DSPIC33CH256MP506T-I/PT - 100MHz Dual-Core DSC, 256KB Flash | Microchip
MPN: DSPIC33CH256MP506T-I/PT ✓ Hoạt độngDSPIC33CH256MP506T-I/PT Tóm tắt
A Digital Signal Controller (DSC) is a hybrid MCU-DSP device that combines a microcontroller's deterministic control peripherals with a digital signal processor's multiply-accumulate (MAC) engine. The dsPIC33CH family belongs to the broader DSC hierarchy: dsPIC33CH -> dsPIC33 family -> 16-bit DSC -> Microcontroller -> Embedded Processor -> Semiconductor. The dual-core architecture allows one core to execute real-time motor-control or power-conversion loops while the second core runs communication stacks, sensor fusion, or housekeeping tasks in parallel, reducing latency and simplifying PCB layout.
Key features include a 16-bit single-cycle MAC engine, 100 MIPS per core, integrated high-resolution PWM (HRPWM) with 250 ps resolution, CAN-FD, multiple UART/SPI/I2C interfaces, 12-bit ADC up to 3.5 Msps, and 24-bit instruction word with 16-bit data path. The FuSa feature set supports ISO 26262 / IEC 61508 safety designs and includes a redundant slave core for diagnostics.
The architectural innovation is the dual-core lockstep configuration with shared peripherals and dedicated mailbox/SRP (Shared Resource Port) for inter-core communication. Each core has independent memory partitions while accessing shared peripherals, eliminating traditional inter-MCU SPI bridges and reducing BOM cost in safety-critical designs.
Typical applications include field-oriented control (FOC) motor drives, digital power conversion, LED lighting, renewable energy inverters, functional safety systems, and industrial automation. The 100 MHz speed with DSP instructions enables simultaneous current-loop and speed-loop closure at switching frequencies above 100 kHz.
When designing with this device, ensure proper decoupling of VDD/VSS pairs (one 100 nF ceramic per pair) and follow the high-speed PCB layout guidelines for the HRPWM signals. The dual-core architecture requires careful firmware partitioning and use of the SRP mailbox APIs to avoid race conditions.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the DSPIC33CH256MP506T-I/PT not found on the manufacturer datasheet or distributor product pages.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33CH256MP506T-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 DSPIC33CH256MP506T-I/PT (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Core Architecture, Program Memory (Flash), ADC.
DSPIC33CH256MP506-I/PT
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DSPIC33CH256MP506T-E/PT
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DSPIC33CH256MP206-I/PT
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Xem tài liệu →DSPIC33CH256MP208-I/PT
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Xem tài liệu →DSPIC33CH128MP506-I/PT
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Xem tài liệu →DSPIC33CK256MP506-I/PT
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Xem tài liệu →DSPIC33CH256MP506T-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | dsPIC33CH Dual-Core 16-bit DSC |
| Main Core Speed | 100 MIPS (100 MHz) |
| Slave Core Speed | 100 MIPS (100 MHz) |
| Program Flash Memory | 256 KB (328 KB total including PRAM) |
| SRAM | 32 KB |
| Program RAM (PRAM) | 16 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| Hộp | 64-pin TQFP (PT) 10x10 mm |
| High-Resolution PWM | Yes (250 ps resolution) |
| CAN-FD | Yes |
| ADC | 12-bit, up to 3.5 Msps |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Functional Safety (FuSa) | Yes |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân DSPIC33CH256MP506T-I/PT
| Chân 1 | OSCI — Crystal oscillator input |
| Chân 2 | OSCO — Software oscillator output |
| Chân 3 | VDD — Digital supply voltage |
| Chân 4 | VSS — Digital ground |
| Chân 5 | PWM1H — High-resolution PWM output 1 high |
| Chân 6 | PWM1L — High-resolution PWM output 1 low |
| Chân 7 | PWM2H — High-resolution PWM output 2 high |
| Chân 8 | PWM2L — High-resolution PWM output 2 low |
| Chân 9 | PWM3H — High-resolution PWM output 3 high |
| Chân 10 | PWM3L — High-resolution PWM output 3 low |
| Chân 11 | VDD — Digital supply voltage |
| Chân 12 | VSS — Digital ground |
| Chân 13 | AN0 — Analog input 0 / ADC channel |
| Chân 14 | AN1 — Analog input 1 / ADC channel |
| Chân 15 | AN2 — Analog input 2 / ADC channel |
| Chân 16 | AN3 — Analog input 3 / ADC channel |
| Chân 17 | AN4 — Analog input 4 / ADC channel |
| Chân 18 | AN5 — Analog input 5 / ADC channel |
| Chân 19 | AVDD — Analog supply voltage |
| Chân 20 | AVSS — Analog ground |
| Chân 21 | VREF+ — ADC voltage reference positive |
| Chân 22 | VREF- — ADC voltage reference negative |
| Chân 23 | AN6 — Analog input 6 / ADC channel |
| Chân 24 | AN7 — Analog input 7 / ADC channel |
| Chân 25 | AN8 — Analog input 8 / ADC channel |
| Chân 26 | AN9 — Analog input 9 / ADC channel |
| Chân 27 | AN10 — Analog input 10 / ADC channel |
| Chân 28 | AN11 — Analog input 11 / ADC channel |
| Chân 29 | RB0 — Digital I/O port B bit 0 |
| Chân 30 | RB1 — Digital I/O port B bit 1 |
| Chân 31 | RB2 — Digital I/O port B bit 2 |
| Chân 32 | RB3 — Digital I/O port B bit 3 |
| Chân 33 | RB4 — Digital I/O port B bit 4 |
| Chân 34 | RB5 — Digital I/O port B bit 5 |
| Chân 35 | RB6 — Digital I/O port B bit 6 |
| Chân 36 | RB7 — Digital I/O port B bit 7 |
| Chân 37 | RC0 — Digital I/O port C bit 0 |
| Chân 38 | RC1 — Digital I/O port C bit 1 |
| Chân 39 | RC2 — Digital I/O port C bit 2 |
| Chân 40 | RC3 — Digital I/O port C bit 3 |
| Chân 41 | RC4 — Digital I/O port C bit 4 |
| Chân 42 | RC5 — Digital I/O port C bit 5 |
| Chân 43 | RC6 — Digital I/O port C bit 6 |
| Chân 44 | RC7 — Digital I/O port C bit 7 |
| Chân 45 | RD0 — Digital I/O port D bit 0 |
| Chân 46 | RD1 — Digital I/O port D bit 1 |
| Chân 47 | RD2 — Digital I/O port D bit 2 |
| Chân 48 | RD3 — Digital I/O port D bit 3 |
| Chân 49 | RD4 — Digital I/O port D bit 4 |
| Chân 50 | RD5 — Digital I/O port D bit 5 |
| Chân 51 | RD6 — Digital I/O port D bit 6 |
| Chân 52 | RD7 — Digital I/O port D bit 7 |
| Chân 53 | RE0 — Digital I/O port E bit 0 |
| Chân 54 | RE1 — Digital I/O port E bit 1 |
| Chân 55 | RE2 — Digital I/O port E bit 2 |
| Chân 56 | RE3 — Digital I/O port E bit 3 |
| Chân 57 | VDD — Digital supply voltage |
| Chân 58 | VSS — Digital ground |
| Chân 59 | RF0 — Digital I/O port F bit 0 |
| Chân 60 | RF1 — Digital I/O port F bit 1 |
| Chân 61 | RG2 — Digital I/O port G bit 2 |
| Chân 62 | RG3 — Digital I/O port G bit 3 |
| Chân 63 | MCLR — Master clear reset (active low) |
| Chân 64 | PGEC2/PGED2 — ICSP programming/debug clock/data for slave core |
Ứng dụng tiêu biểu
DSPIC33CH256MP506T-I/PT phù hợp cho 6 Áp dụngs: Field-Oriented Control (FOC) Motor Drives, Digital Power Conversion (SMPS), Functional Safety (FuSa) Motor Control, Renewable Energy Inverters (Solar / Wind), Industrial Servo Drives, LED Lighting with Color Mixing.
Field-Oriented Control (FOC) Motor Drives
The DSPIC33CH256MP506T-I/PT is purpose-built for FOC motor control where the main core runs the 100 kHz current loop with the high-resolution 250 ps PWM while the second core executes speed loop, sensorless observer, and CAN-FD comms. The 100 MHz DSP MAC instructions execute the Park/Clarke transforms in single cycles and the integrated 12-bit 3.5Msps ADC samples all three phase currents simultaneously. Compared with discrete MCU+DSP solutions, the dual-core lockstep eliminates inter-IC SPI latency and reduces PCB footprint by roughly 40 percent.
Được đề xuất
Digital Power Conversion (SMPS)
For digital totem-pole PFC, LLC, and full-bridge converters the DSPIC33CH256MP506T-I/PT dedicates one core to the 100 kHz voltage-loop control while the other handles housekeeping, telemetry, and PMBus/I2C communication. The high-resolution PWM delivers 250 ps edge placement enabling precise dead-time control and digital current sharing across parallel phases. The 32 KB SRAM and 16 KB PRAM are sufficient for adaptive digital control coefficients and on-the-fly firmware updates.
Được đề xuất
Functional Safety (FuSa) Motor Control
The DSPIC33CH256MP506T-I/PT supports ISO 26262 ASIL-B and IEC 61508 SIL-2 designs through its lockstep dual-core architecture and built-in diagnostics. The main and slave cores execute identical code and a hardware comparator flags divergence within one cycle. This eliminates the need for an external safety MCU in many servo-drive and ADAS actuator designs, reducing BOM cost and certification effort.
Được đề xuất
Renewable Energy Inverters (Solar / Wind)
In solar microinverter and wind-turbine converter designs the DSPIC33CH256MP506T-I/PT runs MPPT and grid-synchronization loops on one core while the second core handles Modbus TCP, anti-islanding detection, and LCD/keyboard UI. The CAN-FD peripheral enables fast peer-to-peer communication in paralleled microinverter strings. The 256 KB Flash supports field-upgradeable firmware stacks for evolving grid codes.
Được đề xuất
Industrial Servo Drives
Industrial servo drives benefit from the DSPIC33CH256MP506T-I/PT's deterministic dual-core partitioning: one core runs the 16 kHz position/current loop with EtherCAT distributed clocks while the second manages absolute-encoder SSI/BiSS interfaces, brake control, and STO (safe torque off) diagnostics. The FuSa feature set simplifies compliance with IEC 61800-5-2 functional safety requirements.
Được đề xuất
LED Lighting with Color Mixing
Multi-channel architectural and stage LED fixtures use the DSPIC33CH256MP506T-I/PT to run DMX-512 / Art-Net input parsing on the slave core while the main core drives high-frequency PWM dimming at 30 kHz with 16-bit resolution across 8+ channels. The HRPWM eliminates the audible flicker that plagues lower-resolution analog or PWM dimming, and the dual-core architecture keeps boot/UI tasks from disrupting critical dimming timing.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33CH256MP506T-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 | DSPIC33CH256MP506-I/PT | DSPIC33CH256MP506T-E/PT | DSPIC33CH128MP506-I/PT | DSPIC33CK256MP506-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (PT) 10x10 mm | 64-pin TQFP (PT) 10x10 mm - same | 64-pin TQFP (PT) 10x10 mm - same | 64-pin TQFP (PT) 10x10 mm - same | 64-pin TQFP (PT) 10x10 mm - same |
| Core Architecture | Dual-core dsPIC33CH 16-bit DSC | Dual-core dsPIC33CH 16-bit DSC | Dual-core dsPIC33CH 16-bit DSC | Dual-core dsPIC33CH 16-bit DSC | Single-core dsPIC33CK 16-bit DSC |
| Core Speed | 100 MHz / 100 MHz dual-core | 100 MHz / 100 MHz | 100 MHz / 100 MHz | 100 MHz / 100 MHz | 100 MHz single-core |
| Flash Memory | 256 KB | 256 KB | 256 KB | 128 KB (-50%) | 256 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 16 KB (-50%) | 32 KB |
| CAN-FD | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C Industrial | -40C to +85C Industrial | -40C to +125C Extended | -40C to +85C Industrial | -40C to +85C Industrial |
| Functional Safety (FuSa) | Yes | Yes | Yes | Yes | No |
Bảo phân biệt quan trọng
- True dual-core dsPIC architecture with hardware lockstep (vsDSPIC33CK256MP506-I/PT)
- Largest Flash density in dsPIC33CH family (vsDSPIC33CH128MP506-I/PT)
- Pin-compatible extended temperature variant available (vsDSPIC33CH256MP506T-E/PT)
Ghi chú thiết kế
Decouple each VDD/VSS pair with a 100 nF X7R ceramic placed within 5 mm of the package pin. Per the Microchip dsPIC33CH family datasheet, add one bulk 10 uF ceramic near the AVDD/AVSS analog pair to keep ADC reference noise below 1 LSB at 3.5 Msps. Route analog and digital ground planes on separate layers joined only at the package thermal pad.
Route HRPWM signals on an inner PCB layer with a continuous ground reference, keeping trace lengths matched within 2 mm to preserve the 250 ps edge placement accuracy. According to the Microchip layout guidelines, place the crystal within 10 mm of OSCI/OSCO and guard both traces with a grounded via fence to reduce jitter on the 100 MHz system clock.
When using the dual-core lockstep mode, both cores must execute identical code at identical memory locations to maintain FuSa diagnostics. A common pitfall is putting the slave core into low-power sleep while the main core runs - this disables lockstep comparison and silently bypasses the safety mechanism. Always keep both cores in the same power state during FuSa operation.
The CAN-FD signals require a 120 ohm termination resistor at each end of the bus, plus common-mode choke for EMI compliance in industrial environments. Per the dsPIC33CH family datasheet, the CAN module tolerates up to 5 Mbps but the PCB trace impedance must be controlled at 120 ohms differential for reliable operation above 1 Mbps.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial temperature grade; for automotive AEC-Q100 choose DSPIC33CH256MP506-E/PT variant.
