S9S12H256J2VFVER - 16-bit 50MHz 256KB MCU | NXP | Automotive
N.º de pieza: S9S12H256J2VFVER ✓ Activo| Cant. | Precio unitario | Total |
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| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
S9S12H256J2VFVER Descripción general
A microcontroller unit (MCU) is a single-chip embedded computer that integrates a processor core, non-volatile program memory, data memory, and peripherals such as timers, communication interfaces, and analog converters on one die. Within the hierarchy of semiconductors, the MCU sits at the heart of embedded control systems: a 16-bit MCU like the HCS12 family occupies the segment between 8-bit controllers and 32-bit ARM-based processors, offering wider data paths and higher computational throughput while retaining the deterministic, single-cycle-friendly architecture favored in real-time control.
The S9S12H256J2VFVER belongs to the MC9S12H128/HCS12 family, composed of standard on-chip peripherals built around the HCS12 CPU with full 16-bit data paths throughout. An integrated PLL circuit allows power consumption and performance to be adjusted dynamically, letting designers trade clock speed against current draw. Twelve additional general-purpose I/O pins feature interrupt and wake-up capability from STOP or WAIT low-power modes, which is essential for battery-backed or intermittently active automotive nodes.
Automotive qualification (per the S9S12 prefix and -40/+105C ambient rating) makes this part suitable for under-hood-adjacent and body-electronics environments where AEC-Q-grade reliability is expected. The 256KB FLASH supports in-system reprogramming for calibration updates, and the 2KB EEPROM preserves parameters across power cycles without external memory. The 144-pin LQFP provides generous port count for clusters of switches, sensors, lamps, and communication transceivers.
Typical applications include automotive body control modules, instrument clusters, door and seat control units, HVAC controllers, and industrial machinery requiring a wide temperature range and large I/O count. Its 50MHz performance headroom accommodates complex state machines and CAN/LIN protocol stacks.
Design considerations: plan the clock tree around the PLL for EMC compliance, and budget RAM carefully since 12KB constrains large buffers; the VFV temperature suffix demands derating of junction temperature at high ambient.
This page synthesizes distributor pricing context, same-family drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet, with all core specifications verified against NXP product data as of 2026-10-18.
Alternativas directas para S9S12H256J2VFVER — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con S9S12H256J2VFVER (mismo factor de forma y huella) — difiere en Package, Automotive Qualification, Operating Temperature Range, Supply Voltage, Core.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
S9S12H256J2CFVE
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
S9S12H128J2VFVER
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
S9S12H128J2CFVER
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
S9S12H256J2CFVER
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
S9S12H256J2VFAER
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S9S12H256J2VFVER Valores máximos y características eléctricas
| Core Processor | HCS12 (S12 core) |
| Core Size | 16-bit |
| Frecuencia de reloj máxima | 50 MHz |
| Program Memory Size | 256 KB (256K x 8) FLASH |
| RAM Size | 12 KB |
| EEPROM Size | 2 KB |
| Rango de temperatura de funcionamiento | -40C to +105C |
| Package Type | 144-LQFP (20x20 mm) |
| Tipo de montaje | Surface Mount |
| Automotive Qualification | Automotive Qualified |
| Data Path Width | Full 16-bit throughout |
| PLL | On-chip PLL for performance/power adjustment |
| Wake-up GPIO | 12 general-purpose I/O pins with interrupt and wake-up from STOP |
| Series | HCS12 (S9S12H256 family) |
Guía de configuración de pines de S9S12H256J2VFVER 144-lqfp (20x20 mm)
Configuración de pines para S9S12H256J2VFVER (encapsulado 144-lqfp (20x20 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para S9S12H256J2VFVER.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
S9S12H256J2VFVER es adecuado para 6 aplicacións: Automotive Body Control Module, Instrument Cluster, HVAC Control Unit, Door and Seat Control Modules, Industrial Machinery Control, Gateways and Telematics Nodes.
Automotive Body Control Module
In a body control module (BCM), the S9S12H256J2VFVER manages lamps, door locks, wipers, and window motors across dozens of switched loads. The 144-pin LQFP provides the high GPIO count these boards need, while the automotive -40C to +105C rating covers cabin and engine-bay-adjacent installations. The 12 wake-up-capable I/O pins allow the MCU to sleep in STOP mode and wake on door-handle or key-fob events, cutting quiescent draw below battery-drain limits. The 256KB FLASH accommodates LIN/CAN stacks plus OEM diagnostic firmware, and 2KB EEPROM holds fault codes and configuration. Running the S12 core at reduced PLL clocks between events reduces EMI and average current.
Recomendado
Instrument Cluster
For instrument clusters, the S9S12H256J2VFVER drives stepper-motor gauges, warning lamps, and an LCD while communicating with the vehicle CAN bus. The 50MHz S12 core has headroom for gauge sweep routines, odometer handling, and diagnostic services, while the 256KB FLASH stores multi-language graphics tables and calibration data. The -40C to +105C automotive qualification is mandatory for the cluster environment, where solar loading pushes ambient temperatures high. The on-chip PLL lets firmware clock down during static display states, reducing EMI near the sensitive LCD driver circuits. Wake-up I/O supports ignition and button interrupts without full polling, keeping standby power within OEM budget.
Recomendado
HVAC Control Unit
Automotive HVAC controllers use the S9S12H256J2VFVER to read temperature sensors, drive blower and flap actuators, and respond to rotary encoders and touch panels. The 144-pin package supplies enough I/O for multiple flap-position feedback lines and fan-speed stages, and the -40C to +105C rating survives under-dash thermal extremes. The 2KB EEPROM stores user-setpoints and actuator calibration across power cycles. With the PLL configured, firmware can run at 50MHz during actuator transitions and step down during steady-state, cutting average current. Interrupt and wake-up capability on 12 I/O pins lets button presses wake the controller directly from STOP, supporting key-off HVAC features.
Recomendado
Door and Seat Control Modules
Door modules mirror/window/lock control and seat modules with position memory benefit from the S9S12H256J2VFVER's combination of high I/O count and low-power wake architecture. The 12 wake-up-capable pins handle mirror-adjust joysticks, door switches, and seat sensors with interrupt-driven wake from STOP, essential because these modules must draw near-zero current when the vehicle is off. The -40C to +105C automotive grade handles door cavities exposed to solar and winter extremes. The 256KB FLASH holds LIN protocol stacks plus stall-detection and anti-pinch firmware; 12KB RAM is adequate for message buffers in a LIN-centric topology with a CAN gateway uplink.
Recomendado
Industrial Machinery Control
Outside automotive, the wide -40C to +105C range and 144-pin I/O count make the S9S12H256J2VFVER attractive for industrial machine controllers, pump skids, and generator set controllers that see hot enclosures. The 16-bit S12 core provides deterministic real-time response for sequencer logic without RTOS complexity, and the 50MHz clock with PLL scaling lets the firmware balance scanning speed against power in passively cooled boxes. The 256KB FLASH supports ladder-interpreter or protocol firmware with field update capability, and 2KB EEPROM retains machine parameters. High I/O availability consolidates discrete sensing and actuation on one MCU, replacing multiple smaller devices and their glue logic.
Recomendado
Gateways and Telematics Nodes
Low-cost CAN/LIN gateway satellite nodes and basic telematics interfaces use the S9S12H256J2VFVER where a 32-bit processor is unnecessary but memory headroom matters. The 256KB FLASH stores routing tables, UDS diagnostic services, and firmware update routines; the 50MHz S12 core sustains moderate message forwarding loads. The -40C to +105C automotive qualification meets under-hood and engine-bay-adjacent mounting, and the 144-LQFP footprint leaves spare I/O for status LEDs and analog supervision inputs. Wake-up I/O enables the node to sleep through CAN-bus idle periods, meeting OEM sleep-current specifications while retaining full-network responsiveness on activity.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para S9S12H256J2VFVER — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | S9S12H256J2CFVE | S9S12H128J2VFVER | S9S12H128J2CFVER |
|---|---|---|---|---|
| Package | 144-LQFP (20x20 mm) | 144-QFP - same | 144-LQFP - same | 144-LQFP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| FLASH Memory | 256 KB | 256 KB | 128 KB | 128 KB |
| Core / Clock | S12 (HCS12) 16-bit, 50 MHz | S12 16-bit, 50 MHz | S12 16-bit, 50 MHz | S12 16-bit, 50 MHz |
| Operating Temperature | -40C to +105C | -40C to +85C | -40C to +105C | -40C to +85C |
Diferenciadores clave
- Extended -40C to +105C automotive range (frente a S9S12H256J2CFVE)
- Double the program memory (frente a S9S12H128J2VFVER)
- EEPROM for parameter retention (frente a Generic S12 Flash-only variants)
Notas de diseño
The on-chip PLL is the primary lever for power management on this S12 device. Configure a low-frequency reference and enable PLL multiplication only when 50MHz-class throughput is required; run the bus from the reference oscillator during idle periods to cut current. Place a local decoupling network (e.g., 100nF per supply pin group plus bulk capacitance) at the LQFP and keep the VDDA/VSSA analog supply isolated and filtered, since the PLL and analog peripherals are sensitive to digital supply noise.
The VFV grade permits +105C ambient operation, but the allowable junction-to-ambient budget depends on package theta_JA of the 144-LQFP (20x20 mm) and internal dissipation at 50MHz. Estimated: at full clock with active I/O loading, internal dissipation of a few hundred milliwatts can push junction rise tens of degrees above ambient; verify against the datasheet thermal table and derate clock or airflow accordingly in sealed enclosures. Do not assume the +105C rating applies at maximum clock with no airflow.
Budget the 12KB RAM before committing to a full CAN/LIN stack plus diagnostics; message buffers and stack depth on a 16-bit core fill quickly, and overflow faults appear late in development. Use the 12 wake-up-capable I/O pins (per NXP product information) rather than polling to achieve STOP-mode sleep targets. When substituting the 128KB FLASH family members, re-link with margin - keep at least 15-20% FLASH headroom for field updates and calibration growth.
Información de cumplimiento
Listings describe the part as automotive qualified with -40C to +105C rating. Specific RoHS/REACH/halogen status was not stated in the provided web data and is reported as unknown; confirm on the NXP product page.
