DSPIC33EP256MU814-E/PH - 256KB 60MHz DSC USB 144-TQFP | Microchip
Référence : DSPIC33EP256MU814-E/PH ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $10.51 | $10,51 |
| 10 | $9.72 | $97,20 |
| 25 | $9.25 | $231,25 |
| 100 | $8.6 | $860,00 |
| 1 000 | $7.95 | $7 950,00 |
DSPIC33EP256MU814-E/PH Présentation
A digital signal controller is a hybrid class of processor that merges the computational power of a digital signal processor (DSP) with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy of embedded systems, the DSC sits above general-purpose MCUs for math-intensive control loops and below full DSP-plus-MCU two-chip solutions, offering a single-chip path for motor control, digital power conversion and industrial sensing.
Key features of the MU814 variant include 85.5K x 24-bit Flash words, USB 2.0 full-speed device support, dual CAN 2.0B modules, multiple UART/SPI/I2C ports, a 16-bit sigma-delta-free high-speed ADC subsystem, and the motor-control PWM with dead-time insertion that defines the dsPIC33E motor-control family. Barrel shifter and DSP multiply-accumulate instructions accelerate filters and transforms.
Architecturally, the dsPIC33E core executes an enhanced 16-bit instruction set with hardware DSP engine (17x17 multiplier, dual 40-bit accumulators), zero-overhead DO and REPEAT loops, and a programmable PLL clock system that derives the 60 MHz device operation from a low-frequency crystal. Extended-temperature qualification (the -E suffix) and AEC-Q100 automotive usage reported by distributors make it suitable for harsh environments.
Typical applications include dual-axis brushless DC and PMSM motor drives, digital power supplies and inverters, automotive body and powertrain auxiliary systems, and industrial automation nodes that need both USB connectivity and deterministic control loops.
Design consideration: the device operates at 3.0 V to 3.6 V, so level shifting is required for 5 V peripherals; budget the 144-pin TQFP thermal and layout footprint early, and follow the Microchip reference manual clock-routing guidance for USB and CAN coexistence.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with data verified as of 2026-09-24.
Alternatives de remplacement direct pour DSPIC33EP256MU814-E/PH — 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 DSPIC33EP256MU814-E/PH (même facteur de forme et même empreinte) — différant par Package, USB, Core Architecture, Operating Temperature, RAM.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
DSPIC33EP256MU814-I/PH
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$11.75 / unité
Voir la fiche technique →DSPIC33EP256MU814-H/PH
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
DSPIC33EP512MU814-E/PH
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$13.2 / unité
Voir la fiche technique →DSPIC33EP512MU814-I/PH
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →DSPIC33EP512MU814-H/PH
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
DSPIC33EP256MU814-E/PH Valeurs maximales et caractéristiques électriques
| Core Architecture | 16-bit dsPIC33E DSC |
| CPU Speed | 60 MHz |
| Core Performance | Up to 70 MIPS (family rating) |
| Program Memory (Flash) | 256 KB (85.5K x 24-bit words) |
| RAM | 28 KB |
| Tension d'alimentation | 3.0 V to 3.6 V |
| USB | USB 2.0 Full-Speed Device |
| CAN Modules | 2 x CAN 2.0B |
| Boîtier | 144-TQFP (16x16 mm), 0.4 mm pitch |
| Température de fonctionnement | -40C to +125C |
| Qualification | Automotive, AEC-Q100 usage reported by distributor |
| Type de montage | Surface Mount |
| DSP Engine | 17x17 multiplier, dual 40-bit accumulators, barrel shifter |
| Peripheral Highlights | High-speed PWM, multiple UART/SPI/I2C |
| Series | dsPIC33EP256MU8xx (Motor Control family) |
| Statut RoHS | unknown |
Guide de configuration des broches du DSPIC33EP256MU814-E/PH 144-tqfp (16x16 mm), 0.4 mm pitch
Configuration des broches du DSPIC33EP256MU814-E/PH (boîtier 144-tqfp (16x16 mm), 0.4 mm pitch). 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 DSPIC33EP256MU814-E/PH.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
DSPIC33EP256MU814-E/PH convient pour 6 applications: Dual-Axis BLDC/PMSM Motor Control, Digital Power Supplies and Inverters, Automotive Auxiliary and Body Systems, Industrial Automation and PLC I/O Nodes, USB-Connected Test and Measurement Instruments, Embedded IoT Gateways with Multiple Buses.
Dual-Axis BLDC/PMSM Motor Control
The DSPIC33EP256MU814-E/PH was explicitly designed as a dual motor-control DSC: its high-speed PWM modules with independent dead-time insertion, complementary outputs and fault inputs can drive two three-phase inverters from one chip. The 60 MHz dsPIC33E core executes field-oriented control (FOC) loops with its 17x17 hardware multiplier and DSP MAC instructions at up to 70 MIPS, sustaining loop rates well above the electrical frequency of typical BLDC and PMSM machines. Encoder, resolver or Hall interfaces map onto the many 144-pin I/O. Place the controller between gate-driver ICs and the feedback front end; the trade-off is added software complexity versus a dedicated motor ASIC, compensated by full algorithm flexibility and firmware upgradability in the field.
Recommandé
Digital Power Supplies and Inverters
Digital switching power supplies, solar micro-inverters and UPS stages benefit from the DSC's deterministic DSP math and high-resolution PWM. The dsPIC33EP256MU814 executes voltage-mode or current-mode compensation loops using fast ADC sampling synchronized to the PWM module, achieving sub-cycle response that analog controllers approximate with external error amplifiers. USB and dual CAN 2.0B modules provide PMBus-style supervision and grid communication without a second controller. Designers typically clock the PWM at hundreds of kHz with the 60 MHz core closed-loop bandwidth limited by ADC conversion and ISR overhead. The 256 KB Flash accommodates full state machines, instrumentation logging and bootloaders, while the extended -40C to +125C rating suits outdoor and industrial power enclosures.
Recommandé
Automotive Auxiliary and Body Systems
Distributor data (Hotenda) classifies this part under Automotive with AEC-Q100 usage, and the -E/PH suffix guarantees -40C to +125C operation, matching under-hood-adjacent zones such as pumps, fans, throttle actuators and lighting control. The dual CAN 2.0B interfaces connect directly to vehicle buses (via 3.3 V-compatible CAN transceivers) for OBD and body-network communication, while the DSP engine runs sensor fusion or motor position estimation. Firmware in the 256 KB Flash can host dual-bank bootloaders for OTA-style updates over CAN. For production automotive programs, confirm PPAP documentation and qualification grade with Microchip; distributor summaries are an indicator, not a substitute for the official reliability report.
Recommandé
Industrial Automation and PLC I/O Nodes
Factory automation nodes need both deterministic control and industrial connectivity, exactly the combination the MU814 delivers: multiple UART/SPI/I2C ports plus dual CAN for fieldbus, and a 70 MIPS DSP core for predictive-maintenance vibration analysis or sensor signal conditioning with FIR/IIR filters. The 144-pin count exposes abundant remappable I/O for relay banks, encoder inputs and analog front ends, letting one DSC replace an MCU-plus-FPGA or MCU-plus-DSP two-chip stack. Its 256 KB Flash supports protocol stacks and local HMI buffers, while the extended temperature range covers panel-mounted enclosures without active cooling. Designers should budget code space carefully if running USB, CAN stacks and complex filters concurrently.
Recommandé
USB-Connected Test and Measurement Instruments
Handheld and bench instruments benefit from the USB 2.0 full-speed device module: the DSC enumerates as a CDC, HID or vendor-specific device directly to a PC with no external USB controller, while the DSP core performs FFTs, averaging and calibration math on captured signals. The 28 KB RAM buffers ADC streams and USB endpoint data concurrently. Example products include data loggers, sensor analyzers and motor diagnostic tools where the same chip that processes signals also handles the USB protocol layer. The 3.0 V to 3.6 V rail is bus-powered friendly through an LDO from the 5 V VBUS line. The 144-TQFP footprint suits instruments where board area is less constrained than cost.
Recommandé
Embedded IoT Gateways with Multiple Buses
Industrial IoT gateways often must bridge CAN, RS-485-class UART links and USB simultaneously; the dsPIC33EP256MU814 provides all of these on-chip. Its dual CAN 2.0B modules terminate two fieldbus segments, the USB module connects upward to a host or modem, and multiple UARTs serve legacy sensors, all coordinated by the 60 MHz core running protocol translation in the 256 KB Flash. The DSP engine additionally preprocesses sensor data (filtering, averaging, feature extraction) before uplink, reducing radio data volume. The -E extended temperature rating suits unconditioned outdoor cabinets. A design tip: reserve Flash headroom of at least 25% for OTA firmware updates and protocol stack growth over the product lifetime.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour DSPIC33EP256MU814-E/PH — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | DSPIC33EP256MU814-I/PH | DSPIC33EP512MU814-E/PH | DSPIC33EP256MU810T-I/PF |
|---|---|---|---|---|
| Package | 144-TQFP (16x16 mm) | 144-TQFP (16x16 mm) - same | 144-TQFP (16x16 mm) - same | 100-TQFP - different pin count |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 256 KB (85.5K x 24) | 256 KB (85.5K x 24) | 512 KB (171K x 24) | 256 KB |
| CPU Speed | 60 MHz | 60 MHz | 60 MHz | 60 MHz |
| Operating Temperature | -40C to +125C (-E) | -40C to +85C (-I) | -40C to +125C (-E) | -40C to +85C (-I) |
| USB / CAN | USB FS + 2x CAN 2.0B | USB FS + 2x CAN 2.0B | USB FS + 2x CAN 2.0B | USB FS + 2x CAN 2.0B |
| Pin Count | 144 | 144 | 144 | 100 |
Principaux différenciateurs
- Extended -40C to +125C temperature range in a standard catalogue part (vs DSPIC33EP256MU814-I/PH)
- Maximum Flash headroom without footprint change (vs DSPIC33EP512MU814-E/PH)
- Highest I/O count in the MU family branch (vs DSPIC33EP256MU810T-I/PF)
Notes de conception
The device requires a 3.0 V to 3.6 V supply (nominal 3.3 V). Decouple every VDD/VSS pin pair with 0.1 uF ceramics placed within 2 mm of the pins, plus at least 10 uF of bulk capacitance per supply domain. Do not omit the VDDCORE capacitor required by the internal regulator - its value is specified in the datasheet and omitting it causes brown-out resets under load transients. Estimated: with typical 100 mA core operation, a 3.3 V/500 mA LDO provides comfortable margin including USB transceiver load.
The 144-pin TQFP with 0.4 mm lead pitch requires careful fan-out: use 0.15 mm trace width with 0.15 mm clearance under the leads and consider a 4-layer stack with a solid ground plane for USB and CAN signal integrity. Keep the USB D+/D- pair length-matched and 90-ohm differential impedance. Crystal layout must be tight (short traces, guard ring to ground) because the PLL multiplies the crystal frequency up to 60 MHz and jitter there propagates to the USB and PWM modules.
Two frequent mistakes with the MU814: (1) assuming pin compatibility with the MU810 - the 100-pin and 144-pin parts share peripherals but not footprint or pinout, so BOM substitution across them is impossible without a PCB respin; (2) ignoring Peripheral Pin Select (PPS) configuration - many I/O are remappable, and ports left in default state can cause peripheral conflicts at boot. Always initialize PPS registers before enabling communication modules, and verify temperature-suffix needs early: the -E grade (-40C to +125C) is priced and stocked differently from -I parts.
Informations de conformité
Hotenda listing reports 'Automotive, AEC-Q100' usage and 3.3V operation. RoHS/REACH status not stated in provided web data - confirm on the Microchip product page.
