MC9S08QG8MDNE - 20MHz 8-bit Flash MCU | NXP Semiconductors
MPN： MC9S08QG8MDNE ✓ 啟用中MC9S08QG8MDNE 概覽
What is an 8-bit microcontroller? An 8-bit microcontroller is a compact embedded-processing component that executes instructions using an 8-bit data path and combines a CPU core, program memory, data memory, I/O, and peripherals in one package. MC9S08QG8MDNE belongs to the S08 8-bit MCU family, a low-power architecture suited to battery-powered devices, control panels, simple sensing systems, and cost-sensitive embedded products.
The main engineering features are a 20 MHz clock speed, 8 KB Flash program storage, six I/O ports, and operation from 1.8 V to 3.6 V. Flash memory allows firmware to be programmed and updated without a separate external memory device. The SOIC-8 package also provides a small surface-mount footprint, while the 20 MHz CPU supports deterministic control tasks in modest embedded systems.
The verified product information identifies the part as part of the S08QG family, whose devices provide serial interfaces and other peripherals for compact embedded designs. The part is listed with HC08 instruction-set compatibility and an added BGND instruction, plus a background debugging system with breakpoint capability. Those debugging features help developers inspect firmware behavior without relying on a full external debug interface.
Typical applications include low-cost consumer controls, battery-operated accessories, small industrial interface modules, sensor-conditioning nodes, and simple motor or actuator controllers. The 8-bit architecture is most appropriate when the application does not require large memory capacity, high arithmetic throughput, or a high-pin-count peripheral arrangement.
Designers should confirm the exact pin functions, peripheral availability, programming method, and electrical limits against the manufacturer datasheet before layout release. SOIC-8 routing must preserve the package pin numbering and provide adequate decoupling near the device. Because the available verified data does not state a current distributor price or lead time, purchasing decisions should use a quotation or live distributor check.
This page consolidates verified distributor specifications, lifecycle information, package details, application guidance, and replacement considerations. It separates confirmed data from unavailable parameters so engineers can make a traceable component-selection decision without relying on unverified assumptions.
直接替換替代品，適用於 MC9S08QG8MDNE — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MC9S08QG8MDNE （相同外形與佔位） — 差異在於 Package, RoHS Status, Mounting Type, Product Type, ADC.
MC9S08QG8CDNE
✅ 直接替換聯絡詢價
查看資料表 →MC9S08QG4CDNE
✅ 直接替換聯絡詢價
查看資料表 →MC9S08QG8MFQE
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S08QG8CPBE
✅ 直接替換聯絡詢價
查看資料表 →MC9S08QG8CFFER
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S08QG8MDNE 最大額定值與電氣特性
| Product Type | 8-bit S08 microcontroller |
| CPU Clock Speed | 20 MHz |
| Program Memory | 8 KB Flash |
| Memory Organization | 8K x 8 bits |
| Supply Voltage Range | 1.8 V to 3.6 V |
| I/O Ports | 6 |
| 封裝 | 8-pin SOIC, MS-012AA |
| Package Type | SOIC-8 |
| Terminal Count | 8 |
| Architecture | HCS08 with HC08 instruction set and added BGND instruction |
| Debug Support | Background debugging system with breakpoint capability |
| Process Technology | CMOS |
| RoHS 狀態 | RoHS compliant |
MC9S08QG8MDNE soic-8 腳位配置指南
MC9S08QG8MDNE（soic-8 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： MC9S08QG8MDNE.
請參閱 資料表 以查看完整腳位配置。
典型應用
MC9S08QG8MDNE 適用於 6 應用s: Battery-Powered Sensor Node, Industrial Control Panel, Battery-Powered Remote Control, Simple Motor or Actuator Controller, LED Indicator and Keypad Controller, Embedded Educational or Prototype Controller.
Battery-Powered Sensor Node
MC9S08QG8MDNE fits a small battery-powered sensor node when the product needs local control logic but not a high-performance processor. Its 20 MHz S08 CPU can execute acquisition, filtering, threshold, and actuator-control routines, while 8 KB of Flash provides room for compact firmware. The 1.8 V to 3.6 V operating range also supports low-voltage power architectures. The design should use the family’s low-power capabilities, but measured current consumption must be obtained from the manufacturer datasheet because no verified sleep or active-current figures were supplied.
推薦
Industrial Control Panel
MC9S08QG8MDNE can serve as the control MCU for a compact industrial interface with buttons, indicators, relays, and status inputs. The 20 MHz HCS08 core provides deterministic digital control, and the six I/O ports cover basic panel signaling and discrete sensing. Its SOIC-8 package simplifies assembly compared with larger leaded packages, although the limited pin count may require an I/O expander. Industrial qualification details and operating-temperature limits are not present in the verified data and must be confirmed before deployment.
推薦
Battery-Powered Remote Control
MC9S08QG8MDNE is appropriate for a battery-powered remote or accessory controller where the required firmware fits within 8 KB of Flash and the design uses a small number of digital inputs and outputs. The MCU can manage button debouncing, state logic, indicator control, and low-rate communication. A 20 MHz clock provides useful response margin for simple protocols, while the 1.8 V minimum supply supports low-energy designs. Wireless transceiver selection, current consumption, and regulatory compliance are outside the verified data and require separate engineering review.
推薦
Simple Motor or Actuator Controller
MC9S08QG8MDNE can control small motors, solenoids, or relays when the application uses discrete drivers and relatively modest timing requirements. The 20 MHz S08 core can execute position, speed, timeout, and fault-management logic, while the six I/O ports provide the interface to driver circuitry. The controller must add appropriate transistor, flyback, current-limiting, and protection components; the MCU itself does not replace the power stage. Verify maximum I/O levels and timing in the exact datasheet before connecting inductive loads.
推薦
LED Indicator and Keypad Controller
MC9S08QG8MDNE is well suited to a compact keypad, display indicator, or menu-control module because the device combines an 8-bit control core, Flash program storage, and six I/O ports in an 8-pin package. Firmware can scan switches, debounce inputs, drive LEDs, and manage simple status sequences. The SOIC-8 footprint helps minimize board size, but the pin budget may limit direct LED or display connections. An I/O expander or transistor driver may be needed depending on the number of indicators and their drive current.
推薦
Embedded Educational or Prototype Controller
MC9S08QG8MDNE provides a compact platform for learning embedded-system fundamentals, firmware development, background debugging, and low-voltage control. The 20 MHz S08 processor, 8 KB Flash memory, and six I/O ports are sufficient for introductory projects involving digital inputs, timing, simple serial communication, and actuator control. The background debugging system with breakpoint capability can make firmware inspection more accessible. Developers should use the official programming and debug documentation rather than relying on distributor summaries for pinout or tool-specific details.
推薦
推薦產品摘要
工程參考資料，適用於 MC9S08QG8MDNE — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MC9S08QG8CDNE | MC9S08QG4CDNE | MC9S08QG8MFQE |
|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 candidate | SOIC-8 candidate | SOIC-8 candidate |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| CPU Architecture | 8-bit HCS08 S08 | 8-bit S08QG family candidate | 8-bit S08 family candidate | 8-bit 20 MHz NXP MCU |
主要差異化特點
- Confirmed 8-bit S08 positioning (對比Larger 16-bit or 32-bit MCU systems)
- 20 MHz verified clock specification (對比MC9S08QG8MFQE)
- 8 KB Flash memory (對比MC9S08QG4CDNE)
- Low-voltage SOIC-8 integration (對比Larger-pin-count S08 controllers)
設計說明
Design the supply around the verified 1.8 V to 3.6 V operating range, while checking every pin-specific voltage limit in the manufacturer datasheet. Place the required bypass capacitor close to the device power pin and keep the return path short. Estimated: if the MCU rail current is I and the supply is 3.3 V, the regulator must provide I plus transient margin; the exact capacitor value and regulator selection cannot be finalized without the verified current and datasheet requirements.
Use an SOIC-8 land pattern that matches the manufacturer package drawing, verify pin 1 orientation, and preserve clearances for programming or debugging access. Because the verified snippets do not provide the complete pin map, do not finalize routing from distributor summaries alone. Cross-check the final schematic against the exact NXP datasheet, especially reset, ground, supply, and any programming or clock pins.
Do not assume that another S08-family MCU is interchangeable merely because its name is similar. Confirm package dimensions, pin functions, Flash capacity, voltage limits, reset behavior, and programming configuration. The cross-reference search surfaced several S08 variants, but the supplied data does not verify that they are pin-to-pin replacements for MC9S08QG8MDNE; mark any substitution as provisional until the manufacturer comparison is completed.
Keep sensitive clock and programming routes short, provide a continuous ground reference beneath the MCU where the package permits, and place external support components according to the manufacturer’s recommended application circuit. For systems with long cables or noisy actuators, separate switching-current paths from low-level control traces and use protection appropriate to the actual interface. The verified data does not specify internal oscillator or communication-routing details, so those points must be checked in the full datasheet.
合規資訊
RoHS compliance is stated in the verified component data. REACH, AEC-Q100, lead-free status, halogen-free status, and conflict-minerals status are not provided and remain unknown.
