DSPIC33FJ128MC202-E/SO - 40 MIPS 16-bit Motor Control DSC | Microchip
料号： DSPIC33FJ128MC202-E/SO ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.1 | $6.10 |
| 10 | $5.52 | $55.20 |
| 100 | $4.78 | $478.00 |
| 500 | $4.25 | $2,125.00 |
| 1,000 | $3.86 | $3,860.00 |
DSPIC33FJ128MC202-E/SO 概述
A digital signal controller combines a 16-bit microcontroller (MCU) architecture with digital signal processor (DSP) functionality in a single chip. In the system hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP: it executes real-time control loops and math-intensive algorithms such as PID, transforms, and field-oriented motor control with DSP-engine multiply-accumulate instructions, while retaining the peripherals and interrupt structure of a classic microcontroller.
Key differentiating features include an extended temperature range of -40C to +125C with AEC-Q100 automotive qualification, two 3-phase motor control PWM modules with independent timebases, Peripheral Pin Select (PPS) for flexible peripheral mapping, and an advanced 10-bit ADC supporting simultaneous motor current sensing.
Architecturally, the dsPIC33FJ family shares a modified Harvard 16-bit core with the PIC24H family and is pin compatible with PIC24H devices, enabling seamless migration. DSP instructions and hardware loops let the device sustain 40 MIPS execution for high-speed repetitive computations without external assist.
Typical applications include brushless DC (BLDC) and permanent magnet synchronous motor (PMSM) drives, power factor correction converters, digital UPS systems, and industrial sensing nodes that demand deterministic real-time control in a small footprint.
Design consideration: the 40 MIPS instruction cycle derives from an internal PLL on the 3.3 V rail, so follow Microchip's power decoupling guidance on all VDD/AVDD pins and route PWM outputs away from the analog inputs.
This page synthesizes distributor pricing, same-family drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： DSPIC33FJ128MC202-E/SO ——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： DSPIC33FJ128MC202-E/SO （相同外形与封装尺寸） ——差异在于 Operating Temperature, Programming Interface, Package, Core Architecture, Mounting Type.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ128MC202-I/SO
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.05 / 个
查看数据手册 →DSPIC33FJ128MC202-E/SP
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.79 / 个
查看数据手册 →DSPIC33FJ64MC202-E/SO
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ32MC202-E/SO
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.55 / 个
查看数据手册 →DSPIC33FJ16MC202-E/SO
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ128MC202-E/SO 最大额定值与电气特性
| Core | dsPIC33F 16-bit DSC |
| Instruction Speed | up to 40 MIPS |
| Flash Memory | 128 KB (128K x 8) |
| SRAM | 16 KB |
| 电源电压 | 3.3 V |
| 工作温度 | -40C to +125C (E grade, automotive) |
| 封装 | 28-SOIC (0.295 in, 7.50 mm width) |
| 安装类型 | Surface Mount |
| Qualification | AEC-Q100 (automotive) |
| Series | dsPIC 33F, Motor Control family |
| Special Peripherals | Motor Control PWM, DMA |
| Pin Compatibility | Compatible with PIC24H family |
| 引脚数量 | 28 |
| Packaging Option | Tube |
| Programming Interface | ICSP via PGECx/PGEDx pairs |
DSPIC33FJ128MC202-E/SO 引脚配置
| 引脚 1 | MCLR — Master clear reset / programming voltage input |
| 引脚 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive voltage reference / change notification |
| 引脚 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative voltage reference / change notification |
| 引脚 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select 1 / change notification |
| 引脚 5 | AN3/INDX/CN5/RB3 — Analog input 3 / quadrature index / change notification |
| 引脚 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / quadrature A input / input capture 7 |
| 引脚 7 | VDD — Digital power supply (3.3 V) |
| 引脚 8 | VSS — Digital ground |
| 引脚 9 | OSC1/CLKI — Oscillator input / external clock input |
| 引脚 10 | OSC2/CLKO/RC15 — Oscillator output / clock output / port RC15 |
| 引脚 11 | RF2/U1RX/SDI1/EMUD1 — UART1 receive / SPI data in / emulation |
| 引脚 12 | RF3/U1TX/SDO1/EMUC1 — UART1 transmit / SPI data out / emulation |
| 引脚 13 | RF4/SCL1/EMUD3 — I2C1 clock / emulation |
| 引脚 14 | RF5/SDA1/EMUC3 — I2C1 data / emulation |
| 引脚 15 | VSS — Digital ground |
| 引脚 16 | VDD — Digital power supply (3.3 V) |
| 引脚 17 | RF12/PGED3/EMUD0 — Port RF12 / programming data channel 3 / emulation |
| 引脚 18 | RF13/PGEC3/EMUC0 — Port RF13 / programming clock channel 3 / emulation |
| 引脚 19 | RE0/PWM1L1 — PWM1 low-side output 1 / port RE0 |
| 引脚 20 | RE1/PWM1H1 — PWM1 high-side output 1 / port RE1 |
| 引脚 21 | RE2/PWM1L2 — PWM1 low-side output 2 / port RE2 |
| 引脚 22 | RE3/PWM1H2 — PWM1 high-side output 2 / port RE3 |
| 引脚 23 | RE4/PWM1L3 — PWM1 low-side output 3 / port RE4 |
| 引脚 24 | RE5/PWM1H3 — PWM1 high-side output 3 / port RE5 |
| 引脚 25 | RE8/PGED2 — Port RE8 / programming data channel 2 |
| 引脚 26 | RE9/PGEC2 — Port RE9 / programming clock channel 2 |
| 引脚 27 | AVDD — Analog power supply (3.3 V) |
| 引脚 28 | AVSS — Analog ground |
典型应用
DSPIC33FJ128MC202-E/SO 适用于 6 应用s: BLDC / PMSM Motor Control, Digital Power Conversion, Automotive Auxiliary Actuators, Industrial Sensing and Condition Monitoring, Embedded Audio and Signal Processing, RC Servo and Robotics Control.
BLDC / PMSM Motor Control
The DSPIC33FJ128MC202-E/SO is purpose-built for precision motor control: its dsPIC33F core sustains 40 MIPS, enough to close field-oriented control (FOC) current loops at 20-50 kHz PWM frequencies with DSP multiply-accumulate instructions. Two 3-phase motor-control PWM modules with independent timebases, dead-time insertion, and complementary outputs drive three-phase inverters directly, while the 10-bit ADC samples phase currents with motor-control PWM triggering for synchronized capture. The E-grade -40C to +125C AEC-Q100 qualification suits automotive pumps, fans, and actuators. Firmware for sensorless observers and lookup tables fits comfortably in the 128 KB Flash, with 16 KB SRAM holding control states and compensation variables.
推荐
Digital Power Conversion
In switch-mode power supplies, power factor correction (PFC), and digital UPS systems, the DSPIC33FJ128MC202-E/SO replaces analog control loops with firmware-defined control at 40 MIPS. The motor-control PWM modules provide high-resolution complementary outputs with programmable dead time for half-bridge and full-bridge stages, and DMA offloads ADC result transfers so the CPU maintains deterministic loop timing. A 3.3 V supply and 28-SOIC footprint let the controller sit directly on the power board near gate drivers. The 128 KB Flash accommodates multiple operating modes (CCM, burst, protection state machines) plus a bootloader for field firmware updates in deployed power products.
推荐
Automotive Auxiliary Actuators
The AEC-Q100 qualification and -40C to +125C E-grade rating make the DSPIC33FJ128MC202-E/SO suitable for automotive auxiliary drives: HVAC blower motors, coolant pumps, throttle actuators, and wiper systems. Motor-control PWM with fault inputs enables hardware shutdown on overcurrent, while Peripheral Pin Select remaps UART/CAN-adjacent peripherals to fit existing wiring loom interface designs. The 128 KB Flash supports dual-bank firmware strategies for OTA-style updates. Designers should verify the target OEM's EMC requirements with the PWM switching frequency, as the 28-SOIC package limits power dissipation - the DSC controls the drive, while a discrete gate driver stage handles motor current.
推荐
Industrial Sensing and Condition Monitoring
For vibration, current, and acoustic condition monitoring, the DSPIC33FJ128MC202-E/SO's DSP engine executes FFT and FIR filtering at 40 MIPS while the MCU peripherals handle sensor interfaces over UART/SPI/I2C. The 16 KB SRAM buffers time-domain samples for spectral analysis, and the 10-bit ADC with DMA streams data without CPU intervention. The 128 KB Flash holds both acquisition firmware and onboard classification routines, enabling standalone edge decisions without a host processor. The wide -40C to +125C E-grade suits motor-mounted sensors near hot machinery, and the 28-SOIC package fits compact sensor heads with minimal PCB area.
推荐
Embedded Audio and Signal Processing
The dsPIC33F DSP engine with 40-bit accumulators and dual fetch executes audio filters, tone generation, and acoustic processing at 40 MIPS, making the DSPIC33FJ128MC202-E/SO viable for industrial intercoms, alarm tone synthesis, and active noise attenuation prototypes. SPI and UART interfaces connect to audio codecs, and DMA keeps sample rates deterministic. Although not a dedicated audio DSP, its 128 KB Flash supports substantial coefficient tables and multichannel processing in one 3.3 V, 28-pin device. The extended temperature grade permits audio electronics inside outdoor or engine-bay-adjacent enclosures where consumer codecs would exceed ratings.
推荐
RC Servo and Robotics Control
Robotics joint controllers benefit from the DSPIC33FJ128MC202-E/SO's combination of 40 MIPS real-time loop closure and motor-control PWM with 4 PWM generator channels for multi-axis small robots or gimbal motors. Current-loop FOC per axis runs in the DSP engine while UART/CAN handles higher-level communication with the robot controller. Peripheral Pin Select simplifies routing encoder inputs to the QEA/QEB quadrature-capable pins. The 128 KB Flash supports trajectory interpolation and safety limits onboard, and the -40C to +125C range survives outdoor robotics and drone-adjacent actuator environments in the small 28-SOIC outline.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ128MC202-E/SO ——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 | DSPIC33FJ128MC202-I/SO | DSPIC33FJ128MC202-E/SP | DSPIC33FJ64MC202-E/SO | DSPIC33FJ32MC202-E/SO |
|---|---|---|---|---|---|
| Package | 28-SOIC (7.50 mm) | 28-SOIC (7.50 mm) - same | 28-SPDIP (through-hole) | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB | 128 KB | 64 KB | 32 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 8 KB | 4 KB |
| Core Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +125C |
| AEC-Q100 Qualification | Qualified (automotive) | No (industrial grade) | Qualified (automotive) | Qualified (automotive) | Qualified (automotive) |
关键差异点
- Extended automotive temperature range （对比 DSPIC33FJ128MC202-I/SO)
- Largest Flash in the MC202 28-SOIC family （对比 DSPIC33FJ64MC202-E/SO)
- Same function, SMT-optimized footprint （对比 DSPIC33FJ128MC202-E/SP)
设计说明
Connect all VDD (pins 7, 16) and AVDD (pin 27) pins with independent decoupling: 0.1 uF ceramic per pin plus one 4.7-10 uF bulk capacitor per supply domain. AVDD should be filtered (ferrite bead + capacitor) from the digital VDD rail so the ADC reference sees quiet supply noise. Estimated: a motor drive switching 20 kHz PWM on six SOIC I/O will inject di/dt noise onto VSS; a solid ground plane under the 28-SOIC keeps ground bounce within ADC resolution limits.
Route the motor-control PWM outputs (pins 19-24) away from analog inputs RB0-RB4 (pins 2-6) to prevent switching noise coupling into the 10-bit ADC. Keep the crystal on OSC1/OSC2 (pins 9-10) within 10-12 mm of the device with short traces and guard with ground. MCLR (pin 1) needs a 4.7-10 k pull-up and an ICSP header wired to a matched PGECx/PGEDx pair (pins 25/26 or 17/18) - use PGEC2/PGED2 as a pair, never mixing channels.
Do not power the device above 3.6 V - the dsPIC33FJ family is a 3.3 V core with no 5 V tolerance on standard I/O; level-shift or use series resistors when interfacing 5 V peripherals. Verify code fits the chosen Flash size before substituting a smaller FJ32/FJ16 variant. The '-E' grade (-40C to +125C) is required for automotive/enclosed hot environments - do not substitute the '-I' 85C part in engine-bay or sealed-enclosure applications without thermal derating analysis.
合规信息
Distributor listings (Hotenda) categorize this part as 'Automotive, AEC-Q100'. RoHS status is typical for active Microchip SOIC parts; confirm RoHS/REACH certificates on the Microchip product page.
