Pin 3 | RA1/AN1 — Digital I/O / Analog input 1 / VREF- |
| Pin 4 | RA2/AN2 — Digital I/O / Analog input 2 |
| Pin 5 | RA3/AN3 — Digital I/O / Analog input 3 |
| Pin 6 | RA4/AN4 — Digital I/O / Analog input 4 |
| Pin 7 | AVDD — Analog supply voltage |
| Pin 8 | AVSS — Analog ground |
| Pin 9 | OSC1/RA5 — Crystal oscillator input / Digital I/O |
| Pin 10 | OSC2/RA6 — Crystal oscillator output / Digital I/O |
| Pin 11 | RC0 — Digital I/O / SDA1 |
| Pin 12 | RC1 — Digital I/O / SCL1 |
| Pin 13 | RC2 — Digital I/O |
| Pin 14 | RB0/AN5 — Digital I/O / Analog input 5 / PGED1 |
| Pin 15 | RB1/AN6 — Digital I/O / Analog input 6 / PGEC1 |
| Pin 16 | RB2/AN7 — Digital I/O / Analog input 7 |
| Pin 17 | RB3/AN8 — Digital I/O / Analog input 8 |
| Pin 18 | RB4/AN9 — Digital I/O / Analog input 9 |
| Pin 19 | RB5/AN10 — Digital I/O / Analog input 10 |
| Pin 20 | RB6/AN11 — Digital I/O / Analog input 11 / ICDPGEC2 |
| Pin 21 | RB7/AN12 — Digital I/O / Analog input 12 / ICDPGED2 |
| Pin 22 | VDD — Digital supply voltage |
| Pin 23 | VSS — Digital ground |
| Pin 24 | RC3 — Digital I/O |
| Pin 25 | RC4 — Digital I/O |
| Pin 26 | RC5 — Digital I/O |
| Pin 27 | RC6 — Digital I/O |
| Pin 28 | RC7 — Digital I/O |
Typical Applications
PIC24FJ48GA002-I/SP is suitable for 7 applications: USB Device Peripherals, Industrial Sensor Interface, Consumer Appliance Control, Battery-Powered IoT Edge Nodes, Educational and Development Platforms, Handheld Test and Measurement, Home Automation Controllers.
USB Device Peripherals
The PIC24FJ48GA002-I/SP fits USB device peripheral applications because its 16 MIPS CPU easily handles USB 2.0 low-speed firmware stacks, 48 KB Flash accommodates USB HID/CDC/MSD class drivers plus application logic, and 8 KB RAM buffers USB endpoint transactions efficiently. The device integrates two UART, two SPI, and two I2C peripherals, all useful for bridging USB to legacy industrial buses. The 32-pin variant of the family even adds a full-speed USB 2.0 SIE on-chip; the 28-pin variant connects to an external USB transceiver via UART or SPI bridging. Power consumption of approximately 8 mA active at 32 MHz and sub-microamp sleep current make it suitable for USB-powered or bus-powered designs.
Recommended
Industrial Sensor Interface
The PIC24FJ48GA002-I/SP serves industrial sensor-interface designs through its 16-channel 10-bit ADC and two analog comparators that handle thermocouple, RTD, 4-20 mA loop, and bridge sensor signal chains. The 16 MIPS throughput runs linearization and PID control loops in real time, while 8 KB RAM supports moving-average filters and lookup tables for sensor calibration. Two UART modules talk to RS-232/RS-485 transceivers, and the two I2C peripherals interface digital temperature, pressure, and humidity sensors. The industrial -40 to +85 C operating range suits factory-floor deployment, and 2.0V-3.6V operation tolerates noisy supply rails common in motor control cabinets.
Recommended
Consumer Appliance Control
The PIC24FJ48GA002-I/SP targets consumer appliance control boards through its 21 digital I/O pins that drive relays, triacs, LEDs, and seven-segment displays while reading keypad switches and mode selectors. Its 5 16-bit timers generate PWM for motor speed control, dimming, and buzzer tones without CPU overhead. The 48 KB Flash stores lookup tables for wash programs, cooking profiles, or HVAC scheduling, while 8 KB RAM supports user interface state machines and EEPROM emulation. The 28-SPDIP through-hole package simplifies hand-soldering and rework in low-volume appliance SKUs, and the nanoWatt idle modes meet ENERGY STAR standby requirements.
Recommended
Battery-Powered IoT Edge Nodes
The PIC24FJ48GA002-I/SP supports battery-powered IoT edge node designs because its nanoWatt technology reduces deep-sleep current to sub-microamp levels, extending coin-cell or 2xAA battery life to multiple years. The internal oscillator eliminates external crystal cost and current draw, and the 16 MIPS active performance lets the device wake, sample sensors, process data, transmit via UART/SPI, and return to sleep quickly to minimize active energy budget. The 2.0V-3.6V supply range operates directly from lithium or alkaline chemistries, and 16 ADC channels interface temperature, light, motion, and gas sensors commonly used in wireless sensor nodes.
Recommended
Educational and Development Platforms
The PIC24FJ48GA002-I/SP fits educational and development platforms because the 28-SPDIP through-hole package is breadboard-friendly, allowing students and hobbyists to prototype without soldering. The PIC24F family shares instruction-set compatibility with PIC24 and dsPIC33 families, providing a migration path from introductory 8-bit PIC16/PIC18 MCUs to advanced 16-bit and DSP-capable devices. The 48 KB Flash and 8 KB RAM support the MPLAB X IDE, XC16 compiler, and Microchip's code configurator (MCC) toolchain for free academic use. Explorer 16/32 development boards use this family, and the peripheral mix gives learners exposure to ADC, timers, UART, SPI, and I2C subsystems in one part.
Recommended
Handheld Test and Measurement
The PIC24FJ48GA002-I/SP enables handheld test and measurement instruments because its 32 MHz / 16 MIPS CPU runs DSP routines for RMS calculation, FFT analysis, and statistical filtering on digitized signals, while 8 KB RAM stores sample buffers for 1-2 kHz oscilloscope-style acquisitions. The 10-bit ADC at 500 ksps digitizes voltage and current inputs, and the two analog comparators support threshold detection and zero-crossing events. Two UART ports connect to Bluetooth modules for wireless data logging, and the nanoWatt sleep modes extend battery life between charges. The 28-SPDIP package suits small-batch production runs of dedicated T&M tools.
Recommended
Home Automation Controllers
The PIC24FJ48GA002-I/SP powers home automation controllers including smart thermostats, lighting controllers, and HVAC zone managers because its 16 MIPS CPU handles user-interface state, scheduling logic, and communication stacks simultaneously. The 16-channel ADC monitors temperature sensors, occupancy detectors, and potentiometer setpoints; two I2C buses connect to LCD displays and digital sensors; two UARTs link to Wi-Fi or Zigbee modules. The 48 KB Flash stores Z-Wave, Zigbee, or proprietary protocol firmware plus application logic, and 8 KB RAM supports packet buffers. The 28-SPDIP package eases service and repair in installed wall controllers.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ48GA002-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ48GA002-I/SO | PIC24FJ64GA002-I/SP | PIC24FJ32GA002-I/SP | PIC24FJ48GA002-I/ML | PIC24FJ64GA004-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP | 28-SOIC | 28-SPDIP - same | 28-SPDIP - same | 28-QFN | 44-TQFP |
| Flash Memory | 48 KB | 48 KB - same | 64 KB (+33%) | 32 KB (-33%) | 48 KB - same | 64 KB (+33%) |
| RAM | 8 KB | 8 KB - same | 8 KB - same | 8 KB - same | 8 KB - same | 8 KB - same |
| Maximum CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS - same | 32 MHz / 16 MIPS - same | 32 MHz / 16 MIPS - same | 32 MHz / 16 MIPS - same | 32 MHz / 16 MIPS - same |
| Operating Voltage | 2.0V to 3.6V | 2.0V to 3.6V - same | 2.0V to 3.6V - same | 2.0V to 3.6V - same | 2.0V to 3.6V - same | 2.0V to 3.6V - same |
| I/O Pins | 21 | 21 - same | 21 - same | 21 - same | 21 - same | 36 (+71%) |
| ADC Channels | 16 x 10-bit | 16 x 10-bit - same | 16 x 10-bit - same | 16 x 10-bit - same | 16 x 10-bit - same | 13 x 10-bit |
| Mounting Type | Through-Hole | Surface Mount | Through-Hole - same | Through-Hole - same | Surface Mount | Surface Mount |
Key Differentiators
- Through-hole 28-SPDIP package for breadboard and hand-solder prototyping (vs PIC24FJ48GA002-I/SO)
- 48 KB Flash upgrade path over 32 KB variant on identical pinout (vs PIC24FJ32GA002-I/SP)
- Single drop-in replacement for legacy PIC24FJ64GA004 designs (vs PIC24FJ64GA004-I/PT (44-TQFP))
Design Notes
Decouple VDD and AVDD with a 100 nF ceramic capacitor placed within 5 mm of each supply pin, plus a 10 uF bulk capacitor at the package. The PIC24FJ48GA002 is sensitive to analog supply noise; route AVSS directly to a low-impedance ground plane, not through a shared analog/digital ground trace. For nanoWatt sleep currents below 1 uA, ensure no floating analog inputs by configuring unused ADC channels as digital outputs driven low.
Do not skip the MCLR pull-up resistor: the MCLR pin defaults to active-low reset and requires a 10 kohm pull-up to VDD for normal operation. Programmer/debugger connections via PGED1/PGEC1 (RB0/RB1) must remain accessible - assign these to non-critical functions or route them to an ICSP header. For 3.3V-only operation, ensure no 5V signals are applied to any I/O pin; the device is NOT 5V tolerant.
Place the 28-SPDIP socket footprint so that the ICSP programming header can reach pins 1 (MCLR), 14 (PGED1/RB0), and 15 (PGEC1/RB1). For production programming via ICSP, expose all five programming signals (MCLR, VDD, VSS, PGED1, PGEC1) on a programming connector. Avoid routing high-frequency signals across the ICSP traces; ICD debugging requires clean signal integrity on PGED1/PGEC1 lines below 50 mm total length.
Route the 32 MHz crystal traces (OSC1/OSC2) symmetrically and keep them short, with a ground guard ring on both sides. If using the internal oscillator instead, OSC1/OSC2 pins (RA5/RA6) can be used as digital I/O - configure the OSCCON register before changing pin direction. Place the crystal and its load capacitors within 5 mm of pins 9 and 10 for stable oscillation.
Compliance Information
Compliance certifications not confirmed in the verified web data; consult Microchip product page for current RoHS/REACH declarations. AEC-Q100 not applicable - this part is industrial-grade (-40 to +85 C), not automotive-qualified.
