DSPIC33EP128MC204T-I/TL - 70MIPS 16-bit DSC 128KB Flash | Microchip
MPN: DSPIC33EP128MC204T-I/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.52 | $3.52 |
| 10 | $3.34 | $33.40 |
| 100 | $3.17 | $317.00 |
| 500 | $3.02 | $1,510.00 |
| 1,000 | $2.88 | $2,880.00 |
DSPIC33EP128MC204T-I/TL Overview
A digital signal controller combines the compute architecture of a microcontroller with DSP-capable instructions in a single chip. Within the power management hierarchy of embedded systems, the dsPIC33E family sits above general-purpose PIC MCUs and beside dedicated DSPs, offering a dsPIC DSC core with integrated DSP engine, hardware multiply-accumulate, and enhanced motor-control peripherals on one silicon die.
Key features include a 16-bit dsPIC33E core running at up to 70 MIPS, 128KB of ECC-free self-programmable FLASH, peripheral features such as MCPWM (motor control PWM), integrated operational amplifiers, analog comparators, and connectivity via I2C, SPI, UART/USART, IrDA, LINbus, and QEI (quadrature encoder interface). These peripherals make the part particularly efficient for field-oriented motor control and closed-loop digital power conversion.
Architecturally, the dsPIC33EP core provides single-cycle MAC, hardware divide support, and an extensive interrupt vector table, allowing deterministic real-time control loops. The integrated op-amps and comparators reduce external analog component count in current-sensing applications, while the MCPWM module generates complementary PWM outputs with dead-time insertion for three-phase inverter stages.
Typical applications include precision motor control for industrial drives, brushless DC (BLDC) and permanent magnet synchronous motor (PMSM) control, digital power supplies, and embedded control systems requiring DSP filtering. The 44-pin VTLA footprint suits compact, thermally demanding designs.
When designing with this device, verify flash and RAM budgets: the 128KB/16KB configuration is mid-range within the MC204 family, and the T suffix indicates tape-and-reel packaging for automated assembly. Thermal dissipation at 70 MIPS operation is moderate, but a solid ground plane under the QFN exposed pad is recommended.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33EP128MC204T-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 DSPIC33EP128MC204T-I/TL (same form factor and footprint) — differing in Communication Interfaces, Core Architecture, Operating Temperature, Package, Product Family.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP256MC204T-I/TL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →DSPIC33EP128MC202T-I/TL
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MC204T-I/TL
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP256MC202T-I/TL
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MC204T-I/TL Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E DSC core |
| Maximum CPU Speed | 70 MIPS |
| Program Memory (FLASH) | 128KB (43K x 24) |
| RAM | 16KB (per findic/RS data; Microchip USA listing states 8KB) |
| Package | 44-VTLA (6x6 mm), surface mount |
| Pin Count | 44 |
| Communication Interfaces | I2C, SPI, UART/USART, IrDA, LINbus, QEI |
| Motor Control Peripherals | MCPWM (motor control PWM) |
| Analog Peripherals | Integrated op-amps, comparators |
| Product Family | dsPIC33EP / dsPIC33E DSC |
| Mounting Type | Surface Mount |
| Temperature Grade (I suffix) | -40C to +85C |
| Packaging | Tape & Reel (T suffix) |
| Primary Target Application | High-performance precision motor control |
DSPIC33EP128MC204T-I/TL 44-vtla (6x6 mm), surface mount Pin Configuration Guide
Pin configuration for DSPIC33EP128MC204T-I/TL (44-vtla (6x6 mm), surface mount 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 DSPIC33EP128MC204T-I/TL.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128MC204T-I/TL is suitable for 6 applications: Precision Motor Control (FOC), Digital Power Conversion, Industrial Automation and Sensing, Automotive-Adjacent Embedded Control (Non-AEC), Consumer Appliance Motor Drives, Robotics and UAV Flight Controllers.
Precision Motor Control (FOC)
The DSPIC33EP128MC204T-I/TL is purpose-built for high-performance precision motor control. Its 70 MIPS dsPIC33E core executes field-oriented control (FOC) loops for PMSM and BLDC motors with single-cycle multiply-accumulate instructions, while the MCPWM module generates complementary PWM signals with dead-time insertion for three-phase inverter bridges. Integrated op-amps amplify shunt-resistor current feedback and comparators provide cycle-by-cycle overcurrent protection, reducing external component count. With 128KB FLASH, the controller holds both the control firmware and compensator lookup tables. QEI support enables encoder-based servo positioning, making the part suitable for industrial drives, robotics, and energy-efficient appliances.
Recommended
Digital Power Conversion
In digital power supplies, LLC converters, and PFC stages, the DSPIC33EP128MC204T-I/TL provides deterministic control-loop execution at 70 MIPS with low PWM-jitter characteristics required by peak-current-mode and voltage-mode topologies. The MCPWM peripheral supports high-resolution PWM updates for precise duty-cycle control, while integrated comparators implement fast cycle-by-cycle current limiting without CPU intervention, protecting power stages during transients. The 128KB FLASH accommodates advanced control algorithms including adaptive dead-time and soft-start sequencing. Using this DSC eliminates dedicated analog control ICs, allowing firmware-updatable compensation that can be re-tuned across product revisions without hardware redesign.
Recommended
Industrial Automation and Sensing
For industrial automation nodes, the DSPIC33EP128MC204T-I/TL combines multiple communication channels - I2C, SPI, UART/USART, IrDA, and LINbus - allowing a single controller to bridge sensor buses, human-machine interfaces, and field networks. The 16KB RAM buffers process data from analog front ends amplified by the integrated op-amps, and the -40C to +85C industrial temperature grade (I suffix) supports deployment in uncontrolled factory environments. The 44-VTLA (6x6 mm) package saves board space in dense I/O modules. Quadrature encoder input (QEI) also suits position feedback in actuators, conveyor counters, and axis synchronization tasks within larger PLC-based systems.
Recommended
Automotive-Adjacent Embedded Control (Non-AEC)
The DSPIC33EP128MC204T-I/TL serves non-safety-critical embedded control in vehicle ecosystem equipment such as battery testers, diagnostic tools, and auxiliary motor controllers where the industrial -40C to +85C temperature grade is sufficient. LINbus connectivity aligns with vehicle sub-network protocols, and QEI handles position sensing in throttle or wiper actuator test rigs. The 70 MIPS DSP core runs digital filtering on sensor signals, while 128KB FLASH retains calibration tables across firmware updates. Designers should note this part is not AEC-Q100 qualified; for in-vehicle safety-relevant functions, Microchip offers qualified variants in other dsPIC33 families and packages.
Recommended
Consumer Appliance Motor Drives
High-efficiency appliances - washing machines, air conditioners, fans, and pumps - increasingly use sensorless BLDC drives, a workload matched to the DSPIC33EP128MC204T-I/TL. Its integrated op-amps condition back-EMF or shunt-current signals on-chip, comparators provide fast protection, and the 70 MIPS core executes sensorless observers (sliding-mode or MRAS) in real time. At approximately $3.52 per unit (as of 2026-09-23), the cost fits consumer BOM targets while 128KB FLASH leaves room for feature sets like eco-mode scheduling. Tape-and-reel packaging (T suffix) supports high-volume automated SMT assembly lines used in appliance manufacturing.
Recommended
Robotics and UAV Flight Controllers
In robotics and UAV subsystems, the DSPIC33EP128MC204T-I/TL acts as a dedicated motor-control coprocessor alongside a main flight computer. Its QEI interface reads wheel and gimbal encoders, MCPWM drives gimbal brushless motors with smooth complementary PWM, and the 70 MIPS DSP engine runs gyro signal filtering with single-cycle MAC operations. The compact 44-VTLA (6x6 mm) package suits weight- and space-constrained airframes, and the 16KB RAM holds filter state variables for multi-axis stabilization. UART/USART links provide a clean telemetry bridge to the primary flight controller without loading its real-time loop.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128MC204T-I/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP256MC204T-I/TL | DSPIC33EP128MC202T-I/TL | DSPIC33EP64MC204T-I/TL |
|---|---|---|---|---|
| Package | 44-VTLA (6x6 mm) | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| FLASH Program Memory | 128KB (43K x 24) | 256KB (87K x 24) | 64KB (22K x 24) | 64KB (22K x 24) |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Motor Control PWM (MCPWM) | Yes | Yes | Yes | Yes |
| Integrated Op-Amps / Comparators | Yes | Yes | Yes | Yes |
| Communication Interfaces | I2C, SPI, UART, IrDA, LINbus, QEI | I2C, SPI, UART, IrDA, LINbus, QEI | I2C, SPI, UART, IrDA, LINbus, QEI | I2C, SPI, UART, IrDA, LINbus, QEI |
Key Differentiators
- Balanced 128KB FLASH / 16KB RAM memory configuration (vs DSPIC33EP128MC202T-I/TL)
- Integrated analog (op-amps + comparators) reduces BOM (vs DSPIC33EP64MC204T-I/TL)
- Trade-off: not AEC-Q100 qualified (vs DSPIC33EP128MC204T-E/ML)
Design Notes
The 44-VTLA (6x6 mm) package exposes a thermal pad on the underside that must be soldered to a solid ground plane. Use a 3x3 or 4x4 via array under the pad to connect to internal ground layers, improving both thermal dissipation at 70 MIPS operation and signal-integrity for the analog peripherals (op-amps, comparators). Keep crystal or internal oscillator traces short and route analog sense lines away from MCPWM outputs to prevent switching noise coupling into current-sense amplifiers.
Package suffix confusion is the most frequent ordering error for this device: /TL is the 44-VTLA thin QFN while /ML is the 44-pin QFN-S with a different footprint - they are not interchangeable on the same PCB. Also note the T suffix means tape-and-reel (3000-unit reels); ordering /I/TL for prototypes yields a full reel. Verify peripheral pin assignment through the datasheet peripheral pin select (PPS) tables, since I2C, SPI, UART, and QEI functions are software-mapped rather than hard-wired to fixed pins.
Estimated: at 70 MIPS, core current draw is typically in the tens-of-mA range per dsPIC33E family norms, so decouple both VDD pins with 0.1 uF ceramics placed within 2 mm of each pin, plus a 4.7-10 uF bulk capacitor. Provide separate filtered supply entry for the analog (AVDD) domain feeding the op-amps and comparators to preserve analog accuracy. In motor-control designs, star-ground the power stage return so MCPWM switching currents do not circulate through the DSC analog ground reference.
Compliance Information
Compliance data not stated in provided web sources; verify on the Microchip product page or distributor compliance documentation. AEC-Q100: the -I suffix indicates industrial grade; no automotive qualification is indicated in the provided data.
