DSPIC33EV128GM102-I/MM - 70MIPS 5V DSC, 128KB Flash | Microchip
MPN: DSPIC33EV128GM102-I/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.18 | $41.80 |
| 100 | $3.71 | $371.00 |
| 500 | $3.35 | $1,675.00 |
| 1,000 | $2.98 | $2,980.00 |
DSPIC33EV128GM102-I/MM Overview
A digital signal controller combines the compute architecture of a microcontroller with DSP engine features such as a barrel shifter, hardware multiply-accumulate, and DMA. Within the power-management hierarchy of embedded systems, the DSC sits above general-purpose MCUs for math-intensive, real-time control loops, and the dsPIC33EV family extends this capability into harsh, electrically noisy 5V environments such as automotive and industrial equipment.
Key differentiating features include the 5V-tolerant operating range (5.5V maximum VDD), six motor-control PWM channels, three on-chip operational amplifiers, a CTMU (Charge Time Measurement Unit) for capacitive touch and time-domain measurements, and SENT (SAE J2716) peripheral support for automotive sensor interfaces. ECC flash protects code integrity in safety-relevant designs, and the device is positioned by Microchip as Functional Safety (FuSa) capable.
Architecturally, the core executes the modified Harvard instruction set with two 40-bit accumulators and four DMA channels, while seven timers (including 16/32-bit and CCP-based timers) handle timing tasks. The CAN module with DMA offload enables robust vehicle and industrial networking without CPU bottleneck. The 70 MIPS figure corresponds to a 60 MHz-class instruction execution environment per third-party listings, making it suitable for field-oriented motor control and digital power conversion.
Typical applications include brushless DC and PMSM motor control, automotive sensor and touch-control units, power inverters, battery chargers, and appliance control boards that must survive noisy 12V/24V electrical systems without an external 3.3V rail.
Design-wise, use any PGECx/PGEDx pin pair consistently for ICSP programming and connect all VDD/VSS pairs; the VCAP pin requires the datasheet-specified capacitor for the internal regulator. Budget GPIO carefully on the 28-pin package when using CAN, SENT, and multiple op-amp channels simultaneously.
This page adds value beyond the datasheet by consolidating distributor stock signals, same-footprint family alternatives, pricing tiers, and practical layout and programming guidance in one AI-citable reference.
Drop-in alternatives for DSPIC33EV128GM102-I/MM — 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 DSPIC33EV128GM102-I/MM (same form factor and footprint) — differing in Operating Temperature, Package, Program Memory (Flash), Core Architecture, Motor Control PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV256GM102-I/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.1 / Unit
View Datasheet →DSPIC33EV64GM102-I/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.05 / Unit
View Datasheet →DSPIC33EV32GM102-I/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.02 / Unit
View Datasheet →DSPIC33EV128GM102-H/MM
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP64MC502-E/MM
✅ Drop-In✓ In Stock
$3.05 / Unit
View Datasheet →DSPIC33EV128GM102-I/MM Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC |
| Maximum CPU Speed | 70 MIPS |
| Program Memory (Flash) | 128 KB (43K x 24) |
| Flash ECC | Yes |
| Data SRAM | 8 KB |
| Supply Voltage Range | 5 V nominal (5V-class) |
| CAN Controller | CAN 2.0B with DMA |
| Motor Control PWM | 6 channels |
| On-chip Op Amps | 3 |
| SENT Peripheral | Yes (SAE J2716) |
| CTMU | Yes |
| DMA Channels | 4 |
| Timers | 7 |
| Barrel Shifter / DSP MAC | Yes |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 28-QFN-S (6x6 mm) exposed pad |
| Mounting Type | Surface Mount |
| Programming Interface | ICSP (PGECx/PGEDx pairs) |
| Functional Safety Support | FuSa-capable (per Microchip) |
DSPIC33EV128GM102-I/MM 28-qfn-s (6x6 mm) exposed pad Pin Configuration Guide
Pin configuration for DSPIC33EV128GM102-I/MM (28-qfn-s (6x6 mm) exposed pad 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 DSPIC33EV128GM102-I/MM.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EV128GM102-I/MM is suitable for 6 applications: Automotive Sensor and Touch Control Units, BLDC and PMSM Motor Control, Industrial Automation and Control Panels, Appliance Control Boards, Digital Power Conversion and Battery Chargers, Embedded Sensing and Signal Processing Nodes.
Automotive Sensor and Touch Control Units
Microchip positions the dsPIC33EV family specifically for automotive sensors and touch/control units that must survive noise and vibration in harsh vehicle environments. The DSPIC33EV128GM102-I/MM's 5V-tolerant I/O directly interfaces with 12V-domain sensor signals through simple conditioning, while the SENT (SAE J2716) peripheral provides a standard automotive sensor link and the CTMU supports robust capacitive touch detection. The CAN 2.0B controller with DMA offload maintains deterministic network communication without burdening the 70 MIPS core. ECC flash protects code integrity against automotive EMI. This combination lets a single 28-QFN-S device replace separate MCU, transceiver-adjacent logic, and touch ICs in body-control and sensor-node designs.
Recommended
BLDC and PMSM Motor Control
The DSPIC33EV128GM102-I/MM is purpose-built for single-chip motor drives: the 70 MIPS DSP core executes field-oriented control (FOC) with hardware MAC and barrel-shifter acceleration, six motor-control PWM channels drive three-phase inverters with complementary outputs and dead-time, and three on-chip op amps condition shunt-resistor current feedback without external amplifiers. Running directly from a 5V rail in industrial 24V systems simplifies the power tree. The 4-channel DMA moves ADC results efficiently for real-time current loops. Compared with a general-purpose MCU plus external op-amp board, this integration reduces BOM count and loop latency, enabling faster, quieter, more efficient motor control in appliances, pumps, fans, and power tools.
Recommended
Industrial Automation and Control Panels
In factory automation, the DSPIC33EV128GM102-I/MM serves as a compact control node where 5V I/O robustness against transients and long cable runs is essential. Its CAN 2.0B interface links distributed nodes on industrial buses, while seven timers and 70 MIPS of DSP throughput handle encoder counting, sequencing, and control-loop mathematics. The ECC-protected 128KB flash accommodates substantial application firmware including communication stacks. The 28-QFN-S 6x6 mm exposed-pad package supports thermally robust solder joints on vibration-prone machinery. Microchip explicitly lists appliances and industrial applications as target markets for this family, and FuSa positioning assists safety-relevant control designs. Companion CAN transceivers and LDOs complete a minimal, hardened node design.
Recommended
Appliance Control Boards
Home and commercial appliances demand controllers that tolerate noisy motor, relay, and mains-cross environments while supporting capacitive touch user interfaces - exactly the dsPIC33EV family's stated target. The DSPIC33EV128GM102-I/MM drives the appliance's motor (using its 6 PWM channels and on-chip op amps for current sensing), reads touch inputs via the CTMU, and communicates over CAN or UART to display boards. 5V operation means fewer level-shift stages in designs with legacy 5V sensors. The 128KB ECC flash holds application code plus OTA-style update headroom. Its FuSa-capable designation supports appliance safety functions such as over-temperature and stall detection, consolidating user interface, drive, and safety logic into one 28-pin device.
Recommended
Digital Power Conversion and Battery Chargers
The DSPIC33EV128GM102-I/MM implements digital power loops for battery chargers, LED drivers, and DC-DC converters. Its 70 MIPS core with DSP MAC executes compensated control loops at tens of kHz of switching frequency with margin, the high-resolution PWM channels shape converter waveforms with programmable dead-time, and the fast ADC path plus DMA closes current/voltage loops without CPU overhead. On-chip op amps amplify shunt currents directly. 5V I/O simplifies gate-driver interfaces in industrial and automotive charger systems. Compared with analog control, this DSC enables adaptive charging profiles, fault logging, and CAN-based charging communication in one device. The 128KB ECC flash stores complex charging state machines and safety firmware required by modern battery management requirements.
Recommended
Embedded Sensing and Signal Processing Nodes
For sensor-intelligent nodes, the DSPIC33EV128GM102-I/MM combines DSP signal processing with analog integration: three op amps buffer and amplify sensor signals on-chip, the CTMU measures capacitance or time-of-flight, and the 70 MIPS DSP engine applies filtering (FIR/IIR) before transmission over CAN or UART. The SENT peripheral reads digital automotive sensor streams natively. 8KB SRAM and 4 DMA channels support buffering of sampled waveforms. Because the device runs at 5V, it interfaces directly with industrial and automotive sensor outputs, minimizing level conversion. The 128KB ECC flash preserves logged data and firmware integrity in electrically noisy plants, making the part a compact single-chip replacement for MCU-plus-op-amp-plus-filter discrete signal chains.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV128GM102-I/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV256GM102-I/MM | DSPIC33EV64GM102-I/MM | DSPIC33EV32GM102-I/MM | DSPIC33EV128GM102-H/MM | DSPIC33EP64MC502-E/MM |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same |
| Program Flash | 128 KB (43K x 24) | 256 KB | 64 KB | 32 KB | 128 KB | 64 KB |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 60 MIPS |
| Supply Voltage Class | 5 V | 5 V | 5 V | 5 V | 5 V | 3.3 V |
| CAN | CAN 2.0B with DMA | Yes | Yes | Yes | Yes | Yes (ECAN) |
| Temperature Grade | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | H grade (different range) | -40C to +125C (E) |
Key Differentiators
- 5V-tolerant operation eliminates level shifting (vs DSPIC33EP64MC502-E/MM)
- More flash headroom in the same footprint (vs DSPIC33EV64GM102-I/MM)
- Integrated SENT and CTMU automotive peripherals (vs DSPIC33EV128GM102-H/MM)
Design Notes
On the 28-QFN-S 6x6 mm exposed-pad package, solder the exposed pad to a ground copper pour with an array of thermal vias - this is both the primary ground return and the thermal path. Decouple each VDD pin with 100 nF ceramics placed within 2 mm of the pin, plus a 4.7-10 uF bulk capacitor. The VCAP pin requires the exact capacitor value and type specified in the Microchip datasheet for the internal core regulator; do not substitute a different dielectric or omit it, or the core may not start reliably.
Programming pitfalls per Microchip documentation: the device has more than one PGECx/PGEDx pair, and you must use one pair consistently - if PGEC2 is used for ICSPCLK, ICSPDAT must connect to PGED2. All VDD and VSS pins must be connected; even one unconnected pair can cause programming to fail. Reserve the chosen PGECx/PGEDx pair on your PCB header and keep high-noise traces (motor phase currents, CAN) away from these programming lines.
In automotive and appliance environments, route CAN and SENT signals as controlled pairs with ground reference and place the CAN transceiver (e.g., MCP2562) close to the DSC. Use the on-chip op amps for current sensing with short Kelvin-routed shunt connections to minimize noise pickup in motor-control loops. The 5V I/O provides wide noise margins, but ESD/TVS protection on external connectors remains necessary; the ECC flash additionally guards code integrity against single-bit upsets in noisy environments.
The device operates from a 5V-class supply, simplifying systems with 12V/24V inputs that already generate a 5V rail. Estimated: budget roughly 70-100 mA of current for the DSC at full-speed operation (verify exact figure in the datasheet electrical characteristics section) plus transceiver and actuator loads when sizing the 5V regulator. Consider MCP1700-class LDOs only for low-current analog rails, and a buck regulator such as the MCP16331 for the main 5V rail in high-power designs.
Compliance Information
Compliance statuses were not explicitly stated in the provided web data. Verify RoHS/REACH and AEC-Q100 status on the official Microchip product page (microchip.com/en-us/product/dsPIC33EV128GM102) or the compliance datasheet for the specific order code.
