DSPIC33CK512MP305-E/PT - 100MHz 16-bit DSC 512KB Flash | Microchip
MPN: DSPIC33CK512MP305-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.99 | $1.99 |
| 10 | $1.89 | $18.90 |
| 100 | $1.79 | $179.00 |
| 500 | $1.69 | $845.00 |
| 1,000 | $1.59 | $1,590.00 |
DSPIC33CK512MP305-E/PT Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and deterministic interrupt architecture of a microcontroller. In the embedded systems hierarchy, the dsPIC33CK family sits between general-purpose 16-bit MCUs and application-specific DSPs, making it a natural choice for closed-loop control systems that need fast multiply-accumulate (MAC) operations alongside real-time peripherals.
Key differentiating features include the dual-panel Flash supporting live firmware updates, up to eight DMA channels that move ADC and UART data without CPU intervention, on-chip operational amplifiers that buffer current-sense signals ahead of the ADC, and complementary or center-aligned PWM modules used for power conversion and motor commutation.
Architecturally, the dsPIC33CK core implements a 16-bit modified Harvard pipeline with DSP instruction extensions (MAC, MPY, and 40-bit accumulators), enabling single-cycle DSP math at 100 MIPS. The -E suffix designates the extended automotive-adjacent temperature grade of -40C to +125C, and the /PT suffix identifies the lead-free 48-lead TQFP tray packaging.
Typical applications are high-performance precision motor control (FOC for BLDC and PMSM machines), digital power supplies and PFC stages, and sensor signal conditioning where the integrated op amps and 12-bit ADC reduce external component count.
Design consideration: the 3.0 V to 3.6 V supply range requires a tight LDO or buck regulation; decouple all VDD/VSS pin pairs with 0.1 uF ceramics placed within 2 mm of the pins.
This page synthesizes distributor pricing, pin-compatible drop-in alternatives within the dsPIC33CK family, and practical design notes beyond the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK512MP305-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 DSPIC33CK512MP305-E/PT (same form factor and footprint) — differing in Operating Temperature, Package, PWM, Architecture, Data SRAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK512MP305-I/PT
✅ Drop-In✓ In Stock
$4.36 / Unit
View Datasheet →DSPIC33CK512MP605-I/PT
✅ Drop-In✓ In Stock
$1 / Unit
View Datasheet →DSPIC33CK256MP605-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK256MP205-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.92 / Unit
View Datasheet →DSPIC33CK256MP205-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.55 / Unit
View Datasheet →DSPIC33CK128MP205-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.61 / Unit
View Datasheet →DSPIC33CK512MP305-E/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC core |
| CPU Speed | 100 MHz (100 MIPS) |
| Program Memory Size | 512 KB (512K x 8) Flash, dual-panel |
| RAM Size | 64 KB (64K x 8) |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Number of I/O | 39 |
| ADC Resolution | 12 bit |
| ADC | Integrated 12-bit ADCs |
| Op Amps | Integrated operational amplifiers |
| PWM | High-resolution PWM modules |
| DMA Channels | 8 |
| Package | 48-TQFP (7x7 mm) |
| Operating Temperature | -40C to +125C (E grade) |
| Mounting Type | Surface Mount |
| Technology | CMOS |
| Functional Safety Support | FuSa (per onlinecomponents listing) |
DSPIC33CK512MP305-E/PT 48-tqfp (7x7 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK512MP305-E/PT (48-tqfp (7x7 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 DSPIC33CK512MP305-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK512MP305-E/PT is suitable for 6 applications: Field-Oriented Motor Control (FOC), Digital Power Supplies and PFC, Sensor Signal Conditioning, Industrial Automation and PLC I/O, Automotive-Adjacent and E-Mobility Subsystems, Battery Management and Charging Systems.
Field-Oriented Motor Control (FOC)
The DSPIC33CK512MP305-E/PT fits sensorless and sensored FOC for BLDC and PMSM drives because its 100 MHz / 100 MIPS core executes single-cycle DSP multiply-accumulate instructions, closing current loops at PWM rates of 50-100 kHz. The on-chip operational amplifiers amplify current-shunt signals directly ahead of the 12-bit ADCs, while the 8 DMA channels move phase-current samples to RAM without CPU intervention, keeping loop latency deterministic. The high-resolution PWM generates center-aligned, complementary drive signals with dead-time insertion. Implemented between gate drivers and current shunts, one 48-pin TQFP replaces a separate MCU plus external analog front end; the trade-off is the 3.0-3.6 V supply requiring a logic-level gate-driver interface.
Recommended
Digital Power Supplies and PFC
In digital AC-DC and DC-DC converters, the DSPIC33CK512MP305-E/PT controls boost-PFC, LLC, and buck stages using its high-resolution PWM for sub-nanosecond duty-cycle resolution, which directly reduces output ripple and improves transient response versus coarse 8-bit PWM controllers. The 12-bit ADCs sample output voltage and inductor current synchronously with the PWM period, and DMA offloads each conversion so the compensator loop runs unjittered at every switching cycle. The 512 KB dual-panel Flash stores multiple firmware images for adaptive control tuning in the field. Note the 100 MIPS headroom allows predictive nonlinear control laws, but the 3.6 V maximum supply mandates isolation or level-shifting to power-stage controllers.
Recommended
Sensor Signal Conditioning
The DSPIC33CK512MP305-E/PT consolidates analog front-end functions for multi-sensor nodes: its integrated op amps amplify thermocouple, pressure-bridge, or shunt signals before the 12-bit ADC, eliminating external instrumentation amplifiers and shrinking BOM cost on dense boards. The 100 MHz core applies FIR/IIR digital filtering and RMS computation in real time using DSP MAC instructions, and the 64 KB RAM buffers waveform captures for diagnostics. Results are exported over UART/SPI/I2C or PWM-encoded outputs. Gain and offset calibration constants reside in Flash panels that update in service. The constraint is input common-mode range bounded by the 3.6 V rail, so high-voltage sensors need front-end attenuation.
Recommended
Industrial Automation and PLC I/O
On PLC remotes, servo drives, and factory sensor hubs, the DSPIC33CK512MP305-E/PT provides 39 I/O pins and deterministic interrupt latency suited to hard-real-time sequencing at 100 MHz. The -40C to +125C E-grade tolerance survives cabinet heat near drives and power supplies, and the functional-safety-oriented dsPIC33CK feature set (FuSa support per distributor listings) eases qualification in machinery control. Dual-panel Flash allows firmware updates over the fieldbus without stopping production lines. Communication with PLC backplanes runs through UART/SPI/I2C links, with DMA keeping protocol servicing off the CPU. Design consideration: 3.0-3.6 V logic requires level translators for legacy 24 V industrial I/O thresholds.
Recommended
Automotive-Adjacent and E-Mobility Subsystems
The -E grade (-40C to +125C) makes the DSPIC33CK512MP305-E/PT appropriate for non-safety-critical automotive-adjacent subsystems such as auxiliary pump controllers, fan drives, and e-mobility accessory motors, where engine-bay or chassis temperatures exceed consumer limits. The 100 MHz core runs sensorless FOC for pumps and compressors, the high-resolution PWM suppresses audible switching noise, and 512 KB Flash holds fault logs plus OTA update images in the second panel. Integrated op amps condition phase-current shunts with external anti-aliasing filters. Designers must add external transient suppression per their own system requirements; this part is not itself AEC-Q100 qualified.
Recommended
Battery Management and Charging Systems
For Li-ion pack supervision and smart chargers, the DSPIC33CK512MP305-E/PT samples cell voltages and pack current with its 12-bit ADCs, computes state-of-charge algorithms using DSP MAC throughput, and drives charger PWM stages with high-resolution duty-cycle control. The 8 DMA channels time-synchronize current and voltage sampling to the switching waveform, improving coulomb-counting accuracy. Dual-panel Flash enables field-updatable charging profiles, and 64 KB RAM logs cell history for predictive maintenance. Charging-control firmware benefits from the 100 MIPS budget for model-based SOC estimation. Restraint: all analog inputs are bounded by the 3.0-3.6 V rail, so high-cell-count packs require resistive dividers and protection networks.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK512MP305-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK512MP305-I/PT | DSPIC33CK512MP605-I/PT | DSPIC33CK256MP605-E/PT | DSPIC33CK256MP205-E/PT | DSPIC33CK128MP205-E/PT |
|---|---|---|---|---|---|---|
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 512 KB | 512 KB | 512 KB | 256 KB | 256 KB | 128 KB |
| RAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| CPU Speed | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS |
| 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 | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| Dual-Panel Flash | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Extended -40C to +125C temperature grade in the same footprint (vs DSPIC33CK512MP305-I/PT)
- Double the program memory of the 256 KB siblings (vs DSPIC33CK256MP205-E/PT)
- Integrated op amps reduce external analog BOM (vs DSPIC33CK128MP205-E/PT)
Design Notes
The DSPIC33CK512MP305-E/PT requires a tightly regulated 3.0-3.6 V supply. Place a 0.1 uF ceramic capacitor at every VDD/VSS pin pair within 2 mm of the pins, plus one bulk 10 uF capacitor per supply domain. At 100 MHz with active PWM and DMA, core current peaks can exceed the average listed figure, so size the 3.3 V regulator with margin. Errata and current tables live in the device datasheet - verify IDD at your exact operating frequency before finalizing regulator selection.
The 48-TQFP (7x7) uses 0.5 mm pin pitch - specify a no-clean or water-washable solder paste and inspect with 10x magnification for bridging on the fine-pitch lands. Route the crystal/oscillator traces short and guard them with ground, since the PLL multiplies up to 100 MHz and radiates if the tank loop is large. Assign current-sense ADC inputs away from PWM-switched traces; the integrated op amp pins share functions with general I/O, so fix the multiplexing early in pin planning with MPLAB Code Configurator.
Do not exceed 3.6 V on any VDD pin - there is no 5 V tolerant mode on this family, and 5 V signals require level shifting. Partitioned dual-panel Flash changes the program memory map (single panel vs partitioned boot/secure panels); set the FBOOT configuration word deliberately, since an unintended partition halves executable code space. When switching from the -I to the -E grade, re-verify timing derating at 125C in the datasheet electrical tables rather than assuming identical timing margins.
Compliance Information
/PT suffix denotes lead-free RoHS-compliant TQFP packaging per Microchip packaging nomenclature. REACH, halogen-free and conflict-minerals declarations not present in the provided web data - request certificate from Microchip.
