DSPIC33CK256MP305-E/M7 - 16-bit 100MIPS DSC 256KB Flash | Microchip
Référence : DSPIC33CK256MP305-E/M7 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.2 | $6,20 |
| 10 | $5.58 | $55,80 |
| 100 | $4.95 | $495,00 |
| 500 | $4.45 | $2 225,00 |
| 1 000 | $4.02 | $4 020,00 |
DSPIC33CK256MP305-E/M7 Présentation
A digital signal controller combines the computational throughput of a digital signal processor with the peripheral integration and deterministic control of a microcontroller. Within the power-management hierarchy of embedded systems, the DSC sits above general-purpose MCUs for control loops that demand fast math: it integrates a DSP engine, high-speed PWM, and fast ADC sampling into one silicon die, making it the de-facto choice for closed-loop digital power and motor control.
Key features include the 100 MIPS dsPIC33C core with DSP instruction extensions and barrel shifter, 256 KB of dual-panel flash enabling live firmware updates, 64 KB of RAM for buffering and control-state data, three integrated operational amplifiers for current-sense signal conditioning, and 12-bit ADCs capable of sampling at up to 3.5 Msps in shared-core mode. Eight DMA channels offload data movement from the CPU, and a rich high-resolution PWM module supports complementary outputs with dead-time insertion.
The -E suffix denotes the extended operating temperature range of -40 C to +125 C, and the device is AEC-Q100 qualified for automotive applications. The dsPIC33CK family is also positioned by Microchip for Functional Safety (FuSa) development, supported by safety manuals and safety libraries.
Typical applications include PFC and LLC stages in digital power supplies, FOC motor control for industrial drives, automotive pumps and actuators, and high-performance sensing systems where fast ADC sampling and tight control-loop latency are critical.
Design consideration: the core supply is a single 3.0 V to 3.6 V rail; plan the power tree so the 100 MHz core clock is not derived before the supply is stable, and verify PWM dead-time calibration at the minimum load condition.
This page synthesizes distributor inventory data, same-package alternatives, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour DSPIC33CK256MP305-E/M7 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec DSPIC33CK256MP305-E/M7 (même facteur de forme et même empreinte) — différant par ADC Resolution, Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
DSPIC33CK256MP305T-E/M7
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
DSPIC33CK256MP305T-I/M7
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
DSPIC33CK256MP305-H/M7
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
DSPIC33CK256MP305-I/M7
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$3.35 / unité
Voir la fiche technique →DSPIC33CK128MP305-E/M7
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
DSPIC33CK256MP305-E/M7 Valeurs maximales et caractéristiques électriques
| Core Architecture | 16-bit dsPIC33C DSC, single core |
| Fréquence d'horloge maximale | 100 MHz |
| Processing Performance | 100 MIPS |
| Program Memory (Flash) | 256 KB (256K x 8), dual panel |
| RAM | 64 KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Plage de température de fonctionnement | -40 C to +125 C (extended, -E suffix) |
| Boîtier | 48-VQFN (6x6 mm), M7 |
| Type de montage | Surface Mount |
| ADC Resolution | 12-bit |
| Integrated Op-Amps | Yes (3 on-chip op-amps) |
| PWM | High-resolution PWM with complementary outputs |
| DMA Channels | 8 |
| Automotive Qualification | AEC-Q100 qualified |
| Functional Safety Support | Yes (FuSa variant per Microchip classification) |
Guide de configuration des broches du DSPIC33CK256MP305-E/M7 48-vqfn (6x6 mm), m7
Configuration des broches du DSPIC33CK256MP305-E/M7 (boîtier 48-vqfn (6x6 mm), m7). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour DSPIC33CK256MP305-E/M7.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
DSPIC33CK256MP305-E/M7 convient pour 6 applications: Digital Power Supplies (PFC / LLC), FOC Motor Control (Industrial Drives), Automotive Body and Pump Control, Solar and Renewable Energy Inverters, Advanced Sensing and Control Systems, Embedded Control and IoT Edge Nodes.
Digital Power Supplies (PFC / LLC)
The DSPIC33CK256MP305-E/M7 is purpose-built for digital power conversion: its 100 MHz (100 MIPS) dsPIC33C core closes voltage- and current-mode loops fast enough for PFC and LLC stages switching at 100 kHz and above. The 12-bit ADC samples inductor current and output voltage at high rates, while 8 DMA channels stream results to RAM without CPU intervention, minimizing control-loop jitter that would otherwise degrade regulation. The high-resolution PWM module generates complementary outputs with precise dead-time insertion for half-bridge and full-bridge topologies. On-chip op-amps can amplify shunt-current signals, removing external amplifier stages. Place the controller between the sense divider network and the gate-driver inputs; unlike analog control, firmware enables adaptive compensation and soft-start profiles.
Recommandé
FOC Motor Control (Industrial Drives)
For field-oriented control of PMSM and BLDC motors, the DSPIC33CK256MP305-E/M7 provides the DSP multiply-accumulate throughput, barrel shifter, and deterministic interrupt latency needed for 20 kHz+ current loops on a single 100 MIPS core. Three on-chip op-amps condition low-side shunt currents, reducing BOM cost versus external amplifiers, while the 12-bit ADC performs simultaneous phase-current sampling synchronized to PWM center alignment. The high-resolution PWM peripheral produces the six complementary gate signals with sub-nanosecond effective resolution for dead-time control. The 256 KB dual-panel flash stores FOC algorithms plus communication stacks with headroom for field updates via live update. The -40 C to +125 C extended range suits drive electronics mounted near motors with limited airflow.
Recommandé
Automotive Body and Pump Control
As an AEC-Q100-qualified device with an extended -40 C to +125 C operating range, the DSPIC33CK256MP305-E/M7 addresses automotive actuator control: coolant pumps, fuel pumps, wiper systems, and HVAC blowers. Microchip classifies the dsPIC33CK family for Functional Safety (FuSa) development, providing safety documentation that supports ISO 26262-aligned workflows. The 256 KB flash accommodates firmware including diagnostics and CAN communication layers, and the 64 KB RAM buffers CAN frames and control state. Deterministic 100 MIPS execution handles sensorless motor algorithms without floating-point coprocessors. Design consideration: validate VDD transient behavior against load-dump conditions in the module power supply, since the MCU core is specified for a strict 3.0 V to 3.6 V window.
Recommandé
Solar and Renewable Energy Inverters
Grid-tied microinverters and solar optimizers benefit from the DSPIC33CK256MP305-E/M7's ability to run MPPT algorithms and grid-current control loops concurrently on one core. The 100 MHz clock provides the arithmetic headroom for sequential MPPT perturbation plus inner current loops at high switching frequency, while the 12-bit ADC samples panel voltage/current and grid feedback with the DMA engine removing transfer latency. High-resolution PWM synthesizes the modulation for interleaved boost and inverter stages with tight phase matching. The 256 KB dual-panel flash supports certified grid-code firmware plus field updates. The extended temperature range covers outdoor enclosures, and the 48-pin VQFN (6x6 mm) keeps controller area minimal in power-density-constrained designs.
Recommandé
Advanced Sensing and Control Systems
High-speed data acquisition nodes use the DSPIC33CK256MP305-E/M7 where a general-purpose MCU is too slow but a standalone DSP is too complex. The 12-bit ADC, driven by the 100 MIPS core and 8 DMA channels, supports continuous conversion with real-time thresholding and digital filtering in firmware. Integrated op-amps amplify bridge or shunt sensor outputs directly, and the DSP instruction set executes FIR/IIR filtering efficiently for vibration, acoustic, or power-quality analysis. The 64 KB RAM sustains long capture buffers for burst analysis, and 256 KB flash stores calibration tables and multiple acquisition profiles. Communication peripherals (UART, SPI, I2C) stream results to host systems, while the -E grade tolerates industrial cabinet temperatures up to +125 C.
Recommandé
Embedded Control and IoT Edge Nodes
For intelligent edge nodes that combine local closed-loop control with network connectivity, the DSPIC33CK256MP305-E/M7 offers a single-chip solution: the 100 MIPS core executes both the control application and a communication stack, while 256 KB of dual-panel flash allows OTA firmware updates without a external memory chip. Multiple UART/SPI/I2C instances interface with radio modules and sensors, and PWM plus 12-bit ADC channels drive local actuators and feedback. The 48-pin VQFN (6x6 mm) fits compact node PCBs, and the extended -40 C to +125 C range suits unconditioned environments. Note that the device has no on-chip radio - pair it with an external connectivity module for wireless designs, keeping real-time control entirely on the dsPIC core.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour DSPIC33CK256MP305-E/M7 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | DSPIC33CK256MP305T-E/M7 | DSPIC33CK256MP305T-I/M7 | DSPIC33CK256MP305-H/M7 | DSPIC33CK128MP305-E/M7 |
|---|---|---|---|---|---|
| Package | 48-VQFN (6x6 mm) | 48-VQFN (6x6 mm) - same | 48-VQFN (6x6 mm) - same | 48-VQFN (6x6 mm) - same | 48-VQFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 256 KB dual-panel | 256 KB dual-panel | 256 KB dual-panel | 256 KB dual-panel | 128 KB (-50%) |
| Core Performance | 16-bit, 100 MHz, 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS |
Principaux différenciateurs
- Extended temperature range for harsh environments (vs DSPIC33CK256MP305T-I/M7)
- Maximum code space in the 48-pin family (vs DSPIC33CK128MP305-E/M7)
- Production-ready reel packaging (vs DSPIC33CK256MP305T-E/M7)
Notes de conception
The DSPIC33CK256MP305-E/M7 requires a strict 3.0 V to 3.6 V supply (nominal 3.3 V). At 100 MHz the core draws transient currents on every clock edge, so place a 0.1 uF ceramic capacitor at each VDD pin plus at least 4.7 uF of bulk capacitance near the device. Estimated: a poorly decoupled 3.3 V rail with 0.5 ohm effective trace inductance can see supply dips sufficient to trigger brown-out resets during simultaneous ADC and PWM activity; verify with an oscilloscope at the pin, not at the regulator output.
For motor-control and digital-power layouts, keep the current-sense shunt-to-op-amp traces short, differential, and away from PWM gate-drive switching loops. Use the on-chip op-amps in the shortest possible loop to the ADC sampling point. Ground the VQFN exposed pad with a via array to the ground plane - this is the primary thermal and ground return path for the 48-pin 6x6 mm package. Follow the PCB layout guidelines in the dsPIC33CK family datasheet regarding crystal placement and PPS-routed peripheral pin assignments before final routing.
Estimated: at +125 C ambient (the -E grade limit) with a typical active current in the tens-of-milliamps range, self-heating through the VQFN-48 thermal resistance raises junction temperature only modestly, but designs driving multiple PWM outputs into large gate-driver loads should verify junction temperature. Use the exposed-pad via array (4x4 grid of 0.3 mm vias) and at least 2 square cm of copper pour to keep theta_JA low; this is a recommendation based on the package construction, and the exact theta_JA value should be taken from the Microchip package outline documentation.
Do not assume pin functions: the dsPIC33CK uses Peripheral Pin Select (PPS), so many pins are multiplexed and the final function is set in firmware. Lock the PPS mapping before releasing PCB artwork, and reserve test points on at least two spare pins. When substituting the 128 KB DSPIC33CK128MP305-E/M7 for cost reduction, verify that your firmware image plus bootloader fits within 128 KB with margin - live-update dual-panel schemes consume half the flash panel for the update bank.
Informations de conformité
AEC-Q100 automotive qualification and Functional Safety (FuSa) classification confirmed by DigiKey product listings (2026-09-23). RoHS/REACH status not stated in the retrieved web data - confirm on the Microchip product page before regulatory sign-off.
