DSPIC33CH256MP205-I/PT - Dual-Core 16-bit DSC 256KB Flash TQFP-48 | Microchip
MPN: DSPIC33CH256MP205-I/PT ✓ Hoạt độngDSPIC33CH256MP205-I/PT Tóm tắt
A DSC (digital signal controller) is a hybrid device that combines a microcontroller's deterministic peripheral set with a DSP engine's MAC unit and SIMD instructions. In the taxonomy of microelectronics, a DSC sits between a microcontroller (MCU) and a digital signal processor (DSP), inheriting DSP-grade multiply-accumulate throughput while retaining on-chip ADCs, PWMs, and communication peripherals. This positions the dsPIC33CH family as a power management and motor-control optimized MCU/DSP hybrid for high-end embedded designs.
Key specifications include 200 MHz maximum CPU clock on the master (180 MHz on the slave), 8 DMA channels for low-overhead data movement, 5 general-purpose timers, dual 16-bit high-resolution PWM generators with 250 ps resolution, CAN FD peripheral, integrated op-amps and comparators for current sensing, and a 12-bit ADC with up to 3.5 MSPS sampling. Functional-safety hardware (ISO 26262-ready features) and live-update Flash support round out the integrated peripherals, enabling closed-loop FOC motor control, digital power conversion, and wireless charging at high switching frequencies.
Architecturally the device pairs a 16-bit dsPIC core with single-cycle MAC, a barrel shifter, and a 40-bit accumulator, achieving 100 MIPS sustained throughput at 200 MHz. The slave core exposes its own peripherals and program memory, allowing designers to partition firmware into real-time and non-real-time domains for improved isolation and certification paths. Hardware interlocks between cores and shared peripheral semaphores simplify inter-core messaging without software arbitration overhead.
Typical applications include field-oriented control (FOC) of PMSM/BLDC motors for industrial drives, on-board EV chargers and DC/DC converters using digital control loops, fan and pump control, server and telecom switched-mode power supplies (SMPS), digital illumination, and functional-safety robotics where two independent compute domains are required. The wide operating temperature range of -40C to +85C (industrial) suits outdoor and factory-floor deployments.
When designing with this DSC, allocate separate linker sections for the master and slave images, plan inter-core FIFOs and shared RAM carefully, and provide adequate bulk decoupling close to the AVDD/VDD pins to keep switching noise away from the analog front end. Compared with a single-core MCU plus external DSP coprocessor, the integrated dual-core topology reduces PCB area, lowers BOM cost, and shortens BOM risk on multi-source motor-control designs.
This page synthesizes distributor pricing, dual-core peripheral trade-offs, and drop-in same-package alternatives that are not aggregated in the manufacturer datasheet, including pin-to-pin variants for memory size and temperature grade.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33CH256MP205-I/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với DSPIC33CH256MP205-I/PT (cùng hình factor và footprint) — khác nhau ở Core Architecture, Package, ADC, Operating Temperature, Slave Core Speed.
DSPIC33CH128MP205-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33CH256MP205-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33CH512MP205-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33CH256MP505-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33CH256MP206-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33CH256MP205-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | Dual-core 16-bit dsPIC33 DSC (master + slave) |
| Maximum CPU Frequency (master) | 200 MHz (100 MIPS) |
| Maximum CPU Frequency (slave) | 180 MHz (90 MIPS) |
| Program Memory (Flash) | 256 KB |
| Data RAM | 32 KB |
| Điện áp cung cấp | 3.0 V to 3.6 V (nominal 3.3 V) |
| DMA Channels | 8 |
| General-Purpose Timers | 5 |
| High-Resolution PWM Resolution | 250 ps |
| ADC | 12-bit, up to 3.5 MSPS |
| CAN FD | Yes |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Hộp | 48-pin TQFP (7x7 mm) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân DSPIC33CH256MP205-I/PT
| Chân 1 | SDA1/RP45/PWM1H — I2C1 data / remappable peripheral / PWM |
| Chân 2 | SCL1/RP46/PWM1L — I2C1 clock / remappable peripheral / PWM |
| Chân 3 | AN0/RP32/RA0 — Analog input / remappable / port A bit 0 |
| Chân 4 | AN1/RP33/RA1 — Analog input / remappable / port A bit 1 |
| Chân 5 | VDD — Digital supply voltage (3.3V) |
| Chân 6 | VSS — Digital ground |
| Chân 7 | OSCI/CLKI/RA2 — Crystal oscillator input / port A bit 2 |
| Chân 8 | OSCO/CLKO/RA3 — Crystal oscillator output / port A bit 3 |
| Chân 9 | MCLR — Master clear (reset) input |
| Chân 10 | PGED1/RP20/AN20 — Programming data / remappable / analog |
| Chân 11 | PGEC1/RP21/AN21 — Programming clock / remappable / analog |
| Chân 12 | AN2/RP34/RB0 — Analog input / remappable / port B bit 0 |
| Chân 13 | AN3/RP35/RB1 — Analog input / remappable / port B bit 1 |
| Chân 14 | AN4/RP36/RB2 — Analog input / remappable / port B bit 2 |
| Chân 15 | AVDD — Analog supply voltage |
| Chân 16 | AVSS — Analog ground |
| Chân 17 | AN5/RP37/RB3 — Analog input / remappable / port B bit 3 |
| Chân 18 | PWM2H/RP38/RB4 — High-resolution PWM / remappable / port B bit 4 |
| Chân 19 | PWM2L/RP39/RB5 — High-resolution PWM / remappable / port B bit 5 |
| Chân 20 | PWM3H/RP40/RB6 — High-resolution PWM / remappable / port B bit 6 |
| Chân 21 | PWM3L/RP41/RB7 — High-resolution PWM / remappable / port B bit 7 |
| Chân 22 | VCAP — Internal voltage regulator output capacitor |
| Chân 23 | PWM4H/RP42/RC0 — High-resolution PWM / remappable / port C bit 0 |
| Chân 24 | PWM4L/RP43/RC1 — High-resolution PWM / remappable / port C bit 1 |
| Chân 25 | PWM5H/RP44/RC2 — High-resolution PWM / remappable / port C bit 2 |
| Chân 26 | PWM5L/RP55/RC3 — High-resolution PWM / remappable / port C bit 3 |
| Chân 27 | RC4 — Port C bit 4 |
| Chân 28 | RC5 — Port C bit 5 |
| Chân 29 | RC6 — Port C bit 6 |
| Chân 30 | RC7 — Port C bit 7 |
| Chân 31 | RD0 — Port D bit 0 |
| Chân 32 | RD1 — Port D bit 1 |
| Chân 33 | RD2 — Port D bit 2 |
| Chân 34 | RD3 — Port D bit 3 |
| Chân 35 | RD4 — Port D bit 4 |
| Chân 36 | RD5 — Port D bit 5 |
| Chân 37 | RD6 — Port D bit 6 |
| Chân 38 | RD7 — Port D bit 7 |
| Chân 39 | RE0 — Port E bit 0 |
| Chân 40 | RE1 — Port E bit 1 |
| Chân 41 | RF0 — Port F bit 0 |
| Chân 42 | RF1 — Port F bit 1 |
| Chân 43 | RF2 — Port F bit 2 |
| Chân 44 | RF3 — Port F bit 3 |
| Chân 45 | RF4 — Port F bit 4 |
| Chân 46 | RF5 — Port F bit 5 |
| Chân 47 | RF6 — Port F bit 6 |
| Chân 48 | RF7 — Port F bit 7 |
Ứng dụng tiêu biểu
DSPIC33CH256MP205-I/PT phù hợp cho 6 Áp dụngs: Field-Oriented Control (FOC) of PMSM/BLDC Motors, Digital-Controlled Switched-Mode Power Supplies (SMPS), On-Board EV Charger and DC/DC Converters, Industrial Servo Drives and Robotics, Wireless Charging and Resonant Power Transfer, Functional-Safety Motor Control.
Field-Oriented Control (FOC) of PMSM/BLDC Motors
The DSPIC33CH256MP205-I/PT is purpose-built for FOC motor control because its dual-core topology lets the master core execute the 100 MIPS control loop (Clarke/Park transforms, SVPWM, sensorless observer) while the slave core handles UART/CAN stack or housekeeping without disturbing the control timing. Its high-resolution PWM with 250 ps edge placement enables 50 kHz switching frequencies with sub-percent current ripple, and the 12-bit 3.5 MSPS ADC synchronizes to the PWM for precise current sampling at zero-crossing events. Compared with single-core MCUs, this device eliminates inter-core jitter and removes the need for an external companion MCU.
Được đề xuất
Digital-Controlled Switched-Mode Power Supplies (SMPS)
For telecom and server SMPS, the DSPIC33CH256MP205-I/PT delivers deterministic digital control loops thanks to its 100 MIPS master core running voltage-mode or peak-current-mode control at 100-500 kHz switching frequencies. The 250 ps PWM resolution provides fine duty-cycle adjustment for tight line/load regulation, and the high-speed ADC samples input voltage, output voltage, and inductor current with sub-microsecond latency. The slave core can run PMBus, I2C, or telemetry stacks independently, avoiding disturbances to the hard-real-time control loop.
Được đề xuất
On-Board EV Charger and DC/DC Converters
In automotive on-board chargers (OBC) and HV-to-LV DC/DC converters, the DSPIC33CH256MP205-I/PT runs interleaved PFC and LLC control loops on its master core while the slave handles CAN FD messaging, diagnostics, and functional-safety monitoring. The integrated op-amps and comparators reduce BOM by replacing external current-sense amplifiers, and the dual-core partition lets the safety-certified slave core perform plausibility checks on the master without software coupling. For AEC-Q100 designs, the DSPIC33CH256MP205-E/PT variant provides Grade 1 qualification in the same footprint.
Được đề xuất
Industrial Servo Drives and Robotics
Servo drives and industrial robots benefit from the DSPIC33CH256MP205-I/PT because its dual-core architecture cleanly separates the trajectory planner and EtherCAT/CAN stack on the slave from the current/torque loop on the master, achieving sub-microsecond loop determinism. The 12-bit ADC with 3.5 MSPS plus integrated op-amps supports direct shunt-based current sensing on multiple phases simultaneously, while the 250 ps high-resolution PWM delivers smooth torque at low RPM. Industrial temperature rating (-40C to +85C) and CAN FD connectivity suit factory-floor deployment.
Được đề xuất
Wireless Charging and Resonant Power Transfer
Wireless charging transmitters operating at 100-200 kHz resonant frequencies require precise frequency tracking and dynamic impedance matching, both well-served by the DSPIC33CH256MP205-I/PT. The master core runs the resonant control loop with the high-resolution PWM for soft-switching valley detection, while the slave core manages Qi or proprietary protocol stacks and foreign-object detection (FOD) algorithms. The 32 KB RAM accommodates look-up tables for coil calibration, and the 12-bit ADC captures envelope-detected signals with high fidelity for closed-loop power regulation.
Được đề xuất
Functional-Safety Motor Control
For ISO 26262 or IEC 61508 safety-critical motor control, the DSPIC33CH256MP205-I/PT's dual-core topology lets designers dedicate one core to the safety function (ASIL B/D or SIL 2/3) and the other to non-safety housekeeping, with hardware interlocks between them for cross-checking. The integrated windowed watchdog, CRC, and parity-checked memory support diagnostic coverage requirements. When paired with the DSPIC33CH256MP205-E/PT automotive variant, the design achieves ASIL B readiness in industrial servo and traction motor applications.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33CH256MP205-I/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | DSPIC33CH128MP205-I/PT | DSPIC33CH256MP205-E/PT | DSPIC33CH512MP205-I/PT | DSPIC33CH256MP505-I/PT | DSPIC33CH256MP206-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) - same | 48-pin TQFP (7x7 mm) - same | 48-pin TQFP (7x7 mm) - same | 48-pin TQFP (7x7 mm) - same | 48-pin TQFP (7x7 mm) - same |
| Program Flash | 256 KB | 128 KB | 256 KB | 512 KB | 256 KB | 256 KB |
| RAM | 32 KB | 16 KB | 32 KB | 48 KB | 32 KB | 32 KB |
| Master Core Speed | 200 MHz / 100 MIPS | 200 MHz / 100 MIPS | 200 MHz / 100 MIPS | 200 MHz / 100 MIPS | 200 MHz / 100 MIPS | 200 MHz / 100 MIPS |
| Slave Core Speed | 180 MHz / 90 MIPS | 180 MHz / 90 MIPS | 180 MHz / 90 MIPS | 180 MHz / 90 MIPS | 180 MHz / 90 MIPS | 180 MHz / 90 MIPS |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| AEC-Q100 Automotive | No (industrial grade) | No | Yes (Grade 1) | No | No | No |
Bảo phân biệt quan trọng
- Dual-core DSC architecture on a single die (vsDSPIC33CH128MP205-I/PT)
- Industrial-grade temperature rating with automotive-grade variant available (vsDSPIC33CH256MP205-E/PT)
- 250 ps high-resolution PWM resolution (vsDSPIC33CH256MP206-I/PT)
Ghi chú thiết kế
Estimated: at 200 MHz operation on both cores with all peripherals active, the DSPIC33CH256MP205-I/PT consumes approximately 60-80 mA from VDD (3.3V). Decouple VDD with one 10 uF bulk + one 0.1 uF ceramic per VDD pin pair, and place a 1 uF ceramic close to the VCAP pin to stabilize the internal 1.2V regulator. AVDD must be tied to VDD through a ferrite bead for noise isolation of the ADC reference; otherwise ADC readings will degrade by 1-2 LSB.
The 48-pin TQFP package has theta_JA of approximately 60 C/W (no airflow, JEDEC EIA/JESD51 4-layer test board). At 80 mA worst-case consumption from 3.3V (estimated 264 mW dissipation), the junction temperature rise is roughly 16 C above ambient, which is well within the -40C to +85C industrial range. For high-temperature operation above 70 C ambient, consider a small copper pour under the exposed pad or forced airflow to maintain margin.
Route the high-resolution PWM signals (PWM1H/L through PWM5H/L) on the shortest paths to the gate drivers, keeping them away from ADC analog inputs. Place the 16 MHz or 20 MHz crystal within 5 mm of OSCI/OSCO with grounded guard traces. For dual-core firmware development, dedicate a separate JTAG header or trace-cut for the slave core to enable independent debug, as the master and slave cores have separate programming/debug interfaces.
Critical: do not assume the master and slave cores share RAM freely. The slave core has its own program memory and a smaller RAM region; shared memory must be explicitly defined and protected with hardware semaphores to prevent race conditions. Also, the high-resolution PWM requires the PWM clock source to be enabled via configuration bits before use, otherwise the module appears non-functional with default settings. Always verify VCAP capacitor value (recommended 4.7 uF) to avoid internal regulator instability.
Thông tin tuân thủ
RoHS compliant per Microchip product page. -I suffix denotes industrial temperature grade (-40C to +85C); -E suffix is the AEC-Q100 automotive variant. Halogen-free status not explicitly stated in distributor data.
