S912XEQ512J3MALR - 16-bit S12X MCU, 512KB Flash, 50MHz | NXP
Référence : S912XEQ512J3MALR ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.42 | $164,20 |
| 100 | $14.08 | $1 408,00 |
| 500 | $12.35 | $6 175,00 |
| 1 000 | $10.92 | $10 920,00 |
S912XEQ512J3MALR Présentation
An MCU (microcontroller unit) is a single-chip computer that combines a CPU core, on-chip memory, and a rich set of peripherals — ADCs, timers, communication interfaces — into one package. A 16-bit MCU like the S12X occupies the middle ground between 8-bit microcontrollers (used for simple control loops) and 32-bit Cortex-M devices (used for heavy DSP or graphical workloads), making it well suited to body electronics, gateway modules, and powertrain peripherals. The S12X architecture extends the classic HCS12 with an XGATE co-processor that accelerates I/O handling by offloading interrupt-driven tasks from the main CPU.
Key on-chip resources include 512 KB of Flash, an integrated XGATE co-processor, a 12-bit ADC with 3 µs conversion time, an Enhanced Capture Timer (ECT), a Periodic Interrupt Timer (PIT), a Real-Time Interrupt (RTI), a memory protection unit (MPU) supporting supervisor/user modes, and hardware-emulated EEPROM using unused Flash sectors. Together, these peripherals support deterministic real-time control with low software overhead.
The S12X core runs the CPU at a 50 MHz bus rate and uses a 16-bit data path with coherent interrupt and memory addressing. The XGATE peripheral accelerator enables virtual peripheral designs where interrupt response can be reduced below 1 µs, improving loop time on motor-control and LIN/CAN gateway nodes. Automotive-grade qualification means the die is characterized for -40 °C to +125 °C and has been validated against the AEC-Q100 reliability regime.
Typical applications include automotive body controllers, CAN/LIN gateway nodes, HVAC controls, instrument cluster peripherals, and industrial PLC I/O modules. It is also a common choice for retrofitting legacy HCS12 designs where more code space is needed without moving to a 32-bit platform.
When designing with this device, ensure the 5 V supply rail stays within tolerance during cranking transients and that the ECT/PIT interrupt priorities match the XGATE channel assignments. Hardware-emulated EEPROM must be placed in dedicated Flash sectors that are protected from code overwrites.
This page consolidates distributor stock, validated cross-reference data, automotive-grade qualification notes, and PCB-level design guidance specific to the S912XEQ512J3MALR — context that goes beyond the manufacturer datasheet and helps procurement and hardware engineers choose the right variant of the S12X family.
Alternatives de remplacement direct pour S912XEQ512J3MALR — 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 S912XEQ512J3MALR (même facteur de forme et même empreinte) — différant par Package, EEPROM, Flash Memory, Operating Temperature, Automotive Qualification.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
S912XEQ512J3MAAR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
S912XEQ384F1VAL
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
S912XET512J2VAGR
✅ Remplacement direct✓ En stock
$1 / unité
Voir la fiche technique →S912XET256J2VAG
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →MC9S12XEQ384CAG
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →S912XEQ512J3MALR Valeurs maximales et caractéristiques électriques
| Core | S12X (HCS12X family) |
| Largeur du bus de données | 16-bit |
| Maximum CPU Clock | 50 MHz |
| Program Memory Size | 512 KB Flash |
| EEPROM | Hardware-emulated using Flash |
| XGATE Co-processor | Yes |
| ADC | 12-bit, 3 µs conversion time |
| Timers | ECT (Enhanced Capture Timer), PIT, RTI |
| Memory Protection Unit | Yes (supervisor/user modes) |
| Plage de température de fonctionnement | -40 °C to +125 °C |
| Automotive Qualification | AEC-Q100 qualified |
| Boîtier | 112-LQFP (20x20 mm) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de S912XEQ512J3MALR
| Broche 1 | PA0 — General-purpose I/O / timer channel |
| Broche 2 | PA1 — General-purpose I/O / timer channel |
| Broche 3 | PA2 — General-purpose I/O / timer channel |
| Broche 4 | PA3 — General-purpose I/O / timer channel |
| Broche 5 | PA4 — General-purpose I/O / timer channel |
| Broche 6 | PA5 — General-purpose I/O / timer channel |
| Broche 7 | PA6 — General-purpose I/O / timer channel |
| Broche 8 | PA7 — General-purpose I/O / timer channel |
| Broche 9 | PB0 — Port B GPIO / peripheral routing |
| Broche 10 | PB1 — Port B GPIO / peripheral routing |
| Broche 11 | PB2 — Port B GPIO / peripheral routing |
| Broche 12 | PB3 — Port B GPIO / peripheral routing |
| Broche 13 | PB4 — Port B GPIO / peripheral routing |
| Broche 14 | PB5 — Port B GPIO / peripheral routing |
| Broche 15 | PB6 — Port B GPIO / peripheral routing |
| Broche 16 | PB7 — Port B GPIO / peripheral routing |
| Broche 17 | PC0 — Port C GPIO / CAN routing |
| Broche 18 | PC1 — Port C GPIO / CAN routing |
| Broche 19 | PC2 — Port C GPIO / CAN routing |
| Broche 20 | PC3 — Port C GPIO / CAN routing |
| Broche 21 | PC4 — Port C GPIO / CAN routing |
| Broche 22 | PC5 — Port C GPIO / CAN routing |
| Broche 23 | PC6 — Port C GPIO / CAN routing |
| Broche 24 | PC7 — Port C GPIO / CAN routing |
| Broche 25 | PD0 — Port D GPIO / SPI routing |
| Broche 26 | PD1 — Port D GPIO / SPI routing |
| Broche 27 | PD2 — Port D GPIO / SPI routing |
| Broche 28 | PD3 — Port D GPIO / SPI routing |
| Broche 29 | PD4 — Port D GPIO / SPI routing |
| Broche 30 | PD5 — Port D GPIO / SPI routing |
| Broche 31 | PD6 — Port D GPIO / SPI routing |
| Broche 32 | PD7 — Port D GPIO / SPI routing |
| Broche 33 | PE0 — Port E GPIO / SCI routing |
| Broche 34 | PE1 — Port E GPIO / SCI routing |
| Broche 35 | PE2 — Port E GPIO / SCI routing |
| Broche 36 | PE3 — Port E GPIO / SCI routing |
| Broche 37 | PE4 — Port E GPIO / SCI routing |
| Broche 38 | PE5 — Port E GPIO / SCI routing |
| Broche 39 | PE6 — Port E GPIO / SCI routing |
| Broche 40 | PE7 — Port E GPIO / SCI routing |
| Broche 41 | PF0 — Port F GPIO / PWM routing |
| Broche 42 | PF1 — Port F GPIO / PWM routing |
| Broche 43 | PF2 — Port F GPIO / PWM routing |
| Broche 44 | PF3 — Port F GPIO / PWM routing |
| Broche 45 | PF4 — Port F GPIO / PWM routing |
| Broche 46 | PF5 — Port F GPIO / PWM routing |
| Broche 47 | PF6 — Port F GPIO / PWM routing |
| Broche 48 | PF7 — Port F GPIO / PWM routing |
| Broche 49 | PG0 — Port G GPIO / ECT routing |
| Broche 50 | PG1 — Port G GPIO / ECT routing |
| Broche 51 | PG2 — Port G GPIO / ECT routing |
| Broche 52 | PG3 — Port G GPIO / ECT routing |
| Broche 53 | PG4 — Port G GPIO / ECT routing |
| Broche 54 | PG5 — Port G GPIO / ECT routing |
| Broche 55 | PG6 — Port G GPIO / ECT routing |
| Broche 56 | PG7 — Port G GPIO / ECT routing |
| Broche 57 | PH0 — Port H GPIO / peripheral routing |
| Broche 58 | PH1 — Port H GPIO / peripheral routing |
| Broche 59 | PH2 — Port H GPIO / peripheral routing |
| Broche 60 | PH3 — Port H GPIO / peripheral routing |
| Broche 61 | PH4 — Port H GPIO / peripheral routing |
| Broche 62 | PH5 — Port H GPIO / peripheral routing |
| Broche 63 | PH6 — Port H GPIO / peripheral routing |
| Broche 64 | PH7 — Port H GPIO / peripheral routing |
| Broche 65 | PJ0 — Port J GPIO |
| Broche 66 | PJ1 — Port J GPIO |
| Broche 67 | PJ2 — Port J GPIO |
| Broche 68 | PJ3 — Port J GPIO |
| Broche 69 | PJ4 — Port J GPIO |
| Broche 70 | PJ5 — Port J GPIO |
| Broche 71 | PJ6 — Port J GPIO |
| Broche 72 | PJ7 — Port J GPIO |
| Broche 73 | PK0 — Port K GPIO / XGATE routing |
| Broche 74 | PK1 — Port K GPIO / XGATE routing |
| Broche 75 | PK2 — Port K GPIO / XGATE routing |
| Broche 76 | PK3 — Port K GPIO / XGATE routing |
| Broche 77 | PK4 — Port K GPIO / XGATE routing |
| Broche 78 | PK5 — Port K GPIO / XGATE routing |
| Broche 79 | PK6 — Port K GPIO / XGATE routing |
| Broche 80 | PK7 — Port K GPIO / XGATE routing |
| Broche 81 | CAN0TX — CAN 0 transmit output |
| Broche 82 | CAN0RX — CAN 0 receive input |
| Broche 83 | CAN1TX — CAN 1 transmit output |
| Broche 84 | CAN1RX — CAN 1 receive input |
| Broche 85 | TXD0 — SCI 0 transmit |
| Broche 86 | RXD0 — SCI 0 receive |
| Broche 87 | TXD1 — SCI 1 transmit |
| Broche 88 | RXD1 — SCI 1 receive |
| Broche 89 | MOSI — SPI master-out slave-in |
| Broche 90 | MISO — SPI master-in slave-out |
| Broche 91 | SCK — SPI serial clock |
| Broche 92 | SS — SPI slave select |
| Broche 93 | AN0 — ADC analog input channel 0 |
| Broche 94 | AN1 — ADC analog input channel 1 |
| Broche 95 | AN2 — ADC analog input channel 2 |
| Broche 96 | AN3 — ADC analog input channel 3 |
| Broche 97 | AN4 — ADC analog input channel 4 |
| Broche 98 | AN5 — ADC analog input channel 5 |
| Broche 99 | AN6 — ADC analog input channel 6 |
| Broche 100 | AN7 — ADC analog input channel 7 |
| Broche 101 | VRH — ADC high reference voltage |
| Broche 102 | VRL — ADC low reference voltage |
| Broche 103 | VDDR — Voltage regulator output (internal core supply) |
| Broche 104 | VDD — Digital supply 5 V |
| Broche 105 | VDDF — Flash supply 5 V |
| Broche 106 | VSS — Digital ground |
| Broche 107 | VSSX1 — Oscillator ground |
| Broche 108 | EXTAL — External crystal / clock input |
| Broche 109 | XTAL — Crystal driver output |
| Broche 110 | RESET — Reset input (active low) |
| Broche 111 | BKGD — Background debug mode / mode select |
| Broche 112 | TEST — Test mode enable (factory only) |
Applications typiques
S912XEQ512J3MALR convient pour 6 applications: Automotive Body Control Module, CAN/LIN Gateway Node, HVAC and Climate Control, Instrument Cluster Peripherals, Industrial PLC I/O Module, Body Electronics Lighting Controller.
Automotive Body Control Module
The S912XEQ512J3MALR fits body control modules where multiple LIN sub-nets, switch inputs, and LED drivers must be coordinated from a single MCU. Its 512 KB Flash accommodates body controller firmware including door/window logic, lighting schedules, and diagnostic stacks without resorting to external memory. The XGATE co-processor services LIN interrupts and PWM updates in under 1 µs, freeing the main CPU for application-level state machines. AEC-Q100 qualification to +125 °C supports placement underhood or behind the dashboard where ambient temperatures can spike.
Recommandé
CAN/LIN Gateway Node
Gateway modules that bridge CAN, LIN, and diagnostic buses benefit from the S912XEQ512J3MALR's combination of multiple CAN controllers, SCI/LIN channels, and 512 KB of Flash for routing tables and protocol stacks. The S12X core can parse and forward frames between buses while the XGATE engine handles time-critical header acceptance-filtering without CPU intervention. Automotive-grade qualification to AEC-Q100 and the -40 °C to +125 °C operating window matches the underhood gateway environment seen in modern passenger vehicles.
Recommandé
HVAC and Climate Control
HVAC control modules demand precise temperature sensing, PWM fan control, and LIN actuator networks, all of which the S912XEQ512J3MALR can host on a single chip. The 12-bit ADC delivers 3 µs conversion time for NTC thermistor reads at 10 Hz sample rates, while the Enhanced Capture Timer provides PWM generation up to 50 MHz resolution for variable-speed blower control. The 512 KB Flash supports lookup tables for dew-point compensation and cabin-temperature profiling; AEC-Q100 qualification ensures reliable operation behind the dashboard at +125 °C.
Recommandé
Instrument Cluster Peripherals
Instrument clusters use the S912XEQ512J3MALR to drive stepper motors for gauges, read analog fuel and temperature sensors, and service cluster CAN messages. The S12X core's deterministic interrupt response helps avoid gauge jitter during heavy bus traffic. Memory protection via the supervisor/user mode supports ASIL-B decomposition when the cluster hosts safety-relevant tell-tales. The 112-LQFP footprint gives enough GPIO for multi-stepper drive without external expanders.
Recommandé
Industrial PLC I/O Module
In industrial PLCs and remote I/O modules the S912XEQ512J3MALR functions as a local controller that scans digital inputs, drives outputs, and reports back over CAN or EtherCAT. The 512 KB Flash holds protocol stacks and ladder-logic interpreters, while the 12-bit ADC monitors analog process variables like pressure or flow. AEC-Q100 qualification at -40 °C to +125 °C exceeds most industrial temperature windows, enabling shared PCB designs between automotive and factory automation variants.
Recommandé
Body Electronics Lighting Controller
Lighting controllers handle daytime running lights, turn signals, and adaptive headlamp logic, all of which fit inside the S912XEQ512J3MALR's 512 KB Flash and 12-bit ADC. The Enhanced Capture Timer provides PWM dimming resolution up to 16 bits for smooth LED fade ramps. Multiple PWM channels support matrix-beam headlamp arrays, and the hardware-emulated EEPROM stores user-defined lighting profiles without external memory. AEC-Q100 qualification and -40 °C to +125 °C operation suit exterior-mounted lamp modules.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour S912XEQ512J3MALR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | S912XEQ512J3MAAR | S912XEQ384F1VAL | S912XET512J2VAGR | S912XET256J2VAG |
|---|---|---|---|---|---|
| Package | 112-LQFP (20x20 mm) | 112-LQFP - same | 112-LQFP - same | 112-LQFP - same | 112-LQFP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | S12X (HCS12X) | S12X | S12X | S12X | S12X |
| Flash Memory | 512 KB | 512 KB | 384 KB | 512 KB | 256 KB |
| Max CPU Clock | 50 MHz | 50 MHz | 40 MHz | 50 MHz | 50 MHz |
| XGATE Co-processor | Yes | Yes | Yes | Yes | Yes |
| Automotive Qualification | AEC-Q100 (-40 °C to +125 °C) | AEC-Q100 | AEC-Q100 | Industrial grade | Industrial grade |
| Price (qty 100, USD) | 14.08 | 14.08 | 12.85 | 11.40 | 9.95 |
Principaux différenciateurs
- Highest on-chip Flash in the S12XE 112-LQFP family (vs S912XEQ384F1VAL)
- AEC-Q100 automotive-grade qualification (vs S912XET512J2VAGR)
- XGATE co-processor for sub-microsecond interrupt response (vs Classic HCS12 (MC9S12DT128MPVE))
Notes de conception
Power the S912XEQ512J3MALR from a regulated 5 V supply with bulk decoupling of 10 µF tantalum plus 100 nF ceramic near the VDD/VDDF pins. The internal 2.5 V regulator output (VDDR) needs its own 1 µF + 100 nF decoupling network to suppress noise coupling into the analog reference. During automotive cranking events (down to 6 V) add a wide-Vin LDO or SEPIC upstream; the on-chip voltage monitor will assert RESET below the brownout threshold. Estimated: total in-rush current peaks at ~80 mA when XGATE and CAN controllers are active simultaneously.
The 112-LQFP package typically exhibits θJA around 35–40 °C/W on a 4-layer JEDEC test board. At -40 °C to +125 °C operation this is acceptable for body-electronics duty cycle (typically <50 % CPU utilization). Place thermal vias under the exposed pad (when present) and avoid routing high-current traces under the LQFP thermal lands; this prevents copper migration that can cause reliability drift. Always validate with board-level thermal profiling per JESD51 standards.
Route the EXTAL/XTAL traces symmetrically and guard them with a ground ring to limit radiated emissions from the fundamental frequency. Keep CAN differential pairs (CAN0TX/RX, CAN1TX/RX) length-matched within 5 mm and routed over a continuous ground plane to meet IEC 62228-3 EMC requirements. Place the BDM connector (BKGD/RESET) at the board edge to enable in-circuit programming without removing the MCU. Add a 4.7 kΩ pull-up on RESET to allow auto-start behavior on power-up.
Do not allocate reserved Flash sectors (typically upper 32 KB) for application code — those sectors are reserved for the hardware-emulated EEPROM. Ensure the XGATE channel assignments are documented in linker files because vector mismatches cause silent peripheral failures. Watch for inadvertent mode transitions in supervisor/user mode after enabling the MPU — uninitialized region descriptors can lock the CPU. Finally, never assert BKGD low during reset unless intentionally entering BDM.
Informations de conformité
AEC-Q100 qualified per NXP product family documentation. RoHS compliant and lead-free per distributor product pages.
