DSPIC33FJ32MC104T-E/ML - 16-Bit 16 MIPS DSC 32KB FLASH | Microchip
MPN: DSPIC33FJ32MC104T-E/ML ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.4 | $5.40 |
| 10 | $4.86 | $48.60 |
| 100 | $4.32 | $432.00 |
| 500 | $3.89 | $1,945.00 |
| 1,000 | $3.51 | $3,510.00 |
DSPIC33FJ32MC104T-E/ML Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy, the DSC sits above general-purpose MCUs and below dedicated DSPs, making it the standard choice for closed-loop motor control, digital power conversion, and sensor-fusion tasks that require fast multiply-accumulate operations alongside real-time peripherals.
Key features of this device include the motor control PWM (MCPWM) module for complementary and independent PWM generation, a Charge Time Measurement Unit (CTMU) for capacitive touch and precision timing, three analog comparators, and a Real-Time Clock and Calendar (RTCC). Peripherals can be flexibly routed through Peripheral Pin Select (PPS), letting designers map UART, SPI, I2C, and other digital functions to available pins.
Connectivity options include I2C, SPI, UART/USART, IrDA, and LINbus, covering automotive and industrial network requirements. The core operates from a 3.3V supply at up to 16 MIPS, and up to 5V-tolerant digital pins simplify interfacing with legacy 5V systems. The -E temperature grade supports -40C to +125C operation, and the device is AEC-Q100 qualified for automotive applications.
Typical applications include brushless DC and PMSM motor control, digital power supplies, automotive body modules, and industrial sensing nodes where the MCPWM and CTMU peripherals directly reduce external component count.
Design consideration: plan early for PPS pin mapping, since analog-capable pins do not support full remappability; reserve dedicated pins for the MCPWM outputs before routing I2C and UART functions.
This page synthesizes distributor pricing, drop-in alternative analysis, comparison tables, and practical design notes not found in the manufacturer datasheet, giving engineers and buyers a single decision-ready reference.
Drop-in alternatives for DSPIC33FJ32MC104T-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 DSPIC33FJ32MC104T-E/ML (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, RAM, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32MC204-E/ML
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →DSPIC33FJ32MC304-E/ML
✅ Drop-In✓ In Stock
$3.95 / Unit
View Datasheet →DSPIC33FJ32GP304-I/ML
✅ Drop-In✓ In Stock
$3.49 / Unit
View Datasheet →DSPIC33FJ16GP304-I/ML
✅ Drop-In✓ In Stock
$2.95 / Unit
View Datasheet →DSPIC33EP128GP504T-I/ML
✅ Drop-In✓ In Stock
$3.92 / Unit
View Datasheet →DSPIC33FJ32MC104T-E/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC (DSC) |
| Maximum CPU Speed | 16 MIPS |
| Program Memory | 32KB (11K x 24) FLASH |
| RAM | 1KB |
| Supply Voltage | 3.3 V |
| Package | 44-QFN (8x8 mm) exposed pad, ML |
| Mounting Type | Surface Mount |
| Connectivity | I2C, SPI, UART/USART, IrDA, LINbus |
| Motor Control PWM | MCPWM module |
| Analog Comparators | 3 |
| CTMU | Yes (Charge Time Measurement Unit) |
| RTCC | Yes (Real-Time Clock and Calendar) |
| Peripheral Pin Select (PPS) | Yes |
| Operating Temperature | -40C to +125C (E grade) |
| Qualification | Automotive, AEC-Q100 |
| I/O Sink/Source Current | 10 mA or 6 mA standard, up to 16 mA or 12 mA non-standard VOH |
| 5V Tolerant I/O | Yes |
| External Interrupts | 3 (two remappable) |
DSPIC33FJ32MC104T-E/ML 44-qfn (8x8 mm) exposed pad, ml Pin Configuration Guide
Pin configuration for DSPIC33FJ32MC104T-E/ML (44-qfn (8x8 mm) exposed pad, ml 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 DSPIC33FJ32MC104T-E/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32MC104T-E/ML is suitable for 6 applications: Brushless DC Motor Control, Automotive Body and Comfort Modules, Digital Power Supplies, Capacitive Touch Interfaces, Industrial Sensor and Actuator Nodes, Embedded Motor-Control Development Platforms.
Brushless DC Motor Control
The DSPIC33FJ32MC104T-E/ML targets three-phase BLDC and PMSM drives through its dedicated MCPWM module, which produces complementary PWM pairs with programmable dead time for half-bridge gating at 16 MIPS execution speed. The three on-chip analog comparators implement cycle-by-cycle current limiting and overcurrent shutdown without external comparator ICs, while the CTMU and 10-bit-style analog resources support back-EMF sensing for sensorless commutation. Placed ahead of a three-phase gate driver, the DSC closes the current loop in firmware with deterministic interrupt latency, and Peripheral Pin Select lets engineers route PWM and commutation signals to optimal PCB positions. The -40C to +125C E-grade and AEC-Q100 qualification make it suitable for automotive pump, fan, and actuator motors, though EOL status means new programs should verify lifetime supply.
Recommended
Automotive Body and Comfort Modules
Thanks to AEC-Q100 qualification, the -40C to +125C E temperature grade, and LINbus/UART connectivity, the DSPIC33FJ32MC104T-E/ML fits automotive body-control nodes such as seat adjusters, HVAC flap actuators, window lifts, and mirror motors. The MCPWM module drives DC motor H-bridges, the RTCC supports time-stamped diagnostics and scheduling, and 5V-tolerant I/O interfaces directly with legacy 12V-logic-conditioned switch inputs through simple dividers, cutting component count. LINbus transceivers connect directly to the UART through PPS mapping. The 32KB FLASH accommodates an OSEK-lite scheduler plus diagnostics with 1KB of RAM for state storage. Because the part is end-of-life, existing automotive programs should plan last-time-buy quantities or qualify the dsPIC33EP/C successors for future model years.
Recommended
Digital Power Supplies
In digital SMPS designs, the DSPIC33FJ32MC104T-E/ML supplies PWM generation, voltage-loop, and current-loop firmware control for buck, boost, and LLC topologies. The MCPWM module's complementary outputs with dead-time insertion drive half-bridge and synchronous-rectification stages, the three comparators provide hardware-level overcurrent protection that reacts faster than any firmware interrupt, and the 16-bit DSP core executes PI compensator math with multiply-accumulate efficiency at 16 MIPS. The CTMU can measure startup ramp timing, and PPS allows the UART/I2C stack to double as a PMBus-style telemetry interface. Attention should be paid to ADC trigger synchronization with the PWM period so sampling lands at the midpoint of the ripple - a standard Microchip digital-power reference-design pattern documented in the dsPIC33F application-note library.
Recommended
Capacitive Touch Interfaces
The integrated Charge Time Measurement Unit (CTMU) makes the DSPIC33FJ32MC104T-E/ML well suited to capacitive-touch keypads and proximity sensing inside appliance, automotive, and industrial panels. The CTMU charges the sensor pad with a controlled constant current and measures charge time, yielding repeatable, temperature-stable touch detection without a dedicated touch controller. Up to 20 open-drain/pull-up-capable I/O pins serve as sensor electrodes, and the RTCC can gate wakeups for low-power scanning. Firmware implements baseline tracking and hysteresis filtering in the 32KB FLASH. Compared with a discrete touch IC, the DSC combines touch decoding and load control (relay/PWM outputs via MCPWM) in one 44-QFN part, reducing BOM cost and board area while the AEC-Q100 grade supports automotive interior switch panels.
Recommended
Industrial Sensor and Actuator Nodes
With I2C, SPI, UART/IrDA, and LINbus connectivity, plus 5V-tolerant I/O and 10-16 mA pin drive, the DSPIC33FJ32MC104T-E/ML serves as a compact industrial sensor node aggregating analog inputs, driving actuators, and reporting over a field bus. The 16-bit DSP core performs FIR/IIR filtering and RMS calculation on acquired signals at 16 MIPS, the comparators provide threshold alarms in hardware, and the RTCC timestamps events for maintenance logging. Peripheral Pin Select lets the same PCB firmware-remap communication ports between UART, SPI, and I2C, simplifying product variants from one layout. The exposed-pad 44-QFN dissipates processor and I/O heat effectively when soldered to a 2-ounce copper ground plane, and the -40C to +125C range covers sealed outdoor enclosures.
Recommended
Embedded Motor-Control Development Platforms
The dsPIC33FJ32MC104 family's low pin count and Peripheral Pin Select make it an excellent teaching and prototyping platform for digital motor control and DSP fundamentals. At 16 MIPS with a hardware multiply-accumulate engine, the device executes real DSP primitives (filters, transforms) while simultaneously toggling MCPWM outputs - a combination general-purpose MCUs in the same price class cannot match. Microchip's MPLAB X IDE, XC16 compiler, and the dsPIC33F Explorer/reference boards support full in-circuit debugging of this exact die family via ICSP, and datasheet 70000652F plus the Family Reference Manual provide register-level documentation. For university labs and startup prototypes, the DSC delivers DSP-grade signal processing, PWM generation, and analog comparison in one sub-$6 44-QFN device as of 2026-09-27.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32MC104T-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32MC204-E/ML | DSPIC33FJ32MC304-E/ML | DSPIC33FJ32GP304-I/ML | DSPIC33FJ16GP304-I/ML | DSPIC33EP128GP504T-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-QFN (ML, 8x8 mm) exposed pad | 44-QFN (ML, 8x8 mm) - same | 44-QFN (ML, 8x8 mm) - same | 44-QFN (ML, 8x8 mm) - same | 44-QFN (ML, 8x8 mm) - same | 44-QFN (ML, 8x8 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Speed | 16-bit dsPIC33FJ, 16 MIPS | 16-bit dsPIC33FJ, 16 MIPS | 16-bit dsPIC33FJ, 16 MIPS | 16-bit dsPIC33FJ, 16 MIPS | 16-bit dsPIC33FJ, 16 MIPS | 16-bit dsPIC33EP, up to 70 MIPS |
| Program Memory (FLASH) | 32KB (11K x 24) | 32KB (11K x 24) | 32KB (11K x 24) | 32KB (11K x 24) | 16KB (5.5K x 24) | 128KB |
| Motor-Control Peripherals | MCPWM, 3 comparators, CTMU, RTCC | 2 PWM generators with independent timebases, PPS | MC-family PWM set | GP peripherals, no full MCPWM | GP peripherals, no full MCPWM | GP peripherals (EP generation) |
| Connectivity | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART |
| Temperature Grade | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
Key Differentiators
- Dedicated MCPWM motor-control module with CTMU and 3 comparators (vs DSPIC33FJ32GP304-I/ML)
- Extended -40C to +125C E-grade temperature range (vs DSPIC33FJ32GP304-I/ML)
- Twice the program memory of the entry GP device (vs DSPIC33FJ16GP304-I/ML)
- Lower-risk, familiar core vs next-generation migration (vs DSPIC33EP128GP504T-I/ML)
Design Notes
The 44-QFN (8x8 mm) ML package has a large exposed thermal pad on the underside that is the primary ground return. Solder it to a solid ground plane with an array of thermal vias (typically 5x5, 0.3 mm drill, filled or tented) to achieve low ground impedance and good heat spreading for the 3.3V core and I/O currents. Avoid routing signals under the exposed pad. Place the 0.1 uF decoupling capacitor within 2 mm of each VDD pin pair, plus one bulk 4.7-10 uF ceramic near the supply entry, per standard Microchip dsPIC33F layout guidance.
Peripheral Pin Select (PPS) is powerful but asymmetric: digital peripherals map to RPn pins, while certain analog-only and dedicated pins (MCLR, OSC1/OSC2, dedicated PGC/PGD on some family members) are not fully remappable. Lock the MCPWM output pin assignments early in schematic capture, then map UART/I2C/SPI around them. Also verify 5V-tolerant pin lists in datasheet 70000652F before connecting legacy 5V logic - tolerance is pin-specific, not universal. Finally, remember the part is EOL: allocate last-time-buy stock before committing it to new boards.
The dsPIC33FJ core requires a regulated 3.3V supply with adequate transient response for 16 MIPS core plus I/O switching. Budget for brown-out: enable the internal brown-out reset and configure the supply supervisor so FLASH writes (self-programming) never occur near the VDD minimum. For motor-drive boards sharing a 12V/24V bus with a switcher, add an LC filter or a dedicated LDO ahead of VDD because MCPWM edge jitter couples directly into the ADC readings used for current-loop control. Estimated: a 3.3V rail with 100 mV of switching ripple can degrade 10-bit ADC effective resolution by several bits during PWM transitions.
When using MCPWM to drive long traces to gate drivers, keep the PWM pair traces short and tightly coupled, and route current-sense feedback differentially back to the comparators/ADC. For LINbus and UART lines via PPS, series-terminate near the driver pin and keep stubs under a few centimeters to limit reflections at standard baud rates. External interrupt pins (INT0-INT2, two of which are remappable) used for rotor-position capture should avoid running adjacent to PWM outputs to prevent crosstalk-induced false edges.
Compliance Information
AEC-Q100 automotive qualification and 'Automotive' application listing confirmed by Hotenda and Octopart comparison data. RoHS/REACH/lead-free status not stated in the provided web data - verify on Microchip's product page.
