MC9S08QE8CLC - 8-bit S08 MCU 8KB Flash 20MHz 32-LQFP | NXP
部品番号: MC9S08QE8CLC ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 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 概要
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.
ドロップイン代替品: MC9S08QE8CLC — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MC9S08QE8CLC （同一形状・フットプリント） — 相違点: Series, Program Memory Size, RAM Size, Core Processor, Number of I/O.
クイック比較ツール — 並列比較する代替部品を選択:
MC9S08RE8CFJER
✅ ドロップイン✓ 在庫あり
$4.18 / 個
データシートを見る →MC9S08QE16CLC
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC9S08RE16CFDER
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.49 / 個
データシートを見る →MC9S08SV8CLC
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.8 / 個
データシートを見る →MC9S08LL36CLK
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$3.84 / 個
データシートを見る →MC9S08LC36LK
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$11.19 / 個
データシートを見る →MC9S08QE8CLC 最大定格＆電気的特性
| 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 |
| パッケージ | 32-LQFP (7x7 mm) |
| 実装タイプ | Surface Mount |
| 動作温度 | -40C to 85C |
| Series | S08QE (Flexis QE series) |
| ライフサイクル状態 | End of Life (per NXP product page) |
MC9S08QE8CLC 32-lqfp (7x7 mm) ピン配置ガイド
MC9S08QE8CLC (32-lqfp (7x7 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: MC9S08QE8CLC.
詳細は データシート をご参照ください。
主な用途
MC9S08QE8CLC の用途: 6 件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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MC9S08QE8CLC — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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 |
主な差別化要因
- Fastest bus speed in its drop-in class （vs MC9S08RE8CFJE)
- Upgradable flash without layout change （vs MC9S08QE16CLC)
- Integrated analog front end （vs MC9S08SV8CLC)
設計ノート
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.
コンプライアンス情報
Compliance status not stated in retrieved web data; check the Environmental Quality section of the NXP MC9S08QE8CLC product page for RoHS/REACH declarations.