DSPIC33FJ128GP710T-I/PT - 16-bit DSC 40 MIPS 128KB | Microchip
MPN: DSPIC33FJ128GP710T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.9 | $6.90 |
| 10 | $6.28 | $62.80 |
| 25 | $5.95 | $148.75 |
| 100 | $5.55 | $555.00 |
| 1,000 | $4.9 | $4,900.00 |
DSPIC33FJ128GP710T-I/PT Overview
A digital signal controller combines the computational architecture of a digital signal processor with the peripherals and ease of use of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC sits between a general-purpose MCU and a dedicated DSP, offering a 16-bit modified Harvard architecture, DSP multiply-accumulate instructions, and microcontroller-style peripherals in a single device. The dsPIC33F family from Microchip Technology is one of the most widely deployed 16-bit DSC families for industrial and motor-control designs.
Key features of this part include the 16-bit dsPIC33F RISC core operating at up to 40 MIPS, 128KB (128K x 8) of Flash program memory, and the General Purpose (GP) peripheral variant with audio-oriented interfaces. The GP series adds codec interfaces and extensive analog integration, including a high-speed 12-bit ADC and comparators, making it distinct from the Motor Control (MC) variants in the same family.
Architecturally, the dsPIC33F core pairs a 16-bit datapath with two 40-bit accumulators, single-cycle MAC, and hardware division support, allowing C-compiler-friendly DSP algorithms such as FIR/IIR filtering and FFTs to run deterministically. Flash endurance is specified at a minimum of 100 erase/write cycles, so developers should use data EEPROM emulation carefully during long development cycles, as noted by third-party programming-tool documentation.
Typical applications include digital power supplies, industrial automation and sensing, audio processing and speech applications, and general-purpose embedded control where 16-bit precision and DSP throughput are required. The 100-pin TQFP provides generous GPIO and peripheral pin counts for designs needing multiple communication ports and analog channels.
A key design consideration is power supply quality: the device requires a 3.0-3.6V rail with 0.1 uF ceramic decoupling on each VDD/VSS pair, and the MCLR pin should include an RC network per the datasheet recommended minimum connection diagram.
This page synthesizes distributor pricing, drop-in alternatives, pinout guidance, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33FJ128GP710T-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 DSPIC33FJ128GP710T-I/PT (same form factor and footprint) — differing in Core, Operating Temperature, Package, Packaging, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ128GP710-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ128GP710T-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ256GP710T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.45 / Unit
View Datasheet →DSPIC33FJ64GP710T-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ128GP710AT-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.05 / Unit
View Datasheet →DSPIC33FJ128GP710T-I/PT Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC33F RISC |
| Max CPU Speed | 40 MIPS (at 3.0-3.6V) |
| Program Memory | 128KB (128K x 8) Flash |
| Supply Voltage | 3.0 V to 3.6 V |
| Series | dsPIC 33F (GP - General Purpose) |
| Package | 100-TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) |
| Flash Endurance | 100 erase/write cycles (minimum) |
| Programming Interface | ICSP (In-Circuit Serial Programming), 2-wire |
| Debug Support | In-circuit debugging (MPLAB SNAP / ICD) |
| Packaging | Tape & Reel (T suffix) |
| RoHS Status | Lead free / RoHS Compliant |
| Product Type | Digital Signal Controller (DSC) |
DSPIC33FJ128GP710T-I/PT 100-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ128GP710T-I/PT (100-tqfp (12x12 mm) 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 DSPIC33FJ128GP710T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ128GP710T-I/PT is suitable for 6 applications: Digital Power Supplies, Industrial Automation and Sensing, Audio Processing and Speech Systems, Motor Control Auxiliary and Supervision, Instrumentation and Data Acquisition, General Purpose Embedded Control.
Digital Power Supplies
The DSPIC33FJ128GP710T-I/PT is well suited to digitally controlled AC/DC and DC/DC power supplies because its 16-bit dsPIC33F core executes control-loop compensation at up to 40 MIPS with deterministic single-cycle MAC instructions, enabling switching frequencies in the hundreds of kHz with PID or 2p2z compensators. The GP variant's high-speed ADC samples voltage and current feedback, and the 128KB Flash holds multiple control laws plus communications firmware. Unlike analog controllers, firmware-based control allows adaptive mode switching, soft-start profiles, and telemetry over UART or SPI. The trade-off versus a dedicated analog PWM controller is firmware development effort and loop-latency budgeting - the ADC sample-to-PWM-update path must fit within the switching period.
Recommended
Industrial Automation and Sensing
In factory automation nodes - sensor transmitters, actuator controllers, and PLC I/O modules - the DSPIC33FJ128GP710T-I/PT combines a -40C to +85C industrial temperature rating with 85-plus I/O pins on the 100-pin TQFP, allowing multiple UART, SPI, and I2C ports plus a rich analog front end on one chip. The 40 MIPS core runs filtering and diagnostic code alongside the protocol stack, and the 128KB Flash leaves headroom for field-updatable firmware. Its ICSP 2-wire interface permits in-field reprogramming through a service connector. Designers should budget flash endurance (minimum 100 erase/write cycles specified) when implementing frequent parameter logging in Flash, preferring external EEPROM for wear-intensive data.
Recommended
Audio Processing and Speech Systems
The GP (General Purpose) variant of the dsPIC33FJ family adds codec interfaces specifically targeting audio and speech applications, making the DSPIC33FJ128GP710T-I/PT a fit for voice-band processing, intercoms, and effects units. The 40 MIPS core sustains multiple concurrent FIR/IIR filter banks or an FFT-based spectrum analyzer, while the hardware MAC keeps cycle counts predictable for real-time audio paths. The 128KB Flash accommodates codec libraries, echo cancellation, and a small UI. Compared with a dedicated audio DSP, the dsPIC33F integrates system control, communications, and GPIO in one device, reducing BOM count; the trade-off is a lower total MIPS ceiling than premium audio DSPs, so keep algorithm complexity within the 40 MIPS budget.
Recommended
Motor Control Auxiliary and Supervision
Although the MC variants of dsPIC33F are dedicated motor controllers, the DSPIC33FJ128GP710T-I/PT excels as the supervisory DSC in multi-chip motor-drive systems: it runs the user interface, fieldbus communication (UART/SPI/CAN-class protocols), and safety monitoring while MC-class parts handle the PWM loops. The 100-pin TQFP provides enough I/O to supervise multiple drives, read encoders or Hall sensors through its ADC and digital ports, and manage fault latching with deterministic 40 MIPS response. The industrial temperature rating covers typical drive-environment ambient conditions. Place it on a clean 3.3V rail with local 0.1 uF decoupling, and route PWM inverter feedback away from its analog inputs to preserve ADC accuracy in the noisy drive chassis.
Recommended
Instrumentation and Data Acquisition
Bench instruments, dataloggers, and condition-monitoring nodes benefit from the DSPIC33FJ128GP710T-I/PT's combination of a 12-bit-class ADC front end, DSP filtering instructions, and abundant communication ports. The 40 MIPS core can decimate and window sample streams before passing reduced datasets over UART or SPI to a host, minimizing link bandwidth. The 128KB Flash stores calibration tables, multiple configuration profiles, and logging buffers. Because the flash endurance is specified at a minimum of 100 erase/write cycles, route frequent event logs to external EEPROM or FRAM and reserve on-chip Flash for firmware. The 100-pin TQFP simplifies routing a dense analog front end with a solid ground plane under the device.
Recommended
General Purpose Embedded Control
For general embedded products - lighting controllers, HVAC boards, chargers, and human-machine interfaces - the DSPIC33FJ128GP710T-I/PT offers a single-chip solution: 16-bit 40 MIPS core, ample GPIO on the 100-pin TQFP, multiple serial ports, and analog inputs, all within a 3.0-3.6V rail typical of modern designs. The mature dsPIC33F toolchain (MPLAB X with free compilers and Explorer 16/32 development board support) shortens time to market, and the ICSP two-pin interface enables low-cost production programming. Compared with an 8-bit PIC18, the 16-bit core and DSP instructions handle math-heavy control code more efficiently; compared with a 32-bit MCU, it offers lower peripheral complexity and deterministic execution for hard real-time loops.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ128GP710T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ128GP710-I/PT | DSPIC33FJ128GP710T-E/PT | DSPIC33FJ256GP710T-I/PT | DSPIC33FJ64GP710T-I/PT |
|---|---|---|---|---|---|
| Package | 100-TQFP (12x12 mm) | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Speed | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS |
| Program Flash | 128 KB | 128 KB | 128 KB | 256 KB | 64 KB |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Packaging | Tape & Reel (T) | Tray | Tape & Reel (T) | Tape & Reel (T) | Tape & Reel (T) |
| 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 |
| RoHS / Lead Free | Compliant / Yes | Compliant / Yes | Compliant / Yes | Compliant / Yes | Compliant / Yes |
Key Differentiators
- 2x program memory in the same footprint (vs DSPIC33FJ64GP710T-I/PT)
- Extended-temperature sibling available (vs DSPIC33FJ128GP710T-E/PT)
- Identical silicon in tray packaging (vs DSPIC33FJ128GP710-I/PT)
Design Notes
The dsPIC33FJ requires a 3.0-3.6V regulated rail. Per the datasheet recommended minimum connection diagram (Figure 2-1), fit a 0.1 uF ceramic capacitor on every VDD/VSS pin pair, placed within 2-3 mm of the pins, plus bulk capacitance (10 uF) near the device. The MCLR pin needs a pull-up (10k ohm) and the datasheet shows an RC network with a series resistor for robust ICSP operation. Power the analog supply (AVDD) through an RC filter or ferrite from the digital rail to preserve ADC accuracy.
The dsPIC33FJ family flash endurance is specified at a minimum of only 100 erase/write cycles - it is easy to wear the flash out during development, as documented by third-party programming-tool vendors (e.g., NSDSP support notes). Avoid repeatedly re-flashing during debug where possible and use an ICD/SNAP debug session instead of full reprogramming. In production, do not use main Flash for frequently updated parameter storage; use external EEPROM or implement EEPROM emulation with wear leveling across large Flash sectors.
The 100-pin TQFP has 0.5 mm pin pitch; use a solder-mask-defined footprint per IPC-7351 conventions and route the analog port (PORTB / AN0-AN15) traces away from switching nodes and crystal lines. Keep the oscillator traces short with guard ground. The exposed center area under the TQFP should be a via-stitched ground region - the TQFP has no exposed pad, so thermal relief is through the perimeter leads; a solid internal ground plane under the device is recommended for signal integrity at 40 MIPS operation.
Compliance Information
Lead free / RoHS Compliant per distributor datasheet records (micro-semiconductor.com). REACH, halogen-free, and conflict-minerals status not stated in retrieved data - verify with Microchip environmental compliance documentation.
