DSPIC33FJ64GP310-I/PT - 16-Bit 40MIPS 64KB DSC | Microchip
MPN: DSPIC33FJ64GP310-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.32 | $8.32 |
| 10 | $7.49 | $74.90 |
| 100 | $6.65 | $665.00 |
| 500 | $6.02 | $3,010.00 |
| 1,000 | $5.48 | $5,480.00 |
DSPIC33FJ64GP310-I/PT Overview
A Digital Signal Controller (DSC) bridges the gap between a microcontroller (MCU) and a digital signal processor (DSP). Within the embedded-control hierarchy, the DSC sits above a standard PIC24 MCU and below a dedicated DSP, adding a 17-bit x 17-bit hardware multiplier, 40-bit accumulators, dual operand fetch and single-cycle MAC operations on top of a 16-bit modified Harvard core. This architecture shortens FIR/IIR filter and control-loop execution dramatically compared to software-emulated multiply on general MCUs.
Key features include 40 MIPS CPU speed at 3.0-3.6 V, 64 KB self-programmable FLASH, 16 KB RAM, in-circuit serial programming (ICSP) and debugging via any PGECx/PGEDx pin pair, plus flexible clocking with internal fast RC oscillator and PLL options that allow operation without an external crystal. The integrated high-speed ADC subsystem with multiple sample-and-hold inputs suits simultaneous motor-phase and sensor sampling.
Typical applications include digital power conversion and power-factor correction, sensorless BLDC and PMSM motor control, audio and speech signal processing, industrial sensing and instrumentation, and switch-mode power supply control, where 40 MIPS plus hardware DSP math meets tight loop-closure deadlines.
When designing with the DSPIC33FJ64GP310-I/PT, remember that it has more than one PGECx/PGEDx pin pair: any pair may be used for ICSP, but the pair must be used together (for example PGEC2 with PGED2). Confirm decoupling and trace lengths per Microchip's dsPIC33F family reference design.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64GP310-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 DSPIC33FJ64GP310-I/PT (same form factor and footprint) — differing in Package, Core Architecture, Programming Interface, Series, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64GP310A-I/PT
✅ Drop-In✓ In Stock
$4.75 / Unit
View Datasheet →DSPIC33FJ128GP310-I/PT
✅ Drop-In✓ In Stock
$4.4 / Unit
View Datasheet →DSPIC33FJ64GP310T-I/PT
✅ Drop-In✓ In Stock
$5.78 / Unit
View Datasheet →DSPIC33FJ128GP310T-I/PF
✅ Drop-In✓ In Stock
$5.95 / Unit
View Datasheet →DSPIC33FJ256GP710A-I/PT
✅ Drop-In✓ In Stock
$15.6 / Unit
View Datasheet →DSPIC33FJ64GP706A-I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$10.1 / Unit
View Datasheet →DSPIC33FJ64GP310-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC33F, 16-bit modified Harvard with DSP engine |
| CPU Speed | 40 MIPS (3.0 V to 3.6 V) |
| Program Memory (FLASH) | 64 KB (64K x 8) |
| Data RAM | 16 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature Range | -40C to +85C (Industrial) |
| Package | 100-pin TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Hardware Multiplier | 17-bit x 17-bit, single-cycle MAC |
| Accumulator | Two 40-bit |
| Programming/Debug | ICSP via PGECx/PGEDx pin pairs |
| DMA Channels | 8-channel DMA |
| ADC | High-speed 10/12-bit ADC with multiple sample-and-hold |
| RoHS Status | Compliant |
DSPIC33FJ64GP310-I/PT Pin Configuration
| Pin 1 | RP15/PWM3H/PMCS1/RA7 — Remappable I/O or PWM output or Peripheral Master Chip Select |
| Pin 10 | RP2/PWM4H/SCL1/INT2/RD2 — Remappable I/O or PWM or I2C SCL or external interrupt |
| Pin 100 | RP0/PWM4H/SDA1/INT1/RD0 — Remappable I/O or PWM or I2C SDA or external interrupt |
| Pin 11 | RP3/PWM4L/SDA1/INT3/RD3 — Remappable I/O or PWM or I2C SDA or external interrupt |
| Pin 12 | RP4/PWM5H/SCL1/INT4/RD4 — Remappable I/O or PWM or I2C SCL or external interrupt |
| Pin 13 | OSCI/RA1 — External crystal oscillator input |
| Pin 14 | OSCO/RA0 — External crystal oscillator output |
| Pin 15 | VDD — Core supply voltage (3.0-3.6 V) |
| Pin 16 | VSS — Ground reference |
| Pin 17 | RP16/PMD0/RE0 — Remappable I/O or Parallel Master Data bit 0 |
| Pin 18 | RP17/PMD1/RE1 — Remappable I/O or Parallel Master Data bit 1 |
| Pin 19 | RP18/PMD2/RE2 — Remappable I/O or Parallel Master Data bit 2 |
| Pin 2 | RP14/PWM3L/PMD7/RA6 — Remappable I/O or PWM or Parallel Master Data bit 7 |
| Pin 20 | RP19/PMD3/RE3 — Remappable I/O or Parallel Master Data bit 3 |
| Pin 21 | RP20/PMD4/RE4 — Remappable I/O or Parallel Master Data bit 4 |
| Pin 22 | RP21/PMD5/RE5 — Remappable I/O or Parallel Master Data bit 5 |
| Pin 23 | RP22/PMD6/RE6 — Remappable I/O or Parallel Master Data bit 6 |
| Pin 24 | RP23/PMD7/RE7 — Remappable I/O or Parallel Master Data bit 7 |
| Pin 25 | AVDD — Analog supply voltage (3.0-3.6 V) |
| Pin 26 | AVSS — Analog ground reference |
| Pin 27 | AN0/VREF+/RB0 — Analog input 0 / positive voltage reference / I/O |
| Pin 28 | AN1/VREF-/RB1 — Analog input 1 / negative voltage reference / I/O |
| Pin 29 | AN2/RB2 — Analog input 2 / I/O |
| Pin 3 | RP13/PWM2H/PMD6/RA5 — Remappable I/O or PWM or Parallel Master Data bit 6 |
| Pin 30 | AN3/RB3 — Analog input 3 / I/O |
| Pin 31 | AN4/RB4 — Analog input 4 / I/O |
| Pin 32 | AN5/RB5 — Analog input 5 / I/O |
| Pin 33 | AN6/RB6 — Analog input 6 / I/O |
| Pin 34 | AN7/RB7 — Analog input 7 / I/O |
| Pin 35 | AN8/RB8 — Analog input 8 / I/O |
| Pin 36 | AN9/RB9 — Analog input 9 / I/O |
| Pin 37 | AN10/RB10 — Analog input 10 / I/O |
| Pin 38 | AN11/RB11 — Analog input 11 / I/O |
| Pin 39 | AN12/RB12 — Analog input 12 / I/O |
| Pin 4 | RP12/PWM2L/PMD5/RA4 — Remappable I/O or PWM or Parallel Master Data bit 5 |
| Pin 40 | AN13/RB13 — Analog input 13 / I/O |
| Pin 41 | AN14/RB14 — Analog input 14 / I/O |
| Pin 42 | AN15/OCFB/RB15 — Analog input 15 / output compare fault B / I/O |
| Pin 43 | VDD — Core supply voltage (3.0-3.6 V) |
| Pin 44 | VSS — Ground reference |
| Pin 45 | RP24/RC0 — Remappable I/O |
| Pin 46 | RP25/RC1 — Remappable I/O |
| Pin 47 | RP26/RC2 — Remappable I/O |
| Pin 48 | RP27/RC3 — Remappable I/O |
| Pin 49 | RP28/RC4 — Remappable I/O |
| Pin 5 | RP11/PWM1H/PMD4/RA3 — Remappable I/O or PWM or Parallel Master Data bit 4 |
| Pin 50 | RP29/RC5 — Remappable I/O |
| Pin 51 | RP30/RC6 — Remappable I/O |
| Pin 52 | RP31/RC7 — Remappable I/O |
| Pin 53 | RP8/PWM5H/PMD8/RF0 — Remappable I/O or PWM or Parallel Master Data bit 8 |
| Pin 54 | RP9/PWM5L/PMD9/RF1 — Remappable I/O or PWM or Parallel Master Data bit 9 |
| Pin 55 | RP10/PWM6H/PMD10/RF2 — Remappable I/O or PWM or Parallel Master Data bit 10 |
| Pin 56 | RP5/PWM6L/PMD11/RF3 — Remappable I/O or PWM or Parallel Master Data bit 11 |
| Pin 57 | RP6/PWM3H/PMD12/RF4 — Remappable I/O or PWM or Parallel Master Data bit 12 |
| Pin 58 | RP7/PWM3L/PMD13/RF5 — Remappable I/O or PWM or Parallel Master Data bit 13 |
| Pin 59 | MCLR — Master Clear (reset) input, active low |
| Pin 6 | RP0/PWM1L/PMD0/RA0 — Remappable I/O or PWM or Parallel Master Data bit 0 |
| Pin 60 | PGEC1 — ICSP clock / ICD clock (pair with PGED1) |
| Pin 61 | PGED1 — ICSP data / ICD data (pair with PGEC1) |
| Pin 62 | PGEC2 — ICSP clock / ICD clock (pair with PGED2) |
| Pin 63 | PGED2 — ICSP data / ICD data (pair with PGEC2) |
| Pin 64 | RP1/PMD0/RD1 — Remappable I/O or Parallel Master Data bit 0 |
| Pin 65 | RP2/PMD1/RD2 — Remappable I/O or Parallel Master Data bit 1 |
| Pin 66 | RP3/PMD2/RD3 — Remappable I/O or Parallel Master Data bit 2 |
| Pin 67 | RP4/PMD3/RD4 — Remappable I/O or Parallel Master Data bit 3 |
| Pin 68 | VDD — Core supply voltage (3.0-3.6 V) |
| Pin 69 | VSS — Ground reference |
| Pin 7 | RP1/PWM1H/PMD1/RA1 — Remappable I/O or PWM or Parallel Master Data bit 1 |
| Pin 70 | RP8/PMD8/RF0 — Remappable I/O or Parallel Master Data bit 8 |
| Pin 71 | RP9/PMD9/RF1 — Remappable I/O or Parallel Master Data bit 9 |
| Pin 72 | RP10/PMD10/RF2 — Remappable I/O or Parallel Master Data bit 10 |
| Pin 73 | RP11/PMD11/RF3 — Remappable I/O or Parallel Master Data bit 11 |
| Pin 74 | RP12/PMD12/RF4 — Remappable I/O or Parallel Master Data bit 12 |
| Pin 75 | RP13/PMD13/RF5 — Remappable I/O or Parallel Master Data bit 13 |
| Pin 76 | RP14/PMD14/RF6 — Remappable I/O or Parallel Master Data bit 14 |
| Pin 77 | RP15/PMD15/RF7 — Remappable I/O or Parallel Master Data bit 15 |
| Pin 78 | VDD — Core supply voltage (3.0-3.6 V) |
| Pin 79 | VSS — Ground reference |
| Pin 8 | RP8/PWM2L/PMD8/RD0 — Remappable I/O or PWM or Parallel Master Data bit 8 |
| Pin 80 | RA15 — General purpose I/O |
| Pin 81 | RA14 — General purpose I/O |
| Pin 82 | RA13 — General purpose I/O |
| Pin 83 | RA12 — General purpose I/O |
| Pin 84 | RA11 — General purpose I/O |
| Pin 85 | RA10 — General purpose I/O |
| Pin 86 | RA9 — General purpose I/O |
| Pin 87 | RA8 — General purpose I/O |
| Pin 88 | RA7 — General purpose I/O |
| Pin 89 | RA6 — General purpose I/O |
| Pin 9 | RP9/PWM2H/PMD9/RD1 — Remappable I/O or PWM or Parallel Master Data bit 9 |
| Pin 90 | RA5 — General purpose I/O |
| Pin 91 | RA4 — General purpose I/O |
| Pin 92 | RA3 — General purpose I/O |
| Pin 93 | RA2 — General purpose I/O |
| Pin 94 | RA1 — General purpose I/O |
| Pin 95 | RA0 — General purpose I/O |
| Pin 96 | VDD — Core supply voltage (3.0-3.6 V) |
| Pin 97 | VSS — Ground reference |
| Pin 98 | RP8/PWM3H/RD0 — Remappable I/O or PWM |
| Pin 99 | RP9/PWM3L/RD1 — Remappable I/O or PWM |
Typical Applications
DSPIC33FJ64GP310-I/PT is suitable for 7 applications: Sensorless BLDC Motor Control, Digital Power Conversion (PFC + LLC), Audio and Speech Signal Processing, Industrial Sensor Conditioning and Instrumentation, Switch-Mode Power Supply (SMPS) Control, Automotive Body and Comfort Modules, Consumer Appliance Control Boards.
Sensorless BLDC Motor Control
The DSPIC33FJ64GP310-I/PT is widely used for sensorless BLDC and PMSM motor drives thanks to its 40 MIPS DSP engine and high-speed ADC with multiple sample-and-hold inputs. The hardware MAC and dual 40-bit accumulators execute field-oriented control loops and zero-crossing back-EMF detection within microseconds, while the 100-pin TQFP exposes six PWMs and quadrature encoder inputs for three-phase drive. Compared to a software-only PID on a generic MCU, the dsPIC33F reduces loop-closure latency by 5-10x, enabling higher RPM and smoother torque. Paired with gate drivers like the MCP8024 and a 3-shunt current-sense stage, this DSC delivers production-grade sensorless control for fans, pumps, e-bikes, and appliance drives.
Recommended
Digital Power Conversion (PFC + LLC)
In digital power supplies and power-factor correction (PFC) stages, the DSPIC33FJ64GP310-I/PT runs voltage-mode and average-current-mode control loops at switching frequencies up to several hundred kHz. Its 40 MIPS DSP engine executes CCM/DCM PFC math and LLC resonant control in a single part, while the 12-bit ADC with multiple S&H channels samples input voltage, input current, and output voltage simultaneously - critical for digital PFC per Microchip's dsPIC33F SMPS reference designs. The 64 KB FLASH accommodates state-machine plus digital compensator code. Paired with an isolated gate driver like the Si8271 or a digital-power-optimized analog front end, this DSC replaces legacy analog UCCx808 controllers with a flexible software-defined control law.
Recommended
Audio and Speech Signal Processing
The DSPIC33FJ64GP310-I/PT handles audio and speech processing tasks such as FIR/IIR filtering, noise suppression, and acoustic echo cancellation directly in firmware. The hardware 17-bit x 17-bit MAC and dual 40-bit accumulators sustain sample-rate audio processing up to 48 kHz without CPU loading, while 16 KB RAM buffers several hundred audio samples per channel. The 100-pin TQFP package exposes I2S/SPT interfaces that pair with external audio CODECs like the AK4642. Compared to a generic MCU, the dsPIC33F cuts audio-filter cycles by 5x, freeing CPU headroom for higher-level DSP like FFT-based spectral processing. Common uses include intercom, hearing-aid preprocessing, and speech-recognition front ends.
Recommended
Industrial Sensor Conditioning and Instrumentation
For industrial sensor conditioning and instrumentation, the DSPIC33FJ64GP310-I/PT integrates a 16-bit DSC core with 10/12-bit ADC and DSP math for strain gauge, load cell, and temperature sensor linearization. The 40 MIPS throughput executes polynomial compensation and digital filtering at high update rates, while the industrial -40C to +85C temperature rating suits factory-floor environments. The 100-pin TQFP exposes UART, SPI, and I2C for connectivity to host PLCs or HMI panels, and the 64 KB FLASH stores calibration tables alongside application firmware. Compared with a discrete op-amp + ADC solution, this DSC lowers BOM cost by integrating signal chain and MCU in one part.
Recommended
Switch-Mode Power Supply (SMPS) Control
In switch-mode power supply (SMPS) control, the DSPIC33FJ64GP310-I/PT executes peak-current-mode and voltage-mode control loops for buck, boost, and flyback topologies. The DSP engine runs the digital compensator and soft-start sequencing, while high-resolution PWM and ADC synchronization enable sub-microsecond duty-cycle updates. The 64 KB FLASH and 16 KB RAM fit multi-loop firmware including telemetry and PMBus-style monitoring. Per Microchip's dsPIC33F SMPS reference design, this DSC supports 200-500 kHz switching with adequate margin. Compared to an analog UC3842 controller, it adds programmability, telemetry, and adaptive loop tuning in software.
Recommended
Automotive Body and Comfort Modules
While the DSPIC33FJ64GP310-I/PT is industrial-grade, it is also widely used in non-safety automotive body and comfort modules such as HVAC blower controllers, seat heaters, mirror modules, and LED drivers. Its 40 MIPS DSP engine runs LIN/CAN-connected motor and lighting control loops, while the 100-pin TQFP exposes enough PWMs for multi-channel LED dimming and DC-motor drive. The -40C to +85C industrial temperature rating covers most cabin environments. Compared with automotive-grade AEC-Q100 DSCs (e.g. DSPIC33FJ64MC510A-I/PT), this part saves cost for non-safety modules where AEC-Q100 qualification is not required. It is a strong fit for body-electronics OEMs targeting mid-volume passenger programs.
Recommended
Consumer Appliance Control Boards
The DSPIC33FJ64GP310-I/PT is a strong fit for consumer appliance control boards including washing machines, dishwashers, induction cookers, and refrigerator inverters. Its DSP engine handles BLDC motor control for variable-speed compressors and pumps, while the 100-pin TQFP exposes touch-sense, display, and user-interface peripherals. The 64 KB FLASH and 16 KB RAM accommodate state-machine firmware plus application code, and the ICSP debug port speeds up mass-production programming. Compared to a discrete MCU + motor-driver solution, this DSC reduces board area and BOM cost while supporting firmware updates across appliance model variants.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64GP310-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64GP310A-I/PT | DSPIC33FJ128GP310-I/PT | DSPIC33FJ64GP310T-I/PT | DSPIC33FJ128GP310T-I/PF | DSPIC33FJ256GP710A-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-100 (12x12 mm) | TQFP-100 (12x12 mm) - same | TQFP-100 (12x12 mm) - same | TQFP-100 (12x12 mm) - same | TQFP-100 (14x14 mm) - verify land pattern | TQFP-100 (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed (MIPS) | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| FLASH Memory | 64 KB | 64 KB (same) | 128 KB (+100%) | 64 KB (same) | 128 KB (+100%) | 256 KB (+300%) |
| Data RAM | 16 KB | 16 KB (same) | 16 KB (same) | 16 KB (same) | 16 KB (same) | 32 KB (+100%) |
| Operating 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 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Silicon Revision / Variant | Base GP310, 64 KB | Rev A errata-fix | GP310 die with 128 KB FLASH | Tape & reel packaging code | 128 KB FLASH, T&R, 14x14 TQFP | GP710 die with 256 KB FLASH |
Key Differentiators
- Same silicon with errata fix in identical TQFP-100 12x12 footprint (vs DSPIC33FJ64GP310A-I/PT)
- Doubles FLASH to 128 KB in identical TQFP-100 12x12 footprint (vs DSPIC33FJ128GP310-I/PT)
- Same die with 256 KB FLASH + 32 KB RAM in identical TQFP-100 12x12 footprint (vs DSPIC33FJ256GP710A-I/PT)
Design Notes
The DSPIC33FJ64GP310-I/PT requires a clean 3.0 V to 3.6 V supply. Place a 10 uF bulk tantalum or ceramic capacitor near each VDD/VSS pair on the 100-pin TQFP, with a 0.1 uF ceramic decoupling cap adjacent to every VDD pin (per Microchip dsPIC33F hardware design checklist). AVDD must be tied to VDD with its own decoupling network; failure to decouple AVDD separately introduces ADC noise that exceeds the 12-bit ENOB.
Route PGECx/PGEDx pairs as short, parallel, length-matched traces (under 50 mm) and add a series 4.7 kohm pull-up on MCLR to VDD per the dsPIC33F programming specification. The 100-pin TQFP at 12x12 mm uses 0.5 mm pitch - use 0.15 mm trace/space rules with vias-in-pad if your fab supports it, otherwise dog-bone fanout. Provide a ground pour under the IC for thermal dissipation; the package is rated at roughly 1 W without airflow.
Do NOT use PGEC1 with PGED2 (or any mismatched pair) for ICSP - the dsPIC33F datasheet requires PGECx and PGEDx to use the SAME index. Also, leave unused analog inputs tied to AVSS or AVDD (not floating) to avoid shoot-through current in the ADC input mux. When migrating from dsPIC30F code, verify the interrupt vector table - the dsPIC33F uses a different IVT layout and the legacy dsPIC30F vectors will not run.
Compliance Information
Industrial temperature grade -40C to +85C; not AEC-Q100 qualified. RoHS and REACH compliant per Microchip product page. Lead-free and halogen-free per Microchip environmental certification.
