DSPIC33FJ32GP104T-E/ML - 16-bit DSC 32KB Flash 44-QFN | Microchip
MPN: DSPIC33FJ32GP104T-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.78 | $57.80 |
| 100 | $5.14 | $514.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $4.18 | $4,180.00 |
DSPIC33FJ32GP104T-E/ML Overview
A digital signal controller combines the computational horsepower of a DSP with the peripheral set and ease of use of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC sits between a general-purpose MCU and a dedicated DSP: it executes control loops and signal-processing algorithms (filters, transforms, PID) in a single chip, making it the standard choice for digitally controlled power supplies, motor drives, and sensor conditioning.
Key features include the dsPIC33F core running at up to 16 MIPS, 2KB (1K x 16) of RAM, three analog comparators, a CTMU (Charge Time Measurement Unit) for capacitive-touch and time measurement, and an RTCC real-time clock/calendar. Connectivity spans I2C, SPI, UART/USART with IrDA and LINbus support. The core is supplied at 3.3V and the device is automotive AEC-Q100 graded in the E-temperature variant.
Architecturally, the dsPIC33F uses a modified Harvard pipeline with a 24-bit instruction word, DSP multiply-accumulate instructions, and two 40-bit accumulators. The peripheral remapping capability lets designers route UART, SPI, and interrupt pins to selectable I/O, dramatically easing PCB layout around the dense 44-QFN footprint.
Typical applications include digitally controlled power converters, industrial sensors, general-purpose embedded control requiring DSP math, capacitive-touch interfaces using the CTMU, and battery-powered instrumentation that exploits the RTCC.
Design consideration: the T-E/ML is a Tape-and-Reel part rated to +125C; verify your thermal budget on the exposed pad, since the QFN relies on the PCB ground plane as the primary heat path.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ32GP104T-E/ML — 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 DSPIC33FJ32GP104T-E/ML (same form factor and footprint) — differing in Package, RAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32GP104T-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32GP104-E/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32GP104-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC104T-E/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.51 / Unit
View Datasheet →DSPIC33FJ32GP304T-E/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32GP104T-E/ML Maximum Ratings & Electrical Characteristics
| Core | dsPIC33F 16-bit |
| Core Performance | 16 MIPS |
| Program Memory (FLASH) | 32KB (11K x 24) |
| RAM | 2KB (1K x 16) |
| Supply Voltage | 3.3 V |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 44-QFN (8x8 mm), exposed pad |
| Pin Count | 44 |
| Connectivity | I2C, SPI, UART/USART, IrDA, LINbus |
| Analog Comparators | 3 |
| CTMU | Yes (Charge Time Measurement Unit) |
| RTCC | Yes (Real-Time Clock and Calendar) |
| Qualification | Automotive, AEC-Q100 |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Series | dsPIC 33F (GP - General Purpose) |
DSPIC33FJ32GP104T-E/ML 44-qfn (8x8 mm), exposed pad Pin Configuration Guide
Pin configuration for DSPIC33FJ32GP104T-E/ML (44-qfn (8x8 mm), 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 DSPIC33FJ32GP104T-E/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32GP104T-E/ML is suitable for 6 applications: Digitally Controlled Power Supplies, Capacitive Touch Interfaces, Industrial Sensor Acquisition Nodes, Automotive Body and Comfort Electronics, Battery-Powered Portable Instrumentation, Embedded DSP Signal Processing.
Digitally Controlled Power Supplies
The DSPIC33FJ32GP104T-E/ML executes voltage-mode or current-mode control loops in AC-DC and DC-DC converters, using its 16 MIPS dsPIC core and single-cycle MAC instructions to run PID and filter compensation in firmware. The three analog comparators provide cycle-by-cycle overcurrent protection with hardware trip latency, while the 10-bit ADC samples feedback rails. At 3.3V supply with AEC-Q100 qualification and -40C to +125C operation, it survives the hot environment near power stages. Placing the controller adjacent to the power train keeps feedback traces short; firmware flexibility enables digital tuning of loop gains without hardware revision, a key advantage over fixed analog compensators.
Recommended
Capacitive Touch Interfaces
With its integrated CTMU (Charge Time Measurement Unit), the DSPIC33FJ32GP104T-E/ML implements multi-zone capacitive-touch keys and sliders without any dedicated touch controller. The CTMU precision current source charges sensor pads while a timer measures charge time; firmware filters drift from temperature and humidity using the RTCC timestamping. The 44 remappable pins let designers place touch channels on whichever traces suit the mechanical layout of an 8x8 mm QFN footprint. Typical deployments include appliance panels, industrial HMI keypads, and automotive cabin controls, where the -40C to +125C E-grade rating and AEC-Q100 qualification are mandatory for under-dash or near-engine placements.
Recommended
Industrial Sensor Acquisition Nodes
The DSPIC33FJ32GP104T-E/ML conditions and digitizes analog sensor signals using its ADC, three comparators for threshold alarms, and DSP math for IIR/FIR filtering. UART/USART with LINbus and IrDA support, plus I2C and SPI, connect it to industrial buses and external precision converters. The RTCC provides time-stamped logging for condition-monitoring records. Operating from a single 3.3V rail at 16 MIPS with 2KB of on-chip RAM, it handles real-time filtering loops that a plain MCU would struggle with. Its -40C to +85C industrial coverage (E grade to +125C) suits factory-floor installations near motors and drives, and the QFN exposed pad transfers heat into the PCB ground plane.
Recommended
Automotive Body and Comfort Electronics
The AEC-Q100 qualification and -40C to +125C range of the DSPIC33FJ32GP104T-E/ML make it suitable for automotive body modules such as lighting controllers, seat adjustment units, and HVAC actuators. LINbus connectivity integrates it directly into low-cost vehicle networks, while 5V-tolerant I/O simplifies interfacing with 12V-domain signal conditioning. The RTCC supports scheduled functions like timed lighting. Because the T-E/ML is supplied in Tape-and-Reel, high-volume SMT assembly lines can place it without repackaging. Firmware implemented in MPLAB X with the XC16 compiler benefits from Microchip's automotive functional-safety collateral for the dsPIC33F family, easing design reviews for Tier-1 suppliers.
Recommended
Battery-Powered Portable Instrumentation
Handheld instruments benefit from the DSPIC33FJ32GP104T-E/ML's low-power management modes, 3.3V single-rail operation, and integrated RTCC that keeps time-of-day during sleep. The 32KB FLASH and 2KB RAM are sufficient for measurement sequencing, calibration tables, and a display driver, while DSP instructions perform averaging and FFT analysis for spectrum-type measurements. 5V-tolerant inputs allow direct connection to legacy sensor outputs without level shifters, saving board space in the compact housing that an 8x8 mm QFN enables. The CTMU additionally supports contactless or battery-impedance measurement functions, and firmware-updatable FLASH enables field calibration without opening the enclosure.
Recommended
Embedded DSP Signal Processing
As a low-cost entry into digital signal processing, the DSPIC33FJ32GP104T-E/ML executes fixed-point FFT, FIR, and control algorithms using its 40-bit accumulators and DSP multiply-accumulate instructions at 16 MIPS. It is ideal for audio band analysis, vibration monitoring, and precision timing measurement where a full DSP would be overkill. The 44-QFN exposes remappable pins for I2S-style data exchange over SPI, and the on-chip comparators create zero-crossing detectors for frequency measurement. Developers prototype with the DIP-packaged DSPIC33FJ32GP101-I/P on breadboards, then migrate the identical firmware core to this QFN part for production, keeping code portable across the GP101/102/104 family.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32GP104T-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32GP104T-I/ML | DSPIC33FJ32GP104-E/ML | DSPIC33FJ32MC104T-E/ML | DSPIC33FJ32GP304T-E/ML |
|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS |
| FLASH Memory | 32KB (11K x 24) | 32KB | 32KB | 32KB | 64KB |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) |
| Peripheral Set | GP: CTMU, RTCC, 3 comparators | Same GP set | Same GP set | MC set with MCPWM | Same GP set |
Key Differentiators
- Extended -40C to +125C automotive range (vs DSPIC33FJ32GP104T-I/ML)
- General-purpose peripheral set with CTMU (vs DSPIC33FJ32MC104T-E/ML)
- Lowest-memory footprint at minimum cost (vs DSPIC33FJ32GP304T-E/ML)
Design Notes
Supply the DSPIC33FJ32GP104T-E/ML from a clean 3.3V rail. The dsPIC33F family requires an internal core regulator capacitor (typically ~10uF electrolytic plus 0.1uF ceramic on VDDCORE) placed within a few millimeters of the pin - omitting it causes erratic resets. Decouple each VDD pin with 0.1uF ceramic. Add 1uF bulk near the QFN. Estimated: total transient current at 16 MIPS plus I/O toggling stays under ~80 mA, well within a 500 mA regulator budget.
The 44-QFN (8x8 mm) exposed pad is the primary thermal and ground path. Pattern the PCB land with a central thermal via array (4x4, 0.3 mm vias) into the ground plane to achieve the lowest theta-JA. For the E-grade (+125C ambient) automotive use case, good copper area is mandatory: estimated junction rise at moderate loading (~50 mA, ~165 mW dissipation) with a poor pad connection can add tens of degrees C. Verify with the datasheet thermal resistance figures for the QFN package before finalizing the stackup.
Peripheral pin selection (PPS) on the dsPIC33F must be unlocked and configured before UART/SPI functions appear on physical pins - a very common first-boot failure is firmware assuming fixed pin mapping. Also configure CONFIG registers (oscillator source, watchdog, code protection) at programming time; wrong oscillator fuses are the leading cause of 'device does not run' returns. For programming access, route MCLR, PGD, PGC to a header even on production boards.
Compliance Information
Distributor listings (Hotenda, DigiKey) identify the part as Automotive AEC-Q100 qualified, RoHS compliant, and lead-free. REACH and halogen-free status per current Microchip certificate documents not stated in retrieved data.