DSPIC33CK64MP102-I/SS - 100MHz 64KB DSC 28-SSOP | Microchip
MPN: DSPIC33CK64MP102-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.32 | $4.32 |
| 10 | $3.89 | $38.90 |
| 100 | $3.46 | $346.00 |
| 500 | $3.11 | $1,555.00 |
| 1,000 | $2.86 | $2,860.00 |
DSPIC33CK64MP102-I/SS Overview
A digital signal controller combines the deterministic interrupt behavior and peripheral set of a microcontroller with the multiply-accumulate DSP engine of a digital signal processor. In the system hierarchy it sits above a plain MCU (adding a DSP engine and high-speed analog) and below a full DSP or application processor, making it the standard choice for closed-loop, sample-rate-driven control loops such as power-factor correction, resonant converters and field-oriented motor control.
Key differentiating features of the dsPIC33CK64MP10X family include the 100 MHz single-core execution (up to 100 MIPS), a 3.0 V to 3.6 V single-supply operating range, integrated op amps that close current-sense loops without external amplifiers, and 12-bit ADCs with fast sample rates suitable for per-cycle current sampling in switching converters. High-resolution PWM modules provide sub-nanosecond edge placement for phase-shifted and LLC topologies.
Architecturally, the device pairs the 16-bit fixed-point CPU with a DSP engine (barrel shifter, 17-bit x 17-bit multiplier, dual operand fetch) and DMA channels that move ADC results and UART/SPI data without CPU intervention. The -40C to +125C industrial temperature grade (suffix -I) suits harsh environments, and 3.3V-compatible I/O allows direct drive of gate drivers from the PWM pins.
Typical applications include digital switch-mode power supplies (LLC, totem-pole PFC), brushless DC and PMSM motor drives using field-oriented control, digital lighting ballasts, battery chargers, and advanced sensing nodes. The op-amp-plus-ADC-plus-PWM integration lets one device implement an entire control loop with minimal external analog circuitry.
Design consideration: budget the ADC sampling time and PWM dead time in firmware before layout, since the 100 MIPS core is fast enough that software latency, not silicon speed, usually limits loop bandwidth. Keep the analog ground for the ADC and op amps separated from the power-stage ground return path.
This page synthesizes distributor pricing, drop-in same-family alternatives, pinout data and practical design notes not found on a single manufacturer page.
Drop-in alternatives for DSPIC33CK64MP102-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 DSPIC33CK64MP102-I/SS (same form factor and footprint) — differing in Operating Temperature, Package, PWM, Core Architecture, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK64MC102-I/SS
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →DSPIC33CK32MP102-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK16MP102-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MP202-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.9 / Unit
View Datasheet →DSPIC33CK32MC102-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.1 / Unit
View Datasheet →DSPIC33CK64MP102-I/SS Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC33C DSC core |
| Maximum CPU Speed | 100 MHz (100 MIPS) |
| Program Memory (Flash) | 64 KB (64K x 8) |
| SRAM | 8 KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| ADC Resolution | 12-bit |
| On-Chip Op Amps | Yes |
| Comparators | Yes |
| PWM Peripheral | High-Resolution PWM |
| DMA Channels | Yes (4 channels per Microchip USA listing) |
| DSP Engine | Barrel shifter, single-cycle MAC, boundary scan |
| Operating Temperature | -40C to +125C (industrial, -I suffix) |
| Package | 28-SSOP (5.30 mm width) |
| Mounting Type | Surface Mount |
| Series | dsPIC33CK64MP10X |
DSPIC33CK64MP102-I/SS Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/RA0 — Analog input 0 / digital I/O |
| Pin 3 | AN1/RA1 — Analog input 1 / digital I/O |
| Pin 4 | AN2/RA2 — Analog input 2 / digital I/O |
| Pin 5 | AN3/RA3 — Analog input 3 / digital I/O |
| Pin 6 | AN4/RB0 — Analog input 4 / digital I/O |
| Pin 7 | AN5/RB1 — Analog input 5 / digital I/O |
| Pin 8 | AN6/RB2 — Analog input 6 / digital I/O |
| Pin 9 | AN7/RB3 — Analog input 7 / digital I/O |
| Pin 10 | VSS — Ground reference |
| Pin 11 | VDD — Power supply (3.0 V to 3.6 V) |
| Pin 12 | PWM1L/RB4 — High-resolution PWM output / digital I/O |
| Pin 13 | PWM1H/RB5 — High-resolution PWM output / digital I/O |
| Pin 14 | AN8/RB6 — Analog input 8 / digital I/O |
| Pin 15 | AN9/RB7 — Analog input 9 / digital I/O |
| Pin 16 | PWM2L/RB8 — High-resolution PWM output / digital I/O |
| Pin 17 | PWM2H/RB9 — High-resolution PWM output / digital I/O |
| Pin 18 | OPA1OUT/RC0 — Op amp 1 output / digital I/O |
| Pin 19 | RC1 — Digital I/O / peripheral pin select |
| Pin 20 | RC2 — Digital I/O / peripheral pin select |
| Pin 21 | OSCI/RC3 — Oscillator input / digital I/O |
| Pin 22 | OSCO/RC4 — Oscillator output / digital I/O |
| Pin 23 | PGD/RC5 — In-circuit debug data / programming |
| Pin 24 | PGC/RC6 — In-circuit debug clock / programming |
| Pin 25 | RC7 — Digital I/O / peripheral pin select |
| Pin 26 | RC8 — Digital I/O / peripheral pin select |
| Pin 27 | RC9 — Digital I/O / peripheral pin select |
| Pin 28 | VSS — Ground reference |
Typical Applications
DSPIC33CK64MP102-I/SS is suitable for 6 applications: Digital Switch-Mode Power Supplies, Brushless DC and PMSM Motor Drives, Battery Chargers and Power Conversion, Digital Lighting and LED Drivers, Advanced Sensing and Signal Processing Nodes, Embedded Control and Industrial Automation.
Digital Switch-Mode Power Supplies
The DSPIC33CK64MP102-I/SS fits digitally controlled converters such as LLC resonant stages and totem-pole PFC because its 100 MHz core closes control loops fast enough for per-switching-cycle updates, while high-resolution PWM provides sub-nanosecond edge placement needed for phase-shifted topologies. The integrated 12-bit ADC samples output voltage and inductor current synchronized to the PWM period, and on-chip comparators can trip cycle-by-cycle current limits in hardware without CPU latency. Firmware-based control eliminates dedicated analog compensators, letting one controller handle multiple operating modes (burst, CC, CV) and telemetry via UART/SPI. Place the ADC trigger away from switching edges and use DMA to stream results so the control ISR remains deterministic at 100 MIPS.
Recommended
Brushless DC and PMSM Motor Drives
Field-oriented control on the DSPIC33CK64MP102-I/SS leverages the 16-bit DSP engine (single-cycle MAC) to run Clarke/Park transforms and PI current loops within one PWM period at 100 MHz. The high-resolution PWM module generates six complementary outputs with programmable dead time for the three-phase inverter, and the integrated op amps amplify low-side shunt currents before the 12-bit ADC converts them - eliminating external amplifier ICs and shrinking the drive board. Hardware comparators provide overcurrent shutdown independent of firmware. The 3.3V-compatible PWM outputs can directly drive optocoupled or level-shifted gate-driver inputs per Microchip reference designs, and the -40C to +125C industrial grade suits industrial and appliance environments.
Recommended
Battery Chargers and Power Conversion
Multi-chemistry battery chargers benefit from the DSPIC33CK64MP102-I/SS combination of 64 KB Flash for charging state machines, communication stacks (SMBus/PMBus over I2C) and safety diagnostics, all executing on the 100 MIPS core. The 12-bit ADC monitors pack voltage, current and temperature with multiple channels scanning under DMA control, while high-resolution PWM drives the buck or flyback charging stage with precise duty resolution across wide input ranges. Comparators implement hardware fast-fault shutdown if cell current exceeds limits. The 8 KB SRAM accommodates charging logs and SOC estimation buffers. One DSC replaces discrete charger controllers plus a supervision MCU, reducing BOM count in adapters and power banks.
Recommended
Digital Lighting and LED Drivers
Digitally controlled LED drivers use the DSPIC33CK64MP102-I/SS for constant-current regulation, dimming (PWM or CCR) and DMX/UART-based control interfaces in a single device. The high-resolution PWM achieves very deep dimming ratios because pulse widths can be adjusted in sub-nanosecond steps at 100 MHz, avoiding the visible flicker of coarse 8-bit controllers. The 12-bit ADC closes the current loop each switching cycle, holding LED current regulation tight over line and temperature, while op amps condition shunt signals without extra parts. The 64 KB Flash stores multiple dimming curves and protocol handlers, and the -40C to +125C grade covers luminaire thermal environments.
Recommended
Advanced Sensing and Signal Processing Nodes
As a sensing node, the DSPIC33CK64MP102-I/SS couples its on-chip op amps and 12-bit ADC to condition analog sensor outputs (pressure bridges, thermistors, current transformers) and its DSP engine to apply digital filtering (IIR/FIR) in real time at up to 100 MIPS. DMA streams ADC samples to the 8 KB SRAM without CPU overhead, and results are exported via UART, SPI or I2C to a host or cloud gateway. Compared with an analog-front-end plus MCU solution, the single-die integration reduces noise paths and BOM cost. The industrial -40C to +125C operating range and 3.0-3.6 V single-supply operation simplify deployment in industrial monitoring equipment.
Recommended
Embedded Control and Industrial Automation
General industrial control tasks - pump control, heater regulation, valve sequencing - run well on the DSPIC33CK64MP102-I/SS because the 100 MHz core leaves ample headroom for the control algorithm plus communication and diagnostics simultaneously. Multiple serial peripherals (UART, SPI, I2C) link to HMIs, PLC backplanes and sensors, while the high-resolution PWM and ADC channels directly drive actuator power stages. The DSP engine accelerates FFT-based condition monitoring such as vibration analysis without an external processor. The 28-SSOP surface-mount package fits compact controller boards, and the -I industrial temperature grade plus boundary-scan support (JTAG) eases production test in automation hardware.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK64MP102-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK64MC102-I/SS | DSPIC33CK32MP102-I/SS | DSPIC33CK16MP102-I/SS | DSPIC33CK64MP202-I/SS |
|---|---|---|---|---|---|
| Package | 28-SSOP (5.30 mm) | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 100 MHz (100 MIPS) | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 64 KB | 64 KB | 32 KB | 16 KB | 128 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 16 KB |
| On-Chip Op Amps | Yes | Reduced (MC analog set) | Yes | Yes | Yes |
| ADC | 12-bit high-speed | 12-bit | 12-bit | 12-bit | 12-bit |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
Key Differentiators
- Full high-speed analog suite with on-chip op amps (vs DSPIC33CK64MC102-I/SS)
- 2x code headroom vs the 32 KB sibling at modest premium (vs DSPIC33CK32MP102-I/SS)
- Cost-optimized for compact control loops (vs DSPIC33CK64MP202-I/SS)
Design Notes
Keep the analog domain (ADC reference, op amp inputs, VDD/VSS for the analog section) on a quiet ground island separated from the power-stage switching return. Trigger the 12-bit ADC away from PWM switching edges using the PWM-triggered scan mode, and route current-shunt op amp inputs as short differential pairs. This prevents switching noise from corrupting the per-cycle current samples that field-oriented control and digital power loops depend on.
Decouple each VDD pin with 100 nF ceramic capacitors placed within 2 mm of the pin, plus bulk 10 uF near the device. The 100 MHz core produces fast current transients; a local LC or ferrite filter between the 3.3 V rail and the DSC supply reduces conducted noise back into the analog section. Do not exceed the 3.6 V maximum supply - 5 V I/O requires level shifting or series resistors.
The 3.3V-compatible PWM outputs can directly drive gate-driver inputs per Microchip reference designs, but confirm the gate driver logic threshold across the full -40C to +125C range. Also budget software latency: at 100 MIPS the core is rarely the bottleneck, but interrupt jitter in the control ISR is. Use DMA for ADC result movement and keep the control loop in a single high-priority ISR. Finally, verify flash usage fits 64 KB before substituting 32 KB or 16 KB same-family parts.
Estimated: the 28-SSOP package dissipation is modest for a DSC of this class (typically well under 0.5 W at 100 MHz with peripherals enabled), so a ground pour under the package is usually sufficient. For sustained heavy peripheral use (all op amps, ADC scanning at high rate), verify junction temperature against the -I grade limit of +125C using the thermal resistance in the Microchip datasheet absolute-maximum section.
Compliance Information
Compliance data was not present in the verified web data; consult the Microchip product page environmental section for RoHS/REACH status of DSPIC33CK64MP102-I/SS.
