DSPIC33EV64GM102-I/MM - 16-Bit 70 MIPS 5V DSC | Microchip
MPN: DSPIC33EV64GM102-I/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.35 | $4.35 |
| 10 | $3.95 | $39.50 |
| 25 | $3.7 | $92.50 |
| 100 | $3.42 | $342.00 |
| 1,000 | $3.05 | $3,050.00 |
DSPIC33EV64GM102-I/MM Overview
A digital signal controller combines the computational architecture of a digital signal processor (DSP) with the peripheral set and ease of use of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC sits between general-purpose MCUs and dedicated DSP chips: it executes digital control loops, power-conversion algorithms, and motor-control mathematics while simultaneously managing communication, sensing, and supervisory tasks on a single chip. The dsPIC33EV family is Microchip's 5V-tolerant entry in this category, designed for harsh electrical environments.
Key features of the DSPIC33EV64GM102 include error-correcting code (ECC) on Flash for functional-safety designs, a 16-bit DSP core with barrel shifter, on-chip operational amplifiers, high-resolution PWM modules, and a SENT peripheral compliant with automotive sensor networking. The 5V operating range eliminates level shifting when interfacing with automotive sensors and industrial 5V logic, improving noise immunity in electrically noisy environments.
Architecturally, the device belongs to the dsPIC33EV family (part of the dsPIC33 line within Microchip's 16-bit portfolio). The core executes DSP instructions such as multiply-accumulate (MAC) at 70 MIPS, supporting field-oriented control (FOC) of motors, power-factor correction, and digital power conversion. On-chip features include multiple UART, SPI, and I2C ports, a 12-bit ADC pipeline for current and voltage sampling, and comparators for fast over-current protection.
Typical applications include brushless DC and PMSM motor control in appliances, automotive body and powertrain subsystems using SENT, switched-mode power supplies, and industrial automation nodes where 5V noise immunity matters.
A key design consideration is the VCAP pin: a low-ESR capacitor must be connected to stabilize the internal 2.5V core regulator, and proper decoupling on every VDD/VSS pair is essential for EMC compliance in automotive designs.
This page synthesizes distributor availability, drop-in same-package alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EV64GM102-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 DSPIC33EV64GM102-I/MM (same form factor and footprint) — differing in Package, RoHS Status, Operating Temperature, Core Architecture, Functional Safety Support.
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No drop-in alternatives available for this product.
Request AlternativesDSPIC33EV64GM102-I/MM Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33EV DSC |
| Maximum MIPS | 70 MIPS |
| Operating Voltage | 5 V |
| Program Memory (Flash) | 64 KB (22K x 24) with ECC |
| RAM | 8 KB |
| Package | 28-QFN-S (6x6 mm) |
| Operating Temperature | -40C to +85C (I grade) |
| Peripherals | PWM, SENT, Op Amps, Advanced Analog |
| Functional Safety Support | Yes (FuSa, ECC Flash) |
| Mounting Type | Surface Mount |
| DSP Features | Barrel shifter, MAC, DSP instruction set |
| Package Dimensions | 6x6 mm body (28-QFN-S) |
| RoHS Status | Compliant (per Microchip product page) |
DSPIC33EV64GM102-I/MM Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/VREF+/RB0 — Analog input 0 / positive voltage reference / Port B |
| Pin 3 | AN1/VREF-/RB1 — Analog input 1 / negative voltage reference / Port B |
| Pin 4 | AN2/RB2 — Analog input 2 / Port B (PGD function on some mappings) |
| Pin 5 | AN3/RB3 — Analog input 3 / Port B (PGC function on some mappings) |
| Pin 6 | AN4/RB4 — Analog input 4 / Port B |
| Pin 7 | VDD — Positive supply (5 V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI/RA2 — Oscillator input / external clock input |
| Pin 10 | OSC2/CLKO/RC15 — Oscillator output / clock output |
| Pin 11 | VCAP/VDDCORE — Internal core regulator capacitor connection |
| Pin 12 | AN5/RB5 — Analog input 5 / peripheral pin select I/O / Port B |
| Pin 13 | AN6/RB6 — Analog input 6 / peripheral pin select I/O / Port B |
| Pin 14 | AN7/RB7 — Analog input 7 / peripheral pin select I/O / Port B |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Positive supply (5 V) |
| Pin 17 | AN8/RB8 — Analog input 8 / peripheral pin select I/O / Port B |
| Pin 18 | AN9/RB9 — Analog input 9 / peripheral pin select I/O / Port B |
| Pin 19 | AN10/RB10 — Analog input 10 / peripheral pin select I/O / Port B |
| Pin 20 | AN11/RB11 — Analog input 11 / peripheral pin select I/O / Port B |
| Pin 21 | AN12/RB12 — Analog input 12 / peripheral pin select I/O / Port B |
| Pin 22 | AN13/RB13 — Analog input 13 / peripheral pin select I/O / Port B |
| Pin 23 | AN14/RB14 — Analog input 14 / peripheral pin select I/O / Port B |
| Pin 24 | AN15/RB15 — Analog input 15 / peripheral pin select I/O / Port B |
| Pin 25 | AVSS — Analog ground reference |
| Pin 26 | AVDD — Analog positive supply |
| Pin 27 | PWM1L/RE0 — PWM1 low-side output / peripheral pin select I/O / Port E |
| Pin 28 | PWM1H/RE1 — PWM1 high-side output / peripheral pin select I/O / Port E |
Typical Applications
DSPIC33EV64GM102-I/MM is suitable for 6 applications: Brushless DC / PMSM Motor Control, Automotive Sensor Interfaces (SENT), Digital Power Conversion / SMPS, Appliance Control Boards, Industrial Automation Nodes, Battery Management and Charging.
Brushless DC / PMSM Motor Control
The DSPIC33EV64GM102-I/MM fits motor-control applications through its 70 MIPS 16-bit DSP core, hardware multiply-accumulate, and dedicated PWM modules with complementary outputs, dead-time insertion, and fault inputs for fast over-current shutdown. Field-oriented control (FOC) loops for brushless DC and permanent-magnet synchronous motors execute well within a single PWM period at 70 MIPS, leaving headroom for housekeeping tasks. The on-chip op amps can amplify shunt-current signals before the ADC, reducing external component count. In appliance and industrial drives, the 5V I/O directly interfaces gate-driver and Hall-sensor circuitry without level shifting, improving noise margin in electrically noisy switch-mode environments. ECC Flash protects the control firmware from single-bit upsets during long service life.
Recommended
Automotive Sensor Interfaces (SENT)
The DSPIC33EV64GM102-I/MM is directly suited to automotive sensor networking because it integrates a hardware SENT peripheral compliant with the SAE J2716 single-edge-nibble-transport interface used by automotive sensors, offloading protocol timing from software. The 5V operating range matches automotive sensor supply levels, and the -40C to +85C industrial grade covers typical cabin and engine-bay electronics environments. ECC Flash and the family's functional-safety (FuSa) positioning support safety-relevant node development. Typical uses include valve-position sensing, pressure and temperature node interfaces, and body-control subfunctions where the DSC decodes SENT input streams and translates them to LIN or CAN gateways. Noise immunity at 5V I/O thresholds improves robustness against load-dump-induced transients on harness-connected inputs.
Recommended
Digital Power Conversion / SMPS
For switched-mode power supplies, power-factor-correction stages, and DC-DC converters, the DSPIC33EV64GM102-I/MM provides high-resolution PWM outputs, fast analog comparators for cycle-by-cycle current limiting, and a 16-bit DSP pipeline for compensator mathematics. Control loops running at tens to hundreds of kHz switching frequency fit comfortably in the 70 MIPS budget, including nonlinear or predictive control enhancements. The 5V core references its ADC against 5V rails common in power supplies, simplifying signal conditioning of current-shunt voltages. The 64KB ECC Flash supports firmware-update-in-field strategies with checksum-protected images. Typical topologies include LLC half-bridge, buck battery chargers, and PFC boost stages in appliance and industrial power systems.
Recommended
Appliance Control Boards
Home appliances combine motor drives, user interfaces, and safety interlocks - exactly the mixed workload a DSC handles best. The DSPIC33EV64GM102-I/MM runs compressor or fan motor control on its DSP engine while servicing capacitive-touch inputs, UART links to displays, and relays through general-purpose I/O. Microchip explicitly targets the dsPIC33EV family at appliance applications operating in harsh electrical environments, where 5V noise immunity and robust Flash retention matter. ECC Flash protects stored firmware and calibration data over years of service, and the 8KB RAM accommodates state machines and communication buffers. Low standby modes support energy-efficiency requirements, and the QFN-28 footprint keeps control-board area compact for integration into compact appliance housings.
Recommended
Industrial Automation Nodes
In factory automation, the DSPIC33EV64GM102-I/MM serves as an intelligent node performing local signal processing - sensor filtering, PID control, simple protocol bridging - while communicating over UART, SPI, and I2C to SCADA gateways. The 70 MIPS DSP core executes real-time filtering (IIR/FIR) and control mathematics with deterministic latency, and the 5V I/O directly drives industrial optocoupler LEDs and interfaces 5V PLC logic without translation hardware. The -I temperature grade covers unconditioned cabinets, and ECC Flash maintains program integrity in electrically noisy surroundings near contactors and variable-frequency drives. Analog integration - ADC channels and on-chip op amps - enables direct connection of transducer signals, reducing board BOM in distributed I/O modules.
Recommended
Battery Management and Charging
Battery chargers and management units benefit from the DSPIC33EV64GM102-I/MM's combination of precise PWM generation for charging converters, ADC channels for voltage/current/temperature monitoring, and comparators for fast fault isolation. The 70 MIPS core runs coulomb-counting, state-of-charge estimation, and multi-stage charge-termination algorithms with margin. The 5V domain simplifies interfacing with common charger front-ends and 5V-referenced current amplifiers. Safety-relevant firmware is protected by ECC Flash, supporting functional-safety documentation for consumer and light-industrial battery systems. The small 6x6 mm QFN fits handheld charger housings, while the same-footprint Flash-upgrade path (DSPIC33EV128GM102T-I/MM) lets a single PCB carry both cost-optimized and feature-rich firmware SKUs.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV64GM102-I/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV64GM102-H/MM | DSPIC33EV128GM102T-I/MM | DSPIC33EV32GM102-I/MM | DSPIC33EP64MC502-I/MM |
|---|---|---|---|---|---|
| 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 (6x6 mm) - same footprint family, verify pin map |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 64 KB ECC | 64 KB ECC | 128 KB ECC | 32 KB ECC | 64 KB (no ECC) |
| RAM | 8 KB | 8 KB | 16 KB | 4 KB | 8 KB |
| Maximum Performance | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Voltage | 5 V family | 5 V family | 5 V family | 5 V family | 3.3 V family |
| SENT Peripheral | Yes | Yes | Yes | Yes | No |
| ECC Flash / Functional Safety | Yes (FuSa) | Yes | Yes | Yes | No |
| Operating Temperature | -40C to +85C (I grade) | Per -H grade suffix | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
Key Differentiators
- Native 5V operation for harsh environments (vs DSPIC33EP64MC502-I/MM)
- ECC Flash for functional safety (vs DSPIC33EP64MC502-I/MM)
- Same-footprint Flash upgrade path (vs DSPIC33EV128GM102T-I/MM)
Design Notes
The VCAP/VDDCORE pin (pin 11) connects to the internal 2.5V core regulator and requires the specific low-ESR capacitor value recommended in the dsPIC33EV64GM102 datasheet power section. Using an incorrect capacitance or ESR class causes brown-out resets and erratic core behavior. Add 100 nF ceramic decoupling to every VDD pin (pins 7 and 16) placed within 5 mm of each pin, plus a bulk 10 uF per supply domain. AVDD (pin 26) should be filtered with an RC or ferrite from the digital 5V rail to preserve ADC accuracy.
The 28-QFN 6x6 mm package uses a center exposed pad; connect it to a solid VSS plane with an array of thermal vias (typically 5x5 grid of 0.3 mm vias) for both grounding and heat dissipation. Preserve ICSP programming access: route MCLR, PGD, and PGC to a 5-pin programming header even in production layouts, since in-circuit debugging and field firmware updates depend on it. Keep the crystal/OSC traces (pins 9-10) short and guarded by ground when an external oscillator is used.
MCLR requires an external pull-up resistor (commonly 4.7-10 kOhm to VDD); leaving it floating causes spurious resets. Peripheral Pin Select (PPS) must be configured before UART/SPI/PWM functions appear on RPx-capable pins - unconfigured pins default to digital input, a frequent bring-up issue migrating from fixed-pin devices. When second-sourcing with the DSPIC33EV128GM102T-I/MM, note the T suffix denotes tape-and-reel packing, not electrical difference. Always verify configuration-bit settings (OSC, watchdog, code protection) match the target board before mass programming.
In motor-drive applications, PWM edge rates radiate strongly through gate-driver loops. Place the DSPIC33EV64GM102 near the gate drivers, keep the PWM output traces (pins 27-28 and PPS-mapped pins) short, and use series resistors (10-33 ohm) on PWM outputs to control edge rates if EMC testing shows emissions. Separate the analog ground region under AVSS/AVDD from high-current switching returns, joining them at a single point to prevent PWM ground bounce from corrupting ADC shunt measurements.
Compliance Information
RoHS compliant per Microchip product page and distributor listings. AEC-Q100 qualification status of this specific ordering code must be confirmed with Microchip; the dsPIC33EV family is automotive-targeted but qualification varies by ordering code and grade.
