DSPIC33CK128MP208-E/PT - 100MHz 16-bit DSC 128KB | Microchip
MPN: DSPIC33CK128MP208-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
DSPIC33CK128MP208-E/PT Overview
A digital signal controller combines the compute throughput of a digital signal processor with the peripheral integration and deterministic control flow of a microcontroller. Within the power-management IC hierarchy, the dsPIC33CK family sits in the 16-bit DSC class and targets closed-loop control systems such as digital power supplies, motor drives, and advanced sensing, where hardware PWM resolution and fast interrupt latency matter more than general-purpose processing.
Key features of this part include the dsPIC33CK core running DC to 100 MIPS from a 3.0 V to 3.6 V supply, high-resolution PWM peripherals suited to switching converters and motor control, CAN Flexible Data (CAN FD) for automotive and industrial networking, and functional-safety (FuSa) support cited by distributors. The extended-temperature (-40C to +150C) E-grade rating and automotive classification distinguish it from standard industrial I-grade variants.
Architecturally, the dsPIC33CK uses a modified Harvard architecture with a single core, DSP-enhanced instruction set, ECC-protected program Flash, and dual-partition live update that allows firmware to be written to one partition while executing from the other - a key feature for field-updatable automotive and industrial systems.
Typical applications include digital power supplies (Totem-Pole PFC, LLC), brushless DC and PMSM motor control, automotive auxiliary systems requiring CAN FD, and high-accuracy digital control loops. The 100 MHz core and high-resolution PWM allow control-loop frequencies well into the hundreds of kilohertz with fine duty-cycle granularity.
Design consideration: the E-grade 150C rating raises PCB assembly and reliability requirements - verify reflow profiles and use extended-temp passives around the MCU.
This page synthesizes distributor listings, family variant comparisons, and drop-in alternative analysis not found in a single datasheet.
Drop-in alternatives for DSPIC33CK128MP208-E/PT — 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 DSPIC33CK128MP208-E/PT (same form factor and footprint) — differing in Core, Package, Operating Temperature, Architecture, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK128MP208-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.58 / Unit
View Datasheet →DSPIC33CK256MP208-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MP208-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.98 / Unit
View Datasheet →DSPIC33CK32MP208-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK128MP208T-I/PT
✅ Drop-In✓ In Stock
$3.75 / Unit
View Datasheet →DSPIC33CK128MP208-E/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC |
| Core Speed | 100 MHz (100 MIPS) |
| Program Memory Size | 128 KB Flash |
| Flash Features | ECC, dual-partition live update |
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +150C (E grade) |
| Package | 80-TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Connectivity | CAN FD, UART, SPI, I2C |
| Special Peripherals | High-Resolution PWM |
| Product Class | Functional Safety (FuSa) DSC, Automotive |
| Architecture | Modified Harvard, single core |
| Packaging | Tray |
| RoHS Status | unknown |
DSPIC33CK128MP208-E/PT 80-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK128MP208-E/PT (80-tqfp (12x12 mm) 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 DSPIC33CK128MP208-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK128MP208-E/PT is suitable for 6 applications: Digital Power Supplies, Motor Control (BLDC/PMSM FOC), Automotive CAN FD Nodes, Advanced Sensing and Control, Server and Telecom Power Shelves, Wireless Charging and LED Drivers.
Digital Power Supplies
The DSPIC33CK128MP208-E/PT is a natural fit for digitally controlled switch-mode power supplies such as Totem-Pole PFC, LLC resonant converters, and bidirectional on-board chargers. The 100 MHz (100 MIPS) dsPIC33CK core executes current- and voltage-loop compensation at switching frequencies in the hundreds of kilohertz, while the high-resolution PWM subsystem supplies fine duty-cycle and phase-shift granularity that reduces output ripple and improves transient response versus coarse PWM peripherals. Placed as the digital supervisor and loop controller, it replaces analog compensators with firmware, enabling adaptive gain scheduling, soft-start profiling, and fault logging. Designers must budget CPU cycles for control math within each PWM period and use the ECC-protected Flash to safeguard firmware integrity in safety-relevant power stages.
Recommended
Motor Control (BLDC/PMSM FOC)
Field-oriented control of brushless DC and permanent-magnet synchronous motors benefits directly from the DSPIC33CK128MP208-E/PT's 100 MHz core, hardware DSP multiply-accumulate instructions, and high-resolution PWM for center-aligned complementary outputs with dead-time control. The part executes current-loop FOC algorithms at 20-100 kHz rates with ample headroom for position estimation and sensorless observers. Its -40C to +150C E-grade rating tolerates the elevated ambient near motor-drive power stages where standard industrial MCUs derate. The CAN FD interface links the drive to vehicle or factory networks for torque commands and diagnostics. Designers should use the remappable pins to group PWM, ADC trigger, and encoder inputs for shortest feedback routing and lowest loop latency.
Recommended
Automotive CAN FD Nodes
Automotive auxiliary electronic control units use the DSPIC33CK128MP208-E/PT for its integrated CAN Flexible Data (CAN FD) peripheral and extended -40C to +150C temperature rating. CAN FD supports 64-byte payloads and faster data-phase bit rates than classical CAN, reducing bus load in telematics, battery-management sensing, and actuator-control nodes. The dual-partition live-update Flash allows firmware field updates with a fallback image, a requirement for serviceable vehicle electronics, while ECC protects program memory against bit upsets over automotive lifetimes. Distributors categorize this MPN under Functional Safety (FuSa) support, aiding ISO-oriented development flows. An external CAN FD transceiver and proper ESD/EMC treatment of the bus pins complete the node design.
Recommended
Advanced Sensing and Control
High-precision sensing front ends - pressure, flow, and industrial condition monitoring - use the DSPIC33CK128MP208-E/PT's 100 MIPS DSP engine for digital filtering, FFT-based diagnostics, and calibration math on-board. The modified Harvard architecture streams ADC results through DSP instructions with deterministic latency, and the 128 KB Flash with ECC retains compensation tables and event logs safely across the -40C to +150C range demanded by engine bays and industrial ovens. Firmware-implemented sensor fusion replaces discrete filter components, cutting BOM cost while enabling in-field recalibration over CAN FD or UART. Design trade-off: reserve enough Flash headroom for logging buffers, or step up to the pin-compatible DSPIC33CK256MP208 if data storage grows.
Recommended
Server and Telecom Power Shelves
Datacenter power shelves and telecom rectifiers employ digital control for hot-swap management, telemetry, and multi-phase buck conversion. The DSPIC33CK128MP208-E/PT's 100 MHz core closes current loops per phase at high PWM resolution, while its CAN FD port (adapted or bridged) and UART links support PMBus-style telemetry and rack-level monitoring. The 3.0 V to 3.6 V single-rail operation simplifies bias design from auxiliary housekeeping supplies. Firmware-driven phase shedding improves light-load efficiency - a key metric for 80 PLUS Titanium-class supplies. Because server PSUs run hot, the extended +150C rating provides junction margin that standard I-grade parts lack. Designers should validate control-loop stability across load transients and use the live-update partitions for field firmware fixes without rack downtime.
Recommended
Wireless Charging and LED Drivers
Resonant wireless-power transmitters and high-power LED drivers rely on precise frequency and phase control of half- or full-bridge resonant stages - exactly what the dsPIC33CK's high-resolution PWM delivers. The DSPIC33CK128MP208-E/PT regulates output power by modulating switching frequency with sub-nanosecond effective PWM steps, keeping the resonant tank locked despite coupling and load changes. Foreign-object detection and thermal derating algorithms run on the 100 MIPS DSP core with fast ADC sampling. The 128 KB Flash hosts firmware for multiple coil/power profiles, and the -40C to +150C grade suits automotive wireless chargers mounted near the underbody. EMI-conscious layout of PWM gate outputs and disciplined dead-time settings are the main design considerations.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK128MP208-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK128MP208-I/PT | DSPIC33CK256MP208-E/PT | DSPIC33CK64MP208-E/PT | DSPIC33CK128MP205-E/PT |
|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 64-TQFP - different, not drop-in |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz (100 MIPS) | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Program Flash | 128 KB (ECC, dual partition) | 128 KB | 256 KB | 64 KB | 128 KB |
| Operating Temperature | -40C to +150C | -40C to +85C | -40C to +150C | -40C to +150C | -40C to +150C |
| 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 | 3.0 V to 3.6 V |
| CAN FD | Yes | Yes | Yes | Yes | Yes |
| Pin Count | 80 | 80 - pin-to-pin compatible | 80 - pin-to-pin compatible | 80 - pin-to-pin compatible | 64 - requires PCB rework |
Key Differentiators
- Extended -40C to +150C automotive-grade operation (vs DSPIC33CK128MP208-I/PT)
- 128 KB ECC Flash with dual-partition live update (vs DSPIC33CK64MP208-E/PT)
- 80-pin I/O count advantage (vs DSPIC33CK128MP205-E/PT)
Design Notes
The dsPIC33CK core requires a regulated 3.0 V to 3.6 V supply. Derive the rail from a 3.3 V LDO or buck with adequate transient response; place 0.1 uF ceramic decoupling at every VDD/VSS pair plus bulk capacitance near the 80-TQFP. Observe the 3.6 V maximum during load-dump or brownout events in automotive systems - a local clamp or supervisor protects the supply. Verify that all VDD pins in the 80-pin ring are connected; floating pairs cause erratic Flash operation at 100 MHz.
The E-grade rating (-40C to +150C) means junction temperature is specified up to +150C; do not confuse this with ambient. In dense digital-power boards, estimated junction rise must be checked: with the 12x12 mm TQFP exposed-leadframe thermal path, keep predicted TJ at max load and max ambient below 150C with margin. Use the Microchip thermal design data for the TQFP theta-JA on your stackup, and consider copper pour on the pin ring for heat spreading.
Do not treat the -E/PT and -I/PT as interchangeable in high-temperature designs: the industrial I-grade tops out at +85C. Also remember dual-partition live update halves usable contiguous Flash (each partition of the 128 KB is 64 KB in partitioned mode) - if your firmware image exceeds one partition, run unpartitioned at the cost of live-update capability. Program the configuration (FICD/FPOR) words correctly for CAN FD pin mapping before first flash to avoid a bricked debug port.
Compliance Information
Distributor listings describe the part as Automotive and Functional Safety (FuSa) categorized; formal AEC-Q100 qualification status, RoHS/REACH declarations were not captured in the verified data - consult the Microchip product page environmental documents.
