DSPIC33EP64MC202T-I/SS - 70 MIPS 16-bit DSC 64KB Flash | Microchip
MPN： DSPIC33EP64MC202T-I/SS ✓ 啟用中DSPIC33EP64MC202T-I/SS 概覽
A digital signal controller combines the computational architecture of a microcontroller with the multiply-accumulate (MAC) DSP engine of a digital signal processor. Within the power-management hierarchy, DSCs such as the dsPIC33EP family sit above basic MCUs, providing deterministic, cycle-accurate control loops essential for motor control and switched-mode power conversion, where software executes proportional-integral-derivative and field-oriented control algorithms in real time.
Key features include the 70 MIPS dsPIC DSC core with integrated DSP instructions, a high-speed Motor Control PWM (MCPWM) module, a Quadrature Encoder Interface (QEI) for position feedback, three integrated operational amplifiers, and four analog comparators. These motor-control-oriented peripherals eliminate external analog front-end components, reducing bill-of-material cost in inverter and servo designs. The PTG (Pulse Train Generator) peripheral offloads simple pulse sequencing from the CPU.
Architecturally, the dsPIC33EP core pairs a 16-bit MCU pipeline with a dedicated DSP engine supporting single-cycle MAC operations, bit-reversed addressing for FFTs, and zero-overhead loops. The 60 MHz internal clock source (per Mouser data) supports the rated 70 MIPS performance, and the 22K x 24 instruction-word Flash supports self-programming for field upgrades.
Typical applications include brushless DC and PMSM motor control, sensorless field-oriented-control drives, digital power supplies and power factor correction, and industrial sensor signal conditioning exploiting the on-chip op amps and comparators.
Design consideration: the 3.0 V to 3.6 V supply range requires a dedicated 3.3 V regulator with adequate decoupling; MCLR programming pins must follow ICSP layout guidance for in-circuit debug with PICkit or ICD tools.
This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing references are as of 2026-09-25.
直接替換替代品，適用於 DSPIC33EP64MC202T-I/SS — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： DSPIC33EP64MC202T-I/SS （相同外形與佔位） — 差異在於 Data Bus Width, RAM, Core Architecture, Programming Interface.
DSPIC33EP64MC202-I/SS
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33EP64MC202T-E/SS
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33EP64GP502T-I/SS
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33EP32MC202T-I/SS
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33EP128MC202T-I/SS
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33EP64MC202T-I/SS 最大額定值與電氣特性
| Core Architecture | 16-bit dsPIC DSC with DSP engine |
| Maximum CPU Speed | 70 MIPS |
| Clock Frequency | 60 MHz |
| Flash Memory | 64 KB (22K x 24 instruction words) |
| RAM | 8 KB |
| 供應電壓 | 3 V to 3.6 V |
| 封裝 | 28-SSOP |
| 安裝類型 | Surface Mount |
| Peripherals | MCPWM, QEI, 3 OpAmp, 4 Comparators, PTG |
| Timers | General purpose timers (per datasheet) |
| 工作溫度 | -40C to +85C (I grade) |
| Lifecycle Stage | ACTIVE |
| 資料匯流排寬度 | 16-bit (per DigiKey listing) |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| Family | dsPIC33EP (dsPIC 33EP) |
DSPIC33EP64MC202T-I/SS 28-ssop 腳位配置指南
DSPIC33EP64MC202T-I/SS（28-ssop 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： DSPIC33EP64MC202T-I/SS.
請參閱 資料表 以查看完整腳位配置。
典型應用
DSPIC33EP64MC202T-I/SS 適用於 6 應用s: BLDC/PMSM Motor Control, Sensorless Field-Oriented Control (FOC), Digital Power Supplies and PFC, Industrial Automation and Control Panels, Power Inverters and Solar Micro-Inverters, Audio Signal Processing and DSP Embedded Systems.
BLDC/PMSM Motor Control
The DSPIC33EP64MC202T-I/SS fits brushless DC and PMSM drive designs because its MCPWM module generates complementary PWM with hardware dead-time insertion while the 70 MIPS DSP core closes current loops in software at PWM frequency. The Quadrature Encoder Interface reads position sensors directly, and the four on-chip comparators provide cycle-accurate overcurrent trip without external circuitry. In a typical 24 V BLDC fan or pump drive, the controller reads phase currents through the three integrated op amps, executes field-oriented-control MAC operations within one PWM period, and updates the duty cycle - achieving deterministic control timing that a general-purpose MCU at the same clock rate cannot match.
推薦
Sensorless Field-Oriented Control (FOC)
Sensorless FOC requires fast, deterministic math: the dsPIC33EP64MC202 DSP engine performs single-cycle 16-bit multiply-accumulate and zero-overhead loops, letting the 70 MIPS core run Clarke/Park transforms and PI current regulators inside a 10-20 kHz PWM cycle. The three on-chip op amps condition low-side shunt-resistor feedback, and the four comparators implement hardware overcurrent trips faster than any software interrupt path. Back-EMF observers and sliding-mode estimators execute in the remaining CPU budget. Because the MC202 integrates these analog front-end blocks, a two-shunt sensorless inverter can be built around this single 28-SSOP device plus gate drivers, cutting component count and board area versus discrete op-amp solutions.
推薦
Digital Power Supplies and PFC
Switched-mode power supplies and power-factor-correction stages benefit from the MC202's deterministic control loop: the high-speed PWM module supports voltage-mode, current-mode, and phase-shifted topologies with programmable dead time, while the 70 MIPS core runs average-current-mode control at hundreds of kilohertz update rates. The on-chip comparators implement fast cycle-by-cycle current limiting, and the ADC-triggering architecture synchronizes sampling to the PWM center for noise-free feedback. The 22K x 24 instruction Flash holds both the control firmware and soft-start/protection state machines. Placing the DSP engine in the control path yields tighter transient response than fixed-frequency analog controllers while preserving programmability for different output voltages.
推薦
Industrial Automation and Control Panels
In factory automation nodes, the DSPIC33EP64MC202T-I/SS serves as a compact control processor combining sensor acquisition and actuator drive. Its industrial -40C to +85C operating range tolerates panel environments, the 3.0 V to 3.6 V supply simplifies rail design alongside standard logic, and the PTG (Pulse Train Generator) offloads repetitive pulse sequencing - such as stepper clocks or alarm strobes - without CPU intervention. The 21 available I/O pins (28-SSOP) interface limit switches, rotary encoders via QEI, and relays through driver transistors. The DSP engine additionally runs FFT-based vibration monitoring for predictive maintenance, making one 28-pin device sufficient for sensing, analysis, and actuation in distributed I/O modules.
推薦
Power Inverters and Solar Micro-Inverters
Grid-tied and off-grid inverter designs use the MC202's complementary PWM with dead-time control to drive H-bridge and 3-phase power stages, while the DSP engine executes MPPT (maximum power point tracking) algorithms and grid-synchronization PLLs in real time. The four on-chip comparators provide hardware overcurrent and overvoltage protection paths that react faster than firmware, essential for reliability certifications. The 64 KB Flash accommodates MPPT, inverter modulation, communication, and housekeeping code with margin for field upgrades via self-programming. The compact 28-SSOP footprint suits the densely packed power boards of micro-inverters, where controller area directly constrains the thermal and layout budget.
推薦
Audio Signal Processing and DSP Embedded Systems
The dsPIC33EP DSP engine, with its single-cycle MAC, dual operand fetch, and bit-reversed addressing for FFTs, supports embedded audio tasks such as active noise cancellation, audio effects, and tone generation at moderate sample rates. The 3.0 V to 3.6 V operating range pairs directly with common audio codecs and DACs, and the 60 MHz clock allows FIR/IIR filtering of multiple channels in the 70 MIPS budget. The QEI module can decode mechanical volume or jog controls, while PTG generates low-jitter timing pulses for system synchronization. Although not a dedicated audio DSP, the MC202 offers a cost-effective single-chip option when a product needs both general control logic and light DSP processing.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC33EP64MC202T-I/SS — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | DSPIC33EP64MC202-I/SS | DSPIC33EP64MC202T-E/SS | DSPIC33EP64GP502T-I/SS | DSPIC33EP32MC202T-I/SS | DSPIC33EP128MC202T-I/SS |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) |
| Flash Memory | 64 KB (22K x 24) | 64 KB (22K x 24) | 64 KB (22K x 24) | 64 KB (22K x 24) | 32 KB | 128 KB |
| Motor-Control Peripherals (OpAmp/Comparators) | 3 OpAmp, 4 Comparators, MCPWM, QEI | 3 OpAmp, 4 Comparators, MCPWM, QEI - same | 3 OpAmp, 4 Comparators, MCPWM, QEI - same | No op amps, standard PWM | 3 OpAmp, 4 Comparators, MCPWM, QEI - same | 3 OpAmp, 4 Comparators, MCPWM, QEI - same |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| Packaging Format | Tape & Reel (T) | Tube | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
主要差異化特點
- Integrated analog front end (3 op amps + 4 comparators) (對比DSPIC33EP64GP502T-I/SS)
- Extended temperature option in identical footprint (對比DSPIC33EP64MC202T-E/SS)
- Scalable Flash within the same pinout (對比DSPIC33EP32MC202T-I/SS and DSPIC33EP128MC202T-I/SS)
設計說明
The 3.0 V to 3.6 V supply range requires a clean, regulated 3.3 V rail. Place 0.1 uF ceramic decoupling capacitors at every VDD/VSS pin pair as close to the package as possible, plus one bulk 4.7 uF to 10 uF capacitor per supply domain. In motor-drive environments, the PWM switching injects noise into the shared ground - use a star ground or solid ground plane and physically separate power-stage ground returns from the DSC ground. Never exceed 3.6 V; 5 V logic must be level-shifted or current-limited at the pins.
Reserve footprint pads for MCLR, PGD, and PGC ICSP access on every production board, ideally with a 5-pin header, since the dsPIC33EP cannot be reprogrammed in-circuit without them. Keep the MCLR pull-up (typically 10 kohm to 3.3 V) close to the pin. The on-chip op amps' input pins should route short, symmetric traces to shunt resistors to minimize Kelvin-sensing error in current-feedback loops. Follow Microchip family reference manual layout guidance for ADC reference decoupling.
Verify Flash-size headroom before choosing the DSPIC33EP32MC202T-I/SS cost-down variant - FOC firmware plus communication stacks routinely exceed 32 KB. When substituting the GP502 variant, remember it lacks the three op amps and MC-tuned PWM, so existing motor-control firmware will not link without peripheral rework. The -T tape-and-reel and non-T tube parts are interchangeable electrically, but moisture-sensitivity-level bake requirements apply after floor-life exposure before reflow.
When using the MCPWM module to drive gate circuits, keep PWM output traces short and away from analog feedback traces; gate-driver switching edges (tens of nanoseconds) will capacitively couple into high-impedance op-amp inputs. Route the QEI encoder signals as a twisted pair or with ground guard traces if the encoder is more than 10 cm away, and use the input Schmitt/hysteresis configuration available on dsPIC33EP digital input pins for noisy industrial encoder signals.
合規資訊
Lifecycle Stage reported as ACTIVE (digchip index). Specific RoHS/REACH/lead-free certificates were not present in the retrieved web data; confirm via Microchip product page compliance documentation.
