DSPIC33CK256MP205-E/M4 - 100MHz 16-bit DSC 256KB Flash | Microchip
MPN: DSPIC33CK256MP205-E/M4 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.37 | $2.37 |
| 10 | $2.25 | $22.50 |
| 100 | $2.1 | $210.00 |
| 500 | $1.98 | $990.00 |
| 1,000 | $1.87 | $1,870.00 |
DSPIC33CK256MP205-E/M4 Overview
A digital signal controller combines the compute throughput of a DSP with the deterministic control, peripherals and interrupt architecture of a microcontroller. Within the power-management hierarchy, a DSC sits between a general-purpose MCU and a dedicated DSP, making it the preferred controller class for closed-loop power conversion and motor-control systems that need both fast math and rich on-chip analog.
Key features include an on-chip 3-op-amp array (configurable as PGA or standalone op-amps), three analog comparators, a 12-bit ADC with up to 3.5 Msps sampling, high-resolution PWM with 250 ps effective resolution for power conversion, CAN Flexible Data (CAN FD) for automotive and industrial networking, and a Peripheral Trigger Generator (PTG) for autonomous peripheral sequencing. Flash ECC and dual-partition Live Update support functional-safety (FuSa) designs.
Architecturally, the dsPIC33CK core uses a modified Harvard architecture with a 24-bit instruction word, DSP multiply-accumulate (MAC) instructions, and hardware loop support, letting filtering and transform kernels execute at one instruction per cycle at 100 MIPS.
Typical applications include digital power supplies (LLC, totem-pole PFC), PMSM/BLDC/ACIM motor control, automotive and industrial CAN FD nodes, and advanced sensing with onboard analog signal conditioning.
Design consideration: at 150C ambient operation (the -E extended temperature suffix), verify the UQFN thermal pad PCB copper area so junction temperature stays within limits under full MIPS load.
This page adds value beyond the datasheet: distributor pricing trends, drop-in same-package alternatives, comparison tables, and practical design notes synthesized from multiple verified sources.
Drop-in alternatives for DSPIC33CK256MP205-E/M4 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DSPIC33CK256MP205-E/M4 (same form factor and footprint) — differing in Operating Temperature, Package, ADC, Qualification.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK256MP505-E/M4
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$3.75 / Unit
View Datasheet →DSPIC33CH256MP205T-I/M4
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
DSPIC33CH512MP205T-I/M4
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$5.07 / Unit
View Datasheet →DSPIC33CK128MP505-E/M4
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
DSPIC33CK256MP205-E/M4 Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC |
| Core Speed | 100 MHz (up to 100 MIPS) |
| Program Memory Size | 256 KB Flash with ECC |
| Program Memory Type | Dual-partition Flash (Live Update) |
| Data SRAM | 24 KB with MBIST |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +150C (E grade) |
| Package | 48-UQFN (6x6 mm), exposed pad |
| On-chip Op-Amps | 3 |
| Analog Comparators | 3 |
| ADC | 12-bit, high-speed (up to 3.5 Msps) |
| PWM | High-Resolution PWM (250 ps) |
| CAN | CAN Flexible Data (CAN FD) |
| Peripherals | PTG, DMA, peripheral pin select |
| Architecture | Modified Harvard, single-core |
| Qualification | AEC-Q100, Functional Safety (FuSa) supported |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
DSPIC33CK256MP205-E/M4 48-uqfn (6x6 mm), exposed pad Pin Configuration Guide
Pin configuration for DSPIC33CK256MP205-E/M4 (48-uqfn (6x6 mm), exposed pad package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33CK256MP205-E/M4.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK256MP205-E/M4 is suitable for 6 applications: Digital Power Supplies, BLDC/PMSM Motor Control, Automotive CAN FD Nodes, Advanced Sensing and Signal Conditioning, Industrial Automation and Control, Functional Safety Systems.
Digital Power Supplies
The DSPIC33CK256MP205-E/M4 fits digital power conversion because its 250 ps high-resolution PWM resolves the sub-nanosecond duty steps needed by LLC resonant and totem-pole PFC stages, while the 12-bit high-speed ADC samples current and voltage synchronously with the PWM period. The 100 MHz core executes compensation loops at hundreds of kHz, well above the control bandwidth of typical 100 kHz-1 MHz converters. Placed as the main controller between the feedback dividers and gate drivers, it replaces analog control ICs while adding programmability, telemetry, and CAN FD or UART reporting. The on-chip op-amps can condition shunt-current signals, saving external amplifier stages and board area in compact AC-DC and DC-DC designs.
Recommended
BLDC/PMSM Motor Control
For motor drives, the DSPIC33CK256MP205-E/M4 provides field-oriented control (FOC) capability at 100 MIPS, with DSP MAC instructions accelerating Clarke/Park transforms and PI loops. The three on-chip op-amps amplify low-side shunt currents from the inverter legs, and the three comparators with programmable reference implement hardware overcurrent trip and zero-crossing detection without CPU latency. The high-resolution PWM generates precise dead times for the MOSFET bridge, minimizing switching losses and audible noise. Used as the single control chip between current sensors and the six PWM outputs, it supports sensorless and encoder-based schemes, while CAN FD enables integration into industrial and automotive drive networks requiring real-time speed and torque commands.
Recommended
Automotive CAN FD Nodes
The DSPIC33CK256MP205-E/M4 suits automotive nodes through its integrated CAN Flexible Data (CAN FD) controller supporting up to 8 Mbit/s data phases, its AEC-Q100 qualification path, and functional-safety features including ECC Flash and MBIST. The extended -40C to +150C operating range covers under-hood and in-transmission mounting locations where standard 125C parts margin out. As the node controller, it sits between the CAN transceiver and local actuator/sensor circuits, using its high-resolution PWM for actuator drive (valves, pumps, dampers) and the 12-bit ADC for diagnostic monitoring. Dual-partition Live Update allows firmware field upgrades with rollback, reducing recall risk in deployed fleets.
Recommended
Advanced Sensing and Signal Conditioning
The three on-chip op-amps of the DSPIC33CK256MP205-E/M4 can be configured as standalone amplifiers or programmable-gain stages feeding the 12-bit high-speed ADC, creating a compact analog front end for strain gauges, thermocouples, pressure bridges, and current sensors. The 3.5 Msps-class sampling supports dynamic measurements such as vibration and acoustic analysis, while the DSP core applies digital filtering in real time. The Peripheral Trigger Generator sequences ADC conversions and op-amp gain changes autonomously, freeing CPU cycles for data processing. This single-chip signal-chain integration reduces component count, board area, and gain-matching errors versus discrete amplifier-plus-MCU designs, particularly in multi-channel industrial sensing modules.
Recommended
Industrial Automation and Control
In factory automation, the DSPIC33CK256MP205-E/M4 acts as a deterministic control node combining 100 MIPS processing, multiple UART/SPI/I2C ports through peripheral pin select, and CAN FD for integration with PLC backbones. The high-resolution PWM drives heater banks, solenoids, and small inverters, while the 12-bit ADC handles analog sensor arrays; comparators provide fast hardware protection limits. The 256 KB Flash with ECC stores protocol stacks plus OTA-update bootloaders, and dual-partition Live Update enables firmware upgrades during brief maintenance windows. Typical deployments include conveyor sub-controllers, lighting and HVAC actuator nodes, and test-fixture controllers where the -E temperature grade adds margin in hot electrical cabinets.
Recommended
Functional Safety Systems
For safety-oriented designs, the DSPIC33CK256MP205-E/M4 provides hardware building blocks aligned with Microchip's functional safety (FuSa) support: ECC on the 256 KB program Flash detects and corrects single-bit memory faults, memory built-in self-test (MBIST) covers the 24 KB SRAM at startup and runtime, and clock monitoring plus watchdog resources guard against timing failures. These features reduce external diagnostic circuitry in systems such as medical dosing, industrial interlocks, and automotive assist functions. The dual-partition Flash supports safe-image rollback if an update fails validation. Combined with the extended temperature range, the device serves as a compact safety controller that keeps diagnostic overhead within its 100 MIPS budget.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK256MP205-E/M4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK256MP505-E/M4 | DSPIC33CH256MP205T-I/M4 | DSPIC33CK128MP505-E/M4 |
|---|---|---|---|---|
| Package | 48-UQFN (6x6 mm) | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Speed | Single-core 16-bit, 100 MHz / 100 MIPS | Single-core, 100 MHz / 100 MIPS | Dual-core, 100+100 MIPS | Single-core, 100 MHz / 100 MIPS |
| Program Flash | 256 KB ECC | 256 KB ECC | 256 KB ECC | 128 KB ECC |
| Data SRAM | 24 KB | 24 KB | 24 KB | 16 KB |
| CAN Instances | 1x CAN FD | 2x CAN FD | 2x CAN FD | 2x CAN FD |
| Operating Temperature | -40C to +150C (E grade) | -40C to +150C (E suffix) | -40C to +125C (I grade) | -40C to +150C (E suffix) |
| High-Resolution PWM | Yes (250 ps) | Yes (250 ps) | Yes (on slave core domain) | Yes (250 ps) |
Key Differentiators
- Extended 150C ambient rating for hot environments (vs DSPIC33CH256MP205T-I/M4)
- Deterministic single-core control latency (vs DSPIC33CH256MP205T-I/M4)
- 3.5 Msps-class ADC with 250 ps high-resolution PWM on one chip (vs DSPIC33CK128MP505-E/M4)
Design Notes
The -E suffix extends ambient rating to +150C, but the 48-UQFN (6x6 mm) exposed pad is the only practical heat-removal path. Estimated: at 3.3 V and an average ~50 mA active current (roughly 165 mW plus I/O and PWM gate-drive power), junction rise over ambient depends on the PCB theta-JA, which is dominated by via count under the pad. Use a solid ground plane with at least a 5x5 via array under the exposed pad; verify final junction temperature with your board's measured theta-JA before releasing the layout for 150C environments.
Decouple each VDD pin with 100 nF ceramics placed within 2 mm of the pin, plus bulk 4.7-10 uF near the supply entry. Connect the exposed thermal pad to a low-impedance ground plane - it is both the thermal path and a return reference for the analog front end. Keep the three on-chip op-amp inputs routed as short Kelvin traces to shunt resistors, and separate analog ground returns from PWM gate-driver current paths to protect the 12-bit ADC from switching noise.
Programming uses ICSP via PGECx/PGEDx pairs: per Microchip documentation, ICSPCLK and ICSPDAT must come from the same pair (e.g., PGEC2 with PGED2); mixing pairs prevents connection. Reserve the programming pair on a header even in production boards. Also remember most digital pins are remappable via Peripheral Pin Select - lock the PPS configuration in firmware before layout finalization so pin assignments match code, and never route critical PWM outputs through remappable pins changed at runtime.
Compliance Information
RoHS compliance and AEC-Q100 qualification indicated by distributor listings (Hotenda: Automotive, AEC-Q100, dsPIC33CK series). REACH, halogen-free, and conflict-minerals declarations should be obtained from Microchip's material declaration certificates.
