DSPIC33EP128GM706-E/PT - 16-bit 60 MIPS DSC 128KB | Microchip
MPN: DSPIC33EP128GM706-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.45 | $7.45 |
| 10 | $6.95 | $69.50 |
| 100 | $6.5 | $650.00 |
| 500 | $6.1 | $3,050.00 |
| 1,000 | $5.72 | $5,720.00 |
DSPIC33EP128GM706-E/PT Overview
A digital signal controller combines the control peripherals of a microcontroller with the math engine of a DSP on a single chip. In the semiconductor hierarchy, the dsPIC33EP sits between general-purpose 16-bit MCUs (such as the PIC24 family) and dedicated DSPs, making it a power-management-friendly choice for embedded control loops that need fast multiply-accumulate operations without the complexity of an external DSP.
Key features include the dsPIC33E core executing 16-bit instructions with DSP multiply-accumulate support, 3.3V operation, two on-chip operational amplifiers, 8 capture/8 compare channels, 4 quadrature encoder interfaces (QEI), 2 CAN modules for industrial networking, and multiple UART/SPI/I2C serial ports. The -E suffix grades the device for extended ambient temperatures up to +125C, above the industrial -I grade limit of +85C.
Architecturally, the device uses a Harvard bus structure with separate program and data paths, supporting simultaneous instruction fetch and operand access that sustains the 60 MIPS rating across a 3.3V supply. Flash program memory is self-programmable for field updates, and the family shares pin-compatible packaging across memory tiers, which simplifies BOM migrations from 64KB or 256KB variants.
Typical applications include precision brushless DC and PMSM motor control (using the QEI inputs, PWM compares, and on-chip op-amps for current sensing), automotive auxiliary systems rated for elevated ambient temperature, digital power supplies and PFC stages, and industrial control nodes leveraging the dual CAN buses.
A key design consideration is power supply quality: like all dsPIC33EP devices, this controller requires its dedicated VDD/VSS pairs, VCAP and VDDCORE decoupling per the manufacturer datasheet, and PGECx/PGEDx pairs must be routed as matched pairs for ICSP programming.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP128GM706-E/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 DSPIC33EP128GM706-E/PT (same form factor and footprint) — differing in Max CPU Speed, Package, Quadrature Encoder Interfaces, RAM, CAN Modules.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128GM706-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP128GM306-E/PT
✅ Drop-In✓ In Stock
$6.15 / Unit
View Datasheet →DSPIC33EP256GM706-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.2 / Unit
View Datasheet →DSPIC33EP64GM706-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128GP706-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128GM706-E/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit DSC core |
| Max CPU Speed | 60 MIPS |
| Program Memory (Flash) | 128KB (43K x 24) |
| RAM | 16KB |
| Supply Voltage | 3.3 V |
| Package | 64-TQFP (10x10 mm), 0.5 mm pitch |
| Operating Temperature | -40C to +125C (E grade) |
| CAN Modules | 2 |
| Quadrature Encoder Interfaces | 4 (QEI) |
| Capture/Compare Channels | 8 input capture / 8 output compare |
| On-chip Op-Amps | 2 |
| Mounting Type | Surface Mount |
| Architecture | Harvard, 16-bit, DSP-enhanced |
| Programming Interface | ICSP via PGECx/PGEDx pairs |
| Packaging | Tray |
DSPIC33EP128GM706-E/PT 64-tqfp (10x10 mm), 0.5 mm pitch Pin Configuration Guide
Pin configuration for DSPIC33EP128GM706-E/PT (64-tqfp (10x10 mm), 0.5 mm pitch 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 DSPIC33EP128GM706-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128GM706-E/PT is suitable for 6 applications: Precision BLDC/PMSM Motor Control, Digital Power Supplies and PFC, Automotive Auxiliary Control Units, Industrial Automation and CAN Networking, Sensing and Signal Conditioning, Robotics and Motion Systems.
Precision BLDC/PMSM Motor Control
The DSPIC33EP128GM706-E/PT is purpose-built for field-oriented control (FOC) of brushless DC and permanent-magnet synchronous motors. The 60 MIPS DSP core with single-cycle MAC instructions executes current and speed loop mathematics deterministically at PWM frequencies of 20 kHz and above, while 4 QEI interfaces decode incremental encoder feedback. The 2 on-chip op-amps amplify shunt-resistor phase current signals before the ADC, reducing external component count, and 8 output compare channels generate complementary PWM with dead time. The -40C to +125C grade tolerates sealed drive enclosures. Estimated benefit: external analog front-end reduced to shunts plus RC filters in typical 3-shunt designs.
Recommended
Digital Power Supplies and PFC
In switch-mode power supplies, PFC stages, and DC-DC converters, this DSC closes voltage and current loops digitally. The 60 MIPS core supports average-current-mode control with DSP filtering, the 8 output compares drive multi-phase PWM stages with cycle-by-cycle current limiting, and the ADC samples in synchronization with PWM triggers to eliminate switching noise in readings. Dual CAN modules allow power supplies to participate in managed power systems and report telemetry. Compared with analog control ICs, the DSC enables soft-start profiles, fault logging, and adaptive dead-time tuning in firmware. The trade-off versus a dedicated analog controller is firmware development effort, offset by design reuse across power ratings.
Recommended
Automotive Auxiliary Control Units
The -40C to +125C ambient rating of the -E/PT grade qualifies this DSC for automotive auxiliary electronics: pump and fan controllers, actuators, valve drivers, and sensor fusion nodes mounted in hot under-hood or enclosed locations. Dual CAN 2.0B modules interface directly with vehicle buses for diagnostics and command traffic, and the 128KB Flash accommodates bootloader plus application with field-update capability. Note that this standard -E part is not the AEC-Q100-qualified automotive catalogue variant; for designs with formal automotive qualification requirements, verify the appropriate qualified part number with Microchip. For industrial machinery sharing vehicle-like CAN networks, the same architecture applies directly.
Recommended
Industrial Automation and CAN Networking
Factory automation nodes benefit from the DSPIC33EP128GM706-E/PT combination of two CAN modules, multiple UART/SPI/I2C ports, and abundant timers. One CAN port handles the plant network while the second services a local drive or sensor segment, eliminating an external CAN controller. The 60 MIPS core runs PID loops for process control, and 8 input capture channels timestamp encoder or sensor events with high resolution. Extended -40C to +125C operation suits control cabinets mounted on machinery exposed to ambient swings. Flash self-programming supports in-field firmware updates over CAN. Typical companion devices are CAN transceivers and isolated gate drivers from any major supplier.
Recommended
Sensing and Signal Conditioning
With 2 on-chip operational amplifiers, multiple ADC channels, and a DSP core capable of running FIR/IIR filters in real time, this DSC consolidates sensor signal chains that traditionally need separate op-amp and MCU stages. The internal op-amps condition bridge or shunt signals before conversion, and firmware filters extract usable signals from noisy transducers such as pressure bridges, current shunts, and ultrasonic receivers. The -E temperature grade supports outdoor and engine-bay sensing hardware. Estimated benefit: reduced BOM count versus discrete amplifier-plus-MCU designs, at the cost of analog performance limits inherent to integrated op-amps - precision metrology may still need external amplifiers.
Recommended
Robotics and Motion Systems
Multi-axis robotic joints demand synchronized motor control and encoder processing, which the 4 QEI interfaces and 8 capture channels of this DSC address directly. A single device can coordinate two axes with full FOC control each, or manage one axis while handling trajectory interpolation and CAN-based inter-axis communication over its dual CAN modules. The 60 MIPS core leaves headroom for jerk-limited motion profiling in the same firmware that runs the control loops. The -40C to +125C rating tolerates joint-mounted electronics near motors. Existing motor-control firmware libraries from Microchip's dsPIC33E ecosystem port directly, shortening development cycles for motion platforms.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128GM706-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128GM706-I/PT | DSPIC33EP128GM306-E/PT | DSPIC33EP256GM706-E/PT | DSPIC33EP64GM706-E/PT | DSPIC33EP128GP706-E/PT |
|---|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS |
| Flash Program Memory | 128KB (43K x 24) | 128KB (43K x 24) | 128KB (43K x 24) | 256KB (86K x 24) | 64KB (22K x 24) | 128KB (43K x 24) |
| RAM | 16KB | 16KB | 16KB | 16KB | 16KB | 16KB |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| Peripheral Family (CAN/QEI/Op-Amps) | GM7: 2 CAN, 4 QEI, 2 op-amps | GM7 - identical | GM3 - similar set, verify CAN/analog config | GM7 - identical | GM7 - identical | GP - general purpose mix differs |
Key Differentiators
- Extended -40C to +125C temperature grade at standard price tier (vs DSPIC33EP128GM706-I/PT)
- Motor-control peripheral density (4 QEI + 2 op-amps + dual CAN) (vs DSPIC33EP128GP706-E/PT)
- Flash upgrade path without PCB change (vs DSPIC33EP64GM706-E/PT)
Design Notes
The 3.3V supply must handle core switching current at 60 MIPS; decouple every VDD pin with 0.1uF ceramic capacitors placed within 2 mm of the pins, plus bulk 10uF per supply rail. Install the datasheet-specified VCAP/VDDCORE capacitor and do not substitute value or dielectric - core stability depends on it. Estimated current budget: at full 60 MIPS operation, a dsPIC33EP core plus peripherals typically draws in the tens of milliamps from the 3.3V rail; verify against the datasheet current-consumption tables for your exact clock configuration.
This device provides several PGECx/PGEDx pairs for ICSP programming and debugging. Per Microchip programming guidance (e.g., the NSDSP dsPIC33EP128GM706 support notes), you may use any pair but ICSPCLK and ICSPDAT must come from the same numbered pair - PGEC2 with PGED2, never mixed. Route each intended pair as short, matched traces to a 5-pin programming header, keeping them away from PWM, CAN, and switching power nodes. Connect all VDD and VSS pins; unused pins should follow the datasheet I/O configuration table.
The -E grade guarantees operation to +125C ambient, so thermal budgeting matters in sealed motor drive or under-hood enclosures. Estimated: TQFP-64 packages typically present theta_JA in the 40-50 C/W range on a standard 4-layer board (confirm the exact value in the Microchip datasheet thermal tables - do not use this estimate for sign-off). At an estimated 50 mA from 3.3V, dissipation is roughly 0.17 W, giving about 7-8 C junction rise - comfortable. But any circuitry driving heavy loads from the same board must be thermally assessed separately.
Compliance Information
The -E/PT is an extended-temperature commercial-grade part; it is not the AEC-Q100-qualified automotive catalogue variant. RoHS/REACH status not explicitly stated in the provided web data - verify on the Microchip product page. Lead-free construction per Microchip standard recent-production policy.
