DSPIC33EP256MC206T-I/PT - 16-Bit 70 MIPS DSC 256KB | Microchip
料号： DSPIC33EP256MC206T-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.3 | $6.30 |
| 10 | $5.7 | $57.00 |
| 100 | $5.15 | $515.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.2 | $4,200.00 |
DSPIC33EP256MC206T-I/PT 概述
A digital signal controller combines the computational architecture of a digital signal processor with the peripheral integration and deterministic control behavior of a microcontroller. Within the power-management hierarchy of an embedded system, the DSC sits at the supervisory and control layer, directly driving power conversion and motor-control stages. The dsPIC33EP family belongs to Microchip's broader 16-bit embedded control portfolio, which spans PIC24 microcontrollers and dsPIC digital signal controllers sharing a common core and development ecosystem.
Key differentiating features include the 70 MIPS modified Harvard DSP core with single-cycle MAC and 40-bit accumulator, integrated high-speed PWM modules for motor control, quadrature encoder interface (QEI) inputs for position feedback, on-chip operational amplifiers and comparators for current-sense signal chains, and industrial temperature coverage from -40C to +85C denoted by the -I suffix.
Architecturally, the dsPIC33EP core uses a pipelined 16-bit instruction set with DSP engine extensions, enabling precision and energy-efficient motor control designs as described by Microchip. The MCPWM peripheral set generates complementary, dead-time-inserted PWM outputs essential for driving three-phase inverter bridges, while the QEI hardware decodes encoder signals without CPU overhead. Fast ADCs synchronized to the PWM cycle complete the closed-loop control datapath.
Typical applications include brushless DC and permanent-magnet synchronous motor drives, power factor correction and solar inverter control, and digital power supplies such as LLC and half-bridge converters. Integrated op-amps reduce external component count in current-sensing front ends.
A key design consideration: connect all VDD and VSS pin pairs, as omitting any supply pin can cause programming to fail; the VCAP pin requires a low-ESR capacitor for the internal 2.5V regulator per Microchip guidance.
This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found on the manufacturer product page alone.
直接替换替代料： DSPIC33EP256MC206T-I/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DSPIC33EP256MC206T-I/PT （相同外形与封装尺寸） ——差异在于 Operating Temperature, RAM, Packaging, Core, Core Architecture.
快速对比工具——选择替代料号进行并排对比：
DSPIC33EP256MC206-I/PT
✅ 直接替换✓ 有现货
$4.65 / 个
查看数据手册 →DSPIC33EP256MC206T-E/PT
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →DSPIC33EP128MC206-I/PT
✅ 直接替换✓ 有现货
$3.95 / 个
查看数据手册 →DSPIC33EP256MC206T-I/PT 最大额定值与电气特性
| Core Architecture | 16-bit dsPIC DSC (modified Harvard, DSP engine) |
| Max CPU Speed | 70 MIPS |
| Flash Program Memory | 256KB (85.5K x 24) |
| RAM | 32KB |
| 电源电压 | 3.3 V |
| 工作温度 | -40C to +85C (industrial, -I suffix) |
| 封装 | 64-TQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| Peripherals | MCPWM, QEI, OpAmps, Comparators |
| Product Family | dsPIC33EP 16-Bit Embedded Control Solutions |
| Packaging Suffix | T (Tape & Reel), PT (TQFP reel code) |
| Qualification (this grade) | Standard industrial (E/PT variant is AEC-Q100 automotive grade) |
| RoHS 状态 | Compliant |
| Development Ecosystem | MPLAB X IDE, XC16 compiler |
| Debug Support | Hardware breakpoints (4), ICSP/ICD via PGD/PGC |
| Supply Pin Requirement | All VDD/VSS pins must be connected (per Microchip) |
DSPIC33EP256MC206T-I/PT 引脚配置
| 引脚 1 | MCLR — Master clear reset (active low), programming voltage input |
| 引脚 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive voltage reference |
| 引脚 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative voltage reference |
| 引脚 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select 1 |
| 引脚 5 | AN3/INDX/CN5/RB3 — Analog input 3 / QEI index input |
| 引脚 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / QEI phase A / capture 7 |
| 引脚 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / QEI phase B / capture 8 |
| 引脚 8 | AN6/OCFA/IC1/RB6 — Analog input 6 / PWM fault A / capture 1 |
| 引脚 9 | AN7/OCFB/PWM1L/IC2/RB7 — Analog input 7 / PWM fault B / PWM1 low / capture 2 |
| 引脚 10 | VSS — Ground reference (must be connected) |
| 引脚 11 | OSC1/CLKI/RA2 — Oscillator crystal input / external clock input |
| 引脚 12 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output |
| 引脚 13 | VDD — 3.3V power supply (must be connected) |
| 引脚 14 | AN8/PWM1H/RB8 — Analog input 8 / PWM1 high output |
| 引脚 15 | AN9/PWM2L/RB9 — Analog input 9 / PWM2 low output |
| 引脚 16 | AN10/PWM2H/RB10 — Analog input 10 / PWM2 high output |
| 引脚 17 | AN11/PWM3L/RTCC/RB11 — Analog input 11 / PWM3 low / RTCC |
| 引脚 18 | VSS — Ground reference (must be connected) |
| 引脚 19 | AN12/PWM3H/RB12 — Analog input 12 / PWM3 high output |
| 引脚 20 | AN13/IC3/RB13 — Analog input 13 / capture 3 |
| 引脚 21 | AN14/IC4/RB14 — Analog input 14 / capture 4 |
| 引脚 22 | AN15/IC5/RB15 — Analog input 15 / capture 5 |
| 引脚 23 | VDD — 3.3V power supply (must be connected) |
| 引脚 24 | TCK/RC1 — JTAG test clock / port RC1 |
| 引脚 25 | TDI/RC2 — JTAG test data in / port RC2 |
| 引脚 26 | PWM4L/RE0 — PWM4 low output / port RE0 |
| 引脚 27 | PWM4H/RE1 — PWM4 high output / port RE1 |
| 引脚 28 | PWM5L/RE2 — PWM5 low output / port RE2 |
| 引脚 29 | PWM5H/RE3 — PWM5 high output / port RE3 |
| 引脚 30 | PWM6L/RE4 — PWM6 low output / port RE4 |
| 引脚 31 | PWM6H/RE5 — PWM6 high output / port RE5 |
| 引脚 32 | TDO/RC3 — JTAG test data out / port RC3 |
| 引脚 33 | VSS — Ground reference (must be connected) |
| 引脚 34 | VDD — 3.3V power supply (must be connected) |
| 引脚 35 | TMS/RC4 — JTAG test mode select / port RC4 |
| 引脚 36 | SDA/RG3 — I2C data / port RG3 |
| 引脚 37 | SCL/RG2 — I2C clock / port RG2 |
| 引脚 38 | INT0/RE8 — External interrupt 0 / port RE8 |
| 引脚 39 | RE9 — Port RE9 |
| 引脚 40 | VCAP — Internal regulator output - connect low-ESR capacitor to VSS |
| 引脚 41 | RG0 — Port RG0 |
| 引脚 42 | RG1 — Port RG1 |
| 引脚 43 | U2TX/RF5 — UART2 transmit / port RF5 |
| 引脚 44 | U2RX/RF4 — UART2 receive / port RF4 |
| 引脚 45 | SDI1/RF7 — SPI1 data in / port RF7 |
| 引脚 46 | SDO1/RF8 — SPI1 data out / port RF8 |
| 引脚 47 | SCK1/RF13 — SPI1 clock / port RF13 |
| 引脚 48 | SS1/RF12 — SPI1 slave select / port RF12 |
| 引脚 49 | VDD — 3.3V power supply (must be connected) |
| 引脚 50 | VSS — Ground reference (must be connected) |
| 引脚 51 | U1TX/RF3 — UART1 transmit / port RF3 |
| 引脚 52 | U1RX/RF2 — UART1 receive / port RF2 |
| 引脚 53 | PWM7L/RF6 — PWM7 low output / port RF6 |
| 引脚 54 | PWM7H/RF1 — PWM7 high output / port RF1 |
| 引脚 55 | PWM8L/RF0 — PWM8 low output / port RF0 |
| 引脚 56 | PWM8H/RD8 — PWM8 high output / port RD8 |
| 引脚 57 | PWM9L/RD9 — PWM9 low output / port RD9 |
| 引脚 58 | PWM9H/RD10 — PWM9 high output / port RD10 |
| 引脚 59 | RP47/RD11 — Remappable peripheral pin / port RD11 |
| 引脚 60 | RP48/RD12 — Remappable peripheral pin / port RD12 |
| 引脚 61 | AVDD — Analog power supply |
| 引脚 62 | AVSS — Analog ground |
| 引脚 63 | RPI49/RD13 — Remappable input pin / port RD13 |
| 引脚 64 | RP50/RD0 — Remappable peripheral pin / port RD0 |
典型应用
DSPIC33EP256MC206T-I/PT 适用于 6 应用s: Brushless DC / PMSM Motor Drives, Digital Power Supplies and LLC Converters, Solar Inverters and PFC Front Ends, Industrial Automation and Robotics, Battery Management and Charging Systems, Medical and Lab Instrumentation Control.
Brushless DC / PMSM Motor Drives
The DSPIC33EP256MC206T-I/PT is purpose-built for precision motor control: its 70 MIPS DSP core with single-cycle MAC runs field-oriented control (FOC) math, while the MCPWM module generates complementary six-channel PWM with hardware dead time for three-phase inverter bridges. The quadrature encoder interface (QEI) decodes position feedback without CPU load, and on-chip op-amps amplify shunt-current signals ahead of the fast ADC, reducing external components. Typical closed current loops run at tens of kHz with cycle-by-cycle PWM synchronization. Place the DSC between gate drivers (e.g., IRS2183-type half-bridge drivers) and the MOSFET bridge; the integrated peripherals remove the need for external analog conditioning, cutting BOM cost in BLDC and PMSM drives for industrial automation and appliances.
推荐
Digital Power Supplies and LLC Converters
In digitally controlled power supplies - LLC half-bridge, phase-shifted full-bridge, and PFC stages - the DSPIC33EP256MC206T-I/PT supplies the control loop: the 70 MIPS core executes voltage and current compensation at 100+ kHz update rates, and MCPWM produces the phase-shifted or complementary drive signals with precise dead time. The fast ADC, triggered by PWM events, samples output voltage and inductor current at consistent points in the switching cycle, minimizing ripple aliasing. On-chip comparators implement hardware cycle-by-cycle current limiting independent of firmware. The 3.3V industrial-temperature part integrates supervisory functions, and the 256KB FLASH leaves room for PID libraries, communication stacks (SMBus/PMBus-style telemetry via I2C/UART) and field firmware updates in server and telecom power stages.
推荐
Solar Inverters and PFC Front Ends
Grid-tied and off-grid solar inverters need simultaneous, phase-consistent control of a boost PFC stage and a DC-AC inverter stage; the DSPIC33EP256MC206T-I/PT covers both from one 64-TQFP device. Its 70 MIPS DSP engine sustains the cascaded control loops (maximum power point tracking outer loop, current-mode inner loops), while multiple MCPWM channels drive boost and bridge stages with hardware dead time and synchronous ADC triggers. On-chip comparators provide hardware overcurrent trips that act within the switching cycle even if software stalls. The 256KB FLASH accommodates MPPT algorithms, anti-islanding logic and communication. The industrial -40C to +85C rating suits outdoor string-inverter enclosures when paired with appropriate thermal design.
推荐
Industrial Automation and Robotics
Industrial nodes benefit from the DSPIC33EP256MC206T-I/PT's blend of DSP throughput and standard MCU peripherals. Servo axes use QEI hardware to track encoder position while the DSP core runs motion profiling and FOC torque loops at kHz rates. Multiple UART, SPI and I2C ports link to drives, sensors and factory networks, and the DMA engine offloads peripheral data movement, preserving CPU headroom for the control loop. The 256KB FLASH and 32KB RAM host protocol stacks, trajectory tables and diagnostics. The -I industrial temperature grade and 3.3V supply integrate cleanly with standard 24V industrial IO conditioning. Debugging is supported with four hardware breakpoints and ICSP/ICD through MPLAB X tooling.
推荐
Battery Management and Charging Systems
The DSPIC33EP256MC206T-I/PT serves as the main controller in lithium-ion battery chargers and BMS units: multiple ADC channels monitor cell voltages and temperatures, the on-chip comparators flag out-of-range cells in hardware, and MCPWM drives the synchronous buck or boost charge power stage with adaptive dead time for high efficiency. The DSP core implements CC/CV charging profiles, coulomb counting and cell balancing scheduling, while I2C connects to smart-battery front-end ICs and UART/CAN-style links report state-of-charge to hosts. The RTCC supports charge-log time stamping, and Sleep/Idle modes plus wake-on-interrupt keep housekeeping current low in portable and standby-charger products. The 64-TQFP pin count provides ample analog channel availability.
推荐
Medical and Lab Instrumentation Control
Benchtop and portable instrumentation - pumps, pipetting heads, centrifuges, and lab motorized stages - use the DSPIC33EP256MC206T-I/PT for motion and power control. The QEI interface reads optical encoder feedback from precision stage motors, the op-amps condition sensor signals, and MCPWM drives the motors quietly with high-resolution PWM. The 70 MIPS core runs PID and feed-forward compensation while UART/I2C/SPI link to a supervisory host that implements UI and data logging. The 3.3V, industrial-grade device's deterministic interrupt latency supports consistent sample timing for measurement channels. Microchip's long product lifecycle and second-source packaging options (tape-and-reel and tray) simplify qualification for regulated manufacturing environments.
推荐
推荐产品汇总
工程参考数据： DSPIC33EP256MC206T-I/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DSPIC33EP256MC206-I/PT | DSPIC33EP256MC206T-E/PT | DSPIC33EP128MC206-I/PT |
|---|---|---|---|---|
| Package | 64-TQFP (10x10) | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 256KB (85.5K x 24) | 256KB (85.5K x 24) | 256KB (85.5K x 24) | 128KB (42.75K x 24) |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| RAM | 32KB | 32KB | 32KB | 32KB |
| Operating Temperature | -40C to +85C (-I) | -40C to +85C (-I) | -40C to +125C (-E, AEC-Q100) | -40C to +85C (-I) |
| Automotive Qualification | No (industrial grade) | No | Yes (AEC-Q100 per FindIC) | No |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Peripherals | MCPWM, QEI, OpAmps, Comparators | MCPWM, QEI, OpAmps, Comparators | MCPWM, QEI, OpAmps, Comparators | MCPWM, QEI, OpAmps, Comparators |
关键差异点
- Extended-temperature automotive option on identical silicon （对比 DSPIC33EP256MC206T-E/PT)
- Double the program memory at the same footprint and price class （对比 DSPIC33EP128MC206-I/PT)
- Motor-control-specific peripheral integration （对比 DSPIC33EP256MC206-I/PT)
设计说明
Connect every VDD and VSS pin pair on the 64-TQFP device - Microchip explicitly states that if any supply pin pair is left unconnected, programming may fail. Place 0.1 uF ceramic capacitors at each VDD pin and one 4.7-10 uF bulk capacitor per supply group. The VCAP pin (pin 40) supplies the internal regulator and must have a low-ESR capacitor to VSS; using a wrong value or high-ESR part here is a common cause of brown-out and erratic behavior. Tie AVDD/AVSS to the analog rail with an RC filter for best ADC accuracy.
For motor-control layouts, route the PWM outputs (PWM1L/H through PWM9L/H) as short, matched pairs to the gate drivers and keep the ADC analog input traces away from PWM switching edges. Use a solid ground plane under the controller and star-connect AVSS to power ground at a single point near the current-shunt return. Decouple oscillator pins 11/12 with the crystal and its load capacitors placed within a few millimeters. Because the TQFP-64 has 0.5 mm pitch, verify solder-mask definitions against the Microchip package outline drawing before finalizing the land pattern.
Two frequent integration errors: (1) choosing the -E variant expecting -40C to +85C only, when it is actually the extended-temperature automotive part - confirm the temperature suffix before ordering; (2) assuming the T suffix reel can be split - many distributors sell full reels only, so use DSPIC33EP256MC206-I/PT tray parts for prototyping. Also verify that FLASH sizing leaves headroom: if firmware approaches 110KB, migrating to the 256KB sibling avoids a costly re-layout because the 128KB DSPIC33EP128MC206-I/PT shares the same footprint.
合规信息
Standard industrial part (-I suffix); the related DSPIC33EP256MC206T-E/PT variant is listed by FindIC as dsPIC Automotive, AEC-Q100 qualified. RoHS/REACH formal declarations should be retrieved from Microchip's product page.
