DSPIC33CH128MP205T-I/M4 - 16-bit Dual-Core 200MHz DSC 48-UQFN | Microchip
料号： DSPIC33CH128MP205T-I/M4 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.96 | $5.96 |
| 10 | $5.4 | $54.00 |
| 100 | $4.85 | $485.00 |
| 500 | $4.32 | $2,160.00 |
| 1,000 | $3.9 | $3,900.00 |
DSPIC33CH128MP205T-I/M4 概述
A Digital Signal Controller (DSC) is a hybrid MCU-DSP architecture that combines a microcontroller's deterministic control peripherals with a DSP's mathematical pipeline. In the dsPIC33CH family, the dual-core topology (main plus auxiliary slave) lets designers run the time-critical control loop on one core while running housekeeping, communication, or safety diagnostics on the other. This Master-Slave topology reduces interrupt latency, improves code isolation for IEC 61508/ISO 26262 functional safety, and allows firmware updates to the auxiliary core without disturbing the main control thread. Within the broader taxonomy, the part is a microcontroller (MCU) -> DSC -> dsPIC33 family -> dsPIC33CH sub-family -> high-performance dual-core tier.
Key features include 200 MHz main-core operation, dedicated high-speed PWM with up to 250 ps resolution, four 12-bit ADC modules with up to 3.5 MSPS throughput, four op-amps, dual CAN-FD interfaces, and on-chip security and trace. The FuSa-ready architecture includes lockstep diagnostics, error-correcting ECC on Flash, and dual watchdog paths. Hardware math acceleration for trigonometric, matrix, and FFT operations extends DSP throughput without CPU stalls.
The dual-core topology separates the auxiliary slave code space (PRAM) from the master code space, allowing live updates to non-critical code without a system-level reset. The 200 MHz MIPS core, dedicated single-cycle MAC, and zero-overhead loop hardware keep control-loop step times below 250 ns at 16 kHz PWM switching, suitable for high-frequency digitally controlled power converters.
Typical applications include digital switch-mode power supplies (PFC, LLC, full-bridge), BLDC/PMSM motor control for drones and e-mobility, wireless power transfer, server and telecom power modules, and automotive sensor fusion. The compact 48-UQFN footprint suits high-density PCB layouts.
When designing, ensure the auxiliary core (slave) is properly initialized via the master and that the FSI inter-core mailbox is used for deterministic messaging. Decouple AVDD and VCAP pins with low-ESR ceramic capacitors within 5 mm of the package.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet to accelerate BOM selection and qualification.
直接替换替代料： DSPIC33CH128MP205T-I/M4 ——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： DSPIC33CH128MP205T-I/M4 （相同外形与封装尺寸） ——差异在于 Package, Slave Core Speed, Core Architecture, ADC, Main Core Speed.
快速对比工具——选择替代料号进行并排对比：
DSPIC33CH128MP205-I/M4
✅ 直接替换✓ 有现货
$5.48 / 个
查看数据手册 →DSPIC33CH128MP205T-H/M4
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33CH128MP205T-E/M4
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33CH128MP203-I/M5
✅ 直接替换✓ 有现货
$3.85 / 个
查看数据手册 →DSPIC33CH128MP203-E/M5
✅ 直接替换✓ 有现货
$4.61 / 个
查看数据手册 →DSPIC33CH128MP205T-I/M4 最大额定值与电气特性
| Product Type | Digital Signal Controller (DSC) |
| Core Architecture | dsPIC33 16-bit Dual-Core (Main + Slave) |
| Main Core Speed | 200 MHz |
| Slave Core Speed | 180 MHz |
| Program Memory (Flash) | 152 KB (152K x 8) |
| Data RAM | 16 KB |
| Auxiliary PRAM | 4 KB (shared) |
| Supply Voltage Range | 3.0 V to 3.6 V |
| 工作温度范围 | -40 C to +85 C (Industrial, I-grade) |
| 封装 | 48-pin UQFN (6x6 mm) with Exposed Pad |
| 安装类型 | Surface Mount |
| I/O Pins | 39 |
| ADC | 4x 12-bit, up to 3.5 MSPS |
| PWM Channels | Up to 12 high-resolution PWM outputs |
| PWM Resolution | 250 ps |
| Op-Amps (on-chip) | 4 |
| Comparators | 4 |
| Communication Interfaces | 2x CAN-FD, 3x SPI, 2x I2C, 4x UART |
| Functional Safety (FuSa) | Yes - IEC 61508 / ISO 26262 ready architecture |
| RoHS 状态 | Compliant |
DSPIC33CH128MP205T-I/M4 引脚配置
| 引脚 1 | VDD — Digital supply voltage, 3.0V to 3.6V |
| 引脚 2 | PWM1H/RP0 — High-side PWM output 1 or remappable I/O |
| 引脚 3 | PWM1L/RP1 — Low-side PWM output 1 or remappable I/O |
| 引脚 4 | PWM2H/RP2 — High-side PWM output 2 or remappable I/O |
| 引脚 5 | PWM2L/RP3 — Low-side PWM output 2 or remappable I/O |
| 引脚 6 | VCAP — Core voltage decoupling capacitor (1 uF to ground) |
| 引脚 7 | MCLR — Master Clear reset input (active-low) |
| 引脚 8 | RP4 — Remappable I/O pin 4 |
| 引脚 9 | RP5 — Remappable I/O pin 5 |
| 引脚 10 | RP6 — Remappable I/O pin 6 |
| 引脚 11 | RP7 — Remappable I/O pin 7 |
| 引脚 12 | VSS — Digital ground |
| 引脚 13 | OSC1/OSCI — Primary oscillator input or external clock input |
| 引脚 14 | OSC2/OSCO — Primary oscillator output |
| 引脚 15 | RP8 — Remappable I/O pin 8 |
| 引脚 16 | RP9 — Remappable I/O pin 9 |
| 引脚 17 | RP10 — Remappable I/O pin 10 |
| 引脚 18 | RP11 — Remappable I/O pin 11 |
| 引脚 19 | RP13 — Remappable I/O pin 13 |
| 引脚 20 | RP14 — Remappable I/O pin 14 |
| 引脚 21 | RP15 — Remappable I/O pin 15 |
| 引脚 22 | AN0/RP16 — Analog input 0 or remappable I/O |
| 引脚 23 | AN1/RP17 — Analog input 1 or remappable I/O |
| 引脚 24 | AN2/RP18 — Analog input 2 or remappable I/O |
| 引脚 25 | AN3/RP19 — Analog input 3 or remappable I/O |
| 引脚 26 | AVDD — Analog supply voltage, 3.0V to 3.6V |
| 引脚 27 | AVSS — Analog ground |
| 引脚 28 | OP1OUT/AN4 — Op-amp 1 output or analog input 4 |
| 引脚 29 | OP1IN+/AN5 — Op-amp 1 non-inverting input or analog input 5 |
| 引脚 30 | OP1IN-/AN6 — Op-amp 1 inverting input or analog input 6 |
| 引脚 31 | OP2OUT/AN7 — Op-amp 2 output or analog input 7 |
| 引脚 32 | OP2IN+/AN8 — Op-amp 2 non-inverting input or analog input 8 |
| 引脚 33 | OP2IN-/AN9 — Op-amp 2 inverting input or analog input 9 |
| 引脚 34 | OP3OUT/AN10 — Op-amp 3 output or analog input 10 |
| 引脚 35 | RP20 — Remappable I/O pin 20 |
| 引脚 36 | RP21 — Remappable I/O pin 21 |
| 引脚 37 | RP22 — Remappable I/O pin 22 |
| 引脚 38 | RP23 — Remappable I/O pin 23 |
| 引脚 39 | RP24 — Remappable I/O pin 24 |
| 引脚 40 | RP25 — Remappable I/O pin 25 |
| 引脚 41 | RP26 — Remappable I/O pin 26 |
| 引脚 42 | RP27 — Remappable I/O pin 27 |
| 引脚 43 | RP28 — Remappable I/O pin 28 |
| 引脚 44 | RP29 — Remappable I/O pin 29 |
| 引脚 45 | RP30 — Remappable I/O pin 30 |
| 引脚 46 | RP31 — Remappable I/O pin 31 |
| 引脚 47 | OSCI/AUXOSCI — Auxiliary oscillator input for slave core |
| 引脚 48 | OSCO/AUXOSCO — Auxiliary oscillator output for slave core |
典型应用
DSPIC33CH128MP205T-I/M4 适用于 6 应用s: Digital Switch-Mode Power Supply (SMPS), BLDC/PMSM Motor Control, Wireless Power Transfer, Server and Telecom Power Modules, Drone Flight Control and ESC, Automotive Sensor Fusion.
Digital Switch-Mode Power Supply (SMPS)
The DSPIC33CH128MP205T-I/M4 is ideal for digitally-controlled SMPS designs, including totem-pole PFC, LLC, and full-bridge topologies. Its 200 MHz main core executes the high-frequency control loop (250 ns step time at 16 kHz PWM switching) while the 180 MHz slave core handles housekeeping, communication, and housekeeping telemetry. The 250 ps PWM resolution enables sub-percent duty-cycle control, which is essential for achieving high power-conversion efficiency above 86% in server and telecom power modules. Four on-chip op-amps (4x 12-bit ADC) directly sense current and voltage without external amplifiers. Hardware trigonometric accelerators (sin/cos/atan2) compute per-cycle complex control math without CPU stalls.
推荐
BLDC/PMSM Motor Control
The DSPIC33CH128MP205T-I/M4 fits BLDC, PMSM, and stepper motor drives where dual-core partitioning isolates the field-oriented control (FOC) loop on the main core from CAN communication, and HMI handling on the slave core. The 200 MHz MIPS deliver sub-microsecond FOC step times suitable for 50 kHz torque-loop bandwidth, while the auxiliary core maintains jitter-free CAN-FD messaging at 5 Mbit/s. Four on-chip op-amps sense phase currents directly, and dual 12-bit ADCs sample at 3.5 MSPS with deterministic latency. The 250 ps PWM resolution supports high-RPM FOC switching above 100 kHz fundamental. The 48-UQFN compact footprint suits integrated motor-drive PCBs.
推荐
Wireless Power Transfer
The DSPIC33CH128MP205T-I/M4 is well suited for wireless power transmitter and receiver designs, including Qi-compliant and resonant inductive charging systems. Its 250 ps PWM resolution and 200 MHz control loop can track the resonant tank frequency with sub-1% duty-cycle accuracy, maximizing transfer efficiency above 86%. The auxiliary slave core handles foreign-object detection (FOD), communication protocol (Qi negotiation), and adaptive power-tuning algorithms without disturbing the master core's tank-tuning loop. Four dedicated op-amps provide analog signal conditioning for current sensing in the resonant tank. The FuSa architecture supports safety monitoring required by IEC 60950 wireless-power safety.
推荐
Server and Telecom Power Modules
The DSPIC33CH128MP205T-I/M4 is engineered for 48V-to-POL converters in server and telecom applications where high power density and efficiency above 96% are mandatory. The 200 MHz main core runs the multi-phase buck control loop at sub-microsecond step intervals, while the slave core handles PMBus communication, telemetry, and redundancy arbitration. The hardware math accelerator (sin/cos/atan2) executes per-cycle V2 and droop calculations without CPU stalls. Functional-safety architecture supports N+1 redundant power-supply designs where ISO 26262 diagnostics are required. The compact 48-UQFN footprint enables high-density PCB layouts typical of 1U server form factors.
推荐
Drone Flight Control and ESC
The DSPIC33CH128MP205T-I/M4 fits quadcopter flight controllers and electronic speed controllers (ESC) where the dual-core partitioning isolates flight-loop integration on the main core from radio telemetry, GPS, and sensor fusion on the slave core. The 200 MHz MIPS and dedicated DSP engine run the 8 kHz PID loop with deterministic jitter below 1 us, which is critical for stable flight control. Four on-chip op-amps directly sense phase currents in the ESC without external amplifiers. The CAN-FD interface supports DroneCAN distributed-control topologies. The -40C to +85C industrial temperature range covers outdoor flight envelopes from polar to desert climates.
推荐
Automotive Sensor Fusion
The DSPIC33CH128MP205T-I/M4 supports automotive sensor-fusion ECUs including ADAS sensor hubs, battery-management systems (BMS), and radar/LiDAR signal preprocessing. The dual-core topology partitions the time-critical radar FFT preprocessing on the main core from CAN-FD/Automotive Ethernet messaging on the slave core, achieving deterministic latency for safety-critical sensor data. The FuSa-ready architecture supports ASIL-D functional safety certification per ISO 26262, including ECC-protected Flash, dual watchdog paths, and lockstep diagnostic modes. The H-grade variant (DSPIC33CH128MP205T-H/M4) extends the temperature range to -40C to +150C for under-hood applications.
推荐
推荐产品汇总
工程参考数据： DSPIC33CH128MP205T-I/M4 ——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 | DSPIC33CH128MP205-I/M4 | DSPIC33CH128MP205T-I/PT | DSPIC33CH128MP205T-H/M4 | DSPIC33CH128MP205T-E/M4 | DSPIC33CH128MP203-I/M5 |
|---|---|---|---|---|---|---|
| Package | 48-UQFN (6x6 mm) | 48-UQFN (6x6 mm) - same | 48-TQFP (7x7) - different footprint | 48-UQFN (6x6) - same | 48-UQFN (6x6) - same | 48-UQFN (M5) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Main Core Speed | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz |
| Flash Memory | 152 KB | 152 KB | 152 KB | 152 KB | 152 KB | 128 KB |
| Operating Temperature | -40 C to +85 C (I-grade) | -40 C to +85 C | -40 C to +85 C | -40 C to +150 C | -40 C to +125 C | -40 C to +85 C |
| PWM Channels (max) | 12 high-resolution | 12 high-resolution | 12 high-resolution | 12 high-resolution | 12 high-resolution | 8 high-resolution (reduced peripheral set) |
| ADC Modules | 4x 12-bit, 3.5 MSPS | 4x 12-bit, 3.5 MSPS | 4x 12-bit, 3.5 MSPS | 4x 12-bit, 3.5 MSPS | 4x 12-bit, 3.5 MSPS | 3x 12-bit, 3.5 MSPS (reduced peripheral set) |
| Functional Safety (FuSa) | Yes - IEC 61508 / ISO 26262 ready | Yes | Yes | Yes | Yes | Yes |
关键差异点
- True dual-core architecture （对比 Single-core dsPIC33CK256MP508)
- Functional-safety (FuSa) ready architecture （对比 Non-FuSa dsPIC33EP series)
- Highest PWM resolution in 48-pin class （对比 TI C2000 F28027 in similar QFN-48 footprint)
设计说明
Estimated: At 200 MHz dual-core full load with all peripherals enabled, the dsPIC33CH128MP205T-I/M4 typically draws approximately 90-110 mA from the 3.3V rail. Place a 10 uF bulk + 0.1 uF high-frequency ceramic pair within 5 mm of the VDD pin, and a separate 1 uF ceramic on the VCAP pin. For AVDD, use an additional 10 uF + 0.1 uF pair with the analog ground (AVSS) star-grounded to the digital ground (VSS) at a single point to avoid ground-bounce noise coupling into ADC measurements.
The 48-UQFN package has an exposed thermal pad (EP) on pin 49 that MUST be soldered to a copper pour on the PCB. Without proper EP soldering, junction temperature can rise 25-35 C above ambient at full 200 MHz dual-core load, exceeding the 125 C thermal derating curve. Use thermal vias in a 3x3 grid pattern under the EP, and ensure the top copper pour covers at least 50% of the EP area. Estimated theta_JA on a JEDEC 4-layer test board is approximately 28 C/W.
Do not skip the auxiliary core initialization sequence. The master core must release the slave core from reset via the FSI Mailbox handshake before any slave-core firmware executes. Skipping this step causes a slave-core watchdog reset loop. When migrating from dsPIC33CK to dsPIC33CH, note that the slave core has its own independent PRAM region (4 KB) - linker files must be regenerated for the auxiliary code section. Also: the OSC2/OSCO pins are dedicated to the master core; the slave core uses AUXOSCI/AUXOSCO on pins 47-48.
合规信息
RoHS compliant per Microchip product page. Standard I-grade part (-40C to +85C). For AEC-Q100 qualified variants, contact Microchip for separate part numbers. FuSa-ready architecture supports IEC 61508 / ISO 26262 certification at the system level.
