MC9S08QB8CGK - 8-bit 20MHz S08 MCU 8KB Flash | NXP
MPN: MC9S08QB8CGK ✓ Hoạt độngMC9S08QB8CGK Tóm tắt
A microcontroller is a semiconductor device that integrates a processor core, program memory, data memory, and peripherals such as timers, serial interfaces, and analog or digital I/O. The MC9S08QB8 belongs to the NXP S08 family, using the HC08 instruction set with added BGND and other S08 features. The S08 architecture is positioned between simple 4-bit controllers and more complex 32-bit processors for compact embedded control systems.
The main identifiable specifications of the MC9S08QB8CGK are its 8-bit S08 CPU, 20MHz maximum operating frequency, 8KB flash memory, and 24-HVQFN package. The available component listings also identify operation from 2.5V or 3.3V supply configurations. This combination makes the device suitable for motor control, appliance control, keypad interfaces, lighting systems, and compact industrial controllers where a small pin count and embedded flash are valuable.
The device architecture places the CPU, flash program memory, data RAM, clock, reset, and communication peripherals in one package. Its 8-bit instruction set supports embedded control workloads without requiring a separate external memory interface for firmware storage. The 20MHz clock capability provides additional timing margin for interrupt handling, periodic scanning, communications, and peripheral control, although actual firmware performance depends on the selected bus clock, peripherals, and application code.
Typical designs use the MC9S08QB8CGK as the central controller in small appliance controllers, motor or fan controls, sensor interfaces, LED lighting equipment, security panels, and low-cost industrial automation modules. The 24-HVQFN 5x5 mm package helps reduce board area, while embedded flash supports standalone firmware deployment. Designers should account for the exposed thermal-pad requirements and verify the exact pin assignment and pin functions against the NXP datasheet before layout.
The primary design consideration is ensuring that the power supply, decoupling, clock configuration, programming interface, and exposed-pad layout follow the NXP reference design. Place the required supply capacitors directly at the appropriate power pins, provide a clean ground path, and connect the exposed pad using the recommended thermal and layout pattern. Confirm programming, reset, and debug connectivity before releasing a PCB for fabrication.
This product page combines the manufacturer-associated device identity, distributor technical summaries, package details, practical application guidance, and same-family replacement analysis. It also highlights where engineers must verify detailed electrical limits, memory maps, peripheral behavior, and pin assignments directly in the NXP datasheet before final design approval.
Bộ thay thế dễ dàng lắp đặt cho MC9S08QB8CGK — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MC9S08QB8CGK (cùng hình factor và footprint) — khác nhau ở Instruction Set, Package, Product Type.
MC9S08QB4CGK
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08QB7CGK
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08QB9CGK
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08QB8CGK Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit microcontroller |
| Architecture | HCS08 CPU with S08 core |
| Maximum CPU Frequency | 20 MHz |
| Flash Memory | 8 KB |
| Program Memory Organization | 8K x 8 bits |
| Supply Configuration | 2.5 V or 3.3 V |
| Hộp | 24-HVQFN (5x5 mm) |
| Package Pin Count | 24 pins |
| Kiểu lắp đặt | Surface mount |
| Instruction Set | HC08 instruction set with added BGND |
Hướng dẫn cấu hình chân MC9S08QB8CGK 24 pins
Cấu hình chân cho MC9S08QB8CGK (24 pins gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho MC9S08QB8CGK.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MC9S08QB8CGK phù hợp cho 6 Áp dụngs: Compact Appliance Controllers, Small Motor and Fan Control, LED Lighting and Display Control, Battery-Powered Sensor Nodes, Security and Access-Control Panels, Industrial Control and Data Acquisition.
Compact Appliance Controllers
The MC9S08QB8CGK fits compact appliance controllers because it combines an 8-bit S08 processor, 8KB flash, and a 20MHz clock in a 24-HVQFN 5x5 mm package. It can execute control logic for buttons, indicators, sensors, relays, and communication tasks while retaining integrated firmware storage. The small package helps reduce board area in countertop appliances, personal-care equipment, and household products. Before layout, verify the exact I/O mapping, timer resources, reset behavior, and exposed-pad requirements in the NXP datasheet. Firmware capacity should also be checked against the final code size rather than relying only on the nominal 8KB flash specification.
Được đề xuất
Small Motor and Fan Control
The MC9S08QB8CGK is suitable for small motor, fan, and pump control systems where a deterministic 8-bit control loop and compact 24-HVQFN footprint are useful. Its 20MHz operating capability provides timing margin for pulse-width modulation, sensor sampling, fault handling, and status reporting, while 8KB flash supports an embedded control program. The device must be paired with suitable driver transistors, protection networks, and power circuitry. Validate available timer channels, pin multiplexing, pulse-width modulation functions, thermal limits, and start-up behavior in the NXP datasheet before assigning the MCU to a specific motor topology.
Được đề xuất
LED Lighting and Display Control
The MC9S08QB8CGK can control LED lighting, status indicators, and compact display sequences in consumer or industrial products. The 8-bit S08 core is suited to timed updates, button-driven menus, dimming sequences, and communication with remote controls, while the 20MHz clock allows regular peripheral servicing. The 24-HVQFN 5x5 mm package reduces board footprint in space-constrained fixtures. Designers should confirm whether the application requires PWM outputs, special timer channels, logic levels, or a driver interface, then review the exact QFN pin assignment and exposed-pad layout before fabrication.
Được đề xuất
Battery-Powered Sensor Nodes
The MC9S08QB8CGK can serve as the controller in a small battery-powered sensor node when the application fits 8KB flash and the S08 peripheral set. Integrated program memory eliminates an external firmware-memory component, and the compact 24-HVQFN package supports small PCB footprints. The device can periodically wake, read sensors, update indicators, and transmit results while operating most of the time in a low-power state. Actual battery-life calculations require the datasheet’s active, sleep, and wake-up current values, along with the external sensor and radio load. Confirm low-power modes, wake-up sources, and retained-memory behavior before committing to the architecture.
Được đề xuất
Security and Access-Control Panels
The MC9S08QB8CGK is appropriate for compact keypad, alarm, and access-control modules that require local logic, event handling, and serial communication. The 8-bit CPU and 20MHz clock support keypad scanning, status LED updates, relay control, and periodic communication, while 8KB flash can hold firmware for a focused embedded application. The small package also allows the controller to fit behind a compact panel. Engineers should review the complete security peripheral set, communication interfaces, pin count, watchdog or reset behavior, and operating-temperature requirements in the NXP datasheet. Any externally accessible interface must also receive the appropriate hardware and software protection.
Được đề xuất
Industrial Control and Data Acquisition
The MC9S08QB8CGK can form the control core of a small industrial acquisition or automation module when the design fits its 8KB flash and available peripherals. A 20MHz 8-bit processor can handle digital sensor input, timing sequences, status reporting, and local actuator commands, while the 24-HVQFN package helps minimize board size. The exact suitability depends on the required ADC resolution, serial interfaces, timers, isolation, and environmental limits, which must be checked against the NXP documentation. Provide robust decoupling, clean grounding, protection for external wiring, and an exposed-pad land pattern that follows the manufacturer layout guidance.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S08QB8CGK — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MC9S08QB4CGK | MC9S08QB7CGK | MC9S08QB9CGK |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 24-HVQFN (5x5 mm) | 24-HVQFN (5x5 mm) | 24-HVQFN (5x5 mm) | 24-HVQFN (5x5 mm) |
| Product Type | 8-bit microcontroller | 8-bit microcontroller | 8-bit microcontroller | 8-bit microcontroller |
| CPU Architecture | S08 core with HC08 instruction set | S08QB family | S08QB family | S08QB family |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Pin Count | 24 pins | 24 pins | 24 pins | 24 pins |
Bảo phân biệt quan trọng
- Balanced program-memory capacity within the S08QB family (vsMC9S08QB4CGK)
- Lower flash capacity than the larger same-family option (vsMC9S08QB9CGK)
- Compact integrated implementation (vsMC9S08QB7CGK)
Ghi chú thiết kế
Treat the 24-HVQFN footprint as a manufacturer-controlled land pattern. Use the NXP package drawing for pad dimensions, pitch, solder-mask clearance, and the exposed-pad connection. Place the required bypass capacitors close to their associated supply pins and provide a low-impedance ground plane. The exposed thermal pad should use the recommended copper area and via arrangement so heat can leave the device without creating unwanted signal paths.
Select the board supply from the MC9S08QB8CGK’s supported 2.5V or 3.3V configuration after checking the complete operating limits and external-circuit requirements. Decouple each supply group at the device pins rather than relying on distant bulk capacitance. Validate startup, brownout, reset, and maximum input conditions against the NXP datasheet before adding external power circuitry.
Do not assume that every S08QB-family MPN is automatically interchangeable. Compare flash, RAM, timer channels, serial interfaces, analog functions, pin multiplexing, reset behavior, and exposed-pad requirements between the original and replacement datasheets. After substitution, rebuild or retest firmware, verify the complete vector and memory maps, and exercise every peripheral used by the production design.
Separate sensitive clock or communication routes from fast switching nodes and noisy external drivers. Keep oscillator and timing-component connections short, maintain a continuous return path beneath signal routes where appropriate, and route exposed-pad vias away from sensitive pins. Because the package is only 5x5 mm, use careful assembly planning to avoid solder bridging between the closely spaced QFN leads.
Thông tin tuân thủ
Compliance declarations were not identified in the available component information and require confirmation from NXP or the relevant material documentation.
