DSPIC33CK64MP202T-I/SS - 100MHz 64KB DSC 28-SSOP | Microchip
MPN: DSPIC33CK64MP202T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.16 | $41.60 |
| 25 | $3.98 | $99.50 |
| 100 | $3.52 | $352.00 |
| 1,000 | $3.08 | $3,080.00 |
DSPIC33CK64MP202T-I/SS Overview
A digital signal controller combines the computational throughput of a DSP with the deterministic peripheral set and interrupt architecture of a microcontroller. In the power-management hierarchy, the dsPIC33CK family sits within Microchip's 16-bit MCU/DSC portfolio, bridging general-purpose PIC MCUs and dedicated digital power controllers. DSCs execute closed-loop control algorithms, such as proportional-integral-derivative loops and predictive control, at switching frequencies that discrete MCUs cannot sustain.
Key features of this part include the 100 MHz dsPIC33C DSC core with DSP instruction extensions, 64 KB (64K x 8) of dual-panel flash enabling live firmware updates, and 8 KB of RAM for control-loop state storage. The MP-series peripherals add dual on-chip op-amps for current-sense conditioning, 12-bit ADCs for simultaneous sampling, and high-resolution PWM outputs suited to power conversion topologies.
The dsPIC33CK family is explicitly positioned by Microchip for digital power supplies, motor control, advanced sensing and control, and functional-safety (FuSa) capable designs. The T-I/SS ordering code indicates tape-and-reel packaging, industrial temperature range (-40C to +85C), and SSOP-28 surface-mount format.
Typical applications include AC-DC and DC-DC converter digital control, brushless DC and PMSM motor drives, power-factor-correction stages, and solar micro-inverters. The integrated op-amps remove external current-amplifier stages, reducing BOM count in compact power stages.
For design, plan flash panel allocation early: dual-panel flash permits programming one panel while executing from the other, but code must fit a single 32 KB panel per bank. Verify pinout assignments against the datasheet before layout, since 28-pin variants multiplex ADC, PWM, and communication functions heavily.
This page synthesizes distributor availability data, drop-in family alternatives, and design guidance not consolidated on the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK64MP202T-I/SS — 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 DSPIC33CK64MP202T-I/SS (same form factor and footprint) — differing in Package, Operating Temperature, Core, Architecture, PWM.
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View Datasheet →DSPIC33CK64MP202T-I/SS Maximum Ratings & Electrical Characteristics
| Core | dsPIC33C 16-bit DSC |
| CPU Speed | 100 MHz |
| Program Memory | 64 KB (64K x 8) Flash, dual panel |
| RAM | 8 KB |
| Supply Voltage | 3.3 V |
| ADC | 12-bit |
| On-chip Op-Amps | Yes (integrated operational amplifiers) |
| PWM | High-Resolution PWM |
| Package | 28-SSOP (0.209 in, 5.30 mm width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Packaging | Tape & Reel (T suffix) |
| Standard Pack Quantity | 2100 |
| Product Family | dsPIC33CK MP series, Functional Safety (FuSa) capable |
| Target Applications | Digital power, motor control, advanced sensing and control |
| CAN FD | Yes (family feature per datasheet) |
DSPIC33CK64MP202T-I/SS Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0 — Analog input 0 / port pin |
| Pin 3 | AN1 — Analog input 1 / port pin |
| Pin 4 | PGD1/AN2 — In-circuit debug/programming data, analog input 2 |
| Pin 5 | PGC1/AN3 — In-circuit debug/programming clock, analog input 3 |
| Pin 6 | AN4 — Analog input 4 / port pin |
| Pin 7 | VDD — Power supply (3.3 V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — Oscillator crystal input / external clock |
| Pin 10 | OSC2 — Oscillator crystal output |
| Pin 11 | AN5 — Analog input 5 / port pin |
| Pin 12 | AN6 — Analog input 6 / port pin |
| Pin 13 | AN7 — Analog input 7 / port pin |
| Pin 14 | VDD — Power supply (3.3 V) |
| Pin 15 | VSS — Ground reference |
| Pin 16 | PWM1L — High-resolution PWM 1 low-side output |
| Pin 17 | PWM1H — High-resolution PWM 1 high-side output |
| Pin 18 | PWM2L — High-resolution PWM 2 low-side output |
| Pin 19 | PWM2H — High-resolution PWM 2 high-side output |
| Pin 20 | PWM3L — High-resolution PWM 3 low-side output |
| Pin 21 | PWM3H — High-resolution PWM 3 high-side output |
| Pin 22 | VSS — Ground reference |
| Pin 23 | VDD — Power supply (3.3 V) |
| Pin 24 | AN8 — Analog input 8 / port pin |
| Pin 25 | AN9 — Analog input 9 / port pin |
| Pin 26 | AN10 — Analog input 10 / port pin |
| Pin 27 | AN11 — Analog input 11 / port pin |
| Pin 28 | VDD — Power supply (3.3 V) |
Typical Applications
DSPIC33CK64MP202T-I/SS is suitable for 6 applications: Digital Power Supply Control, Brushless DC and PMSM Motor Control, Power Factor Correction (PFC) Stages, Advanced Sensing and Control Systems, Solar Micro-Inverters and Power Conversion, Industrial Control and Networking Nodes.
Digital Power Supply Control
The DSPIC33CK64MP202T-I/SS fits AC-DC and DC-DC digital power control because its 100 MHz dsPIC33C core executes voltage- and current-mode compensators at switching frequencies well beyond 100 kHz, while the high-resolution PWM delivers fine duty-cycle and phase resolution for tight output regulation. The dual integrated op-amps condition shunt or current-transformer signals on-chip, feeding the 12-bit ADC without external amplifier stages, which shortens the analog signal path and reduces offset error sources. In a typical LLC or buck converter, the DSC closes the loop in firmware, enabling soft-start sequencing, nonlinear gain scheduling, and fault logging that analog controllers cannot provide. The main trade-off versus a dedicated analog controller is firmware development effort and the need to validate loop stability across line and load conditions, but the payoff is a single-controller platform reusable across power product lines.
Recommended
Brushless DC and PMSM Motor Control
For BLDC and PMSM drives, the DSPIC33CK64MP202T-I/SS provides the three pillars of field-oriented control: fast 12-bit ADC sampling of phase currents, high-resolution PWM with complementary outputs and dead-time insertion, and DSP multiply-accumulate throughput for the Clarke/Park transforms at the 100 MHz core rate. The integrated op-amps buffer inline shunt sensors directly, allowing a single-shunt or dual-shunt sensing topology without a separate amplifier IC, which matters in compact 28-pin designs. Microchip lists motor control as a primary dsPIC33CK application and supplies motor-control libraries and reference designs for the family. Performance consideration: with 8 KB of RAM, state observers and parameter-identification routines must be memory-conscious; for sensorless algorithms requiring large buffers, the pin-compatible DSPIC33CK256MP202-I/SS offers more flash for table-based compensation while preserving the same board layout.
Recommended
Power Factor Correction (PFC) Stages
In boost-PFC and totem-pole PFC stages, the DSPIC33CK64MP202T-I/SS implements average-current-mode control with the fast control-loop bandwidth that high-power-factor designs require. The high-resolution PWM supports multi-phase interleaving with precise phase offsets, reducing input ripple current and easing EMI filter design, while the 12-bit ADC samples input voltage, inductor current, and bus voltage within one PWM period. The on-chip op-amps process current-shunt feedback with minimal propagation delay, which is critical in continuous-conduction-mode PFC where loop delay erodes phase margin. The dual-panel flash allows firmware updates in the field without halting the converter. Compared with a fixed-function PFC controller, this DSC adds programmability for hold-up-time management, inrush limiting, and digital protection, at the cost of firmware qualification effort for safety-certified products.
Recommended
Advanced Sensing and Control Systems
The DSPIC33CK64MP202T-I/SS suits advanced sensing nodes that combine multiple analog channels with real-time decision logic. The 12-bit ADC multiplexes sensor inputs while the integrated op-amps amplify low-level signals from thermistors, pressure bridges, or current sensors on the same die, cutting component count in compact sensing heads. The 100 MHz core applies digital filtering, calibration math, and threshold logic in real time, and the functional-safety (FuSa) categorization at DigiKey supports deployments where diagnostic coverage must be documented. Communication peripherals (CAN FD, UART, SPI, I2C, subject to 28-pin multiplexing) stream results to a host or network. Design consideration: with only 8 KB of RAM, buffer-heavy signal processing such as long FFT windows should be scoped carefully; the pin-compatible 256 KB flash variant offers headroom for expansion without board changes.
Recommended
Solar Micro-Inverters and Power Conversion
Grid-tied micro-inverter designs benefit from the DSPIC33CK64MP202T-I/SS combination of DSP throughput and mixed-signal integration. A single DSC can run maximum-power-point-tracking algorithms, generate the PWM waveforms for the DC-DC and DC-AC stages, and manage grid synchronization, all at the 100 MHz core clock. The high-resolution PWM enables the multi-level switching schemes these topologies require, and the 12-bit ADC captures voltage and current feedback per switching cycle for both MPPT and grid-current control loops. Microchip positions the dsPIC33CK family explicitly for digital power conversion, with reference designs available from Microchip for photovoltaic applications. The industrial -40C to +85C temperature grade of the T-I/SS matches outdoor enclosure environments, though extended-temperature sites should evaluate the E-grade MP502 or review derating with Microchip reliability data.
Recommended
Industrial Control and Networking Nodes
As an industrial control node, the DSPIC33CK64MP202T-I/SS merges deterministic real-time control with CAN FD connectivity, supported by the dsPIC33CK datasheet coverage of controllers with CAN Flexible Data. Typical roles include distributed I/O controllers, actuator drivers, and sub-network gateways where the 28-pin SSOP footprint fits dense control boards. The 100 MHz core executes control loops and protocol stacks concurrently with predictable interrupt latency, and dual-panel flash supports field firmware updates over CAN without extended downtime, an important serviceability feature in installed industrial equipment. The DigiKey FuSa categorization assists machinery applications pursuing functional-safety documentation. RAM budget of 8 KB limits concurrent protocol buffering; designs aggregating many CAN FD frames simultaneously should evaluate the pin-compatible higher-memory dsPIC33CK variants listed on this page before committing the layout.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK64MP202T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK64MP202-I/SS | DSPIC33CK32MP502-I/SS | DSPIC33CK64MC102T-I/SS | DSPIC33CK256MP202-I/SS | DSPIC33CK32MP502-E/SS |
|---|---|---|---|---|---|---|
| Package | 28-SSOP (5.30 mm width) | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 64 KB dual panel | 64 KB dual panel | 32 KB | 64 KB | 256 KB | 32 KB |
| On-chip Op-Amps | Yes | Yes | Yes (MP series) | Reduced (MC series) | Yes (MP series) | Yes (MP series) |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (E grade) |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
Key Differentiators
- Integrated op-amps eliminate external current-amplifier stages (vs DSPIC33CK64MC102T-I/SS)
- 64 KB dual-panel flash enables live firmware update (vs DSPIC33CK32MP502-I/SS)
- Tape-and-reel format for automated production (vs DSPIC33CK64MP202-I/SS)
- Cost-optimized 28-pin entry to the MP series (vs DSPIC33CK256MP202-I/SS)
Design Notes
The 28-SSOP package multiplexes ADC inputs, op-amp terminals, PWM outputs, and communication peripherals on shared pins. Before layout, lock the peripheral pin selection in Microchip's MPLAB Code Configurator, then print the final pinout and cross-check against the datasheet pin diagrams for the 28-pin variant. Decouple each VDD pin (7, 14, 23, 28) with a 100 nF ceramic capacitor placed within 2 mm of the pin, plus one bulk 4.7 uF to 10 uF capacitor near the supply entry. Route analog inputs away from PWM traces to prevent switching noise coupling into the 12-bit ADC sampling capacitors.
Operate the DSC from a clean 3.3V rail; in digital power applications the same board often carries noisy 12V or 400V domains, so use a dedicated low-noise LDO for the MCU supply and separate the analog ground from the power ground with a single-point connection under the ADC region. The integrated op-amps share the chip supply, so their output swing and noise floor follow VDD quality. Estimated: with core and I/O currents in the tens-of-mA class (consult the datasheet electrical characteristics for exact figures), a 100 mA headroom LDO is typically sufficient, but verify against the datasheet IDD tables at 100 MHz with all peripherals active.
Do not assume 64 KB flash is one contiguous panel: dual-panel architecture splits memory into two banks for live-update programming, so the linker must be configured so that each panel holds a complete, independently executable image if bootloading is planned. Also, pin functions on the 28-pin part change between peripheral remapping options; a design migrated from a larger dsPIC33CK package will not be pin-identical. Finally, the 'T' suffix denotes tape-and-reel with a 2100-unit standard quantity - order the non-T tube version for prototypes to avoid excess reel inventory.
Compliance Information
Standard Microchip RoHS-compliant, lead-free surface-mount product. Exact certificates for the T-I/SS ordering code should be confirmed on the Microchip product page.
