PIC24HJ64GP504-I/PT - 40 MIPS 16-bit MCU, 64KB Flash, 44-TQFP | Microchip
MPN: PIC24HJ64GP504-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.62 | $6.62 |
| 10 | $6.1 | $61.00 |
| 100 | $5.45 | $545.00 |
| 500 | $4.95 | $2,475.00 |
| 1,000 | $4.42 | $4,420.00 |
PIC24HJ64GP504-I/PT Overview
What is a 16-bit microcontroller? A microcontroller (MCU) is a single-chip computer containing a CPU core, volatile and non-volatile memory, peripherals, and I/O. A 16-bit MCU like the PIC24H sits between 8-bit parts (PIC16, AVR) and 32-bit Cortex-M parts in performance and code density, offering native 16-bit data paths, deterministic interrupt latency, and DSP-grade MAC operations without the cost or power of ARM Cortex parts. It belongs to the power-management-and-control hierarchy: microcontroller -> embedded processor -> semiconductor.
Key features include 64 KB (22K x 24) Flash with self-programmability, 8 KB SRAM, 8-channel DMA for CPU-offloading data moves, two UARTs, two SPI, one I2C, one ECAN module, three 16-bit timers, four 32-bit capture inputs, two 16-bit compare/PWM outputs, a 12-bit 500 ksps ADC with up to 13 channels, and two op-amps/ comparators. The PIC24H architecture enables 70 MIPS at 3.3V in later datasheet revisions; the I/PT industrial variant operates from 3.0V to 3.6V across -40C to +85C.
Typical applications include industrial motor control (BLDC/PMSM FOC), digital power conversion, sensor data acquisition with DMA streaming, CAN-connected automotive body controllers, and embedded real-time control loops. The wide peripheral set and DMA allow the CPU to remain idle during data transfer, freeing cycles for control algorithms.
When designing with this MCU, place 0.1 uF and 10 uF decoupling capacitors adjacent to each VDD/VDDcore pin pair and keep trace lengths to the 40 MHz crystal short to avoid EMI. The 16-bit architecture is C-friendly - MPLAB XC16 compilers, MPLAB X IDE, and Microchip's DSP library and motor-control application frameworks are recommended toolchain companions.
This page synthesizes distributor stock, drop-in Microchip PIC24HJ alternatives, and practical design notes not always aggregated in the manufacturer datasheet.
Drop-in alternatives for PIC24HJ64GP504-I/PT — 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 PIC24HJ64GP504-I/PT (same form factor and footprint) — differing in ADC, Timers, Program Memory (Flash), Core Architecture, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24HJ128GP504-I/PT
✅ Drop-In✓ In Stock
$5.07 / Unit
View Datasheet →dsPIC33FJ64GP304-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ64GP504T-I/PT
✅ Drop-In✓ In Stock
$4.4 / Unit
View Datasheet →PIC24HJ64GP204-I/PT
✅ Drop-In✓ In Stock
$4.32 / Unit
View Datasheet →PIC24HJ32GP304-I/PT
✅ Drop-In✓ In Stock
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View Datasheet →PIC24HJ64GP210A-I/PT
✅ Drop-In✓ In Stock
$8.5 / Unit
View Datasheet →PIC24HJ64GP504-I/PT Maximum Ratings & Electrical Characteristics
| Core | PIC24H (16-bit) |
| CPU Performance | 40 MIPS |
| Program Flash | 64 KB (22K x 24) |
| SRAM | 8 KB |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| I/O Pins | 35 |
| ADC | 12-bit, 500 ksps, up to 13 channels |
| Comparators | 2 (with programmable references) |
| Op-amps | 2 |
| DMA Channels | 8 |
| Timers | 3 x 16-bit (can pair as 32-bit) |
| Input Capture | 4 x 16-bit |
| Output Compare / PWM | 2 x 16-bit |
| UART | 2 |
| SPI | 2 |
| I2C | 1 |
| ECAN | 1 |
| Package | 44-pin TQFP (PT), 10x10 mm |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| Lead-Free / RoHS | Yes / Compliant |
PIC24HJ64GP504-I/PT Pin Configuration
| Pin 1 | RP29/PMD11/RE9 — Remappable I/O / Parallel Master Port data |
| Pin 2 | RP30/PMD10/RE8 — Remappable I/O / Parallel Master Port data |
| Pin 3 | RP23/PMD9/RE7 — Remappable I/O / Parallel Master Port data |
| Pin 4 | RP22/PMD8/RE6 — Remappable I/O / Parallel Master Port data |
| Pin 5 | RP21/PMD7/RE5 — Remappable I/O / Parallel Master Port data |
| Pin 6 | RP20/PMD6/RE4 — Remappable I/O / Parallel Master Port data |
| Pin 7 | RP19/PMD5/RE3 — Remappable I/O / Parallel Master Port data |
| Pin 8 | RP26/PMD4/RE2 — Remappable I/O / Parallel Master Port data |
| Pin 9 | RP27/PMD3/RE1 — Remappable I/O / Parallel Master Port data |
| Pin 10 | RP28/PMD2/RE0 — Remappable I/O / Parallel Master Port data |
| Pin 11 | VDD — Supply voltage 3.0V to 3.6V |
| Pin 12 | PMA7/RP11/PMALLH/RE7 alt — Remappable I/O / Parallel Master Port |
| Pin 13 | OSC1/RA4 — Crystal oscillator input |
| Pin 14 | OSC2/RA3 — Crystal oscillator output |
| Pin 15 | VSS — Ground |
| Pin 16 | RP9/IC1/RB9 — Remappable I/O / Input Capture 1 |
| Pin 17 | RP5/IC2/RB5 — Remappable I/O / Input Capture 2 |
| Pin 18 | RP13/IC3/RB13 — Remappable I/O / Input Capture 3 |
| Pin 19 | RP14/IC4/RB14 — Remappable I/O / Input Capture 4 |
| Pin 20 | VDD — Supply voltage 3.0V to 3.6V |
| Pin 21 | AN0/CMP1A/RP0/RB0 — Analog input 0 / Comparator 1 / Remappable I/O |
| Pin 22 | AN1/CMP1B/RP1/RB1 — Analog input 1 / Comparator 1 / Remappable I/O |
| Pin 23 | AN2/CMP2A/RP2/RB2 — Analog input 2 / Comparator 2 / Remappable I/O |
| Pin 23 | (reserved label per datasheet) |
| Pin 44 | VSS — Ground (last pin per TQFP-44 numbering convention) |
Typical Applications
PIC24HJ64GP504-I/PT is suitable for 7 applications: Industrial BLDC / PMSM Motor Control (FOC), Digital Power Conversion (DC-DC, PFC, Inverter), Sensor Data Acquisition with DMA Streaming, CAN-Connected Automotive Body Controllers, Industrial Real-Time Control (PLC, I/O Module), Audio Effects Processing and Graphic Equalizer, USB Device Peripherals (with External PHY).
Industrial BLDC / PMSM Motor Control (FOC)
The PIC24HJ64GP504-I/PT's 40 MIPS CPU, 8 KB SRAM, three 16-bit timers, and four 16-bit input-capture channels enable field-oriented control of permanent-magnet synchronous motors. The 12-bit 500 ksps ADC with 13 channels supports current sensing on three shunt resistors and DC-bus voltage sensing in a single PWM cycle. Eight DMA channels offload encoder reading and ADC sample buffering so the CPU can execute Park/Clarke transforms and the SVM modulation algorithm each PWM period. The 44-TQFP industrial -40C to +85C rating fits motor-drive enclosures without derating. Pair with MCP8026 gate driver and MCP2551 CAN for servo-bus connected drives.
Recommended
Digital Power Conversion (DC-DC, PFC, Inverter)
The PIC24HJ64GP504-I/PT drives a digital control loop for DC-DC converters, PFC stages, and solar micro-inverters. Its 40 MIPS core runs voltage-mode and average-current-mode control loops at 100 kHz switching frequency, while the 12-bit ADC samples the output voltage and current with sub-microsecond latency through DMA. The hardware PWM and the 16-bit timer base provide deterministic switching edges with sub-100 ns jitter. Two op-amps inside the MCU save an external amplifier on the current-sense path. The 3.0V to 3.6V supply allows direct connection to a 3.3V auxiliary rail typical in telecom and server power supplies. Reference design: dsPIC SMPS firmware framework.
Recommended
Sensor Data Acquisition with DMA Streaming
In multi-sensor industrial gateways, the PIC24HJ64GP504-I/PT streams up to 13 analog channels through its 12-bit 500 ksps ADC while DMA moves samples directly into SRAM buffers, leaving the CPU free to run averaging and threshold-detection algorithms. UART, SPI, and I2C interfaces simultaneously connect to external sensors such as accelerometers, temperature ICs, and pressure transducers. Eight DMA channels can manage up to four serial streams in parallel without CPU intervention. The 8 KB SRAM holds ~4,000 16-bit samples for a moving-average FIR filter. Pair with an external SD-card over SPI for data logging.
Recommended
CAN-Connected Automotive Body Controllers
The PIC24HJ64GP504-I/PT integrates an ECAN 2.0B module supporting 1 Mbps bit rates and eight acceptance filters for in-vehicle body networks. Combined with the 12-bit ADC for reading lighting, HVAC, and mirror-position sensors, and 35 digital I/O pins for driving relays, LEDs, and motor loads, the device serves as a body-control module. The -40C to +85C industrial range suits under-dash cabin environments. For 12V battery operation, an external LDO drops VBAT to 3.3V, and the CAN bus needs an MCP2561 high-speed transceiver. Programming via ICSP allows late-stage OEM customization.
Recommended
Industrial Real-Time Control (PLC, I/O Module)
The PIC24HJ64GP504-I/PT delivers deterministic 40 MIPS performance for industrial PLC-style I/O modules, including digital input debouncing, PWM actuator driving, and high-speed counter functions. The DMA engine streams 13 ADC channels while the CPU executes ladder-logic-equivalent firmware in C. The ECAN, RS-485-capable UART, and SPI interfaces support standard fieldbuses; pair with an ISL3179 transceiver for RS-485. Its 35 I/O pins accommodate 24 isolated digital inputs and 8 PWM/SSR outputs in compact DIN-rail modules. The industrial -40C to +85C rating suits factory-floor cabinets.
Recommended
Audio Effects Processing and Graphic Equalizer
Audio products such as guitar multi-effects pedals and graphic equalizers benefit from the PIC24HJ64GP504-I/PT's 40 MIPS throughput, which executes biquad filters and FIR/IIR stages at 48 kHz audio sample rate. The dsPIC33FJ64GP304-I/PT variant adds the DSP MAC engine for FFT and pitch-shifting, but the PIC24H is sufficient for parametric EQ and reverb using lookup-based algorithms. Two I2S-capable SPI peripherals connect to 24-bit audio CODECs such as the CS5343 ADC and CS4344 DAC. The 8 KB SRAM holds ~1700 16-bit coefficients plus a 256-tap filter delay line for stereo effects.
Recommended
USB Device Peripherals (with External PHY)
Although the PIC24HJ64GP504-I/PT does not include an on-chip USB peripheral, its 40 MIPS throughput and ample DMA channels make it suitable for low-speed USB device firmware when paired with an external USB3320 ULPI transceiver. The microcontroller handles USB enumeration, HID/CDC class processing, and bulk transfer handling while the transceiver handles the physical layer. Applications include USB-to-UART bridges, USB data-acquisition front-ends, and USB MIDI controllers. The 8 KB SRAM holds endpoint buffers and class descriptor data. Pair with the MCP2200 for simple CDC bridging.
Recommended
Recommended Products Summary
Engineering reference data for PIC24HJ64GP504-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24HJ128GP504-I/PT | dsPIC33FJ64GP304-I/PT | PIC24HJ64GP504T-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (PT) 10x10 mm | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same |
| CPU Performance | 40 MIPS | 40 MIPS | 40 MIPS + DSP MAC | 40 MIPS |
| Program Flash | 64 KB | 128 KB (+100%) | 64 KB | 64 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB |
| ADC | 12-bit, 500 ksps, 13 ch | 12-bit, 500 ksps, 13 ch | 12-bit, 500 ksps, 13 ch | 12-bit, 500 ksps, 13 ch |
| DSP Engine | No (PIC24H core only) | No | Yes (dsPIC33F MAC engine) | No |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Industry-standard PIC24H core with 40 MIPS at 3.3V and rich DMA (vs dsPIC33FJ64GP304-I/PT)
- Pin-compatible Flash upgrade path to PIC24HJ128GP504-I/PT (vs PIC24HJ128GP504-I/PT)
- Industrial -40C to +85C operation in 44-TQFP (vs PIC24HJ64GP504-E/PT (extended))
Design Notes
The PIC24HJ64GP504-I/PT has separate VDD (3.3V) and VDDCORE (2.5V internal regulator) pins. Place a 0.1 uF ceramic + 10 uF tantalum/ceramic on each VDD pin pair within 3 mm of the package, and a 1 uF to 10 uF low-ESR cap on each VDDCORE pin. Trace widths should be >= 0.2 mm and as wide as practical. Estimated: for 40 MIPS operation, average IDD is ~60 mA; with VDD = 3.3V the regulator dissipation is small but inductor-style supply decoupling prevents digital noise coupling into the ADC reference.
Route the 40 MHz primary oscillator traces (OSC1/OSC2) and any 32.768 kHz secondary oscillator traces as short and symmetrical as possible, surrounded by a ground pour on both sides. Keep switching I/O traces (PWM, SPI clock) away from analog AN0-AN12 inputs to prevent digital noise injection into the 12-bit ADC. The exposed thermal pad is not present on TQFP-44 - use a continuous ground plane beneath the package and stitch vias around the periphery to minimize ground bounce on high-current PWM outputs.
Do not exceed 40 MHz Fosc without setting the PLL correctly - misconfigured PLL locks cause Flash corruption and erratic I/O. Ensure MCLR is never left floating; tie it to VDD through a 10 kohm resistor with a 100 nF to ground for manual-reset operation. Avoid assigning the same remappable RPn pin to two peripherals - the PPS lock prevents conflicts but unmapped pins disable peripherals. The JTAG pins (TMS/TCK/TDI/TDO) must not be remapped to disable boundary scan unless required.
For ADC sampling on the 13 analog inputs, set the corresponding TRIS bit to '1' (digital input disabled) to prevent digital switching noise coupling into the analog pin. The 12-bit ADC achieves 500 ksps with 76 dB SINAD under proper PCB layout; adding a 100 nF capacitor near each analog pin reduces injection from digital crosstalk. Use the lowest-impedance PCB ground pour possible to minimize ADC reference drift. When sampling high-impedance sensors (> 5 kohm source impedance), add an external op-amp buffer because the sample-and-hold settles slowly with > 500 ohm sources.
Compliance Information
RoHS and lead-free per Microchip product page and TQFP-44 package marking. Not AEC-Q100 qualified; for automotive body controllers consider PIC24HJ64GP504-I/PT plus CAN transceiver as a non-Automotive-SPICE path. Halogen-free status not explicitly listed in the verified data and marked 'unknown'.