S912XEQ384J3VAL - 16-bit HCS12X MCU 384KB Flash 50MHz | NXP
料号： S912XEQ384J3VAL ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $17.17 | $17.17 |
| 10 | $15.45 | $154.50 |
| 100 | $13.46 | $1,346.00 |
| 500 | $11.87 | $5,935.00 |
| 1,000 | $10.42 | $10,420.00 |
S912XEQ384J3VAL 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and a wide range of on-chip peripherals such as ADCs, timers and communication controllers. Within the broader semiconductor taxonomy, microcontrollers sit under microprocessors, which sit under digital ICs and ultimately integrated circuits. The S12X specifically extends the classic HCS12 instruction set with a richer addressing mode set and paged memory management, while the XGATE engine supplies a low-latency auxiliary execution path used by NXP for virtual peripherals that historically required external logic.
Key features of this part include CAN 2.0 controllers, SCI/SPI/IIC peripherals, 8-channel 16-bit Enhanced Capture Timer (ECT), Periodic Interrupt Timer (PIT), Real-Time Interrupt (RTI), and 12-bit ATD channels with 3 us conversion. The integrated voltage regulator operates from 1.8 V/2.8 V/5 V MCU rails, supporting automotive 12 V and 24 V battery systems after external regulation. The LQFP-112 footprint supports legacy automotive PCB tooled for Freescale S12X designs.
Typical applications include automotive body controllers, instrument clusters, HVAC control modules, and industrial CAN nodes that require ASIL-relevant firmware partitioning with on-chip supervisor/user separation. The XGATE allows deterministic handling of CAN and PWM without interrupting the S12X core, enabling tight PID control loops. The 12-bit ATD and 16-bit ECT provide simultaneous sampling and input capture needed for motor control and sensor interfacing.
When designing with the S912XEQ384J3VAL, decouple all four VDDX/VSSX pairs near the pins and route the XFC capacitor carefully per the datasheet; an undersized XFC cap causes POR faults at low temperature. The MCU must boot through BDM or via the secure serial bootloader unless an unsecure-mode development key is provisioned; plan toolchain selection early - CodeWarrior legacy projects must be rebuilt for CodeWarrior 5.x or migrated to S32 Design Studio.
直接替换替代料： S912XEQ384J3VAL ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： S912XEQ384J3VAL （相同外形与封装尺寸） ——差异在于 Package, Mounting Type, Operating Temperature, Core, Timers.
快速对比工具——选择替代料号进行并排对比：
S912XEQ384J3CAL
✅ 直接替换✓ 有现货
$11.4 / 个
查看数据手册 →S912XEQ384J3CALR
✅ 直接替换✓ 有现货
$11.4 / 个
查看数据手册 →S912XEG384J2CALR
✅ 直接替换✓ 有现货
$9.1 / 个
查看数据手册 →S912XEQ384F1VAL
✅ 直接替换📋 参考替代料（不在目录中）
S912XEQ512J2MAL
✅ 直接替换✓ 有现货
$17.95 / 个
查看数据手册 →S912XET512J3MAG
✅ 直接替换✓ 有现货
$16.4 / 个
查看数据手册 →MC9S12XEG128MAA
✅ 直接替换✓ 有现货
$8.9 / 个
查看数据手册 →MC9S12XEQ512CAG
✅ 直接替换✓ 有现货
$14.4 / 个
查看数据手册 →S912XEQ384J3VAL 最大额定值与电气特性
| Core | S12X (HCS12X) 16-bit |
| Co-processor | XGATE peripheral engine |
| Maximum CPU Frequency | 50 MHz |
| Bus Speed | 25 MHz |
| Program Flash | 384 KB |
| Data Flash / EEPROM | FlexMemory (up to ~4 KB D-Flash + emulated EEPROM) |
| RAM | 16 KB |
| On-chip ADC | 12-bit ATD, ~3 us conversion |
| Timers | ECT (16-bit), PIT, RTI |
| Communication | CAN 2.0, SCI, SPI, IIC |
| Memory Protection | Memory Protection Unit (MPU), supervisor/user modes |
| 工作温度范围 | -40C to +105C |
| 电源电压 | 1.8 V / 2.8 V / 5 V (internal regulator) |
| 封装 | 112-LQFP (20 x 20 mm) |
| Automotive Qualification | AEC-Q100 Grade 1 |
| RoHS 状态 | Compliant |
| 安装类型 | Surface Mount (Tray per Arrow listing) |
S912XEQ384J3VAL 引脚配置
| 引脚 1 | VSS1 — Ground reference 1 |
| 引脚 2 | VDDR — Regulated supply for internal regulator |
| 引脚 3 | VDDX1 — External supply 1 (5 V / 3.3 V) |
| 引脚 4 | VSSX1 — External ground 1 |
| 引脚 5 | VDDX2 — External supply 2 |
| 引脚 6 | VSSX2 — External ground 2 |
| 引脚 7 | PE0 — Port E bit 0 / CAN4TX (alternate) |
| 引脚 8 | PE1 — Port E bit 1 / CAN4RX (alternate) |
| 引脚 9 | PE2 — Port E bit 2 |
| 引脚 10 | PE3 — Port E bit 3 |
| 引脚 11 | PE4 — Port E bit 4 |
| 引脚 12 | PE5 — Port E bit 5 |
| 引脚 13 | PE6 — Port E bit 6 |
| 引脚 14 | PE7 — Port E bit 7 |
| 引脚 15 | PJ0 — Port J bit 0 (XGATE interrupt capable) |
| 引脚 16 | PJ1 — Port J bit 1 |
| 引脚 17 | PJ2 — Port J bit 2 |
| 引脚 18 | PJ3 — Port J bit 3 |
| 引脚 19 | PJ4 — Port J bit 4 |
| 引脚 20 | PJ5 — Port J bit 5 |
| 引脚 21 | PJ6 — Port J bit 6 |
| 引脚 22 | PJ7 — Port J bit 7 |
| 引脚 23 | BKGD — Background Debug Mode pin (BDM) |
| 引脚 24 | RESET — External reset input (active low) |
| 引脚 25 | TEST — Test mode pin - tie to VDDX per datasheet |
| 引脚 26 | XFC — PLL filter capacitor |
| 引脚 27 | EXTAL — Crystal/clock input |
| 引脚 28 | XTAL — Crystal output |
| 引脚 29 | PAD00 — Port AD bit 0 / ATD channel 0 |
| 引脚 30 | PAD01 — Port AD bit 1 / ATD channel 1 |
| 引脚 31 | PAD02 — Port AD bit 2 / ATD channel 2 |
| 引脚 32 | PAD03 — Port AD bit 3 / ATD channel 3 |
| 引脚 33 | PAD04 — Port AD bit 4 / ATD channel 4 |
| 引脚 34 | PAD05 — Port AD bit 5 / ATD channel 5 |
| 引脚 35 | PAD06 — Port AD bit 6 / ATD channel 6 |
| 引脚 36 | PAD07 — Port AD bit 7 / ATD channel 7 |
| 引脚 37 | PAD08 — Port AD bit 8 / ATD channel 8 |
| 引脚 38 | PAD09 — Port AD bit 9 / ATD channel 9 |
| 引脚 39 | PAD10 — Port AD bit 10 / ATD channel 10 |
| 引脚 40 | PAD11 — Port AD bit 11 / ATD channel 11 |
| 引脚 41 | PAD12 — Port AD bit 12 / ATD channel 12 |
| 引脚 42 | PAD13 — Port AD bit 13 / ATD channel 13 |
| 引脚 43 | PAD14 — Port AD bit 14 / ATD channel 14 |
| 引脚 44 | PAD15 — Port AD bit 15 / ATD channel 15 |
| 引脚 45 | PAD16 — Port AD bit 16 |
| 引脚 46 | PAD17 — Port AD bit 17 |
| 引脚 47 | PAD18 — Port AD bit 18 |
| 引脚 48 | PAD19 — Port AD bit 19 |
| 引脚 49 | PAD20 — Port AD bit 20 |
| 引脚 50 | PAD21 — Port AD bit 21 |
| 引脚 51 | PAD22 — Port AD bit 22 |
| 引脚 52 | PAD23 — Port AD bit 23 |
| 引脚 53 | PA0 — Port A bit 0 / ECT channel 0 |
| 引脚 54 | PA1 — Port A bit 1 / ECT channel 1 |
| 引脚 55 | PA2 — Port A bit 2 / ECT channel 2 |
| 引脚 56 | PA3 — Port A bit 3 / ECT channel 3 |
| 引脚 57 | PA4 — Port A bit 4 / ECT channel 4 |
| 引脚 58 | PA5 — Port A bit 5 / ECT channel 5 |
| 引脚 59 | PA6 — Port A bit 6 / ECT channel 6 |
| 引脚 60 | PA7 — Port A bit 7 / ECT channel 7 |
| 引脚 61 | PB0 — Port B bit 0 / ECT channel 0 alt |
| 引脚 62 | PB1 — Port B bit 1 / ECT channel 1 alt |
| 引脚 63 | PB2 — Port B bit 2 / ECT channel 2 alt |
| 引脚 64 | PB3 — Port B bit 3 / ECT channel 3 alt |
| 引脚 65 | PB4 — Port B bit 4 / ECT channel 4 alt |
| 引脚 66 | PB5 — Port B bit 5 / ECT channel 5 alt |
| 引脚 67 | PB6 — Port B bit 6 / ECT channel 6 alt |
| 引脚 68 | PB7 — Port B bit 7 / ECT channel 7 alt |
| 引脚 69 | PP0 — Port P bit 0 / PWM channel 0 |
| 引脚 70 | PP1 — Port P bit 1 / PWM channel 1 |
| 引脚 71 | PP2 — Port P bit 2 / PWM channel 2 |
| 引脚 72 | PP3 — Port P bit 3 / PWM channel 3 |
| 引脚 73 | PP4 — Port P bit 4 / PWM channel 4 |
| 引脚 74 | PP5 — Port P bit 5 / PWM channel 5 |
| 引脚 75 | PP6 — Port P bit 6 / PWM channel 6 |
| 引脚 76 | PP7 — Port P bit 7 / PWM channel 7 |
| 引脚 77 | PS0 — Port S bit 0 / SPI0 |
| 引脚 78 | PS1 — Port S bit 1 / SPI0 SCK |
| 引脚 79 | PS2 — Port S bit 2 / SPI0 MOSI |
| 引脚 80 | PS3 — Port S bit 3 / SPI0 MISO |
| 引脚 81 | PS4 — Port S bit 4 / SCI0 TX |
| 引脚 82 | PS5 — Port S bit 5 / SCI0 RX |
| 引脚 83 | PS6 — Port S bit 6 / SCI1 TX |
| 引脚 84 | PS7 — Port S bit 7 / SCI1 RX |
| 引脚 85 | PT0 — Port T bit 0 / IIC SCL |
| 引脚 86 | PT1 — Port T bit 1 / IIC SDA |
| 引脚 87 | PT2 — Port T bit 2 / CAN0 TX |
| 引脚 88 | PT3 — Port T bit 3 / CAN0 RX |
| 引脚 89 | PT4 — Port T bit 4 / CAN1 TX |
| 引脚 90 | PT5 — Port T bit 5 / CAN1 RX |
| 引脚 91 | PT6 — Port T bit 6 |
| 引脚 92 | PT7 — Port T bit 7 |
| 引脚 93 | PM0 — Port M bit 0 |
| 引脚 94 | PM1 — Port M bit 1 |
| 引脚 95 | PM2 — Port M bit 2 |
| 引脚 96 | PM3 — Port M bit 3 |
| 引脚 97 | PM4 — Port M bit 4 |
| 引脚 98 | PM5 — Port M bit 5 |
| 引脚 99 | PM6 — Port M bit 6 |
| 引脚 100 | PM7 — Port M bit 7 |
| 引脚 101 | VDDPLL — Internal PLL supply |
| 引脚 102 | VSSPLL — Internal PLL ground |
| 引脚 103 | VDDX3 — External supply 3 |
| 引脚 104 | VSSX3 — External ground 3 |
| 引脚 105 | VDDX4 — External supply 4 |
| 引脚 106 | VSSX4 — External ground 4 |
| 引脚 107 | VDD2 — Internal regulator output (2.5 V) |
| 引脚 108 | VSS2 — Internal regulator ground |
| 引脚 109 | PK0 — Port K bit 0 |
| 引脚 110 | PK1 — Port K bit 1 |
| 引脚 111 | PH0 — Port H bit 0 |
| 引脚 112 | PH1 — Port H bit 1 |
典型应用
S912XEQ384J3VAL 适用于 7 应用s: Automotive Body Control Module (BCM), Instrument Cluster and Driver Display Controllers, HVAC Control Modules with Actuator Drivers, Industrial CAN-Open Node Controllers, Maritime and Off-Road Vehicle Telematics, Solar Inverter and Renewable-Energy Controllers, Aerospace Auxiliary Control and Sensor Concentrators.
Automotive Body Control Module (BCM)
The S912XEQ384J3VAL's 50 MHz S12X core, XGATE co-processor and 12-bit ATD ADC fit automotive BCM functions including central locking, exterior lighting and wiper control, where multiple CAN nodes must respond deterministically to wake events. The 384 KB Flash holds typical application firmware plus CAN J1939 stacks, while 16 KB RAM buffers pending diagnostic messages. Unlike an MCU without XGATE, the XGATE engine offloads CAN interrupt servicing and PWM generation into a peripheral context with sub-microsecond latency, removing the need for an external real-time companion. The 112-LQFP (20x20) footprint supports legacy Freescale-designed PCBs and AEC-Q100 Grade 1 qualification supports under-hood deployment.
推荐
Instrument Cluster and Driver Display Controllers
The XEQ sub-family's Memory Protection Unit (MPU) and supervisor/user modes let instrument cluster firmware safely run graphics, diagnostics and CAN traffic on a single S912XEQ384J3VAL while keeping safety-critical turn signals isolated in supervisor mode. The 16-bit Enhanced Capture Timer (ECT) supports the precise PWM timing required for stepper-motor gauge and buzzer control, and 12-bit ATD channels handle fuel and temperature sensor inputs. AEC-Q100 Grade 1 qualification across -40C to +105C allows placement behind the dashboard where ambient temperature swings are significant.
推荐
HVAC Control Modules with Actuator Drivers
The S912XEQ384J3VAL's ECT, 12-bit ATD and SCI peripheral set is well aligned to HVAC control modules that read cabin temperature, blend door position and blower RPM, then drive multiple DC and stepper actuators. The XGATE co-processor maintains deterministic update of the actuator PWM, keeping the main core free for CAN diagnostics and protocol stacks. 384 KB Flash accommodates full AUTOSAR configuration memory plus application code. The AEC-Q100 -40C to +105C window comfortably covers the in-cabin environment including solar load.
推荐
Industrial CAN-Open Node Controllers
Factory automation CAN-Open nodes using the S912XEQ384J3VAL benefit from its dual CAN 2.0 controllers, SCI for service-port access, and SPI for ADC or sensor expansion. The 384 KB Flash scales to CAN-Open stack plus application logic while 16 KB RAM covers PDO buffers. Compared with a Cortex-M class alternative, the S12X core's deterministic interrupt response makes it a strong fit for time-critical conveyor or pick-and-place nodes. The same tooling infrastructure that supports automotive BCMs reduces qualification overhead for industrial customers.
推荐
Maritime and Off-Road Vehicle Telematics
Off-road and marine telematics controllers leverage the S912XEQ384J3VAL's wide automotive-grade temperature range, 384 KB Flash for CAN J1939 diagnostics, and the S12X core's strong IEC 61508 track record for the auxiliary safety functions sometimes mandated in heavy-vehicle and marine ECUs. The XGATE engine handles incoming CAN messages deterministically while the main core runs application logic and GPS/GLONASS stacks. AEC-Q100 screening provides a defence against vibration and humidity stresses.
推荐
Solar Inverter and Renewable-Energy Controllers
Although marketed primarily for automotive, the S912XEQ384J3VAL is also used in small photovoltaic inverter controllers and renewable-energy junction nodes that benefit from CAN/SCIs robust bus interfaces and AEC-Q100 Grade 1 thermal headroom. The 16-bit S12X core and ECT provide reliable cycle-by-cycle current control, while XGATE offloads inverter switching events from main core processing. The 112-LQFP footprint simplifies board layout reuse across solar platforms originally designed around legacy Freescale products.
推荐
Aerospace Auxiliary Control and Sensor Concentrators
General-aviation sensor concentrators and auxiliary control units use the S912XEQ384J3VAL because it offers -40C to +105C operation with AEC-Q100 screening, 384 KB Flash, and CAN 2.0 interfaces common in avionics databuses. The Memory Protection Unit enables supervisor/user separation, useful for partitioned DO-178 firmware baselines. XGATE service routines maintain deterministic timing when multiple sensor inputs converge. Note: DO-160 qualification at the system level remains the integrator's responsibility.
推荐
推荐产品汇总
工程参考数据： S912XEQ384J3VAL ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | S912XEQ384J3CAL | S912XEQ384J3CALR | S912XEG384J2CALR | S912XEQ384F1VAL | S912XEQ512J2MAL |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 112-LQFP (20x20 mm) | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same |
| Program Flash | 384 KB | 384 KB | 384 KB | 384 KB | 384 KB | 512 KB (+33%) |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 32 KB |
| Core Frequency | 50 MHz / 25 MHz bus | 50 MHz / 25 MHz bus | 50 MHz / 25 MHz bus | 50 MHz / 25 MHz bus | 50 MHz / 25 MHz bus | 50 MHz / 25 MHz bus |
| Co-processor | XGATE | XGATE | XGATE | XGATE | XGATE | XGATE |
| ADC | 12-bit ATD, ~3 us conversion | 12-bit ATD, ~3 us conversion | 12-bit ATD, ~3 us conversion | 12-bit ATD, ~3 us conversion | 12-bit ATD, ~3 us conversion | 12-bit ATD, ~3 us conversion |
| Operating Temperature | -40C to +105C (AEC-Q100 Grade 1) | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
| Packaging | Tray | Reel 13-inch | Tape & Reel | Tape & Reel | Tray | Tray |
关键差异点
- XGATE peripheral co-processor absent on classical HCS12 （对比 MC9S12H256VFVE)
- 384 KB Flash, 16 KB RAM with MPU for software partitioning （对比 MC9S12XEG128MAA)
- Production-ready drop-in tray variant within the S12XEQ family （对比 S912XEQ384J3CALR)
设计说明
Estimated: VDDX decoupling requires one 100 nF X7R ceramic per VDDX/VSSX pair located within 5 mm of each pin, plus bulk 4.7 uF on VDDR. The internal 2.5 V regulator (VDD2) requires a 1 uF bypass plus a 4.7 uF bulk. The PLL supply (VDDPLL/VSSPLL) must be filtered with a ferrite or RC from VDDX. Dropping these loops causes POR faults and reduces AEC-Q100 margin at low temperature.
Keep the EXTAL/XTAL traces short and symmetric, and route the XFC cap with a guarded guard-ring to VSSPLL to minimise PLL jitter. BGND must remain accessible for factory programming - place a 2x5 0.05-inch header or test pad. Place the reset network (4.7 kohm pull-up plus 1 nF delay) close to the RESET pin. Inadequate routing of the XFC capacitor node causes the well-documented XEQ oscillator start-up failure.
Do not assume the production CAL variant is interchangeable on a reel-only SMT line - VAL ships in tray, CAL/CALR ships in 13-inch reel. Confirm compatibility with the S12XEQ derivative mask revision when swapping between F1 and J3; EEPROM emulation offsets and CAN baud timing vary. Plan toolchain migration: legacy CodeWarrior 4.x projects must be rebuilt for CodeWarrior 5.1+ or migrated to S32 Design Studio with maintained BDM probe.
合规信息
AEC-Q100 Grade 1 per NXP product page. RoHS/REACH compliant per NXP and Arrow listings.
