PIC24HJ12GP202-I/SP - 16-bit 40 MIPS MCU, 12KB Flash | Microchip
MPN: PIC24HJ12GP202-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.62 | $5.62 |
| 10 | $5.15 | $51.50 |
| 100 | $4.62 | $462.00 |
| 500 | $4.1 | $2,050.00 |
| 1,000 | $3.74 | $3,740.00 |
PIC24HJ12GP202-I/SP Overview
A microcontroller (MCU) is a single-chip computer containing a CPU, program memory (Flash/ROM), data memory (RAM), and integrated peripherals such as timers, ADC, communication interfaces, and I/O. Within the broader taxonomy, the PIC24H belongs to the 16-bit MCU category, sitting between 8-bit MCUs (PIC16, PIC18) and 32-bit MCUs (PIC32, ARM Cortex-M). It is engineered for applications that demand deterministic real-time response, high-resolution PWM, fast ADC sampling, and digital signal processing-like arithmetic without the cost or power of a dedicated DSP.
Key features include a 16-bit modified Harvard architecture with a single-cycle multiply, 4 K x 24 Flash organized as instruction and data words, a 10/12-bit ADC with multiple channels, multiple 16-bit timers, UART, SPI, and I2C peripherals, plus five general-purpose 16-bit timer/counters and an input-capture/output-compare module. The 5-cycle latency interrupt controller supports zero-overhead nested interrupts, which is critical for power conversion and motor control loops.
Architecturally, the PIC24HJ12GP202 leverages a wide 24-bit instruction word, a deterministic pipeline, and dedicated DSP-oriented arithmetic (multiply-accumulate capability on larger family members). Its 40 MIPS rating at 40 MHz is the headline figure for real-time loop budget. The internal oscillator, PLL, and brown-out reset support a robust standalone design without external clock or supervisor components.
Typical applications include digital power supplies, motor control (BLDC, PMSM, stepper), LED lighting controllers, industrial sensor signal conditioning, and low-end DSP tasks such as digital filtering or audio processing. When designing with this part, allocate the Flash for both bootloader and application code if field-upgrade is required, and provide proper decoupling (100 nF + bulk) on each VDD/AVDD pair as recommended in the datasheet.
This page synthesizes distributor pricing, drop-in package-compatible alternatives from the same Microchip PIC24H family, application guidance, and design notes not typically aggregated on a single manufacturer datasheet page.
Drop-in alternatives for PIC24HJ12GP202-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 PIC24HJ12GP202-I/SP (same form factor and footprint) — differing in Package, Timers, Core Architecture, ADC, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24HJ12GP202-E/SP
✅ Drop-In✓ In Stock
$3.78 / Unit
View Datasheet →DSPIC33FJ12GP202-I/SP
✅ Drop-In✓ In Stock
$2.69 / Unit
View Datasheet →PIC24HJ12GP201-I/P
✅ Drop-In✓ In Stock
$2.52 / Unit
View Datasheet →PIC24HJ12GP201-E/P
✅ Drop-In✓ In Stock
$1.87 / Unit
View Datasheet →PIC24FV16KM202-I/SS
✅ Drop-In✓ In Stock
$3.07 / Unit
View Datasheet →PIC24HJ12GP202-I/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit Modified Harvard (PIC24H) |
| Program Memory (Flash) | 12 KB (4K x 24) |
| Data RAM | 1 KB (1024 bytes) |
| Maximum CPU Speed | 40 MIPS at 40 MHz |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| Package / Case | 28-pin SPDIP (SP) |
| Mounting Type | Through-Hole |
| I/O Pins | 21 |
| Timers | 5 x 16-bit |
| ADC | 10-bit, multi-channel |
| Communication | UART, SPI, I2C |
| Pin Compatibility | dsPIC33F family |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| MSL Level | 1 (unlimited) |
| Lifecycle Status | Active |
PIC24HJ12GP202-I/SP Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | RA0/AN0 — Port A bit 0 / ADC analog input 0 |
| Pin 3 | RA1/AN1 — Port A bit 1 / ADC analog input 1 |
| Pin 4 | RA2/AN2 — Port A bit 2 / ADC analog input 2 |
| Pin 5 | RA3/AN3 — Port A bit 3 / ADC analog input 3 |
| Pin 6 | RA4 — Port A bit 4 |
| Pin 7 | AVDD — Analog supply voltage |
| Pin 8 | AVSS — Analog ground |
| Pin 9 | OSC1/CLKIN — Crystal oscillator input / external clock |
| Pin 10 | OSC2/CLKOUT — Crystal oscillator output / system clock out |
| Pin 11 | RC0 — Port C bit 0 |
| Pin 12 | RC1 — Port C bit 1 |
| Pin 13 | RC2 — Port C bit 2 |
| Pin 14 | RC3 — Port C bit 3 |
| Pin 15 | RC4 — Port C bit 4 |
| Pin 16 | RC5 — Port C bit 5 |
| Pin 17 | RC6 — Port C bit 6 / TX1 |
| Pin 18 | RC7 — Port C bit 7 / RX1 |
| Pin 19 | VSS — Digital ground |
| Pin 20 | VDD — Digital supply voltage (3.0V-3.6V) |
| Pin 21 | RB0 — Port B bit 0 |
| Pin 22 | RB1 — Port B bit 1 |
| Pin 23 | RB2 — Port B bit 2 |
| Pin 24 | RB3 — Port B bit 3 |
| Pin 25 | RB4 — Port B bit 4 |
| Pin 26 | RB5 — Port B bit 5 |
| Pin 27 | RB6/PGC — Port B bit 6 / ICSP clock |
| Pin 28 | RB7/PGD — Port B bit 7 / ICSP data |
Typical Applications
PIC24HJ12GP202-I/SP is suitable for 8 applications: Digital Power Supply Control, Brushless DC Motor Control, LED Lighting Controllers, Industrial Sensor Signal Conditioning, Audio Processing / DSP-Lite Filtering, Industrial HVAC Control, Battery-Operated Portable Devices, Automotive Auxiliary Control.
Digital Power Supply Control
The PIC24HJ12GP202-I/SP fits digital power supply control because of its 40 MIPS throughput, 16-bit PWM resolution, and 10-bit ADC with fast conversion. The 5-cycle latency interrupt controller lets the firmware execute a tight voltage-mode or peak-current-mode control loop at hundreds of kHz switching frequencies with deterministic jitter. Typical topologies include buck, boost, and PFC stages. Place the MCU close to the power stage, decouple AVDD separately, and route the analog feedback through dedicated ADC channels with RC filters to minimize switching noise injection.
Recommended
Brushless DC Motor Control
The PIC24HJ12GP202-I/SP runs sensorless or sensored BLDC motor commutation loops thanks to its 16-bit timers with input-capture for Hall/encoder feedback, PWM outputs with complementary modes, and 40 MIPS control budget. The high-resolution PWM and configurable dead-time generators simplify three-phase inverter drive code, while the ADC samples back-EMF for sensorless startup. The same firmware skeleton ports directly to the dsPIC33F for added vector (FOC) control on the same PCB.
Recommended
LED Lighting Controllers
The PIC24HJ12GP202-I/SP is well suited to architectural and stage LED lighting control because its 16-bit PWM provides smooth dimming with millions of steps, and its UART/SPI/I2C ports accept standard lighting protocols. Multiple PWM channels drive independent LED strings, while the ADC reads ambient light or current sense for closed-loop brightness. Designers can drive WS2812-style addressable LEDs through SPI DMA or use the I2C port for DMX-over-I2C bridges, keeping the firmware loop responsive at full 40 MIPS.
Recommended
Industrial Sensor Signal Conditioning
The PIC24HJ12GP202-I/SP conditions analog sensor signals for industrial plants: the 10-bit ADC samples strain gauges, thermocouples, and 4-20 mA loops, while the digital filters in firmware implement moving-average and FIR noise reduction. The UART and I2C peripherals then forward the conditioned readings to a PLC, HMI, or industrial gateway. Industrial -40 to +85C operation and deterministic interrupt latency make this MCU a reliable drop-in data-acquisition front end.
Recommended
Audio Processing / DSP-Lite Filtering
The PIC24HJ12GP202-I/SP performs low-cost digital audio processing such as parametric EQ, simple reverb, or active crossover for hobbyist and prosumer audio products. The 16-bit MAC-enabled core runs FIR and IIR filters in real time at 40 MIPS, and the I2S or PWM DAC path drives class-D amplifiers. Although it lacks the dual MAC of the dsPIC33F, single-cycle multiply plus instruction/data-word flexibility handles 8 kHz and 16 kHz audio bands with ease.
Recommended
Industrial HVAC Control
The PIC24HJ12GP202-I/SP is used in HVAC controllers because it integrates a multi-channel ADC, several 16-bit timers, and UART for BACnet/MS-TP or Modbus communication. The 40 MIPS throughput executes PID loops for temperature, humidity, and fan-speed control with deterministic timing, while the industrial -40C to +85C rating handles rooftop and chiller environments. The 12 KB Flash fits the PID, scheduling, and board-support libraries without external memory.
Recommended
Battery-Operated Portable Devices
The PIC24HJ12GP202-I/SP fits battery-powered handheld devices such as data loggers, portable test gear, and wireless sensor nodes. Sleep currents in the microamp range and fast wake-up via the on-chip real-time interrupt calendar (RTCC) extend battery life, while the 3.3V single-supply rail works with a single-cell Li-ion or 3x AA chemistry. UART/SPI peripherals host Bluetooth or Sub-GHz radio modules for IoT edge nodes.
Recommended
Automotive Auxiliary Control
The PIC24HJ12GP202-I/SP serves in non-safety automotive modules such as HVAC blend-door actuators, lighting controllers, and body-comfort modules. The industrial temperature grade handles cabin environments, while 40 MIPS throughput drives LIN bus stacks and stepper-motor control for HVAC flaps. For harsher under-hood zones the extended-temperature PIC24HJ12GP202-E/SP is preferred, while still sharing the same package and pinout.
Recommended
Recommended Products Summary
Engineering reference data for PIC24HJ12GP202-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24HJ12GP202-E/SP | dsPIC33FJ12GP202-I/SP | PIC24HJ12GP201-I/P | PIC24HJ12GP201-E/P |
|---|---|---|---|---|---|
| Package | 28-pin SPDIP | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | 16-bit PIC24H | 16-bit PIC24H | 16-bit dsPIC33F (DSP) | 16-bit PIC24H | 16-bit PIC24H |
| Flash Memory | 12 KB | 12 KB | 12 KB | 6 KB | 6 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Max CPU Speed | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +125C |
| DSP ALU | No | No | Yes (MAC engine) | No | No |
Key Differentiators
- Highest Flash density in PIC24H 28-SPDIP family (vs PIC24HJ12GP201-I/P)
- Industrial temperature grade at standard pricing (vs PIC24HJ12GP202-E/SP)
- Future upgrade path to DSP without PCB change (vs dsPIC33FJ12GP202-I/SP)
Design Notes
The PIC24HJ12GP202-I/SP VDD supply must be in the range 3.0V to 3.6V. Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of each VDD/AVDD pin, plus a bulk 10 uF tantalum or aluminum polymer near the supply input. Power-on reset and brown-out reset thresholds are 2.7 V and 4.0 V nominal; ensure supply ramp is monotonic and the bulk cap holds VDD above the BOR threshold during inrush.
Route the analog signal paths (AN0-AN3) away from switching traces and PWM outputs to minimize digital noise coupling into the ADC. Keep the crystal traces short and symmetric, and surround the OSC1/OSC2 area with a ground pour. Use a ferrite bead or resistor between VDD and AVDD to filter analog supply noise, as recommended in the datasheet.
Estimated: at 40 MHz, 3.3V, and typical 30 mA active core current, dissipation is about 100 mW. With the 28-pin SPDIP theta_JA of roughly 75 C/W, the junction rise above 25C ambient is 7.5 C, well within the 85C industrial ceiling. Forced airflow is not required for most designs.
Do not drive MCLR low during ICSP programming without the correct pull-up configuration. Do not exceed the 3.6V absolute maximum on any digital I/O pin. When migrating to dsPIC33F code, ensure the configuration bits for the DSP ALU are set correctly or the device will run in PIC24H-compatible mode.
Compliance Information
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified; choose PIC24HJ12GP202-E/SP for higher temperature. Halogen-free status unknown; not stated in the provided data.
