MC908QF4CFJ - 8-Bit 2MHz 4KB Flash MCU | NXP | LQFP-32
MPN: MC908QF4CFJ ✓ Hoạt độngMC908QF4CFJ Tóm tắt
What is an 8-bit microcontroller? An 8-bit microcontroller is a compact embedded-controller IC whose central processing unit operates on 8-bit data words. A microcontroller integrates a CPU, program memory, data memory, and peripheral interfaces into one package. In the broader electronics hierarchy, it belongs to the embedded-processing category, the microcontroller family, and ultimately the semiconductor-device ecosystem. The HC08 architecture is intended for cost-sensitive embedded control, product-control, and small-system applications.
The MC908QF4CFJ’s principal verified specifications are its 8-bit CPU, 2 MHz clock, 4 KB Flash program memory, and 32-LQFP package. Its 4 KB Flash capacity is suitable for compact firmware that does not require a large application image. The 32-LQFP package provides a surface-mount footprint for PCB assembly, while the 7 x 7 mm package dimensions support space-conscious control boards. Additional electrical, timing, peripheral, environmental, and lifecycle values were not included in the supplied verified data and are marked where applicable.
Typical embedded applications include appliance controllers, simple keypad panels, sensor-conditioning hubs, motor-control sequencers, and compact industrial interfaces. In these systems, the Flash memory stores control firmware while the microcontroller coordinates inputs and outputs. The 2 MHz operating frequency is appropriate for supervisory and deterministic control tasks, although final suitability depends on the required processing load, timing budget, and peripheral requirements.
Designers should verify the complete manufacturer datasheet before assigning I/O, programming connectors, clock circuitry, decoupling, and package-specific land patterns. Because the supplied data does not expose a verified pin table or detailed electrical limits, those details should not be inferred. The supplied evidence supports sourcing and family identification, but it does not substitute for application-specific engineering validation.
Bộ thay thế dễ dàng lắp đặt cho MC908QF4CFJ — 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 MC908QF4CFJ (cùng hình factor và footprint) — khác nhau ở Package, Supply Voltage.
MC68HC908GR4CFAE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08DZ16AMLC
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC908QF4CFJ Tỷ lệ tối đa & tính chất điện
| Manufacturer | NXP Semiconductors |
| Product Type | 8-bit microcontroller |
| Microcontroller Family | HC08 |
| Architecture | HC08 CISC |
| CPU Word Size | 8 bit |
| Operating Frequency | 2 MHz |
| Flash Memory | 4 KB (4K x 8) |
| Điện áp cung cấp | 2.5 V/3.3 V |
| Hộp | 32-LQFP (7 x 7 mm) |
| Package Type | LQFP-32 |
| Kiểu lắp đặt | Surface Mount |
| Manufacturer Description | HC08 Microcontroller IC 8-Bit 2MHz 4KB Flash |
| Datasheet Family | M68HC08 Microcontrollers |
| Observed Inventory | 7,024 pieces |
| Observed Unit Price | $3.7477 |
| Lead Time | Can Ship Immediately |
| Estimated Delivery Time | Oct 20 - Oct 25 |
Hướng dẫn cấu hình chân MC908QF4CFJ lqfp-32
Cấu hình chân cho MC908QF4CFJ (lqfp-32 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 MC908QF4CFJ.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MC908QF4CFJ phù hợp cho 6 Áp dụngs: Appliance Control Panel, Simple Sensor Conditioning Hub, Basic Motor Sequencing Controller, Industrial Interface Module, Keypad and Access Controller, Compact Consumer Device Controller.
Appliance Control Panel
The MC908QF4CFJ can serve as the control processor in a compact appliance panel when the required firmware fits within its verified 4 KB Flash memory and the application remains within the 2 MHz HC08 processing envelope. The 32-LQFP 7 x 7 mm package is convenient for a dedicated controller PCB with external display, switch, and sensor inputs. A designer should use the device for sequencing, button-state interpretation, and actuator-control functions, while checking the exact I/O pinout and electrical limits in the manufacturer datasheet. The main benefit is integration: program memory and the control core share one compact surface-mount device. The limitation is that the supplied data does not confirm RAM size, available I/O count, or peripheral resources, so complex human-interface designs may exceed the part’s capability.
Được đề xuất
Simple Sensor Conditioning Hub
The MC908QF4CFJ is a reasonable candidate for a small sensor-conditioning hub that gathers discrete inputs, applies basic control logic, and forwards status information. Its 8-bit HC08 core and 2 MHz operating frequency are suited to low-bandwidth supervisory tasks rather than demanding signal processing. The verified 4 KB Flash capacity can hold a compact firmware image, while the 32-LQFP package supports a conventional surface-mount layout. External analog front-end components would still be needed because the supplied data does not identify integrated converter specifications. Verify available digital and analog I/O, input thresholds, timer resources, and communication interfaces before selecting the MCU. Firmware should be organized so sensor sampling, filtering, fault handling, and status reporting fit within the verified memory constraints.
Được đề xuất
Basic Motor Sequencing Controller
MC908QF4CFJ can be evaluated for a basic motor-sequencing controller where the system requires deterministic start, stop, direction, and timing functions. The 2 MHz HC08 core provides a clock source for supervisory sequencing, while the 32-LQFP package leaves the system in a compact surface-mount format. The design would likely use external drivers for motors because the supplied verified data does not confirm internal H-bridge, gate-driver, or high-current output specifications. Validate timer resources, output polarity, fault handling, and timing margins against the exact datasheet. The 4 KB Flash limit favors focused control firmware rather than extensive motion algorithms. Any production design should also include independent overcurrent protection and thermal planning because motor transients and inductive energy are outside the parameters provided here.
Được đề xuất
Industrial Interface Module
The MC908QF4CFJ may fit a small industrial interface module that translates a limited number of digital inputs and outputs into a controlled system response. Its 8-bit architecture, 4 KB Flash, and 2 MHz clock align with supervisory interface tasks, while the 32-LQFP package is suitable for automated PCB assembly. The interface module should not assume that the MCU includes communications, isolation, or protection that is not shown in the verified data. External transceivers, isolation, surge protection, and connector circuitry may be required. Review the manufacturer documentation for pin multiplexing, voltage levels, input thresholds, and timing. The main design benefit is a low-complexity control core in a compact package; the main constraint is that the available memory and peripheral information must be verified before committing to a production design.
Được đề xuất
Keypad and Access Controller
The MC908QF4CFJ can be considered for a keypad or access-control product when the controller only needs to scan a small input matrix, maintain simple state logic, and activate a simple output. The verified 4 KB Flash provides a defined program-memory ceiling, so the firmware should remain compact and avoid unnecessary library overhead. Its 32-LQFP package can reduce board area while retaining a conventional fine-pitch surface-mount assembly process. Before committing, verify the exact pin multiplexing, debounce timing, relay or lock-driver interface, reset behavior, and security requirements. The supplied data does not confirm cryptography, EEPROM, or communication capabilities, so an access-control design may need external components. Validate worst-case timing and fail-safe behavior on the final hardware rather than relying only on nominal clock specifications.
Được đề xuất
Compact Consumer Device Controller
The MC908QF4CFJ can be used for a compact consumer-device controller that performs local supervision instead of running a high-bandwidth user interface. Its 2 MHz 8-bit core is aligned with configuration handling, button logic, status indication, and simple actuator control. The verified 32-LQFP package supports a small controller board, and the 4 KB Flash capacity provides a clear boundary for firmware planning. A production design must verify low-power behavior, supply voltage tolerance, I/O drive, and peripheral availability because these values are absent from the supplied search results. External memory, communications, or richer human-interface functions may exceed the device’s verified resources. Use the part where deterministic simple control is more valuable than processing throughput, and test startup, reset, and brownout behavior across the complete supply range.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC908QF4CFJ — 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 | MC68HC908GR4CFAE | MC9S08DZ16AMLC |
|---|---|---|---|
| Package | 32-LQFP (7 x 7 mm) | 32-LQFP; exact package details not supplied | 32-LQFP; exact package details not supplied |
| Brand | NXP Semiconductors | Freescale Semiconductor | NXP Semiconductors |
| CPU Type | 8-bit HC08 CISC | HC08-family comparison candidate; CPU details not supplied | Comparison candidate; CPU details not supplied |
| Drop-In Compatibility | Reference device | Not verified beyond comparison result | Not verified beyond comparison result |
Bảo phân biệt quan trọng
- Verified compact control-core configuration (vsMC68HC908GR4CFAE)
- Documented 2.5 V/3.3 V family positioning (vsMC9S08DZ16AMLC)
- Verified 32-LQFP 7 x 7 mm package identity (vsMC9S08DZ16AMLC)
Ghi chú thiết kế
Do not treat the MC908QF4CFJ as interchangeable with another HC08 or S08 device solely because the descriptions are similar. Confirm the exact 32-LQFP pinout, supply limits, Flash organization, reset pins, oscillator requirements, and peripheral mapping from the manufacturer datasheet. The verified search data establishes identity and headline specifications, but it does not provide enough information to approve a drop-in replacement or release a PCB layout.
Design the PCB around the exact 32-LQFP land pattern specified by the manufacturer. Place required decoupling close to the device power pins once those pins and voltage requirements are verified. Preserve programming access and oscillator-routing options, and keep high-current or noisy external circuitry away from sensitive signal paths. Because the supplied data does not identify the pinout or exposed thermal pad, the footprint must be checked against the official package drawing.
The supplied result identifies 2.5 V/3.3 V operation, but it does not provide the complete voltage range, current limits, or pin-level requirements. Before power-up, verify absolute maximum ratings, supply current, I/O voltage limits, startup behavior, and decoupling requirements in the manufacturer documentation. The 4 KB Flash capacity should also be checked against the programmed image size, including boot code and configuration data.
Inventory and price information is time-sensitive. The supplied Heisener result reports $3.7477 per unit and 7,024 pieces in stock, while the supplied search context is dated 2026-10-21. Confirm the live distributor quote, exact MPN suffix, condition, and authorized-channel status before using that commercial data for a production BOM or cost forecast.
Thông tin tuân thủ
The supplied verified web data does not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. Obtain the current manufacturer product documentation before making a compliance claim.