MC9S08QE128CLK - 8-bit S08 MCU, 128KB Flash, 50MHz | NXP
部品番号: MC9S08QE128CLK ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $5.1 | $5.10 |
| 10 | $4.72 | $47.20 |
| 100 | $4.35 | $435.00 |
| 500 | $4.11 | $2,055.00 |
| 1,000 | $3.95 | $3,950.00 |
MC9S08QE128CLK 概要
A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals such as timers, serial interfaces, and ADCs into one package. MCUs sit at the center of the embedded systems hierarchy: within it, the S08QE family occupies the 8-bit microcontroller tier of NXP's broader portfolio of embedded processors and power-management-adjacent control devices.
Key features include 128KB in-application-programmable Flash, a 12-bit ADC (S08ADC12V1), an internal clock source (S08ICSV3) supporting an optional external reference clock, background debugging with in-circuit breakpoint capability, and the HC08 instruction set extended with the BGND instruction for background debugging. The CLK suffix indicates a specific speed/bin and tray packaging option.
Architecturally, the MC9S08QE128 is built around the HCS08 Central Processor Unit (S08 CPU), a CISC core executing the HC08 instruction set. The on-chip Internal Clock Source module allows fully internal clocking or external crystal/reference operation, and the 32KHz RTC and low-power modes support battery-operated designs; per NXP, a related family variant adds an LCD driver for portable electronics.
Typical applications include industrial control and automation nodes, consumer appliance interfaces, low-power portable electronics, and legacy 8-bit system maintenance where the Flexis migration path to MCF51QE128 is valuable. The 80-pin LQFP provides generous GPIO for keypad scanning, display driving, and multi-sensor interfacing.
Design consideration: because this part is End-of-Life per the NXP product page, new designs should verify remaining authorized distributor stock and plan a migration strategy using the Flexis-compatible MCF51QE128 family.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with all pricing stated as of 2026-10-18.
ドロップイン代替品: MC9S08QE128CLK — 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: MC9S08QE128CLK （同一形状・フットプリント） — 相違点: Package, Core, Core Processor, Flash Memory, Instruction Set.
クイック比較ツール — 並列比較する代替部品を選択:
MC9S08QE128CLD
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC9S08DV128CLH
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$4.42 / 個
データシートを見る →MC9S08DV128MLH
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$7.1 / 個
データシートを見る →MC9S08LH36CLK
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
価格はお問い合わせください
データシートを見る →MCF51JM128VLK
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MCF51MM256VML
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$9.2 / 個
データシートを見る →MC9S08QE128CLK 最大定格＆電気的特性
| Core Processor | S08 (HCS08 CISC) |
| Core Size | 8-Bit |
| Speed (Core Clock) | 50 MHz |
| Flash Memory | 128KB (128K x 8) |
| 電源電圧 | 2.5 V / 3.3 V |
| パッケージ | 80-LQFP (14x14 mm) |
| 実装タイプ | Surface Mount |
| Packaging | Tray |
| ADC Resolution | 12-bit (S08ADC12V1) |
| Instruction Set | HC08 with added BGND instruction |
| Debug Support | Background debugging system, breakpoint capability |
| Clock Source | Internal Clock Source (S08ICSV3) with optional external reference clock (ICSERCLK) |
| Product Series | S08QE / Flexis MC9S08QE128 Series |
| Pin-Compatible 32-bit Companion | MCF51QE128 (ColdFire V1) |
| RTC | 32KHz RTC (per NXP family description) |
| ライフサイクル状態 | End of Life (per NXP product page) |
MC9S08QE128CLK 80-lqfp (14x14 mm) ピン配置ガイド
MC9S08QE128CLK (80-lqfp (14x14 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: MC9S08QE128CLK.
詳細は データシート をご参照ください。
主な用途
MC9S08QE128CLK の用途: 6 件s: Industrial Control and Automation Nodes, Low-Power Portable and Battery Electronics, 8-bit to 32-bit Migration Platforms (Flexis), Appliance and Consumer Product Interfaces, Sensor Acquisition and Data Logging, Automotive Body and Legacy MCU Replacement.
Industrial Control and Automation Nodes
The MC9S08QE128CLK's 128KB Flash and rich peripheral set (12-bit ADC, multiple timers and serial interfaces) make it well suited to PLC I/O modules, motor control supervision, and factory sensor hubs. The 8-bit S08 core handles deterministic bit-banged communication and simple control loops, while the 12-bit ADC digitizes analog transducer signals without an external converter. Its 2.5V/3.3V operation matches standard industrial logic rails. Because the part is End of Life, use it for sustaining existing industrial deployments and pair new designs with the Flexis MCF51QE128 migration path or active S08 family members to preserve long-term supply.
おすすめ
Low-Power Portable and Battery Electronics
NXP positions the S08QE family, particularly variants with the integrated LCD driver and 32KHz RTC, for low-power portable electronics such as metering displays, handheld instruments, and remote controls. The internal clock source (S08ICSV3) with optional 32KHz external reference (ICSERCLK) allows low-frequency timing during stop modes, conserving battery, and wake-ups are serviced quickly by the 50MHz-capable HCS08 core. The 80-pin LQFP offers enough GPIO to drive segment LCDs, keypads, and multiple sensors from one MCU. For new portable designs, confirm current availability given the EOL status and consider the pin-compatible MCF51QE128 Flexis device for continued sourcing.
おすすめ
8-bit to 32-bit Migration Platforms (Flexis)
The defining application of the MC9S08QE128 is the Flexis migration scenario: NXP's first family pairing a pin-, peripheral- and tool-compatible 8-bit S08 device with a 32-bit MCF51QE128 ColdFire device. Products that outgrow 8-bit headroom - more complex control algorithms, larger communication stacks, more RTOS features - can move to the 32-bit companion on the same PCB footprint without board respin. The shared development tools and common peripherals mean debugger, IDE, and much driver code carry across. The MC9S08QE128CLK is thus often used as the pilot silicon on Flexis-era boards, with firmware structured for later 32-bit migration.
おすすめ
Appliance and Consumer Product Interfaces
Washing machines, cooktops, thermostats, and HVAC controllers historically used MC9S08-family MCUs for user-interface panels and simple sequencing control. The MC9S08QE128CLK's large 128KB Flash accommodates multi-language display strings, EEPROM-emulation wear leveling in Flash, and several communication protocols simultaneously. The 12-bit ADC reads temperature sensors (NTC) and user potentiometers, while timer channels generate PWM for buzzer, triac firing, or backlight dimming. The 80-LQFP GPIO count supports a full matrix keypad plus LED indicators. For sustaining engineering on appliance boards that specify this EOL part, secure last-time-buy stock or qualify the DV128-family successor.
おすすめ
Sensor Acquisition and Data Logging
With a 12-bit ADC (S08ADC12V1), on-chip RTC, and 128KB of in-application-programmable Flash, the MC9S08QE128CLK fits multi-channel sensor acquisition nodes: temperature/humidity loggers, pressure monitors, and environmental sensors. Flash used as data logging storage avoids external EEPROM/Flash ICs in space-constrained designs, and the internal clock source eliminates crystals in cost-sensitive builds where timing accuracy permits. The S08 CPU's fast interrupt handling services periodic ADC sampling reliably. Data can be uploaded over SCI/SPI to a host or radio module. Because the part is EOL, designers of new loggers should confirm stock or select an active equivalent early in the project.
おすすめ
Automotive Body and Legacy MCU Replacement
The broader MC9S08 and legacy MC908 families were widely used in non-safety automotive body electronics, from seat control modules to lighting controllers. While the MC9S08QE128CLK itself is a general-purpose industrial/consumer part, it is commonly specified as the replacement silicon when legacy MC908 parts (such as MC908GZ32 or MC908GR32 variants) reach end of life, since the HC08-compatible instruction set and similar peripheral architecture ease firmware porting. Engineers performing such upgrades should map pin functions carefully against the MC9S08QE128 Series data sheet pin assignment table and re-verify EMC behavior on the target board.
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: MC9S08QE128CLK — 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 | MC9S08QE128CLD | MC9S08DV128CLH | MCF51JM128VLK |
|---|---|---|---|---|
| Package | 80-LQFP (14x14 mm) | 80-LQFP (14x14 mm) - same | 80-LQFP - same class | 80-LQFP - same class |
| Brand | NXP Semiconductors (Freescale) | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | 8-bit S08 (HCS08 CISC) | 8-bit S08 | 8-bit S08 | 32-bit ColdFire V1 |
| Flash Memory | 128KB | 128KB | 128KB | 128KB |
| Supply Voltage | 2.5 V / 3.3 V | 2.5 V / 3.3 V | 2.5 V / 3.3 V | 2.7 V to 5.5 V |
| Special Peripherals | 12-bit ADC, ICS clock, 32KHz RTC | 12-bit ADC, LCD driver, 32KHz RTC | 12-bit ADC, enhanced SCI/timers | USB device controller, 12-bit ADC |
| Packaging Option | Tray | Tray | Tray | Tray |
主な差別化要因
- Flexis 8-bit/32-bit pin-compatible migration （vs MCF51JM128VLK)
- Larger 128KB Flash than LCD-focused siblings （vs MC9S08LH36CLK)
- EOL with official replacement path vs active DV128 （vs MC9S08DV128CLH)
設計ノート
The MC9S08QE128CLK is End of Life per the official NXP product page, which also hosts the Discontinuance and Replacement Product Change Notice. Before committing to this part, read the PCN for the last-order date and verify authorized stock at DigiKey, LCSC, and Arrow. For new designs, benchmark the pin-compatible MCF51QE128 Flexis device or the active MC9S08DV128 family so a second source exists. Excess-market stock should be screened for authenticity given EOL parts are common counterfeit targets.
The MC9S08QE128CLK operates at 2.5V or 3.3V. Use separate decoupling (100nF ceramic per supply pin pair plus one bulk capacitor) and reference the 12-bit ADC to a quiet analog rail for best conversion accuracy. The internal clock source (S08ICSV3) allows crystal-less operation, but for RTC-grade timing use the 32KHz external reference (ICSERCLK) path described in Chapter 11 of the MC9S08QE128 Reference Manual. Measure actual supply current in stop/wait modes on your board, as peripheral configuration strongly affects low-power performance.
For the 80-LQFP (14x14 mm) footprint, follow the pin assignment table in Section 2 of the MC9S08QE128 Series Data Sheet, Rev. 7, and use Table 2 to confirm which pins exist on the chosen package pin-count. Route the BDM debug pins to a standard 6-pin or 10-pin header during PCB layout - this is a low-cost provision that avoids board rework during firmware development. Keep analog ADC input traces short and away from switching signals to preserve 12-bit resolution.
コンプライアンス情報
Compliance must be confirmed via the Environmental Quality section of the official NXP MC9S08QE128CLK product page. Not AEC-Q100 data found in provided sources; part is a general-purpose industrial/consumer MCU.
