S912XD256J1MAA - 16-Bit 80MHz 256KB MCU | NXP
料号： S912XD256J1MAA ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $17.9692 | $17.97 |
| 10 | $17.9692 | $179.69 |
| 100 | $17.9692 | $1,796.92 |
| 500 | $17.9692 | $8,984.60 |
| 1,000 | $17.9692 | $17,969.20 |
S912XD256J1MAA 概述
A microcontroller is a programmable semiconductor that integrates a processor core, memory, peripherals, and interface blocks into one embedded-control component. The S912XD256J1MAA belongs to the HCS12X family and sits within the broader hierarchy of embedded processors and controllers, microcontrollers, and semiconductors. Its 16-bit architecture and 256 KB flash configuration provide a useful balance between code capacity and real-time control capability for automotive electronics.
Verified distributor information identifies the device as an HCS12X microcontroller with a 16-bit CPU, 80 MHz maximum listed frequency, 256 KB flash memory, and an 80-QFP 14 x 14 mm package. The J1MAA ordering suffix is associated in distributor data with an automotive temperature grade. Additional electrical details such as supply voltage, RAM, EEPROM, peripheral mix, and temperature limits were not supplied in the verified dataset and therefore require confirmation from the manufacturer documentation before schematic capture.
The 80-lead QFP package provides more external connection capacity than a small dual in-line package and supports integration with external memory, communications circuitry, sensors, actuators, and interface transceivers. Compared with a smaller microcontroller package, its 14 x 14 mm footprint offers many more available I/O and bus connections, but it also demands careful escape routing, adequate assembly clearance, and a larger land pattern on the printed circuit board.
Typical uses include body, chassis, powertrain-adjacent, motor-control, vehicle-network, sensor-conditioning, and industrial embedded-control platforms where legacy software investment and 16-bit processing are important. The part should be selected only after confirming exact peripheral compatibility, memory map, clock configuration, electrical limits, and software-device identity through the authoritative HCS12X documentation.
A practical design constraint is that software migration cannot be judged from clock speed alone. Engineers should verify controller revisions, peripheral modules, interrupt vectors, pin multiplexing, flash wait states, and toolchain support before committing to a redesign. This page combines verified distributor facts, sourcing context, and selection guidance while clearly separating parameters that still require manufacturer-datasheet confirmation.
直接替换替代料： S912XD256J1MAA ——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： S912XD256J1MAA （相同外形与封装尺寸） ——差异在于 Package Type, Package, Package Code, Product Type, Mounting Type.
快速对比工具——选择替代料号进行并排对比：
S912XDT256F1VAA
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$13.6 / 个
查看数据手册 →S912XES384J2CAL
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.15 / 个
查看数据手册 →S912XEG384AVAGR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
联系询价
查看数据手册 →S912XET256J1CALR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.6476 / 个
查看数据手册 →MC9S12XDQ256VPV
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
联系询价
查看数据手册 →S912XD256J1MAA 最大额定值与电气特性
| Product Type | 16-bit HCS12X embedded microcontroller |
| Maximum Listed Clock Frequency | 80 MHz |
| Flash Memory | 256 KB (256K x 8) |
| CPU Architecture | 16-bit |
| 封装 | 80-QFP, 14 x 14 mm |
| Package Type | QFP |
| Terminal Count | 80 terminals |
| Package Shape | Square |
| Terminal Form | Gull wing |
| 安装方式 | Surface mount |
| Temperature Grade | Automotive |
| Series | HCS12X |
| RoHS 状态 | Compliant |
S912XD256J1MAA square 引脚配置指南
S912XD256J1MAA（square 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： S912XD256J1MAA.
请参阅 数据手册 以查看完整引脚配置。
典型应用
S912XD256J1MAA 适用于 6 应用s: Automotive Body-Control Module, Motor and Actuator Control, Vehicle Network Gateway, Industrial Equipment Controller, Sensor Conditioning and Data Acquisition, Legacy Platform Refresh.
Automotive Body-Control Module
The S912XD256J1MAA fits an automotive body-control platform that combines centralized logic, switch inputs, and controlled outputs. Its verified 16-bit HCS12X identity, 80 MHz listed rate, 256 KB flash, and automotive temperature designation support the basic processing and code-capacity requirements of an embedded vehicle controller. The 80-QFP package provides 80 external terminals for power, ground, buses, timers, communications, and I/O. Before schematic release, confirm the exact pin multiplexing, transceiver interfaces, low-power behavior, and AEC-Q100 status in the manufacturer documentation.
推荐
Motor and Actuator Control
The S912XD256J1MAA can serve as the supervisory controller in a motor or actuator subsystem where deterministic embedded logic coordinates command inputs, sensing, protection sequencing, and external drivers. Its listed 80 MHz clock provides substantial processing headroom relative to many legacy 16-bit designs, while 256 KB flash accommodates application code and lookup data. The 80-QFP footprint is useful when several timer, communication, and interrupt-related connections are required. Actual control-loop performance still depends on verified timer, PWM, ADC, timer-resolution, and interrupt specifications that are absent from the supplied dataset.
推荐
Vehicle Network Gateway
The S912XD256J1MAA is suitable as a candidate for a vehicle network gateway or distributed communications node when firmware must preserve an established HCS12X platform. Its 256 KB flash supports embedded protocol handlers and application logic, while the verified 80-lead QFP offers more external routing options than a compact MCU package. A production design must verify the required CAN, LIN, or other network controllers, bus timing, transceiver interfaces, clocking, and multiplexing against the exact datasheet. Software drivers and interrupt behavior must also remain compatible with the target mask and toolchain.
推荐
Industrial Equipment Controller
The S912XD256J1MAA can be evaluated for industrial equipment controllers that retain 16-bit embedded software and require a substantial code-memory footprint. The listed 80 MHz operation and 256 KB flash provide headroom for sequencing, diagnostics, communications, and supervisory control, while the 80-QFP package supports external interfaces and test points. Industrial use requires checking the exact temperature range, supply limits, clock accuracy, watchdog behavior, communication peripherals, and long-term supply status. A migration to another MCU family should be considered only if software and peripheral requirements outweigh package reuse.
推荐
Sensor Conditioning and Data Acquisition
The S912XD256J1MAA is a candidate for sensor-conditioning and acquisition systems where a microcontroller must combine external analog or digital sensing with control and logging functions. Its verified 256 KB flash can hold application firmware and calibration information, and the 80-terminal QFP allows connection to sensors, converters, communications, and actuators. Suitability depends on the exact ADC resolution, sample rate, input channels, comparators, timers, and interface blocks, none of which are specified in the verified web data. Engineers should verify acquisition timing and pin allocation directly from the manufacturer documentation before prototyping.
推荐
Legacy Platform Refresh
The S912XD256J1MAA is most compelling in a legacy-platform refresh where maintaining HCS12X software, memory organization, and an established 80-QFP design is more valuable than adopting a new architecture. Its listed 16-bit processor, 80 MHz rate, and 256 KB flash match the broad capacity class expected by many legacy embedded-control applications. Because software image, peripheral mapping, mask revisions, and toolchain support govern compatibility more than headline frequency, preserve the original firmware environment and perform regression testing. A PCB-only substitution should never be assumed from the family name alone.
推荐
推荐产品汇总
工程参考数据： S912XD256J1MAA ——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 | S912XDT256F1VAA | S912XES384J2CAL | S912XEG384AVAGR | S912XET256J1CALR | MC9S12XDQ256VPV |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Freescale Semiconductor |
| Package | 80-QFP (14 x 14 mm) | 80-QFP (14 x 14 mm), package compatibility requires verification | 80-QFP (14 x 14 mm), package compatibility requires verification | 80-QFP (14 x 14 mm), package compatibility requires verification | 80-QFP (14 x 14 mm), package compatibility requires verification | 80-QFP (14 x 14 mm), package compatibility requires verification |
| Controller Family | HCS12X | HCS12X | HCS12X | HCS12X | HCS12X | S12X |
| Flash Memory | 256 KB | 256 KB | 384 KB | 384 KB | 256 KB | 256 KB |
| Pin Count | 80 terminals | 80 terminals | 80 terminals | 80 terminals | 80 terminals | 80 terminals |
关键差异点
- Directly verified device identity （对比 S912XDT256F1VAA)
- Lower flash option versus 384 KB family candidates （对比 S912XES384J2CAL)
- Automotive temperature-grade listing （对比 MC9S12XDQ256VPV)
设计说明
Treat the 80-QFP land pattern as a high-pin-count assembly requiring exact manufacturer dimensions, solder-mask clearance, and paste-volume validation. The verified package is 14 x 14 mm, but body tolerances, lead span, seating plane, and recommended footprint were not provided. Do not derive a footprint from a generic QFP drawing; cross-check the package drawing and assembly process, then inspect lead alignment and solder joints after reflow.
Supply voltage and decoupling requirements are [DATA_NEEDED] in the verified data, so the power tree cannot be finalized safely from catalog snippets. Before schematic release, identify all VDD and VSS pins, voltage tolerances, sequencing constraints, internal reset behavior, and power-consumption modes from the manufacturer documentation. Then size bulk and local bypass capacitance against the published high-frequency impedance and transient requirements rather than copying generic values.
Do not equate the S912X family designation with automatic software or pin compatibility. Validate the exact device mask, memory size, package suffix, temperature grade, pin multiplexing, peripheral set, interrupt vector table, and compiler target. For any proposed alternate, compare every PCB signal and run a firmware and timing regression before substituting it in a vehicle or industrial controller.
Although the verified snippets do not provide bus timing, transceiver, or drive-strength data, an 80-lead controller commonly connects to external clocks, communication links, and high-fanout peripherals. Use short return paths, continuous ground planes, controlled impedance routing where applicable, and defined test points. Check every high-speed or externally exposed signal against the exact datasheet timing budget and add appropriate protection where exposed to external cables.
合规信息
LCSC and JLCPCB search results identify the part as RoHS compliant. Partstack labels the temperature grade as automotive, but the supplied data does not explicitly state AEC-Q100 qualification. Other environmental and material compliance claims are not available.
