DSPIC33FJ32GP104-E/TL - 16-bit DSC 32KB Flash QFN-44 | Microchip
MPN: DSPIC33FJ32GP104-E/TL ✓ ActiveDSPIC33FJ32GP104-E/TL Overview
A Digital Signal Controller combines the deterministic control of a microcontroller (MCU) with the mathematical throughput of a Digital Signal Processor (DSP) in a single core. Within the semiconductor hierarchy, the dsPIC33F sits between general-purpose MCUs and dedicated DSP ICs, offering hardware multiply-accumulate (MAC), divide, and barrel shifter instructions that accelerate control loops and signal-processing routines while retaining MCU-class peripherals, interrupts, and I/O flexibility.
Key features of this part include a 16-bit modified Harvard architecture core executing up to 16 MIPS, 32KB self-programmable Flash, automotive AEC-Q100 qualification, and extended temperature operation of -40C to +125C denoted by the -E grade suffix. According to Microchip datasheet 70000652f, the device I/O pins sink or source 10 mA or 6 mA (pin-specific) for standard VOH/VOL, up to 16 mA or 12 mA for non-standard levels, and offer up to 20 selectable open-drain outputs with integrated pull-ups and three external interrupts (two remappable).
The dsPIC33F core integrates DSP engine features including a 17-bit x 17-bit multiplier, 40-bit accumulator, and dual operand fetch, enabling single-cycle MAC operations. Clock management via PLL allows the internal clock to run the core while external crystal frequency stays low, reducing EMI. Peripherals on this GP (General Purpose) family include UART, SPI, I2C serial interfaces and an analog-to-digital converter supporting sensor interfacing and communications.
Typical applications span motor-adjacent sensing and general control, automotive body and comfort modules (leveraging AEC-Q100 qualification), industrial sensors, power-supply supervisory logic, and embedded systems requiring DSP-class math with MCU-style peripherals at 3.0V to 3.6V operation.
For design, remember that 3.3V operation requires 5V-tolerant pin mapping verification in mixed-voltage systems; the datasheet notes 5V-tolerant pins, which simplifies interfacing with legacy 5V logic without level shifters.
This page synthesizes distributor pricing context, drop-in family alternatives, and practical design notes beyond what the manufacturer datasheet alone provides.
Drop-in alternatives for DSPIC33FJ32GP104-E/TL — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
DSPIC33FJ32GP104-I/TL
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64GP104
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ16GP104
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC104
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32GP304
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32GP104-E/TL Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F modified Harvard |
| Core Processing Speed | 16 MIPS |
| Program Memory Size | 32KB (11K x 24) Flash |
| RAM Size | 2KB |
| Supply Voltage Range | 3.0 V to 3.6 V (nominal 3.3 V) |
| Operating Temperature | -40C to +125C (E grade, extended) |
| Package | 44-VTLA (6x6 mm QFN) with exposed pad |
| Pin Count | 44 |
| Qualification | Automotive, AEC-Q100 |
| I/O Sink/Source Current | 10 mA or 6 mA pin-specific (16 mA / 12 mA non-standard levels) |
| 5V Tolerant Pins | Yes |
| Open-Drain Outputs | Up to 20 selectable |
| External Interrupts | 3 (two remappable) |
| Pull-ups | Selectable, up to 20 |
| Product Series | dsPIC 33F (dsPIC33FJ32GP104) |
| Program Memory Type | Flash (self-programmable) |
| Mounting Type | Surface Mount |
DSPIC33FJ32GP104-E/TL 44-vtla (6x6 mm qfn) with exposed pad Pin Configuration Guide
Pin configuration for DSPIC33FJ32GP104-E/TL (44-vtla (6x6 mm qfn) 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 DSPIC33FJ32GP104-E/TL.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32GP104-E/TL is suitable for 6 applications: Automotive Body and Comfort Modules, Industrial Sensor and Control Nodes, Digital Power Supply Supervision, Embedded Audio Signal Processing, Motor-Adjacent Sensing and Supervision, IoT and Smart Sensor Endpoints.
Automotive Body and Comfort Modules
The DSPIC33FJ32GP104-E/TL is AEC-Q100 qualified and rated -40C to +125C, making it well suited to automotive body electronics such as lighting control, seat adjustment, wiper modules, and HVAC actuator sensing. Its 16 MIPS dsPIC33F core executes filtering and control loops deterministically, while 32KB Flash holds protocol stacks and diagnostics. The datasheet-documented 5V-tolerant I/O and selectable pull-ups/open-drain outputs simplify direct interfacing with 12V-vehicle-derived sensorConditioning through appropriate dividers, reducing external component count. For production designs targeting safety-relevant functions, verify the specific ASIL requirements separately, as AEC-Q100 addresses reliability qualification rather than functional safety certification.
Recommended
Industrial Sensor and Control Nodes
In factory automation, this DSC fits sensor transmitters, actuator controllers, and condition-monitoring nodes. The 16-bit core with DSP multiply-accumulate capability performs digital filtering on ADC-sampled signals at 16 MIPS, while 3.3V logic and remappable external interrupts allow flexible pin placement in dense boards. The 32KB (11K x 24) Flash supports protocol handling for UART, SPI, and I2C links to PLC backbones, and 2KB RAM buffers process data. Industrial environments with ambient up to +85C can use the lower-cost -I variant; the -E grade covers hot enclosures near motors or heaters reaching +125C. According to Microchip, the dsPIC33F core's interrupt latency is deterministic, important for closed-loop control timing.
Recommended
Digital Power Supply Supervision
The DSPIC33FJ32GP104-E/TL can supervise and trim power supplies: its ADC samples output voltage and current sense signals, the 16-bit DSP core executes compensator math, and remappable PWM-capable pins drive feedback or alarm circuits. The 3.0V to 3.6V supply range permits direct powering from a 3.3V rail, and the extended -40C to +125C temperature range suits telecom and server PSUs mounted near heat sources. Per the datasheet, up to 20 selectable open-drain outputs allow wired-OR fault signaling on shared supervisor buses. Careful grounding through the exposed pad minimizes ground bounce between the analog front end and switching section, protecting ADC accuracy in noisy converter environments.
Recommended
Embedded Audio Signal Processing
The dsPIC33F GP family's DSP engine (17x17-bit multiplier, 40-bit accumulator) executes single-cycle MAC operations suited to audio filtering, tone generation, and simple codec-less signal processing at 16 MIPS. The 32KB Flash holds FIR/IIR filter coefficients and code with headroom, and 2KB RAM provides delay-line and buffer storage. Serial interfaces (UART, SPI, I2C) connect to audio codecs and EEPROM parameter storage, with remappable pins simplifying PCB routing. Operating from a clean 3.3V rail keeps the analog section quiet; place the exposed pad VSS connection directly under the die to establish a low-impedance ground for converter peripherals and reduce digital return-path noise coupling into the signal chain.
Recommended
Motor-Adjacent Sensing and Supervision
While pure motor-control designs favor the MC variant (DSPIC33FJ32MC104, same pinout), the GP104 excels at the sensing and supervision layer around a drive: it digitizes temperature, current, and position feedback, runs acceleration and vibration analysis with the DSP engine, and reports over UART/SPI/I2C to the drive controller. The -E grade's +125C ceiling allows placement inside motor housings or on heat-soaked PCBs where industrial-grade parts would exceed limits. According to the datasheet, three external interrupts (two remappable) capture fast encoder or fault events with low, deterministic latency. Using the same 44-pin footprint for both GP and MC variants lets one PCB design serve multiple product tiers with firmware differentiation only.
Recommended
IoT and Smart Sensor Endpoints
For connected endpoint devices, the DSPIC33FJ32GP104-E/TL provides local signal processing with low bill-of-materials cost: 32KB Flash hosts both the application and a lightweight communication routine over UART or SPI to a radio module. The 3.3V operation matches common lithium and USB-derived supplies, and 5V-tolerant pins ease interfacing with peripheral boards. Remappable pins let a single firmware image support multiple mechanical variants of a product family, reducing qualification effort. DSP filtering capability preprocesses sensor data locally, transmitting summaries instead of raw streams, which lowers radio duty cycle and energy consumption. The QFN 6x6 mm footprint with exposed pad suits compact two-layer endpoint PCBs with careful ground pour design.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32GP104-E/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32GP104-I/TL | DSPIC33FJ64GP104 | DSPIC33FJ16GP104 | DSPIC33FJ32MC104 | DSPIC33FJ32GP304 |
|---|---|---|---|---|---|---|
| Package | 44-VTLA (6x6 mm QFN), exposed pad | 44-VTLA (6x6 mm QFN) - same | 44-VTLA (6x6 mm QFN) - same | 44-VTLA (6x6 mm QFN) - same | 44-VTLA (6x6 mm QFN) - same | 44-pin TQFP (PT) - same pin count, different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 32KB (11K x 24) | 32KB (11K x 24) | 64KB (22K x 24) | 16KB (5.5K x 24) | 32KB (11K x 24) | 32KB (11K x 24) |
| Core Speed | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS |
| AEC-Q100 Qualification | Yes (Automotive) | Yes (Automotive family) | Yes (Automotive family) | Yes (Automotive family) | Yes (Automotive family) | Yes (Automotive family) |
| Family / Peripheral Set | General Purpose (GP) | General Purpose (GP) | General Purpose (GP) | General Purpose (GP) | Motor Control (MC) | General Purpose (GP) |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
Key Differentiators
- Extended +125C automotive-grade operation (vs DSPIC33FJ32GP104-I/TL)
- Balanced 32KB Flash for mid-size applications (vs DSPIC33FJ16GP104)
- General Purpose peripheral set (vs DSPIC33FJ32MC104)
Design Notes
Connect the exposed pad of the 44-VTLA QFN to a solid VSS ground plane using a via array (typically 5 to 9 vias) under the pad. This exposed pad is both the primary thermal path and the main ground reference for on-chip analog peripherals. A floating or poorly soldered exposed pad is a common cause of ADC noise and intermittent resets in QFN dsPIC33F designs; inspect reflow quality with X-ray for production boards.
The device operates from 3.0V to 3.6V. Place 0.1uF ceramic decoupling capacitors at each VDD/VSS pin pair, as close to the pins as possible, plus one bulk 4.7uF to 10uF capacitor near the package. Brown-out behavior should be enabled in configuration so the core does not execute below the minimum 3.0V level during supply ramps, preventing corrupted Flash writes during self-programming operations.
The -E grade (-40C to +125C) must not be substituted with the -I grade (-40C to +85C) in designs with ambient temperatures above 85C, even though the parts are pin-identical; this is a frequent sourcing substitution error. Additionally, remappable peripheral (RP) pin assignments must be locked down early in layout, because not every peripheral can map to every pin - verify against the datasheet 70000652f pinout tables before routing.
Compliance Information
Distributor data (DigiKey, Hotenda) identifies this part as Automotive, AEC-Q100 qualified. RoHS/REACH/lead-free status not stated in the provided data - verify on Microchip's product page.
