DSPIC33CK256MP305-I/M7 - 100MHz DSC, 256KB Flash | Microchip
MPN: DSPIC33CK256MP305-I/M7 ✓ Hoạt độngDSPIC33CK256MP305-I/M7 Tóm tắt
A digital signal controller combines the computational power of a digital signal processor (DSP) with the peripheral set and ease of use of a microcontroller (MCU). In the embedded systems hierarchy, the dsPIC33CK sits between general-purpose MCUs and full DSPs, offering fixed-point DSP instructions, fast interrupt handling and deterministic real-time behavior for control loops that must execute in microseconds.
Key features include the 100 MHz dsPIC33C DSC core with DSP-enhanced instruction set, 256KB of dual-panel flash enabling live firmware updates, 64KB of RAM for control buffers, 8 DMA channels for data movement without CPU overhead, 8 serial I/O channels, and 4 external interrupt inputs. The on-chip op amps and 12-bit ADCs reduce external component count in analog signal chains.
Technically, the dsPIC33CK core uses CMOS technology with a 16-bit fixed-point data path. The dual-panel flash architecture allows code execution from one panel while the other is erased or programmed, supporting field upgrades without stopping the control loop. The high-resolution PWM module supports complementary outputs with dead-time insertion, essential for three-phase inverter and power-converter designs.
Typical applications include brushless DC and PMSM motor control, digital power supplies (LLC, totem-pole PFC), solar inverters, and industrial automation control nodes. The integrated op amps buffer shunt-resistor current-sense signals directly into the ADCs, enabling field-oriented control (FOC) with minimal external circuitry.
Design consideration: all VDD and VSS pins must be connected, and any PGECx/PGEDx pair must be used together for ICSP programming; mixing PGEC2 with PGED1 will fail programming.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33CK256MP305-I/M7 — 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 DSPIC33CK256MP305-I/M7 (cùng hình factor và footprint) — khác nhau ở Package, ADC Resolution, Core Architecture, Core Speed, Operating Temperature.
DSPIC33CK256MP305-E/M7
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33CK512MP305-I/M7
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33CK128MP305-I/M7
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33CK64MP305-I/M7
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33CK256MP505-I/M7
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33CK256MP305-I/M7 Tỷ lệ tối đa & tính chất điện
| Core | dsPIC33CK 16-bit DSC core |
| Core Speed | 100 MHz |
| Bề rộng đường dữ liệu | 16 bit |
| Program Memory Size | 256 KB flash (dual panel) |
| RAM Size | 64 KB |
| ADC Resolution | 12 bit |
| Integrated Op Amps | Yes |
| PWM Peripheral | High-resolution PWM |
| DMA Channels | 8 |
| Serial I/O Channels | 8 |
| External Interrupt Inputs | 4 |
| Number Format | Fixed-point |
| Technology | CMOS |
| Hộp | 48-VQFN (6x6 mm) |
| Nhiệt độ hoạt động | -40C to +85C (I grade) |
| Kiểu lắp đặt | Surface Mount |
| Programming Interface | ICSP via PGECx/PGEDx pair |
Cấu hình chân DSPIC33CK256MP305-I/M7
| Chân 1 | MCLR — Master clear reset / programming voltage input |
| Chân 2 | AN0/VREF+ — Analog input 0 / ADC positive voltage reference |
| Chân 3 | AN1/VREF- — Analog input 1 / ADC negative voltage reference |
| Chân 4 | PGED1/AN2 — Programming data 1 / analog input 2 |
| Chân 5 | PGEC1/AN3 — Programming clock 1 / analog input 3 |
| Chân 6 | OSCI/AN4 — Oscillator input / analog input 4 |
| Chân 7 | OSCO/AN5 — Oscillator output / analog input 5 |
| Chân 8 | VSS — Ground reference |
| Chân 9 | VDD — Positive power supply |
| Chân 10 | PWM1L/RA0 — PWM output 1 low / port A bit 0 |
| Chân 11 | PWM1H/RA1 — PWM output 1 high / port A bit 1 |
| Chân 12 | PWM2L/RA2 — PWM output 2 low / port A bit 2 |
| Chân 13 | PWM2H/RA3 — PWM output 2 high / port A bit 3 |
| Chân 14 | PWM3L/RB0 — PWM output 3 low / port B bit 0 |
| Chân 15 | PWM3H/RB1 — PWM output 3 high / port B bit 1 |
| Chân 16 | OPA1OUT/PWM4L — Op amp 1 output / PWM output 4 low |
| Chân 17 | OPA1IN+/PWM4H — Op amp 1 non-inverting input / PWM 4 high |
| Chân 18 | OPA1IN-/RB2 — Op amp 1 inverting input / port B bit 2 |
| Chân 19 | OPA2OUT/PWM5L — Op amp 2 output / PWM 5 low |
| Chân 20 | OPA2IN+/PWM5H — Op amp 2 non-inverting input / PWM 5 high |
| Chân 21 | OPA2IN-/RB3 — Op amp 2 inverting input / port B bit 3 |
| Chân 22 | OPA3OUT/PWM6L — Op amp 3 output / PWM 6 low |
| Chân 23 | OPA3IN+/PWM6H — Op amp 3 non-inverting input / PWM 6 high |
| Chân 24 | OPA3IN-/RB4 — Op amp 3 inverting input / port B bit 4 |
| Chân 25 | VSS — Ground reference |
| Chân 26 | VDD — Positive power supply |
| Chân 27 | AN6/RB5 — Analog input 6 / port B bit 5 |
| Chân 28 | AN7/RB6 — Analog input 7 / port B bit 6 |
| Chân 29 | AN8/RB7 — Analog input 8 / port B bit 7 |
| Chân 30 | AN9/RB8 — Analog input 9 / port B bit 8 |
| Chân 31 | AN10/RB9 — Analog input 10 / port B bit 9 |
| Chân 32 | AN11/RB10 — Analog input 11 / port B bit 10 |
| Chân 33 | AN12/RB11 — Analog input 12 / port B bit 11 |
| Chân 34 | SOSCI/AN13 — Secondary oscillator input / analog input 13 |
| Chân 35 | SOSCO/AN14 — Secondary oscillator output / analog input 14 |
| Chân 36 | AN15/RB15 — Analog input 15 / port B bit 15 |
| Chân 37 | U1TX/RP1 — UART 1 transmit (remappable) / port pin |
| Chân 38 | U1RX/RP2 — UART 1 receive (remappable) / port pin |
| Chân 39 | SCK1/RP3 — SPI 1 clock (remappable) / port pin |
| Chân 40 | SDI1/RP4 — SPI 1 data in (remappable) / port pin |
| Chân 41 | SDO1/RP5 — SPI 1 data out (remappable) / port pin |
| Chân 42 | SCL1/RP6 — I2C 1 clock (remappable) / port pin |
| Chân 43 | SDA1/RP7 — I2C 1 data (remappable) / port pin |
| Chân 44 | PGED2/RP8 — Programming data 2 (remappable) / port pin |
| Chân 45 | PGEC2/RP9 — Programming clock 2 (remappable) / port pin |
| Chân 46 | INT0/RC0 — External interrupt 0 / port C bit 0 |
| Chân 47 | RC1 — General purpose I/O, port C bit 1 |
| Chân 48 | RC2 — General purpose I/O, port C bit 2 |
Ứng dụng tiêu biểu
DSPIC33CK256MP305-I/M7 phù hợp cho 6 Áp dụngs: Brushless DC / PMSM Motor Control, Digital Power Supplies (LLC / Totem-Pole PFC), Industrial Automation and Motion Control Nodes, Solar Inverters and Renewable Energy Converters, Battery Management and Charging Systems, Consumer Appliances and E-mobility.
Brushless DC / PMSM Motor Control
The DSPIC33CK256MP305-I/M7 is purpose-built for field-oriented control (FOC) of BLDC and PMSM motors. Its 100 MHz DSP core executes current-loop control in a few microseconds, while the high-resolution PWM module generates complementary outputs with dead-time insertion for three-phase inverters. The integrated op amps amplify shunt-resistor current signals and feed the 12-bit ADCs directly, eliminating external amplifiers. The 64KB RAM holds multiple control history buffers, and 8 DMA channels move ADC results without CPU intervention. Firmware can be updated live thanks to dual-panel flash - the drive keeps running during reprogramming, a decisive benefit for motor drives in continuous-duty industrial equipment.
Được đề xuất
Digital Power Supplies (LLC / Totem-Pole PFC)
In digital power conversion, the dsPIC33CK256MP305 delivers the fast deterministic control loops demanded by LLC resonant converters and totem-pole PFC stages. The high-resolution PWM provides sub-nanosecond duty-cycle resolution for tight regulation at high switching frequencies, while the fast 12-bit ADC samples output voltage and inductor current per switching cycle. The 100 MHz core runs voltage-mode or current-mode compensation loops in firmware, replacing analog compensation networks. Its 8 serial I/O channels and 4 external interrupt sources allow PMBus-style communication and fast fault shutdown. Dual-panel flash supports firmware updates in deployed power systems without interrupting the output rail.
Được đề xuất
Industrial Automation and Motion Control Nodes
Factory automation systems use the dsPIC33CK256MP305 as a smart actuator and motion controller node. The 100 MHz core with DSP instructions runs PID position and velocity loops, while 8 serial I/O channels interface with encoders, displays and supervisory PLCs. The 4 external interrupt inputs provide fast limit-switch and fault response. The industrial -40C to +85C temperature grade (I suffix) suits unconditioned factory-floor enclosures. With 256KB flash and 64KB RAM, one controller can hold multiple motion profiles plus communication stacks. Integrated op amps and 12-bit ADCs condition analog position feedback, and 8 DMA channels keep the serial links serviced with minimal CPU load.
Được đề xuất
Solar Inverters and Renewable Energy Converters
Grid-tied solar micro-inverters and MPPT converters benefit from the dsPIC33CK256MP305's combination of high-resolution PWM and fast analog acquisition. The 12-bit ADCs with DMA continuously sample PV voltage and current for maximum power point tracking, while the PWM module drives the power stage with fine duty-cycle resolution needed for efficiency optimization. The fixed-point DSP instruction set accelerates MPPT algorithm math. The 100 MHz core executes MPPT and grid-synchronization loops simultaneously, and the dual-panel flash allows firmware field updates in rooftop installations where physical access is costly. The 48-pin VQFN 6x6 mm package fits the compact thermal footprint of micro-inverter boards.
Được đề xuất
Battery Management and Charging Systems
Battery chargers and battery-management front ends use the dsPIC33CK256MP305 for precise current and voltage regulation. The 12-bit ADCs and integrated op amps measure cell current via shunt resistors with minimal offset error, while high-resolution PWM controls synchronous buck charging stages with accurate dead time for high efficiency. The 100 MHz core runs charging state machines and coulomb-counting algorithms concurrently, with 64KB RAM retaining state across fast transients. Multiple serial channels communicate pack status to a host over UART, SPI or I2C, and external interrupts handle over-current protection events with deterministic latency. The industrial temperature grade covers automotive-adjacent charging environments.
Được đề xuất
Consumer Appliances and E-mobility
Appliance blowers, pumps, e-bike drives, and drone ESCs adopt the dsPIC33CK256MP305 for compact, sensorless FOC drives. The 48-pin VQFN 6x6 mm surface-mount package suits dense power boards, while the 100 MHz core handles sensorless rotor-position estimation (sliding-mode or flux observers) in real time. Integrated op amps reduce bill-of-material cost in high-volume appliances, and 8 DMA channels offload ADC and serial traffic during multi-axis operation. Dual-panel flash enables field firmware updates in deployed e-mobility products. With 256KB flash, the controller stores multiple drive profiles for variable-speed appliance operation, and the -40C to +85C rating covers outdoor and garage-mounted equipment.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33CK256MP305-I/M7 — 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 | DSPIC33CK256MP305-E/M7 | DSPIC33CK512MP305-I/M7 | DSPIC33CK128MP305-I/M7 | DSPIC33CK64MP305-I/M7 | DSPIC33CK256MP505-I/M7 |
|---|---|---|---|---|---|---|
| Package | 48-VQFN (6x6 mm) | 48-VQFN (6x6 mm) - same | 48-VQFN (6x6 mm) - same | 48-VQFN (6x6 mm) - same | 48-VQFN (6x6 mm) - same | 48-VQFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 256 KB (dual panel) | 256 KB (dual panel) | 512 KB (dual panel) | 128 KB | 64 KB | 256 KB (dual panel) |
| Operating Temperature | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| CAN FD Interface | No | No | No | No | No | Yes (CAN FD) |
| Integrated Op Amps / 12-bit ADC | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes |
Bảo phân biệt quan trọng
- Extended temperature grade availability (vsDSPIC33CK256MP305-E/M7)
- Double the program memory on same footprint (vsDSPIC33CK128MP305-I/M7)
- Lower cost than CAN-FD sibling (vsDSPIC33CK256MP505-I/M7)
Ghi chú thiết kế
Connect every VDD and VSS pin pair. Per Microchip's dsPIC33CK documentation, omitting any VDD/VSS pin - even one - can cause ICSP programming to fail. Place a 100 nF ceramic decoupling capacitor at each VDD pin, as close to the pin as possible, plus at least one bulk 4.7-10 uF capacitor near the supply entry. The exposed pad under the 48-VQFN should be soldered to a grounded copper pour for thermal relief and signal-integrity grounds.
ICSP programming requires a matched PGECx/PGEDx pair: if PGEC2 carries ICSPCLK, then PGED2 must carry ICSPDAT. Mixing PGEC2 with PGED1 will fail. Additionally, ensure the PGED/PGEC pins chosen are not burdened with heavy loads (e.g., LED drivers or long traces) during programming. Reserve the pair with a series resistor and connector footprint in production boards for in-system firmware updates using PICkit 4 or ICD 4.
The PWM outputs driving power MOSFET gates toggle with fast edges that can couple into the 12-bit ADC inputs. Route analog traces (ANx, op-amp pins) on a quiet region of the board, use a solid ground plane under them, and keep the high-current gate loops physically separated from the current-sense shunt routing. Configure the ADC to sample during PWM off-time (trigger synchronized to the PWM module) to avoid switching-noise aliasing in the current-loop feedback.
Thông tin tuân thủ
Compliance details were not present in the provided verified web data; consult the Microchip product page environmental datasheet for current RoHS/REACH status.
