DSPIC33EP128GM710T-I/PT - 70 MIPS 16-bit DSC 128KB Flash | Microchip
MPN: DSPIC33EP128GM710T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.62 | $7.62 |
| 10 | $6.86 | $68.60 |
| 100 | $5.71 | $571.00 |
| 500 | $5.2 | $2,600.00 |
| 1,000 | $4.74 | $4,740.00 |
DSPIC33EP128GM710T-I/PT Overview
A digital signal controller combines the computational core of a microcontroller with DSP-style math acceleration in a single chip. In the power-management hierarchy of embedded systems, a DSC sits between general-purpose MCUs and dedicated DSPs, making it the preferred choice when control loops (such as field-oriented motor control or digital power conversion) require multiply-accumulate throughput alongside real-time I/O and peripherals.
Key features of the DSPIC33EP128GM710T-I/PT include a high-performance 16-bit dsPIC33E core with DSP engine, barrel shifter, and 40-bit wide accumulators; multiple high-resolution PWM modules suited for motor control and switching power supplies; DMA channels for low-CPU-overhead data movement; and Peripheral Pin Select (PPS), which allows many digital peripherals to be remapped to a wide choice of pins for flexible board routing.
The dsPIC33E architecture uses an enhanced Harvard bus structure with a 24-bit instruction word and pipelined execution, achieving up to 70 MIPS from an internally generated clock, reducing external oscillator cost. Fixed-point DSP instructions (MAC, MPY, ED) enable fast FIR/IIR filtering, and the enriched peripheral set includes high-speed ADCs, UART/SPI/I2C communication ports, and a watchdog with dual TTL-compatible crystal options.
Typical applications include precision motor control (BLDC, PMSM, stepper) for industrial automation, digital power supplies and solar inverters, and sensor-fusion embedded control in appliances and automotive-adjacent systems, where deterministic interrupt latency and hardware PWM resolution matter more than raw clock frequency.
Design consideration: keep the Flash erase/write voltage requirements and 3.0V to 3.6V supply rail in mind; provide solid VDD/VSS decoupling on all power pin pairs and a low-impedance VDDCORE capacitor per the manufacturer datasheet to guarantee stable core regulation at 70 MIPS.
This page synthesizes distributor pricing, drop-in alternatives, design notes, and application guidance not found on the standard manufacturer product page.
Drop-in alternatives for DSPIC33EP128GM710T-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 DSPIC33EP128GM710T-I/PT (same form factor and footprint) — differing in Package, Operating Temperature, Flash Program Memory, Quadrature Encoder Interfaces, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128GM710T-I/PF
✅ Drop-In✓ In Stock
$6.15 / Unit
View Datasheet →DSPIC33EP256GM710
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64GM710
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128GM610
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP256GM610
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128GM710T-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit DSC |
| Max CPU Speed | 70 MIPS |
| Program Memory Size | 128KB (43K x 24) Flash |
| Data RAM Size | 16KB |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 100-TQFP (14x14 mm, PT) |
| Mounting Type | Surface Mount |
| Core Architecture | Enhanced Harvard, 24-bit instruction word |
| Peripheral Pin Select (PPS) | Yes |
| DSP Engine | Single-cycle MAC, barrel shifter, 40-bit accumulators |
| Communication Interfaces | UART, SPI, I2C |
| PWM Peripherals | High-speed PWM for motor control / digital power |
| RoHS Status | Compliant |
| Packaging Suffix | T = Tape and Reel |
DSPIC33EP128GM710T-I/PT 100-tqfp (14x14 mm, pt) Pin Configuration Guide
Pin configuration for DSPIC33EP128GM710T-I/PT (100-tqfp (14x14 mm, pt) 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 DSPIC33EP128GM710T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128GM710T-I/PT is suitable for 6 applications: BLDC/PMSM Motor Control, Digital Power Supplies and Inverters, Industrial Automation and PLC I/O, Sensor Signal Processing, Appliance and Consumer Control Boards, Embedded Data Acquisition and Logging.
BLDC/PMSM Motor Control
The DSPIC33EP128GM710T-I/PT is purpose-built for field-oriented control (FOC) of brushless DC and permanent-magnet synchronous motors: its 70 MIPS DSP core executes Clarke/Park transforms and PI current loops with single-cycle MAC instructions, while the high-resolution PWM modules generate complementary outputs with dead-time insertion for three-phase bridges. Firmware fits comfortably in 128KB Flash with 16KB RAM for compensator state and fault logs. Typical implementations run current loops at 20-50kHz with ADC end-of-conversion triggering PWM updates, minimizing loop latency. Using this DSC avoids an external gate-driver DSP interface, cutting BOM cost versus discrete controller plus MCU architectures.
Recommended
Digital Power Supplies and Inverters
In LLC resonant converters, solar micro-inverters, and PFC stages, the DSPIC33EP128GM710T-I/PT provides the deterministic control timing that digital power demands: 70 MIPS core throughput sustains voltage and current loop bandwidths above 10kHz, and hardware PWM with fine edge resolution meets efficiency targets across load ranges. The 16KB RAM holds multi-loop compensator state, telemetry buffers, and fault histograms, while DMA offloads ADC streaming so the CPU focuses on control math. Compared with analog control ICs, this DSC adds adaptive startup, soft scheduling, and firmware-updatable protection profiles without changing hardware, making one PCB reusable across power-rating variants.
Recommended
Industrial Automation and PLC I/O
Factory nodes benefit from the DSC blend of MCU peripherals and DSP math: the DSPIC33EP128GM710T-I/PT's 100-pin footprint supplies the many I/O needed for sensor arrays, limit switches, and actuator drivers, while UART, SPI, and I2C ports link RS-485 transceivers and industrial Ethernet companion bridges. Peripheral Pin Select routes communication blocks to whichever pins the backplane uses, simplifying PCB reuse across product families. The -40C to +85C industrial grade and 128KB Flash accommodate protocol stacks plus diagnostic code. Estimated benefit: consolidating sequencer, filtering, and communications in one 70 MIPS chip typically replaces two separate ICs in modular I/O designs.
Recommended
Sensor Signal Processing
Applications such as vibration monitoring, weigh scales, and ultrasonic flow measurement need FIR/IIR filtering on raw sensor streams - exactly where the dsPIC33E DSP engine earns its place. The DSPIC33EP128GM710T-I/PT performs single-cycle MAC operations on 16-bit data with 40-bit accumulators, enabling high-order filters without floating-point overhead, and DMA moves ADC samples to RAM without CPU intervention. The 100-pin TQFP leaves ample pins for multiplexed sensor front ends and status indicators. Filtering in the DSC eliminates an external filter IC, and the 16KB RAM sustains double-buffered processing pipelines at kilohertz sample rates typical of precision sensing systems.
Recommended
Appliance and Consumer Control Boards
Washing machines, air conditioners, and induction cooktops pair motor control with user-interface handling - a workload the DSPIC33EP128GM710T-I/PT absorbs on one die. The 70 MIPS core closes motor current loops while spare cycles service capacitive-touch or encoder inputs, buzzers, and UART links to display boards. Peripheral Pin Select means one PCB layout can serve variants by remapping peripherals in firmware, trimming SKU proliferation. The 128KB Flash holds control law plus diagnostics and OTA-style parameter tables in the 16KB RAM. This single-chip approach reduces board area and qualifies the design across -40C to +85C ambient conditions found in appliance enclosures.
Recommended
Embedded Data Acquisition and Logging
Distributed monitoring equipment - energy meters, pump controllers, environmental stations - uses the DSPIC33EP128GM710T-I/PT to sample analog channels, filter them on-chip, and stream results over UART/SPI/I2C to radios or gateways. DMA-fed ADC sampling keeps timestamping deterministic, and the 70 MIPS budget leaves headroom for compression or Modbus framing. The 100-pin TQFP connects multiple front-end ADCs, EEPROM banks, and power-monitoring ICs simultaneously without bus contention. At 3.3V single-supply operation, power-tree design is straightforward with a buck plus LDO. Estimated: one DSC here can replace a separate MCU plus DSP chipset, cutting PCB cost and firmware complexity.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128GM710T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128GM710T-I/PF | DSPIC33EP256GM710 | DSPIC33EP64GM710 | DSPIC33EP128GM610 |
|---|---|---|---|---|---|
| Package | 100-TQFP (14x14 mm, PT) | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 128KB (43K x 24) | 128KB | 256KB | 64KB | 128KB |
| Data RAM | 16KB | 16KB | 16KB | 16KB | 16KB |
| 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 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C (I grade variants) | -40C to +85C (I grade variants) | -40C to +85C (I grade variants) |
Key Differentiators
- Optimal memory density for medium FOC firmware (vs DSPIC33EP64GM710)
- Lower cost than the double-memory sibling (vs DSPIC33EP256GM710)
- Tape-and-reel assembly flow (vs DSPIC33EP128GM710T-I/PF)
Design Notes
Power the DSPIC33EP128GM710T-I/PT from a regulated 3.3V rail within the 3.0V-3.6V datasheet window. Fit 100nF ceramics at every VDD/VSS pair directly at the pins, plus a bulk 4.7uF-10uF capacitor near the device. The on-chip core regulator requires its dedicated VDDCORE capacitor per the Microchip family datasheet - omitting it is the most common cause of 70 MIPS startup failures. Sequence power monotonically; brown-out detection should be enabled to prevent Flash corruption during slow rail collapse.
On the 100-TQFP 14x14 mm footprint, place the decoupling network on the component side within 2mm of pins, with vias dropping to a solid ground plane. Route PGECx/PGEDx programming pairs away from PWM and switching-node nets to keep in-circuit debug reliable. Use Peripheral Pin Select to assign UART/SPI pins that avoid crossing the oscillator area. Keep crystal traces under 15mm with guard ground for jitter-sensitive digital power control loops.
Common integration mistakes: relying on emulated floating point in tight control loops (use the DSP engine fixed-point instructions instead); exceeding PPS limitations for certain remappable peripherals documented in the family datasheet Section 11.4; selecting non-I temperature suffixes (E or commercial) for outdoor -40C deployments; and ordering the /PF tray code when tape-and-reel volume assembly was intended - both are the same die, but feeder setups differ.
Compliance Information
RoHS-compliant and lead-free per Microchip standard commercial product policy; verify REACH and halogen-free status on the Microchip product page for the specific order code.
