MC908QC16VDSE - 8-Bit 8MHz 16KB Flash MCU | NXP
MPN： MC908QC16VDSE ✗ 停產MC908QC16VDSE 概覽
A microcontroller is a semiconductor device that integrates a processor core, program memory, data memory, I/O ports, and peripheral modules on one integrated circuit. The MC908QC16VDSE belongs to the HC08 microcontroller family, a general-purpose 8-bit platform used for appliance control, security systems, motion control, climate control, lighting, and other embedded applications. Its CISC architecture and peripheral set support compact control firmware without requiring a separate external memory interface.
The verified source data identifies an 8-bit core, 8 MHz maximum clock, 16 KB Flash memory, 16 I/O pins, and 20-pin TSSOP construction. The device also provides SCI and SPI connectivity, LVD, POR, and PWM functions. Because the available information does not specify the complete operating-temperature range, exact RAM organization beyond 512 bytes, electrical limits, or detailed timing values, those details are intentionally not inferred here.
MC908QC16VDSE is positioned for embedded controllers requiring moderate processing performance and flexible serial communication. SCI can support asynchronous serial communication, while SPI is useful for connecting sensors, displays, memory, and other peripherals. The Flash memory provides 16K x 8 program storage, and the reported 512 x 8 RAM capacity supplies working memory for control loops and interface handling.
Typical applications include appliance control, security systems, lighting control, climate-control systems, motion-control boards, and compact industrial or consumer embedded products. Engineers should confirm the exact peripheral mapping, pin multiplexing, electrical limits, and lifecycle requirements against the manufacturer documentation before releasing a production design. The target is also listed as obsolete in one source result, so availability should be confirmed during sourcing.
This page consolidates verified distributor specifications, lifecycle observations, source links, and engineering-use guidance. It does not claim that an unverified substitute is pin-compatible; replacement decisions require comparison of the complete pinout, memory map, peripherals, timing, voltage limits, and package details.
直接替換替代品，適用於 MC908QC16VDSE — 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： MC908QC16VDSE （相同外形與佔位） — 差異在於 Package, Program Memory Size, RAM Size.
此產品無可直接替換的替代品。
申請替代品MC908QC16VDSE 最大額定值與電氣特性
| Product Type | 8-bit microcontroller |
| Processor Core | HC08 |
| Processor Architecture | CISC |
| 最大時脈頻率 | 8 MHz |
| Program Memory Size | 16 KB |
| Program Memory Organization | 16K x 8 |
| Program Memory Type | Flash |
| RAM Size | 512 x 8 bits |
| 供應電壓 | 3.3 V / 5 V |
| Number of I/O | 16 |
| Connectivity | SCI, SPI |
| Peripherals | LVD, POR, PWM |
| 封裝 | 20-pin TSSOP |
| Package Body Width | 0.173 in / 4.40 mm |
| 安裝類型 | Surface mount |
| 生命週期狀態 | Obsolete |
| RoHS | Unknown |
| REACH | Unknown |
| AEC-Q100 Qualification | Unknown |
| Lead-Free Status | Unknown |
MC908QC16VDSE 0.173 in / 4.40 mm 腳位配置指南
MC908QC16VDSE（0.173 in / 4.40 mm 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： MC908QC16VDSE.
請參閱 資料表 以查看完整腳位配置。
典型應用
MC908QC16VDSE 適用於 7 應用s: Appliance Control, Climate Control, Security and Access Systems, Motion and Motor Control, Lighting Control, Industrial Sensor Interface, Home Automation Node.
Appliance Control
The MC908QC16VDSE fits compact appliance controllers that need an 8-bit control loop, 16 KB of Flash firmware storage, and 512 bytes of RAM. Its listed SCI and SPI interfaces can connect to sensors, displays, or external modules, while PWM can support motor, valve, lamp, or fan actuation. The 20-pin TSSOP package helps reduce board area, although the designer must verify the exact I/O count and pin multiplexing before assigning control signals. Because the device is listed as obsolete, production designs should confirm supply continuity and qualify any alternate source carefully.
推薦
Climate Control
For climate-control equipment, MC908QC16VDSE can serve as the supervisory controller for temperature sensing, fan commands, alarms, and user interfaces. The verified 8 MHz maximum clock and 8-bit CISC architecture are appropriate for straightforward control logic, while PWM can command actuator outputs when the selected pin supports that function. SCI or SPI can connect to a sensor module or display, but the source data does not define protocol timing or alternate-function routing. Firmware and board-level validation should therefore include startup sequencing, sensor faults, output limits, and thermal conditions.
推薦
Security and Access Systems
MC908QC16VDSE can be used in simple security or access-control subsystems where a low-cost 8-bit controller manages inputs, indicators, relays, and serial sensors. Its 16 KB Flash provides space for control firmware, and SCI or SPI can connect to external modules. The listed LVD and POR features may support basic robustness checks, but they are not equivalent to cryptographic authentication. Security engineers should separately verify keypad handling, tamper detection, relay isolation, communication security, and any required compliance evidence. Obsolete lifecycle status also requires a controlled sourcing plan.
推薦
Motion and Motor Control
The MC908QC16VDSE is suitable for basic motion-control or actuator-management functions where the system requires an 8-bit embedded controller rather than a high-performance digital motor controller. PWM can represent speed, position, or drive commands, while the reported 16 I/O can support sensors, switches, indicators, and interlock signals. Actual motor-drive feasibility depends on current ratings, switching frequency, isolation, protection, and whether the selected PWM outputs meet those requirements. None of those electrical limits are established by the supplied snippets, so a motor driver or transistor stage must be independently designed and tested.
推薦
Lighting Control
MC908QC16VDSE can be used in a compact lighting controller for dimming, sequencing, status indication, and external sensor coordination. Its PWM capability is relevant to dimming or controlled-drive outputs, while SCI or SPI can connect to a keypad, display, or remote module. The exact PWM channel count, output behavior, and I/O mux are not specified in the available data, so the design must not assume a particular pin assignment. Validate LED-driver topology, current limits, flyback or linear-drive requirements, isolation, and fail-safe states during hardware validation.
推薦
Industrial Sensor Interface
MC908QC16VDSE can act as the control and communication hub for a small sensor interface board when the required interfaces are limited to SPI or SCI. The 8 MHz HC08 core provides the basic execution capability for reading sensors, applying thresholds, filtering data, and reporting status. Its 16 KB Flash and 512 bytes of RAM constrain firmware and buffering, so applications requiring large data logs or complex protocol stacks may need a larger MCU. Use the exact datasheet to verify serial levels, peripheral availability, pin multiplexing, and timing before connecting field sensors.
推薦
Home Automation Node
MC908QC16VDSE is a plausible fit for a compact home-automation node that coordinates switches, relays, sensors, and status indicators. SCI can support a simple serial network or host connection, while PWM and general I/O can drive or monitor peripherals. The device's 16 KB Flash and 512-byte RAM support focused node firmware rather than gateway-level applications. Design validation should cover brownout behavior, communication reliability, relay transients, debounce timing, and firmware update strategy. Since the component is listed as obsolete, an architecture using a currently supported MCU may be preferable for new deployments.
推薦
推薦產品摘要
工程參考資料，適用於 MC908QC16VDSE — 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 |
|---|---|
| Package | 20-pin TSSOP |
| Brand | NXP Semiconductors |
| Processor Core | HC08 |
| Data Width | 8-bit |
| Maximum Clock Frequency | 8 MHz |
| Program Memory | 16 KB Flash |
| RAM | 512 x 8 bits |
| Supply Voltage | 3.3 V / 5 V |
| Connectivity | SCI, SPI |
| Peripherals | LVD, POR, PWM |
| I/O Count | 16 |
| Lifecycle Status | Obsolete |
主要差異化特點
- Integrated serial connectivity in an 8-bit embedded controller (對比MC908QY8CDTE)
- 16 KB Flash memory with 8-bit HC08 processing (對比MC908QC8CDSE)
- Compact 20-pin TSSOP integration (對比MC908QC8CDSE)
設計說明
Use the exact 20-pin TSSOP land pattern from the manufacturer package drawing and preserve the stated 4.40 mm body-width format. Before routing, verify every power, ground, reset, programming, and peripheral pin against the exact datasheet revision; the supplied web snippets do not provide the complete pinout. Keep decoupling capacitors close to the device power pins and provide a clean ground return, while checking that the board assembly process is compatible with 0.65 mm-class TSSOP pitch devices.
The available data confirms a 3.3 V and 5 V supply-voltage designation, but it does not provide operating current, absolute maximum ratings, or power-consumption curves. Confirm those values before selecting regulators, battery capacity, or protection components. If the design powers sensors or actuators from the same rail, include separate bulk and local bypass paths and validate startup current, brownout behavior, and voltage transients with the final load configuration.
Do not treat a related HC08 or 8-bit MCU as a drop-in replacement merely because it has a similar Flash size or package family. Compare the exact pin assignments, alternate functions, SCI and SPI implementation, PWM resources, reset behavior, programming interface, voltage thresholds, and memory map. The supplied cross-reference results do not establish compatibility for MC908QY8CDTE or MC908QC8CDSE, so any substitution requires manufacturer documentation and board-level validation.
合規資訊
The supplied verified results do not provide reliable compliance declarations for this exact MPN. One search result displays an unpopulated RoHS field, so no compliance status is inferred.
