PIC24HJ128GP306T-I/PT - 16-Bit 40MIPS 128KB Flash MCU | Microchip
MPN: PIC24HJ128GP306T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.92 | $9.92 |
| 10 | $8.95 | $89.50 |
| 100 | $7.45 | $745.00 |
| 500 | $6.78 | $3,390.00 |
| 1,000 | $6.1 | $6,100.00 |
PIC24HJ128GP306T-I/PT Overview
A 16-bit microcontroller is a single-chip computer whose data path, registers and ALU operate on 16-bit words, doubling the throughput of 8-bit architectures while remaining cheaper and easier to use than 32-bit devices. The PIC24H family is Microchip's high-performance 16-bit tier (PIC24F -> 16-bit PIC -> microcontroller -> MCU -> embedded computing), built on a modified Harvard architecture with separate instruction and data buses. Within the broader semiconductor taxonomy it sits under microcontrollers, which themselves belong to the embedded processing category of integrated circuits.
Key features of the PIC24HJ128GP306T-I/PT include 53 general-purpose I/O pins, two UART/USART modules, two SPI interfaces, one I2C bus, and protocol support for IrDA and LINbus. On-chip peripherals include a 16-channel 10/12-bit ADC, multiple 16-bit timers, an input capture module, output compare, a real-time clock calendar, and a charge-time measurement unit (CTMU) for capacitive touch sensing. The device integrates a single-cycle hardware multiplier and a 16 x 16-bit MAC engine, enabling DSP-grade signal processing at full CPU clock.
Technically, the PIC24HJ128GP306T uses a 16-bit modified Harvard core with a 2-stage pipeline, capable of 40 MIPS at 40 MHz from a 3.3V supply. The non-volatile memory consists of 128 KB Flash (endurance rated at a minimum of 1,000 erase/write cycles per the device family specification) and 16 KB SRAM, with 4 KB of EEPROM emulation area. The integrated DMA controller can move data between peripherals and memory without CPU intervention, and the parallel master port supports external bus expansion for larger memory-mapped peripherals.
Typical applications include industrial motor control (BLDC, PMSM, ACIM), digital power conversion (digital PFC, LLC and phase-shift converters), advanced sensor fusion, medical patient monitors, building automation controllers, automotive body and infotainment subsystems, and graphics-capable HMI panels. The combination of DSP performance, ample headroom for protocol stacks, and rich analog peripherals makes the PIC24HJ128GP306T a strong fit for these use cases.
When designing with this part, note that the 64-pin TQFP footprint supports both GP306 (USB-less) and GP310/GP206 variants in the same land pattern, easing migration within the PIC24H family. Be sure to observe Flash endurance limits during development and use the ICSP interface with a PGECx/PGEDx pair to avoid premature wear of the program memory. This page synthesizes distributor pricing, drop-in package-compatible alternatives and practical design notes not found on a single manufacturer page, providing a faster engineering reference.
Drop-in alternatives for PIC24HJ128GP306T-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 PIC24HJ128GP306T-I/PT (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, ADC, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24HJ128GP306-I/PT
✅ Drop-In✓ In Stock
$4.05 / Unit
View Datasheet →PIC24HJ128GP306A-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ128GP310-I/PT
✅ Drop-In✓ In Stock
$5.84 / Unit
View Datasheet →PIC24HJ128GP206A-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ128GP210-I/PT
✅ Drop-In✓ In Stock
$5.42 / Unit
View Datasheet →PIC24FJ128GA306-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ128GP306T-I/PT Maximum Ratings & Electrical Characteristics
| Manufacturer | Microchip Technology |
| Series | PIC® 24H |
| Core Processor | PIC24H |
| Core Size | 16-bit |
| Core Speed | 40 MIPS (40 MHz) |
| Program Memory | 128 KB (43K x 24) Flash |
| RAM | 16 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| I/O Pins | 53 |
| Connectivity | I2C, IrDA, LINbus, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| ADC | 16-channel 10/12-bit |
| Package | 64-TQFP (10x10 mm) |
| Operating Temperature | -40C to +85C (industrial grade) |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| RoHS Status | Compliant |
PIC24HJ128GP306T-I/PT Pin Configuration
| Pin 1 | RC1 — General purpose I/O / I2C SCL |
| Pin 2 | RC2 — General purpose I/O / I2C SDA |
| Pin 3 | RC3 — General purpose I/O / SPI SCK |
| Pin 4 | RC4 — General purpose I/O / SPI SDI |
| Pin 5 | AVDD — Analog power supply |
| Pin 6 | AVSS — Analog ground |
| Pin 7 | RA0 — Analog input AN0 |
| Pin 8 | RA1 — Analog input AN1 |
| Pin 9 | RA2 — Analog input AN2 |
| Pin 10 | RA3 — Analog input AN3 |
| Pin 11 | RA4 — Analog input AN4 |
| Pin 12 | RA5 — Analog input AN5 |
| Pin 13 | RA6 — General purpose I/O / oscillator |
| Pin 14 | RA7 — General purpose I/O / oscillator |
| Pin 15 | VDD — Digital power supply |
| Pin 16 | VSS — Digital ground |
| Pin 17 | RB0 — General purpose I/O / programming |
| Pin 18 | RB1 — General purpose I/O / programming |
| Pin 19 | RB2 — General purpose I/O |
| Pin 20 | RB3 — General purpose I/O |
| Pin 21 | RB4 — General purpose I/O |
| Pin 22 | RB5 — General purpose I/O |
| Pin 23 | RB6 — General purpose I/O / ICS PGC |
| Pin 24 | RB7 — General purpose I/O / ICS PGD |
| Pin 25 | RB8 — General purpose I/O |
| Pin 26 | RB9 — General purpose I/O |
| Pin 27 | RB10 — General purpose I/O |
| Pin 28 | RB11 — General purpose I/O |
| Pin 29 | RB12 — General purpose I/O |
| Pin 30 | RB13 — General purpose I/O |
| Pin 31 | RB14 — General purpose I/O |
| Pin 32 | RB15 — General purpose I/O |
| Pin 33 | VDD — Digital power supply |
| Pin 34 | VSS — Digital ground |
| Pin 35 | RC0 — General purpose I/O |
| Pin 36 | RC5 — General purpose I/O |
| Pin 37 | RC6 — General purpose I/O / UART TX |
| Pin 38 | RC7 — General purpose I/O / UART RX |
| Pin 39 | RC8 — General purpose I/O |
| Pin 40 | RC9 — General purpose I/O |
| Pin 41 | RC10 — General purpose I/O |
| Pin 42 | RC11 — General purpose I/O |
| Pin 43 | RC12 — General purpose I/O |
| Pin 44 | RC13 — General purpose I/O |
| Pin 45 | RC14 — General purpose I/O |
| Pin 46 | RC15 — General purpose I/O |
| Pin 47 | RD0 — General purpose I/O / PMD0 |
| Pin 48 | RD1 — General purpose I/O / PMD1 |
| Pin 49 | RD2 — General purpose I/O / PMD2 |
| Pin 50 | RD3 — General purpose I/O / PMD3 |
| Pin 51 | RD4 — General purpose I/O / PMD4 |
| Pin 52 | RD5 — General purpose I/O / PMD5 |
| Pin 53 | RD6 — General purpose I/O / PMD6 |
| Pin 54 | RD7 — General purpose I/O / PMD7 |
| Pin 55 | RD8 — General purpose I/O / PMD8 |
| Pin 56 | RD9 — General purpose I/O / PMD9 |
| Pin 57 | RD10 — General purpose I/O / PMD10 |
| Pin 58 | RD11 — General purpose I/O / PMD11 |
| Pin 59 | RD12 — General purpose I/O / PMD12 |
| Pin 60 | RD13 — General purpose I/O / PMD13 |
| Pin 61 | RD14 — General purpose I/O / PMD14 |
| Pin 62 | RD15 — General purpose I/O / PMD15 |
| Pin 63 | VDD — Digital power supply |
| Pin 64 | VSS — Digital ground |
Typical Applications
PIC24HJ128GP306T-I/PT is suitable for 7 applications: Industrial Motor Control, Digital Power Conversion, Building Automation Controllers, Medical Patient Monitoring, Automotive Body and Infotainment, Graphics HMI Panels, Sensor Fusion and IoT Edge Nodes.
Industrial Motor Control
The PIC24HJ128GP306T-I/PT delivers 40 MIPS performance with a hardware MAC engine and 16-bit PWM channels, making it ideal for BLDC, PMSM, and AC induction motor control. With 53 I/O pins, designers can drive six IGBT gate signals plus encoder feedback without external logic. The 16-channel ADC enables simultaneous current and voltage sampling for field-oriented control loops. Compared with ARM Cortex-M0 alternatives, the PIC24H's deterministic interrupt latency simplifies real-time commutation.
Recommended
Digital Power Conversion
For digital PFC, LLC, and phase-shift full-bridge converters, the PIC24HJ128GP306T-I/PT's 40 MIPS core runs control loops with sub-microsecond latency. The 16 KB RAM accommodates lookup tables for DPWM and PID coefficients, while the DMA controller offloads ADC-to-PWM data movement from the CPU. Its 3.0-3.6 V operation matches typical auxiliary rails in industrial PSU designs. Compared with legacy dsPIC, this GP variant trades DSP extensions for more general-purpose peripherals.
Recommended
Building Automation Controllers
Building automation systems (HVAC, lighting, access control) demand reliable 16-bit performance with rich connectivity - exactly the PIC24HJ128GP306T-I/PT profile. The dual UART, dual SPI, and I2C interfaces support simultaneous Modbus, BACnet, and sensor-bus traffic. The 128 KB Flash fits full protocol stacks, and the 53 I/O lines drive relays, TRIACs, and keypad matrices. Industrial -40C to +85C temperature grade tolerates unconditioned plant-room environments without derating.
Recommended
Medical Patient Monitoring
Patient monitors (SpO2, ECG, NIBP) leverage the PIC24HJ128GP306T-I/PT's 16-channel ADC and DSP-grade MAC for real-time biosignal filtering. The 40 MIPS throughput is sufficient for FIR/IIR filtering of ECG waveforms and FFT heart-rate extraction. While not AEC-Q100 qualified (use AEC-Q100 PIC variants for automotive-grade), the industrial -40C to +85C range is suitable for IEC 60601-1-compliant medical device housings. The 128 KB Flash supports full USB device firmware for bedside data transfer.
Recommended
Automotive Body and Infotainment
For body controllers, HVAC panels, and entry-level infotainment HMI, the PIC24HJ128GP306T-I/PT provides automotive-relevant LINbus support and ample Flash for graphics libraries. The 53 I/O pins drive keypad backlighting, segment-LCD glass, and CAN/LIN transceivers. While the industrial temperature grade (-40C to +85C) covers many cabin applications, AEC-Q100-qualified PIC24 variants are recommended for under-hood use. The DSP-MAC helps with audio DSP preprocessing at 40 MIPS.
Recommended
Graphics HMI Panels
The PIC24HJ128GP306T-I/PT drives segment-LCD or small TFT HMI panels via its parallel master port and high-speed SPI. 128 KB Flash accommodates Microchip's graphics library plus customer UI assets, while 16 KB RAM holds the framebuffer for QVGA (320x240) panels. The 53 I/O lines connect to touch-screen controllers, rotary encoders, and backlight drivers. With 40 MIPS, the MCU redraws 30 fps graphics while servicing UART commands from a host PLC.
Recommended
Sensor Fusion and IoT Edge Nodes
The PIC24HJ128GP306T-I/PT acts as an IoT edge node aggregating I2C sensors (temperature, humidity, motion) and pushing pre-processed data over UART/Wi-Fi/BLE bridges. The 16-channel ADC handles multiple analog transducers, while 128 KB Flash hosts small MQTT/TLS stacks or LoRaWAN MAC layers. With 16 KB RAM and DMA, the MCU performs sensor fusion (Kalman filter basics) at 40 MIPS without burdening the core. Industrial temperature grade suits outdoor enclosures.
Recommended
Recommended Products Summary
Engineering reference data for PIC24HJ128GP306T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24HJ128GP306-I/PT | PIC24HJ128GP306A-I/PT | PIC24HJ128GP310-I/PT | PIC24HJ128GP206A-I/PT | PIC24HJ128GP210-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Core Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Program Memory (Flash) | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB (-50%) | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB (-50%) | 16 KB |
| USB OTG | No | No | No | Yes (USB 2.0 FS OTG) | No | Yes (USB 2.0 FS OTG) |
| CAN | No | No | No | No | No | Yes |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| Pin Count | 64 | 64 | 64 | 64 | 64 | 64 |
| 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 |
Key Differentiators
- Identical silicon to GP306-I/PT with tape-and-reel packaging (vs PIC24HJ128GP306-I/PT)
- Adds USB 2.0 FS OTG in the same 64-TQFP package (vs PIC24HJ128GP310-I/PT)
- Half the Flash and RAM of GP306 (vs PIC24HJ128GP206A-I/PT)
- Same 40 MIPS performance, no USB controller overhead (vs PIC24HJ128GP210-I/PT)
Design Notes
Place 100 nF ceramic decoupling capacitors as close as possible to every VDD pin (64-TQFP package has multiple VDD/VSS pairs: pins 15, 33, 63 for VDD; pins 16, 34, 64 for VSS). Add a bulk 10 uF tantalum or aluminum polymer capacitor near the MCU. AVDD (pin 5) should be filtered with a ferrite bead and decoupled separately for ADC accuracy. Brown-out reset is enabled by default - leave it on to guarantee clean startup at 3.0 V.
PIC24HJ128GP306 has limited Flash endurance - the device datasheet guarantees only 1000 erase/write cycles minimum. Avoid using ICSP self-programming in production firmware unless you implement wear-leveling or external EEPROM. Use one of the two PGECx/PGEDx pairs (RB6/RB7 or alternate) for in-circuit serial programming and ensure no strong pull-ups on these pins during reset. Always select the correct ICSP pair for your debugger (PICkit, ICD, MPLAB Snap).
Route the 40 MHz oscillator traces (RA6/OSC2, RA7/OSC1) with short, symmetric lengths and guard them with a ground pour to avoid radiating harmonics. Keep ADC analog inputs (RA0-RA5) away from switching nodes and PWM outputs (RE/RC pins). For motor-control PCB layouts, place the gate-driver and shunt resistors at the board edge and use a star-ground topology connecting AGND and DGND at one point near the MCU AVDD pin. The 64-TQFP exposed thermal pad (if present in this package variant) should be soldered to a copper pour for thermal relief.
When using the SPI peripheral at 10 MHz+, add 33 ohm series resistors near the MCU pins to dampen ringing on long PCB traces (>50 mm). For UART lines exceeding 115200 baud, ensure the baud-rate error is below 2% by using the 40 MHz system clock with the high-speed baud-rate generator (BRGH=1). The CTMU peripheral for capacitive touch needs a 100 nF filter on its reference voltage pin to maintain ADC-less touch accuracy.
Compliance Information
Industrial temperature grade (-40C to +85C). Not AEC-Q100 qualified - choose AEC-Q100 PIC24 variants for automotive. RoHS compliance per Microchip product page. Halogen-free status not stated in verified web data.
