PIC24FJ16GA002T-I/SS - 16-bit MCU, 16KB Flash, 32MHz, SSOP-28 | Microchip
MPN: PIC24FJ16GA002T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.14 | $1.14 |
| 10 | $1.08 | $10.80 |
| 100 | $0.95 | $95.00 |
| 500 | $0.84 | $420.00 |
| 1,000 | $0.76 | $760.00 |
PIC24FJ16GA002T-I/SS Overview
What is a 16-bit microcontroller? A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), and a rich set of on-chip peripherals such as ADC, timers, communication controllers, and GPIO. The PIC24FJ family sits in Microchip's hierarchy of PIC microcontroller -> 16-bit PIC24F sub-family -> low-power nanoWatt technology line -> mixed-signal peripherals family. It is positioned for low-power, cost-sensitive embedded applications that need more performance and peripherals than 8-bit PIC MCUs but at lower power than dsPIC or PIC32 devices.
Key features of the PIC24FJ16GA002T-I/SS include nanoWatt power management for extended battery life, real-time clock and calendar (RTCC), 17-bit x 17-bit single-cycle hardware multiplier, 32-bit/16-bit hardware divider, multiple power-saving modes (Sleep, Idle, Doze), and an integrated ICD/ICSP debug interface. The T-suffix indicates tape-and-reel packaging, the I-suffix denotes the -40 °C to +85 °C industrial temperature range, and /SS denotes the 28-pin SSOP package.
The device operates from 2.0 V to 3.6 V supply and is built around a RISC Harvard architecture optimized for C compiler efficiency. Internal oscillator options (8 MHz, 32 kHz) reduce external component count. The 16-bit instruction width and 24-bit instruction set provide a balanced code-density-to-performance ratio.
Typical applications include low-power sensor nodes, portable instrumentation, lighting control, USB/HID peripherals, automotive body electronics, and battery-powered IoT devices. Designers often pair this MCU with external EEPROM, sensors, and wireless modules.
Design consideration: ensure decoupling with 0.1 µF and 10 µF capacitors close to VDD/VSS pins. The ICSP programming pins (PGECx/PGEDx) must be reserved with no series components that exceed 50 pF or 200 Ω, and the MCLR pull-up should be sized to allow in-circuit debug reset.
This page consolidates verified distributor pricing, drop-in compatible alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24FJ16GA002T-I/SS — 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 PIC24FJ16GA002T-I/SS (same form factor and footprint) — differing in ADC, Operating Temperature, Package, Program Memory (Flash), Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ16GA002-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ16GA002T-I/SO
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →PIC24FJ16GA002T-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FV08KM102-E/SS
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC24EP32GP202-H/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ16GA002T-I/ML
✅ Drop-In✓ In Stock
$2.51 / Unit
View Datasheet →PIC24FJ16GA002T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit PIC24F RISC |
| CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 16 KB (5.5K x 24 instruction words) |
| Data RAM | 4 KB |
| I/O Pins | 21 |
| ADC | 10 channels, 10-bit |
| Timers | 7 (Timer1 RTCC + 16-bit + 32-bit) |
| PWM Modules | 5 |
| Communication Interfaces | 2x UART, 2x SPI, 2x I2C |
| Comparators | 2 analog comparators |
| Supply Voltage | 2.0 V to 3.6 V |
| Operating Temperature | -40 °C to +85 °C (industrial) |
| Package | 28-pin SSOP (/SS) |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| ICSP/ICD | Yes (4-wire, integrated) |
| Power-Saving Modes | nanoWatt (Sleep, Idle, Doze) |
PIC24FJ16GA002T-I/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low; tie to VDD via 10 kΩ pull-up |
| Pin 2 | RA0/AN0 — GPIO RA0 / Analog input AN0 |
| Pin 3 | RA1/AN1 — GPIO RA1 / Analog input AN1 |
| Pin 4 | RB0/AN2 — GPIO RB0 / Analog input AN2 / PGED1 |
| Pin 5 | RB1/AN3 — GPIO RB1 / Analog input AN3 / PGEC1 |
| Pin 6 | RB2/AN4 — GPIO RB2 / Analog input AN4 |
| Pin 7 | RB3/AN5 — GPIO RB3 / Analog input AN5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/RA2 — Crystal oscillator input or GPIO RA2 |
| Pin 10 | OSC2/RA3 — Crystal oscillator output or GPIO RA3 |
| Pin 11 | RA4 — GPIO RA4 |
| Pin 12 | VDD — Positive supply voltage (2.0 V to 3.6 V) |
| Pin 13 | RB4/AN6 — GPIO RB4 / Analog input AN6 |
| Pin 14 | RB5/AN7 — GPIO RB5 / Analog input AN7 |
| Pin 15 | RB6/AN9/PGC2 — GPIO RB6 / Analog input AN9 / ICSP clock PGC2 |
| Pin 16 | RB7/AN8/PGD2 — GPIO RB7 / Analog input AN8 / ICSP data PGD2 |
| Pin 17 | RC0 — GPIO RC0 |
| Pin 18 | RC1 — GPIO RC1 |
| Pin 19 | RC2 — GPIO RC2 |
| Pin 20 | VSS — Ground reference |
| Pin 21 | RC3 — GPIO RC3 |
| Pin 22 | RC4 — GPIO RC4 |
| Pin 23 | RC5 — GPIO RC5 |
| Pin 24 | RC6 — GPIO RC6 |
| Pin 25 | RC7 — GPIO RC7 |
| Pin 26 | RB8 — GPIO RB8 |
| Pin 27 | RB9 — GPIO RB9 |
| Pin 28 | VDD — Positive supply voltage (2.0 V to 3.6 V) |
Typical Applications
PIC24FJ16GA002T-I/SS is suitable for 6 applications: Low-Power Wireless Sensor Nodes, Industrial Sensor Conditioning & Control, Portable Instrumentation & Data Loggers, LED Lighting Control & Color Mixing, USB/HID Peripheral Devices (Software Bit-Bang), Automotive Body Electronics (Industrial-Grade).
Low-Power Wireless Sensor Nodes
The PIC24FJ16GA002T-I/SS is well matched to battery-powered wireless sensor nodes because its nanoWatt power-saving modes drive quiescent current below typical sleep-current thresholds of competing 8-bit MCUs. The 32 MHz core (16 MIPS) easily handles pre-encryption and packet framing for sub-GHz or BLE-coprocessor designs, while 4 KB RAM is sufficient for stack plus a 64-byte sensor buffer. Designers typically pair this MCU with an SPI-connected radio (such as the MRF24J40 or an external BLE module) and rely on the 10-bit ADC to digitize thermistor or battery-monitor channels. The 16 KB Flash comfortably fits Microchip's MiWi or a simple proprietary stack plus application logic, and the SSOP-28 footprint keeps the BOM area under 10 mm x 10 mm for coin-cell powered designs.
Recommended
Industrial Sensor Conditioning & Control
In industrial sensing applications, the PIC24FJ16GA002T-I/SS provides 21 GPIO for connecting multiple 4-20 mA loops, digital isolators, and status LEDs. The integrated 10-bit ADC with 10 channels is adequate for bridge-sensor readout after external instrumentation amp gain, while dual UART enables simultaneous Modbus RTU master and debug-console output. The 32 MHz MIPS throughput handles IEC 61131-3 style control loops at 1 kHz sample rate without CPU saturation. Industrial-grade -40 °C to +85 °C operation matches PLC and HMI environments. A typical circuit places a TVS2579A transient suppressor on the 24 V input rail, an MCP1700 LDO stepping down to 3.3 V for the MCU, and 0.1 µF ceramic decoupling on every VDD/VSS pair.
Recommended
Portable Instrumentation & Data Loggers
Portable data loggers benefit from the PIC24FJ16GA002T-I/SS combination of 16 KB Flash firmware space, 4 KB RAM data buffer, and low-power Sleep modes that drop current to microampere levels between sample windows. Designers can store thousands of 10-bit ADC samples in RAM before batching to external SPI EEPROM or SD-card interface. The dual I2C ports allow simultaneous connection of an I2C EEPROM for configuration storage and a real-time clock for timestamping. The 32 MHz CPU finishes a 1024-sample FIR filter pass in well under 1 ms, leaving headroom for housekeeping. Industrial -40 °C to +85 °C operation makes the part viable for field-deployed logger enclosures exposed to outdoor temperature swings.
Recommended
LED Lighting Control & Color Mixing
LED lighting controllers and DMX-decorative fixtures fit naturally on the PIC24FJ16GA002T-I/SS because the device exposes 5 PWM channels with 16-bit resolution for smooth color mixing or dimming curves. The 32 MHz MIPS core computes CIE-1931 gamma correction and fades without noticeable flicker, while 4 KB RAM holds a 512-step lookup table per channel. The integrated 10-bit ADC handles ambient-light sensing via a photodiode input, and dual UART is convenient for DMX-512 (RS485) plus UART console. The SSOP-28 package is small enough to fit into retrofit bulb form factors. A typical reference design uses MOSFET drivers from the TC1597 family or simple logic-level N-FETs driven directly from GPIO for low-cost constant-current designs.
Recommended
USB/HID Peripheral Devices (Software Bit-Bang)
Although the PIC24FJ16GA002T-I/SS does not integrate a USB transceiver, it can implement low-speed USB HID devices via software bit-banging on two GPIO pins (D+/D-) using the 32 MHz MIPS core to meet the 1.5 Mbps low-speed edge timing budget. The 16 KB Flash comfortably accommodates the USB specification descriptor stack plus application logic, while 4 KB RAM handles HID report buffers. This approach trades PCB area for BOM cost, since no external USB transceiver is required. Designers typically use Microchip's free USB stack for PIC24F and reference design application notes. For new designs, Microchip recommends the PIC24FJ64GB002 family which integrates USB and drops into a similar SSOP footprint with increased Flash.
Recommended
Automotive Body Electronics (Industrial-Grade)
The industrial-grade PIC24FJ16GA002T-I/SS is acceptable for non-safety automotive body electronics such as interior lighting, HVAC fan controllers, seat-memory switches, and accessory multiplexers where -40 °C to +85 °C is sufficient. The 5 PWM modules drive motors and lighting dimmers, the 10-bit ADC reads switch-position and temperature sensors, and dual UART supports LIN slave via a small external LIN transceiver. For under-hood or safety-critical applications, Microchip's E-suffix PIC24FJ16GA002T-E/SS variant extends operation to +125 °C. The automotive-grade part remains drop-in compatible, requiring only firmware adjustment and the addition of automotive EMI filtering on supply rails.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ16GA002T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ16GA002-I/SS | PIC24FJ16GA002T-I/SO | PIC24FJ16GA002T-E/SS | PIC24FV08KM102-E/SS | PIC24EP32GP202-H/SS |
|---|---|---|---|---|---|---|
| Package | 28-pin SSOP (/SS) | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 70 MHz / 70 MIPS |
| Flash Program Memory | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB | 32 KB |
| Data RAM | 4 KB | 4 KB | 4 KB | 4 KB | 2 KB | 8 KB |
| Supply Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 5.5 V | 3.0 V to 3.6 V |
| Operating Temperature | -40 °C to +85 °C (I grade) | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +150 °C |
| ADC Channels x Resolution | 10 ch x 10-bit | 10 x 10-bit | 10 x 10-bit | 10 x 10-bit | 16 x 12-bit | 9 x 10/12-bit |
Key Differentiators
- Larger Flash than lower-tier KM1xx family while keeping SSOP-28 footprint (vs PIC24FV08KM102-E/SS)
- Lower cost than PIC24EP performance family for moderate-speed designs (vs PIC24EP32GP202-H/SS)
- Lower-power nanoWatt technology versus PIC24EP performance core (vs PIC24EP32GP202-H/SS)
Design Notes
Estimated: bulk-decoupling of 10 µF tantalum or ceramic plus 0.1 µF ceramic per VDD/VSS pin pair is required; place the 0.1 µF within 5 mm of the IC. For battery-powered designs, route MCLR through a 10 kΩ pull-up to VDD and add 1 kΩ in series with the ICSP programmer to avoid current injection during debug. Use MCP1700 LDO for low-quiescent regulation; avoid switching regulators when nanoWatt Sleep mode < 1 µA target must be preserved.
Common PIC24FJ16GA002T-I/SS pitfalls include: (1) leaving PGEC1/PGED1 shared with application GPIO without isolating them - debug sessions will crash the application firmware; (2) forgetting that the device only supports ICSP at 3.3 V (no 5 V tolerant VDD); (3) using a 32.768 kHz crystal on the SOSC pins without load capacitors matched to the crystal CL - this causes RTC drift; (4) assuming USB support - this part has no USB peripheral and requires software bit-bang or an upgrade to the PIC24FJ64GB004 family.
At 32 MHz CPU clock and 3.3 V supply, the PIC24FJ16GA002T-I/SS typical core current is around 25 mA - well within the SSOP-28 thermal envelope. Estimated: at 85 °C ambient the junction temperature rises less than 10 °C above ambient (theta_JA ~85 °C/W for SSOP-28), so no heatsink is required for industrial applications. Sleep mode drops core current to under 1 µA, allowing battery-powered designs to last years on a single coin cell if average duty cycle stays below 0.1%.
Compliance Information
RoHS and REACH compliance per Microchip product page. The I-suffix industrial grade is not AEC-Q100 qualified; choose the E-suffix PIC24FJ16GA002T-E/SS variant for automotive-grade qualification per Microchip product documentation.
