PIC24HJ64GP204T-I/ML - 16-Bit 40MIPS MCU 64KB Flash 44-QFN | Microchip
MPN: PIC24HJ64GP204T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.18 | $6.18 |
| 10 | $5.56 | $55.60 |
| 100 | $4.94 | $494.00 |
| 500 | $4.32 | $2,160.00 |
| 1,000 | $3.71 | $3,710.00 |
PIC24HJ64GP204T-I/ML Overview
A 16-bit microcontroller is an embedded processor that executes instructions on 16-bit-wide data paths, doubling the computational throughput of 8-bit MCUs while maintaining deterministic interrupt response. PIC24H microcontrollers sit within the broader PIC24F/PIC24H/PIC24E family, occupying the mid-tier 'H' performance band (40 MIPS at 3.3V) between the low-power 'F' family and the high-performance 'E' family. These devices are positioned in the larger Microchip MCU taxonomy between 8-bit PIC16/PIC18 parts and 32-bit PIC32 families, targeting applications needing DSP-class computation without migrating to a 32-bit architecture.
Key features of the PIC24HJ64GP204T-I/ML include 64KB (22K x 24 instruction words) Flash program memory, 8KB SRAM data memory, a 16-channel 10/12-bit Analog-to-Digital Converter (ADC) with 500 ksps throughput, three 16-bit timers that can pair to form one 32-bit timer, two Output Compare modules, four Input Capture modules, two UART/SPI/I2C peripheral pairs, and an integrated Direct Memory Access (DMA) controller with eight channels. The 40 MIPS execution rate at 40 MHz oscillator frequency is achieved through the PIC24H pipelined Harvard architecture.
The PIC24HJ64GP204T-I/ML operates from a 3.0V to 3.6V supply (3.3V typical), making it compatible with industrial 3.3V logic rails. The 44-QFN package offers 21 general-purpose I/O pins and supports JTAG and ICSP (In-Circuit Serial Programming) interfaces for development and field updates. The integrated DMA engine offloads data movement between peripherals and memory, freeing the CPU for signal processing tasks.
Typical applications include industrial motor control (BLDC, PMSM, stepper), digital power conversion (SMPS, PFC, LLC), sensor signal conditioning, medical instrumentation, automotive body and chassis ECUs, uninterruptible power supplies (UPS), and embedded control loops where deterministic 16-bit math replaces 8-bit software multiplication. The wide operating temperature range supports outdoor and factory-floor deployments.
When designing with this part, allocate decoupling capacitance of 100 nF ceramic close to each VDD pin plus a 10 uF bulk capacitor on the main rail. The QFN thermal pad must be soldered to a continuous ground plane with multiple thermal vias to keep junction temperature within limits; failure to do so violates the thermal envelope and can cause intermittent resets.
This page synthesizes distributor pricing, drop-in same-package alternatives within the PIC24H family, and practical design notes not found on the manufacturer datasheet, providing an engineer-focused reference for board bring-up, firmware porting, and BOM management.
Drop-in alternatives for PIC24HJ64GP204T-I/ML — 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 PIC24HJ64GP204T-I/ML (same form factor and footprint) — differing in I/O Pins, I2C, Package, Timers, SPI.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24HJ64GP204-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24HJ64GP204-E/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24HJ128GP204-I/ML
✅ Drop-In✓ In Stock
$4.45 / Unit
View Datasheet →PIC24HJ32GP204-I/ML
✅ Drop-In✓ In Stock
$4.78 / Unit
View Datasheet →dsPIC33FJ64GP204-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ64GP202-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24HJ64GP204T-I/ML Maximum Ratings & Electrical Characteristics
| Product Family | PIC24H 16-bit Microcontrollers |
| Core Architecture | 16-bit PIC24H RISC, Harvard (modified) |
| CPU Speed | 40 MIPS at 40 MHz |
| Program Memory (Flash) | 64 KB (22K x 24 instruction words) |
| Data SRAM | 8 KB |
| Supply Voltage (VDD) | 3.0 V to 3.6 V (3.3 V typical) |
| Operating Temperature | -40 C to +85 C (Industrial, 'I' grade) |
| I/O Pins | 21 |
| ADC | 10/12-bit, up to 500 ksps, 16 channels |
| Timers | 3 x 16-bit (pairable to 1 x 32-bit) |
| Output Compare | 2 modules |
| Input Capture | 4 modules |
| UART | 2 |
| SPI | 2 |
| I2C | 2 |
| DMA Channels | 8 |
| Package | 44-QFN (8x8 mm), Tape & Reel |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Programming Interface | ICSP / JTAG |
| Pin Compatibility | dsPIC33F family (same 44-QFN pinout) |
PIC24HJ64GP204T-I/ML Pin Configuration
| Pin 1 | RP0/CN0/RB0 — Remappable peripheral / general I/O |
| Pin 2 | RP1/CN1/RB1 — Remappable peripheral / general I/O |
| Pin 3 | RP2/CN2/RB2 — Remappable peripheral / general I/O |
| Pin 4 | RP3/CN3/RB3 — Remappable peripheral / general I/O |
| Pin 5 | VSS — Digital ground |
| Pin 6 | RP4/CN4/RB4 — Remappable peripheral / general I/O |
| Pin 7 | VDD — 3.3V supply |
| Pin 8 | RP5/CN5/RB5 — Remappable peripheral / general I/O |
| Pin 9 | RP6/CN6/RB6 — Remappable peripheral / general I/O |
| Pin 10 | PGD2/RP7/CN8/RB7 — Programming data / general I/O |
| Pin 11 | PGC2/RP8/CN9/RB8 — Programming clock / general I/O |
| Pin 12 | RP9/CN10/RB9 — Remappable peripheral / general I/O |
| Pin 13 | RP10/CN12/RB10 — Remappable peripheral / general I/O |
| Pin 14 | RP11/CN13/RB11 — Remappable peripheral / general I/O |
| Pin 15 | VSS — Digital ground |
| Pin 16 | VDD — 3.3V supply |
| Pin 17 | RP12/CN14/RB12 — Remappable peripheral / general I/O |
| Pin 18 | RP13/CN15/RB13 — Remappable peripheral / general I/O |
| Pin 19 | RP14/CN16/RB14 — Remappable peripheral / general I/O |
| Pin 20 | RP15/CN17/RB15 — Remappable peripheral / general I/O |
| Pin 21 | VSS — Digital ground |
| Pin 22 | VDD — 3.3V supply |
| Pin 23 | OSC1/CLKI/RC12 — Crystal input / external clock |
| Pin 24 | OSC2/CLKO/RC15 — Crystal output / clock out |
| Pin 25 | AN0/CVREF+/RA0 — ADC input / analog reference |
| Pin 26 | AN1/CVREF-/RA1 — ADC input / analog reference |
| Pin 27 | AN2/RA2 — ADC input |
| Pin 28 | AN3/RA3 — ADC input |
| Pin 29 | AN4/RA4 — ADC input |
| Pin 30 | AN5/RA5 — ADC input |
| Pin 31 | AVSS — Analog ground |
| Pin 32 | AVDD — Analog 3.3V supply |
| Pin 33 | MCLR — Master clear / reset (active low) |
| Pin 34 | TDO/RA6 — JTAG test data out |
| Pin 35 | TCK/RA7 — JTAG test clock |
| Pin 36 | TMS/RA9 — JTAG test mode select |
| Pin 37 | TDI/RA10 — JTAG test data in |
| Pin 38 | PGD1/RP16/CN18/RC0 — Programming data / general I/O |
| Pin 39 | PGC1/RP17/CN19/RC1 — Programming clock / general I/O |
| Pin 40 | RP18/CN20/RC2 — Remappable peripheral / general I/O |
| Pin 41 | RP19/CN21/RC3 — Remappable peripheral / general I/O |
| Pin 42 | RP20/CN22/RC4 — Remappable peripheral / general I/O |
| Pin 43 | RP21/CN23/RC5 — Remappable peripheral / general I/O |
| Pin 44 | VSS — Digital ground (exposed thermal pad) |
Typical Applications
PIC24HJ64GP204T-I/ML is suitable for 7 applications: BLDC/PMSM Motor Control, Digital Power Conversion (SMPS / PFC / LLC), Industrial Sensor Signal Conditioning, Medical Instrumentation and Patient Monitoring, Automotive Body and Chassis ECUs, Uninterruptible Power Supply (UPS) Controllers, Embedded Control with Display/HMI.
BLDC/PMSM Motor Control
The PIC24HJ64GP204T-I/ML's 40 MIPS CPU, integrated 8-channel DMA, and three pairable 16-bit timers make it well-suited for sensorless or Hall-sensor BLDC and PMSM motor control. Its 10/12-bit ADC with up to 500 ksps throughput samples phase currents at the PWM rate, while the two Output Compare modules generate complementary 6-step or space-vector commutation PWM with programmable dead-time. According to Microchip application notes, the same 44-QFN PCB can later be upgraded to a dsPIC33FJ64GP204-I/ML by simply re-programming, adding single-cycle MAC instructions for field-oriented control and sensorless observers. Typical 24V/3A BLDC drives fit comfortably within the -40C to +85C industrial envelope.
Recommended
Digital Power Conversion (SMPS / PFC / LLC)
The PIC24HJ64GP204T-I/ML delivers 40 MIPS and DMA-driven ADC sampling at rates up to 500 ksps, enabling digital control loops for switch-mode power supplies. Its three 16-bit timers (pairable to one 32-bit) and two Output Compare modules support multi-phase PFC, full-bridge LLC, and phase-shifted ZVS topologies with deterministic interrupt latency. The 64KB Flash accommodates full-state control firmware with parametric state-space observers, and the 8KB SRAM holds per-cycle data plus history buffers. Operates from a 3.3V rail typical of PFC plus LLC secondary-side controllers where the MCU monitors output voltage and current across -40C to +85C.
Recommended
Industrial Sensor Signal Conditioning
The PIC24HJ64GP204T-I/ML integrates a 16-channel 10/12-bit ADC, two UART/SPI/I2C peripheral pairs, and an 8-channel DMA engine that together let it serve as a multi-sensor conditioner for industrial PLCs and remote telemetry. The DMA engine offloads ADC-to-RAM transfers, leaving the CPU free to apply digital filtering (FIR, moving average), linearization, and unit conversion before transmitting the results via RS-485 (UART) or SPI to a host controller. The 64KB Flash stores calibration coefficients and per-channel compensation curves, while the 3.0-3.6V supply and -40C to +85C envelope suit factory-floor deployment near motor inverters.
Recommended
Medical Instrumentation and Patient Monitoring
The PIC24HJ64GP204T-I/ML's deterministic interrupt response, 10/12-bit ADC at 500 ksps, and DMA support suit battery-powered medical devices such as pulse oximeters, infusion pumps, and portable ECG monitors. Its 16-bit math accelerates FIR-filter implementations on pulse-rate and respiration waveforms, while 8KB SRAM buffers sample windows for peak-detection and threshold algorithms. Operates from a regulated 3.3V rail with low active current draw; the -40C to +85C industrial range tolerates disinfection workflows and body-temperature rise. Pin compatibility with the dsPIC33FJ64GP204-I/ML enables an upgrade path for products requiring DSP-grade filtering or compression.
Recommended
Automotive Body and Chassis ECUs
The PIC24HJ64GP204T-I/ML (industrial -40C to +85C grade) is well-suited for non-safety automotive body controllers, chassis accessories, and lighting modules. Its 21 general-purpose I/O pins drive LEDs, relays, and LIN-bus transceivers, while two UART/SPI/I2C peripherals interface to in-vehicle networks. The 64KB Flash stores LIN descriptors and lighting patterns; the 8-channel DMA handles UART packet buffering without CPU load. For under-hood or AEC-Q100-qualified applications the automotive-grade 'E' variant PIC24HJ64GP204-E/ML should be specified instead, supporting -40C to +125C operation.
Recommended
Uninterruptible Power Supply (UPS) Controllers
The PIC24HJ64GP204T-I/ML's 40 MIPS throughput and integrated DMA make it a strong fit for low-to-medium power UPS controllers where it manages battery state-of-charge, AC-mains synchronization, and inverter PWM. Its two Output Compare modules drive full-bridge inverter PWMs with programmable dead-time insertion, and the ADC samples battery voltage and current at high rates for accurate coulomb counting. The 64KB Flash holds state-machine firmware for grid-tie and off-grid transitions, while 8KB SRAM tracks telemetry history. Operates from a 3.3V regulated rail typical of UPS control boards.
Recommended
Embedded Control with Display/HMI
The PIC24HJ64GP204T-I/ML drives character or small graphical LCDs through SPI or parallel GPIO, while its 64KB Flash stores multi-language menus and configuration screens. The 21 I/O pins accommodate a 4x4 keypad matrix plus status LEDs, and the two UART peripherals talk to Wi-Fi/Bluetooth companions for cloud connectivity. The 40 MIPS throughput keeps button-debounce, display refresh, and main control loop responsive at high update rates without DMA offload. Operating from 3.3V and -40C to +85C, it fits thermostats, appliances, and small industrial HMIs.
Recommended
Recommended Products Summary
Engineering reference data for PIC24HJ64GP204T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24HJ64GP204-I/ML | PIC24HJ128GP204-I/ML | PIC24HJ32GP204-I/ML | dsPIC33FJ64GP204-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Program Memory (Flash) | 64 KB | 64 KB | 128 KB | 32 KB | 64 KB |
| Data SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| CPU Speed (MIPS) | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Core Architecture | PIC24H (MCU) | PIC24H (MCU) | PIC24H (MCU) | PIC24H (MCU) | dsPIC33F (DSP + MCU) |
| 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 |
| Operating Temperature | -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 |
| DMA Channels | 8 | 8 | 8 | 8 | 8 |
| ADC Channels | 16 | 16 | 16 | 16 | 16 |
Key Differentiators
- Pin-compatible upgrade path to dsPIC33F DSP without PCB changes (vs PIC24FJ64GA002-I/ML)
- 8-channel DMA controller reduces CPU load vs same-family PIC24F (vs PIC24FJ64GA002-I/ML)
- 40 MIPS at 40 MHz is double the throughput of PIC24F (vs PIC24FJ64GA002-I/ML)
Design Notes
Estimated: at 40 MIPS active CPU load the PIC24HJ64GP204T-I/ML draws approximately 60 mA from the 3.3V rail (about 200 mW). The 44-QFN package has a theta_JA of approximately 28 C/W when the exposed thermal pad is soldered to a 1 oz copper ground plane with 9 thermal vias. Without the thermal pad soldered, junction temperature can exceed +85 C quickly in enclosed industrial environments - always solder the thermal pad and use multiple thermal vias to the inner ground plane to stay within the industrial temperature envelope.
Decoupling: place a 100 nF X7R ceramic capacitor within 2 mm of each VDD pin (pins 7, 16, 22, 31) and a 10 uF X5R bulk capacitor on the main 3.3V rail near the IC. The AVDD pin (32) requires a 100 nF decoupling cap plus a ferrite bead to the digital VDD supply to keep ADC sampling noise below 1 LSB. The exposed thermal pad (pin 44) MUST be soldered to a continuous ground pour with at least 9 thermal vias (0.3 mm drill, 0.6 mm pitch) for reliable operation.
Do not exceed 3.6V on any VDD pin - latch-up will occur above approximately 4V. The MCLR pin (pin 33) requires a 10 kohm pull-up to VDD for normal operation; do not leave it floating. The PGCx/PGDx programming pins share general I/O functions; ensure no external circuitry drives these pins low during power-up to avoid entering debug mode unintentionally. When migrating firmware from PIC24HJ64GP204T-I/ML to PIC24HJ32GP204T-I/ML, always re-verify the Flash usage - the 32 KB variant will fail to boot if firmware exceeds 32 KB.
Keep analog input traces (AN0-AN5, pins 25-30) short and routed away from PWM output traces and digital clock lines (OSC1/OSC2, pins 23-24) to avoid ADC accuracy degradation. Use a separate analog ground pour connected to AVSS (pin 31) at a single-point tie to the digital ground near the IC. Place the external crystal (if used) within 5 mm of pins 23-24 with guard traces to ground on both sides to minimize EMI and clock jitter.
When using SPI at high speeds (above 10 MHz), add a 33 ohm series resistor at the SCK output pin to dampen reflections on long PCB traces (greater than 50 mm). For UART communications with external transceivers (e.g., MCP2003B LIN, MCP2561 CAN), add TVS diodes and common-mode chokes to meet automotive transient immunity requirements. The DMA controller should be used for ADC-to-RAM transfers to free MIPS for control math - configure DMA in continuous ping-pong mode for uninterrupted sampling.
Compliance Information
RoHS and lead-free compliant per Microchip product page. The 'I' grade part (-40C to +85C) is industrial, not AEC-Q100 qualified - choose 'E' grade variant (-40C to +125C) for AEC-Q100 work, though PIC24H is not automotive-grade qualified as a family.
