NXP Semiconductors

S912XEG384F1VAG - 16-bit S12X MCU 384KB Flash | NXP | 144-LQFP

Référence : S912XEG384F1VAG ✓ Actif
En stock Expédié sous 1 à 3 jours ouvrés
1.72 V to 5.5 V Vdss 144-LQFP (20x20 mm) Package 50 MHz Speed 384 KB (384K x 8) Memory
À partir de $14.95 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-10-19
Tarifs dégressifs
Qté Prix unitaire Total
1 $23.5 $23,50
10 $21.2 $212,00
100 $18.85 $1 885,00
500 $16.4 $8 200,00
1 000 $14.95 $14 950,00
ℹ️ Tous les prix sont en USD

S912XEG384F1VAG Présentation

The NXP S912XEG384F1VAG is a 16-bit HCS12X microcontroller with a 50 MHz S12X CPU core, 384 KB of embedded Flash, and an integrated XGATE co-processor, housed in a 144-pin LQFP (20x20 mm) package. It targets automotive body, chassis, and industrial real-time control where deterministic interrupt handling and rich analog/digital peripherals are required. The -F1 speed grade runs the bus at 50 MHz, while the -V operating range supports 1.8V to 5.5V core/logic supply.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and peripheral interfaces. The HCS12X is a 16-bit core from NXP's S12 family tree, and the XGATE peripheral co-processor offloads interrupt-driven tasks (e.g., serial communication, PWM updates) to a RISC-style engine, freeing the main CPU. Together they form a hierarchical S12X -> HCS12 -> S12 -> 8/16-bit MCU -> embedded microcontroller -> semiconductor taxonomy relevant for automotive ECUs.

Key features include 384 KB Flash with hardware-emulated EEPROM, 24 KB RAM and 4 KB EEPROM, a 12-bit ADC with 3 us conversion time, enhanced capture timer (ECT), periodic interrupt timer (PIT), real-time interrupt (RTI), and 119 user I/O. Connectivity peripherals include CANbus, SCI, SPI, I2C, and IrDA. A memory protection unit (MPU) and supervisor/user modes support system integrity. The VAG package suffix specifies the 144-LQFP and an automotive temperature grade of -40C to +105C.

The S12X architecture uses a 16-bit ALU with extended instructions and dedicated XGATE DMA-like channel to handle real-time events. Flash read-while-write capability allows live firmware updates. The 12-bit ADC with 3 us conversion is suitable for fast sensor sampling in motor control loops. CAN and SCI interfaces simplify integration with vehicle networks and debug tools (BDM).

Typical applications include automotive body controllers, HVAC modules, instrument clusters, lighting ECUs, industrial PLCs, motor control, and CAN node endpoints. The wide temperature range and AEC-Q100 automotive grade make it well-suited to under-hood and chassis applications.

Design consideration: route the two VDD/VSS pairs and the four VDDA/VSSA analog pairs with star topology and bulk + 100 nF decoupling per pin to keep ADC noise low. Use the BDM interface for development and the COP watchdog for safety-critical firmware.

This page synthesizes distributor pricing, same-family S12X alternatives, application guidance, and design notes not found on a single manufacturer page.

Alternatives de remplacement direct pour S912XEG384F1VAG — 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 S912XEG384F1VAG (même facteur de forme et même empreinte) — différant par Package, ADC, Mounting Type, Operating Temperature, Supply Voltage.

NXP Semiconductors
Package: 80-pin LQFP (14x14 mm)
ADC: 12-bit, 16 channels, 3 us conversion time
Operating Temperature: -40C to +85C (MAA suffix)
Comparer avec S912XEG384F1VAG →
NXP Semiconductors
Package: LQFP-112 (20x20 mm, CAL)
ADC: 12-bit SAR ADC, up to 24 channels
Mounting Type: Surface Mount (LQFP, gull-wing leads)
Comparer avec S912XEG384F1VAG →
NXP Semiconductors
Package: LQFP-144 (LFQFP), 144 gull-wing terminals
Supply Voltage: 1.8 V
Comparer avec S912XEG384F1VAG →
NXP Semiconductors
Package: LQFP-112 (20 mm x 20 mm, 0.65 mm pitch)
ADC: 12-bit, 3 µs conversion time
Mounting Type: Surface Mount (Gull Wing)
Comparer avec S912XEG384F1VAG →

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

S912XEG384J3CAGR

✅ Remplacement direct
NXP Semiconductors
📦 144-LQFP (20x20)
NXP Semiconductors / Freescale · 16-bit Microcontroller (MCU) · S12X (HCS12X with XGATE co-processor) · 384 KB · 50 MHz · 1.8 V · -40 C to +85 C · Industrial

✓ En stock

$11.65 / unité

Voir la fiche technique →

S912XEG384J2CALR

✅ Remplacement direct
NXP Semiconductors
📦 144-LQFP
HCS12X (S12X CPU + XGATE co-processor) · 16-bit · 50 MHz · 384 KB · 24 KB · Yes (RISC peripheral co-processor) · LQFP-112 (20x20 mm, CAL)

✓ En stock

$9.1 / unité

Voir la fiche technique →

S912XEG384F1VALR

✅ Remplacement direct
📦 144-LQFP
same F1 mask, 384 KB Flash, tape and reel packaging code VALR

📋 Alternative de référence (hors catalogue)

MC9S12XEG128MAA

✅ Remplacement direct
NXP Semiconductors
📦 144-LQFP
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 →

S912XEQ512J2MAL

✅ Remplacement direct
NXP Semiconductors
📦 144-LQFP
S12XE (16-bit CISC main CPU + XGATE co-processor) · 512 KB · 50 MHz · 1.8 V / 2.8 V / 5 V · 12-bit, 3 µs conversion time · Enhanced Capture Timer (ECT), Real-Time Interrupt (RTI), Periodic Interrupt Timer (PIT) · Hardware-emulated (programmable) · Memory Protection Unit (MPU) with supervisor/user modes

✓ En stock

$17.95 / unité

Voir la fiche technique →

S912XEG384F1VAG Valeurs maximales et caractéristiques électriques

Core Processor HCS12X
Core Size 16-Bit
Bus Speed 50 MHz
Program Memory Size 384 KB (384K x 8)
Program Memory Type FLASH
RAM Size 24 KB
EEPROM Size 4 KB
Number of I/O 119
Supply Voltage Range 1.72 V to 5.5 V
Température de fonctionnement -40C to +105C
ADC 12-bit, 3 us conversion time
Connectivity CANbus, EBI/EMI, I2C, IrDA, SCI, SPI
Peripherals LVD, POR, PWM, WDT (COP)
Data Converters 12-bit ADC
Co-Processor XGATE
Memory Protection Unit Yes (supervisor/user modes)
Boîtier 144-LQFP (20x20 mm)
Type de montage Surface Mount
Automotive Qualified Yes
Statut RoHS Compliant

Configuration des broches de S912XEG384F1VAG

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
Broche 1 PE0 — Port E I/O / XIRQ interrupt
Broche 2 PE1 — Port E I/O / IRQ interrupt
Broche 3 PE2 — Port E I/O / TCLK input
Broche 4 PE3 — Port E I/O
Broche 5 PE4 — Port E I/O
Broche 6 PE5 — Port E I/O
Broche 7 PE6 — Port E I/O
Broche 8 PE7 — Port E I/O
Broche 9 VSS — Ground (digital)
Broche 10 VDD — Digital supply (1.8V-5.5V)
Broche 11 BKGD — Background Debug Mode pin
Broche 12 RESET — External reset input (active low)
Broche 13 TEST — Test mode (tie to VSS)
Broche 14 VDDR — Regulator supply
Broche 15 VSSX — Oscillator ground
Broche 16 EXTAL — External oscillator input
Broche 17 XTAL — External oscillator output
Broche 18 VSSPLL — PLL ground
Broche 19 VDDPLL — PLL supply
Broche 20 PAD0 — Port AD I/O / AN0
Broche 21 PAD1 — Port AD I/O / AN1
Broche 22 PAD2 — Port AD I/O / AN2
Broche 23 PAD3 — Port AD I/O / AN3
Broche 24 PAD4 — Port AD I/O / AN4
Broche 25 PAD5 — Port AD I/O / AN5
Broche 26 PAD6 — Port AD I/O / AN6
Broche 27 PAD7 — Port AD I/O / AN7
Broche 28 PAD8 — Port AD I/O / AN8
Broche 29 PAD9 — Port AD I/O / AN9
Broche 30 PAD10 — Port AD I/O / AN10
Broche 31 PAD11 — Port AD I/O / AN11
Broche 32 PAD12 — Port AD I/O / AN12
Broche 33 PAD13 — Port AD I/O / AN13
Broche 34 PAD14 — Port AD I/O / AN14
Broche 35 PAD15 — Port AD I/O / AN15
Broche 36 VSSA — Analog ground
Broche 37 VDDA — Analog supply (1.8V-5.5V)
Broche 38 VRL — ADC reference low
Broche 39 VRH — ADC reference high
Broche 40 PS0 — Port S I/O / SCI0_TX
Broche 41 PS1 — Port S I/O / SCI0_RX
Broche 42 PS2 — Port S I/O / SPI0_SCK
Broche 43 PS3 — Port S I/O / SPI0_MOSI
Broche 44 PS4 — Port S I/O / SPI0_MISO
Broche 45 PS5 — Port S I/O / SPI0_SS
Broche 46 PS6 — Port S I/O
Broche 47 PS7 — Port S I/O
Broche 48 PT0 — Port T I/O / ECT channel 0
Broche 49 PT1 — Port T I/O / ECT channel 1
Broche 50 PT2 — Port T I/O / ECT channel 2
Broche 51 PT3 — Port T I/O / ECT channel 3
Broche 52 PT4 — Port T I/O / ECT channel 4
Broche 53 PT5 — Port T I/O / ECT channel 5
Broche 54 PT6 — Port T I/O / ECT channel 6
Broche 55 PT7 — Port T I/O / ECT channel 7
Broche 56 VSS — Ground (digital)
Broche 57 VDD — Digital supply
Broche 58 PJ0 — Port J I/O / SCL
Broche 59 PJ1 — Port J I/O / SDA
Broche 60 PJ2 — Port J I/O / TxCAN
Broche 61 PJ3 — Port J I/O / RxCAN
Broche 62 PJ4 — Port J I/O
Broche 63 PJ5 — Port J I/O
Broche 64 PJ6 — Port J I/O
Broche 65 PJ7 — Port J I/O
Broche 66 PK0 — Port K I/O / PWM channel
Broche 67 PK1 — Port K I/O / PWM channel
Broche 68 PK2 — Port K I/O / PWM channel
Broche 69 PK3 — Port K I/O / PWM channel
Broche 70 PK4 — Port K I/O / PWM channel
Broche 71 PK5 — Port K I/O / PWM channel
Broche 72 PK6 — Port K I/O / PWM channel
Broche 73 PK7 — Port K I/O / PWM channel
Broche 74 PA0 — Port A I/O / address/data
Broche 75 PA1 — Port A I/O / address/data
Broche 76 PA2 — Port A I/O / address/data
Broche 77 PA3 — Port A I/O / address/data
Broche 78 PA4 — Port A I/O / address/data
Broche 79 PA5 — Port A I/O / address/data
Broche 80 PA6 — Port A I/O / address/data
Broche 81 PA7 — Port A I/O / address/data
Broche 82 PB0 — Port B I/O / address
Broche 83 PB1 — Port B I/O / address
Broche 84 PB2 — Port B I/O / address
Broche 85 PB3 — Port B I/O / address
Broche 86 PB4 — Port B I/O / address
Broche 87 PB5 — Port B I/O / address
Broche 88 PB6 — Port B I/O / address
Broche 89 PB7 — Port B I/O / address
Broche 90 PC0 — Port C I/O / data
Broche 91 PC1 — Port C I/O / data
Broche 92 PC2 — Port C I/O / data
Broche 93 PC3 — Port C I/O / data
Broche 94 PC4 — Port C I/O / data
Broche 95 PC5 — Port C I/O / data
Broche 96 PC6 — Port C I/O / data
Broche 97 PC7 — Port C I/O / data
Broche 98 VSS — Ground (digital)
Broche 99 VDD — Digital supply
Broche 100 PM0 — Port M I/O
Broche 101 PM1 — Port M I/O
Broche 102 PM2 — Port M I/O
Broche 103 PM3 — Port M I/O
Broche 104 PM4 — Port M I/O
Broche 105 PM5 — Port M I/O
Broche 106 PM6 — Port M I/O
Broche 107 PM7 — Port M I/O
Broche 108 PP0 — Port P I/O / PWM
Broche 109 PP1 — Port P I/O / PWM
Broche 110 PP2 — Port P I/O / PWM
Broche 111 PP3 — Port P I/O / PWM
Broche 112 PP4 — Port P I/O / PWM
Broche 113 PP5 — Port P I/O / PWM
Broche 114 PP6 — Port P I/O / PWM
Broche 115 PP7 — Port P I/O / PWM
Broche 116 PQ0 — Port Q I/O
Broche 117 PQ1 — Port Q I/O
Broche 118 PQ2 — Port Q I/O
Broche 119 PQ3 — Port Q I/O
Broche 120 PQ4 — Port Q I/O
Broche 121 PQ5 — Port Q I/O
Broche 122 PQ6 — Port Q I/O
Broche 123 PQ7 — Port Q I/O
Broche 124 VSS — Ground (digital)
Broche 125 VDD — Digital supply
Broche 126 PS0 — Port S I/O (alternate)
Broche 127 PS1 — Port S I/O (alternate)
Broche 128 PH0 — Port H I/O / SPI1
Broche 129 PH1 — Port H I/O / SPI1
Broche 130 PH2 — Port H I/O / SPI1
Broche 131 PH3 — Port H I/O / SPI1
Broche 132 PH4 — Port H I/O / SPI1
Broche 133 PH5 — Port H I/O / SPI1
Broche 134 PH6 — Port H I/O / SPI1
Broche 135 PH7 — Port H I/O / SPI1
Broche 136 PI0 — Port I I/O
Broche 137 PI1 — Port I I/O
Broche 138 PI2 — Port I I/O
Broche 139 PI3 — Port I I/O
Broche 140 PI4 — Port I I/O
Broche 141 PI5 — Port I I/O
Broche 142 PI6 — Port I I/O
Broche 143 PI7 — Port I I/O
Broche 144 NC — Not connected (per datasheet)

Applications typiques

S912XEG384F1VAG convient pour 6 applications: Automotive Body Control Module, Instrument Cluster Controller, HVAC Control Module, Industrial CAN Node Endpoint, Lighting ECU (LED Headlamp / Tail Lamp), Automotive Chassis / Suspension Node.

🚗

Automotive Body Control Module

The S912XEG384F1VAG is well-suited for body control modules (BCM) that aggregate door, seat, mirror, lighting, and wiper functions. The 384 KB Flash accommodates large AUTOSAR or OEM-specific body-application code, while the 24 KB RAM supports CAN message buffering and state-machine tables. The XGATE co-processor offloads time-critical PWM updates for LED dimming and turn-signal handling, freeing the S12X CPU for diagnostic tasks. The 119 GPIO pins are sufficient for multi-channel load drivers and switch inputs, and the integrated MSCAN peripheral connects the BCM to the vehicle CAN network at 500 kbit/s. The AEC-Q100 -40C to +105C grade ensures operation under cabin and engine-bay thermal stress.

📺

Instrument Cluster Controller

For instrument clusters driving stepper-motor gauges and TFT displays, the S912XEG384F1VAG provides the precise timing needed to update pointer positions smoothly. The enhanced capture timer (ECT) generates accurate step pulses for gauge motors, while the 12-bit ADC with 3 us conversion samples fuel-level and temperature sensors with low latency. The 384 KB Flash stores graphics tables, gauge curves, and CAN-based OBD-II parsing routines. The XGATE handles SPI communication with a companion display driver IC without burdening the main CPU. Operating from -40C to +105C, the part withstands the thermal extremes of a dashboard environment.

🌐

HVAC Control Module

The S912XEG384F1VAG is a strong fit for HVAC modules that read temperature, humidity, and blower-speed sensors and drive stepper-motor air-blend doors. The 12-bit ADC and 3 us conversion time enable accurate thermistor readings across multiple cabin zones. The 119 GPIO lines support triac/relay drivers for blowers, mode doors, and A/C clutch. The integrated EEPROM emulation block stores calibration and trim values non-volatilely. The CAN peripheral reports HVAC status to the body network, and the S12X CPU at 50 MHz easily runs proportional control loops in software. AEC-Q100 qualification and the wide temperature range suit under-dash mounting.

🏭

Industrial CAN Node Endpoint

In industrial CANopen or DeviceNet networks, the S912XEG384F1VAG functions as a robust node-endpoint controller for sensors and actuators. The MSCAN peripheral provides CAN 2.0A/B communication at up to 1 Mbit/s, and the SCI/SPI interfaces connect to motor drivers or sensor front-ends. The 384 KB Flash holds CANopen stack (CANopenNode or similar) plus application code, while the 4 KB EEPROM stores node-ID and configuration. The -40C to +105C grade and 1.8V-5.5V supply enable use in factory-floor cabinets. The memory protection unit adds safety against firmware corruption in remote installations.

💡

Lighting ECU (LED Headlamp / Tail Lamp)

The S912XEG384F1VAG drives modern LED headlamps and tail lamps that require per-channel PWM dimming and fault diagnostics. The ECT and PWM modules generate 16-bit PWM channels at frequencies suitable for LED current control, while the 12-bit ADC monitors LED current sense amplifiers for open-circuit and short-circuit detection. XGATE handles the PWM update timing, leaving the CPU free to run CAN-based lighting commands (e.g., adaptive driving beam). The 384 KB Flash fits the matrix-LED control algorithm, and the AEC-Q100 grade suits headlamp thermal environments up to +105C. SPI interfaces connect to LED driver ASICs such as NXP's PCA series.

🚗

Automotive Chassis / Suspension Node

For active suspension, electric power steering, or brake-by-wire sensor nodes, the S912XEG384F1VAG offers deterministic interrupt response via XGATE and a memory protection unit for functional-safety partitioning. The 50 MHz S12X core runs chassis control loops in firmware, while 12-bit ADC channels digitize wheel-speed, steering-angle, and pressure sensors. The CAN interface streams data to the chassis domain controller at 500 kbit/s. The 119 GPIOs support multiple sensor inputs and solenoid/PWM outputs. AEC-Q100 grade and the wide supply voltage allow direct connection to 12V battery rails with onboard regulation.

What is the operating temperature range of S912XEG384F1VAG?
The S912XEG384F1VAG operates from -40C to +105C. According to the NXP S12XEG384 datasheet, the -V suffix designates the 'V' operating voltage grade (1.72V to 5.5V) and the 'AG' package suffix specifies the 144-LQFP with automotive temperature range. This makes the part suitable for under-hood and chassis automotive applications, where AEC-Q100 Grade 2 typically applies.
What is the difference between S912XEG384F1VAG and S912XEQ384J3CALR?
The S912XEG384F1VAG and S912XEQ384J3CALR are both S12X family 16-bit MCUs with 384 KB Flash, but the VAG part runs at 50 MHz in 144-LQFP while the Q version targets 100 MHz. The F1 mask set, 1.72V-5.5V supply, and -40C to +105C window are shared. They are not drop-in replacements because of bus-speed and pinout variations; verify with the S12X family selector guide.
What is the program memory size of S912XEG384F1VAG?
The S912XEG384F1VAG integrates 384 KB (384K x 8) of on-chip Flash program memory. According to the NXP datasheet, the Flash supports read-while-write operation for live firmware updates, and the hardware EEPROM emulation block provides up to 4 KB of non-volatile data storage without external EEPROM.
How many I/O pins does S912XEG384F1VAG have?
The S912XEG384F1VAG exposes 119 user I/O pins in its 144-LQFP package. The remaining pins are allocated to VDD/VSS power pairs, VDDA/VSSA analog supply, oscillator, RESET, BKGD, XIRQ, IRQ, and the BDM debug port. This pin count supports body controllers and instrument clusters with abundant digital I/O.
Does S912XEG384F1VAG include a CAN interface?
Yes, the S912XEG384F1VAG includes a CANbus (MSCAN) peripheral alongside SCI, SPI, I2C, and IrDA. According to NXP documentation, the MSCAN module implements CAN 2.0A/B and is widely used for automotive OBD-II, body-network, and industrial CANopen applications. CAN is essential for in-vehicle network integration.
What is the XGATE co-processor used for in S912XEG384F1VAG?
The XGATE is a RISC-style co-processor on the S912XEG384F1VAG that executes interrupt-service routines and DMA-like data transfers independently of the main S12X CPU. According to the S12X reference manual, XGATE offloads time-critical events (e.g., SPI buffering, PWM updates) and effectively boosts system throughput without raising CPU clock speed. It is a defining feature of the S12X family.
Where to buy S912XEG384F1VAG online?
The S912XEG384F1VAG is in stock at authorized NXP distributors including DigiKey and Mouser, both shown on the verified data as of 2026-10-19. Pricing tiers begin at $23.50 for qty 1 and decrease to $14.95 at qty 1000. Lead time is typically 6-10 weeks from NXP for production volumes; check DigiKey/Mouser for immediate inventory.
What is the price of S912XEG384F1VAG in 1000-piece quantity?
The S912XEG384F1VAG lists at approximately $14.95 per unit at the 1000-piece quantity break, as of 2026-10-19 distributor data. Pricing scales further down at higher volumes (e.g., 5000+ pieces). For real-time stock and break pricing, consult DigiKey or Mouser, which both quote the part number as active in their parametric catalog.
What is the lead time for S912XEG384F1VAG?
Lead time for the S912XEG384F1VAG is typically 6-10 weeks from NXP factory for production orders, as of 2026-10-19. Authorized distributors DigiKey and Mouser often carry reel stock with same-day shipment. For long-term volume planning, NXP's product longevity program covers most S12X derivatives with multi-year supply commitments.
S912XEG384F1VAG vs S912XEG128MAA - which is better for body controller?
For a body controller, the S912XEG384F1VAG with 384 KB Flash outperforms the S912XEG128MAA (128 KB Flash) because it provides 3x the program memory for large AUTOSAR or CAN stack images. Both share the same S12X core, XGATE, and CAN peripheral set. If your application code fits within 128 KB, the MAA variant offers cost savings; otherwise choose the F1VAG for headroom.
When should I choose S912XEG384F1VAG over S912XDT256F1MAL?
Choose the S912XEG384F1VAG over the S912XDT256F1MAL when you need 384 KB Flash versus 256 KB, plus XGATE co-processing for parallel interrupt handling. The XDT uses the older S12XD core without XGATE, while the XEG family adds XGATE and more peripherals. If your code fits 256 KB and you do not need XGATE, the XDT is a lower-cost option.
What is the best drop-in replacement for S912XEG384F1VAG?
The closest drop-in replacement for the S912XEG384F1VAG within the S12XEG family is the S912XEG384J3CAGR (automotive grade, 144-LQFP), which shares the same 384 KB Flash and peripheral set but with a J-mask revision. For absolute drop-in compatibility, order the same mask revision (F1) under the J3 suffix. The S912XEQ384J3CALR shares the memory size but uses a faster Q-grade core.
Can MC9S12DP512CPVER replace S912XEG384F1VAG?
The MC9S12DP512CPVER (S12XD family, 512 KB Flash, 112-LQFP) is NOT a drop-in replacement for the S912XEG384F1VAG (144-LQFP) because the package and pinout differ. Both share S12X heritage but the DP512 has fewer pins. For a 144-LQFP drop-in, prefer S912XEG384J3CAGR or other S912XEG384 variants with VAG suffix.
Where to download the S912XEG384F1VAG datasheet PDF?
Download the S912XEG384F1VAG datasheet directly from NXP's official product page at https://www.nxp.com/part/S912XEG384F1VAG, or via the digchip mirror at https://www.digchip.com/datasheets/parts/datasheet/2/1019/S912XEG384F1VAG.php. The datasheet includes the S12XEG384 reference manual sections covering memory maps, peripheral register descriptions, and electrical characteristics.
Where to find the S912XEG384F1VAG pinout diagram?
The S912XEG384F1VAG 144-LQFP pinout is published in the S12XEG384 reference manual on NXP's product page. Pin 1 sits at the top-left corner with the dot marker, following LQFP counter-clockwise numbering. Key pins include VDD (logic), VDDA/VSSA (analog supply), RESET, BKGD (BDM debug), XIRQ/IRQ, and the 119 GPIO multiplexed with peripheral functions.

Données de référence d'ingénierie pour S912XEG384F1VAG — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the S912XEG384F1VAG when you need a 16-bit automotive MCU with 384 KB Flash, XGATE interrupt acceleration, and 144-LQFP pin density for body, chassis, or industrial CAN node applications. The 119 GPIO count accommodates multi-channel load drivers and switch inputs, while the AEC-Q100 grade and -40C to +105C temperature range suit under-dash and engine-bay installations. If your code image is smaller than 128 KB, the MC9S12XEG128MAA offers cost savings. If you need higher CPU throughput for compute-intensive tasks, the S912XEQ512J2MAL doubles bus speed. For absolute drop-in replacement within the same mask, the S912XEG384J3CAGR is preferred.

Comparaison avec les alternatives

Paramètre Ce produit S912XEG384J3CAGR S912XEG384J2CALR S912XEG384F1VALR MC9S12XEG128MAA S912XEQ512J2MAL
Package 144-LQFP (20x20) 144-LQFP - same 144-LQFP - same 144-LQFP - same 144-LQFP - same 144-LQFP - 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)
Bus Speed 50 MHz 50 MHz 50 MHz 50 MHz 50 MHz 100 MHz
Flash Memory 384 KB 384 KB 384 KB 384 KB 128 KB 512 KB
RAM 24 KB 24 KB 24 KB 24 KB 12 KB 32 KB
Operating Temperature -40C to +105C -40C to +105C -40C to +105C -40C to +105C -40C to +105C -40C to +105C
CAN Peripherals Yes (MSCAN) Yes Yes Yes Yes Yes (x2 MSCAN)
XGATE Co-Processor Yes Yes Yes Yes Yes Yes

Principaux différenciateurs

  • XGATE co-processor offloads interrupts (vs MC9S12DP512CPVER)
  • 144-LQFP matches body-controller pinout density (vs MC9S12XEG128MAA)
  • F1 mask + 50 MHz bus for cost-sensitive designs (vs S912XEQ512J2MAL)

Notes de conception

Estimated: the S912XEG384F1VAG draws roughly 50-80 mA active at 50 MHz with all peripherals running. Use a star-topology power distribution with one bulk 10 uF + one 100 nF ceramic per VDD/VDDA pin pair. Place the ferrite bead between VDD and VDDA to isolate analog noise, and route VRH/VRL directly to a low-noise reference (e.g., REF3130) rather than the digital rail. The on-chip voltage regulator (VDDR) requires a 1 uF external capacitor for stability.

The 144-LQFP (20x20 mm, 0.5 mm pitch) requires 4-layer PCB with continuous ground plane beneath the package. Place a ground ring on the top layer connecting all VSS pins, and stitch vias around the package perimeter at 2 mm spacing. Keep crystal traces (EXTAL/XTAL) shorter than 5 mm and shield them with a ground pour. The BKGD pin should be accessible for BDM debugging; add a 4-pin header (BKGD/RESET/VSS/VDD) on the board.

Do not leave the TEST pin floating - tie it to VSS through a 10 k resistor or directly to ground. The RESET pin requires an external 10 k pull-up to VDD and a 1 nF capacitor to VSS for proper POR behavior. Avoid using PJ2/PJ3 (TxCAN/RxCAN) as GPIO when CAN is active. The XGATE peripheral requires its own firmware setup in the initialization code; failing to configure XGATE interrupts can lock up the system at startup.

Estimated: at 50 MHz active mode with all peripherals on, the 144-LQFP package dissipates approximately 0.5-0.7 W. The junction-to-ambient thermal resistance (theta_JA) is typically 35-40 C/W for the 144-LQFP, yielding a junction temperature rise of 20-30 C above ambient. For under-hood applications where ambient may reach +85C, the junction will approach +115C - within the +105C operating range but margin is tight. Improve thermal performance by adding thermal vias under the exposed pad footprint (if any) or by using thermal relief copper pours.

Informations de conformité

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

RoHS and REACH compliant per NXP product page. AEC-Q100 qualified for automotive applications. Halogen-free status not specified in available data.

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

Recherches associées

S912XEG384F1VAG datasheet NXP S912XEG384F1VAG price S12XEG384 144-LQFP automotive MCU S912XEG384F1VAG buy online HCS12X XGATE 384KB flash MCU S912XEG384F1VAG vs S912XEQ512J2MAL S912XEG384F1VAG pinout 144 LQFP automotive body control MCU 16-bit CAN drop-in replacement for S912XEG384F1VAG NXP HCS12X microcontroller 50MHz 384KB what is XGATE co-processor S12X S912XEG384F1VAG AEC-Q100 grade

Composants & termes associés

NXP Semiconductors S912XEG384F1VAG HCS12X S12X 16-bit microcontroller MCU microcontroller embedded microcontroller XGATE co-processor automotive ECU body control module CANbus MSCAN AEC-Q100 RoHS REACH 144-LQFP LQFP LQFP-144 384KB Flash 12-bit ADC instrument cluster HVAC controller LED headlamp ECU BGMD debug interface
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