MC9S08QE4CTG - 8-Bit 20MHz MCU with 4KB Flash | NXP
部品番号: MC9S08QE4CTG ✗ 生産終了MC9S08QE4CTG 概要
An S08 microcontroller is an 8-bit embedded-processing device within the broader microcontroller and semiconductor hierarchy. It combines a CPU, program flash, data RAM, I/O ports, timers, serial interfaces, and analog or communication peripherals on one integrated circuit. The MC9S08QE4CTG is part of the S08 family, which targets cost-sensitive control systems, human-interface devices, simple data acquisition, and USB-connected accessories.
The principal device characteristics include a 20 MHz maximum operating frequency, 4 KB of internal flash, 512 bytes of RAM, a 12-bit ADC feature, and an integrated USB controller. A flexible timer interface supports periodic timing and event-driven control functions. These resources allow the MCU to consolidate functions that might otherwise require discrete timing, interface, or conversion circuitry.
The S08 architecture emphasizes compact code density and efficient control processing. Flash memory supports firmware retention and in-circuit programming, while the 512-byte RAM provides working memory for stack operations, state variables, and data buffers. The 16-pin TSSOP package reduces board area compared with larger leaded packages and is suitable for cost-sensitive, high-density consumer and industrial equipment.
Typical applications include USB peripherals, keypad and menu interfaces, simple instrumentation, motor or relay control, low-speed data acquisition, and compact embedded-control modules. The 20 MHz clock rate provides sufficient response for supervisory control loops, while the integrated USB controller simplifies connection to a host computer or USB interface circuit.
Designers should verify the power-supply voltage, available I/O count, oscillator requirements, ADC reference details, and exposed peripheral assignments against the manufacturer datasheet before layout. Because the NXP product page identifies this MPN as end of life, production purchasing should account for limited future availability and qualify any drop-in replacement for firmware, timing, USB, and brownout behavior.
This page consolidates verified distributor pricing, lifecycle information, same-family drop-in candidates, and practical selection guidance that helps engineers evaluate replacement risk beyond a simple package and clock-frequency match.
ドロップイン代替品: MC9S08QE4CTG — 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: MC9S08QE4CTG （同一形状・フットプリント） — 相違点: Maximum CPU Frequency, Operating Temperature, Package, RAM.
MC9S08QE8CTG
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →MC9S08QE16CTG
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC9S08QE32CTG
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC9S08QE64CTG
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC9S08QE4CTG 最大定格＆電気的特性
| Microcontroller Type | 8-bit S08 microcontroller |
| Maximum CPU Frequency | 20 MHz |
| Program Memory | 4 KB flash |
| Flash Organization | 4K x 8 |
| RAM | 512 bytes |
| ADC Resolution | 12 bit |
| Integrated USB Controller | Yes |
| Timer Interface | Flexible timer interface |
| パッケージ | 16-pin TSSOP, 4.40 mm width |
| 動作温度 | -40 °C to +85 °C |
| 実装タイプ | Surface mount |
| ライフサイクル状態 | End of life |
MC9S08QE4CTG 16-pin tssop, 4.40 mm width ピン配置ガイド
MC9S08QE4CTG (16-pin tssop, 4.40 mm width 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: MC9S08QE4CTG.
詳細は データシート をご参照ください。
主な用途
MC9S08QE4CTG の用途: 6 件s: USB Desktop and Portable Accessories, Keypad and Menu Interface Control, Simple Data Acquisition and Control, Timer-Based Appliance and Relay Control, Battery-Powered Sensor Node, Industrial Control and HMI Module.
USB Desktop and Portable Accessories
The MC9S08QE4CTG fits compact USB accessories because it combines an integrated USB controller with an 8-bit S08 core operating up to 20 MHz. Its 4 KB flash and 512 bytes RAM are sufficient for small control or interface firmware when the application does not require large buffers. Placing the MCU beside the USB connector and required passives can reduce board area versus a discrete USB interface solution. The principal tradeoff is lifecycle risk: NXP marks the device end of life, so a production accessory should include a qualified second source or sufficient last-time-buy inventory.
おすすめ
Keypad and Menu Interface Control
The MC9S08QE4CTG can scan a keypad, manage menu state, and debounce user inputs in compact control panels. Its 20 MHz operating frequency provides ample response for polling and display updates, while the 4 KB flash supports compact menu logic and the 512 bytes RAM supports transient key and navigation state. The 16-pin TSSOP also preserves PCB area in space-constrained equipment. Firmware should include debounce timing and verify the exact I/O and power assignments against the datasheet before layout.
おすすめ
Simple Data Acquisition and Control
The MC9S08QE4CTG is appropriate for low-channel instrumentation that combines a 12-bit ADC feature with digital control functions. The MCU can sample analog inputs, apply filtering and calibration, and report results through a serial or USB interface. Its 20 MHz clock supports responsive control sequencing, while the 4 KB flash limits firmware to smaller measurement routines. Designers should verify ADC reference accuracy, sampling requirements, and available I/O because those detailed electrical limits were not included in the supplied source data.
おすすめ
Timer-Based Appliance and Relay Control
The MC9S08QE4CTG can implement timer-driven appliance, pump, relay, or sequencing control using its flexible timer interface and 20 MHz S08 core. Periodic events can be scheduled without relying on a large external timer, while the 4 KB flash stores a compact state machine and the 512 bytes RAM holds counters and operating flags. The 16-pin TSSOP is useful in compact controller boards. Production designs must check output-driver ratings, isolation requirements, flyback components, and whether the end-of-life status makes a long-term supply commitment necessary.
おすすめ
Battery-Powered Sensor Node
MC9S08QE4CTG can serve as the local controller in a compact battery-powered sensor node that performs periodic acquisition, threshold decisions, and USB configuration. The 4 KB flash and 512 bytes RAM align with lightweight firmware, and the 20 MHz core supports responsive handling of sensor and digital inputs. The integrated USB controller can simplify configuration or data export without a separate USB bridge. Before deployment, verify sleep-mode behavior, supply-voltage limits, ADC reference stability, and quiescent current because those values were not supplied in the verified data.
おすすめ
Industrial Control and HMI Module
The MC9S08QE4CTG can act as a secondary controller in industrial HMI or equipment modules requiring local logic, timers, digital I/O, and USB service access. Its 4 KB flash is appropriate for supervisory routines rather than a full graphical interface, while the 16-pin TSSOP supports dense board placement. The part should be selected only when the 20 MHz processing rate and 512 bytes RAM match the task. Industrial qualification requirements, extended-temperature variants, EMC performance, and lifecycle continuity must be checked separately because the verified data confirms only the -40 °C to +85 °C range and end-of-life status.
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: MC9S08QE4CTG — 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 | MC9S08QE8CTG | MC9S08QE16CTG | MC9S08QE32CTG | MC9S08QE64CTG |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP |
| Program Memory | 4 KB flash | 8 KB flash | 16 KB flash | 32 KB flash | 64 KB flash |
主な差別化要因
- Lower verified flash capacity than the same-family alternatives （vs MC9S08QE8CTG)
- Compact 4 KB embedded-control configuration （vs MC9S08QE16CTG)
- Lower named memory requirement than the largest listed family candidates （vs MC9S08QE64CTG)
- Verified distributor inventory despite end-of-life status （vs MC9S08QE8CTG)
設計ノート
Do not treat a matching TSSOP outline as proof of software compatibility. Before substituting an S08QE variant, compare power pins, oscillator pins, reset behavior, USB D+/D− assignments, ADC inputs, timer outputs, and all multiplexed I/O against the manufacturer datasheets. Also verify that the replacement's flash organization and memory map preserve the application firmware. Because MC9S08QE4CTG is end of life, retain a tested system-level qualification record for any proposed replacement.
Verify the permitted supply range, operating current, and brownout thresholds directly from the manufacturer datasheet because those electrical limits were not included in the supplied source data. Place the MCU's decoupling capacitors close to the supply and ground pins, keep USB and oscillator return paths short, and provide clean power for the integrated USB controller. Validate startup and reset behavior across the complete supply range rather than relying only on typical operating conditions.
Route the oscillator network, programming and debug signals, USB differential pair, and reset network according to the manufacturer layout guidance. Keep the oscillator away from USB data and switching-power nodes to reduce noise coupling. Confirm the exact 16-pin TSSOP orientation and exposed thermal or routing requirements in the package drawing before releasing artwork. A complete verified pin table was unavailable, so schematic-to-PCB checks are especially important.
The 20 MHz operating speed and 512 bytes of RAM do not by themselves indicate a high thermal load, but actual dissipation depends on supply voltage, clock activity, I/O loading, and ambient conditions. For production thermal qualification, measure the operating current in the final firmware and use the manufacturer's package thermal data. The supplied sources did not provide junction-temperature limits, package thermal resistance, or power ratings, so those figures must be obtained from the datasheet rather than estimated.
コンプライアンス情報
The supplied manufacturer and distributor results did not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 qualification was not identified and is therefore not applicable for the listed general-purpose device.
