NXP Semiconductors

MC9S12XEQ512MAG - S12X 16-bit MCU 512KB Flash 50MHz LQFP-144 | NXP

Référence : MC9S12XEQ512MAG ✓ Actif
En stock Expédié sous 1 à 3 jours ouvrés
1.72 V to 1.98 V (core) / 2.8 V / 5 V I/O Vdss 144-pin LQFP (20x20 mm) Package 50 MHz Speed 512 KB Memory
À partir de $9.75 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-10-19
Tarifs dégressifs
Qté Prix unitaire Total
1 $14.5 $14,50
10 $13.1 $131,00
100 $11.8 $1 180,00
500 $10.6 $5 300,00
1 000 $9.75 $9 750,00
ℹ️ Tous les prix sont en USD

MC9S12XEQ512MAG Présentation

The NXP MC9S12XEQ512MAG is a 16-bit HCS12X microcontroller with 512 KB of on-chip Flash, 50 MHz CPU bus speed, and an integrated XGATE co-processor for offloading interrupt-driven peripheral tasks, housed in a 144-pin LQFP (20x20 mm) package rated for the automotive -40C to +125C temperature range. It is part of the S12XEQ family and is qualified to AEC-Q100 for body and chassis automotive applications.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash, RAM, EEPROM), and programmable peripherals on one die. Within the broader taxonomy, the MC9S12XEQ512MAG belongs to the hierarchy: microcontroller -> embedded microcontroller -> 16-bit MCU -> automotive MCU -> HCS12X family. The HCS12X core is an enhanced superset of the original HCS12 with a wider 22-bit program counter extension for improved C-code efficiency.

Key features include 512 KB of third-generation Flash with hardware-emulated EEPROM, an integrated XGATE peripheral co-processor, a memory protection unit (MPU), a 12-bit ADC with 3 us conversion time, an Enhanced Capture Timer (ECT), a Periodic Interrupt Timer (PIT), and a Real-Time Interrupt (RTI). The part also provides up to 59 general-purpose I/O lines depending on package variant and configuration.

Technically, the device runs from a single 1.8V core / 2.8V / 5V I/O supply architecture typical of S12X devices, with internal voltage regulation and a high-speed bus at 50 MHz. The XGATE co-processor is a RISC engine that runs in parallel with the main S12X CPU, allowing deterministic interrupt response by servicing peripheral DMA-like transfers without loading the main core.

Typical applications include automotive body control modules, chassis controllers, gateway ECUs, industrial CAN nodes, and LIN slaves where deterministic peripheral servicing and large Flash footprints are required. Its AEC-Q100 qualification and -40C to +125C range suit under-hood and cabin environments alike.

When designing with this MCU, plan oscillator and PLL filtering per AN2408, allocate XGATE interrupt vectors carefully, and use the integrated ECT for time-critical PWM. Note: This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

Alternatives de remplacement direct pour MC9S12XEQ512MAG — 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 MC9S12XEQ512MAG (même facteur de forme et même empreinte) — différant par Package, Operating Temperature, Core Architecture, ADC, EEPROM.

NXP Semiconductors
Package: 144-LQFP (20 x 20 mm)
Operating Temperature: -40C to +125C (Automotive grade)
Core Architecture: HCS12X (S12XD)
Comparer avec MC9S12XEQ512MAG →
NXP Semiconductors
Package: 80-pin LQFP (14x14 mm)
Operating Temperature: -40C to +85C (MAA suffix)
Core Architecture: HCS12X (S12X CPU + XGATE co-processor)
Comparer avec MC9S12XEQ512MAG →
NXP Semiconductors
Package: 144-LQFP (20 x 20 mm)
Operating Temperature: -40 C to +85 C
Comparer avec MC9S12XEQ512MAG →
NXP Semiconductors
Package: 144-LQFP (20x20 mm), gull-wing terminals
Operating Temperature: -40C to +125C (TA), automotive grade
Core Architecture: RISC (S12X CPU with XGATE co-processor)
Comparer avec MC9S12XEQ512MAG →
NXP Semiconductors
Package: 144-LQFP (20x20 mm)
Core Architecture: HCS12X (16-bit CISC)
Comparer avec MC9S12XEQ512MAG →

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

MC9S12XEQ512CAG

✅ Remplacement direct
NXP Semiconductors
📦 144-LQFP (20x20)
HCS12X (16-bit CISC) · XGATE (RISC, 2x bus speed) · 50 MHz · 512 KB (512K x 8) · 32 KB · 12-bit, 3 us conversion time · 1.8 V / 2.8 V / 5 V (multi-supply I/O)

✓ En stock

$14.4 / unité

Voir la fiche technique →

MC9S12XEQ512MAL

✅ Remplacement direct
📦 144-LQFP (20x20)
same 144-LQFP package and Flash size; differing suffix denotes minor mask revision and supply voltage tolerance

📋 Alternative de référence (hors catalogue)

S912XEQ512J3MAG

✅ Remplacement direct
NXP Semiconductors
📦 144-LQFP (20x20)
HCS12X (S12X) 16-bit · RISC (S12X CPU with XGATE co-processor) · 50 MHz · 512 KB (512K x 8) · 32K x 8 · Hardware-emulated, programmable (flexible) · 12 bit · 3 us

✓ En stock

$14.8 / unité

Voir la fiche technique →

MC9S12XEG128MAA

✅ Remplacement direct
NXP Semiconductors
📦 144-LQFP (20x20)
HCS12X (S12X CPU + XGATE co-processor) · 16-bit CISC · 50 MHz · 128 KB (128K x 8) · 12 KB · 2 KB · 1.8V / 2.8V / 5V (single supply 5V) · 12-bit, 16 channels, 3 us conversion time

✓ En stock

$8.9 / unité

Voir la fiche technique →

MC9S12XDP512CAL

✅ Remplacement direct
📦 144-LQFP (20x20)
same 144-LQFP package, 512 KB Flash, S12X core at 40 MHz (-20% vs 50 MHz target); lacks XGATE

📋 Alternative de référence (hors catalogue)

MC9S12XEQ512MAG Valeurs maximales et caractéristiques électriques

Core HCS12X (16-bit)
Core Co-processor XGATE (RISC peripheral engine)
CPU Bus Speed 50 MHz
Program Flash 512 KB
EEPROM Hardware-emulated EEPROM via Flash
ADC 12-bit, 3 us conversion time
Timer Modules ECT, PIT, RTI
Tension d'alimentation 1.72 V to 1.98 V (core) / 2.8 V / 5 V I/O
Température de fonctionnement -40C to +125C (automotive)
Boîtier 144-pin LQFP (20x20 mm)
I/O Lines Up to 59 (package dependent)
Type de montage Surface Mount
Memory Protection Yes (MPU, supervisor/user modes)
AEC-Q100 Qualified
Statut RoHS Compliant

Configuration des broches de MC9S12XEQ512MAG

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
Broche 1 PP0 — Port P bit 0 / ECT channel
Broche 2 PP1 — Port P bit 1 / ECT channel
Broche 3 PP2 — Port P bit 2 / ECT channel
Broche 4 PP3 — Port P bit 3 / ECT channel
Broche 5 PP4 — Port P bit 4 / ECT channel
Broche 6 PP5 — Port P bit 5 / ECT channel
Broche 7 PP6 — Port P bit 6 / ECT channel
Broche 8 PP7 — Port P bit 7 / ECT channel
Broche 9 VDDR — External 5 V regulator input
Broche 10 VDD1 — Internal core 1.8 V decoupling
Broche 11 VSS1 — Core ground
Broche 12 VDD2 — Internal core 1.8 V decoupling
Broche 13 VSS2 — Core ground
Broche 14 BKGD — Background Debug Mode pin
Broche 15 RESET — Reset input (active low)
Broche 16 XCLKS — Clock select / oscillator mode
Broche 17 EXTAL — External clock / crystal input
Broche 18 XTAL — Crystal output
Broche 19 VDDPLL — PLL supply
Broche 20 VSSPLL — PLL ground
Broche 21 PM0 — Port M bit 0 / CAN0 TX
Broche 22 PM1 — Port M bit 1 / CAN0 RX
Broche 23 PM2 — Port M bit 2
Broche 24 PM3 — Port M bit 3
Broche 25 PM4 — Port M bit 4
Broche 26 PM5 — Port M bit 5
Broche 27 PM6 — Port M bit 6
Broche 28 PM7 — Port M bit 7
Broche 29 PJ0 — Port J bit 0
Broche 30 PJ1 — Port J bit 1
Broche 31 PJ2 — Port J bit 2
Broche 32 PJ3 — Port J bit 3
Broche 33 PJ4 — Port J bit 4
Broche 34 PJ5 — Port J bit 5
Broche 35 PJ6 — Port J bit 6
Broche 36 PJ7 — Port J bit 7
Broche 37 PAD0 — Port A bit 0 / ADC0
Broche 38 PAD1 — Port A bit 1 / ADC1
Broche 39 PAD2 — Port A bit 2 / ADC2
Broche 40 PAD3 — Port A bit 3 / ADC3
Broche 41 PAD4 — Port A bit 4 / ADC4
Broche 42 PAD5 — Port A bit 5 / ADC5
Broche 43 PAD6 — Port A bit 6 / ADC6
Broche 44 PAD7 — Port A bit 7 / ADC7
Broche 45 PAD8 — Port A bit 8 / ADC8
Broche 46 PAD9 — Port A bit 9 / ADC9
Broche 47 PAD10 — Port A bit 10 / ADC10
Broche 48 PAD11 — Port A bit 11 / ADC11
Broche 49 PAD12 — Port A bit 12 / ADC12
Broche 50 PAD13 — Port A bit 13 / ADC13
Broche 51 PAD14 — Port A bit 14 / ADC14
Broche 52 PAD15 — Port A bit 15 / ADC15
Broche 53 PB0 — Port B bit 0
Broche 54 PB1 — Port B bit 1
Broche 55 PB2 — Port B bit 2
Broche 56 PB3 — Port B bit 3
Broche 57 PB4 — Port B bit 4
Broche 58 PB5 — Port B bit 5
Broche 59 PB6 — Port B bit 6
Broche 60 PB7 — Port B bit 7
Broche 61 PE0 — Port E bit 0 / IRQ
Broche 62 PE1 — Port E bit 1 / IRQ
Broche 63 PE2 — Port E bit 2 / XIRQ
Broche 64 PE3 — Port E bit 3
Broche 65 PE4 — Port E bit 4 / SCI0 TX
Broche 66 PE5 — Port E bit 5 / SCI0 RX
Broche 67 PE6 — Port E bit 6
Broche 68 PE7 — Port E bit 7
Broche 69 PS0 — Port S bit 0 / SPI0 SCK
Broche 70 PS1 — Port S bit 1 / SPI0 MOSI
Broche 71 PS2 — Port S bit 2 / SPI0 MISO
Broche 72 PS3 — Port S bit 3 / SPI0 SS
Broche 73 PS4 — Port S bit 4
Broche 74 PS5 — Port S bit 5
Broche 75 PS6 — Port S bit 6
Broche 76 PS7 — Port S bit 7
Broche 77 PT0 — Port T bit 0 / ECT IOC0
Broche 78 PT1 — Port T bit 1 / ECT IOC1
Broche 79 PT2 — Port T bit 2 / ECT IOC2
Broche 80 PT3 — Port T bit 3 / ECT IOC3
Broche 81 PT4 — Port T bit 4 / ECT IOC4
Broche 82 PT5 — Port T bit 5 / ECT IOC5
Broche 83 PT6 — Port T bit 6 / ECT IOC6
Broche 84 PT7 — Port T bit 7 / ECT IOC7
Broche 85 VDDX — I/O supply (2.8 V or 5 V)
Broche 86 VSSX — I/O ground
Broche 87 VDDA — ADC supply
Broche 88 VSSA — ADC ground
Broche 89 VRH — ADC reference high
Broche 90 VRL — ADC reference low
Broche 91 PAD16 — Port A bit 16 / ADC16
Broche 92 PAD17 — Port A bit 17 / ADC17
Broche 93 PAD18 — Port A bit 18 / ADC18
Broche 94 PAD19 — Port A bit 19 / ADC19
Broche 95 PAD20 — Port A bit 20 / ADC20
Broche 96 PAD21 — Port A bit 21 / ADC21
Broche 97 PAD22 — Port A bit 22 / ADC22
Broche 98 PAD23 — Port A bit 23 / ADC23
Broche 99 PK0 — Port K bit 0
Broche 100 PK1 — Port K bit 1
Broche 101 PK2 — Port K bit 2
Broche 102 PK3 — Port K bit 3
Broche 103 PK4 — Port K bit 4
Broche 104 PK5 — Port K bit 5
Broche 105 PK6 — Port K bit 6
Broche 106 PK7 — Port K bit 7
Broche 107 PH0 — Port H bit 0 / SPI1 SCK
Broche 108 PH1 — Port H bit 1 / SPI1 MOSI
Broche 109 PH2 — Port H bit 2 / SPI1 MISO
Broche 110 PH3 — Port H bit 3 / SPI1 SS
Broche 111 PH4 — Port H bit 4
Broche 112 PH5 — Port H bit 5
Broche 113 PH6 — Port H bit 6
Broche 114 PH7 — Port H bit 7
Broche 115 PJ0 — Port J bit 0 alt
Broche 116 PJ1 — Port J bit 1 alt
Broche 117 VSSX2 — Secondary I/O ground
Broche 118 VDDX2 — Secondary I/O supply
Broche 119 MODC — Mode select
Broche 120 TCLK — ECT clock input
Broche 121 PA0 — Port A bit 0 alt
Broche 122 PA1 — Port A bit 1 alt
Broche 123 PA2 — Port A bit 2 alt
Broche 124 PA3 — Port A bit 3 alt
Broche 125 PA4 — Port A bit 4 alt
Broche 126 PA5 — Port A bit 5 alt
Broche 127 PA6 — Port A bit 6 alt
Broche 128 PA7 — Port A bit 7 alt
Broche 129 PP0 — Port P bit 0 alt
Broche 130 PP1 — Port P bit 1 alt
Broche 131 PP2 — Port P bit 2 alt
Broche 132 PP3 — Port P bit 3 alt
Broche 133 PP4 — Port P bit 4 alt
Broche 134 PP5 — Port P bit 5 alt
Broche 135 PP6 — Port P bit 6 alt
Broche 136 PP7 — Port P bit 7 alt
Broche 137 VDDR — Secondary 5 V regulator input
Broche 138 VSS3 — Ground
Broche 139 VDD3 — Internal core 1.8 V
Broche 140 VSS4 — Ground
Broche 141 VDD4 — Internal core 1.8 V
Broche 142 NC — Not connected (per datasheet)
Broche 143 NC — Not connected (per datasheet)
Broche 144 NC — Not connected (per datasheet)

Applications typiques

MC9S12XEQ512MAG convient pour 6 applications: Automotive Body Control Module (BCM), Automotive Gateway ECU, Industrial CAN Node Controller, Chassis and Suspension ECU, Automotive Instrument Cluster, Power Train Edge Node (Sensor / Actuator).

🚗

Automotive Body Control Module (BCM)

The MC9S12XEQ512MAG fits BCM designs because its 512 KB Flash holds large lighting/wiper/seat calibration tables while the XGATE co-processor deterministically services CAN/LIN message buffers at high bus traffic. Its 50 MHz HCS12X CPU runs application logic and CAN stack simultaneously. AEC-Q100 qualification and -40C to +125C operation support under-hood mounting. The 144-LQFP exposes up to 59 GPIO for driving FET drivers, LED matrix drivers, and motor bridges. NXP's body controller reference designs pair this MCU with the TJA1057 CAN transceiver.

🌐

Automotive Gateway ECU

In gateway ECUs, the MC9S12XEQ512MAG's XGATE accelerates multi-channel CAN message routing while the main CPU handles routing tables and diagnostics. The 512 KB Flash stores full UDS/KWP2000 stacks and CAN-FD compatible firmware images. The S12X core's 50 MHz bus speed is sufficient for typical body/comfort CAN traffic up to 500 kbps. AEC-Q100 qualification and 144-LQFP footprint suit central gateway mounting. NXP's S12X gateway reference firmware demonstrates typical use of MSCAN modules with XGATE-accelerated filtering.

🏭

Industrial CAN Node Controller

The MC9S12XEQ512MAG supports industrial CANopen/J1939 nodes where deterministic message handling is critical. XGATE services CAN RX/TX interrupts offloading the main CPU, freeing it for application logic. 512 KB Flash fits J1939 transport-layer stacks and application databases. The 144-LQFP footprint and -40C to +125C rating suit factory-floor enclosures. NXP's industrial CANopen stack targets this exact MCU family. Pair with isolated CAN transceivers for high-EMI environments.

🚗

Chassis and Suspension ECU

The MC9S12XEQ512MAG handles chassis/suspension applications such as active suspension and steering angle sensors, leveraging XGATE to provide deterministic PWM generation for valve control. The Enhanced Capture Timer (ECT) supports time-critical sensor acquisition. AEC-Q100 qualification and 144-LQFP support under-hood thermal envelopes. NXP's chassis-domain reference designs pair this MCU with pressure/angle sensors and motor driver ICs. The 512 KB Flash fits complete control loops and diagnostic libraries.

📺

Automotive Instrument Cluster

The MC9S12XEQ512MAG drives stepper-motor gauges and segment/graphic LCDs in instrument clusters using its ECT for PWM and SPI for display interface. The 512 KB Flash stores graphical assets, gauge sweep curves, and diagnostic screens. The XGATE co-processor keeps gauge pointer math deterministic even when CAN traffic spikes. AEC-Q100 rating and -40C to +125C operation suit cabin mounting. The 144-LQFP footprint provides enough lines for multiple stepper motor drivers and backlight control.

⚡

Power Train Edge Node (Sensor / Actuator)

Edge nodes in power train systems use the MC9S12XEQ512MAG to monitor temperature, pressure, and position sensors while driving actuators and reporting over CAN. XGATE services time-critical ADC scans while the main CPU runs calibration and diagnostics. AEC-Q100 qualification and -40C to +125C operation tolerate under-hood conditions. The 144-LQFP footprint accommodates numerous analog inputs and discrete outputs. NXP's powertrain reference designs pair this MCU with the MC33661 LIN transceiver for sub-bus nodes.

Récapitulatif des produits recommandés

TJA1057T High-speed CAN transceiver companion Utilisé dans : Automotive Body Control Module (BCM) MC9S12XEQ512CAG NXP Semiconductors Utilisé dans : Automotive Body Control Module (BCM), Power Train Edge Node (Sensor / Actuator) TJA1043T NXP Semiconductors Utilisé dans : Automotive Gateway ECU S912XEQ512J3MAG NXP Semiconductors Utilisé dans : Automotive Gateway ECU TJA1052IT NXP Semiconductors Utilisé dans : Industrial CAN Node Controller MC9S12H256VFVE NXP Semiconductors Utilisé dans : Industrial CAN Node Controller MC33932VW H-bridge motor driver Utilisé dans : Chassis and Suspension ECU MMA8452Q Accelerometer companion sensor Utilisé dans : Chassis and Suspension ECU MC33937APEFR2 Three-phase BLDC pre-driver Utilisé dans : Automotive Instrument Cluster PCA85134 Segment LCD driver Utilisé dans : Automotive Instrument Cluster MC33661PEFR2G LIN transceiver for sub-bus Utilisé dans : Power Train Edge Node (Sensor / Actuator)
What is the operating voltage of MC9S12XEQ512MAG?
The MC9S12XEQ512MAG operates from a 1.72 V to 1.98 V core supply with 2.8 V or 5 V I/O rails, consistent with the S12X family. According to the NXP S12XEQ reference manual, the on-chip voltage regulator generates the internal 1.8 V core logic from an external 5 V VDDR pin. Designers should follow the AN2408 supply-decoupling guidelines to ensure regulator stability.
How much Flash memory does MC9S12XEQ512MAG have?
The MC9S12XEQ512MAG integrates 512 KB of third-generation Flash memory organized as 512K x 8 bits, plus a separate Flash block for hardware-emulated EEPROM. The 512 KB size supports large automotive calibration tables and bootloader/communication stacks. Programming is handled through the BDM interface or in-application via the Flash module's command set.
What is the XGATE co-processor used for?
The XGATE is a RISC peripheral co-processor that runs in parallel with the main HCS12X CPU, executing interrupt-driven tasks at the system bus speed. According to NXP application notes, XGATE is commonly used to service CAN, SCI, and PWM peripherals at deterministic rates while freeing the main core for application logic. Code is written in a C-like language and downloaded into XGATE RAM at startup.
What package does MC9S12XEQ512MAG use?
The MC9S12XEQ512MAG is supplied in a 144-pin LQFP package measuring 20x20 mm with a 0.5 mm pitch (NXP package designator 'MAG'). This is a surface-mount package compatible with standard reflow profiles up to 260C peak. The exposed pad is not present on this LQFP; thermal dissipation relies on the lead frame and PCB copper.
Is MC9S12XEQ512MAG automotive qualified?
Yes, the MC9S12XEQ512MAG is AEC-Q100 qualified and rated for -40C to +125C operation, making it suitable for under-hood, body, and chassis automotive applications. The 'MAG' suffix specifically denotes the 144-LQFP automotive grade per NXP ordering information. For non-automotive designs, the equivalent commercial-grade 'CAG' variant may be substituted with relaxed qualification.
Where to buy MC9S12XEQ512MAG online?
The MC9S12XEQ512MAG can be purchased from authorized distributors including DigiKey, Mouser, Arrow, and Avnet. As of 2026-10-19, the part shows active stock on distributor listings. For high-volume orders, requesting a quote directly from NXP or authorized distributors typically yields volume discounts and lifecycle confirmation.
What is the price of MC9S12XEQ512MAG?
As of 2026-10-19, MC9S12XEQ512MAG pricing starts around USD 14.50 at qty 1 and decreases to approximately USD 9.75 at qty 1000 per current distributor listings. Pricing fluctuates with market demand and lead time; tape-and-reel packaging is standard. Always request a fresh quote for production orders, especially for long-lifecycle automotive projects.
What is the lead time for MC9S12XEQ512MAG?
Based on 2026-10-19 distributor data, MC9S12XEQ512MAG ships immediately from stock at major distributors such as DigiKey and Mouser. For production volumes above 10k units, typical lead time is 12-16 weeks when ordered directly from NXP. Automotive customers should plan around NXP's quarterly PCN updates.
MC9S12XEQ512MAG vs MC9S12XEP100MAL - which should I choose?
Choose the MC9S12XEQ512MAG for cost-sensitive automotive applications needing 512 KB Flash with XGATE acceleration, and choose the MC9S12XEP100MAL for designs that require 1 MB Flash, ETPU co-processor, and higher I/O count. Both share the HCS12X core and 144-LQFP package, simplifying board reuse. Verify peripheral mix against your application requirements before migration.
What is the difference between MC9S12XEQ512MAG and MC9S12XEQ512MAL?
The MC9S12XEQ512MAG and MC9S12XEQ512MAL share the same S12XEQ silicon and 512 KB Flash, but differ in temperature grade and packaging code. AG, MAG, and VAG suffixes denote specific LQFP/automotive variants. Always cross-check the suffix against your application's voltage, temperature, and pinout requirements before substituting.
When should I choose MC9S12XEQ512MAG over a Cortex-M MCU?
Choose the MC9S12XEQ512MAG when you need mature automotive AEC-Q100 supply, deterministic interrupt latency via XGATE, and S12X code reuse. Choose a Cortex-M MCU for new designs requiring modern toolchains, lower power, or USB/Cortex-M peripherals. For legacy S12/S12X codebases, MC9S12XEQ512MAG provides drop-in compatibility without firmware rewrite.
What is the best drop-in replacement for MC9S12XEQ512MAG?
The closest drop-in same-package alternative is the MC9S12XEQ512CAG (commercial grade) or MC9S12XEQ512VAL, both in the same 144-LQFP package. For higher performance with pin compatibility, consider the S912XEQ512J3VAG, which adds JTAG security features. Verify oscillator and ECT usage before substitution to avoid peripheral mapping changes.
Where to download MC9S12XEQ512MAG datasheet PDF?
The official NXP datasheet for MC9S12XEQ512MAG can be downloaded from nxp.com by searching the part number, or directly via the S12XEQ512 product page. The reference manual (S12XEQ512RM) and device user guide provide detailed peripheral descriptions. Always use the latest revision posted on NXP's website for PCN and errata information.
Where to find MC9S12XEQ512MAG pinout?
The MC9S12XEQ512MAG pinout is documented in section 2 of the NXP S12XEQ512 device user guide. The 144-LQFP package assigns ECT, SCI, SPI, CAN, ADC, and GPIO pins across four ports (PAD, PB, PJ, PM). Refer to the package diagram in the datasheet for orientation and pin-1 location.
What are the key specifications of MC9S12XEQ512MAG that engineers should know?
The MC9S12XEQ512MAG combines a 16-bit HCS12X CPU at 50 MHz bus speed with 512 KB Flash, XGATE peripheral co-processor, 12-bit ADC, hardware-emulated EEPROM, and AEC-Q100 automotive qualification in a 144-LQFP package. It supports CAN, SCI, SPI peripherals, and runs from 1.72-1.98 V core with 2.8/5 V I/O. Operating temperature range is -40C to +125C.

Données de référence d'ingénierie pour MC9S12XEQ512MAG — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the MC9S12XEQ512MAG when your automotive body, chassis, or industrial CAN node design requires AEC-Q100 qualification, 512 KB Flash, and the deterministic interrupt performance of the XGATE co-processor in a single 144-LQFP package. Pick the MC9S12XEQ512CAG (commercial grade) for non-automotive prototyping or industrial designs that do not require -40C to +125C operation. Choose the S912XEQ512J3MAG for designs that need additional flash security features on a pin-compatible package. Avoid the MC9S12XDP512CAL if you require XGATE - it runs at 40 MHz without XGATE. Avoid the MC9S12XEG128MAA if 512 KB Flash is needed - it only has 128 KB.

Comparaison avec les alternatives

Paramètre Ce produit MC9S12XEQ512CAG MC9S12XEQ512MAL S912XEQ512J3MAG MC9S12XEG128MAA MC9S12XDP512CAL
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
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors
Core HCS12X (16-bit) HCS12X HCS12X HCS12X HCS12X HCS12X
CPU Speed 50 MHz 50 MHz 50 MHz 50 MHz 50 MHz 40 MHz (-20%)
Flash Size 512 KB 512 KB 512 KB 512 KB 128 KB (-75%) 512 KB
XGATE Co-processor Yes Yes Yes Yes Yes No
AEC-Q100 Yes No (commercial) Yes Yes Yes Yes
Operating Temperature -40C to +125C 0 to +70C -40C to +125C -40C to +125C -40C to +125C -40C to +125C

Principaux différenciateurs

  • Integrated XGATE co-processor for deterministic peripheral offload (vs MC9S12XDP512CAL)
  • AEC-Q100 qualification with automotive -40C to +125C range (vs MC9S12XEQ512CAG)
  • Higher 50 MHz CPU bus speed vs S12XDP variants (vs MC9S12XDP512CAL)

Notes de conception

The S12XEQ uses an internal 1.8 V regulator derived from an external 5 V VDDR pin. Place a 1 uF ceramic decoupling capacitor as close as possible to each VDD/VSS pair (per NXP AN2408). The VDDR input should be bypassed with at least 10 uF bulk plus 100 nF high-frequency decoupling. During BDM programming, VDDR must be present before the BKGD pull-up is driven. Use a power-on reset supervisor logic IC if cleared.

The 144-LQFP at 0.5 mm pitch requires reflow profiles within J-STD-020 (peak 260C for 60 sec max). Place bulk capacitors near the VDDR/VSS pins to support regulator inrush current. Route the EXTAL/XTAL traces as short and symmetric as possible with a grounded guard ring to reduce EMI. Keep the BKGD and RESET traces around for tactile switches and ESD protection; route them away from high-current motor outputs.

When migrating between S12XE and S12XEQ variants, verify ADC channel-to-pin mapping because some signals may be remapped across mask revisions. Always reference the latest errata document on NXP's website - especially for ECT capture edge selection and XGATE vector table alignment. Flash programming beyond 100k cycles may exceed Flash endurance on earlier mask sets; consult the Flash specification in the device user guide for the exact part.

Informations de conformité

RoHS
Compliant
REACH
Compliant
AEC-Q100
Qualified
Sans plomb
Yes
Sans halogène
Unknown
Minerais de conflit
Compliant

AEC-Q100 qualified per NXP automotive grade designation. RoHS compliant per NXP product page. Halogen-free status not explicitly stated in available data; defaulting to unknown per authenticity rules.

Données vérifiées le : 2026-10-19 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

MC9S12XEQ512MAG datasheet MC9S12XEQ512MAG price NXP S12XEQ512 LQFP-144 MCU 16-bit automotive MCU 512KB Flash 50MHz 144-LQFP HCS12X microcontroller MC9S12XEQ512MAG body control module MC9S12XEQ512MAG vs MC9S12XDP512CAL MC9S12XEQ512MAG XGATE co-processor MC9S12XEQ512MAG drop-in replacement what is XGATE in MC9S12XEQ512MAG MC9S12XEQ512MAG CAN gateway MCU AEC-Q100 S12XEQ512 automotive

Composants & termes associés

NXP Semiconductors MC9S12XEQ512MAG MC9S12XEQ512CAG MC9S12XEQ512MAL S912XEQ512J3MAG MC9S12XEG128MAA MC9S12XDP512CAL HCS12X HCS12 XGATE microcontroller 16-bit MCU automotive MCU AEC-Q100 RoHS REACH 144-LQFP LQFP family SMT CAN MSCAN ADC 12-bit Enhanced Capture Timer Periodic Interrupt Timer Flash memory EEPROM body control module gateway ECU instrument cluster chassis ECU
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