DSPIC33EP128MC202T-E/MM - 16-bit 60 MIPS DSC 128KB Flash | Microchip
MPN: DSPIC33EP128MC202T-E/MM β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.92 | $4.92 |
| 10 | $4.48 | $44.80 |
| 100 | $4.05 | $405.00 |
| 500 | $3.72 | $1,860.00 |
| 1,000 | $3.41 | $3,410.00 |
DSPIC33EP128MC202T-E/MM Overview
A digital signal controller combines the computational capability of a microcontroller with the math throughput of a DSP engine. Within the power-management hierarchy, the dsPIC33EP sits between general-purpose MCUs and dedicated DSPs, making it a single-chip solution for embedded control systems that need both real-time control loops and signal-processing tasks.
Key features include an enhanced 16-bit dsPIC DSC core with integrated DSP instruction support, dedicated motor-control peripherals such as MCPWM and QEI (quadrature encoder interface), two on-chip op-amps and three comparators, and a peripheral trigger generator (PTG). Connectivity covers I2C, SPI, UART/USART, IrDA, and LINbus, enabling flexible communication with drives, sensors, and host systems.
Technically, the device integrates a high-performance PWM module purpose-built for brushless DC, permanent-magnet synchronous, AC induction, and stepper motor control. The DSP engine with single-cycle MAC, dual working register arrays, and hardware division support FOC (field-oriented control) algorithms while the analog front-end (op-amps, comparators, ADC) closes current loops without external amplifiers.
Typical applications include precision motor drives, digital power supplies, industrial automation nodes, automotive auxiliary systems, and sensor fusion in embedded control. The wide peripheral set allows a single DSC to replace MCU-plus-external-PWM-controller designs.
When designing with this part, budget the VCAP/VDDCORE pin with the recommended low-ESR capacitor, and verify the -40C to +125C extended (E) temperature grade against your application environment.
This page synthesizes distributor availability, same-footprint drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP128MC202T-E/MM β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
DSPIC33EP128MC202-E/MM
β Drop-Inπ Reference alternative (not in catalog)
DSPIC33EP128MC202T-E/MMVAO
β Drop-Inπ Reference alternative (not in catalog)
DSPIC33EP128MC202-I/MM
β Drop-Inπ Reference alternative (not in catalog)
DSPIC33EP256MC202-E/MM
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33EP64MC202-E/MM
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33EP128MC202T-E/MM Maximum Ratings & Electrical Characteristics
| Core | dsPIC 33EP 16-bit DSC |
| Maximum CPU Speed | 60 MIPS |
| Program Memory Size | 128 KB (43K x 24) Flash |
| RAM Size | 16 KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 28-QFN-S (6x6 mm) |
| I/O Count | 21 |
| Communication Interfaces | I2C, SPI, UART/USART, IrDA, LINbus |
| Motor Control Peripherals | MCPWM, QEI |
| Analog Peripherals | 2 Op-Amps, 3 Comparators, 10/12-bit ADC |
| Timers | PTG (Peripheral Trigger Generator), core timers |
| Qualification | AEC-Q100 (automotive grade) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Debug / Programming | ICSP, IEEE 1149.2 compatible JTAG boundary scan |
DSPIC33EP128MC202T-E/MM Pin Configuration
| Pin 1 | MCLR β Master clear reset (active low), programming voltage input |
| Pin 2 | AN0/VREF+/CN2/RB0 β Analog input 0 / positive voltage reference / change notification / port B bit 0 |
| Pin 3 | AN1/VREF-/CN3/RB1 β Analog input 1 / negative voltage reference / change notification / port B bit 1 |
| Pin 4 | AN2/SS1/CN4/RB2 β Analog input 2 / SPI slave select 1 / change notification / port B bit 2 |
| Pin 5 | AN3/INDX/CN5/RB3 β Analog input 3 / QEI index pulse / change notification / port B bit 3 |
| Pin 6 | OSC1/CLKI/CN6/RA2 β Crystal oscillator input / external clock input / change notification / port A bit 2 |
| Pin 7 | OSC2/CLKO/RC15 β Crystal oscillator output / clock output / port C bit 15 |
| Pin 8 | SOSCI/CN1/RA4 β Secondary oscillator input / change notification / port A bit 4 |
| Pin 9 | SOSCO/T1CK/CN0/RA3 β Secondary oscillator output / Timer1 external clock / change notification / port A bit 3 |
| Pin 10 | VDD β Positive supply (3.0 V to 3.6 V) |
| Pin 11 | VSS β Ground reference |
| Pin 12 | PGD/SDO1/U1TX/SDA1/RP3/RB4 β In-circuit debug data / SPI data out / UART1 TX / I2C data / remappable pin RP3 / port B bit 4 |
| Pin 13 | PGC/SCL1/U1RX/RP4/RB5 β In-circuit debug clock / I2C clock / UART1 RX / remappable pin RP4 / port B bit 5 |
| Pin 14 | VCAP β Internal core regulator capacitor connection (low-ESR capacitor to VSS required) |
| Pin 15 | AN5/RP1/RB1 β Analog input 5 / remappable peripheral pin RP1 / port B I/O |
| Pin 16 | AN4/RP2/RB2 β Analog input 4 / remappable peripheral pin RP2 / port B I/O |
| Pin 17 | AN9/RP13/RB15 β Analog input 9 / remappable peripheral pin RP13 / port B I/O |
| Pin 18 | AN10/RP12/RB14 β Analog input 10 / remappable peripheral pin RP12 / port B I/O |
| Pin 19 | AN11/RP11/RB13 β Analog input 11 / remappable peripheral pin RP11 / port B I/O |
| Pin 20 | AN12/RP10/RB12 β Analog input 12 / remappable peripheral pin RP10 / port B I/O |
| Pin 21 | TMS/RP8/RB8 β JTAG test mode select / remappable peripheral pin RP8 / port B bit 8 |
| Pin 22 | TDO/RP9/RB9 β JTAG test data out / remappable peripheral pin RP9 / port B bit 9 |
| Pin 23 | PWM1H1/RE0 β Motor control PWM1 half-bridge high output / port E bit 0 |
| Pin 24 | PWM1L1/RE1 β Motor control PWM1 half-bridge low output / port E bit 1 |
| Pin 25 | PWM1H2/RE2 β Motor control PWM2 half-bridge high output / port E bit 2 |
| Pin 26 | PWM1L2/RE3 β Motor control PWM2 half-bridge low output / port E bit 3 |
| Pin 27 | VDD β Positive supply (3.0 V to 3.6 V) |
| Pin 28 | VSS β Ground reference |
Typical Applications
DSPIC33EP128MC202T-E/MM is suitable for 6 applications: Brushless DC (BLDC) Motor Control, Industrial Automation and Motion Control, Automotive Auxiliary Systems, Digital Power Supplies and Converters, Embedded Sensing and IoT Nodes, Consumer Appliance Motor Drives.
Brushless DC (BLDC) Motor Control
The DSPIC33EP128MC202T-E/MM is purpose-built for BLDC motor control: its MCPWM module generates complementary PWM outputs with hardware dead-time insertion, while the QEI interface reads position feedback from encoders without CPU overhead. The integrated op-amps and comparators condition shunt-resistor current signals for phase-current sensing, enabling trapezoidal or field-oriented control (FOC) in a single chip at 60 MIPS. In a typical sensorless or sensored drive, the DSC runs the commutation loop while 128 KB Flash (43K x 24) holds the algorithm, startup sequencing, and protection code with headroom. The -40C to +125C temperature range supports drives mounted near heat-generating motors.
Recommended
Industrial Automation and Motion Control
In factory automation, this DSC controls servo drives, stepper motors, and positioning stages where the QEI quadrature encoder interface and MCPWM peripherals reduce external component count. Its 60 MIPS DSP engine executes PID and FOC control loops at high sampling rates, while LINbus, UART, SPI, and I2C interfaces connect to HMI panels, sensors, and higher-level PLC controllers. The 16 KB RAM supports control-state machines and communications buffering simultaneously. Industrial environments benefit from the extended -40C to +125C grade of the E-suffix part, tolerating enclosure heat near drives and power electronics, and the 28-QFN 6x6 mm footprint fits compact drive boards.
Recommended
Automotive Auxiliary Systems
As an AEC-Q100 qualified device in the extended temperature grade, the DSPIC33EP128MC202T-E/MM targets automotive auxiliary motor and actuator applications: electric power steering assist pumps, HVAC blower controls, throttle and damper actuators, and pump/fan drives. The 128 KB Flash (43K x 24) accommodates automotive-grade firmware with diagnostics and LIN bus communication required by body and chassis subsystems. Its 60 MIPS core and hardware DSP MAC execute sensorless motor algorithms reliably, and the integrated comparators provide over-current protection with microsecond response. Designers should follow Microchip automotive hardware design guidelines for EMC and supply robustness in 12V-vehicle environments.
Recommended
Digital Power Supplies and Converters
Switching power converters - PFC stages, LLC resonant supplies, and DC-DC converters - benefit from this DSC's high-resolution MCPWM outputs and fast comparators for cycle-by-cycle current limiting. At 60 MIPS, the DSP engine implements digital control loops with bandwidths suitable for server and telecom power, while the 43K x 24 instruction-word Flash stores compensation coefficients and firmware updaters. The ADC samples output voltage and current, and the PTG (peripheral trigger generator) sequences ADC/PWM operations autonomously, minimizing loop jitter. The 3.0 V to 3.6 V supply integrates cleanly with auxiliary bias rails generated from the converter's own standby winding.
Recommended
Embedded Sensing and IoT Nodes
With two on-chip op-amps, three comparators, a multi-channel ADC, and a full peripheral set (SPI, I2C, UART), this DSC serves as a compact sensing node that conditions analog signals directly without external front-end ICs. The DSP engine performs FFT filtering and digital signal conditioning locally - useful for vibration, acoustic, and power-monitoring applications - while UART/I2C links telemetry to wireless modules. The 128 KB Flash (43K x 24) and 16 KB RAM host protocol stacks and data buffers. Its -40C to +125C rating suits outdoor and machine-mounted sensors, and the 28-QFN 6x6 mm package keeps node PCB area small.
Recommended
Consumer Appliance Motor Drives
Home appliances - fans, blenders, washing machines, and range hoods - increasingly use sensorless BLDC drives controlled by a single DSC. The DSPIC33EP128MC202T-E/MM provides the MCPWM complementary outputs, integrated analog current-sense path, and 60 MIPS headroom to run sliding-mode-observer or BEMF-based sensorless algorithms in appliance-grade firmware. The 3.0 V to 3.6 V operation with on-chip regulator simplifies the power tree, and the 28-QFN-S (6x6 mm) footprint fits the compact driver PCBs typical of appliances. The extended temperature grade tolerates hot motor compartments, and LINbus/UART links support appliance main-board communication.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128MC202T-E/MM β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128MC202-E/MM | DSPIC33EP128MC202T-E/MMVAO | DSPIC33EP128MC202-I/MM | DSPIC33EP256MC202-E/MM | DSPIC33EP64MC202-E/MM |
|---|---|---|---|---|---|---|
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS |
| Flash Program Memory | 128 KB (43K x 24) | 128 KB (43K x 24) | 128 KB (43K x 24) | 128 KB (43K x 24) | 256 KB (86K x 24) | 64 KB (22K x 24) |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB |
| Operating Temperature | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) |
| Automotive Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 | Standard industrial | AEC-Q100 | AEC-Q100 |
| Packaging | Tape & Reel (T) | Tray | Tape & Reel (T) | Tray | Tray | Tray |
Key Differentiators
- Extended temperature with automotive qualification in tape-and-reel (vs DSPIC33EP128MC202-I/MM)
- Same cost class with double the program memory available (vs DSPIC33EP256MC202-E/MM)
- Automated-assembly packaging (vs DSPIC33EP128MC202-E/MM)
Design Notes
The dsPIC33EP integrates an on-chip core regulator, so connect the VCAP pin (pin 14) to ground with the recommended low-ESR capacitor combination per the Microchip family datasheet and reference designs (typically 10 uF ceramic plus 0.1 uF). Do not load the VCAP pin externally and do not substitute a high-ESR electrolytic - core regulator instability causes erratic resets. Supply VDD at 3.0 V to 3.6 V; there is no 5V-tolerant variant of this family, so level-shift 5V sensor or bus signals.
For motor-control layouts, place the DSC close to the gate-driver ICs to keep PWM1H/L traces short and matched in length per half-bridge pair, minimizing shoot-through risk from ringing. Route the shunt-resistor sense lines to the integrated op-amp inputs as a differential pair with a ground guard. Decouple each VDD pin (10, 27) with 0.1 uF placed within 2 mm, and provide a solid ground plane. Follow the layout practices in Microchip motor-control reference designs for the dsPIC33EP family.
Three frequent mistakes with this part: (1) forgetting MCLR pull-up and ICSP access on pins 1, 12, 13, blocking in-circuit programming with PICkit/ICD tools; (2) selecting the -I industrial grade for an application above +85C instead of this -E extended grade rated to +125C; (3) mapping peripherals to RPx remappable pins without checking pin 14 (VCAP) is not an I/O - it must never be driven. Review the pin multiplexing table in the family datasheet before locking the schematic.
The crystal pair on OSC1/OSC2 (pins 6-7) and the secondary oscillator on SOSCI/SOSCO (pins 8-9) need load capacitors matched to the crystal specification; keep crystal traces under 10 mm and guard them with ground. JTAG pins TMS/TDO (21, 22) should be pulled to defined levels in production boards where boundary scan is not used. For low-EMI motor drives, enable the MCPWM dead-time and consider spread-spectrum PWM options available in the family PWM module.
Compliance Information
AEC-Q100 qualification and automotive grade designation per Microchip product/distributor data. RoHS/lead-free status follows standard Microchip production; obtain the specific lot compliance certificate from Microchip or the distributor.
