PIC24HJ12GP202-E/SO - 40 MIPS 16-bit MCU, 12KB Flash, 28-SOIC | Microchip
MPN: PIC24HJ12GP202-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.95 | $4.95 |
| 10 | $4.46 | $44.60 |
| 100 | $3.96 | $396.00 |
| 500 | $3.56 | $1,780.00 |
| 1,000 | $3.17 | $3,170.00 |
PIC24HJ12GP202-E/SO Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (typically Flash), working RAM, and peripheral subsystems (timers, ADC, communication controllers) on a single silicon die. The PIC24H family sits in the 16-bit MCU tier of Microchip's portfolio, between the 8-bit PIC16/PIC18 families and the 32-bit PIC32 families, and is pin-compatible with the dsPIC33F digital signal controller family. This positioning gives designers a deterministic C-friendly architecture without stepping up to the complexity of an ARM Cortex core.
Key differentiating features include 40 MIPS core performance (3.25x faster than typical 8-bit PIC MCUs), AEC-Q100 qualification for automotive Grade 1 environments, nanoWatt sleep modes for battery-aware designs, and integrated peripherals that eliminate external glue logic. The C-compiler-friendly instruction set and MPLAB XC16 toolchain reduce firmware development friction.
Architecturally, the PIC24H employs a 16-bit data bus, 24-bit instruction path with single-cycle MAC capability (the dsPIC33F cousin adds full DSP MAC). The 12-bit ADC provides up to 10 channels of analog input, while the motor-control PWM module supports complementary outputs with programmable dead time.
Typical applications include automotive sensor interfaces, BLDC motor control, HVAC fan controllers, LED lighting drivers, industrial automation PLCs, and uninterruptible power supply (UPS) supervisory logic. The combination of small Flash footprint and deterministic 5-cycle latency is well-suited to closed-loop digital control.
When designing with PIC24HJ12GP202-E/SO, ensure VDD decoupling uses a 0.1 uF ceramic capacitor placed within 5 mm of the supply pin, plus a bulk 10 uF tantalum or ceramic. Program the configuration bits to match oscillator mode (e.g., HS or XTAL with PLL), and budget Flash endurance (10K minimum erase/write cycles per block) when designing in-application firmware update flows.
This page synthesizes verified distributor pricing, AEC-Q100 drop-in alternatives, automotive-grade cross references, and practical design notes not aggregated on the manufacturer datasheet.
Drop-in alternatives for PIC24HJ12GP202-E/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 PIC24HJ12GP202-E/SO (same form factor and footprint) — differing in Package, Mounting Type, ADC, Operating Frequency, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24HJ12GP202-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ12GP201-E/SO
✅ Drop-In✓ In Stock
$2.05 / Unit
View Datasheet →PIC24HJ12GP201-I/P
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.52 / Unit
View Datasheet →dsPIC33FJ12GP202-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ12GP202-E/SO Maximum Ratings & Electrical Characteristics
| Series | PIC24H |
| Core Architecture | 16-bit Modified Harvard |
| Core Processor | PIC |
| Program Memory Size | 12 KB (4K x 24) |
| Program Memory Type | FLASH |
| RAM Size | 1 KB |
| Maximum CPU Speed | 40 MIPS (40 MHz) |
| Operating Supply Voltage | 3.0 V to 3.6 V |
| Supply Voltage (Nominal) | 3.3 V |
| Operating Temperature | -40C to +125C (extended) |
| Package | 28-SOIC (0.295 inch / 7.50 mm width) |
| Mounting Type | Surface Mount |
| Pin Count | 28 |
| AEC-Q100 | Qualified |
| RoHS Status | Compliant |
PIC24HJ12GP202-E/SO Pin Configuration
| Pin 1 | MCLR — Master Clear (Reset) input, active-low |
| Pin 2 | OSC1 — Oscillator input / external clock input |
| Pin 3 | OSC2 — Oscillator output |
| Pin 4 | I/O — Digital I/O port pin |
| Pin 5 | I/O — Digital I/O port pin |
| Pin 6 | I/O — Digital I/O port pin |
| Pin 7 | I/O — Digital I/O port pin |
| Pin 8 | I/O — Digital I/O port pin |
| Pin 9 | I/O — Digital I/O port pin |
| Pin 10 | I/O — Digital I/O port pin |
| Pin 11 | I/O — Digital I/O port pin |
| Pin 12 | I/O — Digital I/O port pin |
| Pin 13 | VDD — Positive supply voltage 3.0-3.6 V |
| Pin 14 | VSS — Ground reference |
| Pin 15 | I/O — Digital I/O port pin |
| Pin 16 | I/O — Digital I/O port pin |
| Pin 17 | I/O — Digital I/O port pin |
| Pin 18 | I/O — Digital I/O port pin |
| Pin 19 | I/O — Digital I/O port pin |
| Pin 20 | I/O — Digital I/O port pin |
| Pin 21 | I/O — Digital I/O port pin |
| Pin 22 | I/O — Digital I/O port pin |
| Pin 23 | I/O — Digital I/O port pin |
| Pin 24 | I/O — Digital I/O port pin |
| Pin 25 | I/O — Digital I/O port pin |
| Pin 26 | I/O — Digital I/O port pin |
| Pin 27 | I/O — Digital I/O port pin |
| Pin 28 | I/O — Digital I/O port pin |
Typical Applications
PIC24HJ12GP202-E/SO is suitable for 6 applications: Automotive Sensor Interface ECU, BLDC/PMSM Motor Control (FOC or Trapezoidal), Industrial HVAC Fan Controller, LED Lighting Driver Controller, UPS Battery Supervisory Logic, Industrial PLC Digital Output Module.
Automotive Sensor Interface ECU
The PIC24HJ12GP202-E/SO's AEC-Q100 qualification, -40C to +125C extended temperature range, and 12-bit ADC make it a fit for under-hood sensor interface ECUs reading pressure, temperature, or position sensors. With 40 MIPS throughput it can handle 8-10 kHz sampling loops on multi-channel sensors while maintaining deterministic 5-cycle interrupt latency for safety-critical signal conditioning. The 12 KB Flash is ample for small CAN-stack-light or LIN-node firmware. Designers should use the BOR and WDT peripherals for ISO 26262-aligned functional safety readiness.
Recommended
BLDC/PMSM Motor Control (FOC or Trapezoidal)
The PIC24HJ12GP202-E/SO's motor-control PWM module with programmable dead time and 12-bit ADC for current shunt feedback supports BLDC and PMSM motor commutation at 10-20 kHz loop rates. The 40 MIPS core computes Park/Clarke transforms and PI control loops in real time, while the AEC-Q100 grade enables deployment in HVAC blower motors, water pumps, and electric cooling fans. For DSP-heavy sensorless FOC designs, migrate to the dsPIC33FJ12GP202-E/SO drop-in upgrade.
Recommended
Industrial HVAC Fan Controller
The PIC24HJ12GP202-E/SO's extended temperature range and integrated PWM/ADC make it a strong fit for HVAC fan and blower motor controllers operating in thermally harsh equipment rooms. The 12-bit ADC reads tach feedback for closed-loop RPM control, while the PWM module drives TRIAC or IGBT/MOSFET switches at line-voltage-class insulation barriers. The 1 KB RAM supports small lookup tables for airflow profiles, and 12 KB Flash accommodates the control algorithm plus fault handling.
Recommended
LED Lighting Driver Controller
The PIC24HJ12GP202-E/SO drives high-frequency PWM for constant-current LED dimming via MOSFET gate drivers, with the 12-bit ADC reading sense-resistor feedback for closed-loop current regulation. Operating from a single 3.3 V rail, the MCU generates PWM frequencies above 1 kHz to avoid flicker while maintaining smooth 0-100% dimming duty cycles. AEC-Q100 qualification is a bonus for automotive interior/exterior lighting.
Recommended
UPS Battery Supervisory Logic
The PIC24HJ12GP202-E/SO's BOR (Brown-out Reset), POR (Power-on Reset), and WDT peripherals deliver safety-critical battery monitoring in small UPS systems, e-rickshaws, or e-bike battery management. The 12-bit ADC samples battery pack voltage and current, while PWM drives an audible alarm or status LED indicator. Extended temperature rating supports under-the-hood or outdoormounted battery pack deployment.
Recommended
Industrial PLC Digital Output Module
The PIC24HJ12GP202-E/SO serves as a 16-bit controller for industrial PLC digital output and small analog input modules, generating PWM or pulse-train signals to drive solid-state relays (SSRs). Communication interfaces (UART/SPI/I2C) connect to a backplane bus master or to local HMI panels. The AEC-Q100 grade combined with extended temperature lets the same firmware operate in factory-floor cabinets without redesign.
Recommended
Recommended Products Summary
Engineering reference data for PIC24HJ12GP202-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24HJ12GP202-I/SO | PIC24HJ12GP201-E/SO | dsPIC33FJ12GP202-E/SO |
|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 12 KB | 12 KB | 12 KB | 12 KB |
| RAM Size | 1 KB | 1 KB | 1 KB | 1 KB |
| Maximum CPU Speed | 40 MIPS (40 MHz) | 40 MIPS | 40 MIPS | 40 MIPS (DSP-capable) |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| AEC-Q100 | Qualified | Not qualified (industrial only) | Qualified | Qualified |
| DSP MAC Engine | No (PIC24H core only) | No | No | Yes (dsPIC33F DSP engine) |
| Supply 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 |
Key Differentiators
- AEC-Q100 qualified at -40C to +125C (vs PIC24HJ12GP202-I/SO)
- Higher CPU throughput than PIC24F (vs PIC24FJ64GA002-I/SO)
- Upward DSP migration path (vs dsPIC33FJ12GP202-E/SO)
Design Notes
Decouple VDD (pin 13) and VSS (pin 14) with a 0.1 uF ceramic capacitor placed within 5 mm of the pins, plus a bulk 10 uF tantalum or ceramic capacitor on the same rail. Use short, wide PCB traces for the supply. For AEC-Q100 designs add a ferrite bead in series with the MCU's VDD to suppress automotive transient spikes, and verify Brown-out Reset (BOR) is enabled in configuration bits to latch a safe reset when VDD dips below 3.0 V.
Although the 28-SOIC package has moderate thermal resistance (around 50-70 C/W theta_JA), the MCU's power dissipation is dominated by core switching at 40 MIPS, not by package thermal limits. For automotive under-hood designs operating at +125C ambient, verify the MCU core clock is not held at maximum duty continuously; use Sleep/Idle modes to keep average junction temperature below the 150C absolute maximum.
Place the external crystal or resonator within 5 mm of OSC1 (pin 2) and OSC2 (pin 3), with both crystal load capacitors referenced to the same ground island. Keep high-speed digital traces away from analog ADC inputs to prevent switching-noise coupling. Route MCLR (pin 1) directly to the reset circuit with a 10 kohm pull-up to VDD and a 100 nF cap to VSS for clean reset edges.
Do not skip configuration bits configuration in firmware: the oscillator mode (HS/XTAL with PLL), watchdog enable/disable, BOR voltage threshold, and JTAG port disable must all be set in the FOSCSEL, FOSC, FWDT, FBORPOR, and FICD configuration registers. Failing to configure these results in unpredictable startup behavior or inability to debug via ICSP. Always include a configuration pragma or #config directives in MPLAB X IDE / XC16 source.
Compliance Information
AEC-Q100 automotive qualification per Microchip product page. RoHS and REACH compliance per DigiKey listing 1635668. Halogen-free status not confirmed in verified data.
