MC9S08QE8CLC - 8-bit S08 MCU 8KB Flash 20MHz 32-LQFP | NXP
料号： MC9S08QE8CLC ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $121.44 | $121.44 |
| 10 | $115.37 | $1,153.70 |
| 100 | $103.22 | $10,322.00 |
| 500 | $97.15 | $48,575.00 |
| 1,000 | $91.08 | $91,080.00 |
MC9S08QE8CLC 概述
An 8-bit microcontroller is a single-chip computer whose CPU processes data in 8-bit words, occupying the entry level of the microcontroller hierarchy: MCU -> embedded processor -> system-on-chip. The S08 core is NXP (formerly Freescale Semiconductor) enhanced successor to the 68HC08 architecture, using a CISC instruction set with an internal bus clock up to 10MHz (20MHz CPU rate). MCUs of this class integrate program flash, RAM, clocks, analog peripherals and I/O on one die, eliminating external memory chips in cost-sensitive embedded designs.
Key features of the MC9S08QE8CLC include 8KB (8K x 8) of flash program memory with in-circuit reprogramming, a 10-channel 12-bit ADC that resolves inputs to 0.8mV steps on a 3.3V reference, 26 general-purpose I/O pins, and an integrated analog comparator. The internal clock source option removes the need for an external crystal in non-timing-critical applications, and the device belongs to the Flexis QE series, the first family in Freescale's Flexis series pairing pin-compatible 8-bit and 32-bit devices.
Technically, the S08QE family combines the enhanced HCS08 CPU with low-power wait and stop modes, background debug via a single-wire interface, and a rich analog front end (12-bit ADC plus comparator) unusual for 8-bit parts. The 32-LQFP 7x7mm body offers 0.8mm pin pitch for hand-solderable prototyping.
Typical applications include automotive body modules and sensor nodes, industrial control panels, appliance user interfaces, battery chargers, and low-power monitoring systems where the 12-bit ADC and comparator replace external analog components.
Design consideration: the part is End-of-Life per the NXP product page, so new designs should verify remaining distributor stock or plan migration to a recommended successor; operating temperature is -40C to +85C, adequate for industrial but not full automotive profiles.
This page synthesizes distributor pricing (DigiKey, Mouser, LCSC, Octopart), drop-in alternatives, lifecycle status, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： MC9S08QE8CLC ——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： MC9S08QE8CLC （相同外形与封装尺寸） ——差异在于 Series, Program Memory Size, RAM Size, Core Processor, Number of I/O.
快速对比工具——选择替代料号进行并排对比：
MC9S08RE8CFJER
✅ 直接替换✓ 有现货
$4.18 / 个
查看数据手册 →MC9S08QE16CLC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MC9S08RE16CFDER
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.49 / 个
查看数据手册 →MC9S08SV8CLC
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.8 / 个
查看数据手册 →MC9S08LL36CLK
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.84 / 个
查看数据手册 →MC9S08LC36LK
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$11.19 / 个
查看数据手册 →MC9S08QE8CLC 最大额定值与电气特性
| Core Processor | S08 (8-bit HCS08) |
| Core Size | 8-bit |
| Maximum CPU Frequency | 20 MHz |
| Program Memory Size | 8KB (8K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 512B |
| ADC Resolution | 12-bit |
| ADC Channels | 10 channels |
| Number of I/O | 26 |
| Analog Comparator | Yes (1 comparator) |
| Clock Source | Internal clock source / external crystal |
| Architecture | CISC |
| 封装 | 32-LQFP (7x7 mm) |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to 85C |
| Series | S08QE (Flexis QE series) |
| 生命周期状态 | End of Life (per NXP product page) |
MC9S08QE8CLC 32-lqfp (7x7 mm) 引脚配置指南
MC9S08QE8CLC（32-lqfp (7x7 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： MC9S08QE8CLC.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MC9S08QE8CLC 适用于 6 应用s: Automotive Body and Sensor Modules, Industrial Control Panels, Appliance User Interfaces, Battery Chargers and Power Management, Low-Power Monitoring and Metering, Motor Control and Embedded Sensing.
Automotive Body and Sensor Modules
The MC9S08QE8CLC fits automotive body electronics such as seat-control nodes, lighting modules, and sensor conditioners because its S08 core was designed for harsh electromagnetic environments and its 10-channel 12-bit ADC digitizes resistive and voltage-output sensors to 0.8mV resolution without an external converter. The integrated analog comparator provides switch-detection and over-current flags in hardware, freeing CPU cycles for protocol handling such as LIN-frame processing. In a typical circuit, the internal clock source drives the CPU so no crystal is needed on vibration-prone boards, and the -40C to +85C rating covers cabin and engine-bay-adjacent zones. Designers should note the part is End of Life and plan last-time-buy or migration to a pin-compatible QE-family successor for future builds.
推荐
Industrial Control Panels
In industrial control panels, the MC9S08QE8CLC acts as a low-cost sequencer that reads pushbuttons, potentiometers, and analog transducers through its 12-bit ADC while driving relays and status LEDs from its 26 GPIO pins. The 20MHz S08 core executes CISC instruction handling for scan-loop control logic with headroom, and the analog comparator can monitor a supply rail or current-sense line and interrupt the CPU immediately on fault conditions. Its 32-LQFP 7x7mm package with 0.8mm pitch supports wave-friendly reflow assembly and hand rework in low-volume panel builds. Because industrial environments demand long product lifecycles, the declared End-of-Life status matters: new panel designs should choose the pin-compatible MC9S08QE16CLC, while service replacements can be fulfilled from remaining distributor stock as of 2026-10-18.
推荐
Appliance User Interfaces
Appliance control interfaces - cooktop knobs, washing-machine selectors, and oven thermistors - are a natural fit for the MC9S08QE8CLC. Its 12-bit ADC reads NTC thermistors across the -40C to +85C ambient range with adequate accuracy for temperature displays, while the analog comparator detects encoder detents or zero-cross events without CPU polling. The internal clock source eliminates a crystal from the BOM in timing-tolerant UIs, reducing cost and a common failure point, and 8KB flash is sufficient for state machines, debounce logic, and a simple segment-display driver. The 26 GPIOs directly drive LEDs and TRIAC-control logic. Since NXP has ended production, volume appliance manufacturers should qualify the pin-compatible MC9S08QE16CLC and hold remaining QE8 stock for field-service spares.
推荐
Battery Chargers and Power Management
Smart battery chargers benefit from the MC9S08QE8CLC's analog front end: the 10-channel 12-bit ADC samples battery voltage, current-sense shunts, and pack temperature simultaneously, enabling CC/CV charging profiles with 0.8mV measurement granularity on a 3.3V reference. The on-chip comparator can implement a hardware over-voltage cutoff that acts even if firmware hangs, a safety feature regulators value. Its low-power stop and wait modes keep housekeeping current low between conversion cycles, extending standby life in adapter-powered designs. The 20MHz core comfortably runs PWM generation for a buck-stage MOSFET driver using timer modules. Given the End-of-Life declaration on NXP's product page, charger designs entering production now should adopt the same-footprint MC9S08QE16CLC to secure long-term supply.
推荐
Low-Power Monitoring and Metering
For sub-metering, environmental dataloggers, and condition-monitoring nodes, the MC9S08QE8CLC offers the right balance of analog precision and sleep current. The 12-bit ADC captures sensor channels periodically, results accumulate in the 512B RAM buffer, and stop-mode operation between samples minimizes average draw from coin cells or energy-harvesting supplies. The internal clock keeps timing acceptable for slow logging without a crystal, and 8KB flash stores the acquisition firmware plus a modest protocol stack for wired telemetry. The 32-LQFP 7x7mm outline fits compact enclosures, and surface-mount assembly suits automated production. Engineers should treat this as a sustaining-engineering component: with NXP's End-of-Life status, new metering platforms should be designed around the pin-compatible MC9S08QE16CLC from the outset.
推荐
Motor Control and Embedded Sensing
Small motor applications - fans, pumps, dampers, and hobby-scale robotics - are well served by the MC9S08QE8CLC. Timer channels generate PWM for H-bridge or MOSFET drivers, the 12-bit ADC reads back-shunt current and potentiometer command inputs, and the comparator supports hardware-based over-current trip points that react faster than firmware alone. The 20MHz S08 core runs commutation state machines for single-phase or brushed-DC motors with cycle time to spare, and 26 GPIOs handle limit switches, hall inputs, and fault signaling. Wide -40C to +85C operation suits shop-floor and outdoor equipment. Because the part is EOL, motor-control platforms should migrate to the same-footprint MC9S08QE16CLC or the S08 family successors while reusing existing board layouts unchanged.
推荐
推荐产品汇总
工程参考数据： MC9S08QE8CLC ——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 | MC9S08RE8CFJE | MC9S08QE16CLC | MC9S08SV8CLC | MC9S08LL36CLK |
|---|---|---|---|---|---|
| Package | 32-LQFP (7x7 mm) | 32-LQFP (7x7 mm) - same | 32-LQFP (7x7 mm) - same | 32-LQFP (7x7 mm) - same | 32-LQFP (7x7 mm) - same |
| Brand | NXP Semiconductors (Freescale) | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Flash Memory | 8KB | 8KB | 16KB | 8KB | 36KB |
关键差异点
- Fastest bus speed in its drop-in class （对比 MC9S08RE8CFJE)
- Upgradable flash without layout change （对比 MC9S08QE16CLC)
- Integrated analog front end （对比 MC9S08SV8CLC)
设计说明
The MC9S08QE8CLC is officially End of Life per the NXP product page. Before releasing a new PCB, confirm lifetime supply with your purchasing team: remaining DigiKey/LCSC stock will not be replenished. For ongoing production, qualify the pin-compatible MC9S08QE16CLC in the same 32-LQFP footprint so the board layout needs no rework, and add the QE16 to the approved-vendor list as a form-fit-function backup even if the QE8 is used initially.
The 32-LQFP (7x7 mm) package uses a 0.8mm pin pitch, which is hand-solderable for prototyping but still requires a proper reflow profile for production. Decouple the VDD pin with a 0.1uF ceramic capacitor placed within 5mm of the pin, and use a solid ground plane under the device. When the internal clock source is selected, keep high-current switching traces away from the MCU to prevent jitter, since there is no external crystal filtering the clock.
Estimated: the exact supply voltage range is not stated in the retrieved data, so consult the MC9S08QE8 Series datasheet electrical characteristics section (Section 3 on Mouser-hosted PDF) before finalizing the regulator. HCS08-class S08 devices are typically 2.7V to 5.5V supplies, but the ADC full-scale reference tracks VDDA, so ensure the analog supply is clean; series a ferrite bead to AVDD if a switching regulator shares the rail.
合规信息
Compliance status not stated in retrieved web data; check the Environmental Quality section of the NXP MC9S08QE8CLC product page for RoHS/REACH declarations.