MCHC908QT2CDWE - 8-Bit 8 MHz 1.5 KB MCU with ADC | NXP
MPN： MCHC908QT2CDWE ✗ 停產MCHC908QT2CDWE 概覽
A microcontroller is a programmable semiconductor that combines a CPU, memory, and peripherals on one integrated circuit. This device belongs to the M68HC08 family and uses the enhanced M68HC08 CPU with Complex Instruction Set Computer, or CISC, architecture. The family uses a Von Neumann architecture, which provides a compact control platform for simple sequencing, sensing, communication, and actuator-control tasks.
The headline resources are an 8 MHz clock, 1.5 KB of Flash program memory, and integrated analog-to-digital conversion. The verified distributor records identify the device as an HC08-family MCU with 1.5K Flash and ADC support. Its 3.3 V or 5 V operating capability allows design flexibility across low-voltage and conventional 5 V embedded systems, although the complete electrical limits and temperature ratings must be confirmed from the manufacturer datasheet before design release.
The MCHC908QT2CDWE is intended for small embedded systems where an 8-bit CPU is sufficient and board area is constrained. Its limited Flash capacity makes software organization important: interrupt vectors, startup code, application logic, and any serial routines must be accounted for during firmware planning. The ADC makes the device useful for reading resistive or analog sensors, while the small package supports compact control boards and cost-focused products.
Typical uses include simple sensor interfaces, low-cost control panels, LED status controllers, household-appliance controls, and small embedded products with modest processing requirements. The 8 MHz clock is appropriate for polling-based control loops rather than demanding real-time signal processing. Engineers should verify ADC timing, available I/O, memory organization, clock options, and peripheral behavior against the official datasheet.
For PCB design, preserve the manufacturer's recommended decoupling and exposed-pin requirements for the 8-pin SOIC package, and confirm the exact pin names before routing. Because the part is marked End of Life, procurement planning is as important as electrical design: evaluate current distributor inventory, original-manufacturer channels, and a qualified replacement before a new production release.
This page consolidates the verified NXP and distributor information, including lifecycle status, package information, supply options, and source links. It also highlights where detailed electrical, thermal, pin-level, and pricing data require confirmation rather than inference.
直接替換替代品，適用於 MCHC908QT2CDWE — 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： MCHC908QT2CDWE （相同外形與佔位） — 差異在於 Package, ADC, Program Memory Size, RAM Size, Core Architecture.
MCHC908QT1CDWE
✅ 直接替換📋 參考替代品（不在目錄中）
MC908QT1ACDWE
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S08QD2VSC
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MC9S08SH4CTJ
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MC9S08PA8VLC
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MCHC908QT2CDWE 最大額定值與電氣特性
| Product Type | 8-bit microcontroller unit (MCU) |
| Processor Family | M68HC08 / HC08 |
| CPU Architecture | CISC |
| System Architecture | Von Neumann |
| CPU | Enhanced M68HC08 central processor unit |
| Clock Frequency | 8 MHz |
| Flash Memory | 1.5 KB (1.5K x 8) |
| ADC | Integrated ADC |
| 供應電壓 | 3.3 V / 5 V |
| 封裝 | 8-pin SOIC EIAJ |
| 安裝類型 | Surface mount |
| Tube Packaging | Tube |
| 生命週期狀態 | End of Life |
| RoHS 狀態 | EU RoHS Compliant |
MCHC908QT2CDWE 8-pin soic eiaj 腳位配置指南
MCHC908QT2CDWE（8-pin soic eiaj 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： MCHC908QT2CDWE.
請參閱 資料表 以查看完整腳位配置。
典型應用
MCHC908QT2CDWE 適用於 6 應用s: Low-Cost Sensor Interface, Appliance Control Panel, LED Status Controller, Household Device Controller, Battery-Powered Embedded Module, Legacy HC08 Product Maintenance.
Low-Cost Sensor Interface
The MCHC908QT2CDWE fits a compact sensor interface when the application needs local analog measurement and simple control rather than high processing bandwidth. Its verified 8-bit HC08 CPU, integrated ADC, 3.3 V / 5 V operation, and 8 MHz clock can support periodic readings, threshold decisions, and actuator updates. The small SOIC EIAJ package helps minimize board area in an embedded sensor node. Because ADC resolution, input range, and sampling timing are not provided in the verified data, the design must confirm those limits from the official datasheet before selecting divider values or filter components.
推薦
Appliance Control Panel
The MCHC908QT2CDWE can be used in a basic appliance-control panel where a limited state machine drives relays, indicators, or a small display. Its 8 MHz HC08 processor and 1.5 KB Flash provide a compact control platform, while the 8-pin package leaves a small physical footprint. A legacy product with existing HC08 firmware may gain the most value from retaining the architecture. The verified data does not specify relay-driving current, debounce resources, or display interfaces, so those functions require pin-level and timing verification in the manufacturer documentation.
推薦
LED Status Controller
The MCHC908QT2CDWE is appropriate for a simple LED status controller where firmware sequences indicators, tracks operating modes, or responds to ADC-derived conditions. The 8-bit CPU is sufficient for basic state management, and the 1.5 KB Flash capacity favors concise control code. Its 8-pin SOIC EIAJ package supports compact boards, but LED current, port drive limits, and timing resources are not included in the verified specifications. Confirm the I/O ratings and multiplexing requirements from the official datasheet before driving LEDs directly or adding external transistors.
推薦
Household Device Controller
The MCHC908QT2CDWE can support a low-cost household-device controller when the required functions are sequential rather than computationally intensive. Its verified 3.3 V / 5 V supply support can simplify adaptation to existing power rails, and the 8 MHz HC08 core can execute deterministic control routines. The limited 1.5 KB Flash requires disciplined startup and application-code organization. Verify watchdog, interrupt, port, and memory behavior in the manufacturer datasheet, especially for motors, heaters, or mains-connected equipment requiring additional safety isolation.
推薦
Battery-Powered Embedded Module
The MCHC908QT2CDWE may suit a compact battery-powered embedded module when low-cost local control and analog sensing are more important than processing performance. The verified 1.5 KB Flash footprint supports a small firmware image, while the 8-pin package helps minimize board size. Battery life cannot be estimated from the supplied data because sleep modes, active current, ADC behavior, and clock-startup requirements are not stated. Review the manufacturer datasheet for low-power modes and measure the complete firmware duty cycle in the intended system.
推薦
Legacy HC08 Product Maintenance
The MCHC908QT2CDWE is most relevant for maintaining an existing M68HC08 product where software, board layout, and qualification work are already complete. Reusing the existing MCU can avoid redesign and toolchain migration, particularly for an industrial or appliance platform with stable production. The trade-off is procurement risk: NXP identifies the part as End of Life, and the verified records do not establish guaranteed supply or a formal transition plan. Use the device only after confirming inventory, authenticity, and a controlled end-of-life procurement strategy.
推薦
推薦產品摘要
工程參考資料，適用於 MCHC908QT2CDWE — 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 | MCHC908QT1CDWE | MC908QT1ACDWE | MC9S08QD2VSC | MC9S08SH4CTJ | MC9S08PA8VLC |
|---|---|---|---|---|---|---|
| Package | 8-pin SOIC EIAJ | 8-pin SOIC EIAJ | 8-pin SOIC EIAJ | 8-pin SOIC EIAJ | 8-pin SOIC EIAJ | 8-pin SOIC EIAJ |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
主要差異化特點
- Existing HC08 architecture and 8 MHz processing (對比MCHC908QT1CDWE)
- Integrated ADC for compact analog-control designs (對比MC908QT1ACDWE)
- Documented End of Life procurement visibility (對比MC9S08QD2VSC)
- Compact 8-pin SOIC EIAJ footprint (對比MC9S08PA8VLC)
設計說明
Do not treat the MCHC908QT2CDWE as a current general-purpose MCU without addressing its End of Life status. The verified NXP result explicitly marks the part End of Life. Before releasing a new PCB, obtain a supplier confirmation, check authorized-channel traceability, and decide whether the existing HC08 firmware and footprint justify the procurement risk. The supplied data does not provide a formal migration or last-time-buy schedule.
Use the manufacturer package drawing for the 8-pin SOIC EIAJ footprint rather than relying only on the generic package name. Place input and output decoupling close to the associated pins, keep analog ADC routing away from switching nodes where possible, and preserve a clean return path. Exact pin names, pin roles, and recommended capacitor values are not present in the verified data, so schematic and layout sign-off must use the official datasheet.
The verified operating-supply class is 3.3 V / 5 V, but absolute maximum limits, current consumption, and power behavior are not supplied. Check the input rail tolerance and I/O limits against the complete manufacturer datasheet before connecting sensors or external actuators. Estimated: if the MCU rail is 5 V and the measured operating current is I, the device power is approximately 5 × I watts; actual thermal design must use measured or datasheet current rather than an assumed value.
The 1.5 KB Flash capacity is a major firmware constraint. Account for startup code, interrupt vectors, library routines, application logic, and calibration data before selecting this MCU for a new product. If the application grows, a supported MCU with more memory and a defined development path may be less risky than relying on an End of Life HC08 device. Memory-map and linker details should be taken from the official datasheet and toolchain documentation.
合規資訊
The verified Arrow distributor result states EU RoHS Compliant. No supplied source confirms REACH, AEC-Q100 qualification, lead-free status, halogen-free status, or conflict-minerals compliance.
