S912XDT512J1CAA - 16-bit HCS12X MCU 512KB Flash 80MHz QFP-80 | NXP
Référence : S912XDT512J1CAA ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $20.73 | $20,73 |
| 10 | $18.66 | $186,60 |
| 100 | $16.58 | $1 658,00 |
| 500 | $14.51 | $7 255,00 |
| 1 000 | $12.44 | $12 440,00 |
S912XDT512J1CAA Présentation
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash for code, RAM for data), and peripherals such as timers, ADC, communication controllers, and GPIO into one device. The S912XDT512J1CAA sits in the broader product taxonomy as: MCU -> 16-bit microcontroller -> HCS12X family -> automotive body and chassis microcontroller -> NXP S12XD sub-family. This taxonomy helps engineers understand compatibility with developer tools (CodeWarrior, IAR, GCC for S12X) and existing HCS12 software libraries.
Key features include 512 KB on-chip Flash, 4 KB EEPROM, and 20 KB RAM, up to 80 MHz bus via on-chip PLL, dual XGATE co-processors for I/O offload, a 16-channel 10-bit ADC, up to 8 PWM channels, multiple CAN 2.0A/B (msCAN) controllers, SPI/I2C/SCI (UART) interfaces, and background-debug (BDM) for non-intrusive in-circuit programming.
The device uses an enhanced HCS12X CPU core with separate program and data buses (von Neumann / Harvard hybrid) and the XGATE co-processor for deterministic I/O event handling; this dual-core architecture is the key differentiator versus the legacy HCS12 and is what allows higher effective throughput at the same 80 MHz clock. The on-chip voltage regulator supports single 5V supply operation with internal 2.5V core generation.
Typical applications include automotive body controllers (BCM), instrument clusters, HVAC modules, central body electronics, and industrial CAN networks where deterministic real-time response is required across many concurrent CAN/CAN-FD and PWM nodes. Designers choose the S912XDT512J1CAA when existing HCS12 code bases must be migrated or scaled up without a full re-spin.
When designing with this MCU, allocate the package thermal budget carefully: the 80-pin QFP requires careful ground/power plane stitching for noise immunity, and unused pins should be left open per datasheet for automotive EMI immunity.
This page synthesizes NXP official specifications, real-time distributor pricing, and curated same-family alternatives (S912XDT256F1CAA, S912XDT256F1VAA) so that engineers can quickly evaluate second-source options.
Alternatives de remplacement direct pour S912XDT512J1CAA — 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 S912XDT512J1CAA (même facteur de forme et même empreinte) — différant par Instruction Set Compatibility, Operating Temperature, Package, Mounting Type, CPU Core.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
S912XDT512J1VAA
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
S912XDT256F1CAA
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →S912XDT256F1VAA
✅ Remplacement direct✓ En stock
$13.6 / unité
Voir la fiche technique →S912XDT384J1MAG
✅ Remplacement direct✓ En stock
$7.45 / unité
Voir la fiche technique →S912XEG384AVAGR
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →S912XDT512J1CAA Valeurs maximales et caractéristiques électriques
| Core | HCS12X (16-bit CISC) |
| CPU Family | MC9S12XD |
| Program Memory | 512 KB Flash |
| Max CPU Frequency | 80 MHz |
| Tension d'alimentation | 2.5 V / 5 V |
| Température de fonctionnement | -40C to +85C |
| Boîtier | 80-pin QFP (14x14 mm) |
| Type de montage | Surface Mount |
| AEC-Q100 | Automotive qualified |
| Debug Interface | BDM (Background Debug Mode) |
| Statut RoHS | Compliant |
Configuration des broches de S912XDT512J1CAA
| Broche 1 | PP0 — Port P bit 0 (PWM/ timer I/O) |
| Broche 2 | PP1 — Port P bit 1 (PWM/ timer I/O) |
| Broche 3 | PP2 — Port P bit 2 (PWM/ timer I/O) |
| Broche 4 | PP3 — Port P bit 3 (PWM/ timer I/O) |
| Broche 5 | PP4 — Port P bit 4 (PWM/ timer I/O) |
| Broche 6 | PP5 — Port P bit 5 (PWM/ timer I/O) |
| Broche 7 | PP6 — Port P bit 6 (PWM/ timer I/O) |
| Broche 8 | PP7 — Port P bit 7 (PWM/ timer I/O) |
| Broche 9 | VDDR — External voltage regulator enable / power |
| Broche 10 | VSSX1 — Ground (oscillator/PLL) |
| Broche 11 | VDDX1 — Digital supply (2.5/5V) |
| Broche 12 | OSC1 — Crystal oscillator input |
| Broche 13 | OSC2 — Crystal oscillator output |
| Broche 14 | VSSPLL — PLL ground |
| Broche 15 | VDDPLL — PLL supply |
| Broche 16 | XFC — PLL loop filter cap |
| Broche 17 | RESET — Reset input (active low) |
| Broche 18 | BKGD — Background Debug Mode / MODC |
| Broche 19 | MODA — Mode select A |
| Broche 20 | MODB — Mode select B |
| Broche 21 | PAD00 — Port AD bit 0 (ADC input) |
| Broche 22 | PAD01 — Port AD bit 1 (ADC input) |
| Broche 23 | PAD02 — Port AD bit 2 (ADC input) |
| Broche 24 | PAD03 — Port AD bit 3 (ADC input) |
| Broche 25 | PAD04 — Port AD bit 4 (ADC input) |
| Broche 26 | PAD05 — Port AD bit 5 (ADC input) |
| Broche 27 | PAD06 — Port AD bit 6 (ADC input) |
| Broche 28 | PAD07 — Port AD bit 7 (ADC input) |
| Broche 29 | PAD08 — Port AD bit 8 (ADC input) |
| Broche 30 | PAD09 — Port AD bit 9 (ADC input) |
| Broche 31 | PAD10 — Port AD bit 10 (ADC input) |
| Broche 32 | PAD11 — Port AD bit 11 (ADC input) |
| Broche 33 | PAD12 — Port AD bit 12 (ADC input) |
| Broche 34 | PAD13 — Port AD bit 13 (ADC input) |
| Broche 35 | PAD14 — Port AD bit 14 (ADC input) |
| Broche 36 | PAD15 — Port AD bit 15 (ADC input) |
| Broche 37 | VDDA — ADC supply |
| Broche 38 | VSSA — ADC ground |
| Broche 39 | VRH — ADC reference high |
| Broche 40 | VRL — ADC reference low |
| Broche 41 | CAN0TX — CAN0 transmit |
| Broche 42 | CAN0RX — CAN0 receive |
| Broche 43 | CAN1TX — CAN1 transmit |
| Broche 44 | CAN1RX — CAN1 receive |
| Broche 45 | SPI0_SCK — SPI0 clock |
| Broche 46 | SPI0_MOSI — SPI0 master-out / slave-in |
| Broche 47 | SPI0_MISO — SPI0 master-in / slave-out |
| Broche 48 | SPI0_SS — SPI0 slave select |
| Broche 49 | SCI0TXD — SCI0 UART transmit |
| Broche 50 | SCI0RXD — SCI0 UART receive |
| Broche 51 | SCI1TXD — SCI1 UART transmit |
| Broche 52 | SCI1RXD — SCI1 UART receive |
| Broche 53 | PT0 — Port T bit 0 (TIM channel) |
| Broche 54 | PT1 — Port T bit 1 (TIM channel) |
| Broche 55 | PT2 — Port T bit 2 (TIM channel) |
| Broche 56 | PT3 — Port T bit 3 (TIM channel) |
| Broche 57 | PT4 — Port T bit 4 (TIM channel) |
| Broche 58 | PT5 — Port T bit 5 (TIM channel) |
| Broche 59 | PT6 — Port T bit 6 (TIM channel) |
| Broche 60 | PT7 — Port T bit 7 (TIM channel) |
| Broche 61 | PA0 — Port A bit 0 |
| Broche 62 | PA1 — Port A bit 1 |
| Broche 63 | PA2 — Port A bit 2 |
| Broche 64 | PA3 — Port A bit 3 |
| Broche 65 | PA4 — Port A bit 4 |
| Broche 66 | PA5 — Port A bit 5 |
| Broche 67 | PA6 — Port A bit 6 |
| Broche 68 | PA7 — Port A bit 7 |
| Broche 69 | PB0 — Port B bit 0 |
| Broche 70 | PB1 — Port B bit 1 |
| Broche 71 | PB2 — Port B bit 2 |
| Broche 72 | PB3 — Port B bit 3 |
| Broche 73 | PB4 — Port B bit 4 |
| Broche 74 | PB5 — Port B bit 5 |
| Broche 75 | PB6 — Port B bit 6 |
| Broche 76 | PB7 — Port B bit 7 |
| Broche 77 | PE0 — Port E bit 0 (IRQ/XIRQ) |
| Broche 78 | PE1 — Port E bit 1 (IRQ) |
| Broche 79 | VDDX2 — Digital supply 2 |
| Broche 80 | VSSX2 — Ground 2 |
Applications typiques
S912XDT512J1CAA convient pour 6 applications: Automotive Body Control Module (BCM), Automotive Instrument Cluster, HVAC Control Module, Industrial CAN Node (CANopen / DeviceNet), Automotive Gateway / Central Body Controller, Battery Management Slave (BMS) Module.
Automotive Body Control Module (BCM)
The S912XDT512J1CAA's 512 KB Flash accommodates full UDS diagnostic stacks, CAN bootloader, and body-control application firmware in a single chip, while the HCS12X 80 MHz core and XGATE co-processor handle real-time CAN message scheduling. With AEC-Q100 qualification and -40C to +85C operation, it directly supports interior lighting, central locking, and wiper control, plus its multiple msCAN controllers enable simultaneous gateway and body CAN channels.
Recommandé
Automotive Instrument Cluster
The S912XDT512J1CAA's XGATE co-processor offloads display refresh and stepper-motor driving tasks, freeing the HCS12X main CPU to handle CAN message decoding and gauge calculations. Its 16-channel 10-bit ADC reads multiple sensor inputs (fuel level, coolant temperature, wheel speed) and the 8 PWM channels drive analog-style gauges. AEC-Q100 compliance plus 512 KB Flash for graphics libraries and stepper control firmware make this MCU a strong fit for digital instrument clusters.
Recommandé
HVAC Control Module
Climate-control modules demand precise PWM channels to drive blower motors and blend doors - the S912XDT512J1CAA's 8 PWM outputs provide this control. Its CAN interfaces receive setpoint data from the dashboard, the 16-channel ADC reads thermistor inputs, and the XGATE co-processor maintains deterministic loop timing for closed-loop temperature control. AEC-Q100 qualification plus 512 KB Flash for the HVAC control strategy fit duty cycle.
Recommandé
Industrial CAN Node (CANopen / DeviceNet)
Industrial automation nodes that speak CANopen or DeviceNet require deterministic real-time response, multi-message CAN handling, and ample code space for protocol stacks. The S912XDT512J1CAA's 80 MHz HCS12X core plus XGATE offload sustain ms-level CAN cycle times while 512 KB Flash hosts the full CANopen stack. Its QFP-80 industrial -40C to +85C rating and 5V supply tolerance match 24V factory bus environments with simple LDO regulation.
Recommandé
Automotive Gateway / Central Body Controller
Where multiple CAN sub-networks (powertrain, body, chassis, infotainment) must be bridged, the S912XDT512J1CAA's multiple msCAN controllers and 512 KB Flash deliver full message routing with frame translation. XGATE accelerates filter-and-forward tasks so the HCS12X CPU maintains routing tables while XGATE handles every incoming frame interrupt. AEC-Q100 qualification and the rugged QFP-80 package suit under-dash mounting.
Recommandé
Battery Management Slave (BMS) Module
Distributed BMS modules assign per-cell monitoring to slave nodes that communicate over CAN/SPI to a master. The S912XDT512J1CAA's SPI port can interface to external AFE ICs (e.g., MC33771), and its 16-channel ADC supports cell-voltage and temperature monitoring. Its -40 to +85C rating plus 512 KB Flash for cell-balancing firmware plus AEC-Q100 qualification suit under-seat automotive battery-pack installations.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour S912XDT512J1CAA — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | S912XDT512J1VAA | S912XDT256F1CAA | S912XDT256F1VAA | S912XDT384J1MAG | S912XEG384AVAGR |
|---|---|---|---|---|---|---|
| Package | 80-pin QFP (14x14 mm) | 80-pin QFP (14x14 mm) - same | 80-pin QFP (14x14 mm) - same | 80-pin QFP (14x14 mm) - same | 80-pin QFP (14x14 mm) - same | 80-pin QFP (14x14 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HCS12X (16-bit) | HCS12X (16-bit) | HCS12X (16-bit) | HCS12X (16-bit) | HCS12X (16-bit) | HCS12X (16-bit) |
| Max CPU Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash Memory | 512 KB | 512 KB | 256 KB (-50%) | 256 KB (-50%) | 384 KB (-25%) | 384 KB (-25%) |
| Operating Temperature | -40C to +85C | -40C to +105C (extended) | -40C to +85C | -40C to +105C (extended) | -40C to +125C | -40C to +85C |
| Automotive Qualified | Yes (AEC-Q100) | Yes (AEC-Q100) | Yes (AEC-Q100) | Yes (AEC-Q100) | Yes (AEC-Q100) | Yes (AEC-Q100) |
Principaux différenciateurs
- Largest Flash in S12XD QFP-80 footprint (vs S912XDT256F1CAA)
- HCS12X core with XGATE co-processor (vs MC9S12XEQ512MAA (S12XE family))
- Industrial and automotive temperature range in single part (vs MC9S12D64CFUE)
- Code compatibility with legacy HCS12 firmware (vs MC56F8346MFVE (Freescale DSP))
Notes de conception
Estimated: route all VDDX and VSSX pins to wide, uninterrupted power and ground planes; place 100nF decoupling caps within 3 mm of every VDDX pin (10 pins on the 80-QFP package). Add a 4.7uF bulk capacitor close to the VDDR pin to stabilize the internal 2.5V LDO that supplies the HCS12X core. AGND/VSSA for the ADC must star-ground back to a single point to avoid digital switching noise coupling into analog measurements.
The S912XDT512J1CAA supports single 5V supply operation; the internal voltage regulator generates 2.5V for the core. For automotive 12V battery input, add a reverse-battery protection diode (e.g., SS34) and a TVS clamp (SMBJ16A) on VBAT. Keep the VDDR capacitor (tantalum or ceramic 4.7uF minimum) within 5 mm of the VDDR pin to meet NXP MC9S12XD datasheet power-up timing.
Estimated: do not float unused ADC inputs on the 16-channel ADC - either tie them to VRL or VDDA through 10k resistors; floating ADC inputs cause excess supply current in run mode. The BKGD pin is multi-function and serial-flash-programmable; do not pull up BKGD to VDDX without a series resistor or it will interfere with BDM debugging. Configure the MODA/MODB mode-select pins correctly to enter normal-single-chip mode at reset.
Estimated: the 80-pin QFP (14x14 mm) has typical theta-JA around 60-70 C/W on a 2-layer FR4 board with no airflow. At 80 MHz full CPU load (approximately 65 mA core current per the datasheet family), the die temperature rise above ambient is roughly 25C, but peripheral pins driving LEDs or relays raise I/O power. For tight enclosures, add thermal vias under the exposed pad area (the 80-QFP has none, so use the wide ground/VDD copper fill as a heatsink instead).
Informations de conformité
AEC-Q100 qualified for automotive use per NXP MC9S12XD datasheet. RoHS compliant per distributor (DigiKey, Mouser) product pages. Halogen-free per NXP packaging materials declaration.
