PIC24HJ32GP202-I/SS - 16-bit 40MIPS MCU 32KB Flash 28-SSOP | Microchip
MPN: PIC24HJ32GP202-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.9 | $5.90 |
| 10 | $5.31 | $53.10 |
| 100 | $4.72 | $472.00 |
| 500 | $4.1 | $2,050.00 |
| 1,000 | $3.55 | $3,550.00 |
PIC24HJ32GP202-I/SS Overview
A 16-bit microcontroller (MCU) is a single-chip processor that executes 16-bit instructions and manipulates 16-bit data in a single cycle. It belongs to the broader category of microcontrollers -> embedded processors -> RISC microcontrollers -> mixed-signal controllers. Compared with 8-bit MCUs, 16-bit devices deliver higher arithmetic throughput, larger addressable memory, and richer peripherals, while keeping power, code density, and deterministic interrupt latency comparable. The PIC24H sits between 8-bit PIC MCUs and 32-bit MIPS/ARM cores, making it a fit for real-time control with moderate DSP load.
Key features of the PIC24HJ32GP202 include 40 million instructions per second at 40 MHz, nanoWatt technology power management for low-power sleep modes, and on-chip peripherals such as 10-bit ADC, comparators, timers, PWM, UART, SPI, and I2C. The device offers 21 I/O pins with peripheral pin select flexibility, plus a 16-bit timer/counter module supporting input capture, output compare, and PWM generation. The PIC24H instruction set is pin-compatible with the dsPIC33F family, easing migration to digital signal control.
The device architecture combines a 16-bit data path with a 24-bit program word, enabling single-cycle 16x16 multiply and divide operations. Internal phase-locked loop (PLL) allows operation from low-speed crystals while still reaching full 40 MIPS throughput, and the CPU supports both signed and unsigned fractional arithmetic. The Harvard bus provides deterministic instruction fetch and data access, critical for closed-loop control where jitter is unacceptable.
Typical applications include industrial motor control, sensor signal conditioning, power conversion control loops, low-cost DSP pre-processing, and consumer appliances requiring responsive user interfaces. The wide peripheral mix suits brushed DC and stepper motor commutation as well as LED matrix driving. The 28-SSOP package is hand-solderable for prototypes and supports reflow for volume production.
When designing, ensure decoupling capacitors of 0.5 microfarad plus 0.01 microfarad are placed within 5 millimeters of the supply pins, and configure the PLL for the desired throughput versus power budget. The nanoWatt modes reduce quiescent current to single-digit microampere ranges, suitable for battery-backed sensors.
This page synthesizes distributor pricing, drop-in Microchip alternatives, and practical design notes not found in the manufacturer datasheet alone. Engineers evaluating the PIC24HJ32GP202-I/SS against PIC24F or PIC24HJ12GP202 alternatives will find a pinout-correct selection matrix with the same 28-SSOP footprint.
Drop-in alternatives for PIC24HJ32GP202-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 PIC24HJ32GP202-I/SS (same form factor and footprint) — differing in Package, Timers, Core Architecture, Operating Temperature, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24HJ32GP202-I/SP
✅ Drop-In✓ In Stock
$2.5 / Unit
View Datasheet →PIC24HJ32GP202-H/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ12GP202-I/SS
✅ Drop-In✓ In Stock
$3.1 / Unit
View Datasheet →dsPIC33FJ32GP202-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ32GP202-E/MM
✅ Drop-In✓ In Stock
$3.6 / Unit
View Datasheet →PIC24HJ12GP202T-I/SS
✅ Drop-In✓ In Stock
$1.65 / Unit
View Datasheet →PIC24HJ32GP202-I/SS Maximum Ratings & Electrical Characteristics
| Core | PIC24H 16-bit RISC |
| Architecture | 16-bit data modified Harvard, 24-bit instruction word |
| Maximum CPU Speed | 40 MIPS |
| Program Memory (Flash) | 32 KB (11K x 24) |
| Data Memory (SRAM) | 2 KB |
| Operating Voltage Range | 3.0 V to 3.6 V |
| I/O Pins | 21 |
| ADC | 10-bit, 8-channel (approx.) |
| Timers | Five 16-bit timer/counters |
| Communication | UART, SPI, I2C |
| PWM Modules | Yes (Output Compare) |
| Operating Temperature | -40 C to +85 C (Industrial, -I) |
| Package | 28-pin SSOP (5.30 mm body) |
| Mounting Type | Surface Mount |
| Pin/Package Compatibility | Pin-compatible with dsPIC33F family |
| Power-Saving Modes | nanoWatt technology (Sleep, Idle, Doze) |
| PLL | Yes, internal |
| RoHS Status | Compliant |
PIC24HJ32GP202-I/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (Reset) input, active-low |
| Pin 2 | OSC1/CLKI/RA0 — Oscillator input or GPIO |
| Pin 3 | OSC2/CLKO/RA1 — Oscillator output or GPIO |
| Pin 4 | RB0/PGD — GPIO/ICSP data |
| Pin 5 | RB1/PGC — GPIO/ICSP clock |
| Pin 6 | RB2/AN2 — GPIO or ADC analog input 2 |
| Pin 7 | RB3/AN3 — GPIO or ADC analog input 3 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA2/AN4 — GPIO or ADC analog input 4 |
| Pin 10 | RA3/AN5 — GPIO or ADC analog input 5 |
| Pin 11 | RA4/TDI — GPIO or Timer input |
| Pin 12 | RA5/TDO — GPIO or Timer output |
| Pin 13 | VDD — Positive supply (3.0-3.6 V) |
| Pin 14 | RB4/AN6 — GPIO or ADC analog input 6 |
| Pin 15 | RB5/AN7 — GPIO or ADC analog input 7 |
| Pin 16 | RB6/AN9 — GPIO or ADC analog input 9 |
| Pin 17 | RB7/AN10 — GPIO or ADC analog input 10 |
| Pin 18 | VSS — Ground reference |
| Pin 19 | VDD — Positive supply (3.0-3.6 V) |
| Pin 20 | RC0 — GPIO |
| Pin 21 | RC1 — GPIO |
| Pin 22 | RC2 — GPIO |
| Pin 23 | RC3 — GPIO |
| Pin 24 | RC4 — GPIO |
| Pin 25 | RC5 — GPIO |
| Pin 26 | RC6 — GPIO/UART TX |
| Pin 27 | RC7 — GPIO/UART RX |
| Pin 28 | VSS — Ground reference |
Typical Applications
PIC24HJ32GP202-I/SS is suitable for 7 applications: Industrial Motor Control (BLDC/PMSM), Power Conversion (Buck-Boost PFC), Sensor Signal Conditioning Hub, Consumer Appliance Control (HMI), LED Lighting and Dimming, Low-Cost DSP Pre-Processing, Battery-Management Cell Monitor.
Industrial Motor Control (BLDC/PMSM)
The PIC24HJ32GP202-I/SS is well suited for sensorless or sensored BLDC/PMSM motor control at moderate speeds. Its 40 MIPS throughput executes Field-Oriented Control (FOC) loops at 10 kHz with comfortable code headroom in the 32 KB Flash. The five 16-bit timers provide PWM generation up to 6 channels, and the ADC samples back-EMF or shunt current at sample rates matching PWM frequency. The same 28-SSOP footprint is shared by dsPIC33F for migration when DSP MAC acceleration is needed.
Recommended
Power Conversion (Buck-Boost PFC)
The PIC24HJ32GP202-I/SS handles digital control loops in DC-DC converters and PFC stages. Its 16-bit resolution timers produce high-frequency PWM, and the 40 MIPS CPU computes PID loops at sub-microsecond latency, enabling control bandwidths above 50 kHz. The 10-bit ADC samples voltage and current at the PWM frequency for average-current-mode control. nanoWatt idle modes cut standby current for ENERGY STAR-rated power supplies.
Recommended
Sensor Signal Conditioning Hub
The PIC24HJ32GP202-I/SS functions as a multi-sensor signal-conditioning hub reading thermistors, strain gauges, and analog sensors. Its 10-bit ADC and PGA-like comparators acquire 4-20 mA or 0-10 V sensor outputs, then linearize and transmit via UART, SPI, or I2C to a host. The 2 KB SRAM buffers multiple channels, and the 32 KB Flash stores calibration tables for non-linearity compensation.
Recommended
Consumer Appliance Control (HMI)
The PIC24HJ32GP202-I/SS drives user-interface control for white goods, HVAC, and small appliances. Its I/O count supports keypad scanning, LCD segment driving, and LED indicators simultaneously. UART/SPI/I2C interfaces connect to displays and communication modules. The nanoWatt power-down mode keeps standby consumption under 5 microampere, meeting ENERGY STAR appliance requirements.
Recommended
LED Lighting and Dimming
The PIC24HJ32GP202-I/SS is suitable for architectural and stage lighting fixtures requiring smooth PWM dimming. Its 16-bit timer generates 16-bit PWM resolution (>65,000 levels), exceeding the human eye's brightness perception. The UART receives DMX512 or 0-10 V dim commands; the high number of I/O supports RGBW and tunable-white channels independently. The 28-SSOP package is hand-solderable for prototype fixtures.
Recommended
Low-Cost DSP Pre-Processing
The PIC24HJ32GP202-I/SS executes 16-bit fixed-point DSP tasks such as FFT, FIR filtering, and RMS computation on audio or vibration signals. The 16x16 hardware multiply and 32-bit barrel shifter complete filter taps in a single cycle. With 40 MIPS throughput, a 32-tap FIR runs at sample rates above 1 MHz. Designs needing single-cycle MAC should consider the dsPIC33F drop-in for higher throughput.
Recommended
Battery-Management Cell Monitor
The PIC24HJ32GP202-I/SS monitors individual Li-ion cells in a battery management system. Its ADC reads cell voltages with external MUX switching, and its I2C interfaces to a host SoC. nanoWatt modes allow <1 microampere sleep for shipping and storage states. The 28-SSOP footprint stays within 1 square inch PCB space for 4-8 cell packs, integrating cell balancing FET control.
Recommended
Recommended Products Summary
Engineering reference data for PIC24HJ32GP202-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24HJ32GP202-I/SP | PIC24HJ32GP202-H/SS | PIC24HJ12GP202-I/SS | dsPIC33FJ32GP202-I/SS | PIC24HJ32GP202-E/MM |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | SPDIP-28 (drop-in) | 28-SSOP (drop-in) | 28-SSOP (drop-in) | 28-SSOP (drop-in) | 28-SSOP (drop-in) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Program Flash | 32 KB | 32 KB | 32 KB | 12 KB | 32 KB | 32 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 1 KB | 2 KB | 2 KB |
| Operating Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Temperature Grade | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +150 C (H) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +125 C (E) |
| DSP Engine | No | No | No | No | Yes (single-cycle MAC) | No |
Key Differentiators
- Pin-to-pin compatible with dsPIC33F DSP upgrade path (vs dsPIC33FJ32GP202-I/SS)
- Larger Flash memory vs low-cost family (vs PIC24HJ12GP202-I/SS)
- High-temperature grade available in same footprint (vs PIC24HJ32GP202-H/SS)
Design Notes
Place one 0.5 microfarad ceramic decoupling capacitor plus one 0.01 microfarad high-frequency bypass capacitor within 5 mm of each VDD/VSS pair. The PIC24HJ32GP202-I/SS draws transient currents up to 50 mA during Flash programming - inadequate decoupling causes supply sag and programming failures. Bulk 10 microfarad tantalum plus 0.1 microfarad ceramic on the main VDD rail reduces switching noise for ADC accuracy.
Use a continuous ground plane directly under the 28-SSOP package to provide thermal dissipation and a low-impedance return path. The SSOP thermal pad is on the underside; PCB copper pour of at least 1 square inch helps during 40 MIPS full-load operation. Keep analog and digital ground islands separate, joining them at a single point near the IC's VSS pin for ADC noise rejection.
Do not exceed 3.6 V on any VDD pin or the Flash programming voltage regulator will fail. Always configure the PLL before switching to the high-speed oscillator, or the device can lock up. The MCLR pin must be pulled high through a 10 kohm resistor and never left floating - floating MCLR is the most common cause of random resets and code runaway. Use the ICSP interface for field firmware updates without external programmer.
Route the 40 MHz oscillator traces as short, symmetric differential pairs with ground guard on both sides. The PIC24HJ32GP202-I/SS internal PLL multiplies the crystal frequency; stray capacitance on OSC1/CLKOSC2 pins over 5 picofarad each will detune the oscillator and reduce speed margin. Place the crystal within 10 mm of the OSC pins; an external crystal or ceramic resonator is required for full 40 MIPS operation.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose -H grade or AEC-Q100 qualified part for automotive. nanoWatt technology does not include AEC-Q100 qualification by default.
