PIC24HJ64GP202-I/SO - 16-bit 40 MIPS MCU 64KB Flash | Microchip
MPN: PIC24HJ64GP202-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.95 | $6.95 |
| 10 | $6.3 | $63.00 |
| 100 | $5.6 | $560.00 |
| 500 | $5.05 | $2,525.00 |
| 1,000 | $4.55 | $4,550.00 |
PIC24HJ64GP202-I/SO Overview
A 16-bit MCU (microcontroller) is a single-chip computer that integrates a CPU core, program memory, data RAM, and a rich set of peripherals (ADC, timers, UART, SPI, I2C, PWM, I/O). The PIC24H family extends this concept with a 16-bit modified Harvard core, hardware multiply/divide, a 16-channel DMA controller, and DSP-oriented instructions, making it the precursor to the dsPIC33F family with which it shares pin compatibility. PIC24H sits between 8-bit PIC16/PIC18 and 32-bit PIC32 in the Microchip controller hierarchy, and is best suited to real-time control and signal-conditioning tasks that exceed 8-bit performance but do not require a 32-bit core.
Key features of the PIC24HJ64GP202-I/SO include 64 KB (22K × 24-bit) self-programmable Flash, 8 KB RAM, a 12-bit ADC with up to 10 Msps sampling rate, three 16-bit timers that can be paired for 32-bit operation, two output compare modules, four input capture modules, two UART modules, two SPI interfaces, an I2C module, and 21 general-purpose I/O pins. The 40 MIPS throughput allows high-resolution PWM for motor and power conversion control while leaving headroom for communication stacks.
The device uses a pipelined 16-bit RISC architecture with hardware DSP support (MAC operations) and a flexible peripheral pin-select (PPS) mapper on most members of the family. A 16-channel DMA engine offloads data movement between the ADC, ECAN buffers, and RAM, allowing the CPU to focus on control loops. The industrial temperature grade (-40C to +85C) is indicated by the “-I” suffix in the part number.
Typical applications include digital power conversion (digital PFC, LLC, phase-shifted full-bridge), advanced motor control (BLDC, PMSM, ACIM field-oriented control), industrial sensors and instrumentation, LED lighting controllers, and low-cost DSP front-ends. The wide DMA bandwidth and DSP-friendly instruction set let the PIC24HJ64GP202-I/SO replace discrete DSP+MCU combinations in cost-sensitive designs.
When designing with this part, ensure that the supply sits within 3.0–3.6 V (typical 3.3 V) and that decoupling is placed close to the VDD/VSS pairs. Use MPLAB X IDE with the XC16 compiler for development; programmers/debuggers include PICkit 3, PICkit 4, ICD 3, and MPLAB SNAP. For new designs targeting the same SOIC-28 footprint, evaluate the migration options listed in the Alternatives section before committing.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24HJ64GP202-I/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 PIC24HJ64GP202-I/SO (same form factor and footprint) — differing in Operating Temperature, Package, Timers, Program Memory (Flash), ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24HJ64GP202T-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ64GP202-I/MM
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →PIC24HJ64GP202-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
dsPIC33FJ64GP202-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ64GA002-I/SO
✅ Drop-In✓ In Stock
$3.78 / Unit
View Datasheet →PIC24HJ64GP202-I/SO Maximum Ratings & Electrical Characteristics
| Core | PIC24H 16-bit RISC |
| Maximum CPU Speed | 40 MIPS at 40 MHz |
| Program Flash Memory | 64 KB (22K x 24-bit) |
| Data RAM | 8 KB |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (industrial, "-I") |
| I/O Pins | 21 |
| ADC | 10-bit / 12-bit, 1 Msps class |
| Timers | Three 16-bit (pairable as 32-bit) |
| Output Compare / PWM | 2 modules |
| Input Capture | 4 modules |
| UART | 2 modules |
| SPI | 2 modules |
| I2C | 1 module |
| DMA Channels | 8-channel DMA |
| Package | 28-pin SOIC (R-PDSO-G28), 1.27 mm pitch |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC24HJ64GP202-I/SO Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | RA0 — PORTA bit 0 / analog input |
| Pin 3 | RA1 — PORTA bit 1 / analog input |
| Pin 4 | RA2 — PORTA bit 2 / analog input |
| Pin 5 | RA3 — PORTA bit 3 / analog input |
| Pin 6 | RA4 — PORTA bit 4 / analog input |
| Pin 7 | AVDD — Analog supply voltage |
| Pin 8 | AVSS — Analog ground |
| Pin 9 | OSC1 — Crystal oscillator input / external clock |
| Pin 10 | OSC2 — Crystal oscillator output |
| Pin 11 | RB0 — PORTB bit 0 |
| Pin 12 | RB1 — PORTB bit 1 |
| Pin 13 | RB2 — PORTB bit 2 |
| Pin 14 | RB3 — PORTB bit 3 |
| Pin 15 | RB4 — PORTB bit 4 |
| Pin 16 | RB5 — PORTB bit 5 |
| Pin 17 | RB6 — PORTB bit 6 / programming clock (PGC) |
| Pin 18 | RB7 — PORTB bit 7 / programming data (PGD) |
| Pin 19 | VSS — Digital ground |
| Pin 20 | VDD — Digital supply voltage (3.0–3.6 V) |
| Pin 21 | RC0 — PORTC bit 0 |
| Pin 22 | RC1 — PORTC bit 1 |
| Pin 23 | RC2 — PORTC bit 2 |
| Pin 24 | RC3 — PORTC bit 3 |
| Pin 25 | RC4 — PORTC bit 4 |
| Pin 26 | RC5 — PORTC bit 5 |
| Pin 27 | RC6 — PORTC bit 6 |
| Pin 28 | RC7 — PORTC bit 7 |
Typical Applications
PIC24HJ64GP202-I/SO is suitable for 6 applications: Digital Power Conversion (PFC / LLC / Phase-Shifted Full-Bridge), BLDC / PMSM / ACIM Field-Oriented Motor Control, Industrial Sensor Conditioning and 4–20 mA Transmitters, LED Lighting Drivers and Color-Mixing Controllers, Low-Cost DSP Front-End (Audio / Sensor Pre-Processing), Industrial Connectivity Bridges (UART-to-SPI, SPI-to-UART, UART-to-CAN).
Digital Power Conversion (PFC / LLC / Phase-Shifted Full-Bridge)
The PIC24HJ64GP202-I/SO is well suited for digital PFC and DC-DC power-conversion control loops: its 40 MIPS PIC24H core executes current-mode control and valley/peak detection at 50–250 kHz switching frequencies with margin to spare for housekeeping. The 12-bit ADC samples the inductor current and input voltage simultaneously, and the 8-channel DMA engine streams ADC results to RAM without CPU intervention, allowing deterministic loop timing in tight VOUT-load-transient events. Compared with an 8-bit PIC18, the 16-bit MAC unit lets the firmware implement digital compensation (PID, type-II/type-III) with higher resolution. The 28-SOIC package fits standard power-supply daughter-card footprints and tolerates industrial 3.3 V rails from auxiliary fly-back windings. Designers migrating to digital power can reuse code from existing dsPIC33F reference designs because the PIC24HJ64GP2xx shares the same peripheral library.
Recommended
BLDC / PMSM / ACIM Field-Oriented Motor Control
For sensorless or encoder-based BLDC, PMSM and ACIM drives in the 24 V / 48 V class, the PIC24HJ64GP202-I/SO delivers enough compute for a 10–20 kHz FOC loop while leaving time for speed/torque PI controllers and serial diagnostics. Its three 16-bit timers pair up as a single 32-bit timer for PWM duty/period, the 2 output-compare modules generate complementary 3-phase PWMs with programmable dead-time, and the 12-bit ADC digitizes phase currents via integrated PGAs on related family members. The 8-channel DMA keeps ADC-to-RAM transfers non-blocking, which is critical when running a 4 kHz control loop without jitter. The 28-SOIC footprint matches popular 24 V small-drive boards, and the -40C to +85C industrial grade covers automotive-auxiliary and white-goods motor applications. For higher-performance FOC, migrate to the dsPIC33FJ64GP202-I/SO which is pin-compatible and adds DSP hardware.
Recommended
Industrial Sensor Conditioning and 4–20 mA Transmitters
Industrial 4–20 mA smart transmitters benefit from the PIC24HJ64GP202-I/SO's integrated 12-bit ADC for bridge/strain-gauge sensor readings, UART/SPI/I2C peripherals for HART or IO-Link modem interfaces, and 64 KB Flash for sensor linearization tables. The 40 MIPS throughput runs background diagnostics while maintaining a 1 ms loop time, which is more than enough for slow industrial sensors (pressure, flow, level, temperature). Operating from a 3.3 V rail regulated from a loop-powered LDO, the part's 28-SOIC footprint simplifies PCB layout for intrinsic-safety spacing. Industrial temperature grade (-40C to +85C) is appropriate for process-control cabinets. Compared with a 32-bit ARM M0, the PIC24HJ64GP202-I/SO offers a smaller code footprint per feature and a simpler MPLAB X toolchain for IEC 61508 firmware qualification.
Recommended
LED Lighting Drivers and Color-Mixing Controllers
High-end architectural and horticulture LED drivers use the PIC24HJ64GP202-I/SO for closed-loop current control across multiple channels (RGB, RGBA, white + red/blue/IR). Each PWM channel is driven by an output-compare module running at 1–20 kHz with 16-bit duty resolution, giving 16 million steps - enough for smooth dimming curves and analog-mimicking 0–100% brightness without flicker. The 40 MIPS core handles CIE color-mixing math and DMX-512 / DALI / 0–10 V protocol stacks simultaneously. 64 KB Flash fits DALI-2 lighting library and bootloader for OTA updates via UART. The 28-SOIC package is comfortable on commercial-fixture PCBs at up to 4 W dissipation without additional heatsinking. For wireless dimming add a UART-connected Bluetooth LE module controlled by the MCU.
Recommended
Low-Cost DSP Front-End (Audio / Sensor Pre-Processing)
Pre- and post-processing for low-cost audio and vibration monitoring applications fits comfortably in the PIC24HJ64GP202-I/SO. The 40 MIPS performance executes 16-bit FIR and biquad IIR filters at 8–16 kHz sample rate for noise cancellation, anti-aliasing and tone detection. The 12-bit ADC captures microphone or vibration transducer outputs, and the 8-channel DMA offloads samples to RAM, leaving the CPU for spectral analysis (Goertzel, FFT). UART/SPI interfaces push results to a higher-tier processor or a Bluetooth LE module. The 28-SOIC footprint is comfortable on portable audio PCB layouts and the industrial temperature grade suits outdoor installations. For DSP-intensive algorithms consider the dsPIC33FJ64GP202-I/SO (pin-compatible DSP-enhanced variant).
Recommended
Industrial Connectivity Bridges (UART-to-SPI, SPI-to-UART, UART-to-CAN)
The PIC24HJ64GP202-I/SO serves as an inexpensive, in-system protocol converter for industrial cabinets - bridging legacy RS-232/485 UARTs to SPI peripherals, or routing CAN traffic between bus segments. Its 2 UART, 2 SPI and 1 I2C peripherals allow up to five simultaneous links, and 8 KB RAM holds modest message-queue buffers. The DMA engine keeps high-speed SPI peripherals fed without CPU intervention, freeing compute for protocol translation. Programming it as a converter is straightforward under MPLAB X with the Microchip application note AN1078 UART examples. The 28-SOIC package and 3.3 V operation fit standard industrial DIN-rail gateway PCBs. For higher throughput bridges consider PIC24FJ64GA002-I/SO (pin-compatible lower-speed part) or dsPIC33FJ64GP202-I/SO.
Recommended
Recommended Products Summary
Engineering reference data for PIC24HJ64GP202-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24HJ64GP202T-I/SO | PIC24HJ64GP202-I/MM | PIC24HJ64GP202-E/SO | dsPIC33FJ64GP202-I/SO | PIC24FJ64GA002-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC (same) | 28-QFN (layout change) | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) |
| Core | PIC24H 16-bit RISC | PIC24H 16-bit RISC | PIC24H 16-bit RISC | PIC24H 16-bit RISC | dsPIC33F 16-bit DSP | PIC24F 16-bit RISC |
| Maximum CPU Speed | 40 MIPS at 40 MHz | 40 MIPS at 40 MHz | 40 MIPS at 40 MHz | 40 MIPS at 40 MHz | 40 MIPS at 40 MHz + DSP | 16 MIPS at 32 MHz |
| Program Flash | 64 KB (22K x 24) | 64 KB (22K x 24) | 64 KB (22K x 24) | 64 KB (22K x 24) | 64 KB (22K x 24) | 64 KB (22K x 24) |
| Data RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C |
| DSP Engine | No (PIC24H core only) | No | No | No | Yes (MAC, barrel shifter) | No |
Key Differentiators
- Exact silicon, multi-package sibling offering direct migration path (vs PIC24HJ64GP202-I/MM (28-QFN))
- Industrial temperature grade at standard SOIC-28 pricing (vs PIC24HJ64GP202-E/SO (extended temperature))
- 40 MIPS throughput without DSP overhead (vs dsPIC33FJ64GP202-I/SO)
- 40 MIPS vs 16 MIPS upgrade path on the same SOIC-28 footprint (vs PIC24FJ64GA002-I/SO)
Design Notes
The PIC24HJ64GP202-I/SO requires a regulated 3.0–3.6 V supply; typical designs use 3.3 V from an LDO such as MCP1700-3302E or a DC-DC buck. Place a 100 nF decoupling cap on each VDD/VSS pair and a single 10 uF bulk capacitor within 25 mm of the MCU. If the design also powers analog blocks (ADC), connect AVSS to VSS with a short, wide trace and add a ferrite bead between VDD and AVDD to keep ADC noise below 1 LSB.
For 28-SOIC footprints, dedicate a continuous ground plane on the top or second layer and keep high-speed traces (OSC1/OSC2, PWM, ADC) above unbroken ground. Keep the 40 MHz crystal traces short (<5 mm), symmetric, and surrounded by a ground guard ring. Do not route PWM or switching signals across the ADC inputs; route ADC traces perpendicular to digital traces to minimize crosstalk. Per the family datasheet, the SOIC-28 thermal pad is not electrically connected - internal improvements only.
Three common pitfalls when bringing up the PIC24HJ64GP202-I/SO: (1) leaving the MCLR pin floating - tie it to VDD through a 10 kohm pull-up and add a 100 nF cap to ground for noise immunity; (2) choosing the wrong oscillator configuration in the configuration bits - the part defaults to internal FRC at 7.37 MHz, not 40 MHz, until you configure PLL and OSCCON; (3) forgetting to set the JTAG enable fuse - debug pins (RB6/RB7) are shared with PORTB and must be released for normal GPIO use.
At full 40 MIPS throughput with all peripherals active, the PIC24HJ64GP202-I/SO dissipates roughly 60–80 mW in a 28-SOIC (estimated: IDD ~25 mA, VDD 3.3 V). The SOIC-28 thermal resistance theta_JA is approximately 80 C/W on a 2-layer JEDEC EIA/JESD51 test board, so the junction rises about 5–6 C above ambient - well within the -40C to +85C rating without explicit cooling. For closed enclosures, leave a small copper pour under the package to spread heat.
Compliance Information
RoHS compliant per Microchip product page. Lead-free (Pb-free) SOIC-28 package with NiPdAu plating supports 260C peak reflow per JEDEC J-STD-020. Industrial temperature grade -40C to +85C only; for extended-grade use PIC24HJ64GP202-E/SO (-40C to +125C).
