DSPIC33CK128MC102T-I/SS - 16-bit DSC, 128KB Flash, 100MHz | Microchip
MPN: DSPIC33CK128MC102T-I/SS ✓ Hoạt độngDSPIC33CK128MC102T-I/SS Tóm tắt
A Digital Signal Controller combines the computational throughput of a digital signal processor (barrel shifter, DSP multiply-accumulate instructions, circular buffers) with the integrated peripherals and low power modes of a microcontroller, placing it in the hierarchy: DSC -> digital signal processor -> 16-bit MCU -> embedded processor. This makes the dsPIC33CK family particularly suited to real-time control loops executing at high frequency.
Key features include the single 100 MHz dsPIC33CK core with enhanced on-chip peripherals, on-chip operational amplifiers (OpAmps), a 12-bit high-speed ADC, and high-resolution PWM generators - the peripheral set that the Mouser and DigiKey listings highlight for this exact MPN. Four DMA channels offload data movement for ADC and PWM-heavy applications, and the T suffix indicates tape-and-reel packaging for automated assembly.
Architecturally, the dsPIC33CK core executes DSP instructions at the full 100 MHz clock rate, delivering faster control-loop execution than the earlier dsPIC33EP generation. The integrated op-amps condition low-level current-sense signals before the 12-bit ADC samples them, reducing external component count in motor-control designs.
Typical applications include brushless DC (BLDC) and PMSM motor control, digital power conversion (PFC, LLC), industrial automation, and high-performance general-purpose embedded systems.
When designing, budget the 16 KB RAM carefully for control-law state and ADC buffers, since DMA-based sampling consumes memory bandwidth.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33CK128MC102T-I/SS — 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 DSPIC33CK128MC102T-I/SS (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Package, DMA Channels, ADC Resolution, Analog Comparators.
DSPIC33CK128MC102-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33CK128MC102T-E/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33CK128MC102T-H/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33CK64MC102T-I/SS
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33CK128MC103T-I/SS
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33CH128MP202-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33CK128MC102T-I/SS Tỷ lệ tối đa & tính chất điện
| Core | dsPIC33CK 16-bit DSC core |
| Tần số xung maksimum | 100 MHz |
| Program Memory Size | 128 KB (128K x 8) Flash |
| RAM Size | 16 KB |
| ADC Resolution | 12 bit |
| Integrated Peripherals | OpAmps, 12-bit ADC, PWM |
| DMA Channels | 4 |
| Hộp | 28-SSOP (SS) |
| Package Pitch | 0.65 mm |
| Nhiệt độ hoạt động | -40C to +85C |
| Kiểu lắp đặt | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Qualification Grade | Industrial (I suffix, -40C to +85C) |
| Product Family | dsPIC33CK MC |
| Trạng thái RoHS | Compliant |
| Applications | Motor control, digital power, general embedded |
Cấu hình chân DSPIC33CK128MC102T-I/SS
| Chân 1 | MCLR — Master clear reset input |
| Chân 2 | AN0/RA0 — Analog input 0 / port A pin 0 |
| Chân 3 | AN1/RA1 — Analog input 1 / port A pin 1 |
| Chân 4 | AN2/RA2 — Analog input 2 / port A pin 2 |
| Chân 5 | AN3/RA3 — Analog input 3 / port A pin 3 |
| Chân 6 | RA4 — Port A pin 4 |
| Chân 7 | VDD — Positive supply |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSC1 — Oscillator crystal input / external clock |
| Chân 10 | OSC2 — Oscillator crystal output |
| Chân 11 | VCAP — Core regulator capacitor connection |
| Chân 12 | RB0 — Port B pin 0 (AN/PWM/op-amp alternate functions) |
| Chân 13 | RB1 — Port B pin 1 (AN/PWM/op-amp alternate functions) |
| Chân 14 | RB2 — Port B pin 2 (AN/PWM/op-amp alternate functions) |
| Chân 15 | RB3 — Port B pin 3 (AN/PWM alternate functions) |
| Chân 16 | RB4 — Port B pin 4 (PWM/communication alternate functions) |
| Chân 17 | RB5 — Port B pin 5 (PWM/communication alternate functions) |
| Chân 18 | VDD — Positive supply |
| Chân 19 | VSS — Ground reference |
| Chân 20 | RB8 — Port B pin 8 (PWM/communication alternate functions) |
| Chân 21 | RB9 — Port B pin 9 (PWM/communication alternate functions) |
| Chân 22 | RB10 — Port B pin 10 (AN/PWM alternate functions) |
| Chân 23 | RB11 — Port B pin 11 (AN/PWM alternate functions) |
| Chân 24 | RB12 — Port B pin 12 (AN/op-amp alternate functions) |
| Chân 25 | RB13 — Port B pin 13 (AN/op-amp alternate functions) |
| Chân 26 | RB14 — Port B pin 14 (communication alternate functions) |
| Chân 27 | RB15 — Port B pin 15 (communication alternate functions) |
| Chân 28 | VSS — Ground reference |
Ứng dụng tiêu biểu
DSPIC33CK128MC102T-I/SS phù hợp cho 6 Áp dụngs: BLDC/PMSM Motor Control, Digital Power Conversion, Industrial Automation and Control Panels, Sensor Signal Conditioning and Data Acquisition, Consumer Appliance and Power-Tool Control, High-Performance General Embedded Systems.
BLDC/PMSM Motor Control
The DSPIC33CK128MC102T-I/SS fits brushless DC and PMSM motor control because its 100 MHz dsPIC33CK core executes field-oriented-control (FOC) loops fast enough for multi-kHz PWM switching frequencies, while the integrated op-amps condition low-level current-shunt signals directly for the 12-bit ADC - eliminating external amplifier ICs. In a typical implementation, complementary PWM outputs drive a three-phase inverter gate drivers, ADC triggers are synchronized to the PWM period via DMA, and the 16 KB RAM stores PI/PID state variables and Clarke/Park transform constants. The main performance trade-off is memory bandwidth: reserving DMA buffers for three-phase current sampling consumes a meaningful fraction of the 16 KB RAM, so buffer sizing must be planned early in the design.
Được đề xuất
Digital Power Conversion
Digital PFC and LLC converter control is a primary dsPIC33CK use case. The 100 MHz core provides the arithmetic headroom for high-bandwidth voltage/current loops, the high-resolution PWM delivers fine duty-cycle resolution needed for precise regulation at hundreds of kHz switching frequencies, and the 12-bit ADC samples output voltage and inductor current synchronously with the PWM period. The integrated op-amps can amplify shunt signals before ADC conversion, and four DMA channels move sampled data without CPU intervention, keeping loop latency deterministic. Performance consideration: unlike analog controllers, firmware-based control adds a fixed computation delay, so loop tuning should account for the one-to-two PWM-period latency typical of DSP-servo implementations; the fast core here minimizes it.
Được đề xuất
Industrial Automation and Control Panels
In industrial automation nodes, the DSPIC33CK128MC102T-I/SS serves as a real-time controller for actuators, pumps, and servo subsystems operating from -40C to +85C. The DSP capability accelerates filtering (IIR/FIR) of noisy sensor feedback, the 12-bit ADC digitizes multiple analog process variables, and PWM outputs drive heaters, valves, or small motors. The 128 KB Flash accommodates communication stacks and field-upgradable application logic, while the industrial temperature grade and RoHS compliance support standard factory-equipment build requirements. A design consideration is EMI robustness: placing the controller near switching loads requires careful ground-plane partitioning and supply decoupling to keep ADC noise within the converter's resolution limits during heavy load switching.
Được đề xuất
Sensor Signal Conditioning and Data Acquisition
With on-chip op-amps, a 12-bit ADC, and DMA, this DSC forms a compact acquisition front-end for bridges, shunts, and low-level sensor signals. The op-amps provide gain for millivolt-range outputs, the ADC converts at high sample rates, and DMA streams results into RAM continuously without CPU polling - the DSP instructions then run digital filtering and calibration math at 100 MHz. Compared with a discrete amplifier-plus-MCU chain, the integrated path reduces BOM count, board area, and analog routing noise exposure. The trade-off is calibration: integrated op-amp offset and gain errors must be characterized in firmware, and the 12-bit ADC resolution ceiling means systems needing >12 effective bits should add an external delta-sigma converter.
Được đề xuất
Consumer Appliance and Power-Tool Control
Cost- and performance-sensitive appliances - cordless tools, blenders, fans, e-bike controllers - use dsPIC33CK-class DSCs to run sensorless BLDC control with back-EMF or shunt-based feedback. The 128 KB Flash stores speed-profile tables and protection logic; the 12-bit ADC plus op-amps handles bus-voltage and phase-current sensing; and the high-resolution PWM provides quiet, efficient motor drive with audible-noise benefits from high switching frequency. The -40C to +85C range covers most appliance ambients, and tape-and-reel packaging suits high-volume automated assembly. Design note: appliance EMI and surge environments demand robust input protection, snubbers, and careful layout of the PWM-to-gate-driver nets to avoid radiated-emissions compliance failures.
Được đề xuất
High-Performance General Embedded Systems
Beyond control applications, the DSPIC33CK128MC102T-I/SS works as a high-throughput 16-bit general-purpose MCU where 100 MHz execution, 128 KB Flash, and 16 KB RAM outclass classic PIC16/PIC18 parts. Typical roles include protocol bridging, encrypted telemetry, waveform generation, and legacy DSP offload using hardware MAC instructions and the barrel shifter. Four DMA channels accelerate UART/SPI data movement, and low-power modes suit battery-buffered designs. The main selection trade-off versus an ARM Cortex-M MCU is toolchain ecosystem: dsPIC development uses MPLAB X and the XC16 compiler, so teams standardized on Microchip tooling gain the shortest path to production, while ARM-standardized teams may prefer an STM32-class alternative despite similar performance.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33CK128MC102T-I/SS — 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 | DSPIC33CK128MC102-I/SS | DSPIC33CK128MC102T-E/SS | DSPIC33CK128MC102T-H/SS | DSPIC33CH128MP202-I/SS |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Architecture | dsPIC33CK 16-bit, 100 MHz | dsPIC33CK 16-bit, 100 MHz | dsPIC33CK 16-bit, 100 MHz | dsPIC33CK 16-bit, 100 MHz | dsPIC33CH dual-core 16-bit |
| Program Memory | 128 KB Flash | 128 KB Flash | 128 KB Flash | 128 KB Flash | 128 KB Flash |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
Bảo phân biệt quan trọng
- Single-core simplicity with integrated op-amps (vsDSPIC33CH128MP202-I/SS)
- Extended and high-temperature drop-in options (vsDSPIC33CK128MC102T-E/SS and DSPIC33CK128MC102T-H/SS)
- Trade-off: 12-bit ADC ceiling (vsDSPIC33AK128MC102-I/SS)
Ghi chú thiết kế
The dsPIC33CK core is fed by an internal regulator whose VCAP pin requires the exact capacitance specified in the Microchip datasheet (typically a low-ESR ceramic capacitor close to pin 11). Place it within 2-3 mm of the VCAP pin with a solid via to the ground plane; incorrect VCAP decoupling is the most common cause of erratic resets and ADC glitches on this family. Decouple each VDD pair (pins 7 and 18) with a 100 nF ceramic plus a bulk 4.7-10 uF capacitor per rail.
Separate the analog (op-amp/ADC inputs) and power (PWM, gate-driver) ground returns into a single-point star connection under the controller. Route high-slew PWM traces (RB4/RB5, RB8/RB9) away from analog input nets on pins 2-5 and 24-25 to prevent coupling into the 12-bit ADC. On a two-layer board, dedicate the bottom layer as a mostly-continuous ground plane beneath the SSOP-28; on four layers, use an unbroken internal GND plane for best ADC performance.
Do not confuse the temperature-suffix variants when releasing a BOM: the -I/SS is rated to +85C, the -E/SS to +125C, and the -H/SS to +150C; using the -I version in a sealed motor-drive enclosure that exceeds 85C ambient will violate the datasheet absolute maximums even though the footprints are identical. Also verify that MCLR (pin 1) includes a pull-up (4.7-10 kOhm) and series resistor if an external programmer/debugger header is fitted, and reserve a programming header even in production boards.
When sampling shunt currents through the integrated op-amps, synchronize ADC conversion triggers to the PWM period (center-aligned trigger at counter zero or overflow) so sampling lands away from switching-edge noise. Estimated: with 100 MHz core and typical FOC loops at 20-50 kHz PWM, one control iteration consumes 1000-3000 cycles, leaving ample margin; size DMA buffers so two full current-sampling periods fit within the 16 KB RAM to avoid overwriting live data.
Thông tin tuân thủ
RoHS compliant per standard Microchip dsPIC33CK production data; formal REACH/halogen-free/conflict-minerals declarations should be requested from Microchip product compliance documentation.
