DSPIC33EP32GP504-I/TL - 16-bit DSC 70 MIPS 32KB Flash | Microchip
MPN: DSPIC33EP32GP504-I/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.55 | $4.55 |
| 10 | $4.1 | $41.00 |
| 100 | $3.65 | $365.00 |
| 500 | $3.2 | $1,600.00 |
| 1,000 | $2.85 | $2,850.00 |
DSPIC33EP32GP504-I/TL Overview
A Digital Signal Controller combines the computational architecture of a microcontroller with DSP-capable instruction support in a single chip. Within the power-management hierarchy of embedded systems, a DSC sits above general-purpose MCUs for control-loop tasks and below full DSPs in cost and complexity, making the dsPIC33EP family a common choice for motor control, digital power conversion, and sensing applications that need math acceleration alongside normal MCU peripherals.
Key features of the DSPIC33EP32GP504 include the dsPIC33E general-purpose (GP) core family with the highest-speed 70 MIPS execution, high-speed PWM modules for precise waveform generation, on-chip op amps and advanced analog peripherals that reduce external component count, and a Peripheral Trigger Generator (PTG) that automates peripheral-to-peripheral coordination. Per the Microchip product page, the family also offers superior ADC performance and CAN communication options.
Architecturally, the 16-bit modified Harvard core supports DSP-class instructions (MAC, DSP multiply-accumulate) with excellent code density, while the 32 KB Flash provides self-programmable code storage and the 4 KB SRAM handles control-loop state and buffering. The exposed-pad 44-VTLA package improves thermal and ground performance for high-frequency switching applications.
Typical applications include digital switch-mode power supplies, brushless DC and PMSM motor control, and high-end general-purpose embedded control where analog integration and fast interrupt response matter.
When designing with this device, budget the 3.3 V supply rails and decoupling carefully around the exposed pad, and verify Flash/RAM sizing against code-growth headroom since 32 KB is the smaller end of the dsPIC33EP family.
This page synthesizes distributor inventory data, pin-compatible drop-in alternatives, pricing tiers, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP32GP504-I/TL — 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-I/TL (same form factor and footprint) — differing in Package, Operating Temperature, Flash Program Memory, Packaging, Lifecycle Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32GP504-E/TL
✅ Drop-In✓ In Stock
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View Datasheet →DSPIC33EP32GP504-H/TL
✅ Drop-In✓ In Stock
$1 / Unit
View Datasheet →DSPIC33EP64GP504-I/TL
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128GP504-I/TL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.98 / Unit
View Datasheet →DSPIC33EP256MC504T-I/TL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.32 / Unit
View Datasheet →DSPIC33EP32GP504-I/TL Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit DSC core |
| Core Performance | Up to 70 MIPS |
| Core Clock Frequency | 60 MHz (per Mouser listing) / 70 MIPS (per Microchip) |
| Flash Memory | 32 KB |
| SRAM | 4 KB |
| Supply Voltage | 3.3 V |
| Package | 44-VTLA (VQFN-style) with exposed pad |
| Pin Count | 44 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (I grade) |
| Product Series | dsPIC33EP32GP504 (dsPIC33EP GP family) |
| Key Peripherals | High-Speed PWM, Op Amps, Advanced Analog, CTMU, PTG |
| Communication | CAN-capable family (per Microchip) |
| Lifecycle Status | In Production |
| Packaging Type | Tray |
DSPIC33EP32GP504-I/TL 44-vtla (vqfn-style) with exposed pad Pin Configuration Guide
Pin configuration for DSPIC33EP32GP504-I/TL (44-vtla (vqfn-style) with 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 DSPIC33EP32GP504-I/TL.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP32GP504-I/TL is suitable for 6 applications: Digital Switch-Mode Power Supplies, Brushless DC and PMSM Motor Control, High-End General-Purpose Embedded Control, Battery-Powered and Portable Instruments, Lighting and Electronic Ballast Control, Sensor Signal Acquisition and CTMU-Based Touch Sensing.
Digital Switch-Mode Power Supplies
The DSPIC33EP32GP504-I/TL fits digital SMPS designs because its 70 MIPS core closes voltage- and current-mode control loops fast enough for 100-500 kHz switching converters, while the high-speed PWM peripheral provides fine duty-cycle resolution for precise regulation. The on-chip op amps condition current-shunt and voltage-divider feedback signals directly, removing external amplifier stages and their offset and BOM cost. In a typical topology the DSC reads ADC samples triggered by the Peripheral Trigger Generator, executes a PI compensator in the control ISR, and updates PWM duty registers within one switching period. The exposed-pad 44-VTLA package offers a low-inductance ground reference that reduces switching-noise coupling into analog measurements. Compared with an analog controller, firmware-based control enables non-linear gains, soft-start sequencing, and telemetry over UART or CAN.
Recommended
Brushless DC and PMSM Motor Control
The DSPIC33EP32GP504-I/TL suits BLDC and PMSM motor control because the 70 MIPS dsPIC33E core executes field-oriented control (FOC) math using DSP multiply-accumulate instructions, and the high-speed PWM module drives a three-phase inverter with complementary outputs and dead-time insertion. Integrated op amps amplify low-level shunt-resistor current signals for the ADC, enabling single-shunt or three-shunt sensing without external amplifiers, while the CTMU can support advanced sensing functions. In a typical FOC loop, phase currents are sampled at PWM center, the Clarke/Park transforms and PI current loops run in a 10-20 kHz ISR, and the speed loop runs at 1 kHz. The 44-VTLA exposed pad sinks gate-driver return currents, improving analog accuracy. For designs needing larger Flash tables or more encoder interfaces, the pin-compatible 64 KB and 128 KB TL-package variants provide upgrade headroom.
Recommended
High-End General-Purpose Embedded Control
Per Microchip, the dsPIC33EP GP family with the 70 MIPS core, superior ADC performance, CTMU, op amps, and Peripheral Trigger Generator targets high-end general-purpose applications, and the DSPIC33EP32GP504-I/TL is its 32 KB Flash, 44-VTLA representative. In industrial nodes, building controls, and instrumentation, this part replaces a general-purpose MCU plus external analog front end: the on-chip op amps buffer sensor signals, the high-resolution ADC samples them, and the PTG chains ADC conversions and triggers autonomously, offloading the CPU for communication and supervisory logic. The 4 KB SRAM handles protocol buffering and state machines, and the industrial -40 C to +85 C grade covers unconditioned environments. Firmware is developed in MPLAB X with the XC16 compiler, and the same code base ports across the pin-compatible dsPIC33EP 44-pin family, protecting the software investment as memory needs evolve.
Recommended
Battery-Powered and Portable Instruments
The DSPIC33EP32GP504-I/TL operates from a single 3.3 V rail, which maps directly onto Li-ion-boosted or single-cell-derived portable power architectures, and the 44-VTLA package keeps the 12x12 mm-class footprint small for compact instrument boards. Its integrated op amps perform signal conditioning for sensor front ends (load cells, pH probes, thermistor bridges) without additional rail-to-rail amplifier ICs, reducing board area and quiescent drain. The 70 MIPS core allows burst processing with rapid return to sleep, and the dsPIC33E power-management features support low-power idle modes between measurements in data loggers and handheld meters. The Peripheral Trigger Generator synchronizes timed sampling with minimal CPU wakeups. Designers should budget the 4 KB SRAM carefully in battery products, since logging buffers cannot expand; the pin-compatible DSPIC33EP64GP504-I/TL offers Flash growth without respinning the PCB.
Recommended
Lighting and Electronic Ballast Control
Digital lighting control benefits from the DSPIC33EP32GP504-I/TL's high-speed PWM, whose fine resolution generates the phase-shifted or frequency-modulated drive waveforms required for resonant converters and LED drivers, while the 70 MIPS core implements constant-current regulation, dimming curves, and fault protection in firmware. The on-chip analog monitors output current and bus voltage, enabling cycle-by-cycle protection that an analog controller implements with extra comparators. In a typical LED driver, the DSC closes an average-current loop at tens of kilohertz, sequences multi-string brightness, and reports status over UART or CAN. The 44-VTLA exposed pad provides the compact, thermally efficient mounting preferred in luminaire driver boards. For purely SMPS-flavored ballasts, the related GS-series devices add dedicated multi-loop PWM features, but for most single-loop LED drivers the GP part's integrated op amps simplify the analog design.
Recommended
Sensor Signal Acquisition and CTMU-Based Touch Sensing
The DSPIC33EP32GP504-I/TL integrates the Charge Time Measurement Unit (CTMU), a precision constant-current source and timing module that measures capacitance, time, and resistance, enabling capacitive touch interfaces and ultra-low-cost temperature sensing (CTMU + diode) with no dedicated touch controller. Combined with the on-chip op amps buffering high-impedance sensor outputs and the high-performance ADC digitizing them, the part forms a complete acquisition chain in one 44-pin chip. The 70 MIPS core runs filtering, threshold detection, and calibration in real time, and the PTG can autonomously sequence multiplexed scans to keep sampling jitter low. Typical uses include appliance touch panels, level sensing, and industrial monitoring nodes reporting over UART, SPI, or I2C. Layout-wise, guard traces around touch pads and a solid ground under the exposed pad are the main board-level requirements for stable CTMU readings.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32GP504-I/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32GP504-E/TL | DSPIC33EP32GP504-H/TL | DSPIC33EP64GP504-I/TL | DSPIC33EP128GP504-I/TL | DSPIC33EP256MC504T-I/TL |
|---|---|---|---|---|---|---|
| Package | 44-VTLA (exposed pad) | 44-VTLA (exposed pad) - same | 44-VTLA (exposed pad) - same | 44-VTLA (exposed pad) - same | 44-VTLA (exposed pad) - same | 44-VTLA (exposed pad) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 32 KB | 32 KB | 32 KB | 64 KB | 128 KB | 256 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 8 KB | 16 KB | 32 KB |
| Peripheral Family / Variant | GP (op amps, PTG, HS PWM) | GP - same peripherals | GP - same peripherals | GP - same peripherals | GP - same peripherals | MC - motor-control PWM variant |
Key Differentiators
- Integrated op amps reduce external analog BOM (vs DSPIC33EP256MC504T-I/TL)
- Lowest-cost entry point of the 44-VTLA GP family (vs DSPIC33EP64GP504-I/TL)
- Extended temperature option without respin (vs DSPIC33EP32GP504-E/TL)
Design Notes
The DSPIC33EP32GP504-I/TL runs from a 3.3 V rail. Provide one 0.1 uF ceramic decoupling capacitor per VDD/VSS pair placed within 2-3 mm of the pins, plus a bulk 4.7-10 uF capacitor near the device. Solder the exposed pad to a solid ground pour - it is both the thermal path and the low-inductance ground reference that keeps PWM switching noise out of the ADC and op-amp inputs. If the board shares a supply with switching power stages, add an LC filter or ferrite bead ahead of the DSC VDD. Severity: critical.
The dsPIC33EP family uses Peripheral Pin Select (PPS) for many digital I/O mappings - a mis-configured PPS register is the most common bring-up failure. Verify all RPn pin assignments before committing the layout, and lock PPS writes with the control register if runtime remapping is not needed. Also note Flash is 32 KB: enable compiler map-file review early, since DSP libraries and protocol stacks can exceed 22 KB quickly. If growth is likely, drop in the pin-compatible 64 KB or 128 KB TL-package variants instead of respinning. Severity: recommended.
Keep analog signal traces (op-amp inputs, ADC channels) routed over an unbroken ground plane and away from high-speed PWM lines. Use Kelvin connections at current-shunt resistors feeding the on-chip op amps to preserve measurement accuracy. Assign clock/voltage references away from package edges where PWM traces exit. For CTMU-based touch sensing, add guard rings and keep sense traces short and shielded. These practices follow Microchip's dsPIC33E board layout guidance in the family datasheet. Severity: recommended.
Estimated: at 70 MIPS with heavy DSP loading, core current is on the order of tens of milliamps at 3.3 V, giving power dissipation roughly in the 100-200 mW range, which the 44-VTLA exposed-pad package handles with a modest copper pour and no heatsink. For extended-ambient designs above 85 C, select the DSPIC33EP32GP504-E/TL (rated to +125 C) - it is footprint-identical. Verify with Microchip's thermal data in the datasheet for your specific airflow conditions. Severity: optional.
Compliance Information
Compliance data was not present in the provided web data. Microchip standard product is typically RoHS-compliant, but this must be confirmed on the official product page before design-in.
