S912XEQ512J2 - 16-bit 50MHz 512KB Flash MCU | NXP
N.º da peça: S912XEQ512J2 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $9.23 | $9,23 |
| 10 | $8.55 | $85,50 |
| 100 | $7.9 | $790,00 |
| 500 | $7.3 | $3.650,00 |
| 1.000 | $6.85 | $6.850,00 |
S912XEQ512J2 Visão geral
A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals on one die, forming the complete embedded computing element of an electronic system. Within the hierarchy of embedded processors, 16-bit MCUs such as the S12XE family sit between 8-bit devices and 32-bit application processors, offering a well-understood single-chip architecture that remains popular in automotive body electronics, gateway modules, and industrial control.
Key features of the S912XEQ512J2 include the enhanced S12X core with an XGATE co-processor concept in the HCS12X architecture for offloading interrupt handling, 512 KB of Flash program memory, 50 MHz bus operation, and automotive qualification per NXP's S12XE product data. Ordering suffixes define temperature grade and packaging: for example, S912XEQ512J2CAG is rated -40 to +85 C in QFP-144, while S912XEQ512J2MAL extends to -40 to +125 C in QFP-112.
Technically, the HCS12X generation evolved from the Freescale (now NXP) HCS12 architecture, adding a more efficient instruction pipeline and peripheral set while preserving ease of single-supply 5V operation and on-chip flash programming that made the S12 family an industry workhorse for in-vehicle modules.
Typical applications include automotive body control modules, door and seat control units, in-vehicle networking gateways handling CAN/LIN communication, and industrial control systems where a rugged 16-bit MCU with large embedded Flash is preferred.
Design consideration: always match the full ordering-part suffix (temperature range, package, packing) to your environment; the 144-pin J2 variant and 112-pin M variant are not footprint interchangeable.
This page synthesizes distributor pricing from Octopart, LCSC, DigiKey and JLCPCB, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para S912XEQ512J2 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com S912XEQ512J2 (mesmo formato e footprint) — diferindo em Operating Temperature, Package, Core Processor, RoHS Status, Timers.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
S912XET512J2VAGR
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$1 / unidade
Ver ficha técnica →S912XEQ512J2CAG
✅ Drop-In✓ Em estoque
Consulte o preço
S912XEQ512J2CAL
✅ Drop-In✓ Em estoque
$10.8 / unidade
Ver ficha técnica →S912XEG384J2VAL
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$17.8 / unidade
Ver ficha técnica →S912XEG256J2CAL
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$15.4 / unidade
Ver ficha técnica →MC9S12XEQ384CAG
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
Consulte o preço
Ver ficha técnica →MC9S12XEP768CAG
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$19.85 / unidade
Ver ficha técnica →S912XEQ512J2 Classificações máximas e características elétricas
| Core Processor | S12X (HCS12X) |
| Core Size | 16-bit |
| Frequência máxima de clock | 50 MHz |
| Program Memory Size | 512 KB (512K x 8) Flash |
| Encapsulamento | 144-LQFP (20x20 mm) |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40C to +85C (S912XEQ512J2CAG grade) |
| Automotive Qualification | Yes (Automotive Qualified per NXP) |
| Product Family | S12XE (HCS12X) |
| Status RoHS | RoHS Compliant |
Guia de Configuração de Pinos do S912XEQ512J2 144-lqfp (20x20 mm)
Configuração de pinos para S912XEQ512J2 (pacote 144-lqfp (20x20 mm)). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para S912XEQ512J2.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
S912XEQ512J2 é adequado para 6 aplicaçãos: Automotive Body Control Module, In-Vehicle Network Gateway, Instrument Cluster, Industrial Control Systems, Door, Seat, and Comfort Control Units, Telematics and Fleet Tracking Control.
Automotive Body Control Module
Body control modules (BCM) consolidate control of lighting, wipers, door locks, and seat functions in a vehicle. The S912XEQ512J2 fits this role with its 16-bit S12X core at 50 MHz, 512 KB of Flash for diagnostics and feature-rich firmware, and automotive qualification per NXP. The HCS12X peripheral mix supports multiple LIN/CAN channels plus PWM outputs for lamp dimming and motor drives. Its single-supply design and mature Freescale/NXP toolchain reduce development risk; the 144-pin LQFP provides enough I/O to drive relay and high-side-switch banks directly. Trade-off: as a 5V-class MCU it consumes more quiescent power than modern 32-bit parts, so sleep-current budgets should be validated.
Recomendado
In-Vehicle Network Gateway
Gateways route messages between CAN, LIN, and occasionally FlexRay or K-Line networks in a vehicle. The S912XEQ512J2's HCS12X architecture is designed for this: the S12X core handles application logic while interrupt-heavy communication tasks can be offloaded, and 512 KB of Flash holds routing tables, diagnostic stacks (UDS/OBD), and network management firmware. At 50 MHz the core provides ample headroom for CAN gateway throughput typical of body-domain gateways. The 144-pin LQFP exposes the full peripheral set for multiple CAN/LIN channels. Use the XGATE-style offload features of the S12X family to keep message latency deterministic under peak bus load.
Recomendado
Instrument Cluster
Low-end and mid-range instrument clusters use 16-bit MCUs to drive stepper gauges, warning lamps, LCD segments, and audible alerts while receiving vehicle-speed and engine data over CAN/LIN. The S912XEQ512J2 offers the PWM channels, ADC inputs, and 50 MHz processing needed for smooth needle control and backlight dimming, with 512 KB Flash for odometer storage logic, telltale management, and diagnostic handlers. The automotive-qualified S12XE platform is field-proven in cluster applications, and its 5V I/O drives indicator LEDs directly without level shifting. Design consideration: use the internal EEPROM emulation in Flash carefully with wear-leveling for odometer data integrity.
Recomendado
Industrial Control Systems
Factory automation nodes, HVAC controllers, and pump/motor supervisory units benefit from the S912XEQ512J2's robust 5V 16-bit architecture, 512 KB of on-chip Flash, and industrial-temperature C-grade availability (-40 to +85 C per NXP for the CAG variant). Its ADC inputs support sensor acquisition while timer/PWM modules drive actuators and inverters; SCI/SPI links connect to operator panels and higher-level PLC networks. The mature HCS12X ecosystem, with long-lived compilers and debug tools, reduces lifecycle risk for industrial products with 10+ year service expectations. The QFP-144 package's 0.5 mm lead pitch requires standard SMT assembly but no exotic processes.
Recomendado
Door, Seat, and Comfort Control Units
Distributed door and seat modules each control window lifts, mirror motors, memory-seat actuators, and local LIN networks. The S912XEQ512J2 serves these nodes with its rich GPIO count on the 144-pin package, H-bridge-friendly PWM timers, and 512 KB Flash for position-memory and anti-pinch algorithms. Automotive qualification and the -40 to +85 C C-grade rating cover cabin and door environments. Its low EMC footprint simplifies passing automotive EMC tests when combined with proper PCB layout practices. For higher-volume, cost-optimized door modules, smaller-memory siblings in the same family (256/384 KB) can be substituted without changing the board platform.
Recomendado
Telematics and Fleet Tracking Control
Telematics black boxes, insurance-loggers, and fleet-tracking devices combine a cellular or GNSS modem with a vehicle-interface MCU. The S912XEQ512J2 acts as the vehicle-side controller: it taps CAN/LIN for speed, ignition, and diagnostic data, buffers events into its 512 KB Flash, and forwards them to the modem over UART/SPI. The 50 MHz S12X core handles message filtering and protocol conversion with margin, while the automotive-qualified silicon suits hard-wired in-vehicle installations. Because these devices run 24/7, validate deep-sleep current of the 5V S12X platform against battery-disconnect requirements; many designs pair it with an ultra-low-power supervisor for parked-vehicle monitoring.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para S912XEQ512J2 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | S912XET512J2VAGR | S912XEG384J2VAL | MC9S12XEP768CAG |
|---|---|---|---|---|
| Brand | NXP Semiconductors (Freescale) | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same |
| Core | S12X (HCS12X), 16-bit | S12X (HCS12X), 16-bit | S12X (HCS12X), 16-bit | S12X (HCS12X), 16-bit |
| Max Clock Frequency | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Flash Memory | 512 KB | 512 KB | 384 KB (-25%) | 768 KB (+50%) |
| Sub-Family / Peripheral Set | XEQ | XET | XEG | XEP |
| Automotive Qualification | Yes | Yes | Yes | Yes |
| RoHS | Compliant | Compliant | Compliant | Compliant |
Principais diferenciais
- Full 512 KB Flash in the QFP-144 footprint (vs S912XEG384J2VAL)
- Upgrade path without board respin (vs MC9S12XEP768CAG)
- XEQ peripheral set specialization (vs S912XET512J2VAGR)
Notas de projeto
Ordering-number discipline matters greatly in the S12XE family. The base designation S912XEQ512J2 identifies the silicon, but the suffix encodes temperature grade, package, and packing: CAG is -40/+85 C QFP-144 Tray, CAL is -40/+85 C QFP-144 Tray (per DigiKey), while MAL is -40/+125 C but in the 112-pin QFP. Specifying only the base number in a BOM invites wrong-variant deliveries. Always list the complete ordering part number, and verify the package pin count (112 vs 144) on incoming inspection drawings before assembly.
The 144-pin LQFP has a 0.5 mm lead pitch and a 20x20 mm body, requiring a conventional SMT land pattern per the NXP package drawing. For mixed-signal boards, place the MCU's 5V supply decoupling (100 nF per supply pin group plus bulk capacitance) close to the corner power/ground pin pairs, and route the crystal traces short and guarded. Because S12X parts integrate flash and analog modules on-die, a solid ground pour under the package and careful separation of motor/relay return paths from the MCU ground are recommended to meet automotive EMC requirements.
Estimated: the S12XE family is designed for single-supply 5V operation (verify the exact VDD range in the S12XE datasheet). Budget for inrush during flash mass-erase/program cycles and for peak core current at 50 MHz when sizing the 5V rail; a typical allowance of 100-150 mA for the MCU plus I/O loads is a conservative starting point, but confirm against the datasheet current-consumption tables for your clock configuration. Add local bulk capacitance (10 uF) beside the 100 nF decouplers on a module that also drives relays or lamp loads.
Informações de conformidade
RoHS compliant per JLCPCB and LCSC listings for S912XEQ512J2. NXP lists the S12XE family (e.g., S912XEQ512J2CAG) as Automotive Qualified. REACH, lead-free, halogen-free, and conflict-minerals status should be confirmed from NXP compliance documentation for the exact ordering suffix.
