DSPIC33EP64GP502-E/SO - 16-bit DSC, 60 MIPS, 64KB Flash | Microchip
MPN: DSPIC33EP64GP502-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.8 | $38.00 |
| 100 | $3.55 | $355.00 |
| 500 | $3.4 | $1,700.00 |
| 1,000 | $3.26 | $3,260.00 |
DSPIC33EP64GP502-E/SO Overview
A Digital Signal Controller combines the deterministic control of a microcontroller with the mathematical throughput of a DSP. In the power-management hierarchy, the dsPIC33EP family sits between general-purpose MCUs and dedicated DSPs, integrating a 16-bit pipeline core, high-speed PWM modules, and advanced analog peripherals in a single chip. This makes DSCs the default choice for closed-loop digital power and motor control systems.
Key features of the DSPIC33EP64GP502 include the 70 MIPS-class dsPIC33E core running at 60 MIPS here, an ADC configurable as 10-bit at 1.1 Msps with four sample-and-hold circuits or 12-bit at 500 ksps with one S&H, three integrated operational amplifiers, four analog comparators, a CAN module, and peripheral-triggered CTMU for charge-time measurement. Six analog inputs are available on the 28-pin device.
The advanced analog integration eliminates external op-amp stages for current-sense amplification and comparator-based protection, reducing BOM count in digital power supplies. The high-speed PWM module supports complementary outputs with dead-time insertion, essential for half-bridge and full-bridge topologies. Programmable Digital Filter and PTG (Peripheral Trigger Generator) offload timing-critical tasks from the CPU.
Typical applications include digital switched-mode power supplies, brushless DC and PMSM motor drives, battery chargers, power factor correction stages, and industrial sensing front-ends exploiting the CTMU.
A key design consideration is the 3V to 3.6V supply requirement; plan level-shifting for 5V legacy I/O, and place the analog supply decoupling per the Microchip datasheet recommendations to preserve ADC accuracy at 1.1 Msps.
This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP64GP502-E/SO — 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 DSPIC33EP64GP502-E/SO (same form factor and footprint) — differing in Package, Program Memory Size, Supply Voltage, ADC Resolution, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP64GP502-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32GP502T-E/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.42 / Unit
View Datasheet →DSPIC33EP128GP502-E/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64GP502T-E/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MC502-E/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.65 / Unit
View Datasheet →DSPIC33EP64GP502-E/SO Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit DSC |
| CPU Speed | 60 MIPS |
| Program Memory Size | 64KB (22K x 24) Flash |
| RAM Size | 8KB |
| Supply Voltage | 3 V to 3.6 V |
| Operating Temperature | -40C to +125C (Extended, E grade) |
| Package | 28-SOIC (0.295 in, 7.50 mm width) |
| Number of I/O | 21 |
| ADC Resolution | 10-bit 1.1 Msps (4 S&H) or 12-bit 500 ksps (1 S&H) |
| Analog Inputs | 6 (28-pin devices) |
| Operational Amplifiers | 3 |
| Comparators | 4 |
| Communication Interfaces | CAN, UART, SPI, I2C |
| Special Peripherals | PTG, CTMU, High-Speed PWM |
| Mounting Type | Surface Mount |
| Series | dsPIC33EP64GP502 |
DSPIC33EP64GP502-E/SO 28-soic (0.295 in, 7.50 mm width) Pin Configuration Guide
Pin configuration for DSPIC33EP64GP502-E/SO (28-soic (0.295 in, 7.50 mm width) 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 DSPIC33EP64GP502-E/SO.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP64GP502-E/SO is suitable for 6 applications: Digital Switch-Mode Power Supplies, Brushless DC and PMSM Motor Drives, Battery Chargers and BMS Nodes, Industrial Sensing and CTMU Front-Ends, Automotive-Adjacent Body and Control Nodes, Audio Signal Processing and Power Amplifier Supervision.
Digital Switch-Mode Power Supplies
The DSPIC33EP64GP502-E/SO fits digitally controlled SMPS designs because its high-speed PWM provides fine-resolution complementary outputs with hardware dead-time insertion, and its 12-bit/500 ksps ADC (or 10-bit/1.1 Msps four-S&H mode) samples output voltage and inductor current each switching cycle. Three on-chip op amps amplify shunt-current signals while four comparators implement cycle-by-cycle overcurrent limiting without CPU latency, protecting the power stage even during firmware faults. Placed as the sole controller between the rectified input and the output LC filter, the DSC runs voltage- and current-mode compensation loops at tens of kHz, allowing soft parameters such as gain scheduling and power-good sequencing that analog controllers cannot offer. The 3V-3.6V digital supply is easily derived from an auxiliary rail, and CAN enables digital telemetry in rack or telecom power systems.
Recommended
Brushless DC and PMSM Motor Drives
The DSPIC33EP64GP502-E/SO is a strong fit for sensorless BLDC and PMSM drives: the 60 MIPS dsPIC33E core executes field-oriented-control (FOC) mathematics with DSP multiply-accumulate instructions at control-loop rates above 10 kHz, while the ADC's simultaneous four-channel sample-and-hold captures two phase currents plus bus voltage in a single trigger event - eliminating skew that would corrupt FOC vector estimates. Hardware comparators with programmable references provide instant PWM shutdown on overcurrent, and the on-chip op amps buffer low-side shunt signals, saving three external amplifier ICs. In a typical 48V drive, the DSC receives isolated gate-driver feedback, computes the Clarke/Park transforms in firmware, and outputs six center-aligned PWM channels with dead time. The extended -40C to +125C E-grade temperature range suits sealed industrial and traction-adjacent enclosures where ambient temperatures exceed standard industrial limits.
Recommended
Battery Chargers and BMS Nodes
For multi-chemistry battery chargers, the DSPIC33EP64GP502-E/SO combines the peripherals needed for safe, adaptive charging in one 28-pin device. The 12-bit ADC monitors cell voltage and charge current at 500 ksps, the CTMU (Charge Time Measurement Unit) performs precise time-domain measurements useful for cell impedance estimation, and four comparators create layered hardware protection thresholds. The 60 MIPS core runs state-machine charge profiles (pre-charge, CC, CV, termination) with CAN reporting state-of-charge data to a vehicle or rack controller. Three on-chip op amps condition shunt and NTC thermistor signals, and the extended +125C rating covers battery bays in industrial equipment. Firmware-based charging curves allow late-stage chemistry updates without board changes, a key advantage over fixed analog charge ICs when product families span Li-ion, LiFePO4, and lead-acid variants.
Recommended
Industrial Sensing and CTMU Front-Ends
The DSPIC33EP64GP502-E/SO serves capacitive and resistive industrial sensing nodes by exploiting its CTMU for sub-nanosecond charge-time measurement, enabling touch sensing, liquid-level detection, and proximity switches without a dedicated capacitance-to-digital IC. The 10-bit/1.1 Msps ADC with four sample-and-holds digitizes multiple sensor channels simultaneously, while three integrated op amps amplify low-level signals such as thermocouple or strain-gauge outputs, removing external instrumentation amplifiers in cost-sensitive designs. The 60 MIPS core applies filtering, linearization, and compensation in firmware, and the CAN or UART interfaces stream processed data to PLCs. Rated -40C to +125C, the E-grade device tolerates hot pump housings, exhaust-adjacent sensor mounts, and sealed outdoor enclosures, making it practical for harsh-environment retrofits where analog front ends previously dominated the BOM.
Recommended
Automotive-Adjacent Body and Control Nodes
Although the E grade of this part is not AEC-Q100 qualified, the DSPIC33EP64GP502-E/SO with CAN, extended +125C rating, and 21 I/O fits off-highway, agricultural, and marine control nodes that follow automotive-style architectures without formal automotive qualification requirements. The CAN module connects the node to vehicle buses for lighting, valve, and actuation control, while the four comparators and 12-bit ADC supervise current loads and supply rails. The high-speed PWM drives solenoids and LED arrays with dimming resolution, and the PTG offloads repetitive timing sequences from the CPU, keeping the main loop responsive for protocol handling. Designers should verify the customer's qualification policy before substituting this commercial-extended part for a true AEC-Q100 SKU such as Automotive-qualified family members, and account for the 3.3V supply domain when interfacing with 12V loads through drivers.
Recommended
Audio Signal Processing and Power Amplifier Supervision
The DSPIC33EP64GP502-E/SO supports audio-system supervision and lighting/control subsystems in professional amplifiers: the 60 MIPS core with DSP instructions runs filter and detection algorithms, the 12-bit/500 ksps ADC samples output-stage current and supply rails, and four comparators implement hardware DC-offset and overcurrent protection that reacts within one PWM period, protecting loudspeakers faster than firmware-only watchdogs. The three on-chip op amps buffer audio-band monitor signals, and high-speed PWM generates class-D modulator carriers with hardware dead time when used as the modulator in entry-level amplifier stages. The extended -40C to +125C range suits rack-mounted amplifiers with hot rear panels, while UART and CAN provide remote status reporting to mixer or network management. Note that for the analog audio path itself, a dedicated audio codec or DAC is normally paired with this supervisory DSC.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP64GP502-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP64GP502-I/SO | DSPIC33EP32GP502T-E/SO | DSPIC33EP128GP502-E/SO | DSPIC33EP64MC502-E/SO |
|---|---|---|---|---|---|
| Package | 28-SOIC (7.50 mm) | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS |
| Flash Memory | 64KB (22K x 24) | 64KB | 32KB | 128KB | 64KB |
| RAM | 8KB | 8KB | 8KB | 16KB | 8KB |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) |
| On-chip Op Amps / Comparators | 3 / 4 | 3 / 4 | 3 / 4 | 3 / 4 | op amps reduced / 2 comparators |
| CAN Interface | Yes | Yes | Yes | Yes | Yes |
| Lifecycle Status | In Production | In Production | In Production | In Production | In Production |
Key Differentiators
- Extended temperature range in low-cost SOIC (vs DSPIC33EP64GP502-I/SO)
- Integrated analog front end (3 op amps + 4 comparators) (vs DSPIC33EP64MC502-E/SO)
- Memory headroom within the same footprint (vs DSPIC33EP32GP502T-E/SO)
Design Notes
Supply the DSPIC33EP64GP502-E/SO strictly within its 3.0V to 3.6V window; the dsPIC33E core is not 5V tolerant in this range. Use a 3.3V LDO (e.g., 100mA class) with 10uF bulk plus 0.1uF ceramic decoupling at each VDD/VSS pin pair. Estimated: at 60 MIPS with heavy DSP loading, core current is on the order of tens of mA, so a small linear regulator is adequate, but budget additional margin for I/O source current of up to ~4 mA per pin driving LED or optocoupler loads.
On the 28-SOIC land pattern, route the analog supply and VREFCAP node away from PWM traces. Connect the ADC reference bypass capacitor directly between VREF+/AVSS with a short return to the analog ground island. The three on-chip op amps share pins with general-purpose I/O, so configure unused analog functions as digital outputs in firmware initialization to avoid floating inputs that increase supply current.
Do not assume -E equals automotive qualification: the E suffix here is Microchip's extended temperature grade, not AEC-Q100. For automotive programs, select a properly qualified device. Also note the six analog input channels available on the 28-pin package constrain simultaneous-sampling designs - plan external multiplexing if more than six sensor channels are needed. Verify Flash usage against 64KB early; switching to the 128KB sibling requires only a recompile, not a PCB change.
Compliance Information
RoHS/REACH status not explicitly stated in the retrieved data - confirm on the Microchip product page certificate of compliance. The E suffix denotes extended temperature grade, not AEC-Q100 qualification.
