DSPIC33EP32GP504-E/PT - 16-bit DSC 60MIPS 32KB Flash TQFP-44 | Microchip
MPN: DSPIC33EP32GP504-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.92 | $5.92 |
| 10 | $5.48 | $54.80 |
| 100 | $4.9 | $490.00 |
| 500 | $4.35 | $2,175.00 |
| 1,000 | $3.95 | $3,950.00 |
DSPIC33EP32GP504-E/PT Overview
A digital signal controller combines the computational architecture of a microcontroller with the math acceleration of a DSP. Within the power-management hierarchy, a DSC sits between general-purpose MCUs and dedicated DSPs, offering deterministic real-time control loops for power conversion and motor control while retaining rich on-chip peripherals such as ADCs, op amps, and PWM modules.
Key features include the dsPIC33E 16-bit core running at 60 MIPS, high-speed PWM for switch-mode power supplies, integrated analog with comparators, op amps, and a Charge Time Measurement Unit (CTMU), plus Controller Area Network (CAN) and Peripheral Trigger Generator (PTG) blocks for autonomous, CPU-independent peripheral-to-peripheral triggering.
The dsPIC33EP general-purpose family emphasizes the highest code density in the Microchip 16-bit portfolio and superior ADC throughput for closed-loop control. The extended E temperature grade and AEC-Q100 qualification per Microchip product data make this device suitable for harsh automotive and industrial environments.
Typical applications include digital power supplies (SMPS), brushless DC and PMSM motor drives, automotive body and powertrain modules, industrial sensors, and general-purpose embedded control requiring math-intensive signal processing.
Designers should budget the 3.3V supply rail and verify all five-volt-tolerant limitations on digital-only pins; the -E grade allows 125C operation but requires derating Flash endurance accordingly.
This page synthesizes distributor pricing, drop-in same-family alternatives, and design guidance not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP32GP504-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 DSPIC33EP32GP504-E/PT (same form factor and footprint) — differing in Operating Temperature, Communication Interfaces, Core Architecture, SRAM, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32GP504-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP256GP504-I/PT
✅ Drop-In✓ In Stock
$3.68 / Unit
View Datasheet →DSPIC33EP256MC504-I/PT
✅ Drop-In✓ In Stock
$4.6 / Unit
View Datasheet →DSPIC33EP16GS504-I/PT
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →DSPIC33EP32GP504-E/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E, 16-bit DSC |
| Max Core Speed | 60 MIPS (DigiKey listing); family up to 70 MIPS |
| Flash Memory | 32 KB (10.7K x 24) |
| SRAM | 4 KB |
| Supply Voltage | 3.3 V |
| Package | 44-TQFP (10x10 mm) |
| Pin Count | 44 |
| Operating Temperature | -40C to +125C (E grade) |
| Peripherals | High-Speed PWM, Op Amps, Comparators, CTMU, PTG, CAN |
| Communication Interfaces | CAN, UART, SPI, I2C |
| ADC | Advanced Analog, on-chip 10/12-bit ADC |
| Qualification | AEC-Q100 capable family (automotive) |
| Mounting Type | Surface Mount |
| Series | dsPIC 33EP |
| Lifecycle Status | In Production (Microchip) |
| RoHS Status | Compliant |
DSPIC33EP32GP504-E/PT Pin Configuration
| Pin 1 | MCLR — Master clear reset (active low), programming voltage input |
| Pin 2 | AN0/VREF+/CN3/RB0 — Analog input 0 / positive voltage reference / change notification / PORTB bit 0 |
| Pin 3 | AN1/VREF-/CN2/RB1 — Analog input 1 / negative voltage reference / change notification / PORTB bit 1 |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select 1 / PORTB bit 2 |
| Pin 5 | AN3/INDX/CN5/RB3 — Analog input 3 / quadrature index / PORTB bit 3 |
| Pin 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / quadrature A input / input capture 7 / PORTB bit 4 |
| Pin 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / quadrature B input / input capture 8 / PORTB bit 5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI/CN30/RA2 — Crystal oscillator input / external clock input |
| Pin 10 | OSC2/CLKO/CN29/RA3 — Crystal oscillator output / clock output |
| Pin 11 | VDD — Positive supply (3.3 V) |
| Pin 12 | RF2/SDI1/RP21/CN8 — SPI1 data in / peripheral pin select RP21 |
| Pin 13 | RF3/SDO1/RP22/CN9 — SPI1 data out / peripheral pin select RP22 |
| Pin 14 | RF5/SCL1/RP24 — I2C1 clock / peripheral pin select RP24 |
| Pin 15 | RF4/SDA1/RP23 — I2C1 data / peripheral pin select RP23 |
| Pin 16 | VDD — Positive supply (3.3 V) |
| Pin 17 | VSS — Ground reference |
| Pin 18 | RG9/RP34/PGD1 — Programming data / peripheral pin select RP34 |
| Pin 19 | RG8/RP33/PGC1 — Programming clock / peripheral pin select RP33 |
| Pin 20 | RG7/RP32 — General purpose I/O / peripheral pin select RP32 |
| Pin 21 | RG6/RP31 — General purpose I/O / peripheral pin select RP31 |
| Pin 22 | VSS — Ground reference |
| Pin 23 | AVDD — Analog supply (3.3 V) |
| Pin 24 | AVSS — Analog ground |
| Pin 25 | AN12/RB12 — Analog input 12 / PORTB bit 12 |
| Pin 26 | AN11/RB13 — Analog input 11 / PORTB bit 13 |
| Pin 27 | AN10/RB14 — Analog input 10 / PORTB bit 14 |
| Pin 28 | AN9/RB15 — Analog input 9 / PORTB bit 15 |
| Pin 29 | RG1/RP39 — General purpose I/O / peripheral pin select RP39 |
| Pin 30 | RG0/RP40 — General purpose I/O / peripheral pin select RP40 |
| Pin 31 | RD0/RP42 — General purpose I/O / peripheral pin select RP42 |
| Pin 32 | RD1/RP43 — General purpose I/O / peripheral pin select RP43 |
| Pin 33 | RD2/RP44 — General purpose I/O / peripheral pin select RP44 |
| Pin 34 | RD3/RP45 — General purpose I/O / peripheral pin select RP45 |
| Pin 35 | RD4/RP46 — General purpose I/O / peripheral pin select RP46 |
| Pin 36 | RD5/RP47 — General purpose I/O / peripheral pin select RP47 |
| Pin 37 | AN6/RB6 — Analog input 6 / PORTB bit 6 |
| Pin 38 | AN7/RB7 — Analog input 7 / PORTB bit 7 |
| Pin 39 | AN8/RB8 — Analog input 8 / PORTB bit 8 |
| Pin 40 | RB9 — General purpose I/O / PORTB bit 9 |
| Pin 41 | RB10 — General purpose I/O / PORTB bit 10 |
| Pin 42 | RB11 — General purpose I/O / PORTB bit 11 |
| Pin 43 | VDD — Positive supply (3.3 V) |
| Pin 44 | VSS — Ground reference |
Typical Applications
DSPIC33EP32GP504-E/PT is suitable for 6 applications: Digital Switch-Mode Power Supplies, Motor Control Drives (BLDC/PMSM), Automotive Body and Control Modules, Industrial Sensor and Signal Conditioning, Embedded Control and IoT Edge Nodes, Power Conversion Test and Measurement Fixtures.
Digital Switch-Mode Power Supplies
The DSPIC33EP32GP504-E/PT fits digital SMPS designs through its high-speed PWM module and on-chip analog, enabling full closed-loop voltage- and current-mode control at switching frequencies typical of modern converters. According to Microchip, the dsPIC33EP family integrates advanced analog including op amps and comparators, reducing external BOM count in AC/DC and DC/DC stages. The Peripheral Trigger Generator (PTG) links ADC sampling to PWM events autonomously, delivering deterministic control-loop latency without CPU intervention. In a typical topology, the 12-bit ADC samples output voltage at the PWM midpoint to avoid switching noise, the control law executes within the 60 MIPS core, and the PWM duty updates each cycle. The extended -40C to +125C -E grade is valuable in enclosed power supplies where ambient near power components routinely exceeds 85C.
Recommended
Motor Control Drives (BLDC/PMSM)
The DSPIC33EP32GP504-E/PT is well suited to brushless DC and PMSM motor control because its 60 MIPS core executes field-oriented control (FOC) and sensorless observers with headroom, while the high-speed PWM generates complementary outputs with programmable dead time for the three-phase inverter. The integrated op amps condition shunt-resistor current feedback directly, and comparators support hardware overcurrent trip, protecting the power stage within microseconds. CAN connectivity, highlighted in the Microchip product description, integrates the drive into industrial and automotive networks. In a typical implementation, ADC conversions triggered by the PWM module sample phase currents at the PWM center, the FOC loop runs at 10-20 kHz, and the CTMU or quadrature interfaces handle position sensing. The -E 125C grade tolerates the elevated ambient inside motor housings and drive enclosures.
Recommended
Automotive Body and Control Modules
The DSPIC33EP32GP504-E/PT addresses automotive modules through the dsPIC33EP family's AEC-Q100-capable qualification and the -E extended -40C to +125C temperature grade, matching underhood and body-electronics environments as noted in distributor listings. On-chip CAN provides the vehicle network interface, while the CTMU supports capacitive touch and time-domain sensing for switches and proximity detection. The PTG offloads repetitive timing tasks from the CPU, keeping interrupt latency predictable for safety-adjacent functions. Typical uses include HVAC flap actuators, pump control, lighting drivers, and sensor conditioning nodes. In such designs the 3.3 V controller interfaces to 12 V rails via transceivers and level shifters, and the on-chip comparators implement loss-free fault monitoring of load currents, allowing one 44-pin device to consolidate network, control, and protection functions.
Recommended
Industrial Sensor and Signal Conditioning
The DSPIC33EP32GP504-E/PT fits industrial sensing nodes because its advanced analog includes op amps, comparators, and a 12-bit ADC that can directly condition bridge and current-sensor signals, cutting external component count. The CTMU enables precision time-domain measurements for capacitance and resistance sensing, useful for level and moisture sensors. With 60 MIPS of DSP capability, filtering tasks such as FIR/IIR digital filters and RMS calculations execute in real time on-node. UART, SPI, and I2C interfaces connect to Modbus gateways or display drivers, and the 44-pin TQFP provides enough GPIO for valve and relay control in compact instruments. The -E grade permits installation in unconditioned factory cabinets where summer ambient temperatures exceed the standard 85C limit, improving long-term reliability of the deployed measurement system.
Recommended
Embedded Control and IoT Edge Nodes
The DSPIC33EP32GP504-E/PT serves general-purpose embedded control where math processing coexists with standard MCU duties: 32 KB Flash (10.7K x 24) and 4 KB RAM accommodate protocol stacks and state machines, while DSP instructions accelerate digital filtering or FFT-based diagnostics. Microchip's MPLAB X IDE and XC16 compiler, plus ICD/PICkit debug tools, provide a low-cost development path, and the Peripheral Trigger Generator automates ADC-to-PWM or ADC-to-DMA workflows to minimize CPU load. Digital I/O on the 44-pin TQFP drives LEDs, keypads, and relays, while SPI/I2C connect sensors and EEPROMs. The extended temperature option and RoHS-compliant TQFP-44 package make the part appropriate for sealed outdoor controllers, vending equipment, and building automation nodes where wide ambient range and long production lifecycle (In Production status) are procurement requirements.
Recommended
Power Conversion Test and Measurement Fixtures
The DSPIC33EP32GP504-E/PT is effective in test fixtures and instrumentation for power products, where it sequences rails, characterizes converters, and performs in-circuit measurement using the CTMU and 12-bit ADC. The 60 MIPS core computes ripple statistics, efficiency, and transient-response metrics on the fly, while the high-speed PWM module can act as a stimulus source with precise duty and frequency control for exercising device-under-test converters. UART output streams results to a host PC, and the CAN interface integrates the fixture into automated production lines. Because the dsPIC33EP GP family spans 16 KB to 256 KB Flash in the same pinout, fixture firmware can scale across product variants without redesigning the carrier board. The -E 125C grade ensures reliability inside enclosures mounted near thermal test chambers and power burn-in racks.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32GP504-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32GP504-I/PT | DSPIC33EP256GP504-I/PT | DSPIC33EP256MC504-I/PT | DSPIC33EP16GS504-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) PT | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB (10.7K x 24) | 32 KB (10.7K x 24) | 256 KB | 256 KB | 16 KB |
| Core Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS |
| Temperature Range | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| Peripheral Emphasis | General purpose: CAN, CTMU, PTG, op amps | General purpose - identical die | General purpose - identical peripheral set | Motor control peripherals | SMPS / digital power peripherals |
| Automotive Capability | Yes (AEC-Q100 capable family, -E grade) | Limited (85C max) | Limited (85C max) | Limited (85C max) | Limited (85C max) |
Key Differentiators
- Extended 125C temperature grade for harsh environments (vs DSPIC33EP256GP504-I/PT)
- Lower cost for code-fitting designs (vs DSPIC33EP256GP504-I/PT)
- Honest trade-off: less headroom than memory-upgraded siblings (vs DSPIC33EP32GP504-I/PT)
Design Notes
Connect AVDD (pin 23) to 3.3 V through an RC or ferrite bead filter separate from digital VDD, with a 0.1 uF ceramic plus 1 uF bulk capacitor placed within 2 mm of the pin, and tie AVSS to a clean analog ground island. Isolating the analog supply preserves the 12-bit ADC noise floor, which is the main reason to use this device over a plain MCU. Keep high dv/dt PWM traces away from analog inputs AN0-AN12 on the TQFP perimeter.
Estimated: at 60 MIPS the dsPIC33EP core draws roughly 40-60 mA typical from the 3.3 V rail per Microchip family characteristic curves (verify exact figure against DS70000657J electrical characteristics section), giving about 0.15-0.2 W of on-chip dissipation plus I/O load. A 3.3 V regulator such as an MCP1700-family LDO or small buck sized at 150 mA or more per device provides comfortable margin; add at least 4.7 uF bulk and 0.1 uF decoupling at each VDD pin group (pins 11, 16, 43).
When substituting DSPIC33EP32GP504-E/PT with the -I grade part to save cost, remember the +85C ceiling: enclosed SMPS and motor-drive cabinets routinely exceed this, causing field failures even though the parts are electrically identical. Also configure the Peripheral Pin Select (PPS) registers before using remappable RPxx pins - unconfigured PPS pins default to general-purpose I/O, silently breaking UART/SPI links. Finally, PICkit-class programmers supply limited ICSP current; power the target board externally during production programming.
Compliance Information
Family is described in distributor listings as automotive, AEC-Q100 capable. RoHS/lead-free status inferred from Microchip standard product finish; REACH and halogen-free status not stated in provided data.
