PIC24HJ32GP202-H/SO - 16-bit 32KB Flash MCU 40MIPS | Microchip
MPN: PIC24HJ32GP202-H/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.2 | $62.00 |
| 100 | $5.45 | $545.00 |
| 500 | $4.78 | $2,390.00 |
| 1,000 | $4.12 | $4,120.00 |
PIC24HJ32GP202-H/SO Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (FLASH/ROM), working memory (RAM), and peripheral interfaces such as timers, ADC, communication ports (UART/SPI/I2C), and GPIO into one IC. The PIC24H family sits in the broader PIC24/dsPIC33 16-bit DSC taxonomy (16-bit microcontroller -> 16-bit DSC -> microcontroller -> embedded processor -> semiconductor) and uses a modified Harvard architecture with a 24-bit instruction word. Designers choose PIC24H parts when 8-bit MCUs run out of headroom but 32-bit ARM Cortex-M parts are over-spec for cost or power reasons.
Key features include 16-channel 10/12-bit ADC, two UART, one SPI, one I2C, two I2S, and nine 16-bit timers. The CPU includes a hardware 16 x 16 multiply, a 32/16 and 16/16 divide, and DSP-aware addressing modes inherited from the dsPIC33 family. The part is pin-compatible with the dsPIC33F family, enabling seamless migration to DSP-capable firmware without board rework.
Typical applications include automotive body and chassis ECUs, industrial motor control loops, sensor conditioning front-ends, and digital power conversion. The high 40 MIPS throughput at 3.3V lets the device execute PID control loops and digital filter routines in well under one control period. The internal oscillator eliminates an external crystal on cost-sensitive designs while still supporting field-reprogramming.
When designing with this part, budget for a 1.5-2.0 mA active current per MIPS and a 5 uA typical sleep current for battery-operated applications. Use the ICD 3 or PICkit 3 programmer for in-circuit debug, and verify that the H temperature grade (-40C to +150C) is required - the cheaper I-grade (-40C to +85C) PIC24HJ32GP202-I/SO variant covers most commercial use cases.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a faster sourcing and selection decision.
Drop-in alternatives for PIC24HJ32GP202-H/SO — 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-H/SO (same form factor and footprint) — differing in ADC, Package, Core Architecture, Operating Temperature, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24HJ32GP202-I/SO
✅ Drop-In✓ In Stock
$2.72 / Unit
View Datasheet →PIC24HJ32GP202-E/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24HJ32GP202-H/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24HJ32GP202-H/MM
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ32GP204-H/SO
✅ Drop-In📋 Reference alternative (not in catalog)
dsPIC33FJ32GP202-H/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24HJ12GP202-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ32GP202-H/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24H 16-bit modified Harvard |
| Program Memory (FLASH) | 32 KB (11K x 24 instructions) |
| RAM | 2 KB (2K x 8) |
| Maximum CPU Speed | 40 MIPS |
| Maximum Clock Frequency | 40 MHz |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| Number of I/O Pins | 21 |
| ADC | 10-bit / 12-bit, up to 16 channels |
| Timers | 9 x 16-bit |
| Communication Interfaces | 2x UART, 1x SPI, 1x I2C, 2x I2S |
| Connectivity (per Microchipusa) | I2C, IRDA, LIN, SPI, UART |
| Oscillator | Internal (with PLL) |
| Operating Temperature Range | -40C to +150C (H grade) |
| Package | 28-SOIC (0.209 inch / 5.30 mm wide body) |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
| RoHS Status | Compliant |
PIC24HJ32GP202-H/SO Pin Configuration
| Pin 1 | MCLR — Master Clear (Reset) input, active-low |
| Pin 2 | RA0 — Port A bit 0 / analog AN0 |
| Pin 3 | RA1 — Port A bit 1 / analog AN1 |
| Pin 4 | RA2 — Port A bit 2 / analog AN2 |
| Pin 5 | RA3 — Port A bit 3 / analog AN3 |
| Pin 6 | RA4 — Port A bit 4 |
| Pin 7 | AVDD — Analog supply voltage |
| Pin 8 | AVSS — Analog ground |
| Pin 9 | OSC1 — Oscillator input / external clock input |
| Pin 10 | OSC2 — Oscillator output |
| Pin 11 | RC0 — Port C bit 0 |
| Pin 12 | RC1 — Port C bit 1 |
| Pin 13 | RC2 — Port C bit 2 |
| Pin 14 | VSS — Digital ground |
| Pin 15 | RC3 — Port C bit 3 |
| Pin 16 | RC4 — Port C bit 4 |
| Pin 17 | RC5 — Port C bit 5 |
| Pin 18 | RB0 — Port B bit 0 / analog AN4 |
| Pin 19 | RB1 — Port B bit 1 / analog AN5 |
| Pin 20 | RB2 — Port B bit 2 / analog AN6 |
| Pin 21 | RB3 — Port B bit 3 / analog AN7 |
| Pin 22 | RB4 — Port B bit 4 / analog AN8 |
| Pin 23 | RB5 — Port B bit 5 / analog AN9 |
| Pin 24 | RB6 — Port B bit 6 / programming clock |
| Pin 25 | RB7 — Port B bit 7 / programming data |
| Pin 26 | RB8 — Port B bit 8 / analog AN8 |
| Pin 27 | RB9 — Port B bit 9 / analog AN9 |
| Pin 28 | VDD — Digital supply voltage (3.0-3.6 V) |
Typical Applications
PIC24HJ32GP202-H/SO is suitable for 6 applications: Automotive Body and Chassis ECUs, Industrial Motor Control Loops, Digital Power Conversion (DC-DC, PFC), Sensor Conditioning and Data Acquisition, Building Automation (HVAC, Lighting), Audio Effects Processing and Consumer DSP.
Automotive Body and Chassis ECUs
The PIC24HJ32GP202-H/SO is well-suited for automotive body and chassis ECUs such as HVAC flap motors, seat controllers, mirror adjusters, and lighting modules. The H-grade -40C to +150C junction temperature range handles under-hood and dashboard ambient conditions without derating. The 40 MIPS core executes LIN and CAN-style state machines, debounces switch inputs, and drives PWM outputs for actuators inside a tight control loop. The 32 KB FLASH accommodates a full LIN slave stack plus diagnostic routines, while the 2 KB RAM holds CAN-style message buffers. Compared with cheaper 8-bit MCUs, the PIC24H's 16-bit datapath halves the instruction count for control math, freeing cycles for safety diagnostics.
Recommended
Industrial Motor Control Loops
The PIC24HJ32GP202-H/SO fits BLDC, PMSM, and stepper motor control loops where 10-50 kHz current-loop bandwidth is required. Its 40 MIPS execution rate runs a Park/Clarke transform plus PI controller in under 5 us per control period. The 16-channel 10/12-bit ADC samples phase currents through current-sense amplifiers with sufficient resolution for torque-ripple mitigation. The two UART and one SPI port interface to external gate drivers (e.g., Microchip's MCP8024) and resolver/digital encoder front-ends. Compared with software-only 8-bit loops, the hardware 16 x 16 multiplier closes the loop in a fraction of the cycles.
Recommended
Digital Power Conversion (DC-DC, PFC)
For digital DC-DC converters and power-factor-correction stages, the PIC24HJ32GP202-H/SO executes voltage-mode and average-current-mode control at 100-250 kHz switching frequencies. The 40 MIPS throughput handles state-machine-based control, ADC-triggered sampling on PWM edges, and slope compensation math within one switching period. The 32 KB FLASH holds voltage-loop firmware plus housekeeping telemetry. The H temperature grade allows placement near magnetics without thermal derating. Compared with a fixed-function analog controller, the PIC24H enables digital soft-start, adaptive dead-time, and telemetry over UART/SPI for predictive maintenance.
Recommended
Sensor Conditioning and Data Acquisition
The PIC24HJ32GP202-H/SO is a strong fit for multi-channel sensor acquisition front-ends in industrial instrumentation and process control. Its 16-channel 10/12-bit ADC digitizes thermocouples, strain gauges, RTDs, and 4-20 mA loops with on-chip PGA support. The 32 KB FLASH holds linearization tables and digital filtering (FIR/IIR) per channel. The 2 KB RAM buffers sample bursts before transmitting over UART, SPI, or I2C to a host PLC. Compared with discrete ADC + MCU architectures, integrating conversion and control into one PIC24H chip reduces BOM and simplifies firmware maintenance.
Recommended
Building Automation (HVAC, Lighting)
For HVAC damper control, VAV box actuation, and DALI lighting ballasts, the PIC24HJ32GP202-H/SO provides the 16-bit math headroom for PID loops and DALI protocol handling. The 21 I/O pins drive triac interfaces, capture zero-crossing events, and read temperature/humidity sensors. The 40 MIPS core executes DALI 16-bit Manchester decoding with margin to spare for soft-start routines and lamp-aging compensation. The H temperature grade supports plenum-mounted installations. Compared with 8-bit predecessors, the PIC24H enables field firmware upgrades via UART bootloader for site commissioning.
Recommended
Audio Effects Processing and Consumer DSP
The PIC24HJ32GP202-H/SO and its pin-compatible sibling dsPIC33FJ32GP202-H/SO handle audio effects processing in consumer amplifiers and guitar pedals. The CPU's DSP-aware addressing modes and single-cycle MAC let it run biquad filters, reverb tails, and compressor envelopes in real time at 48 kHz. The two I2S ports interface to external audio CODECs (e.g., AK4556), while the 32 KB FLASH holds multiple preset banks. Compared with a fixed-function DSP, the PIC24H offers reprogrammable preset slots without hardware change, easing product line variants.
Recommended
Recommended Products Summary
Engineering reference data for PIC24HJ32GP202-H/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24HJ32GP202-I/SO | PIC24HJ32GP202-E/SO | PIC24HJ32GP202-H/SP | PIC24HJ32GP202-H/MM | dsPIC33FJ32GP202-H/SO | PIC24HJ12GP202-I/SO |
|---|---|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC (same) | 28-SOIC (same) | 28-SPDIP (thru-hole, same pinout) | 28-QFN (same pinout) | 28-SOIC (same) | 28-SOIC (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| FLASH Program Memory | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 12 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB |
| Maximum MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Temperature Grade | H -40C to +150C | I -40C to +85C | E -40C to +125C | H -40C to +150C | H -40C to +150C | H -40C to +150C | I -40C to +85C |
| DSP Engine | No (PIC24H plain CPU) | No | No | No | No | Yes (dsPIC33F DSP) | No |
| Number of I/O | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| 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 | 3.0 V to 3.6 V |
Key Differentiators
- H-grade automotive temperature range in standard 28-SOIC (vs PIC24HJ32GP202-I/SO)
- Pin-compatible upgrade path to dsPIC33F DSP (vs dsPIC33FJ32GP202-H/SO)
- Same-die 28-QFN option for compact designs (vs PIC24HJ32GP202-H/MM)
Design Notes
Power the PIC24HJ32GP202-H/SO from a regulated 3.3 V rail within the 3.0-3.6 V VDD window per Microchip datasheet DS70289. Place a 0.1 uF X7R decoupling ceramic within 5 mm of each VDD/VSS pin pair, plus a 10 uF bulk tantalum or ceramic at the regulator output. The MCU draws approximately 1.5-2.0 mA per MIPS active; at 40 MIPS budget for 60-80 mA core current including ADC and I/O switching. For sleep modes the part falls to ~5 uA typical, but watch I/O pin leakage (max 1 uA per pin) when computing battery life.
The PIC24HJ32GP202-H/SO is rated H-grade -40C to +150C junction, which covers automotive under-hood and outdoor industrial use cases. The 28-SOIC package has thermal resistance around 80-90 C/W (theta_JA) without a copper pour; with 1 square inch of 2 oz copper on the SOIC pads, theta_JA drops to 45-55 C/W. Estimated: at 40 MIPS with 80 mA active current and 3.3 V supply, total power is about 264 mW, yielding roughly 25 C junction rise over ambient with good PCB copper. No heatsink is required; just route GND copper under the package for spreading.
Follow Microchip's PIC24H PCB layout guidelines in section 2 of DS70289: keep the oscillator traces within 1 cm of the OSC1/OSC2 pins, shield the crystal body with a GND ring, and avoid routing high-speed switching signals (PWM, SPI clock) parallel to analog ADC traces. Place the ICSP/ICD programming header (PGED1 on RB7, PGEC1 on RB6) on the same PCB edge to allow in-circuit debug access. The MCLR pin requires a 10 kohm pull-up to VDD and a 100 nF cap to GND for clean reset; this is critical for ICD 3 and PICkit 3 debug reliability.
Three common pitfalls when bringing up the PIC24HJ32GP202-H/SO: (1) Forgetting to configure the CONFIG register fuse bits - especially the IESO bit for internal oscillator switching and the JTAGEN bit which disables JTAG on RB6/RB7 by default; (2) Using the PIC24H device ID 0x3000 in MPLAB X but selecting the dsPIC33F device ID 0x0Fxx - the firmware will not load; (3) Driving MCLR low with an open-drain transistor without a series resistor causes repeated reset pulses during power-up. Always read the latest errata (DS80289) before finalizing firmware.
Compliance Information
RoHS compliant per Microchip product declarations. H-grade temperature rating covers automotive ambient but base part is not formally AEC-Q100 qualified - use dsPIC33A or PIC32CM for ASIL-classified applications. Lead-free and halogen-free per Microchip packaging materials declaration.
