DSPIC33EP64MC202T-I/SO - 16-bit 70 MIPS DSC 64KB Flash | Microchip
MPN： DSPIC33EP64MC202T-I/SO ✓ 啟用中DSPIC33EP64MC202T-I/SO 概覽
A digital signal controller is a hybrid device that merges the computational throughput of a digital signal processor (DSP) with the peripheral integration and control-oriented architecture of a microcontroller (MCU). In the embedded systems hierarchy, the dsPIC33E family sits between general-purpose MCUs and dedicated DSPs, making it a power management IC-class solution for closed-loop control systems where both fast math and rich peripherals are required on a single chip.
Key differentiating features include motor-control PWM (MCPWM) outputs, a quadrature encoder interface (QEI), three on-chip operational amplifiers, four comparators, and a peripheral trigger generator (PTG) that offloads autonomous timing sequences from the CPU. Four DMA channels move data without core intervention, reducing interrupt latency in real-time control loops. The device operates from a 3.0V to 3.6V supply and is AEC-Q100 qualified for automotive environments.
Architecturally, the dsPIC33E core uses an enhanced Harvard pipeline with DSP multiply-accumulate (MAC) instructions and dual operand fetch, enabling single-cycle execution of filtering and transform algorithms such as FOC (field-oriented control) loops for PMSM and BLDC motors. Flash program memory is rated for the erase/write endurance specified in the manufacturer datasheet, and low-power modes including idle and doze reduce average system consumption.
Typical applications include precision BLDC/PMSM motor drives, digital power supplies (PFC and LLC control), automotive sensor interfaces, and industrial HVAC compressors, where the MCPWM, QEI, and integrated analog directly replace external op-amp and comparator circuitry.
Design consideration: the -I temperature grade covers -40C to +85C; for -40C to +125C ambient automotive cabins select the DSPIC33EP64MC202T-E/SO variant in the same 28-SOIC footprint. Decouple the VDD pins with 0.1uF ceramics placed within 5 mm of the supply pins.
This page synthesizes distributor inventory data, drop-in family alternatives, and practical design notes not consolidated in the manufacturer datasheet, with pricing references noted as of 2026-09-25.
直接替換替代品，適用於 DSPIC33EP64MC202T-I/SO — 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/SO （相同外形與佔位） — 差異在於 Operating Temperature, Package, Supply Voltage, Core Architecture, Packaging.
DSPIC33EP64MC202T-E/SO
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33EP64MC202-I/SO
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33EP128MC202T-I/SO
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33EP32MC202T-I/SO
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33FJ64MC202T-I/SO
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33EP64MC202T-I/SO 最大額定值與電氣特性
| Core Architecture | 16-bit dsPIC33E RISC |
| Max Core Speed | 70 MIPS (60 MHz clock) |
| Program Memory | 64KB (22K x 24) Flash |
| SRAM | 8KB |
| 供應電壓 | 3 V to 3.6 V (3.3 V nominal) |
| 封裝 | 28-pin SOIC |
| 安裝類型 | Surface Mount |
| DMA Channels | 4 |
| Timers | 5 |
| On-chip Op-Amps | 3 |
| Comparators | 4 |
| Motor Control PWM (MCPWM) | Yes |
| Quadrature Encoder Interface (QEI) | Yes |
| Peripheral Trigger Generator (PTG) | Yes |
| 工作溫度 | -40C to +85C (I grade) |
| Qualification | AEC-Q100 automotive |
| Packaging | Tape & Reel (T) |
| 生命週期狀態 | Active |
DSPIC33EP64MC202T-I/SO 28-pin soic 腳位配置指南
DSPIC33EP64MC202T-I/SO（28-pin soic 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/SO.
請參閱 資料表 以查看完整腳位配置。
典型應用
DSPIC33EP64MC202T-I/SO 適用於 6 應用s: BLDC/PMSM Motor Control, Digital Power Supplies, Automotive Sensor Interfaces, Industrial HVAC and Compressor Control, Portable Instrumentation and DSP Sensing, Embedded Network Nodes and Gateways.
BLDC/PMSM Motor Control
The DSPIC33EP64MC202T-I/SO is purpose-built for precision motor control: its MCPWM module generates complementary PWM pairs with hardware dead-time, the QEI decodes encoder feedback, and the 70 MIPS DSP core executes field-oriented control (FOC) with single-cycle MAC instructions. The three on-chip op-amps condition low-side shunt current signals without external amplifiers, and four comparators implement cycle-by-cycle overcurrent limiting entirely in hardware. Typical usage places the DSC between the encoder/ADC front end and the gate-driver stage, updating a 10-20 kHz PWM loop with latency low enough for smooth torque ripple performance on PMSM and BLDC motors used in servo drives, e-bikes, and industrial pumps.
推薦
Digital Power Supplies
In digitally controlled PFC, LLC, and buck converters, the DSPIC33EP64MC202T-I/SO replaces analog control loops with firmware: the high-speed ADC samples output voltage and inductor current, and the MCPWM module adjusts duty cycle at switching frequencies of 100-500 kHz with nanosecond-resolution PWM updates. The four comparators provide hardware fast-trip protection ahead of software response, critical during short-circuit events. The PTG (peripheral trigger generator) sequences ADC sampling and PWM updates autonomously, keeping loop jitter independent of CPU load. The 3.3V supply and AEC-Q100 qualification suit telecom rectifiers, server PSUs, and automotive onboard chargers where digital control enables adaptive mode switching and telemetry.
推薦
Automotive Sensor Interfaces
The AEC-Q100 qualification of the DSPIC33EP64MC202T-I/SO makes it appropriate for automotive cabin and body electronics such as position sensing, HVAC damper control, and pump drivers. The 12-bit ADC with up to 4 DMA channels streams multi-channel sensor data without CPU intervention, while the on-chip op-amps amplify ratiometric signals from Hall or resistive sensors. Its -40C to +85C -I grade covers cabin environments; for engine-bay exposure use the same-die DSPIC33EP64MC202T-E/SO (+125C) drop-in variant. CAN/LIN communication is added via the UART/SPI ports with a transceiver, and the PTG automates periodic sensor polling so the core remains available for protocol handling and diagnostics.
推薦
Industrial HVAC and Compressor Control
Compressors and blowers in commercial HVAC require variable-speed drives with sensorless or encoder-based control; the DSPIC33EP64MC202T-I/SO supplies the MCPWM with dead-time insertion for the inverter bridge, back-EMF observation via the ADC and comparators for sensorless start-up, and the DSP core for slip calculations in real time. The 8KB SRAM accommodates control state machines plus a Modbus/UART communication stack simultaneously, and the -40C to +85C industrial temperature range covers rooftop unit environments. Four DMA channels offload phase-current sampling at each PWM cycle, so control-loop determinism is preserved even while servicing the fieldbus, improving overall system reliability in continuous-duty equipment.
推薦
Portable Instrumentation and DSP Sensing
The DSP engine of the DSPIC33EP64MC202T-I/SO executes FIR/IIR filters and FFT windowing on the 70 MIPS core, making it a compact choice for handheld analyzers, vibration monitors, and acoustic sensors. The 64KB Flash holds algorithm plus GUI logic, while the 3.3V low-power modes (idle and doze) extend battery life by scaling core frequency between active measurement bursts. On-chip op-amps condition microphone or accelerometer signals before the ADC, reducing BOM count in space-constrained enclosures. Firmware field updates are supported by self-programming Flash, and the 28-SOIC hand-solderable package simplifies prototyping before volume assembly on tape-and-reel stock.
推薦
Embedded Network Nodes and Gateways
With UART, SPI, and I2C ports plus the PTG autonomous sequencer, the DSPIC33EP64MC202T-I/SO serves as an intelligent bridge between field sensors and higher-level controllers. A typical node samples sensors on a PTG-driven schedule, applies DSP filtering to reject noise, and packages results for a CAN or RS-485 backbone via an external transceiver on the SPI/UART port. The 70 MIPS headroom allows simultaneous protocol servicing and local analytics, while 4 DMA channels keep data movement off the CPU. AEC-Q100 qualification extends use to industrial-automotive crossover equipment such as agricultural telematics and fleet sensor pods exposed to wide temperature swings.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC33EP64MC202T-I/SO — 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 | DSPIC33EP64MC202T-E/SO | DSPIC33EP64MC202-I/SO | DSPIC33EP128MC202T-I/SO | DSPIC33EP32MC202T-I/SO | DSPIC33FJ64MC202T-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 40 MIPS |
| Flash Memory | 64KB (22K x 24) | 64KB | 64KB | 128KB | 32KB | 64KB |
| 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 |
| Temperature Range | -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) | -40C to +85C (I grade) |
主要差異化特點
- Extended-temperature drop-in available (對比DSPIC33EP64MC202T-E/SO)
- Twice the core performance of the previous generation (對比DSPIC33FJ64MC202T-I/SO)
- Flash scaling without redesign (對比DSPIC33EP32MC202T-I/SO)
設計說明
Provide a single clean 3.3V rail within the 3.0-3.6V window. Decouple each VDD pin with 0.1uF X7R ceramics placed within 5 mm of the pin, plus one bulk 10uF near the IC. The dsPIC33EP family includes an on-chip regulator requiring the recommended capacitor on VDDCORE per the manufacturer datasheet; omitting it causes brown-out resets. Estimated: at 70 MIPS the typical active current is in the tens of mA range (per datasheet curves), so a 100 mA-budget LDO is sufficient for the core logic alone.
Keep the MCPWM output pairs and their gate-driver traces short and symmetric to minimize dead-time asymmetry between high- and low-side switches. Route analog sensor lines (op-amp inputs to ADC channels) away from PWM and clock traces; use a ground plane and star-connect the analog ground at the VSS pin. Place the ICSP connector (MCLR, PGD, PGC, VDD, VSS) on every production board for field firmware updates.
Do not assume pin assignments are fixed: the dsPIC33EP family uses Peripheral Pin Select (PPS), so many digital functions must be remapped in firmware at startup, and a wrong PPS map is the most common bring-up failure. Also, the -I grade is limited to +85C ambient; using it in a +105C enclosure environment violates the rating, so verify worst-case ambient before choosing -I over -E. Configure unused I/O as outputs driving low to avoid floating-pin EMI issues.
合規資訊
AEC-Q100 automotive qualification confirmed by datasheets.com part data (updated 13-MAY-2024). RoHS/REACH/lead-free/halogen-free declarations not present in verified web data - obtain Certificate of Compliance from the official Microchip product page for your date code.
