MC908EY8ACFJER - 8-Bit 8MHz Microcontroller | NXP
料号： MC908EY8ACFJER ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.44 | $5.44 |
| 10 | $5.44 | $54.40 |
| 100 | $5.44 | $544.00 |
| 500 | $5.44 | $2,720.00 |
| 1,000 | $5.44 | $5,440.00 |
MC908EY8ACFJER 概述
An 8-bit microcontroller is a compact programmable controller intended to collect sensor or switch inputs, execute control logic, and operate actuators or communications peripherals. The M68HC08 architecture belongs to the embedded-microcontroller hierarchy, where CPU, memory, timers, serial interfaces, and clocking are integrated on one semiconductor device. This integration reduces component count and makes the MC908EY8ACFJER suitable for compact control, measurement, and automation products.
The verified feature set identifies an SPI serial peripheral interface, an internal clock generator module, and two 16-bit, two-channel timer blocks labeled TIMA and TIMB with PWM capability. The 8 MHz internal bus frequency supports control-loop processing, while the flash memory provides nonvolatile firmware storage. The package is a 32-LQFP surface-mount format, allowing compact PCB assembly and manufacturing compatibility with automated production processes.
The MC908EY8ACFJER is associated by the verified distributor data with the HC08 embedded-microcontroller category and is suitable for industrial control, IoT devices, embedded automation, motor-control, metering, and low-power board designs. Its timer and PWM resources can support timing, pulse generation, and basic motor or actuator control functions. Its SPI interface can connect to sensors, memory, displays, and other serial peripherals when the electrical and protocol requirements match.
Designers should verify the exact pin functions, electrical limits, memory organization, clock configuration, peripheral multiplexing, and programming requirements against the manufacturer datasheet before final PCB release. Because the supplied search results identify different memory-capacity descriptions, this page preserves the distributor specification of 8 KB flash and 512 bytes of RAM and flags unresolved device details for verification.
This page consolidates distributor specifications, source links, application context, and procurement information for MC908EY8ACFJER. It is intended to support initial engineering evaluation and sourcing, while datasheet-level validation remains necessary for production design, software bring-up, and manufacturing qualification.
直接替换替代料： MC908EY8ACFJER ——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： MC908EY8ACFJER （相同外形与封装尺寸） ——差异在于 Package, Architecture, Supply Voltage, Core, Flash Memory.
快速对比工具——选择替代料号进行并排对比：
MC908KX2CDWER
✅ 直接替换✓ 有现货
$3.5196 / 个
查看数据手册 →MC908QB4CDWE
✅ 直接替换✓ 有现货
$3.5 / 个
查看数据手册 →MC908JL8CDWER
✅ 直接替换✓ 有现货
$5.45 / 个
查看数据手册 →MC908QB8CDWE
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →MC908QY4ACDWE
✅ 直接替换✓ 有现货
$4.3345 / 个
查看数据手册 →MC908EY8ACFJER 最大额定值与电气特性
| Product Type | 8-bit embedded microcontroller |
| Architecture | M68HC08 family |
| Internal Bus Frequency | 8 MHz at 5 V |
| Flash Memory | 8 KB |
| On-Chip RAM | 512 bytes |
| Serial Peripheral Interface | SPI |
| Internal Clock Generator | Internal clock generator module (ICG) |
| Timer Resources | Two 16-bit, 2-channel timers (TIMA and TIMB) |
| Timer Features | PWM |
| 封装 | 32-LQFP (7 mm x 7 mm) |
| 安装类型 | Surface mount |
| RoHS 状态 | unknown |
| REACH Status | unknown |
| Automotive Qualification | unknown |
MC908EY8ACFJER 32-lqfp (7 mm x 7 mm) 引脚配置指南
MC908EY8ACFJER（32-lqfp (7 mm x 7 mm) 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： MC908EY8ACFJER.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MC908EY8ACFJER 适用于 6 应用s: Industrial Control, IoT Sensor Interface, Motor Control and PWM, Metering and Data Acquisition, Low-Power Board Designs, SPI-Based Peripheral Controller.
Industrial Control
The MC908EY8ACFJER fits compact industrial-control boards that combine digital inputs, timing functions, and serial sensor communication. Its verified 8-bit M68HC08 core operates at an 8 MHz internal bus frequency at 5 V, while 8 KB of flash provides space for embedded control firmware and 512 bytes of RAM supports working variables. The two 16-bit two-channel timers with PWM can produce deterministic timing signals for relays, indicators, actuators, or simple motor-control functions. SPI can connect suitable sensors, memory devices, or industrial peripherals. The 32-LQFP package supports compact surface-mount assemblies. Before production use, verify industrial temperature limits, isolation, EMC requirements, protection networks, and any required qualification because these details are not present in the supplied data.
推荐
IoT Sensor Interface
MC908EY8ACFJER can serve as the local control MCU for a small IoT sensor node when the design is centered on an 8-bit embedded controller rather than a high-bandwidth application processor. The verified SPI interface provides a path to compatible sensors or serial peripherals, while the timers support periodic sampling, pulse measurement, or simple output timing. Its 8 KB flash and 512 bytes of RAM are appropriate for focused firmware with limited buffering and protocol handling. The 8 MHz internal bus frequency at 5 V can execute deterministic control tasks without requiring an external high-speed processor. Designers should account for wireless-module interface requirements, low-power modes, antenna and RF layout, and exact I/O mappings before selecting the device, since those specifications are not included in the verified data.
推荐
Motor Control and PWM
The MC908EY8ACFJER is a candidate for basic motor-control and actuator-control functions because the verified feature set identifies two 16-bit, two-channel timers labeled TIMA and TIMB with PWM capability. Those timers can generate repeatable timing and pulse-width-controlled outputs for low- or moderate-complexity motor drive logic, while the 8-bit CPU can coordinate direction, limits, and interlocks. The device’s 8 MHz internal bus frequency at 5 V provides a defined operating point for deterministic firmware execution, and its 32-LQFP package helps reduce board size. A complete motor design still requires verified pin multiplexing, power-stage components, current sensing, protection, thermal design, and electromagnetic-compatibility planning; none of those parameters were supplied in the verified data.
推荐
Metering and Data Acquisition
MC908EY8ACFJER can be evaluated for compact metering or data-acquisition front ends where an embedded controller must sample external signals and perform local control. The verified M68HC08 architecture, 8 MHz internal bus frequency at 5 V, and timer resources support periodic measurement timing and deterministic signal handling. SPI may be useful for compatible external sensors or storage devices, although the target’s ADC specifications are not included in the supplied data. The 8 KB flash capacity favors focused firmware, and 512 bytes of RAM requires careful buffer sizing. For metering products, engineers must verify analog-input availability, input bandwidth, calibration strategy, accuracy, sensor excitation, and communication protocol requirements before committing to the device.
推荐
Low-Power Board Designs
The MC908EY8ACFJER may suit low-power embedded board designs that require an integrated MCU, flash, RAM, timers, and SPI rather than a collection of discrete control components. Its verified 8-bit architecture and internal clock generator support compact control logic, while the two timer blocks can reduce the need for external timing components in suitable designs. The 32-LQFP package is suitable for automated surface-mount assembly. However, the supplied data does not specify sleep modes, active current, shutdown behavior, or operating voltage, so low-power suitability cannot be confirmed quantitatively. Review the official datasheet and measure the complete board current under the intended operating states before selecting this MCU for battery-powered equipment.
推荐
SPI-Based Peripheral Controller
MC908EY8ACFJER is appropriate for a small SPI-based peripheral controller when the board needs an 8-bit MCU to coordinate sensors, memory, displays, or other compatible serial devices. The verified feature list explicitly identifies SPI, while the 8 MHz internal bus frequency at 5 V and timer resources provide a basis for protocol timing and periodic control tasks. Its 8 KB flash and 512 bytes of RAM constrain firmware and buffering, so the application should avoid unnecessarily large protocol stacks or data buffers. The 32-LQFP package also requires careful verification of every multiplexed pin and signal-level requirement. Before release, check SPI electrical limits, pin multiplexing, clocking, reset behavior, and firmware drivers against the manufacturer documentation.
推荐
推荐产品汇总
工程参考数据： MC908EY8ACFJER ——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 | MC908KX2CDWER | MC908QB4CDWE | MC908JL8CDWER | MC908QB8CDWE | MC908QY4ACDWE |
|---|---|---|---|---|---|---|
| Package | 32-LQFP (7 mm x 7 mm) | 32-LQFP (7 mm x 7 mm) | 32-LQFP (7 mm x 7 mm) | 32-LQFP (7 mm x 7 mm) | 32-LQFP (7 mm x 7 mm) | 32-LQFP (7 mm x 7 mm) |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
关键差异点
- Integrated M68HC08 control platform （对比 MC908KX2CDWER)
- Dedicated timer and PWM resources （对比 MC908QB4CDWE)
- Compact 32-LQFP implementation （对比 MC908JL8CDWER)
- SPI and internal clock integration （对比 MC908QB8CDWE)
设计说明
Start the layout from the official NXP pinout rather than the distributor package description. Confirm every 32-LQFP pin, including power, ground, reset, clock, debug, and alternate-function signals, against the manufacturer datasheet. Keep the MCU footprint within the PCB manufacturer’s recommended land pattern, verify exposed-pad requirements, and preserve adequate clearance around high-speed or sensitive nets. Because the supplied data does not include the complete pin table, schematic and PCB release should wait for datasheet-level verification.
The verified listing specifies an 8 MHz internal bus frequency at 5 V, but it does not provide the complete input-voltage range, current consumption, or power-pin requirements. Before powering the board, verify the allowed supply voltage and decoupling recommendations in the manufacturer datasheet. Place required bulk and bypass capacitors close to the appropriate supply pins, check startup and reset sequencing, and validate brownout behavior across the complete operating system. Do not infer current limits from the 8 MHz clock specification.
Do not treat a shared M68HC08 or HC08 family label as proof of drop-in compatibility. The alternatives supplied here have not been confirmed by a manufacturer cross-reference, and their pin, memory, clock, and peripheral differences are not documented in the verified data. For a replacement, compare the complete package pinout, alternate functions, memory map, timer architecture, serial peripherals, electrical limits, and firmware toolchain. A successful software build does not prove hardware or timing compatibility.
Route SPI and timer signals with attention to edge-rate behavior, return paths, and nearby switching sources. Although the device is an 8-bit MCU operating at a comparatively modest 8 MHz internal bus frequency at 5 V, external SPI edges can be faster than the CPU clock and may still require controlled impedance or short routing in sensitive installations. Keep crystal or clock-generator components close to their assigned pins, maintain a continuous ground reference, and isolate analog or sensor routing from motor and switching-power paths.
The supplied data does not provide junction-temperature limits, package thermal resistance, operating-temperature range, or power dissipation. These values must be obtained from the manufacturer datasheet before calculating thermal margins. Estimated: power dissipation equals supply voltage multiplied by current minus output-related load power, but the required current and efficiency values are not provided, so no numerical estimate is made. Use PCB thermal vias, controlled copper area, and the package’s specified thermal characteristics once confirmed.
合规信息
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than inferred from the manufacturer name or product category.