PIC24HJ128GP504-E/ML - 16-bit 40 MIPS MCU 128KB Flash | Microchip
MPN: PIC24HJ128GP504-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.89 | $48.90 |
| 100 | $4.21 | $421.00 |
| 500 | $3.78 | $1,890.00 |
| 1,000 | $3.45 | $3,450.00 |
PIC24HJ128GP504-E/ML Overview
A 16-bit microcontroller (MCU) is an embedded processor with a 16-bit data path, register width, and ALU, designed to outperform 8-bit architectures in DSP-style arithmetic while remaining easier to program than 32-bit cores. The PIC24H sits in the middle of Microchip's 16-bit portfolio (above PIC24F, below dsPIC33) and is pin-compatible with the dsPIC33F family, sharing a high degree of compatibility with dsPIC30F devices for migration flexibility.
Key features include a modified Harvard architecture with a 16-bit data path and 24-bit instruction words, single-cycle MAC, hardware multiply/divide, a 16-channel 12-bit 500 ksps ADC with on-chip references, up to 5 16-bit timers, two UART modules, two SPI, one I2C, and an RTCC. The 44-pin QFN package is optimized for compact designs and supports up to 35 digital I/O pins with individual peripheral remapping. The device includes a JTAG boundary scan and ICSP programming interface, plus an integrated watchdog timer and multiple power-saving modes (Idle, Sleep, and Deep Sleep).
Typical applications include industrial motor control, digital power conversion, advanced sensor interfacing, medical instrumentation, automotive body controllers, and consumer audio processing. The 40 MIPS performance, combined with DSP-friendly instructions, makes it suitable for closed-loop control loops and audio sample-rate processing. With 128 KB Flash and 8 KB RAM, the device comfortably supports protocol stacks (Modbus, CAN in some variants), real-time control firmware, and graphical LCD drivers.
When designing with this device, note that the QFN-44 exposed pad MUST be soldered to the PCB ground plane for thermal dissipation and electrical performance. Decoupling capacitors (100 nF and 10 uF) should be placed as close to the VDD pins as possible, and the analog supply (AVDD) should be filtered separately from VDD for ADC accuracy.
Drop-in alternatives for PIC24HJ128GP504-E/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 PIC24HJ128GP504-E/ML (same form factor and footprint) — differing in Package, Operating Temperature, ADC, Communication Peripherals, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24HJ128GP504A-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ128GP504-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ128GP804-I/ML
✅ Drop-In✓ In Stock
$8.9 / Unit
View Datasheet →PIC24HJ128GP504-H/ML
✅ Drop-In✓ In Stock
$6.95 / Unit
View Datasheet →PIC24FJ128GA204-I/ML
✅ Drop-In✓ In Stock
$3.27 / Unit
View Datasheet →PIC24HJ128GP504-E/ML Maximum Ratings & Electrical Characteristics
| Architecture | PIC 16-bit, modified Harvard |
| Core | PIC24H |
| CPU Speed (MIPS) | 40 MIPS at 3.3V |
| Program Memory (Flash) | 128 KB (43K x 24) |
| RAM | 8 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (E grade) |
| ADC | 12-bit, up to 500 ksps |
| Package | 44-pin QFN (8x8 mm) with EP |
| Mounting Type | Surface Mount |
| GPIO (max) | Up to 35 I/O |
| Timers | 5 x 16-bit |
| Communication | 2x UART, 2x SPI, 1x I2C |
| PWM Outputs | Multiple 16-bit PWM channels |
| Watchdog Timer | Yes (hardware WDT) |
| Programming/Debug | ICSP, JTAG boundary scan |
| RoHS Status | Compliant |
| Pin/Package Compatibility | Pin-compatible with dsPIC33F family |
PIC24HJ128GP504-E/ML Pin Configuration
| Pin 1 | RP5/RB5 — Remappable I/O port B bit 5 |
| Pin 2 | RP6/RB6 — Remappable I/O port B bit 6 |
| Pin 3 | RP7/RB7 — Remappable I/O port B bit 7 |
| Pin 4 | RP8/RB8 — Remappable I/O port B bit 8 |
| Pin 5 | RP9/RB9 — Remappable I/O port B bit 9 |
| Pin 6 | VDD — Positive supply voltage (3.3V) |
| Pin 7 | VSS — Ground reference |
| Pin 8 | OSC1/CLKI — Crystal oscillator input or external clock |
| Pin 9 | OSC2/CLKO — Crystal oscillator output |
| Pin 10 | TMS — JTAG test mode select |
| Pin 11 | TCK — JTAG test clock |
| Pin 12 | TDO — JTAG test data output |
| Pin 13 | TDI — JTAG test data input |
| Pin 14 | MCLR — Master clear (reset, active-low) |
| Pin 15 | PGED1 — ICSP programming data |
| Pin 16 | PGEC1 — ICSP programming clock |
| Pin 17 | AN0 — Analog input 0 / RB0 |
| Pin 18 | AN1 — Analog input 1 / RB1 |
| Pin 19 | AN2 — Analog input 2 / RB2 |
| Pin 20 | AN3 — Analog input 3 / RB3 |
| Pin 21 | AN4 — Analog input 4 / RB4 |
| Pin 22 | AN5 — Analog input 5 / RA0 |
| Pin 23 | AN6 — Analog input 6 / RA1 |
| Pin 24 | AN7 — Analog input 7 / RA2 |
| Pin 25 | AVDD — Analog positive supply |
| Pin 26 | AVSS — Analog ground reference |
| Pin 27 | RP12/RB12 — Remappable I/O port B bit 12 |
| Pin 28 | RP13/RB13 — Remappable I/O port B bit 13 |
| Pin 29 | RP14/RB14 — Remappable I/O port B bit 14 |
| Pin 30 | RP15/RB15 — Remappable I/O port B bit 15 |
| Pin 31 | VSS — Ground reference |
| Pin 32 | VDD — Positive supply voltage (3.3V) |
| Pin 33 | RP0/RB0 — Remappable I/O port B bit 0 |
| Pin 34 | RP1/RB1 — Remappable I/O port B bit 1 |
| Pin 35 | RP2/RB2 — Remappable I/O port B bit 2 |
| Pin 36 | RP3/RB3 — Remappable I/O port B bit 3 |
| Pin 37 | RP4/RB4 — Remappable I/O port B bit 4 |
| Pin 38 | VSS — Ground reference |
| Pin 39 | RA8 — Port A bit 8 |
| Pin 40 | RA9 — Port A bit 9 |
| Pin 41 | RA10 — Port A bit 10 |
| Pin 42 | RP10/RB10 — Remappable I/O port B bit 10 |
| Pin 43 | RP11/RB11 — Remappable I/O port B bit 11 |
| Pin 44 | VDD — Positive supply voltage (3.3V) |
Typical Applications
PIC24HJ128GP504-E/ML is suitable for 7 applications: Industrial Motor Control, Digital Power Conversion (SMPS), Medical Instrumentation and Monitoring, Automotive Body and Lighting Controllers, Audio Processing and Effects, IoT Sensor Hubs and Edge Nodes, Industrial Sensor Signal Conditioning.
Industrial Motor Control
The PIC24HJ128GP504-E/ML is well suited for BLDC and PMSM motor control loops in industrial drives. Its 40 MIPS throughput and single-cycle MAC instruction enable 20 kHz+ PWM update rates with field-oriented control (FOC) algorithms. The 12-bit 500 ksps ADC samples phase currents at 100+ kHz with low latency, while the hardware quadrature encoder interface (QEI) reads Hall/encoder feedback without CPU overhead. The 5 timer modules generate complementary 16-bit PWM with dead-band insertion. Compared with 8-bit MCUs, the 16-bit data path removes scaling bottlenecks in PID calculations, and the extended -40C to +125C temperature range survives drive cabinet ambient. Pair with Microchip MCPWM driver (e.g., MCP8026) for 3-phase power stage.
Recommended
Digital Power Conversion (SMPS)
The PIC24HJ128GP504-E/ML delivers deterministic control-loop performance for digital switch-mode power supplies including PFC, LLC, and phase-shift full-bridge converters. Its 40 MIPS throughput supports 200 kHz+ control loop rates while executing sliding-mode or average-current-mode algorithms. The 12-bit ADC with dedicated sample-and-hold enables sub-microsecond feedback acquisition, and the 5 timer/capture modules provide hardware-triggered ADC sampling synchronized with PWM edges. The extended -40C to +125C range operates in converter ambient, and 128 KB Flash fits complex state machines plus communication stacks (PMBus, Modbus). PIC24HJ128GP504A-E/ML silicon revision improves ADC linearity for tighter regulation loops.
Recommended
Medical Instrumentation and Monitoring
The PIC24HJ128GP504-E/ML is appropriate for Class II medical devices such as patient monitors, infusion pumps, and benchtop diagnostic analyzers. Its 16-bit data path and 12-bit ADC deliver sufficient resolution for bio-signal acquisition (ECG, SpO2, temperature), while the deterministic interrupt latency ensures responsive alarm handling. The 128 KB Flash stores graphical UI code, communication stacks (USB, Bluetooth via UART bridge), and application firmware. Extended industrial temperature range handles equipment thermal rise. Note that medical applications require IEC 60601-1 compliance validation of the complete system; the PIC24HJ128GP504-E/ML itself is not a safety-certified component but is widely used in such designs.
Recommended
Automotive Body and Lighting Controllers
The PIC24HJ128GP504-E/ML addresses automotive body controllers, lighting modules (headlamp LED matrix, interior RGB ambient), and HVAC actuators. Its -40C to +125C range covers under-hood and cabin ambient, while the 16-bit throughput supports LIN/CAN stacks and PWM dimming curves simultaneously. The 5 timers generate PWM frequencies up to 16 kHz for LED dimming without flicker. For AEC-Q100 qualified body control, choose PIC24HJ128GP504A-E/ML with automotive-grade silicon. Hardware peripherals include 1 UART for LIN (with LIN protocol handled in firmware), 1 I2C for sensor hubs, and 2 SPI for LED driver communication.
Recommended
Audio Processing and Effects
The PIC24HJ128GP504-E/ML provides enough MIPS for 48 kHz audio sample-rate processing including parametric EQ, dynamics compression, and reverb algorithms. Its single-cycle MAC and 16-bit data path support efficient IIR/FIR filtering on 24-bit audio streams. The 12-bit ADC at 500 ksps oversamples for higher SNR, while SPI interfaces connect to audio DACs (e.g., MCP4725) and codecs. The 128 KB Flash stores sample-based effects, preset tables, and USB-MIDI stacks via UART-bridge Bluetooth modules. Compared with dedicated DSP chips, the PIC24HJ128GP504-E/ML integrates control + audio processing in one IC for cost-sensitive pro-audio products.
Recommended
IoT Sensor Hubs and Edge Nodes
The PIC24HJ128GP504-E/ML serves as a low-cost edge sensor hub aggregating multiple sensors (temperature, pressure, motion, gas) and forwarding via UART-WiFi/BLE bridge. Its 8 KB SRAM handles moderate buffering for sensor fusion, while the 12-bit ADC reads analog sensor outputs directly. Sleep current management (Deep Sleep mode) extends battery life to months on coin cells. The hardware I2C/SPI interfaces connect to digital sensor ICs (e.g., MCP9808 temperature, BMI160 IMU), and the 16-bit MCU outperforms 8-bit alternatives in compute-heavy sensor-fusion workloads. For lower-power IoT, the PIC24FJ128GA204-I/ML variant offers similar functionality at lower MIPS.
Recommended
Industrial Sensor Signal Conditioning
The PIC24HJ128GP504-E/ML suits 4-20 mA loop-powered transmitters, RTD/thermocouple signal conditioning, and strain-gauge bridges. Its 12-bit ADC at 500 ksps oversamples for 16-bit effective resolution, and the hardware multiply/divide accelerates linearization routines for thermocouple tables. The extended -40C to +125C range operates in industrial field cabinets. UART/SPI connect to HART modems or wirelessHART radio modules, while I2C drives local EEPROM (24LC256) for calibration data. The 16-bit data path removes scaling overhead in polynomial compensation math compared with 8-bit controllers.
Recommended
Recommended Products Summary
Engineering reference data for PIC24HJ128GP504-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24HJ128GP504A-E/ML | PIC24HJ128GP504-I/ML | dsPIC33FJ128GP804-I/ML | PIC24HJ128GP504-H/ML | PIC24FJ128GA204-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8) | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 70 MIPS | 20 MIPS | 16 MIPS |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +85C | 0C to +70C | -40C to +85C |
| Core Architecture | PIC24H (16-bit, no DSP) | PIC24H (16-bit, no DSP) | PIC24H (16-bit, no DSP) | dsPIC33F (16-bit + DSP) | PIC24H (16-bit, no DSP) | PIC24F (16-bit, low-power) |
| ADC | 12-bit, 500 ksps | 12-bit, 500 ksps | 12-bit, 500 ksps | 12-bit, 500 ksps | 12-bit, 500 ksps | 10/12-bit |
| Pin Compatibility | dsPIC33F compatible | dsPIC33F compatible | dsPIC33F compatible | PIC24H compatible | dsPIC33F compatible | Different pinout (PIC24F family) |
Key Differentiators
- Extended industrial temperature range with identical electricals (vs PIC24HJ128GP504-I/ML)
- Original silicon revision with full datasheet errata documentation (vs PIC24HJ128GP504A-E/ML)
- Pin-compatible upgrade path to dsPIC33F DSP engine (vs dsPIC33FJ128GP804-I/ML)
Design Notes
The QFN-44 package has an exposed thermal pad (EP) on the underside that MUST be soldered to a PCB ground plane. Solder paste stencil apertures for the EP should cover 50-80% of the pad area to ensure proper solder joint formation and prevent voiding. The EP provides both electrical ground (VSS) connection and the primary thermal dissipation path. Recommended thermal via pattern: 9-13 vias, 0.3 mm drill, 0.5 mm pitch, under the EP. Decoupling capacitors (100 nF X7R + 10 uF tantalum) must be placed within 3 mm of each VDD pin.
AVDD and AVDD-related pins should be filtered separately from VDD to minimize ADC noise. Place a ferrite bead between VDD and AVDD, with 100 nF + 10 uF decoupling on each side. Estimated: with a 100 mA load at 3.3V, the VDD pin current is ~100 mA; the AVDD pin supply ADC analog sampling and should be kept below 5 mA. Power-on reset timing: VDD rise time must be monotonic within 1 ms; otherwise the internal POR may not reset reliably. Add an external voltage supervisor (e.g., MCP100) if VDD rise is slow or non-monotonic.
Common pitfalls: (1) Forgetting to configure JTAG/ICSP pins as digital I/O by clearing the JTAGEN bit in the Configuration register - this disables JTAG and frees TMS/TCK/TDO/TDI for GPIO. (2) Failing to use the correct oscillator configuration - the 40 MIPS Fosc=80 MHz requires a PLL configuration; 8 MHz crystal with PLL multiplier of 20 gives 160 MHz Fosc but FCY=80 MHz/2=40 MIPS. (3) Not connecting the unused analog inputs (ANx) to AVDD or AVSS - floating analog inputs cause shoot-through current and ADC noise.
For SPI runs above 10 MHz or over 50 mm trace length, use source-series termination (resistor at driver output, value matched to trace impedance ~50 ohm). For high-speed GPIO (40 MHz+ toggling), keep traces short and avoid stubs. The peripheral pin mapping (RPn) feature allows reassignment of peripheral functions to different GPIO pins - use this to optimize PCB layout. ICSP connector (PGED1/PGEC1) should be brought to a header for in-circuit programming; do not share these pins with high-frequency signals as they may interfere with programming.
Compliance Information
RoHS compliant per Microchip product page. REACH compliance confirmed by Microchip product declaration. The 'ML' suffix designates a lead-free surface-mount package. AEC-Q100: the standard PIC24HJ128GP504-E/ML is NOT AEC-Q100 qualified; for automotive applications, choose PIC24HJ128GP504A-E/ML with automotive-grade silicon or contact Microchip for AEC-Q100 qualified variants.
