DSPIC33FJ64GP306T-I/PT - 16-Bit 40 MIPS DSC 64KB Flash | Microchip
MPN: DSPIC33FJ64GP306T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.99 | $5.99 |
| 10 | $5.49 | $54.90 |
| 100 | $5.1 | $510.00 |
| 500 | $4.8 | $2,400.00 |
| 1,000 | $4.55 | $4,550.00 |
DSPIC33FJ64GP306T-I/PT Overview
A Digital Signal Controller blends the control peripherals of a microcontroller with the math engine of a DSP in a single chip. Within the power-management hierarchy of embedded processors, the DSC sits between a standard MCU and a dedicated DSP: the dsPIC33F family descends from the PIC24 MCU core and the 30 MIPS dsPIC30F family, offering seamless migration options to PIC24 MCUs and dsPIC30F DSCs in similar packages.
Key features include the 16-bit modified Harvard architecture running at 40 MIPS from a 40 MHz clock, on-chip Flash program memory with self-programming capability, DSP engine with single-cycle MAC and dual 40-bit accumulators, and In-Circuit Serial Programming (ICSP) support via PGECx/PGEDx pins. The GP (general purpose) peripheral set includes multiple UARTs, SPI and I2C ports, ADC channels, output-compare and input-capture channels, and motor-control PWM capability.
Technically, the device executes most instructions in a single cycle and supports C compilation through the Microchip XC16 toolchain, with debugging via in-circuit emulation through the PGECx/PGEDx pins. The TQFP-64 10x10 mm body provides a 0.5 mm lead pitch suitable for standard SMT assembly.
Typical applications include motor control and power conversion, digital power supplies, industrial automation, sensor signal processing, and general-purpose embedded systems that need DSP math without a separate DSP chip.
For design, keep the 3.3V rail within the 3.0V to 3.6V window, decouple all VDD/AVDD pairs locally, and reserve one PGECx/PGEDx pair for programming and debug access.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64GP306T-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 DSPIC33FJ64GP306T-I/PT (same form factor and footprint) — differing in Operating Temperature, Packaging, Supply Voltage, Package, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64GP306A-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64GP306AT-I/PT
✅ Drop-In✓ In Stock
$4.24 / Unit
View Datasheet →DSPIC33FJ64GP206T-I/PT
✅ Drop-In✓ In Stock
$4.18 / Unit
View Datasheet →DSPIC33FJ128GP306A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ256GP506AT-I/PT
✅ Drop-In✓ In Stock
$4.95 / Unit
View Datasheet →DSPIC33FJ64GP306T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC |
| Performance | 40 MIPS |
| Clock Speed | 40 MHz |
| Program Memory | 64KB (64K x 8) Flash |
| Supply Voltage | 3.0 V to 3.6 V |
| I/O Ports | 21 |
| Package | 64-TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Programming Interface | ICSP via PGECx/PGEDx pins |
| Family Migration | Seamless migration to PIC24 MCU and dsPIC30F DSC |
| Memory Type (ROM) | Flash |
| Life Cycle Stage | ACTIVE |
| Communication Interfaces | UART, SPI, I2C (per dsPIC33FJXXXGPX06/X08/X10 family datasheet) |
| RoHS / Lead-Free | Lead-free package (QFNL/PLASTIC, lead free per datasheet listing) |
DSPIC33FJ64GP306T-I/PT Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive voltage reference |
| Pin 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative voltage reference |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select |
| Pin 5 | AN3/INDX/CN5/RB3 — Analog input 3 / encoder index |
| Pin 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / encoder A / input capture 7 |
| Pin 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / encoder B / input capture 8 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI — Oscillator crystal input / external clock input |
| Pin 10 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output / port RC15 |
| Pin 11 | VDD — Power supply (3.0V to 3.6V) |
| Pin 12 | RF2/SDI1 — Port RF2 / SPI1 data input |
| Pin 13 | RF3/SDO1 — Port RF3 / SPI1 data output |
| Pin 14 | RF4/U1RX — Port RF4 / UART1 receive |
| Pin 15 | RF5/U1TX — Port RF5 / UART1 transmit |
| Pin 16 | VSS — Ground reference |
| Pin 17 | VDD — Power supply |
| Pin 18 | RG8/SOSCI — Port RG8 / secondary oscillator input |
| Pin 19 | RG7/SOSCO — Port RG7 / secondary oscillator output |
| Pin 20 | RF6/SCK1OUT — Port RF6 / SPI1 clock output |
| Pin 21 | RF7/SCK1IN — Port RF7 / SPI1 clock input |
| Pin 22 | RF8/U1RTS — Port RF8 / UART1 request-to-send |
| Pin 23 | RG2/U2TX — Port RG2 / UART2 transmit |
| Pin 24 | RG3/U2RX — Port RG3 / UART2 receive |
| Pin 25 | VDD — Power supply |
| Pin 26 | VSS — Ground reference |
| Pin 27 | RG0/PWM2H — Port RG0 / PWM output 2H |
| Pin 28 | RG1/PWM2L — Port RG1 / PWM output 2L |
| Pin 29 | AN6/OCA/RB6 — Analog input 6 / output compare A |
| Pin 30 | AN7/OCB/RB7 — Analog input 7 / output compare B |
| Pin 31 | AN8/OC1/RB8 — Analog input 8 / output compare 1 |
| Pin 32 | AN9/OC2/RB9 — Analog input 9 / output compare 2 |
| Pin 33 | AN10/T2CK/RB10 — Analog input 10 / Timer2 external clock |
| Pin 34 | AN11/T3CK/RB11 — Analog input 11 / Timer3 external clock |
| Pin 35 | VSS — Ground reference |
| Pin 36 | VDD — Power supply |
| Pin 37 | AN12/PWM1L1/RB12 — Analog input 12 / PWM output 1L1 |
| Pin 38 | AN13/PWM1H1/RB13 — Analog input 13 / PWM output 1H1 |
| Pin 39 | AN14/PWM1L2/RB14 — Analog input 14 / PWM output 1L2 |
| Pin 40 | AN15/PWM1H2/RB15 — Analog input 15 / PWM output 1H2 |
| Pin 41 | AVSS — Analog ground reference |
| Pin 42 | AVDD — Analog power supply |
| Pin 43 | RE0/CN14/PWM1L3 — Port RE0 / PWM output 1L3 |
| Pin 44 | RE1/CN15/PWM1H3 — Port RE1 / PWM output 1H3 |
| Pin 45 | RE2/CN16/PWM1L4 — Port RE2 / PWM output 1L4 |
| Pin 46 | RE3/CN17/PWM1H4 — Port RE3 / PWM output 1H4 |
| Pin 47 | RE4/CN18/U2RX — Port RE4 / UART2 receive (alternate) |
| Pin 48 | RE5/CN19/U2TX — Port RE5 / UART2 transmit (alternate) |
| Pin 49 | RE6/CN20/OC8 — Port RE6 / output compare 8 |
| Pin 50 | RE7/CN21/UPDN — Port RE7 / counter up-down control |
| Pin 51 | RE8/FLTA — Port RE8 / PWM fault A input |
| Pin 52 | RE9/FLTB — Port RE9 / PWM fault B input |
| Pin 53 | VSS — Ground reference |
| Pin 54 | VDD — Power supply |
| Pin 55 | PGD2/RF13 — Port RF13 / ICSP debug data channel 2 |
| Pin 56 | PGC2/RF12 — Port RF12 / ICSP debug clock channel 2 |
| Pin 57 | RF0/EMD0 — Port RF0 / external memory data 0 |
| Pin 58 | RF1/EMD1 — Port RF1 / external memory data 1 |
| Pin 59 | VDD — Power supply |
| Pin 60 | VSS — Ground reference |
| Pin 61 | PGEC1/RC13 — Port RC13 / ICSP debug clock channel 1 |
| Pin 62 | RC3/T1CK — Port RC3 / Timer1 external clock |
| Pin 63 | RC4/IC1 — Port RC4 / input capture 1 |
| Pin 64 | PGED1/RC12 — Port RC12 / ICSP debug data channel 1 |
Typical Applications
DSPIC33FJ64GP306T-I/PT is suitable for 6 applications: Digital Motor Control, Digital Power Supplies, Industrial Automation and PLC I/O, Sensor Signal Processing, Embedded Communication Nodes, General-Purpose Embedded Control.
Digital Motor Control
The DSPIC33FJ64GP306T-I/PT fits digital motor control because its 16-bit DSP engine executes single-cycle MAC operations at 40 MIPS, fast enough for current-loop and speed-loop control at typical PWM switching frequencies. The GPX06 family provides PWM-related outputs, output-compare channels, and input-capture channels for rotor-position decoding from encoder or hall signals. In a typical topology, the DSC runs the FOC or trapezoidal control loop while PWM peripherals drive the inverter bridge; the 64KB Flash holds the control firmware with headroom for communication stacks. Performance consideration: at large inverter loads, budget CPU cycles so the control ISR completes well within one PWM period.
Recommended
Digital Power Supplies
The DSPIC33FJ64GP306T-I/PT suits switch-mode power supply control: its 40 MIPS 16-bit core closes voltage- and current-mode loops with fast ADC sampling and comparator-based protection, while the 3.0V-3.6V supply simplifies rail architecture from an auxiliary bias supply. In a typical LLC or buck design, the DSC reads output voltage and current, computes the compensation law with DSP math, and modulates the PWM stage; input-capture channels measure frequency and phase for resonant converters. A quantified benefit is software-defined compensation - loop response is tunable in firmware without hardware redesign, at the cost of careful ISR latency budgeting.
Recommended
Industrial Automation and PLC I/O
In industrial automation nodes, the DSPIC33FJ64GP306T-I/PT acts as an intelligent I/O controller: 21 I/O ports across the 64-TQFP handle digital inputs, relay outputs, and sensor interfaces, while UART, SPI, and I2C links communicate with gateways. The 40 MIPS core filters sensor data with DSP instructions before transmission, and the industrial temperature option (suffix -I) supports cabinet environments. Running Modbus over UART is a common pattern; the 64KB Flash stores the protocol stack plus application logic. Benefit: single-chip integration reduces BOM versus MCU-plus-DSP split designs, with migration headroom to PIC24 MCUs if the application later drops DSP math.
Recommended
Sensor Signal Processing
The DSPIC33FJ64GP306T-I/PT is well matched to sensor front ends because its on-chip ADC samples analog sensor outputs and the DSP engine applies FIR/IIR filtering, FFT, and calibration math in real time at 40 MIPS. Typical roles include vibration monitoring, load-cell conditioning, and acoustic analysis, where input-capture channels timestamp events and output-compare channels generate stimulus. In a typical design the sensor connects to an analog channel through conditioning circuitry; the DSC performs filtering and feature extraction, then ships results over UART/SPI. The quantified benefit is eliminating an external DSP or FPGA in sub-MIPS-class signal chains, reducing board area and cost.
Recommended
Embedded Communication Nodes
For embedded communication nodes, the DSPIC33FJ64GP306T-I/PT provides multiple UARTs plus SPI and I2C from the GPX06 peripheral set, letting one chip bridge field buses, panel displays, and radio modules. The 40 MIPS core runs protocol stacks (Modbus, custom framing) concurrently with local control tasks, and 64KB Flash accommodates stack plus application firmware. A common architecture places this DSC between a host controller and analog/digital periphery, handling protocol translation and pre-processing. The -I industrial temperature rating and 3.3V operation suit DIN-rail and panel equipment; the main trade-off is confirming Flash sizing before adding security or OTA-update code.
Recommended
General-Purpose Embedded Control
As a general-purpose controller, the DSPIC33FJ64GP306T-I/PT covers consumer and instrumentation boards needing more math horsepower than a PIC18 but without 32-bit cost: home appliances, chargers, test fixtures, and HID devices. The 16-bit core at 40 MIPS executes application logic and DSP assists (filtering, tone generation) from a single 64KB Flash image, with 21 I/O ports handling buttons, LEDs, and actuators on the 64-TQFP. ICSP via PGECx/PGEDx enables in-field firmware updates with a programmer such as PICkit. The seamless migration path to PIC24 MCUs means designs can scale up without board redesign when requirements grow.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64GP306T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64GP306A-I/PT | DSPIC33FJ64GP206T-I/PT | DSPIC33FJ256GP506AT-I/PT |
|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Performance | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS |
| Program Memory (Flash) | 64KB | 64KB | 64KB | 256KB |
| 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 |
| Life Cycle Stage | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Pin-to-Pin Compatibility | Reference (GPX06 footprint) | Pin-to-pin identical | Same footprint, GP206 peripheral map | Pin-to-pin, GPX06A family |
| Packaging Flow | Tape & Reel (T suffix) | Tray | Tape & Reel | Tape & Reel |
Key Differentiators
- Base-generation silicon for proven designs (vs DSPIC33FJ64GP306A-I/PT)
- Full GP peripheral map in 64 pins (vs DSPIC33FJ64GP206T-I/PT)
- 64KB Flash balances cost vs firmware size (vs DSPIC33FJ256GP506AT-I/PT)
Design Notes
Supply the DSPIC33FJ64GP306T-I/PT from a regulated 3.3V rail that stays within the 3.0V-3.6V datasheet window under all conditions, including brownout transients. Decouple every VDD pin (pins 11, 17, 25, 36, 54, 59) with a local 100 nF ceramic placed within 2 mm of the pin, plus at least one 10 uF bulk capacitor per board region. Power AVDD (pin 42) from the same rail through an RC or ferrite filter to protect ADC accuracy; connect AVSS (pin 41) directly to a clean analog ground node.
Reserve one PGECx/PGEDx pair (pins 64/61 or 55/56) with a 5-pin header (MCLR, VDD, GND, PGD, PGC) for ICSP programming and debugging with Microchip tools such as PICkit or ICD. Do not load these pins with strong pull-downs or LEDs that fight the programmer. The 64-TQFP 0.5 mm pitch requires solder-mask-defined pads per IPC-7351 footprint conventions - verify your CAD footprint against the Microchip landing pattern before release.
Nearly every pin on the GP306 is multiplexed across analog, digital, and peripheral functions; forgetting to configure a pin from analog (reset default for ANx pins) to digital is the most common first-boot failure - analog-capable pins read as 0 digitally until cleared in AD1PCFGL. Additionally, use 1% crystals with correct load capacitors on OSC1/OSC2 (pins 9/10), and keep the 64KB Flash budget in mind: adding a bootloader and communications stack can consume 16-20KB, so verify headroom before selecting this part over the 256KB GP506 variant.
Keep the primary oscillator traces (OSC1/OSC2) short (under 15 mm), guard them with ground, and route them away from PWM and UART switching signals to prevent jitter that degrades ADC sampling and UART timing at 40 MIPS operation. For boards driving motor PWM outputs, add series resistors (22-100 ohm) at gate-driver outputs to control ringing, and route PWM and fault inputs (FLTA/FLTB on pins 51/52) as short, clean traces since false fault trips can shut down the bridge unexpectedly.
Compliance Information
Datasheet listing identifies the package as lead-free plastic (QFNL/PLASTIC, LEAD FREE). RoHS compliance is consistent with current Microchip production but not explicitly stated in the provided snippets.
