DSP56F826BU80E - 16-Bit 80MHz DSC 64KB Flash | NXP
Teilenummer: DSP56F826BU80E ✗ Abgekündigt| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $1 | $1,00 |
| 10 | $1 | $10,00 |
| 100 | $1 | $100,00 |
| 500 | $1 | $500,00 |
| 1.000 | $1 | $1.000,00 |
DSP56F826BU80E Übersicht
A Digital Signal Controller combines the multiply-accumulate processing power of a DSP with the peripheral set and control-oriented functionality of a microcontroller on a single die. Within the system hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP, making it a natural fit for motor control, digital power conversion, and embedded signal-processing nodes that also require real-time control loops.
Key features include hardware DO and REP loop instructions for zero-overhead looping, an MCU-friendly C-efficient instruction set, a quad timer module, a 4 MHz crystal oscillator with an integrated PLL including pre- and post-scalers, and serial connectivity via SCI (UART), SPI, and SSI (I2S-class) interfaces. The part is fabricated in high-density CMOS with 5V-tolerant, TTL-compatible digital inputs, allowing direct interfacing with legacy 5V logic on a 3.3V-domain board.
Architecturally, the unified DSP/MCU core executes both signal-processing math and control flow from a single instruction set, eliminating the need for a two-chip DSP-plus-MCU solution. The on-chip Flash supports in-circuit reprogramming, and the JTAG/OnCE debug interface provides real-time non-intrusive debugging and flash programming through standard tools.
Typical applications include industrial motor drives (BLDC, PMSM, AC induction), digital power supplies and inverters, and embedded control systems that require DSP-class filtering or FFT workloads alongside deterministic I/O timing. The quad timer and SSI make it well suited to multi-axis motion and audio-adjacent signal chains.
A key design consideration: the part is End of Life per NXP, so new designs should plan a migration path, and existing designs should secure lifetime-buy inventory. Verify the 80 MHz timing closure at the full core frequency rather than assuming derated operation.
This page synthesizes distributor pricing, drop-in alternatives, lifecycle notes, and practical design guidance not found in the manufacturer datasheet.
Drop-in-Alternativen für DSP56F826BU80E – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit DSP56F826BU80E (gleiche Bauform und Footprint) – abweichend in Debug Interface, Package, Core, Performance.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
DSP56F826BU80
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
DSP56F827FG80E
✅ Drop-In✓ Auf Lager
$29.25 / Stück
Datenblatt ansehen →DSP56F826BU80E Technische Daten
| Core | 56800E (16-bit) |
| Core Frequency | 80 MHz |
| Performance | 40 MIPS |
| Program Memory | 64KB (32K x 16) Flash |
| RAM Size | 4.5K x 16 |
| Datenbusbreite | 16-bit |
| Number of I/O | 46 |
| Timers | Quad Timer |
| Oscillator Type | External (4 MHz crystal with PLL) |
| Serial Interfaces | SCI, SPI, SSI |
| Debug Interface | JTAG/OnCE |
| I/O Tolerance | 5V-tolerant, TTL-compatible inputs |
| Process Technology | High-density CMOS |
| Gehäuse | 100-LQFP (14 x 14 mm) |
| Montageart | Surface Mount |
| Packaging | Tray |
DSP56F826BU80E 100-lqfp (14 x 14 mm) Pinbelegungsleitfaden
Pinbelegung für DSP56F826BU80E (100-lqfp (14 x 14 mm)-Gehäuse). Pin-Nummerierung, Funktionen und Anschlussdiagramme sind im Herstellerdatenblatt definiert. Entnehmen Sie diesem den genauen Footprint und Lötrichtlinien.
Keine detaillierten Pinbelegungsdaten verfügbar für DSP56F826BU80E.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
DSP56F826BU80E ist geeignet für 6 Anwendungs: Motor Control, Digital Power Conversion, Industrial Automation and Control, Embedded Signal Processing Nodes, Consumer Appliance Control, Legacy System Maintenance and Repair.
Motor Control
DSP56F826BU80E excels in motor control (BLDC, PMSM, AC induction) by combining 40 MIPS DSP performance for field-oriented control with the peripheral set of a microcontroller. The quad timer provides PWM generation and event capture channels required for commutation timing, while SCI, SPI, and SSI interfaces handle command communication and encoder/resolver feedback. The MCU-friendly, C-efficient instruction set allows the control loop firmware to be written primarily in high-level C, with hardware DO and REP loops accelerating the tight multiply-accumulate inner loops of current controllers. Operating at 80 MHz with 64KB Flash, the device has adequate headroom for sensorless algorithms incorporating observers and filtering. Its 5V-tolerant I/O simplifies interfacing with gate-driver and legacy-logic circuitry common in industrial drive boards.
Empfohlen
Digital Power Conversion
In digital power supplies, inverters, and PFC stages, the DSP56F826BU80E provides the deterministic multiply-accumulate throughput needed to close current and voltage loops at switching frequencies in the tens-to-hundreds of kilohertz range. At 80 MHz / 40 MIPS, the core executes Proportional-Integral and notch-filter computations within a single switching period, while the quad timer generates the complementary PWM edge timing. The 4.5K x 16 on-chip RAM holds loop state and lookup tables without external memory, reducing EMI and latency compared to off-chip RAM solutions. The JTAG/OnCE interface enables real-time tuning of control-loop coefficients during bring-up, a practical advantage when compensating a prototype converter. The device's CMOS process with 5V-tolerant inputs eases connection to 5V-referenced sensing and protection circuits.
Empfohlen
Industrial Automation and Control
For factory automation nodes, the DSP56F826BU80E acts as a unified controller replacing a discrete DSP-plus-MCU two-chip solution. The 46 GPIO lines interface directly with sensors, relays, and indicators; SCI provides RS-232/RS-485 field communication; and SPI connects to ADCs, DACs, and external EEPROM. The Time-of-Day module supports timestamped event logging, while the SSI serves synchronous data links to codec or serializer peripherals used in process monitoring. Because the instruction set is C-efficient, existing industrial control code ports with minimal rewrite, and hardware DO/REP loops handle cyclical polling and filtering without interrupt overhead. The 100-LQFP (14x14mm) surface-mount package suits dense industrial PCBs, and the 80 MHz core frequency leaves margin for future feature expansion within the same board footprint.
Empfohlen
Embedded Signal Processing Nodes
The DSP56F826BU80E serves as a compact embedded signal-processing node where FFT, FIR filtering, or adaptive algorithms must run alongside general control logic. The 56800E core's 16-bit architecture with hardware looping delivers efficient fixed-point arithmetic, and the single-cycle multiply-accumulate capability at 80 MHz provides roughly 40 million MAC-class operations per second - sufficient for moderate-rate audio-band or sensor signal chains. The SSI synchronous serial interface streams data to and from external converters or codecs with low software overhead, while SPI and SCI handle configuration and telemetry. On-chip 64KB Flash stores both application code and coefficient tables, and the 4.5K x 16 RAM buffers sample blocks. The JTAG/OnCE interface supports algorithm profiling during development, shortening tuning cycles for filter-heavy designs.
Empfohlen
Consumer Appliance Control
Consumer appliances with variable-speed motors - fans, compressors, washing machines, and power tools - benefit from the DSP56F826BU80E's blend of DSP math and MCU control in one device. The quad timer generates three-phase PWM waveforms for efficient motor drive, reducing acoustic noise and energy consumption versus fixed-speed designs. The C-efficient instruction set shortens firmware development cycles for appliance makers working under aggressive time-to-market pressure, and the 5V-tolerant TTL-compatible inputs connect directly to Hall sensors, user-interface buttons, and protection comparators without level shifting. The external 4 MHz crystal with integrated PLL keeps the bill of materials minimal. Note that with the part now End of Life, appliance designs should target the MC56F8xxx successors for new platforms.
Empfohlen
Legacy System Maintenance and Repair
Because the DSP56F826BU80E is End of Life, one of its most common contemporary uses is sustaining existing deployed systems: industrial drives, telecom line cards, and instrumentation still in service that were designed around the 56F826. The JTAG/OnCE programming interface allows field reprogramming of the 64KB Flash during repair, and the well-documented 56800E family manuals make replacement firmware maintenance straightforward for teams with archived source code. Stock such as the 7,040 units reported at Heisener supports repair pools and last-time-buys. When evaluating substitution during repair, engineers should confirm the exact suffix variant (the DSP56F826BU80 differs in specific parameters from the BU80E per FindIC comparison data) and re-verify 5V-tolerance and timing margins against the DSP56F826 datasheet before populating boards.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für DSP56F826BU80E – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | DSP56F826BU80 | DSP56F827FG80E |
|---|---|---|---|
| Package | 100-LQFP (14x14mm) | 100-LQFP (14x14mm) - same | 128-LQFP - different pin count |
| Brand | NXP Semiconductors | NXP Semiconductors (Freescale legacy) | NXP Semiconductors (Freescale legacy) |
| Core Architecture | 56800 16-bit DSC | 56800 16-bit DSC | 56800 16-bit DSC |
| Core Frequency | 80 MHz (40 MIPS) | 80 MHz | 80 MHz |
| Drop-in Compatibility | Reference part | High - same package, parameter differences to verify | Low - requires PCB layout change (128-LQFP) |
Wichtigste Unterscheidungsmerkmale
- Unified DSP+MCU in a single chip (vs. DSP56F826BU80)
- 5V-tolerant I/O on 3.3V core (vs. DSP56F827FG80E)
- Comprehensive serial peripheral set (vs. DSP56F827FG80E)
Designhinweise
The DSP56F826BU80E is officially End of Life per NXP's product page. Before committing a design or a repair batch, download NXP's Discontinuance and Replacement Product Change Notice for this part to confirm the last-order date and any recommended successor. For new designs, do not select this device - target the current MC56F8xxx generation instead. For sustaining designs, place a lifetime-buy with distributor stock (Heisener reported 7,040 pieces) before open-market-only pricing takes effect, and qualify any suffix variant substitution against your exact board timing and voltage requirements.
The 56F826's I/O pins are 5V-tolerant TTL-compatible on a 3.3V-compatible CMOS process, meaning inputs withstand up to 5.5V per the NXP datasheet. Note that 5V tolerance applies to inputs - output-high levels still swing to the 3.3V rail, so 5V CMOS logic receiving these signals requires VT-high thresholds compatible with 3.3V drive (TTL-threshold inputs, not 5V CMOS thresholds). Group fast-switching GPIO away from the crystal and PLL loop-filter traces, and keep the 4 MHz crystal traces short with guard ground to preserve PLL clock stability at the full 80 MHz core frequency.
For the 100-LQFP (14x14mm) package, use a standard 0.5 mm-pitch land pattern per the NXP footprint recommendation and tie all VDD/VSS pairs with 100 nF ceramic decoupling capacitors placed within 3 mm of each supply pin pair. The PLL requires its own clean analog supply and external loop-filter components per the DSP56F826 datasheet - route these away from switching-node or SCI/SPI clock lines. Provide a solid ground plane under the device; the JTAG/OnCE header should be a permanent 14-pin footprint on production boards to retain field flash-programmability of the 64KB on-chip Flash.
Compliance-Informationen
Compliance data not provided in verified web data. The NXP official product page includes an Environmental Quality section which should be consulted for RoHS/REACH status of this specific EOL part.
