MC9S12XEQ512CAG - 16-Bit S12X MCU, 512KB Flash, 50MHz, 144-LQFP | NXP
Référence : MC9S12XEQ512CAG ✓ Actif| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour MC9S12XEQ512CAG — 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 MC9S12XEQ512CAG (même facteur de forme et même empreinte) — différant par Package, Operating Temperature, Supply Voltage, Core, ADC.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC9S12XEQ384CAG
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →MC9S12XDP512CAG
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S12XEP768CAG
✅ Remplacement direct✓ En stock
$19.85 / unité
Voir la fiche technique →MC9S12XDT512MAA
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →MC9S12A512CPVE
✅ Remplacement direct✓ En stock
$10.45 / unité
Voir la fiche technique →MC9S12XEQ512CAG Valeurs maximales et caractéristiques électriques
| 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) |
| Température de fonctionnement | -40 C to +85 C |
| Boîtier | 144-LQFP (20 x 20 mm) |
| Type de montage | Surface Mount |
| Communication | CAN, SCI, SPI |
| Timers | ECT, PIT, RTI |
| Security | Memory Protection Unit (supervisor/user modes) |
| Niveau MSL | 3 (168 hours) |
| Statut RoHS | Compliant |
| Series | S12XE Family |
Configuration des broches de MC9S12XEQ512CAG
| Broche 1 | VDDR — Voltage regulator output (internal 2.8V) |
| Broche 2 | VDD1 — Core voltage supply (1.8V internal) |
| Broche 3 | VDDX — I/O voltage supply (3.3V or 5V) |
| Broche 4 | VSS — Ground |
| Broche 5 | RESET_b — Active-low reset input |
| Broche 6 | MODC — Mode selection (background debug mode) |
| Broche 7 | BKGD — Background debug and mode select |
| Broche 8 | PAD0 — Port AD bit 0 (also ATD0.10A) |
| Broche 9 | PAD1 — Port AD bit 1 |
| Broche 10 | PAD2 — Port AD bit 2 |
| Broche 11 | PAD3 — Port AD bit 3 |
| Broche 12 | PAD4 — Port AD bit 4 |
| Broche 13 | PAD5 — Port AD bit 5 |
| Broche 14 | PAD6 — Port AD bit 6 |
| Broche 15 | PAD7 — Port AD bit 7 |
| Broche 16 | PAD8 — Port AD bit 8 |
| Broche 17 | PAD9 — Port AD bit 9 |
| Broche 18 | PAD10 — Port AD bit 10 |
| Broche 19 | PAD11 — Port AD bit 11 |
| Broche 20 | PAD12 — Port AD bit 12 |
| Broche 21 | PAD13 — Port AD bit 13 |
| Broche 22 | PAD14 — Port AD bit 14 |
| Broche 23 | PAD15 — Port AD bit 15 |
| Broche 24 | PAD16 — Port AD bit 16 |
| Broche 25 | PAD17 — Port AD bit 17 |
| Broche 26 | PAD18 — Port AD bit 18 |
| Broche 27 | PAD19 — Port AD bit 19 |
| Broche 28 | PAD20 — Port AD bit 20 |
| Broche 29 | PAD21 — Port AD bit 21 |
| Broche 30 | PAD22 — Port AD bit 22 |
| Broche 31 | PAD23 — Port AD bit 23 |
| Broche 32 | PAD24 — Port AD bit 24 |
| Broche 33 | PAD25 — Port AD bit 25 |
| Broche 34 | PAD26 — Port AD bit 26 |
| Broche 35 | PAD27 — Port AD bit 27 |
| Broche 36 | PAD28 — Port AD bit 28 |
| Broche 37 | PAD29 — Port AD bit 29 |
| Broche 38 | PAD30 — Port AD bit 30 |
| Broche 39 | PAD31 — Port AD bit 31 |
| Broche 40 | PA0 — Port A bit 0 (general I/O) |
| Broche 41 | PA1 — Port A bit 1 |
| Broche 42 | PA2 — Port A bit 2 |
| Broche 43 | PA3 — Port A bit 3 |
| Broche 44 | PA4 — Port A bit 4 |
| Broche 45 | PA5 — Port A bit 5 |
| Broche 46 | PA6 — Port A bit 6 |
| Broche 47 | PA7 — Port A bit 7 |
| Broche 48 | PB0 — Port B bit 0 |
| Broche 49 | PB1 — Port B bit 1 |
| Broche 50 | PB2 — Port B bit 2 |
| Broche 51 | PB3 — Port B bit 3 |
| Broche 52 | PB4 — Port B bit 4 |
| Broche 53 | PB5 — Port B bit 5 |
| Broche 54 | PB6 — Port B bit 6 |
| Broche 55 | PB7 — Port B bit 7 |
| Broche 56 | PC0 — Port C bit 0 |
| Broche 57 | PC1 — Port C bit 1 |
| Broche 58 | PC2 — Port C bit 2 |
| Broche 59 | PC3 — Port C bit 3 |
| Broche 60 | PC4 — Port C bit 4 |
| Broche 61 | PC5 — Port C bit 5 |
| Broche 62 | PC6 — Port C bit 6 |
| Broche 63 | PC7 — Port C bit 7 |
| Broche 64 | VSS — Ground |
| Broche 65 | VDDX — I/O voltage supply |
| Broche 66 | PE0 — Port E bit 0 (also IRQ interrupt) |
| Broche 67 | PE1 — Port E bit 1 (also XIRQ interrupt) |
| Broche 68 | PE2 — Port E bit 2 |
| Broche 69 | PE3 — Port E bit 3 |
| Broche 70 | PE4 — Port E bit 4 |
| Broche 71 | PE5 — Port E bit 5 |
| Broche 72 | PE6 — Port E bit 6 |
| Broche 73 | PE7 — Port E bit 7 |
| Broche 74 | PJ0 — Port J bit 0 (CAN0 TX) |
| Broche 75 | PJ1 — Port J bit 1 (CAN0 RX) |
| Broche 76 | PJ2 — Port J bit 2 |
| Broche 77 | PJ3 — Port J bit 3 |
| Broche 78 | PJ4 — Port J bit 4 |
| Broche 79 | PJ5 — Port J bit 5 |
| Broche 80 | PJ6 — Port J bit 6 |
| Broche 81 | PJ7 — Port J bit 7 |
| Broche 82 | PK0 — Port K bit 0 |
| Broche 83 | PK1 — Port K bit 1 |
| Broche 84 | PK2 — Port K bit 2 |
| Broche 85 | PK3 — Port K bit 3 |
| Broche 86 | PK4 — Port K bit 4 |
| Broche 87 | PK5 — Port K bit 5 |
| Broche 88 | PK6 — Port K bit 6 |
| Broche 89 | PK7 — Port K bit 7 |
| Broche 90 | PM0 — Port M bit 0 |
| Broche 91 | PM1 — Port M bit 1 |
| Broche 92 | PM2 — Port M bit 2 |
| Broche 93 | PM3 — Port M bit 3 |
| Broche 94 | PM4 — Port M bit 4 |
| Broche 95 | PM5 — Port M bit 5 |
| Broche 96 | PM6 — Port M bit 6 |
| Broche 97 | PM7 — Port M bit 7 |
| Broche 98 | PP0 — Port P bit 0 (PWM channel) |
| Broche 99 | PP1 — Port P bit 1 (PWM channel) |
| Broche 100 | PP2 — Port P bit 2 (PWM channel) |
| Broche 101 | PP3 — Port P bit 3 (PWM channel) |
| Broche 102 | PP4 — Port P bit 4 (PWM channel) |
| Broche 103 | PP5 — Port P bit 5 (PWM channel) |
| Broche 104 | PP6 — Port P bit 6 (PWM channel) |
| Broche 105 | PP7 — Port P bit 7 (PWM channel) |
| Broche 106 | PS0 — Port S bit 0 (SPI0 SCK) |
| Broche 107 | PS1 — Port S bit 1 (SPI0 MOSI) |
| Broche 108 | PS2 — Port S bit 2 (SPI0 MISO) |
| Broche 109 | PS3 — Port S bit 3 (SPI0 SS) |
| Broche 110 | PS4 — Port S bit 4 |
| Broche 111 | PS5 — Port S bit 5 |
| Broche 112 | PS6 — Port S bit 6 |
| Broche 113 | PS7 — Port S bit 7 |
| Broche 114 | PT0 — Port T bit 0 (ECT channel) |
| Broche 115 | PT1 — Port T bit 1 (ECT channel) |
| Broche 116 | PT2 — Port T bit 2 (ECT channel) |
| Broche 117 | PT3 — Port T bit 3 (ECT channel) |
| Broche 118 | PT4 — Port T bit 4 (ECT channel) |
| Broche 119 | PT5 — Port T bit 5 (ECT channel) |
| Broche 120 | PT6 — Port T bit 6 (ECT channel) |
| Broche 121 | PT7 — Port T bit 7 (ECT channel) |
| Broche 122 | VDDX — I/O voltage supply |
| Broche 123 | VSS — Ground |
| Broche 124 | CAN0TX — CAN 0 transmit output |
| Broche 125 | CAN0RX — CAN 0 receive input |
| Broche 126 | VDDX — I/O voltage supply |
| Broche 127 | XCLKS — Clock select (low=loop controlled) |
| Broche 128 | EXTAL — External clock/crystal input |
| Broche 129 | XTAL — Crystal output |
| Broche 130 | ECLK — ECLK free-running clock output |
| Broche 131 | TEST — Test mode pin (tie to VSS for floating) |
| Broche 132 | VDDR — Voltage regulator output |
| Broche 133 | VSS — Ground |
| Broche 134 | VDDPLL — PLL supply voltage |
| Broche 135 | VSSPLL — PLL ground |
| Broche 136 | PAD32 — Port AD bit 32 (ATD input) |
| Broche 137 | PAD33 — Port AD bit 33 (ATD input) |
| Broche 138 | PAD34 — Port AD bit 34 (ATD input) |
| Broche 139 | PAD35 — Port AD bit 35 (ATD input) |
| Broche 140 | PAD36 — Port AD bit 36 (ATD input) |
| Broche 141 | PAD37 — Port AD bit 37 (ATD input) |
| Broche 142 | PAD38 — Port AD bit 38 (ATD input) |
| Broche 143 | PAD39 — Port AD bit 39 (ATD input) |
| Broche 144 | PAD40 — Port AD bit 40 (ATD input) |
Applications typiques
MC9S12XEQ512CAG convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9S12XEQ512CAG — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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) |
Principaux différenciateurs
- Larger Flash (512 KB) at same CPU speed vs lower-density sibling (vs MC9S12XEQ384CAG)
- XGATE co-processor vs legacy S12A core (vs MC9S12A512CPVE)
- Optimized 50 MHz CPU vs higher-throughput XDP variant (vs MC9S12XDP512CAG)
Notes de conception
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.
Informations de conformité
AEC-Q100 qualified for automotive applications per NXP product page. RoHS and REACH compliant. Halogen-free status not explicitly stated in the provided data.