dsPIC33CK32MP505-I/M4 - 100MHz 16-bit DSC CAN-FD | Microchip
MPN: DSPIC33CK32MP505-I/M4 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.95 | $49.50 |
| 100 | $4.48 | $448.00 |
| 500 | $4.1 | $2,050.00 |
| 1,000 | $3.78 | $3,780.00 |
DSPIC33CK32MP505-I/M4 Overview
Key differentiating features include the 100 MHz dsPIC33CK core delivering up to 100 MIPS, ECC-protected dual-partition program Flash enabling Live Update firmware overwrite, high-resolution PWM outputs with nanosecond-scale duty resolution, and an on-chip 12-bit ADC pipeline sized for multi-channel current and voltage sampling in fast control loops. The integrated operational amplifiers reduce external component count in current-sense front ends, and CAN FD provides the higher payload and faster data phases required by modern industrial and automotive networks.
Architecturally, the device uses a modified Harvard architecture with a single core, hardware DSP engine, and Memory Built-In Self-Test (MBIST) on the 8 KB SRAM. The 32 KB Flash uses error-correction coding (ECC) for functional-safety-oriented designs, and the dual-panel organization allows safe in-field firmware updates.
Typical applications include digital power supplies (totem-pole PFC, LLC converters), brushless DC and PMSM motor control, DC-DC and wireless-charging stages, and advanced sensing nodes where the ADC, op-amps, and high-resolution PWM close tight analog control loops.
For design, budget the 3.0V to 3.6V supply domain carefully and use the multiple VDD/VSS pairs with 100 nF decoupling per pair; route the exposed thermal pad to a ground pour for thermal and signal-integrity benefits.
This page synthesizes distributor inventory data, drop-in family alternatives, pinout guidance, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK32MP505-I/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 DSPIC33CK32MP505-I/M4 (same form factor and footprint) — differing in Package, Architecture, CAN Interface, Core, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK32MP505-E/M4
✅ Drop-In✓ In Stock
$3.55 / Unit
View Datasheet →DSPIC33CK64MP505-I/M4
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.1 / Unit
View Datasheet →DSPIC33CK32MP205-I/M4
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.39 / Unit
View Datasheet →DSPIC33CK128MP205-E/M4
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$8.9 / Unit
View Datasheet →DSPIC33CK32MP505-I/M4 Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC |
| CPU Speed | 100 MHz (up to 100 MIPS) |
| Program Flash Size | 32 KB (dual-partition, ECC, Live Update) |
| Data SRAM | 8 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C |
| CAN Interface | CAN FD |
| ADC Resolution | 12-bit |
| Integrated Op-Amps | Yes (on-chip op-amps) |
| PWM | High-Resolution PWM |
| Architecture | Modified Harvard, single core |
| Memory Features | MBIST on SRAM, ECC on Flash |
| Package | UQFN-48 with exposed pad (M4) |
| Mounting Type | Surface Mount |
| Family | dsPIC33CK MP (motor control / digital power) |
| Programming Interface | ICSP (ICSPCLK/ICSPDAT, multiple PGECx/PGEDx pairs) |
DSPIC33CK32MP505-I/M4 uqfn-48 with exposed pad (m4) Pin Configuration Guide
Pin configuration for DSPIC33CK32MP505-I/M4 (uqfn-48 with exposed pad (m4) 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 DSPIC33CK32MP505-I/M4.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK32MP505-I/M4 is suitable for 6 applications: Digital Power Supplies (PFC / LLC), BLDC / PMSM Motor Control (FOC), CAN FD Industrial Networking Nodes, Advanced Sensing and Signal Conditioning, Wireless Charging and DC-DC Converters, Battery Management and Test Instrumentation.
Digital Power Supplies (PFC / LLC)
The DSPIC33CK32MP505-I/M4 fits totem-pole PFC and LLC converter control directly: its 100 MHz dsPIC33CK core closes current-mode loops at hundreds of kHz switching frequencies with deterministic interrupt latency, while the high-resolution PWM provides sub-ns duty resolution that eliminates limit-cycle oscillation in peak-current control. The 12-bit ADC with multiple channels samples input/output voltage and inductor current in a single scan; the on-chip op-amps can amplify shunt signals without external amplifiers, cutting BOM cost. Place the DSC between the sensing network and gate drivers, using the dual-partition Flash to push firmware updates to deployed converters. Trade-off: 32 KB Flash bounds loop-compensation code and compensation tables, so complex multi-stage algorithms may need the 256 KB MP205 sibling.
Recommended
BLDC / PMSM Motor Control (FOC)
Field-oriented control of brushless DC and permanent-magnet synchronous motors is the flagship use case for this part. The 100 MHz core executes Clarke/Park transforms and PI current loops in a fraction of a PWM period; the high-resolution PWM generates precisely centered SVPWM waveforms; and the integrated op-amps plus 12-bit ADC form a compact phase-current sensing chain that samples all three shunts synchronously with PWM centers, minimizing switching noise in readings. The 8 KB SRAM holds state observers and start-up ramps for sensorless operation. Microchip's dsPIC33CK motor-control PIM ecosystem (e.g., MA330041-1 class boards) provides reference hardware. The CAN FD interface links the drive to higher-level industrial or vehicle networks for speed commands and diagnostics.
Recommended
CAN FD Industrial Networking Nodes
With its integrated CAN FD module, the DSPIC33CK32MP505-I/M4 serves as an intelligent networked control node in industrial automation and building systems. CAN FD's larger payloads (up to 64 data bytes) and faster data phase let this node stream diagnostics, ADC traces, or sensor fusion results at higher throughput than classic CAN, while the 100 MHz core runs local real-time control independently of the bus. The dual-partition ECC Flash enables field firmware updates across a fleet without service calls. Pair the controller with an external CAN FD transceiver on the CANTX/CANRX pins with proper termination (120 ohm) and a 3.0-3.6V clean supply. The -I temperature grade covers standard industrial enclosures; use the -E variant for extended environments.
Recommended
Advanced Sensing and Signal Conditioning
The on-chip operational amplifiers and 12-bit ADC make this DSC a compact analog front end for advanced sensing nodes: current shunts, pressure bridges, or thermistor chains can be amplified and digitized without a separate analog signal chain IC. The 100 MHz core applies digital filtering, calibration, and linearization locally, then ships conditioned values over CAN FD, UART, or SPI. Memory Built-In Self-Test (MBIST) on the 8 KB SRAM and ECC on the 32 KB Flash support functional-safety-oriented sensor designs requiring demonstrable memory integrity. Because the ADC and op-amp share the same die, channel-to-channel timing is deterministic - valuable for differential or multi-phase measurements. Budget analog layout care: separate analog ground returns and keep high-dV/dt PWM traces away from op-amp inputs.
Recommended
Wireless Charging and DC-DC Converters
Resonant wireless-power transmitters and high-density DC-DC converters need exactly this combination: fast control rate, fine PWM resolution, and synchronized multi-channel ADC sampling. The DSPIC33CK32MP505-I/M4 regulates resonant-tank frequency or phase-shift duty using its high-resolution PWM, while the 12-bit ADC tracks coil/inductor current via the integrated op-amps for foreign-object detection or cycle-by-cycle current limiting. The 100 MIPS core keeps loop update rates above 100 kHz with headroom for protection state machines. Because these converters run hot, evaluate the UQFN-48 exposed thermal pad as a heat-spreading path into the PCB ground pour, and consider the -E extended-temperature variant for thermally aggressive enclosures. The 32 KB Flash comfortably holds compensation and communication firmware for a single converter stage.
Recommended
Battery Management and Test Instrumentation
In battery-management systems and bench instrumentation, the DSPIC33CK32MP505-I/M4 coordinates cell-voltage monitoring, current integration, and protection sequencing. The multiple 12-bit ADC channels sample stacked-cell sense lines; the op-amps condition shunt current; and the 100 MHz core coulomb-counts and executes state-machine protection with microsecond reaction. CAN FD connects the pack controller to vehicle or inverter networks, a common architecture in e-mobility and storage systems. ECC Flash and MBIST SRAM improve the integrity story for safety-relevant battery cut-off decisions, though formal functional-safety certification requires system-level analysis beyond the silicon. The dual-partition Live Update feature lets fleet BMS firmware be revised remotely as chemistry or pack configurations change over product lifetime.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK32MP505-I/M4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK32MP505-E/M4 | DSPIC33CK64MP505-I/M4 | DSPIC33CK32MP205-I/M4 | DSPIC33CK128MP205-E/M4 |
|---|---|---|---|---|---|
| Package | UQFN-48 (M4) | UQFN-48 (M4) - same | UQFN-48 (M4) - same | UQFN-48 (M4) - same | UQFN-48 (M4) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 32 KB (dual-partition, ECC) | 32 KB | 64 KB | 256 KB | 128 KB |
| CPU Speed | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS |
| CAN FD | Yes | Yes | Yes | Yes | Yes |
| Integrated Op-Amps | Yes | Yes | Yes | Yes | Yes |
| Temperature Grade | Industrial (-I) | Extended (-E) | Industrial (-I) | Industrial (-I) | Extended (-E) |
Key Differentiators
- Dual-partition 32 KB ECC Flash with Live Update (vs DSPIC33CK64MP505-I/M4)
- Industrial temperature grade at standard cost (vs DSPIC33CK32MP505-E/M4)
- Cost-optimized memory sizing for single-loop control (vs DSPIC33CK32MP205-I/M4)
- Integrated analog front end (op-amps + 12-bit ADC) (vs DSPIC33CK32MP505-E/M4)
Design Notes
The UQFN-48 exposed pad (M4) must be soldered to a ground pour: it is both the primary thermal path and a low-inductance ground reference for the 100 MHz core. Use an array of thermal vias (typically 4x4 or 5x5) under the pad connecting to internal ground planes, per standard Microchip QFN layout guidance. All VDD pairs need individual 100 nF ceramic decoupling placed within 2 mm of the pins, plus 4.7-10 uF bulk near the supply entry. Estimated: at 100 MIPS with peripheral loads, core current is on the order of tens of mA, so IR drop across thin traces is minor but decoupling loop inductance dominates supply integrity.
ICSP programming requires matched PGECx/PGEDx pairs: the device provides multiple clock/data pairs, and ICSPCLK must pair with the ICSPDAT of the same index (e.g., PGEC2 with PGED2), as documented in third-party programming guides (NSDSP notes). Mismatched pairs will fail programming. Also, do not attempt Live Update on a single-partition-configured device - dual-partition mode must be enabled in configuration words, and ECC cannot be disabled without losing the Live Update safety property. Reserve one debug pair exclusively for programming header routing in production layouts.
Keep high-dV/dt PWM outputs and gate-driver traces physically separated from the op-amp inputs and ADC sense lines; switching-node coupling into shunt sense lines appears as false overcurrent events in fast control loops. Route ADC sense traces as short Kelvin connections directly from shunt resistors to the pins. Estimated: with a 100 kHz switching edge of roughly 10 ns, harmonics extend past 30 MHz, so a local ground guard trace around analog routing and an RC anti-alias filter (e.g., 1 kohm / 1 nF, fc about 159 kHz) ahead of ADC inputs significantly improve conversion accuracy.
Supply the device from a regulated 3.3 V rail held within the 3.0 V to 3.6 V window under all transients, including CAN FD transceiver load steps sharing the same rail. Estimated: a typical 3.3 V LDO with 200 mV dropout headroom and 10 uF output capacitance handles the DSC core plus a CAN transceiver, but verify with your transceiver's transmit current. Brown-out reset should be enabled so flash writes and EEPROM-like emulation do not occur below the minimum operating voltage, protecting code integrity during supply sag.
Compliance Information
The standard -I ordering code is not AEC-Q100 qualified; consult Microchip for automotive-qualified dsPIC33 ordering options. RoHS/REACH status should be confirmed on the Microchip product page for the exact ordering code.
