PIC24FJ48GA004-I/PT - 16-bit 32MHz 48KB Flash MCU | Microchip
MPN: PIC24FJ48GA004-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.5 | $4.50 |
| 10 | $4.05 | $40.50 |
| 100 | $3.6 | $360.00 |
| 500 | $3.2 | $1,600.00 |
| 1,000 | $2.85 | $2,850.00 |
PIC24FJ48GA004-I/PT Overview
A 16-bit microcontroller (MCU) is a class of embedded processor that combines a wider data path, higher peripheral integration, and richer addressing modes than 8-bit parts while remaining simpler and lower-power than 32-bit MCUs. Within the broader taxonomy, the PIC24FJ48GA004-I/PT belongs to: microcontroller -> 16-bit MCU -> PIC24F family -> flash MCU -> general-purpose MCU. This positioning makes it a popular middle-ground choice for applications that need more performance than 8-bit PIC MCUs but do not require a full 32-bit core.
Key features include a 17-bit x 17-bit single-cycle hardware multiplier and a 32-bit / 16-bit hardware divider, a C-compiler-optimized instruction set, an 8 MHz internal oscillator with 4x PLL and multiple divide options, and advanced peripherals such as a 16-channel 10-bit ADC, multiple UART/SPI/I2C modules, and 5 16-bit timers. The -I temperature grade supports -40C to +85C industrial operation.
The PIC24FJ48GA004-I/PT uses a Modified Harvard architecture with separate program and data buses, enabling single-cycle instruction fetch with simultaneous data access. The wide 24-bit instruction word and 16-bit data path improve code density and arithmetic throughput relative to 8-bit cores, while nanoWatt power management provides multiple sleep and idle modes for battery-operated designs.
Typical applications include industrial automation and sensor nodes, low-cost consumer electronics, USB/HID peripherals, graphical LCD user interfaces, motor control complements, and portable data loggers. The 35 I/O count and 44-pin TQFP package make it well suited to mid-density designs that outgrow 8-bit MCUs but do not require a 32-bit core.
When designing with this device, ensure the DISVREG pin is correctly handled for regulator-on or regulator-off modes and that all VDD/VSS pins are bonded. Selecting the correct oscillator mode (internal vs. crystal) early in the design avoids timing-sensitive rework.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers shorten the bill-of-materials and validation cycle for PIC24FJ-based designs.
Drop-in alternatives for PIC24FJ48GA004-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 PIC24FJ48GA004-I/PT (same form factor and footprint) — differing in ADC, Core Architecture, Program Memory (Flash), Timers, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ48GA004-E/PT
✅ Drop-In✓ In Stock
$3.72 / Unit
View Datasheet →PIC24FJ64GA004-I/PT
✅ Drop-In✓ In Stock
$3.3 / Unit
View Datasheet →PIC24FJ32GA004-I/PT
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →PIC24FJ16GA004-I/PT
✅ Drop-In✓ In Stock
$2.1 / Unit
View Datasheet →PIC24FJ32GB004-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.72 / Unit
View Datasheet →PIC24FJ48GA004-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 16-bit Modified Harvard |
| CPU Core | PIC24F |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 48 KB (16K x 24) |
| RAM | 8 KB (8192 bytes) |
| General-Purpose I/O | 35 |
| Package | 44-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Temperature Grade | Industrial (-40C to +85C) |
| Hardware Multiplier | 17-bit x 17-bit single-cycle |
| Hardware Divider | 32-bit / 16-bit |
| Internal Oscillator | 8 MHz with 4x PLL option and multiple divide options |
| ADC | 16-channel 10-bit |
| Communication Peripherals | UART, SPI, I2C |
| Timers | 5 x 16-bit |
| Instruction Set | C-compiler optimized, 24-bit instruction word |
| RoHS Status | Compliant |
PIC24FJ48GA004-I/PT Pin Configuration
| Pin 1 | RP15/RX2/PMCS1/RF4 — Remappable peripheral / UART2 RX / PWM / GPIO RF4 |
| Pin 2 | RP14/TX2/PMD0/RF5 — Remappable peripheral / UART2 TX / PMP data / GPIO RF5 |
| Pin 3 | RP13/PMD1/RF6 — Remappable peripheral / PMP data / GPIO RF6 |
| Pin 4 | RP12/PMD2/RF7 — Remappable peripheral / PMP data / GPIO RF7 |
| Pin 5 | RP11/PMD3/RG0 — Remappable peripheral / PMP data / GPIO RG0 |
| Pin 6 | RP10/PMD4/RG1 — Remappable peripheral / PMP data / GPIO RG1 |
| Pin 7 | OSCI/CLKI/RC12 — Crystal oscillator input / external clock input / GPIO RC12 |
| Pin 8 | OSCO/CLKO/RC15 — Crystal oscillator output / clock output / GPIO RC15 |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply (2.0V-3.6V) |
| Pin 11 | RP17/RX1/RD0 — Remappable peripheral / UART1 RX / GPIO RD0 |
| Pin 12 | RP16/TX1/RC13 — Remappable peripheral / UART1 TX / GPIO RC13 |
| Pin 13 | RP9/SDA2/RC4 — Remappable peripheral / I2C2 SDA / GPIO RC4 |
| Pin 14 | RP8/SCL2/RC3 — Remappable peripheral / I2C2 SCL / GPIO RC3 |
| Pin 15 | RP7/INT0/RD1 — Remappable peripheral / external interrupt 0 / GPIO RD1 |
| Pin 16 | RP6/RD2 — Remappable peripheral / GPIO RD2 |
| Pin 17 | RP5/RD3 — Remappable peripheral / GPIO RD3 |
| Pin 18 | DISVREG — Voltage regulator disable (tie to VSS for normal operation) |
| Pin 19 | VCAP/VDDCORE — Core logic supply decoupling (connect 10uF + 0.1uF) |
| Pin 20 | RP4/RD4 — Remappable peripheral / GPIO RD4 |
| Pin 21 | RP3/RD5 — Remappable peripheral / GPIO RD5 |
| Pin 22 | RP2/PMBE/RD6 — Remappable peripheral / PMP byte enable / GPIO RD6 |
| Pin 23 | RP1/PMWR/RD7 — Remappable peripheral / PMP write strobe / GPIO RD7 |
| Pin 24 | RP0/PMRD/RE0 — Remappable peripheral / PMP read strobe / GPIO RE0 |
| Pin 25 | PMD5/RE1 — PMP data / GPIO RE1 |
| Pin 26 | PMD6/RE2 — PMP data / GPIO RE2 |
| Pin 27 | PMD7/RE3 — PMP data / GPIO RE3 |
| Pin 28 | VSS — Ground reference |
| Pin 29 | AN0/CVREF+/RA0 — Analog input 0 / CVREF positive / GPIO RA0 |
| Pin 30 | AN1/CVREF-/RA1 — Analog input 1 / CVREF negative / GPIO RA1 |
| Pin 31 | AN2/RA2 — Analog input 2 / GPIO RA2 |
| Pin 32 | AN3/RA3 — Analog input 3 / GPIO RA3 |
| Pin 33 | AN4/RA4 — Analog input 4 / GPIO RA4 |
| Pin 34 | AN5/RA5 — Analog input 5 / GPIO RA5 |
| Pin 35 | AVSS — Analog ground reference |
| Pin 36 | AVDD — Analog positive supply (2.0V-3.6V) |
| Pin 37 | AN6/RB0 — Analog input 6 / GPIO RB0 |
| Pin 38 | AN7/RB1 — Analog input 7 / GPIO RB1 |
| Pin 39 | AN8/RB2 — Analog input 8 / GPIO RB2 |
| Pin 40 | AN9/RB3 — Analog input 9 / GPIO RB3 |
| Pin 41 | AN10/C1INC/RB4 — Analog input 10 / comparator input / GPIO RB4 |
| Pin 42 | AN11/C1IND/RB5 — Analog input 11 / comparator input / GPIO RB5 |
| Pin 43 | AN12/C1INC/RB6 — Analog input 12 / comparator input / GPIO RB6 |
| Pin 44 | AN13/C1IND/RB7 — Analog input 13 / comparator input / GPIO RB7 |
Typical Applications
PIC24FJ48GA004-I/PT is suitable for 6 applications: Industrial Sensor Hub, Consumer Appliance Control Board, Portable Data Logger, HMI / Graphical LCD Front-End, USB HID Peripheral Companion, Low-Cost Educational / Maker Platform.
Industrial Sensor Hub
The PIC24FJ48GA004-I/PT fits industrial sensor hubs thanks to its 16-channel 10-bit ADC (sufficient for thermocouple, RTD, and 4-20 mA conditioning front-ends), 35 GPIOs for parallel sensor fan-in, and 32 MHz / 16 MIPS throughput that runs Modbus RTU or CAN-friendly firmware stacks without CPU strain. Its -40C to +85C industrial temperature rating aligns with IEC 60068-2-1/-2 shock and vibration profiles used in factory cabinets. The 48 KB Flash and 8 KB RAM hold the protocol stack plus custom calibration tables; nanoWatt sleep modes cut idle power to microamperes for battery-backed remote telemetry units. Place it between the sensor analog front-end and a digital isolator or RS-485 transceiver. Source: PIC24FJ64GA004 family datasheet, Microchip.
Recommended
Consumer Appliance Control Board
In washing machines, dishwashers, and small kitchen appliances the PIC24FJ48GA004-I/PT drives keypad/LED user interfaces, BLDC or universal motor PWM channels (via 5 x 16-bit timers), and triac-fired heater relays. The 35 GPIOs handle segment displays, cap-touch pads, and rotary encoder inputs without external I/O expanders. The 16 MIPS core processes sensor-fusion algorithms for load-balancing and adaptive control. Compared with 8-bit PIC MCUs, the 16-bit data path simplifies 32-bit math for energy metering, while nanoWatt sleep keeps standby power below 0.5 W for ENERGY STAR compliance. The 44-pin TQFP is easy to hand-prototype on the appliance PCB.
Recommended
Portable Data Logger
Battery-powered data loggers benefit from the PIC24FJ48GA004-I/PT's nanoWatt sleep modes (microampere idle), 48 KB Flash for buffering firmware, and 8 KB RAM for time-stamped sample buffers. The 16 MIPS core samples multiple ADC channels at >10 kHz aggregate rates while still servicing SD-card writes via SPI. The RTCC peripheral runs from an external 32.768 kHz crystal during sleep, allowing years of battery life on 2x AA cells for cold-chain or environmental monitoring. The -40C to +85C rating covers outdoor enclosures, and the 44-pin TQFP package leaves room for a coin-cell holder and microSD socket.
Recommended
HMI / Graphical LCD Front-End
The PIC24FJ48GA004-I/PT drives small graphical LCDs (up to ~128x64 pixels) via its SPI peripheral, freeing the parallel GPIOs for tactile buttons and rotary encoders. The 16 MIPS throughput runs menu firmware with anti-aliasing fonts in C without DMA bottlenecks. The 35 GPIOs support 5x5 key matrices plus backlight PWM, eliminating external I/O chips. Compared with 8-bit cores, the wider 16-bit data path reduces CPU overhead when rendering progressive UI elements, while 48 KB Flash stores bitmap libraries. The industrial -40C to +85C range suits outdoor kiosks and industrial HMIs.
Recommended
USB HID Peripheral Companion
Although the PIC24FJ48GA004-I/PT lacks native USB, it pairs naturally with an external USB-to-UART bridge such as the MCP2200 or MCP2221 to implement HID-class devices (keyboards, custom input controllers, programmable keypads). The 16 MIPS core handles HID report generation and debounce logic, while the bridge handles USB protocol and enumeration. The 48 KB Flash stores custom HID descriptors and macro libraries. The 35 GPIOs scan large key matrices, and the 8 KB RAM buffers HID reports before transmission. This two-chip pattern is widely used in low-cost programmable USB input devices.
Recommended
Low-Cost Educational / Maker Platform
The PIC24FJ48GA004-I/PT appears on Microchip's Explorer 16/32 development board and many third-party PIM (Plug-In Module) boards, making it a popular learning platform for 16-bit embedded design. The C-compiler-optimized PIC24 instruction set is approachable for engineers graduating from 8-bit PICs to higher-performance designs. The 44-pin TQFP is breadboard-friendly via carrier boards, and the active hobbyist community supplies example firmware for sensors, displays, and motor control. Compared with ARM Cortex-M0 parts, the PIC24F offers a lower-cost entry point with a generous peripheral set and established tool chain (MPLAB X IDE).
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ48GA004-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ48GA004-E/PT | PIC24FJ64GA004-I/PT | PIC24FJ32GA004-I/PT | PIC24FJ16GA004-I/PT | PIC24FJ32GB004-I/PT |
|---|---|---|---|---|---|---|
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 48 KB | 48 KB | 64 KB | 32 KB | 16 KB | 32 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 4 KB | 8 KB |
| Maximum 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 |
| USB Peripheral | No | No | No | No | No | Yes (USB OTG) |
| Temperature Grade | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
| General-Purpose I/O | 35 | 35 | 35 | 35 | 35 | 35 |
Key Differentiators
- Higher Flash density within the same 44-pin TQFP footprint (vs PIC24FJ32GA004-I/PT)
- Industrial temperature grade at lower cost than extended grade (vs PIC24FJ48GA004-E/PT)
- No USB peripheral - smaller Flash for non-USB designs (vs PIC24FJ32GB004-I/PT)
Design Notes
Estimated: at 32 MHz full-speed with all peripherals active the PIC24FJ48GA004-I/PT typically draws ~22 mA at 3.3V; in Deep Sleep with RTCC running it drops to ~20 uA. Place a 10 uF bulk + 0.1 uF ceramic pair on each VDD/VSS pair, and a dedicated 10 uF + 0.1 uF pair on VCAP/VDDCORE pin 19 (mandatory). Disable the on-chip regulator via DISVREG pin 18 tied to VSS only if your board supplies an external core rail; otherwise leave DISVREG tied to VSS to use the internal 2.5V core regulator.
All VSS pins (pins 9, 28) and all VDD pins (pin 10, plus AVDD pin 36) must be bonded, even on simple designs - per the manufacturer datasheet, leaving any supply pin floating can cause programming failure or unstable operation. The 44-pin TQFP uses 0.8 mm pitch; route power and ground on the top layer under the IC body. For noise-sensitive analog work (ADC, CVREF), separate AGND and DGND at a single star point near the IC and keep analog traces short.
A common pitfall is selecting the wrong oscillator mode in the configuration bits: choosing the PLL with an out-of-spec input frequency will lock up the CPU. Always validate the OSCCON setting before committing firmware. Another common mistake is forgetting to assign remappable peripheral pins (RPn) in the PPS register before use - remappable peripherals default to disabled. Finally, the DISVREG pin must NEVER be left floating; it must be tied to VSS for normal internal regulator operation.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - use PIC24F automotive-grade variants for vehicle applications. Lead-free (Pb-free) reflow compatible. Halogen-free status not explicitly listed in provided data.