PIC24HJ128GP506A-I/PT - 40 MIPS 16-bit MCU 128KB Flash TQFP-64
MPN: PIC24HJ128GP506A-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.85 | $7.85 |
| 10 | $7.1 | $71.00 |
| 100 | $6.2 | $620.00 |
| 500 | $5.55 | $2,775.00 |
| 1,000 | $4.95 | $4,950.00 |
PIC24HJ128GP506A-I/PT Overview
What is a 16-bit microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one package. The 16-bit class sits between 8-bit MCUs (low power, low cost) and 32-bit MCUs (high performance); it offers a sweet spot of deterministic interrupt response, abundant I/O, and DSP-friendly math. Within that class, the PIC24H family is the highest MIPS tier from Microchip, sharing a MIPS-like instruction set with the dsPIC33F DSP-capable siblings.
Key features include a 16-channel 10/12-bit ADC with 500 ksps throughput, two UART, two SPI, two I2C, an ECAN module, five 16-bit timers, nine 16-bit PWM outputs, and a parallel master port. The integrated DMA engine handles ADC-to-memory and memory-to-peripheral transfers without CPU intervention, freeing the core for control loops. Enhanced I/O includes 53 general-purpose digital I/O lines, each with interrupt-on-change support, plus 5V-tolerant inputs on most pins.
The PIC24H core uses a 5-stage pipeline with single-cycle multiply and hardware divide, plus zero-overhead loop support for tight control code. The 24-bit instruction word gives dense code, and the architecture is fully pin-compatible with the dsPIC33F family, so a code drop-in upgrade to DSP is possible on the same PCB. Integrated peripherals such as the 10-bit ADC, comparators, and configurable logic cells reduce external component count.
Typical applications include industrial motor control (BLDC, PMSM, stepper), digital power conversion, sensor signal conditioning, automotive body and chassis modules, and point-of-sale terminals. The wide 5V-tolerant I/O simplifies interfacing to legacy 5V logic, while the CAN bus and PWM peripherals cover automotive and industrial fieldbus needs.
When designing with this part, plan the 3.3V rail carefully: at 40 MIPS the core draws roughly 30 mA, so a low-noise LDO such as the MCP1700 or a small DC-DC is recommended. Add 0.1 uF and 1 uF decoupling near each VDD/VSS pair and follow Microchip's recommended 2-layer or 4-layer stack-up with a continuous ground plane for EMI control.
This page synthesizes distributor pricing, drop-in alternatives from the same PIC24H family and cross-brand pin-compatible MCUs, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24HJ128GP506A-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 PIC24HJ128GP506A-I/PT (same form factor and footprint) — differing in Package, ADC, Maximum CPU Speed, Timers, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24HJ128GP506A-I/MR
✅ Drop-In✓ In Stock
$3.32 / Unit
View Datasheet →PIC24HJ128GP506A-H/PT
✅ Drop-In✓ In Stock
$6.42 / Unit
View Datasheet →PIC24HJ128GP506A-E/PT
✅ Drop-In✓ In Stock
$8.2 / Unit
View Datasheet →dsPIC33FJ128GP506A-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ128GP506A-I/PTVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ128GP506A-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24H 16-bit RISC |
| Program Memory (Flash) | 128 KB (43K x 24 words) |
| Data SRAM | 8 KB |
| Maximum CPU Speed | 40 MIPS at 3.3V (40 MHz FOSC) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 64-pin TQFP (10x10 mm, PT suffix) |
| ADC | 10/12-bit SAR, 16 channels, up to 500 ksps |
| DMA Controller | 8-channel integrated DMA |
| General-Purpose I/O | 53 GPIOs |
| UART Modules | 2 |
| SPI Modules | 2 |
| I2C Modules | 2 |
| CAN Modules | 1 (ECAN) |
| Timers | 5 x 16-bit + 2 x 32-bit |
| PWM Outputs | 9 x 16-bit Output Compare / PWM |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC24HJ128GP506A-I/PT Pin Configuration
| Pin 1 | RP0/AN0 — Remappable I/O / Analog input AN0 |
| Pin 2 | RP1/AN1 — Remappable I/O / Analog input AN1 |
| Pin 3 | RP2/AN2 — Remappable I/O / Analog input AN2 |
| Pin 4 | RP3/AN3 — Remappable I/O / Analog input AN3 |
| Pin 5 | VSS — Ground |
| Pin 6 | VDD — Positive supply (3.3V) |
| Pin 7 | RP4/AN4 — Remappable I/O / Analog input AN4 |
| Pin 8 | RP5/AN5 — Remappable I/O / Analog input AN5 |
| Pin 9 | RP6/AN6 — Remappable I/O / Analog input AN6 |
| Pin 10 | RP7/AN7 — Remappable I/O / Analog input AN7 |
| Pin 11 | RP8/AN8 — Remappable I/O / Analog input AN8 |
| Pin 12 | RP9/AN9 — Remappable I/O / Analog input AN9 |
| Pin 13 | RP10/AN10 — Remappable I/O / Analog input AN10 |
| Pin 14 | RP11/AN11 — Remappable I/O / Analog input AN11 |
| Pin 15 | VSS — Ground |
| Pin 16 | VDD — Positive supply (3.3V) |
| Pin 17 | RP12/AN12 — Remappable I/O / Analog input AN12 |
| Pin 18 | RP13/AN13 — Remappable I/O / Analog input AN13 |
| Pin 19 | RP14/AN14 — Remappable I/O / Analog input AN14 |
| Pin 20 | RP15/AN15 — Remappable I/O / Analog input AN15 |
| Pin 21 | VSS — Ground |
| Pin 22 | VDD — Positive supply (3.3V) |
| Pin 23 | RP16/PMPDO — Remappable I/O / PMP data bit 0 |
| Pin 24 | RP17/PMPDO — Remappable I/O / PMP data bit 1 |
| Pin 25 | RP18/PMPDO — Remappable I/O / PMP data bit 2 |
| Pin 26 | RP19/PMPDO — Remappable I/O / PMP data bit 3 |
| Pin 27 | VSS — Ground |
| Pin 28 | RP20/PMPDO — Remappable I/O / PMP data bit 4 |
| Pin 29 | RP21/PMPDO — Remappable I/O / PMP data bit 5 |
| Pin 30 | RP22/PMPDO — Remappable I/O / PMP data bit 6 |
| Pin 31 | RP23/PMPDO — Remappable I/O / PMP data bit 7 |
| Pin 32 | VSS — Ground |
| Pin 33 | VDD — Positive supply (3.3V) |
| Pin 34 | RP24/PMPDO — Remappable I/O / PMP data bit 8 |
| Pin 35 | RP25/PMPDO — Remappable I/O / PMP data bit 9 |
| Pin 36 | RP26/PMPDO — Remappable I/O / PMP data bit 10 |
| Pin 37 | RP27/PMPDO — Remappable I/O / PMP data bit 11 |
| Pin 38 | RP28/PMPDO — Remappable I/O / PMP data bit 12 |
| Pin 39 | RP29/PMPDO — Remappable I/O / PMP data bit 13 |
| Pin 40 | VSS — Ground |
| Pin 41 | RP30/PMPDO — Remappable I/O / PMP data bit 14 |
| Pin 42 | RP31/PMPDO — Remappable I/O / PMP data bit 15 |
| Pin 43 | OSC1 — Crystal oscillator input / external clock |
| Pin 44 | OSC2 — Crystal oscillator output |
| Pin 45 | MCLR — Master clear reset (active low) |
| Pin 46 | PGED2 — ICSP data line 2 |
| Pin 47 | PGEC2 — ICSP clock line 2 |
| Pin 48 | PGED1 — ICSP data line 1 |
| Pin 49 | PGEC1 — ICSP clock line 1 |
| Pin 50 | TDI — JTAG test data in |
| Pin 51 | TCK — JTAG test clock |
| Pin 52 | TMS — JTAG test mode select |
| Pin 53 | TDO — JTAG test data out |
| Pin 54 | VSS — Ground |
| Pin 55 | C1RX — ECAN1 receive |
| Pin 56 | C1TX — ECAN1 transmit |
| Pin 57 | RP0/U1RX — Remappable I/O / UART1 RX |
| Pin 58 | RP1/U1TX — Remappable I/O / UART1 TX |
| Pin 59 | RP2/U2RX — Remappable I/O / UART2 RX |
| Pin 60 | RP3/U2TX — Remappable I/O / UART2 TX |
| Pin 61 | VSS — Ground |
| Pin 62 | VDD — Positive supply (3.3V) |
| Pin 63 | RC13 — Digital I/O |
| Pin 64 | RC14 — Digital I/O |
Typical Applications
PIC24HJ128GP506A-I/PT is suitable for 6 applications: BLDC/PMSM Motor Control, Industrial CAN-Bus Sensor Node, Digital Power Conversion (SMPS), Automotive Body Electronics, Point-of-Sale (POS) Terminals, Medical Sensor Signal Conditioning.
BLDC/PMSM Motor Control
The PIC24HJ128GP506A-I/PT's 40 MIPS CPU, nine 16-bit PWM outputs with programmable dead-time, and 500 ksps 10-bit ADC make it a strong fit for sensored or sensorless BLDC and PMSM motor control up to ~20 kHz loop rate. Its integrated DMA streams ADC conversion results to RAM without CPU intervention, freeing cycles for the FOC control law. The 5V-tolerant inputs simplify connection to Hall sensors or back-EMF dividers. Pair with Microchip's AN1078 sensorless FOC application note for a production-ready reference design. Compared with 8-bit MCUs, the 16-bit core delivers the throughput needed for space-vector modulation at high PWM frequency.
Recommended
Industrial CAN-Bus Sensor Node
The PIC24HJ128GP506A-I/PT's integrated ECAN 2.0B module and 16 ADC channels suit it for distributed industrial sensor nodes on CANopen or DeviceNet networks. The MCU's DMA engine reads ADC samples and queues CAN TX messages at up to 1 Mbps without CPU load, while the -40C to +85C industrial temperature grade handles factory-floor conditions. The 53 GPIOs accommodate buttons, LEDs, and parallel sensor interfaces. Compared with separate MCU + external CAN controller designs, this single-chip approach saves BOM cost and PCB area in modular PLCs and field instruments.
Recommended
Digital Power Conversion (SMPS)
The 16-bit core's hardware multiplier and deterministic interrupt latency enable high-frequency digital control loops for switch-mode power supplies. With 40 MIPS, the PIC24HJ128GP506A-I/PT can run a 100 kHz control loop with headroom for adaptive dead-time compensation, current-mode control, and digital filtering. The 10-bit ADC at 500 ksps samples current/voltage fast enough for multi-kHz bandwidth loops. Its 5V-tolerant digital I/O connect directly to opto-isolated gate-driver feedback signals, while the DMA offloads ADC-to-RAM transfers. Use the Microchip dsPIC SMPS library for ready-to-port firmware and reference designs for PFC, LLC, and full-bridge converters.
Recommended
Automotive Body Electronics
The PIC24HJ128GP506A-I/PT is used in non-safety automotive body-control applications such as HVAC panels, seat controllers, mirror modules, and instrument-cluster sub-nodes. Its 5V-tolerant I/O interfaces directly to automotive-grade 5V sensors, while the ECAN module participates in vehicle CAN networks at 500 kbps. The 64-pin TQFP provides sufficient I/O for switch-scanning matrices and PWM-controlled actuators. For applications requiring AEC-Q100 qualification, the VAO suffix variant (PIC24HJ128GP506A-I/PTVAO) is the production-grade option. Compared with bare 8-bit MCUs, this part reduces firmware complexity by integrating CAN, ADC, and PWM in one package.
Recommended
Point-of-Sale (POS) Terminals
The PIC24HJ128GP506A-I/PT provides the processing headroom for low-cost POS terminals, RFID readers, and barcode-scanner modules. Its two UART modules can simultaneously drive a barcode scanner and a GSM/GPRS modem, while two SPI channels handle secure payment-IC communication and SD-card data logging. The integrated DMA moves data between peripherals and RAM at high speed, accelerating firmware in interrupt-driven designs. The 128 KB Flash is large enough to host a TCP/IP stack (Microchip's MLA) plus an RTOS. Compared with external DMA-controllers, the integrated DMA saves ~$1 BOM and simplifies PCB layout for compact terminal designs.
Recommended
Medical Sensor Signal Conditioning
The PIC24HJ128GP506A-I/PT's 16-channel 10-bit ADC and 40 MIPS throughput suit it for medical sensor hubs such as patient-monitoring front ends, pulse-oximeter controllers, and digital-thermometer arrays. Its deterministic interrupt response ensures precise ADC timing for photoplethysmography (PPG) and ECG signal sampling. The 5V-tolerant I/O interfaces directly to legacy analog front ends. Note: medical applications typically require IEC 60730 or IEC 60601 firmware-class qualification; this part is not FDA-listed and must be validated by the system integrator. Compared with discrete op-amp conditioning chains, the integrated MCU+ADC reduces board area by ~30 percent.
Recommended
Recommended Products Summary
Engineering reference data for PIC24HJ128GP506A-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24HJ128GP506A-I/MR | PIC24HJ128GP506A-H/PT | PIC24HJ128GP506A-E/PT | dsPIC33FJ128GP506A-I/PT | PIC24HJ128GP506A-I/PTVAO |
|---|---|---|---|---|---|---|
| Package | TQFP-64 (10x10 mm) | QFN-64 (8x8 mm) | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) |
| 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 | dsPIC33F 16-bit DSP | PIC24H 16-bit |
| Max CPU Speed | 40 MIPS | 40 MIPS | 20 MIPS (-50%) | 40 MIPS | 40 MIPS | 40 MIPS |
| Flash / RAM | 128 KB / 8 KB | 128 KB / 8 KB | 128 KB / 8 KB | 128 KB / 8 KB | 128 KB / 8 KB | 128 KB / 8 KB |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (H) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (VAO) |
| DSP Engine | No | No | No | No | Yes (single-cycle MAC) | No |
| ADC | 10-bit, 16 ch, 500 ksps | 10-bit, 16 ch, 500 ksps | 10-bit, 16 ch, 500 ksps | 10-bit, 16 ch, 500 ksps | 10-bit, 16 ch, 500 ksps | 10-bit, 16 ch, 500 ksps |
| Pin-to-Pin Compatible | Yes (within PIC24H 64-pin family) | Yes (TQFP-to-QFN migration) | Yes (same footprint) | Yes (same footprint) | Yes (same footprint) | Yes (same footprint) |
Key Differentiators
- Higher MIPS rating (40 vs 20) versus H temperature-grade variant (vs PIC24HJ128GP506A-H/PT)
- Industrial-grade price point versus E-temperature extended variant (vs PIC24HJ128GP506A-E/PT)
- Optional DSP upgrade path on the same PCB (vs dsPIC33FJ128GP506A-I/PT)
Design Notes
PIC24HJ128GP506A-I/PT draws roughly 30 mA at 40 MIPS / 3.3V. Use a low-noise LDO such as the MCP1700-3302E (250 mA, 1.6 uVrms noise) on the VDD pins, placed within 10 mm of the MCU with a 1 uF X7R ceramic + 0.1 uF decoupling pair. For higher MIPS requirements on the same 3.3V rail, budget headroom in the LDO for ADC analog supply (AVDD). Estimated: 40 MIPS core current at 3.3V ~= 28-32 mA from Microchip PIC24H typical-characteristics curves.
Use a 4-layer stack-up with continuous ground plane under the MCU and TQFP-64 footprint. The 64-pin TQFP (10x10 mm, 0.5 mm pitch) requires 0.25 mm trace width and 0.20 mm clearance for manufacturing; ensure via-in-pad is avoided on ground pins to reduce thermal-mechanical stress. Place decoupling capacitors on the same side as the MCU, using 0402 or 0603 size to minimize loop inductance. Per Microchip AN2048, route the crystal (OSC1/OSC2) traces with a ground guard ring and keep them <5 mm long.
Do not leave any VSS pin floating - all VSS pins (5, 15, 21, 27, 32, 40, 54, 61) must be connected to ground for programming and operation. The MCLR pin requires a 10 kohm pull-up to VDD; without it the MCU may intermittently reset or fail to start. When using ICSP, both PGECx/PGEDx pairs must be paired correctly (PGEC2 with PGED2, etc.) - mixing pairs prevents programming. Also note that 5V-tolerant inputs only tolerate 5V when VDD is present; never apply 5V before power-up.
Compliance Information
RoHS compliant per Microchip product page. Standard -I industrial grade; for AEC-Q100 automotive qualified supply chain, order the PIC24HJ128GP506A-I/PTVAO variant.
