DSPIC33FJ64GP310T-I/PT - 16-bit DSC 40 MIPS 64KB Flash | Microchip
MPN: DSPIC33FJ64GP310T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.9 | $8.90 |
| 10 | $8.01 | $80.10 |
| 100 | $6.85 | $685.00 |
| 500 | $6.23 | $3,115.00 |
| 1,000 | $5.78 | $5,780.00 |
DSPIC33FJ64GP310T-I/PT Overview
A digital signal controller combines the deterministic control of a microcontroller with the mathematical throughput of a DSP. Within the embedded hierarchy, the dsPIC33F family sits between general-purpose MCUs and dedicated DSPs: it executes a modified Harvard, C-compiler-friendly 16-bit instruction set with DSP-engine extensions such as single-cycle MAC, dual operand fetch, and hardware division, making it a natural choice where control loops and signal processing coexist in one chip.
Key features of this device include its 40 MIPs instruction throughput at 3.3V, 64KB self-programming FLASH with ECC-free typical endurance, 16KB on-chip RAM for data-heavy DSP routines, and 32 channels of 10-bit/12-bit analog-to-digital conversion. Communication peripherals cover I2C, SPI, UART/USART, IrDA, and LINbus, with AC'97 audio support and brown-out detect/reset for system robustness.
Architecturally, the dsPIC33F core pairs a 16-bit pipelined datapath with a dedicated DSP engine, X and Y data memory buses, and a PLL-based clock system that permits low-cost crystal operation while multiplying up to the 40 MIPS ceiling. Seamless migration options to PIC24F, PIC24H MCUs, and dsPIC30F DSCs in similar packages protect long-term code investment.
Typical applications include motor control and power conversion, digital power supplies, industrial automation nodes, and sensor-signal processing where the 12-bit ADC and DSP engine filter and analyze inputs in real time.
Design consideration: keep the 3.0V to 3.6V supply rail within tolerance and decouple all VDD/VDDCORE pairs with low-ESR ceramics placed close to the TQFP; use the internal 2.5V regulator output pin per the manufacturer datasheet guidance.
This page synthesizes distributor availability, drop-in alternatives, and engineering design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64GP310T-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 DSPIC33FJ64GP310T-I/PT (same form factor and footprint) — differing in Package, Core Architecture, ADC, Operating Temperature, RAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64GP310-I/PT
✅ Drop-In✓ In Stock
$5.48 / Unit
View Datasheet →DSPIC33FJ64GP310T-I/PF
✅ Drop-In✓ In Stock
$6.54 / Unit
View Datasheet →DSPIC33FJ128GP310A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64GP310A-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.75 / Unit
View Datasheet →DSPIC33FJ256GP510T-I/PT
✅ Drop-In✓ In Stock
$6.95 / Unit
View Datasheet →DSPIC33FJ256GP510T-I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64GP310T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC (RISC with DSP engine) |
| Performance | 40 MIPs |
| Clock Speed | 40 MHz |
| Program Memory | 64KB (64K x 8) FLASH |
| RAM | 16KB |
| Supply Voltage | 3 V to 3.6 V |
| ADC | 32 channels, 10-bit/12-bit |
| Connectivity | I2C, SPI, UART/USART, IrDA, LINbus |
| Audio Interface | AC'97 |
| System Features | Brown-out Detect/Reset, PWM |
| I/O Ports | 21 ports |
| Package | 100-TQFP (12x12 mm), PT suffix |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Packaging | Tape & Reel (T suffix) |
| ROM Type | Flash |
| Life Cycle Stage | Active |
DSPIC33FJ64GP310T-I/PT 100-tqfp (12x12 mm), pt suffix Pin Configuration Guide
Pin configuration for DSPIC33FJ64GP310T-I/PT (100-tqfp (12x12 mm), pt suffix package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33FJ64GP310T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64GP310T-I/PT is suitable for 6 applications: Industrial Motor Control, Digital Power Supplies and Converters, Sensor Signal Acquisition and Processing, Automotive and LIN Bus Networking Nodes, Audio Processing and AC'97 Interfaces, Embedded Industrial Control and Automation.
Industrial Motor Control
The DSPIC33FJ64GP310T-I/PT fits industrial motor drives because its 40 MIPs core executes field-oriented control (FOC) loops at the speeds demanded by PMSM and induction motors, while the on-chip DSP engine performs single-cycle multiply-accumulate for Clarke and Park transforms. The 32-channel 12-bit ADC samples phase currents and DC bus voltage synchronously with PWM edges, minimizing measurement latency that would otherwise degrade torque control bandwidth. In a typical topology, the DSC generates complementary PWM pairs with dead-time control feeding a three-phase inverter, reads current shunts via the ADC, and closes current/speed loops in firmware. Using the 64KB FLASH part keeps the control firmware cost-optimized; the 16KB RAM holds lookup tables and state variables with headroom for higher-order observers.
Recommended
Digital Power Supplies and Converters
Switching power converters benefit directly from the DSPIC33FJ64GP310T-I/PT's combination of fast ADC, PWM peripherals, and DSP math. Voltage- and current-mode compensation loops implemented in firmware achieve bandwidths impossible on slower MCUs because the 40 MIPs core completes the compensator calculation within one switching period. The 12-bit, 32-channel ADC digitizes output voltage, input voltage, and temperature simultaneously, while brown-out detect/reset protects the controller during input sags. The part's 3.0V to 3.6V rail simplifies biasing from standard auxiliary supplies. Designers typically place the DSC between the feedback divider and the gate-driver stage; the trade-off versus an analog controller is firmware development effort, repaid by programmability, adaptive algorithms, and digital communication for telemetry across I2C, SPI, or UART/LIN interfaces.
Recommended
Sensor Signal Acquisition and Processing
Multi-channel sensor systems exploit the DSPIC33FJ64GP310T-I/PT's 32-channel, 10-bit/12-bit ADC and on-chip DSP engine. In a typical industrial data-acquisition node, up to 32 sensor inputs - thermistors, pressure bridges, or current sensors - are multiplexed into the ADC, then filtered in firmware using single-cycle MAC operations implementing FIR or IIR algorithms. The 16KB RAM buffers sample blocks, and the UART/SPI/I2C peripherals stream processed data to a host or gateway; IrDA and LINbus support enables optical and automotive-networked variants. The 100-TQFP pin count supplies ample I/O across 21 ports for mux control and per-sensor enable lines. Choosing the 64KB FLASH variant balances cost against algorithm storage; code can migrate seamlessly to the pin-compatible 128KB/256KB siblings if analytics grow.
Recommended
Automotive and LIN Bus Networking Nodes
The DSPIC33FJ64GP310T-I/PT serves automotive-adjacent and industrial network nodes through its LINbus and IrDA-capable UART peripherals, 3.3V noise-resilient operation, and brown-out detect/reset that safeguards firmware state during cranking-style voltage dips. The -40C to +85C industrial temperature grade covers under-hood-adjacent and harsh-environment enclosures. A typical node reads analog sensors through the 12-bit ADC, executes local control logic at 40 MIPs, and reports over LIN to a body controller or gateway ECU. The 100-TQFP footprint provides enough GPIO for switch matrices, indicator drives, and actuator interfaces across 21 I/O ports. For designs needing larger firmware - for example a full LIN 2.x stack plus diagnostics - the pin-compatible DSPIC33FJ256GP510T-I/PT is a drop-in upgrade requiring no PCB rework.
Recommended
Audio Processing and AC'97 Interfaces
With its AC'97 audio interface and DSP engine, the DSPIC33FJ64GP310T-I/PT implements audio front-end and effect-processing functions in cost-sensitive equipment. The AC'97 peripheral links directly to codec chips, while single-cycle MAC instructions execute sample-rate mixing, filtering, and gain staging in firmware. The 12-bit ADC can digitize auxiliary analog inputs such as microphone bias monitoring or control potentiometers across 32 channels, and UART/I2C handle host communication and codec configuration. The 16KB RAM accommodates audio buffering blocks and filter state. Typical products include intercom panels, PA controllers, and kiosk audio subsystems where a dedicated audio DSP is cost-prohibitive. Designers should budget FLASH carefully: the 64KB part suits fixed-effect firmware, whereas complex multi-band processing may warrant the pin-compatible 128KB or 256KB family members.
Recommended
Embedded Industrial Control and Automation
General industrial automation controllers use the DSPIC33FJ64GP310T-I/PT as the main control processor where deterministic timing, analog measurement, and fieldbus connectivity converge. The 40 MIPs core runs PID loops for process control, the 12-bit ADC reads transmitters and setpoint potentiometers, and UART/SPI/I2C connect to HMIs, EEPROMs, and higher-level PLCs. Brown-out detect/reset plus self-programming FLASH enable safe power-fail parameter retention. The 100-TQFP package's 21 I/O ports drive relays, read limit switches, and interface encoders without external glue logic, reducing BOM count. The industrial -40C to +85C grade suits unconditioned factory floors. For OEMs standardizing on one footprint, the pin-compatible 64GP310/128GP310A/256GP510 family lets one PCB serve multiple product tiers by swapping only the MCU - a significant manufacturing simplification.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64GP310T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64GP310-I/PT | DSPIC33FJ64GP310T-I/PF | DSPIC33FJ128GP310A-I/PT | DSPIC33FJ256GP510T-I/PT |
|---|---|---|---|---|---|
| Package | 100-TQFP (12x12 mm), /PT tape-and-reel | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same (tray) | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (FLASH) | 64KB (64K x 8) | 64KB | 64KB | 128KB | 256KB |
| Performance | 40 MIPs (40 MHz) | 40 MIPs | 40 MIPs | 40 MIPs | 40 MIPs |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| ADC | 32 ch, 10-bit/12-bit | 32 ch, 10-bit/12-bit | 32 ch, 10-bit/12-bit | 32 ch, 10-bit/12-bit | 32 ch, 10-bit/12-bit |
| Connectivity | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART, IrDA, LINbus |
| Packaging / Packing | Tape & Reel (T) | Tray (no T suffix) | Tape & Reel, tray packing (PF) | Tape & Reel (T) | Tape & Reel (T) |
Key Differentiators
- Cost-optimized 64KB memory point in a 100-pin footprint (vs DSPIC33FJ256GP510T-I/PT)
- 32-channel 10/12-bit ADC on-chip (vs DSPIC33FJ64GP206T-I/PT)
- DSP engine with single-cycle MAC at 40 MIPs (vs DSPIC33FJ32GS608-50I/PT)
Design Notes
Supply the DSPIC33FJ64GP310T-I/PT from a clean 3.0V to 3.6V rail (nominal 3.3V). The core voltage is generated by the internal regulator, so the VDDCORE/VDDCAP pin requires the datasheet-specified low-ESR capacitor to ground for regulator stability - never omit it. Decouple every VDD pin pair on the 100-TQFP with 0.1uF ceramics placed within 2 mm of the pin, plus at least one bulk 10uF capacitor per power domain. Consult the electrical characteristics tables in the manufacturer datasheet for exact capacitor values and regulator output requirements.
The 100-TQFP (12x12 mm) 0.5 mm pitch leads require a well-defined solder-mask-defined land pattern per the manufacturer datasheet mechanical drawing; verify the footprint against the latest revision before release. Route the crystal and PLL clock lines short and away from the 32 ADC channels, guarding the analog section with a quiet ground region. Provide an ICSP header (MCLR, VDD, GND, PGD, PGC) for in-circuit programming with MPLAB ICD/PICkit/REAL ICE tools. Keep MCLR pulled up through the datasheet-recommended resistor for reliable reset behavior.
The I-grade device is rated -40C to +85C ambient - do not assume automotive AEC-Q100 qualification; verify your thermal environment separately. Firmware developers must account for the 3.0-3.6V-only supply: this is not a 2.0-3.6V wide-voltage part, and 5V I/O requires level shifting. When migrating to the pin-compatible 128KB/256KB family members, check the 'A'-revision errata differences and configuration-word defaults. Ordering codes matter: /PT is tape-and-reel while /PF is tray - specifying the wrong suffix disrupts automated assembly lines.
Compliance Information
RoHS/REACH/lead-free status not stated in the provided verified web data; verify against the Microchip product page. The /PT package is the standard commercial/industrial grade; no AEC-Q100 automotive variant is indicated for this MPN in the provided data.
