PIC24HJ32GP304-I/PT - 16-bit 40MHz 32KB Flash MCU | Microchip
MPN: PIC24HJ32GP304-I/PT ✓ פעילPIC24HJ32GP304-I/PT סקירה
A 16-bit microcontroller is a single-chip computer that processes data 16 bits at a time, sitting in the hierarchy between 8-bit MCUs and 32-bit ARM-class cores. The PIC24H architecture is a 16-bit modified Harvard RISC design with a 16-bit data path and 24-bit instruction word, optimized for deterministic real-time control. Within the broader taxonomy, PIC24H belongs to the 16-bit MCU tier of the microcontroller semiconductor category.
Key features include hardware DMA that offloads data movement from the CPU, a 12-bit ADC with 500 ksps throughput, dual analog comparators, and a charge time measurement unit (CTMU) for capacitive touch or accurate timing. Communication peripherals cover UART, SPI, I2C, and ECAN, providing flexibility for both sensor interfaces and industrial fieldbus integration. The CTMU and DMA pair especially well for low-jitter sensor sampling.
Typical applications include industrial automation, motor control (BLDC, PMSM, and stepper), intelligent sensor systems, building automation HVAC controllers, and digital power conversion control loops. The wide peripheral set and DMA engine allow the CPU to focus on control-loop math rather than data shuffling.
When designing with the PIC24HJ32GP304-I/PT, ensure that the 3.3 V rail is well-regulated and that decoupling capacitors sit close to the VDD/VSS pairs. Use the ECAN module for CAN-bus nodes, the CTMU for capacitive touch sensing, and the DMA controller for high-throughput ADC-to-memory transfers.
This page synthesizes distributor pricing, verified drop-in alternatives, and practical design guidance not found in the manufacturer datasheet, providing a compact, citation-ready reference for engineering selection.
חלופות תחליף ישיר עבור PIC24HJ32GP304-I/PT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC24HJ32GP304-I/PT (אותו גורם צורה וטביעת רגל) — שונים ב Timers, Package, ADC, Program Memory (Flash), Core.
PIC24HJ32GP304T-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24HJ32GP304-I/ML
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24HJ128GP504-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24HJ128GP504T-I/PT
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24HJ256GP206AT-I/PT
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24HJ32GP304-I/PT דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | 16-bit PIC24H (modified Harvard RISC) |
| Program Memory (Flash) | 32 KB (11K x 24) |
| Data Memory (RAM) | 4 KB |
| Maximum CPU Speed | 40 MIPS at 40 MHz |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| טמפרטורת פעולה | -40 C to +85 C (Industrial) |
| מארז | 44-pin TQFP (10x10 mm) |
| סוג הרכבה | Surface Mount |
| Digital I/O Pins | 21 |
| ADC | 12-bit, up to 16 channels, 500 ksps |
| Timers | Three 16-bit (pairable to one 32-bit) |
| Output Compare Modules | 2 |
| DMA Channels | 8 |
| Communication Peripherals | UART, SPI, I2C, ECAN |
| Analog Comparators | 2 |
| CTMU | Yes (Charge Time Measurement Unit) |
| סטטוס RoHS | Compliant |
| רמת MSL | 3 (168 hours) |
תצורת פינים של PIC24HJ32GP304-I/PT
| פין 1 | RP15/CN15V15/PMD15 — Remappable I/O / Change Notification / Enhanced PWM |
| פין 2 | RP14/CN14V14/PMD14 — Remappable I/O / Change Notification / Enhanced PWM |
| פין 3 | RP13/PA15 — Remappable I/O / Port A |
| פין 4 | RP12/PA14 — Remappable I/O / Port A |
| פין 5 | RP11/PA13 — Remappable I/O / Port A |
| פין 6 | RP10/PA12 — Remappable I/O / Port A |
| פין 7 | MCLR — Master Clear (reset, active-low) |
| פין 8 | RP9/PA11 — Remappable I/O / Port A |
| פין 9 | RP8/PA10 — Remappable I/O / Port A |
| פין 10 | VSS — Ground reference |
| פין 11 | VDD — Positive supply (3.3V) |
| פין 12 | RP7/OC5V3 — Remappable I/O / Output Compare 5 |
| פין 13 | RP6/OC4V4 — Remappable I/O / Output Compare 4 |
| פין 14 | RP5/PA9 — Remappable I/O / Port A |
| פין 15 | RP4/PA8 — Remappable I/O / Port A |
| פין 16 | RP3/PA7 — Remappable I/O / Port A |
| פין 17 | RP2/PA6 — Remappable I/O / Port A |
| פין 18 | RP1/OC3V3/INT3 — Remappable I/O / Output Compare 3 / External Interrupt 3 |
| פין 19 | RP0/OC2V2/INT2 — Remappable I/O / Output Compare 2 / External Interrupt 2 |
| פין 20 | AN0/VREF+/PGA1 — Analog input 0 / ADC VREF+ / PGA positive |
| פין 21 | AN1/VREF-/PGA1 — Analog input 1 / ADC VREF- / PGA negative |
| פין 22 | AN2/PGAC1 — Analog input 2 / PGA compensation |
| פין 23 | AN3 — Analog input 3 |
| פין 24 | AN4 — Analog input 4 |
| פין 25 | AN5 — Analog input 5 |
| פין 26 | AN6 — Analog input 6 |
| פין 27 | VSS — Ground reference |
| פין 28 | VDD — Positive supply (3.3V) |
| פין 29 | AN7 — Analog input 7 |
| פין 30 | AN8 — Analog input 8 |
| פין 31 | AN9 — Analog input 9 |
| פין 32 | AN10/CVREF — Analog input 10 / Comparator Voltage Reference |
| פין 33 | AN11 — Analog input 11 |
| פין 34 | AN12 — Analog input 12 |
| פין 35 | AN13 — Analog input 13 |
| פין 36 | AN14 — Analog input 14 |
| פין 37 | AN15 — Analog input 15 |
| פין 38 | RP16/OC8V8 — Remappable I/O / Output Compare 8 |
| פין 39 | OSCI/CLKI — Oscillator crystal input / external clock in |
| פין 40 | OSCO/CLKO — Oscillator crystal output / system clock out |
| פין 41 | RP17/OC9V9 — Remappable I/O / Output Compare 9 |
| פין 42 | PGD/EMUD — Programming data / ICD EMU data |
| פין 43 | PGC/EMUC — Programming clock / ICD EMU clock |
| פין 44 | AVSS — Analog ground reference |
יישומים טיפוסיים
PIC24HJ32GP304-I/PT מתאים עבור 7 יישוםs: Industrial Motor Control, Digital Power Conversion Control, Capacitive Touch Sensing, Industrial Sensor Hubs, Building Automation HVAC, Automotive Body Electronics, Uninterruptible Power Supply Controller.
Industrial Motor Control
The PIC24HJ32GP304-I/PT's 40 MIPS throughput and three 16-bit timers (pairable to one 32-bit) make it well-suited for sensorless BLDC and PMSM motor control loops. The Output Compare modules drive PWM signals up to 40 kHz at center-aligned mode with dead-band control, while the 12-bit ADC at 500 ksps samples phase currents with low latency. The 8-channel DMA engine transfers ADC samples to RAM without CPU intervention, freeing the core to run field-oriented control math. Per the PIC24H datasheet, the CTMU can be used for BEMF zero-cross detection on low-cost sensorless drives.
מומלץ
Digital Power Conversion Control
The 40 MIPS performance and 12-bit ADC make the PIC24HJ32GP304-I/PT a cost-effective controller for digital PFC, full-bridge, and LLC resonant converters. The Output Compare modules generate high-resolution PWM at up to 1 ns edge placement in PWM mode, enabling tight control of duty cycle for power factor correction. The DMA channels stream ADC results into circular buffers while the CPU executes the voltage-mode or current-mode control law. The 32 KB Flash is sufficient for state-space and adaptive digital control algorithms in sub-kW converters.
מומלץ
Capacitive Touch Sensing
The PIC24HJ32GP304-I/PT integrates the Charge Time Measurement Unit (CTMU), which provides a constant-current source and timing measurement for capacitive touch buttons, sliders, and proximity sensors. Combined with the 12-bit ADC and DMA, the MCU can scan 8-16 touch channels at high update rates while running touch classification algorithms in firmware. The 4 KB RAM is sufficient for gesture state machines and debounce buffers. The 21 I/O pins allow the GPIO to drive LED feedback and mechanical button override alongside the touch electrodes.
מומלץ
Industrial Sensor Hubs
The combination of UART, SPI, I2C, and ECAN peripherals makes the PIC24HJ32GP304-I/PT an effective industrial sensor hub that aggregates data from SPI sensors and forwards it over CAN to a master controller. The DMA engine handles burst transfers from sensor FIFOs without CPU load, while the 12-bit ADC monitors analog process variables such as temperature or pressure. The 32 KB Flash supports MODBUS or CANopen protocol stacks. The 44-TQFP package provides ample I/O for multiple sensor interfaces plus a debugging UART.
מומלץ
Building Automation HVAC
The PIC24HJ32GP304-I/PT's mix of analog and digital peripherals suits it for HVAC damper and valve controllers, fan-speed regulators, and building-automation node endpoints. The 12-bit ADC reads temperature, humidity, and pressure sensor outputs, while the PWM modules drive TRIAC optocouplers for AC load switching. ECAN support allows the node to integrate into BACnet or CANopen building-automation trunks. The 32 KB Flash accommodates control-loop firmware plus scheduling logic for setpoint management.
מומלץ
Automotive Body Electronics
Although the I-grade variant is industrial-temperature rated (-40 C to +85 C), the PIC24HJ32GP304-I/PT architecture and ECAN peripheral make it a fit for non-safety automotive body modules such as lighting controllers, mirror adjusters, and accessory multiplexers. The 12-bit ADC reads switch contact inputs and Hall-effect sensors, while the PWM outputs drive LED current sinks. CAN connectivity integrates the module into the vehicle body network. For AEC-Q100 qualified equivalents, see the PIC24HJ32GP304-E/PT or Q-Grade parts from Microchip.
מומלץ
Uninterruptible Power Supply Controller
The PIC24HJ32GP304-I/PT's 12-bit ADC at 500 ksps and 40 MIPS performance enable real-time monitoring of battery voltage, load current, and inverter output in small UPS systems. The Output Compare modules generate 50/60 Hz PWM for the inverter stage, while the DMA controller streams ADC samples into the control loop buffer. ECAN or UART can report telemetry to a host processor or display panel. The 32 KB Flash holds inverter control firmware plus state-of-charge estimation logic for lead-acid or Li-ion battery packs.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC24HJ32GP304-I/PT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC24HJ32GP304T-I/PT | PIC24HJ32GP304-I/ML | PIC24HJ128GP504-I/PT | PIC24HJ128GP504T-I/PT | PIC24HJ256GP206AT-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-44 (10x10 mm) | TQFP-44 (10x10 mm) - same | QFN-44 - same silicon, different footprint | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC24H 16-bit | PIC24H 16-bit | PIC24H 16-bit | PIC24H 16-bit | PIC24H 16-bit | PIC24H 16-bit |
| Flash Memory | 32 KB | 32 KB | 32 KB | 128 KB | 128 KB | 256 KB |
| RAM | 4 KB | 4 KB | 4 KB | 8 KB | 8 KB | 16 KB |
| Max CPU Speed | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz |
| 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 | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
מבדילים עיקריים
- Same-family 32 KB Flash variant in TQFP-44 (לעומתPIC24HJ32GP304T-I/PT)
- Direct upgrade path to 128 KB Flash same package (לעומתPIC24HJ128GP504-I/PT)
- ECAN peripheral for industrial networking (לעומתPIC24HJ32GP202-I/SP)
- 8-channel DMA controller for offloaded transfers (לעומתPIC24FJ64GA002-I/SO)
הערות תכנון
Place a 0.1 uF decoupling capacitor within 3 mm of each VDD pin (pins 11 and 28) and a bulk 4.7 uF or 10 uF tantalum/ceramic on the 3.3 V rail. The PIC24HJ32GP304-I/PT can source inrush current of up to ~50 mA during ADC sampling bursts, so the supply must respond quickly. Use an LDO with at least 200 mA headroom and PSRR above 50 dB at 1 MHz to avoid ADC reference noise. Add a 10 uF bulk on AVSS-grounded analog supply if used.
Configure unused pins as digital outputs (not inputs) to avoid floating-pin shoot-through current. Ensure the MCLR pin (pin 7) has a 10 kohm pull-up to VDD, with a 100 nF cap to ground for EMI filtering. Per the datasheet, programming pins PGD/PGC (pins 42/43) must not be used as outputs during reset or the ICD may not be able to communicate. JTAG/ICD connector isolation is required if the board operates near noisy switching nodes.
Route analog traces (AN0-AN15) away from switching PWM traces and use a ground plane with a single point AVSS connection. The VREF+/VREF- pins require a clean 3.0 V reference; an external low-noise reference such as MCP1501-20 may improve ADC accuracy at 12-bit level. Place a 0.1 uF and 10 uF cap pair on VREF+ to filter ADC reference noise. Shield the analog input traces with guard rings tied to AVSS if high-impedance sources are used.
The TQFP-44 package has a thermal resistance theta_JA of approximately 50 C/W in still air. At 40 MHz and 3.3 V the active current is ~50 mA, dissipating ~165 mW; thermal rise is ~8 C above ambient, which is well within the 85 C industrial max. Estimated: with VDD=3.3 V, IDD_ACTIVE=50 mA typical per datasheet. Ensure that self-heating plus ambient does not exceed 85 C; no heatsink is required.