DSPIC33EV32GM102-I/SS - 16-bit 5V DSC, 32KB Flash | Microchip
MPN: DSPIC33EV32GM102-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.72 | $3.72 |
| 10 | $3.35 | $33.50 |
| 100 | $2.95 | $295.00 |
| 500 | $2.66 | $1,330.00 |
| 1,000 | $2.42 | $2,420.00 |
DSPIC33EV32GM102-I/SS Overview
A digital signal controller combines the computational architecture of a digital signal processor - single-cycle MAC, DSP multiply-accumulate instructions, dual operand fetch - with the peripheral integration and control-flow features of a microcontroller. In the power-management hierarchy, the DSC sits above a general-purpose MCU and below a dedicated DSP, making it the preferred choice for closed-loop control systems such as motor drives, digital power supplies, and automotive sensor interfaces.
Key features of the dsPIC33EV family include a robust 5V operating range that directly interfaces with 12V automotive and industrial domains through simple dividers, an on-chip CAN 2.0B module for vehicle networks, SENT and PWM peripherals for sensor and actuator control, integrated op-amps and advanced analog features that reduce external component count, and Peripheral Pin Select (PPS) for flexible digital peripheral routing. Four DMA channels offload data movement, and nine timers support complex sequencing tasks.
The architecture runs from a 60 MHz clock (per distributor listings), supports low-power sleep and idle modes, and includes code-eration and safety features suited to harsh-environment operation at -40C to +85C (industrial, the -I temperature grade). The 28-SSOP package provides a compact 0.209 inch (5.30 mm) body width with a 0.65 mm lead pitch, suitable for reflow assembly.
Typical applications include brushless DC and PMSM motor control, automotive body and powertrain auxiliary nodes with CAN connectivity, digital LED lighting ballasts, and industrial sensors using the SENT interface.
When designing, note that while the core is 5V tolerant in-domain, pin current limits and the 5.5V absolute maximum supply must be respected, and CAN transceivers must be added externally.
This page synthesizes verified distributor data, drop-in same-family alternatives, pinout guidance, and practical design notes not found on a single manufacturer or distributor page.
Drop-in alternatives for DSPIC33EV32GM102-I/SS — 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 DSPIC33EV32GM102-I/SS (same form factor and footprint) — differing in Operating Temperature, Package, Communication Interfaces, Core Architecture, Peripheral Pin Select.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV32GM002-I/SS
✅ Drop-In✓ In Stock
$2.78 / Unit
View Datasheet →DSPIC33EV64GM102-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV128GM102-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV64GM002-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV128GM002-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.64 / Unit
View Datasheet →DSPIC33EV32GM102-I/SSVAO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EV32GM102-I/SS Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC DSC |
| Max Clock Frequency | 60 MHz (listed on distributor page); family core up to 70 MIPS |
| Program Memory (Flash) | 32 KB (11K x 24-bit instructions) |
| RAM | 4 KB |
| Operating Voltage | 5 V (dsPIC33EV family core domain) |
| DMA Channels | 4 |
| Timers | 9 |
| CAN | CAN 2.0B module (GM102 variant) |
| SENT Interface | Yes (per family feature set) |
| PWM | On-chip PWM (family feature) |
| Peripheral Pin Select | Yes (PPS, remappable RPn pins) |
| Package | 28-SSOP (5.30 mm body width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial, -I grade) |
| Technology | CMOS |
| Typical Applications Focus | Appliances, industrial, automotive (harsh environments) |
DSPIC33EV32GM102-I/SS Pin Configuration
| Pin 1 | MCLR — Master clear reset (active low), programming voltage input |
| Pin 2 | AN0/RB0 — Analog input 0 / digital I/O RB0 |
| Pin 3 | AN1/RB1 — Analog input 1 / digital I/O RB1 |
| Pin 4 | AN2/RB4 — Analog input 2 / digital I/O RB4 |
| Pin 5 | AN3/RB5 — Analog input 3 / digital I/O RB5 |
| Pin 6 | VSS — Ground reference |
| Pin 7 | OSC1/CLKI — Crystal oscillator input / external clock input |
| Pin 8 | OSC2/CLKO — Crystal oscillator output / clock output |
| Pin 9 | RB6 — Digital I/O (RTCC alarm in family documentation) |
| Pin 10 | RB8 — Digital I/O (I2C SDA2 remappable) |
| Pin 11 | RB9 — Digital I/O (I2C SCL2 remappable) |
| Pin 12 | RB10 — Digital I/O / In-Circuit Serial Programming clock (PGEC2) |
| Pin 13 | RB11 — Digital I/O / In-Circuit Serial Programming data (PGED2) |
| Pin 14 | VDD — Positive supply |
| Pin 15 | RB12 — Digital I/O (JTAG TCK in family documentation) |
| Pin 16 | RB13 — Digital I/O (JTAG TDI) |
| Pin 17 | RB14 — Digital I/O (JTAG TDO) |
| Pin 18 | RB15 — Digital I/O / analog input 10 (JTAG TMS) |
| Pin 19 | RA0 — PWM output / external interrupt 1 |
| Pin 20 | RA1 — PWM output / quadrature encoder input |
| Pin 21 | RA2 — PWM output / quadrature encoder input |
| Pin 22 | RA3 — PWM output / encoder index |
| Pin 23 | RF3 — Remappable peripheral pin (RP15) |
| Pin 24 | RF2 — Remappable peripheral pin (RP14) |
| Pin 25 | RC3 — Remappable peripheral pin (RP3) / programming data (PGED1) |
| Pin 26 | RC2 — Remappable peripheral pin (RP2) / programming clock (PGEC1) |
| Pin 27 | RC1 — Remappable peripheral pin (RP1) |
| Pin 28 | VDD — Positive supply |
Typical Applications
DSPIC33EV32GM102-I/SS is suitable for 6 applications: Brushless DC / PMSM Motor Control, Automotive Body and Auxiliary CAN Nodes, Digital Power Supplies and Lighting Ballasts, Industrial Sensor Interfaces with SENT, Appliance Control Boards, Embedded Motor-Control Gateway and Training Platforms.
Brushless DC / PMSM Motor Control
The DSPIC33EV32GM102-I/SS fits motor control because its dsPIC33EV core executes field-oriented control (FOC) loops with single-cycle DSP multiply-accumulate instructions at up to 70 MIPS, while on-chip PWM generators produce the complementary gate signals for three-phase inverters and integrated op-amps amplify shunt current-sense signals without external amplifiers. The QEI inputs on RA0-RA3 accept quadrature encoder feedback directly. In a typical design the DSC runs a 10-20 kHz current loop from 5V logic, and the 4 DMA channels stream ADC samples without CPU intervention. Because the entire control loop lives in one 32KB image, this part suits BLDC fans, pumps, and small appliance drives where the CAN module additionally links the drive to a supervisory vehicle or industrial bus.
Recommended
Automotive Body and Auxiliary CAN Nodes
The on-chip CAN 2.0B controller of the DSPIC33EV32GM102 makes it a compact single-chip solution for automotive auxiliary nodes such as blower controls, window lifts, and sensor hubs, paired with an external CAN transceiver. The 5V core tolerates the noisy automotive 12V domain with simple conditioning, and the SENT peripheral decodes SAE J2716 single-wire sensor data increasingly used in vehicles. The -I grade covers -40C to +85C, and the automotive-ordered /SSVAO variant is available when customer-specific screening is required. With 32KB Flash, the part holds the control firmware plus a basic UDS/OBD-style CAN diagnostic layer, and the 28-SSOP footprint keeps the PCB area minimal for cost-sensitive body-electronics modules.
Recommended
Digital Power Supplies and Lighting Ballasts
Digital power conversion benefits from the dsPIC33EV 70 MIPS DSP core and high-resolution PWM needed for voltage-mode or peak-current-mode control of flyback, boost, and LLC stages. The DSPIC33EV32GM102-I/SS executes the compensation loop with DSP MAC instructions while its ADC, fed through an integrated op-amp, samples output voltage and current; 4 DMA channels move conversion results without stealing cycle time. The 5V domain simplifies interface with standard comparator and driver ICs, and the 32KB Flash leaves room for soft-start sequencing, protection state machines, and PMBus-style serial reporting on a UART. Typical uses include LED ballasts, battery chargers, and auxiliary telecom power bricks where the industrial temperature grade and low per-unit cost matter.
Recommended
Industrial Sensor Interfaces with SENT
Industrial and automotive position, pressure, and angle sensors increasingly use the SENT (SAE J2716) single-wire interface, which the dsPIC33EV32GM102 decodes natively in hardware, offloading timing-critical nibble capture from software. The integrated op-amps condition analog sensor outputs into the ADC input range, and the 16-bit DSP core performs linearization, filtering, and diagnostics on the sampled data at 70 MIPS. The remappable Peripheral Pin Select lets the designer place UART or SPI endpoints on the most convenient RPn pins, easing layout of the 28-SSOP footprint. Running from 5V, the DSC directly reads 5V-output ratiometric sensors without level shifting, making it a compact front-end for factory-floor and off-highway sensing modules.
Recommended
Appliance Control Boards
Home appliances - washing machines, dishwashers, range hoods, and HVAC blowers - combine motor drives, user interfaces, and safety monitoring in a noisy environment, exactly the harsh-environment profile Microchip cites for the dsPIC33EV family. The DSPIC33EV32GM102-I/SS drives the motor PWM, reads door-switch and temperature inputs on RB0-RB15, services a capacitive-touch or encoder user interface, and reports status over a UART to a display board, all from 32KB Flash and 4KB RAM. The 5V operating domain matches legacy appliance power supplies and sensor outputs, reducing component count, while the industrial -40C to +85C rating and CMOS process handle uncontrolled indoor-outdoor installations. The 28-SSOP package suits the compact single-sided control boards typical of appliance manufacturing.
Recommended
Embedded Motor-Control Gateway and Training Platforms
The DSPIC33EV32GM102 serves well as the controller in development signal boards and training platforms: Microchip's own dsPIC33EV signal boards interface the family through PIM connectors, and the 28-pin device is the cost-minimal target once algorithms proven on the dsPIC33EV256GM106 Motor Control PIM (MA330036) are ported to production. With the MPLAB X IDE, free XC16 compiler, and low-cost SNAP debugger, students and small teams can implement FOC, CAN diagnostics, and SENT decoding for roughly three dollars of silicon. The Peripheral Pin Select feature means the same PCB supports UART, SPI, I2C, or PWM pin assignment changes in firmware, which is valuable for iterative prototypes and educational kits where the 28-SSOP footprint is populated once and reconfigured in software.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV32GM102-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV32GM002-I/SS | DSPIC33EV64GM102-I/SS | DSPIC33EV128GM102-I/SS | DSPIC33EV32GM102-I/SSVAO |
|---|---|---|---|---|---|
| Package | 28-SSOP (5.30 mm) | 28-SSOP - same footprint | 28-SSOP - same footprint | 28-SSOP - same footprint | 28-SSOP - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 32 KB | 32 KB | 64 KB | 128 KB | 32 KB |
| RAM | 4 KB | 4 KB | 8 KB | 16 KB | 4 KB |
| CAN Module | Yes (CAN 2.0B) | No | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) |
| Core Speed | 60 MHz (up to 70 MIPS) | 60 MHz (up to 70 MIPS) | 60 MHz (up to 70 MIPS) | 60 MHz (up to 70 MIPS) | 60 MHz (up to 70 MIPS) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C (automotive-ordered variant) |
| DMA Channels / Timers | 4 DMA / 9 timers | 4 DMA / 9 timers | 4 DMA / 9 timers | 4 DMA / 9 timers | 4 DMA / 9 timers |
Key Differentiators
- CAN connectivity in the smallest-footprint family member (vs DSPIC33EV32GM002-I/SS)
- Native 5V operation reduces level-shifting bill of materials (vs STM32-class 3.3V MCUs (functional, not drop-in comparison))
- In-footprint memory scalability (vs DSPIC33EV128GM102-I/SS)
- Automotive screening option (vs DSPIC33EV32GM102-I/SSVAO)
Design Notes
Provide a clean 5V supply with a 100 nF ceramic capacitor placed within 5 mm of each VDD pin (pins 14 and 28) plus 4.7-10 uF of bulk capacitance near the IC. Because the dsPIC33EV core operates at 5V, ensure the absolute maximum supply of 5.5V from the family datasheet (DS70005144H) is never exceeded, even during automotive load-dump or bench-supply transients - a series protection element or clamp is prudent in 12V-domain systems. Brown-out and configurable reset behavior should be enabled in configuration words to guarantee deterministic startup.
Use the ICSP programming pins (PGEC/PGED - typically RC2/RC3 in their PGEC1/PGED1 roles) with a standard 5-pin header brought out on every production PCB; the Peripheral Pin Select feature means these pins can be reused as UART or GPIO in the application, but keep the ICSP footprint intact for factory programming with SNAP, PICkit 4, or ICD 4. Keep the crystal (OSC1/OSC2, pins 7-8) loop short with guard ground, and route PWM outputs (RA0-RA3) away from the analog inputs AN0-AN3 to protect ADC accuracy in motor-drive layouts.
The most common migration mistake is confusing family members: the GM102 includes the CAN module while the GM002 does not - code using the CAN peripheral will not build on the GM002. Similarly, the /SP ordering code is a 28-PDIP and /MM is a QFN; only the /SS code matches the 28-SSOP footprint. Finally, remember that 32KB Flash is measured in 24-bit instruction words (11K words); estimate code size in instructions, not bytes, when budgeting headroom, and reserve a bootloader region early if field updates are planned.
Estimated: at 60 MHz with all peripherals active, dsPIC33EV-class devices typically draw on the order of tens of milliamps, i.e. well under 0.3 W dissipation from a 5V rail. In a 28-SSOP package with a nominal theta_JA in the 100+ C/W range (exact value per the family datasheet thermal tables), a 0.3 W load implies roughly a 30C junction rise over ambient - comfortable within the -40C to +85C industrial rating without heatsinking or copper pour. Verify against the datasheet theta_JA table for your exact board stack-up.
Compliance Information
Compliance statuses were not present in the verified web data; consult the Microchip product page for current RoHS/REACH declarations. AEC-Q100 status marked not_qualified for the standard -I part; automotive-ordered variants (e.g., /SSVAO) exist for automotive programs.
