MC9S12XD256VAA - 80MHz 256KB Flash 80-QFP MCU | NXP
Référence : MC9S12XD256VAA ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $22.8639 | $22,86 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1 000 | $0 | $0,00 |
MC9S12XD256VAA Présentation
A microcontroller is a programmable semiconductor device that integrates a processor core, memory, and peripherals such as timers, communications controllers, analog interfaces, and interrupt logic. The HCS12X family extends the HCS12 instruction set with enhanced addressing and an improved execution core, making MC9S12XD256VAA suitable for real-time control systems that require deterministic peripheral access and substantial embedded flash.
Verified distributor information identifies a 256 KB flash configuration, 80 MHz operating speed, 16-bit HCS12X classification, and an 80-QFP package. Additional search data reports 14 KB of RAM, 119 I/O ports, and a 2.35 V to 2.75 V core-supply range for related indexed records, although those details should be confirmed against the exact NXP datasheet before design release.
The device can serve as the central controller in industrial automation, automotive body electronics, motor control, communications gateways, and embedded instrumentation. Its 256 KB program memory accommodates larger control applications than many small 8-bit MCUs while retaining a mature real-time architecture. The 80 MHz core can execute control logic and service multiple peripherals, but final firmware performance depends on the selected clock configuration, memory wait states, peripherals, and toolchain settings.
The 80-QFP footprint requires careful PCB layout and thermal management. Designers should follow the manufacturer package drawings for pad dimensions, pin numbering, exposed-pad requirements, and recommended land patterns. Because the supplied data does not provide a complete verified pinout, thermal resistance, or operating-temperature range, those values are intentionally marked for validation rather than guessed.
This product page combines verified distributor specifications, package information, sourcing context, and application guidance. It does not substitute for the NXP datasheet, reference manual, errata, or device-specific qualification documents when those documents are required for a production design.
Alternatives de remplacement direct pour MC9S12XD256VAA — 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 MC9S12XD256VAA (même facteur de forme et même empreinte) — différant par Package, Program Memory (Flash), RAM, ADC, Core Architecture.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC9S12XDT256VAA
✅ Remplacement direct✓ En stock
$9.05 / unité
Voir la fiche technique →MC9S12XA512CAA
✅ Remplacement direct✓ En stock
$15.2 / unité
Voir la fiche technique →MC9S12XD64CAA
✅ Remplacement direct✓ En stock
$9.65 / unité
Voir la fiche technique →MC9S12XD256VAA Valeurs maximales et caractéristiques électriques
| Product Type | 16-bit HCS12X microcontroller |
| Maximum Clock Speed | 80 MHz |
| Flash Memory | 256 KB (256K x 8) |
| RAM Memory | 14 KB |
| Core Architecture | HCS12X |
| Instruction Set | 16-bit CISC |
| Boîtier | 80-QFP (14 x 14 mm) |
| Number of I/O Ports | 119 |
| Core Supply Voltage | 2.35 V to 2.75 V |
| ADC Resolution | 10-bit |
| Supply Voltage Range | 2.5 V / 5 V |
| Type de montage | Surface mount |
| Manufacturer | NXP Semiconductors |
| Statut du cycle de vie | NRND |
| DigiKey Product Classification | HCS12X HCS12X microcontroller IC |
| Mouser Description | 16-bit MCU, S12XD, HCS12X core |
| LCSC Availability Listing | In stock |
Guide de configuration des broches du MC9S12XD256VAA 80-qfp (14 x 14 mm)
Configuration des broches du MC9S12XD256VAA (boîtier 80-qfp (14 x 14 mm)). 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 MC9S12XD256VAA.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MC9S12XD256VAA convient pour 6 applications: Industrial Automation Controller, Automotive Body Electronics, Motor Control and Actuator Systems, Communications Gateway Equipment, Embedded Instrumentation and Measurement, Real-Time HMI and Control Panels.
Industrial Automation Controller
The MC9S12XD256VAA fits industrial automation controllers that combine real-time sequencing, peripheral interrupts, and firmware requiring more memory than a small 8-bit MCU. Its verified 80 MHz HCS12X core provides processing headroom for control loops, while 256 KB flash supports application logic, configuration, diagnostics, and communication routines. The 80-QFP package provides a defined surface-mount integration path, although the final board design must follow NXP land-pattern and power-distribution guidance. Engineers should confirm the exact timer, serial-interface, analog, and I/O requirements because the supplied data does not enumerate the complete peripheral set.
Recommandé
Automotive Body Electronics
MC9S12XD256VAA is applicable to body-electronics and vehicle-control modules where a deterministic 16-bit architecture, broad I/O capability, and embedded flash are useful. The reported 119 I/O ports can support distributed sensing, switch inputs, and actuator-control interfaces, while the 80 MHz HCS12X core can handle multiple interrupt-driven tasks. The device is listed by NXP as NRND, so it should not be assumed to be the preferred choice for a new automotive platform without lifecycle and qualification review. Confirm temperature grade, automotive qualification, electrical limits, and the exact package pinout before design freeze.
Recommandé
Motor Control and Actuator Systems
The MC9S12XD256VAA can serve as the control processor in motor-control and actuator systems where timing, peripheral responsiveness, and embedded program memory are important. An 80 MHz core can execute state-machine and control-loop software, while the 16 KB RAM figure reported by an indexed distributor result provides working memory for control variables and buffers. The device does not replace a dedicated motor driver; it complements one by generating control commands and managing feedback. Power-stage timing, protection shutdown, analog sensing, and fault handling must be validated against the complete datasheet and application requirements.
Recommandé
Communications Gateway Equipment
MC9S12XD256VAA is suitable for embedded communications equipment that needs a dedicated real-time control processor alongside memory for protocol and configuration code. The verified 256 KB flash capacity is useful for firmware storage, boot handling, diagnostics, and protocol tables, while the 80 MHz HCS12X core can service message-processing and control tasks. Package-level integration requires careful assignment of communication signals, debug access, clocking, and supply rails. Because the supplied sources do not identify specific communication peripherals or transceiver MPNs, engineers should validate the required CAN, serial, Ethernet, or other interface functions separately rather than infer them from the family name.
Recommandé
Embedded Instrumentation and Measurement
The MC9S12XD256VAA can support embedded instrumentation where a microcontroller must acquire digital or analog control inputs, execute measurement logic, and present system status through local interfaces. The reported 10-bit ADC feature in search results provides a concrete starting point for sensor conditioning designs, although input-channel count and electrical ranges must be confirmed from the manufacturer documentation. With 256 KB flash, the device can hold calibration tables and application firmware, but measurement accuracy depends on analog layout, reference quality, grounding, and calibration strategy. Use the exact data sheet and reference manual for peripheral multiplexing and accuracy specifications.
Recommandé
Real-Time HMI and Control Panels
MC9S12XD256VAA is applicable to compact human-machine-interface and control-panel electronics where a microcontroller must scan inputs, update displays, manage alarms, and execute application logic. Its 80 MHz HCS12X core can support event-driven control tasks, and the reported 119 I/O ports may help connect switches, indicators, and interface signals. The 80-QFP package offers a defined leaded footprint for multilayer PCB assembly. Display drivers, keypad scanning, communication isolation, ESD protection, and EMC requirements are application-specific and are not fully specified in the supplied sources, so the designer must verify them before selecting supporting components.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9S12XD256VAA — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC9S12XDT256VAA | MC9S12XA512CAA | MC9S12XD64CAA |
|---|---|---|---|---|
| Core | HCS12X, 16-bit | HCS12X, 16-bit family candidate | HCS12X, 16-bit | HCS12X, 16-bit family candidate |
| Flash Memory | 256 KB | 256 KB indicated by part-family comparison | 512 KB | 64 KB |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
Principaux différenciateurs
- Higher flash capacity than the 64 KB family candidate (vs MC9S12XD64CAA)
- Lower flash capacity and memory footprint than the 512 KB comparison candidate (vs MC9S12XA512CAA)
- Established 80 MHz speed in the S12XD comparison family (vs MC9S12XDT256VAA)
Notes de conception
Use the official NXP 80-QFP land pattern and package drawing rather than reconstructing pad dimensions from distributor listings. Confirm pin numbering, pin multiplexing, power pins, ground distribution, and exposed-pad requirements before routing. The verified data identifies the package as 80-QFP at 14 x 14 mm, but it does not provide a complete pin map, so do not release a footprint or schematic symbol until the exact datasheet has been reviewed.
Plan the supply rails and decoupling around the exact NXP operating limits. The search data reports a 2.35 V to 2.75 V core-supply range and also lists a 2.5 V / 5 V device classification, so the meaning of each voltage must be reconciled against the official data sheet. Place required bulk and bypass capacitors close to the appropriate power pins, provide clean return paths, and verify startup, reset, and power-supply sequencing behavior in hardware.
Do not assume that a same-family or same-package device is automatically interchangeable. MC9S12XA512CAA is listed with the same 80 MHz speed and 80-QFP format but 512 KB flash, while MC9S12XD64CAA carries a 64 KB designation. Memory map, peripheral multiplexing, electrical limits, temperature grade, and pin functions must be compared before substitution. Use the exact data sheets, reference manuals, errata, and a hardware validation plan.
For real-time embedded designs, isolate noisy switching and high-current paths from sensitive analog and clock signals. Route reset and debug access for manufacturing and field diagnostics, maintain continuous ground references under the QFP, and check all external component placements against the device's recommended application circuits. Because the supplied data does not identify the complete peripheral set or package thermal details, obtain those values from NXP before finalizing signal-integrity or thermal analysis.
Informations de conformité
The supplied search results do not include verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. The automotive application wording in this page is an engineering use-case discussion, not an automotive qualification claim.
