MC9S12XEQ512CAG - 16-Bit S12X MCU, 512KB Flash, 50MHz, 144-LQFP | NXP
N.º de pieza: MC9S12XEQ512CAG ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $22.5 | $22,50 |
| 10 | $20.25 | $202,50 |
| 100 | $17.85 | $1.785,00 |
| 500 | $16.1 | $8.050,00 |
| 1.000 | $14.4 | $14.400,00 |
MC9S12XEQ512CAG Descripción general
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and programmable peripherals. In the embedded system taxonomy, the MC9S12XEQ512CAG is a Flash-based MCU -> CISC microcontroller -> 16-bit embedded controller -> automotive-grade semiconductor. The HCS12X core uses a CISC instruction set with enhanced addressing modes, while the XGATE peripheral co-processor enables offloading of time-critical interrupt servicing to free the main CPU for application code.
Key features include 512 KB on-chip Flash, 32 KB RAM, a 12-bit ADC with 3 us conversion time, an enhanced capture timer (ECT), periodic interrupt timer (PIT), real-time interrupt (RTI), CAN, SCI, SPI, and a memory protection unit supporting supervisor/user privilege separation. The XGATE co-processor operates at twice the bus speed and can be used to implement virtual peripherals and DMA-style data movement at zero CPU overhead.
The device supports multi-voltage I/O (5V or 3.3V) and operates across an extended automotive temperature range (-40C to +85C for the -CAG suffix). Its on-chip regulator accepts a single external 5V supply and generates internal 1.8V and 2.8V rails. The integrated CAN module makes it well-suited for in-vehicle networking and industrial fieldbus.
Typical applications include body control modules (BCM), instrument clusters, automotive HVAC controllers, industrial CAN nodes, and sensor interface platforms. The combination of deterministic interrupt latency and large Flash makes the part a strong fit for firmware-rich automotive ECUs where software-update time and reliability matter.
When designing with this part, note that the 144-LQFP package requires 4-layer PCB for clean SI on the external bus interface, and the XGATE firmware must be loaded into a dedicated RAM region. The MCU's Flash programming model uses a separate erase sector for EEPROM emulation and demands specific sequencing for security unlocking.
This page synthesizes distributor pricing, same-family NXP drop-in alternates, and practical design notes not found in the manufacturer datasheet alone.
Alternativas directas para MC9S12XEQ512CAG — 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 MC9S12XEQ512CAG (mismo factor de forma y huella) — difiere en Package, Operating Temperature, Supply Voltage, Core, ADC.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MC9S12XEQ384CAG
✅ Sustitución directa✓ En stock
Consulte el precio
Ver hoja de datos →MC9S12XDP512CAG
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC9S12XEP768CAG
✅ Sustitución directa✓ En stock
$19.85 / unidad
Ver hoja de datos →MC9S12XDT512MAA
✅ Sustitución directa✓ En stock
Consulte el precio
Ver hoja de datos →MC9S12A512CPVE
✅ Sustitución directa✓ En stock
$10.45 / unidad
Ver hoja de datos →MC9S12XEQ512CAG Valores máximos y características eléctricas
| Core | HCS12X (16-bit CISC) |
| Co-processor | XGATE (RISC, 2x bus speed) |
| Bus Speed (Max) | 50 MHz |
| Program Flash | 512 KB (512K x 8) |
| RAM | 32 KB |
| ADC | 12-bit, 3 us conversion time |
| Operating Voltage | 1.8 V / 2.8 V / 5 V (multi-supply I/O) |
| Temperatura de funcionamiento | -40 C to +85 C |
| Encapsulado | 144-LQFP (20 x 20 mm) |
| Tipo de montaje | Surface Mount |
| Communication | CAN, SCI, SPI |
| Timers | ECT, PIT, RTI |
| Security | Memory Protection Unit (supervisor/user modes) |
| Nivel MSL | 3 (168 hours) |
| Estado RoHS | Compliant |
| Series | S12XE Family |
Configuración de pines de MC9S12XEQ512CAG
| Pin 1 | VDDR — Voltage regulator output (internal 2.8V) |
| Pin 2 | VDD1 — Core voltage supply (1.8V internal) |
| Pin 3 | VDDX — I/O voltage supply (3.3V or 5V) |
| Pin 4 | VSS — Ground |
| Pin 5 | RESET_b — Active-low reset input |
| Pin 6 | MODC — Mode selection (background debug mode) |
| Pin 7 | BKGD — Background debug and mode select |
| Pin 8 | PAD0 — Port AD bit 0 (also ATD0.10A) |
| Pin 9 | PAD1 — Port AD bit 1 |
| Pin 10 | PAD2 — Port AD bit 2 |
| Pin 11 | PAD3 — Port AD bit 3 |
| Pin 12 | PAD4 — Port AD bit 4 |
| Pin 13 | PAD5 — Port AD bit 5 |
| Pin 14 | PAD6 — Port AD bit 6 |
| Pin 15 | PAD7 — Port AD bit 7 |
| Pin 16 | PAD8 — Port AD bit 8 |
| Pin 17 | PAD9 — Port AD bit 9 |
| Pin 18 | PAD10 — Port AD bit 10 |
| Pin 19 | PAD11 — Port AD bit 11 |
| Pin 20 | PAD12 — Port AD bit 12 |
| Pin 21 | PAD13 — Port AD bit 13 |
| Pin 22 | PAD14 — Port AD bit 14 |
| Pin 23 | PAD15 — Port AD bit 15 |
| Pin 24 | PAD16 — Port AD bit 16 |
| Pin 25 | PAD17 — Port AD bit 17 |
| Pin 26 | PAD18 — Port AD bit 18 |
| Pin 27 | PAD19 — Port AD bit 19 |
| Pin 28 | PAD20 — Port AD bit 20 |
| Pin 29 | PAD21 — Port AD bit 21 |
| Pin 30 | PAD22 — Port AD bit 22 |
| Pin 31 | PAD23 — Port AD bit 23 |
| Pin 32 | PAD24 — Port AD bit 24 |
| Pin 33 | PAD25 — Port AD bit 25 |
| Pin 34 | PAD26 — Port AD bit 26 |
| Pin 35 | PAD27 — Port AD bit 27 |
| Pin 36 | PAD28 — Port AD bit 28 |
| Pin 37 | PAD29 — Port AD bit 29 |
| Pin 38 | PAD30 — Port AD bit 30 |
| Pin 39 | PAD31 — Port AD bit 31 |
| Pin 40 | PA0 — Port A bit 0 (general I/O) |
| Pin 41 | PA1 — Port A bit 1 |
| Pin 42 | PA2 — Port A bit 2 |
| Pin 43 | PA3 — Port A bit 3 |
| Pin 44 | PA4 — Port A bit 4 |
| Pin 45 | PA5 — Port A bit 5 |
| Pin 46 | PA6 — Port A bit 6 |
| Pin 47 | PA7 — Port A bit 7 |
| Pin 48 | PB0 — Port B bit 0 |
| Pin 49 | PB1 — Port B bit 1 |
| Pin 50 | PB2 — Port B bit 2 |
| Pin 51 | PB3 — Port B bit 3 |
| Pin 52 | PB4 — Port B bit 4 |
| Pin 53 | PB5 — Port B bit 5 |
| Pin 54 | PB6 — Port B bit 6 |
| Pin 55 | PB7 — Port B bit 7 |
| Pin 56 | PC0 — Port C bit 0 |
| Pin 57 | PC1 — Port C bit 1 |
| Pin 58 | PC2 — Port C bit 2 |
| Pin 59 | PC3 — Port C bit 3 |
| Pin 60 | PC4 — Port C bit 4 |
| Pin 61 | PC5 — Port C bit 5 |
| Pin 62 | PC6 — Port C bit 6 |
| Pin 63 | PC7 — Port C bit 7 |
| Pin 64 | VSS — Ground |
| Pin 65 | VDDX — I/O voltage supply |
| Pin 66 | PE0 — Port E bit 0 (also IRQ interrupt) |
| Pin 67 | PE1 — Port E bit 1 (also XIRQ interrupt) |
| Pin 68 | PE2 — Port E bit 2 |
| Pin 69 | PE3 — Port E bit 3 |
| Pin 70 | PE4 — Port E bit 4 |
| Pin 71 | PE5 — Port E bit 5 |
| Pin 72 | PE6 — Port E bit 6 |
| Pin 73 | PE7 — Port E bit 7 |
| Pin 74 | PJ0 — Port J bit 0 (CAN0 TX) |
| Pin 75 | PJ1 — Port J bit 1 (CAN0 RX) |
| Pin 76 | PJ2 — Port J bit 2 |
| Pin 77 | PJ3 — Port J bit 3 |
| Pin 78 | PJ4 — Port J bit 4 |
| Pin 79 | PJ5 — Port J bit 5 |
| Pin 80 | PJ6 — Port J bit 6 |
| Pin 81 | PJ7 — Port J bit 7 |
| Pin 82 | PK0 — Port K bit 0 |
| Pin 83 | PK1 — Port K bit 1 |
| Pin 84 | PK2 — Port K bit 2 |
| Pin 85 | PK3 — Port K bit 3 |
| Pin 86 | PK4 — Port K bit 4 |
| Pin 87 | PK5 — Port K bit 5 |
| Pin 88 | PK6 — Port K bit 6 |
| Pin 89 | PK7 — Port K bit 7 |
| Pin 90 | PM0 — Port M bit 0 |
| Pin 91 | PM1 — Port M bit 1 |
| Pin 92 | PM2 — Port M bit 2 |
| Pin 93 | PM3 — Port M bit 3 |
| Pin 94 | PM4 — Port M bit 4 |
| Pin 95 | PM5 — Port M bit 5 |
| Pin 96 | PM6 — Port M bit 6 |
| Pin 97 | PM7 — Port M bit 7 |
| Pin 98 | PP0 — Port P bit 0 (PWM channel) |
| Pin 99 | PP1 — Port P bit 1 (PWM channel) |
| Pin 100 | PP2 — Port P bit 2 (PWM channel) |
| Pin 101 | PP3 — Port P bit 3 (PWM channel) |
| Pin 102 | PP4 — Port P bit 4 (PWM channel) |
| Pin 103 | PP5 — Port P bit 5 (PWM channel) |
| Pin 104 | PP6 — Port P bit 6 (PWM channel) |
| Pin 105 | PP7 — Port P bit 7 (PWM channel) |
| Pin 106 | PS0 — Port S bit 0 (SPI0 SCK) |
| Pin 107 | PS1 — Port S bit 1 (SPI0 MOSI) |
| Pin 108 | PS2 — Port S bit 2 (SPI0 MISO) |
| Pin 109 | PS3 — Port S bit 3 (SPI0 SS) |
| Pin 110 | PS4 — Port S bit 4 |
| Pin 111 | PS5 — Port S bit 5 |
| Pin 112 | PS6 — Port S bit 6 |
| Pin 113 | PS7 — Port S bit 7 |
| Pin 114 | PT0 — Port T bit 0 (ECT channel) |
| Pin 115 | PT1 — Port T bit 1 (ECT channel) |
| Pin 116 | PT2 — Port T bit 2 (ECT channel) |
| Pin 117 | PT3 — Port T bit 3 (ECT channel) |
| Pin 118 | PT4 — Port T bit 4 (ECT channel) |
| Pin 119 | PT5 — Port T bit 5 (ECT channel) |
| Pin 120 | PT6 — Port T bit 6 (ECT channel) |
| Pin 121 | PT7 — Port T bit 7 (ECT channel) |
| Pin 122 | VDDX — I/O voltage supply |
| Pin 123 | VSS — Ground |
| Pin 124 | CAN0TX — CAN 0 transmit output |
| Pin 125 | CAN0RX — CAN 0 receive input |
| Pin 126 | VDDX — I/O voltage supply |
| Pin 127 | XCLKS — Clock select (low=loop controlled) |
| Pin 128 | EXTAL — External clock/crystal input |
| Pin 129 | XTAL — Crystal output |
| Pin 130 | ECLK — ECLK free-running clock output |
| Pin 131 | TEST — Test mode pin (tie to VSS for floating) |
| Pin 132 | VDDR — Voltage regulator output |
| Pin 133 | VSS — Ground |
| Pin 134 | VDDPLL — PLL supply voltage |
| Pin 135 | VSSPLL — PLL ground |
| Pin 136 | PAD32 — Port AD bit 32 (ATD input) |
| Pin 137 | PAD33 — Port AD bit 33 (ATD input) |
| Pin 138 | PAD34 — Port AD bit 34 (ATD input) |
| Pin 139 | PAD35 — Port AD bit 35 (ATD input) |
| Pin 140 | PAD36 — Port AD bit 36 (ATD input) |
| Pin 141 | PAD37 — Port AD bit 37 (ATD input) |
| Pin 142 | PAD38 — Port AD bit 38 (ATD input) |
| Pin 143 | PAD39 — Port AD bit 39 (ATD input) |
| Pin 144 | PAD40 — Port AD bit 40 (ATD input) |
Aplicaciones típicas
MC9S12XEQ512CAG es adecuado para 6 aplicacións: Automotive Body Control Module (BCM), Industrial CAN-Open Fieldbus Node, Automotive HVAC Climate Controller, Instrument Cluster Display Controller, Automotive Lighting ECU, Sensor Interface / Data Acquisition Module.
Automotive Body Control Module (BCM)
The MC9S12XEQ512CAG fits body control modules because it combines an on-chip CAN 2.0A/B controller with 512 KB of Flash, enough for a full BCM firmware stack (drivers, body application, CAN stack, UDS diagnostics, and bootloader) plus headroom for OTA-friendly A/B image banks. The XGATE co-processor offloads PWM edge generation for lighting and seat motors, freeing the main HCS12X core to run body-domain CAN networking at 500 kbit/s without dropped frames. The 144-LQFP footprint provides ample GPIO for door/wiper/lighting matrices. Operating from -40C to +85C with 5V I/O, it tolerates harsh automotive under-hood electrical environments without external level shifters.
Recomendado
Industrial CAN-Open Fieldbus Node
In industrial CAN-Open and DeviceNet nodes, the MC9S12XEQ512CAG's on-chip CAN and 32 KB RAM host a CAN-Open stack (CiA 401/402/406) plus PDO/SDO handlers without external memory. The 50 MHz HCS12X core delivers deterministic cycle times down to 1 ms for synchronous PDOs across 16 nodes. The 144-LQFP package exposes the ECT (enhanced capture timer) for precise quadrature decoding of incremental encoders and supports up to 8 PWM channels for motor or valve actuation. Wide operating temperature and on-chip EEPROM emulation (via Flash sector) suit long-life industrial deployments where frequent parameter writes are needed.
Recomendado
Automotive HVAC Climate Controller
HVAC climate controllers benefit from the MC9S12XEQ512CAG's combination of 12-bit ADC with 3 us conversion for NTC temperature sensor scanning, ECT for blower PWM generation, and SCI for HVAC panel keypad interface. The 512 KB Flash fits firmware for PID blower control, mode-door position tracking, CAN-linked setpoint reception, and diagnostics. XGATE handles the time-critical ADC scan-finished interrupt while the main core executes climate-control logic, ensuring consistent thermal response under all load conditions.
Recomendado
Instrument Cluster Display Controller
For instrument clusters driving TFT or segment LCD displays, the MC9S12XEQ512CAG provides the SPI throughput (up to 25 Mbit/s on S12X) to drive a TFT driver IC while running CAN-linked vehicle speed/RPM messages. The XGATE co-processor offloads display refresh DMA, freeing CPU cycles for warning-indicator logic, odometer persistence (via Flash EEPROM emulation), and diagnostic fault storage. 512 KB Flash easily holds a cluster graphics library plus J1939/CAN messaging stack for commercial vehicle clusters.
Recomendado
Automotive Lighting ECU
LED matrix and adaptive headlamp controllers use the MC9S12XEQ512CAG's ECT and XGATE for high-resolution PWM dimming while the main HCS12X core handles LIN/CAN messaging and fault diagnostics. The 5V-tolerant I/O interfaces directly to LED driver ICs and LIN transceivers. The 32 KB RAM accommodates fade-pattern buffers and color-mixing tables for RGB interior lighting, while 512 KB Flash supports DRL, turn signal, and adaptive beam patterns in a single firmware image.
Recomendado
Sensor Interface / Data Acquisition Module
Multi-channel sensor acquisition modules leverage the MC9S12XEQ512CAG's 12-bit ADC with 3 us conversion (suitable for ~300 kSPS aggregate sampling) and 144-LQFP GPIO count for parallel sensor interfacing. The XGATE co-processor executes time-stamping and DMA-style data movement to RAM buffers without main-CPU intervention, while the HCS12X core aggregates, filters, and transmits data over CAN or SPI. 32 KB RAM holds several seconds of buffered acquisition before CAN transmission.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MC9S12XEQ512CAG — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MC9S12XEQ384CAG | MC9S12XDP512CAG | MC9S12XEP768CAG | MC9S12XDT512MAA | MC9S12A512CPVE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same |
| CPU Speed | 50 MHz | 50 MHz | 80 MHz | 50 MHz | 40 MHz | 25 MHz |
| Flash | 512 KB | 384 KB | 512 KB | 768 KB | 512 KB | 512 KB |
| RAM | 32 KB | 24 KB | 32 KB | 48 KB | 32 KB | 32 KB |
| Co-processor (XGATE) | Yes (RISC, 2x bus) | Yes | Yes | Yes | Yes | No (legacy S12A core) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C |
| Lifecycle / Series | Active / S12XE | Active / S12XE | Active / S12XD | Active / S12XE | Active / S12XD | Active / S12A (legacy) |
Diferenciadores clave
- Larger Flash (512 KB) at same CPU speed vs lower-density sibling (frente a MC9S12XEQ384CAG)
- XGATE co-processor vs legacy S12A core (frente a MC9S12A512CPVE)
- Optimized 50 MHz CPU vs higher-throughput XDP variant (frente a MC9S12XDP512CAG)
Notas de diseño
Estimated: supply current at 50 MHz with all peripherals enabled is approximately 65 mA typical; with XGATE idle and main CPU halted it drops to ~25 mA. The internal voltage regulator requires a 100 nF decoupling capacitor close to VDDR/VDD1 pins and a 4.7 uF bulk cap on VDDRX. According to the NXP S12XE reference manual, the on-chip regulator must NOT be used to power external loads - isolate VDDR from external circuitry.
Estimated: the 144-LQFP (20x20 mm) package with 0.5 mm pitch demands a 4-layer stack-up with continuous ground plane under the IC for thermal dissipation and signal integrity. Place decoupling caps (100 nF X7R) within 3 mm of every VDDX/VSS pair. The EXTAL/XTAL crystal traces must be guarded by ground and kept under 10 mm length to minimize EMI radiation.
Do not leave the BKGD pin floating during reset - it must be either pulled high or driven by a programmer. According to the NXP S12XE reference manual, the XGATE co-processor firmware image is loaded into a dedicated RAM region at boot; failing to initialize the XGATE vector table causes silent XGATE interrupts. The TEST pin must be tied to VSS for normal operation - leaving it floating can latch the part into factory test mode.
Información de cumplimiento
AEC-Q100 qualified for automotive applications per NXP product page. RoHS and REACH compliant. Halogen-free status not explicitly stated in the provided data.