DSPIC33CK64MC105T-I/M4 - 16-bit 100MHz DSC 64KB Flash | Microchip
MPN： DSPIC33CK64MC105T-I/M4 ✓ 啟用中DSPIC33CK64MC105T-I/M4 概覽
A digital signal controller combines the computational capability of a DSP with the peripheral integration and control architecture of a microcontroller. Within the power-management hierarchy, the dsPIC33CK family sits in Microchip's 16-bit MCU/DSC portfolio, targeting real-time control loops where deterministic single-cycle MAC and DSP instructions matter, such as motor field-oriented control (FOC) and digital power conversion.
Key features include a 12-bit ADC running at up to 3.5 Msps across 15 channels with simultaneous multi-channel sampling, three integrated operational amplifiers that off-board external analog front ends, one analog comparator, and a 12-bit DAC reference output. Four high-speed PWM modules (4x2 channels) offer 2 ns edge resolution, enabling very high-frequency power stages and precision dead-time control.
Technically, the dsPIC33CK core uses a modified Harvard architecture with an enhanced instruction set including DSP support (single-cycle MAC, barrel shifter), hardware ECC on program Flash, Memory Built-In Self-Test (MBIST) on SRAM, and four DMA channels for low-latency data movement without CPU intervention. The part operates from a 3.0 V to 3.6 V single supply and is rated -40C to +85C for the industrial temperature suffix, with derated 70 MIPS operation up to +150C junction on extended variants per the family data sheet.
Typical applications include brushless DC and PMSM motor FOC drives, power factor correction (PFC) stages, digital SMPS, and sensor fusion in industrial automation. Microchip reference designs such as the MCHV-3 PFC reference design explicitly use the dsPIC33CK64MC105.
Design consideration: because the ADC and PWM clocks derive from internal PLL configuration, validate your oscillator startup and PLL lock settings early; the 2 ns PWM resolution only holds within specified VDD (3.0-3.6 V) and temperature ranges.
This page synthesizes distributor listings, family datasheet parameters, and drop-in alternative analysis not consolidated on the manufacturer product page alone.
直接替換替代品，適用於 DSPIC33CK64MC105T-I/M4 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： DSPIC33CK64MC105T-I/M4 （相同外形與佔位） — 差異在於 Operating Temperature, Package, Core, PWM, Packaging.
DSPIC33CK32MC105-E/M4
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33CK64MC105T-E/M4
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33CK64MC105T-I/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33CK64MC105T-I/M4 最大額定值與電氣特性
| Core | dsPIC33CK (16-bit DSC) |
| Architecture | Modified Harvard, 16-bit |
| 最大時脈頻率 | 100 MHz (100 MIPS) |
| Program Flash Size | 64 KB (with ECC) |
| Data RAM Size | 8 KB |
| 工作電源電壓 | 3 V to 3.6 V |
| ADC Resolution | 12-bit |
| ADC Sampling Rate | 3.5 Msps |
| ADC Channels | 15 |
| On-chip Op Amps | 3 |
| Analog Comparators | 1 |
| DAC Resolution | 12-bit |
| PWM | 4x2 high-speed PWM, 2 ns resolution |
| DMA Channels | 4 |
| 封裝 / 外殼 | UQFN-48 (6x6 mm) |
| 工作溫度 | -40C to +85C (70 MIPS operation to +150C per family data sheet) |
| 安裝方式 | SMD/SMT |
| Packaging | Reel (Tape & Reel) |
| Special Features | ECC Flash, MBIST, PTG (Peripheral Trigger Generator), Functional Safety (FuSa) support |
DSPIC33CK64MC105T-I/M4 uqfn-48 (6x6 mm) 腳位配置指南
DSPIC33CK64MC105T-I/M4（uqfn-48 (6x6 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： DSPIC33CK64MC105T-I/M4.
請參閱 資料表 以查看完整腳位配置。
典型應用
DSPIC33CK64MC105T-I/M4 適用於 6 應用s: PMSM / BLDC Motor Field-Oriented Control, Power Factor Correction (PFC), Digital Switch-Mode Power Supplies (SMPS), Industrial Automation and Sensing Nodes, Evaluating with Curiosity Nano Platform, Sensor Signal Processing and DSP Tasks.
PMSM / BLDC Motor Field-Oriented Control
The DSPIC33CK64MC105T-I/M4 fits sensorless and sensored FOC drives because its 12-bit ADC samples up to 3.5 Msps across 15 channels, allowing phase currents to be captured mid-PWM with minimal latency, while the three on-chip op amps amplify shunt signals without external amplifiers. The 4x2 high-speed PWM with 2 ns edge resolution provides precise complementary outputs with dead-time granularity fine enough for high-frequency inverters. In a typical implementation, the Peripheral Trigger Generator synchronizes ADC sampling to the PWM center, DMA moves results to RAM, and the 100 MHz core executes Clarke/Park transforms and PI loops within one control period. Microchip's MCHV-3 reference design demonstrates exactly this topology using the dsPIC33CK64MC105 PIM.
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Power Factor Correction (PFC)
For single-stage boost PFC, the DSPIC33CK64MC105T-I/M4 provides the deterministic control timing needed to regulate input current shaping at 100 MIPS. The ADC's 3.5 Msps rate supports inner current-loop bandwidths well above audible range, and the external op-amp configuration (demonstrated in Microchip's official mchv3-dspic33ck64mc105-pfc reference design on GitHub) conditions shunt and bus-voltage feedback. The 12-bit DAC supplies a clean ramp or reference for comparator-based cycle-by-cycle current limiting, protecting the MOSFET during transients. Because PWM edges adjust in 2 ns steps, the firmware can trim duty resolution finely at high switching frequencies, minimizing steady-state limit-cycle oscillation on the output bus voltage.
推薦
Digital Switch-Mode Power Supplies (SMPS)
In digital SMPS (buck, boost, LLC), the DSPIC33CK64MC105T-I/M4 replaces analog controllers where programmability and telemetry are required. The 2 ns PWM resolution avoids the duty-cycle quantization that plagues lower-resolution digital controllers at switching frequencies above 200 kHz, and the 12-bit/3.5 Msps ADC closes voltage and current loops with sub-microsecond latency. The single comparator provides hardware over-current protection that acts within the same switching cycle, independent of CPU load, while ECC on program Flash ensures firmware integrity over lifetime in always-on power supplies. Operating from a regulated 3.0-3.6 V rail, it integrates cleanly with the auxiliary bias supplies already present in power conversion designs.
推薦
Industrial Automation and Sensing Nodes
The DSPIC33CK64MC105T-I/M4 serves as the real-time element in factory automation nodes that combine signal conditioning with local control. Its three op amps and 15-channel 12-bit ADC digitize multiple industrial sensors - current transducers, pressure bridges, thermistors - with the DSP instruction set executing filtering (IIR/FIR) and calibration math at 100 MIPS. The Peripheral Trigger Generator sequences sampling autonomously, freeing CPU headroom for communication protocol stacks over UART/SPI/I2C links. The -40C to +85C I-grade rating covers cabinet-free industrial environments, and 64KB of ECC Flash accommodates firmware plus field-updatable parameter storage. The FuSa-oriented memory features (ECC, MBIST) support functional-safety documentation for machinery integration.
推薦
Evaluating with Curiosity Nano Platform
Microchip ships the dsPIC33CK64MC105 Curiosity Nano evaluation kit, which mounts this exact DSC and provides USB debugging without external tools - an ideal starting point before committing the UQFN-48 part to a custom PCB. On this platform, engineers can exercise the 3.5 Msps ADC, the 2 ns-resolution PWM, the op amps, and the 12-bit DAC using MPLAB X and MPLAB Code Configurator. Because the Curiosity Nano board carries the same 100 MHz dsPIC33CK64MC105 die, firmware validated there ports directly to production hardware; only pin-mapping and board-level analog layout require adaptation. This evaluation path shortens time-to-tape for motor control and digital power projects using the DSPIC33CK64MC105T-I/M4.
推薦
Sensor Signal Processing and DSP Tasks
The modified Harvard core with single-cycle MAC, DSP-enhanced instruction set, and barrel shifter makes the DSPIC33CK64MC105T-I/M4 effective for embedded signal processing: digital filtering of vibration data, FFT-based condition monitoring, and control-law computation. Four DMA channels stream ADC conversion results to SRAM without CPU intervention, sustaining continuous 3.5 Msps acquisition while the core runs analysis kernels. The 8KB SRAM supports moderate-length buffers, and 64KB ECC Flash holds both firmware and filter coefficient tables safely. For acoustic or power-quality analysis where deterministic timing matters, the Peripheral Trigger Generator aligns processing windows to external events with hardware precision at up to 100 MIPS.
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推薦產品摘要
工程參考資料，適用於 DSPIC33CK64MC105T-I/M4 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | DSPIC33CK32MC105-E/M4 | DSPIC33CK64MC105T-E/M4 | DSPIC33CK64MC105T-I/PT |
|---|---|---|---|---|
| Package | UQFN-48 (6x6) | UQFN-48 (6x6) - same | UQFN-48 (6x6) - same | TQFP-48 - different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 64 KB (ECC) | 32 KB (ECC) | 64 KB (ECC) | 64 KB (ECC) |
| Data RAM | 8 KB | 8 KB | 8 KB | 8 KB |
| Max Clock / Performance | 100 MHz (100 MIPS) | 100 MHz (100 MIPS; derated at high temp) | 100 MHz (70 MIPS to +150C) | 100 MHz (100 MIPS) |
| Temperature Range | -40C to +85C | Extended (-40C to +150C derated) | Extended (-40C to +150C derated) | -40C to +85C |
| ADC | 12-bit, 3.5 Msps, 15 ch | 12-bit, 3.5 Msps, 15 ch | 12-bit, 3.5 Msps, 15 ch | 12-bit, 3.5 Msps, 15 ch |
| On-chip Op Amps / Comparators | 3 op amps, 1 comparator | 3 op amps, 1 comparator | 3 op amps, 1 comparator | 3 op amps, 1 comparator |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
主要差異化特點
- Double the program Flash in identical footprint (對比DSPIC33CK32MC105-E/M4)
- Extended temperature option with zero hardware change (對比DSPIC33CK64MC105T-E/M4)
- Integrated analog front end (對比Generic 16-bit MCUs (e.g., PIC24F class))
設計說明
Supply the DSPIC33CK64MC105T-I/M4 from a tightly regulated 3.0-3.6 V rail; the ADC accuracy and 2 ns PWM resolution are only specified within this window. Decouple each VDD pin with 100 nF ceramic capacitors placed within 2 mm of the pin, plus one bulk 10 uF capacitor near the device. The exposed pad under the UQFN-48 must be soldered to a solid ground array - it is both the primary ground return and thermal path. Estimated: at 100 MIPS with analog peripherals active, current draw is in the tens-of-mA class, so a 300 mA LDO provides ample margin.
Route shunt-amplifier inputs to the three on-chip op amps as short Kelvin-sense traces directly from the shunt resistor terminals; keep these analog traces away from PWM output lines and gate-driver switching nodes. Place the RC anti-alias filter (e.g., 1 kΩ + 1 nF, estimated corner ~160 kHz) close to the ADC input pins. Star-ground or a single solid ground plane is preferred over partitioned grounds, given the mixed analog/digital pin placement on the UQFN-48.
Verify the ordering suffix before assembly: T = tape & reel, I = -40C to +85C, M4 = UQFN-48 6x6. Mixing up /M4 (UQFN) and /PT (TQFP) devices is a frequent BOM error since both are 48-pin. Also confirm extended-temperature needs early: if ambient exceeds +85C, the I-grade part is out of spec and the E-suffix variant (70 MIPS derate above rated temp per family data sheet) must be used instead - a firmware timing impact, not just a procurement change.
The 100 MHz internal operation plus fast PWM edges (2 ns resolution) produce significant harmonics; keep PWM output stubs short and add series termination (estimated 22-33 Ω) on long gate-driver traces to damp ringing. Configure unused I/O as outputs-low or inputs with pull-downs in firmware to prevent floating-node EMI. Microchip's family reference manual section on high-speed PWM layout is the authoritative guidance for dead-time and edge-placement integrity.
合規資訊
Compliance status was not explicitly stated in the verified distributor data captured for this MPN. As an active Microchip catalog industrial device it is generally shipped lead-free; verify via Microchip's product page Quality/Environmental Data before compliance documentation.
