DSPIC33EP128GM710T-I/PF - 16-bit 70 MIPS DSC, 128KB Flash | Microchip
MPN: DSPIC33EP128GM710T-I/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.56 | $7.56 |
| 10 | $7.18 | $71.80 |
| 100 | $6.82 | $682.00 |
| 500 | $6.48 | $3,240.00 |
| 1,000 | $6.15 | $6,150.00 |
DSPIC33EP128GM710T-I/PF Overview
A digital signal controller (DSC) combines the compute capability of a digital signal processor with the peripheral integration, interrupt architecture and deterministic control behavior of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC sits above general-purpose MCUs for math-intensive real-time control loops and below standalone DSPs in cost and integration density.
Key features include 12 Motor Control PWM (MCPWM) channels, 8 input capture and 8 output compare channels, 2 quadrature encoder interfaces, 4 on-chip operational amplifiers, a Charge Time Measurement Unit (CTMU), and a Peripheral Trigger Generator (PTG). ThePeripheral Pin Select (PPS) feature allows remapping of many peripherals onto available RPn pins, greatly increasing layout flexibility in dense 100-pin designs.
Architecturally, the dsPIC33E core uses a modified Harvard bus structure with a 17-bit x 17-bit single-cycle hardware multiplier, 40-bit accumulators, dual DSP multiply-accumulate support and a barrel shifter, allowing filters and transforms to run at full core speed without external assistance. Program execution is pipelined for deterministic interrupt latency.
Typical applications include precision motor control (BLDC, PMSM, stepper), digital power supplies and inverters, sensor signal conditioning leveraging the integrated op-amps, and industrial automation nodes where the CTMU enables capacitive touch or time-of-flight measurement.
Design consideration: the device operates at 3V to 3.6V single supply; ensure decoupling on all VDD/VDDCORE pairs and follow Microchip's oscillator layout guidance for the 70 MIPS internal PLL clock.
This page adds value over the raw datasheet by synthesizing distributor pricing, verified drop-in family alternatives, and application-level design notes in one structured reference.
Drop-in alternatives for DSPIC33EP128GM710T-I/PF — 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/PF (same form factor and footprint) — differing in Core, Operating Temperature, Package, Packaging, Program Memory Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128GM710-I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP128GM710T-E/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP64GM710T-I/PF
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP256GM710T-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.4 / Unit
View Datasheet →DSPIC33EP128GM710T-I/PF Maximum Ratings & Electrical Characteristics
| Core | dsPIC33EP 16-bit DSC core |
| Max CPU Speed | 70 MIPS |
| Program Memory Size | 128KB (43K x 24) Flash |
| RAM Size | 16KB |
| Supply Voltage Range | 3 V to 3.6 V |
| Operating Temperature | -40C to +85C |
| Package | 100-TQFP (14 x 14 mm) |
| Mounting Type | Surface Mount |
| MCPWM Channels | 12 |
| Input Capture / Output Compare | 8 / 8 |
| Quadrature Encoder Interfaces | 2 |
| On-chip Op-Amps | 4 |
| CTMU | Yes |
| Peripheral Trigger Generator (PTG) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Packaging | Tape and Reel (T suffix) |
DSPIC33EP128GM710T-I/PF 100-tqfp (14 x 14 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP128GM710T-I/PF (100-tqfp (14 x 14 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 DSPIC33EP128GM710T-I/PF.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128GM710T-I/PF is suitable for 6 applications: Precision Motor Control (BLDC/PMSM/Stepper), Digital Power Supplies and Inverters, Industrial Automation and PLC Nodes, Sensor Signal Conditioning and Measurement, Embedded Audio and DSP Processing, Touch Sensing and Human Interface.
Precision Motor Control (BLDC/PMSM/Stepper)
The DSPIC33EP128GM710T-I/PF fits motor control because its 70 MIPS DSP core executes field-oriented control (FOC) transforms single-cycle, while 12 MCPWM channels generate complementary, dead-time-controlled outputs for half- and full-bridge inverters and dual-motor drives. Two quadrature encoder interfaces read position feedback from incremental encoders without CPU overhead. In a typical BLDC/PMSM drive, the MCPWM triggers ADC sampling of phase currents synchronously with PWM centers, eliminating software jitter; the 4 on-chip op-amps buffer current-shunt signals directly, removing external amplifiers from the BOM. Trade-off: 128KB Flash accommodates FOC plus communication stacks (CAN, UART), but very large state machines may favor the 256KB GM710 sibling on the identical footprint.
Recommended
Digital Power Supplies and Inverters
The DSPIC33EP128GM710T-I/PF suits digital power design because center-aligned MCPWM outputs with hardware dead time and fault clamp inputs implement phase-shifted full-bridge, LLC, and totem-pole PFC topologies deterministically. The 70 MIPS core closes voltage/current loops into the hundreds of kHz switching range, and the Peripheral Trigger Generator (PTG) sequences ADC samples without CPU intervention, guaranteeing loop timing even under interrupt load. The CTMU can also serve precision time or resistance measurement in telemetry circuits. Use the integrated op-amps for average-current sensing; note the core runs on 3V-3.6V, so level-shift gate drivers (e.g., 5V-tolerant inputs or dedicated drivers) are needed between PWM pins and the power stage.
Recommended
Industrial Automation and PLC Nodes
In industrial automation, the DSPIC33EP128GM710T-I/PF provides the I/O density and analog integration a 100-pin DSC needs: 8 input capture and 8 output compare channels time-stamp encoder and sensor events with core-clock resolution, while 2 QEI modules track two motion axes simultaneously. The Peripheral Pin Select (PPS) feature lets UART, SPI, and capture functions be mapped to any available RPn pin, so one PCB layout can serve multiple product variants. The CTMU supports capacitive-touch operator panels or cable/time-of-flight diagnostics. With 128KB Flash, protocol stacks (Modbus, CANopen layers) coexist with the control application. For extended ambient conditions above +85C, the pin-compatible E-grade variant should be specified instead.
Recommended
Sensor Signal Conditioning and Measurement
The DSPIC33EP128GM710T-I/PF is well matched to sensor front ends because its 4 on-chip operational amplifiers can be configured as gain stages, filters, or comparators for bridge sensors (pressure, load cells, thermistors), shortening the analog chain between transducer and the internal 10/12-bit ADC inputs. The Charge Time Measurement Unit (CTMU) provides precise constant-current sources for capacitance and resistance measurement - useful for capacitive sensing and RTD linearization - while the DSP core implements oversampling, averaging and IIR/FIR filtering at 70 MIPS. Design consideration: integrated op-amps have modest bandwidth and DC accuracy compared with precision external amplifiers, so verify gain-bandwidth against your signal bandwidth before eliminating external signal-conditioning stages.
Recommended
Embedded Audio and DSP Processing
With a 17x17 single-cycle multiplier, dual 40-bit accumulators and a barrel shifter, the DSPIC33EP128GM710T-I/PF executes fixed-point DSP kernels - FIR/IIR filters, FFTs, PID compensators - efficiently, making it viable for audio equalization, active noise systems, and vibration analysis at moderate sample rates. Its 8 input-capture channels and DMA-capable peripheral set support deterministic data streaming from codecs and ADCs. For compact industrial audio, vibration monitoring, or acoustic diagnostic nodes, 128KB Flash typically holds the DSP library plus the application. Compared with a floating-point MCU or DSP, expect to invest in Q15/Q31 fixed-point implementation effort, but gain lower cost, lower power, and hard real-time determinism.
Recommended
Touch Sensing and Human Interface
The DSPIC33EP128GM710T-I/PF implements capacitive touch interfaces using its CTMU, which injects a precise constant charge into touch pads and measures charge time for reliable, drift-compensated key, slider and proximity detection. Because the CTMU shares die temperature compensation with the ADC, measurements remain stable across the -40C to +85C industrial range. The 100-pin TQFP offers ample remappable pins to drive LEDs, segments or small displays alongside the touch array, and 70 MIPS headroom runs debounce, filtering and gesture detection in firmware. The Peripheral Pin Select feature simplifies routing touch channels on dense HMI PCBs. For high-channel-count designs, budget ADC scan time per channel to maintain responsive sampling rates.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128GM710T-I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128GM710-I/PF | DSPIC33EP128GM710T-E/PF | DSPIC33EP64GM710T-I/PF | DSPIC33EP256GM710T-I/PF |
|---|---|---|---|---|---|
| Package | 100-TQFP (14 x 14 mm) | 100-TQFP (14 x 14 mm) - same | 100-TQFP (14 x 14 mm) - same | 100-TQFP (14 x 14 mm) - same | 100-TQFP (14 x 14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 128KB (43K x 24) | 128KB (43K x 24) | 128KB (43K x 24) | 64KB | 256KB |
| RAM | 16KB | 16KB | 16KB | 16KB | 16KB |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| MCPWM Channels | 12 | 12 | 12 | 12 | 12 |
| On-chip Op-Amps | 4 | 4 | 4 | 4 | 4 |
| Packaging | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tape & Reel |
Key Differentiators
- Broadest peripheral set in the 100-pin GM710 family for the same footprint (vs DSPIC33EP64GM710T-I/PF)
- Cost-optimized capacity point vs 256KB sibling (vs DSPIC33EP256GM710T-I/PF)
- Tape-and-reel packaging for high-volume assembly (vs DSPIC33EP128GM710-I/PF)
- Standard industrial temperature rating (vs DSPIC33EP128GM710T-E/PF)
Design Notes
The dsPIC33EP core requires a regulated VDDCORE in addition to VDD; follow the family datasheet 70000689d power connections exactly - do not tie VDDCORE to VDD unless the datasheet for your voltage configuration says so. Place 100nF ceramic decoupling capacitors at every VDD/VDDCORE pin pair with a bulk 10uF per supply domain. Total current depends on core clock; estimate budget from the datasheet typical IDD at 70 MIPS rather than assuming, since operating current scales steeply with frequency.
Exploit Peripheral Pin Select (PPS) during layout, not after: assign UART/SPI/IC/OC functions to RPn pins before routing so the 100-TQFP escape pattern avoids cross-under traces. Keep the QEI and MCPWM feedback traces away from inverter switching nodes; the 100-pin TQFP 0.5mm pitch leaves limited routing channels, so plan the PWM-to-gate-driver fanout on inner layers with ground reference planes adjacent.
The T suffix means tape-and-reel only - you cannot buy small tray quantities of this exact suffix; if you need prototyping quantities, order the tray-packaged DSPIC33EP128GM710-I/PF instead (identical die). Also, the device runs at 3.0-3.6V: connecting a 5V-supplied peripheral directly to remappable pins risks overvoltage on RPn pins - check 5V-tolerant ratings in the datasheet IO tables before interfacing.
Compliance Information
Verified web data (DigiKey/Mouser/LCSC/Octopart snippets) did not include explicit RoHS/REACH/lead-free certificate statements for this MPN. Microchip standard production parts of this family are typically lead-free/RoHS, but no certificate value appeared in the provided data - obtain compliance documents from microchip.com or distributor compliance tabs.
