MC908QT2ACDWER - 8-Bit 8MHz MCU, 1.5KB Flash | NXP
MPN： MC908QT2ACDWER ✗ 停產MC908QT2ACDWER 概覽
A microcontroller is a programmable semiconductor that combines a CPU core, memory, I/O, and embedded control peripherals on one integrated circuit. The HC08 family belongs to the broader 8-bit microcontroller hierarchy, combining straightforward instruction execution with resources suited to appliance controls, industrial modules, and automotive or industrial interface logic.
The MC908QT2ACDWER provides 1.5K x 8 flash program memory, 128 x 8 RAM, five I/O pins, and an 8MHz clock rating according to the verified distributor and NXP product information. Its low-voltage operation and integrated control-focused design make it appropriate for designs that do not require the memory, processing capacity, or pin count of a 32-bit microcontroller.
The device is identified as an 8-SOIC part with a 0.209-inch, 5.30mm-width package in the verified specifications. Its HC08 8-bit CISC architecture and compact package make it a practical choice for space-constrained embedded products where low cost, deterministic control, and a small pin count are more important than high compute throughput.
Typical applications include simple industrial controllers, keypad or switch interfaces, sensor-conditioning systems, automotive and industrial auxiliary controls, and compact consumer products. The NXP product description specifically associates the related MC908QT2ACDWE family with low-voltage operation, an integrated keyboard scanner, and high-current drivers for automotive and industrial applications.
Designers should verify the exact pin functions, voltage limits, clock configuration, programming method, and peripheral details against the manufacturer datasheet before layout release. Because the verified source data does not provide complete electrical timing, pin-level, programming-tool, or package drawings, those details remain important qualification items rather than assumptions.
This page consolidates verified distributor specifications, the manufacturer product reference, pricing availability, and selection guidance for engineers evaluating the MC908QT2ACDWER.
直接替換替代品，適用於 MC908QT2ACDWER — 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： MC908QT2ACDWER （相同外形與佔位） — 差異在於 Package, Program Memory Size, RAM Size, Architecture, Packaging.
MC908QT2ACDWE
✅ 直接替換📋 參考替代品（不在目錄中）
MCHC908QT2CDWE
✅ 直接替換聯絡詢價
查看資料表 →MC908QB4CDWE
✅ 直接替換聯絡詢價
查看資料表 →MC908JL3ECDWE
✅ 直接替換聯絡詢價
查看資料表 →MC908JL8CDWER
✅ 直接替換聯絡詢價
查看資料表 →MC908KX2CDWER
✅ 直接替換聯絡詢價
查看資料表 →MC908QT2ACDWER 最大額定值與電氣特性
| Product Type | 8-bit microcontroller |
| Core | HC08 |
| Instruction Set | CISC |
| 最大時脈頻率 | 8 MHz |
| Program Memory Size | 1.5KB (1.5K x 8) |
| Program Memory Type | Flash |
| RAM Size | 128 x 8 bits |
| Number of I/O Pins | 5 |
| 供應電壓 | 3.3V/5V |
| 封裝 | 8-SOIC |
| Package Width | 0.209 inch (5.30 mm) |
| 安裝類型 | Surface Mount |
| Packaging | T/R |
| Key Feature | Integrated keyboard scanner |
| Key Feature | High-current drivers |
| Application Domain | Automotive and industrial applications |
MC908QT2ACDWER 0.209 inch (5.30 mm) 腳位配置指南
MC908QT2ACDWER（0.209 inch (5.30 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： MC908QT2ACDWER.
請參閱 資料表 以查看完整腳位配置。
典型應用
MC908QT2ACDWER 適用於 7 應用s: Compact Automotive Auxiliary Controller, Industrial Keyboard Scanner Interface, Simple Sensor Conditioning Module, Low-Voltage Appliance Control, Switch and Relay Control Board, Compact Consumer Appliance Interface, Industrial Discrete Logic Controller.
Compact Automotive Auxiliary Controller
The NXP MC908QT2ACDWER fits compact automotive auxiliary-control designs that need a small 8-bit controller rather than a high-performance processor. Its verified HC08 core, 8MHz maximum clock, 1.5KB flash, 128-byte RAM, and five I/O pins provide a simple control platform for discrete logic, status indicators, or limited sensor handling. The NXP product description identifies automotive applications and high-current drivers, while the MC908 family also references an integrated keyboard scanner. The main design consideration is that the verified data does not provide the complete automotive temperature range, transient limits, or AEC-Q100 qualification; those requirements must be confirmed from the exact NXP documentation before production release.
推薦
Industrial Keyboard Scanner Interface
The MC908QT2ACDWER is suitable for a compact keyboard or switch-scanning interface when the system only needs basic input handling and a modest amount of firmware. The verified NXP description identifies an integrated keyboard scanner for the related MC908QT2ACDWE family, while the device provides five I/O pins and 1.5KB of flash. A scanner can be implemented with periodic polling, debouncing, and state-machine logic within the small memory footprint. Before layout and firmware deployment, verify the exact scanner pins, debounce requirements, electrical levels, and whether the target package exposes all required signals in the manufacturer datasheet.
推薦
Simple Sensor Conditioning Module
The MC908QT2ACDWER can serve as the control element in a small sensor-conditioning module where inputs must be sampled, thresholded, filtered, or translated into a simple digital status. Its five I/O pins provide a limited but potentially sufficient interface for a compact sensor front end, and its 8MHz HC08 core supports deterministic low-complexity control. The 1.5KB flash and 128-byte RAM require careful firmware sizing, especially when adding calibration tables or communications. Exact analog interfaces, ADC resources, pin multiplexing, and timing limits are not present in the supplied data and must be checked against the manufacturer datasheet.
推薦
Low-Voltage Appliance Control
The MC908QT2ACDWER is appropriate for a small appliance or embedded-control product that operates from a 3.3V or 5V rail and requires basic sequencing, switching, or user-interface logic. The verified supply-voltage specification supports both 3.3V and 5V operation, while the 8-pin SOIC package helps keep the footprint compact. The HC08 8-bit CISC architecture is straightforward for routines such as debouncing, state management, actuator timing, and fault indication. Designers should verify current consumption, oscillator requirements, reset behavior, and maximum pin loading because those values are not included in the supplied source excerpts.
推薦
Switch and Relay Control Board
The MC908QT2ACDWER can be used in a small switch or relay-control board where a microcontroller must coordinate inputs and output states. The verified NXP description references high-current drivers, making the family relevant to applications that interface with controlled loads rather than directly driving every high-current path from ordinary logic pins. External transistors, protection, and layout isolation remain necessary when switching inductive or high-energy loads. The target's five I/O pins and 8-SOIC package support a constrained board layout, but exact driver ratings, pin limits, and automotive or industrial qualifications require review of the manufacturer documentation.
推薦
Compact Consumer Appliance Interface
The MC908QT2ACDWER is suitable for compact consumer-appliance interfaces where a small controller handles buttons, indicators, timers, or a limited keypad matrix. Its 8-bit HC08 core, 1.5KB flash, and 128-byte RAM match simple control functions without the cost and complexity of a larger MCU. The 8-SOIC package also permits reuse of established small-footprint PCB layouts. Firmware planning should reserve memory for debounce logic and nonvolatile settings, while the hardware design should confirm supply tolerance, I/O levels, reset timing, and package pin assignments from the exact NXP datasheet.
推薦
Industrial Discrete Logic Controller
The MC908QT2ACDWER can serve as a compact industrial discrete-logic controller for status monitoring, sequencing, and simple machine-interface functions. The verified 8MHz HC08 performance is sufficient for deterministic control loops, while the five available I/O pins can be allocated among inputs, indicators, and controlled outputs in a small system. Compared with a larger MCU, the target offers a lower-complexity solution when networking, large memory buffers, and high-speed processing are unnecessary. Production designs must confirm operating-temperature limits, electrical noise immunity, ESD requirements, and any industrial qualification because these details are absent from the supplied excerpts.
推薦
推薦產品摘要
工程參考資料，適用於 MC908QT2ACDWER — 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 | MC908QT2ACDWE | MCHC908QT2CDWE | MC908QB4CDWE | MC908JL3ECDWE | MC908JL8CDWER | MC908KX2CDWER |
|---|---|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC related ordering designation | 8-SOIC related family | 8-SOIC related HC08 family | 8-SOIC related HC08 family | 8-SOIC related family | 8-SOIC related family |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HC08 8-bit CISC | HC08 family | HC08 family | HC08 family | HC08 family | HC08 family | HC08 family |
主要差異化特點
- Compact 8-SOIC footprint with five I/O pins (對比MC908KX2CDWER)
- 1.5KB flash and 128-byte RAM (對比MC908QB4CDWE)
- 8MHz HC08 control performance (對比MC908JL3ECDWE)
設計說明
The verified data specifies 3.3V/5V operation but does not include the device's absolute maximum voltage, quiescent current, or I/O current limits. Before connecting sensors or actuators, confirm the exact supply range and pin drive capability in the NXP datasheet. Keep the MCU rail local and controlled, and provide appropriate decoupling according to the manufacturer's recommended layout.
The target uses an 8-SOIC surface-mount package with a listed width of 0.209 inch, or 5.30mm. Follow the official land pattern, pin-1 orientation, solder-mask clearance, and reflow profile rather than relying on a generic SOIC footprint. Leave access for programming and test pads where practical, especially on low-volume or repairable assemblies.
Do not infer compatibility from the shared HC08 name alone. The supplied alternatives are related family candidates, but the data does not verify pin names, memory capacity, peripheral resources, electrical limits, or software compatibility for each candidate. Before replacing MC908QT2ACDWER, compare the official pinout, memory map, reset behavior, clock configuration, programming procedure, and timing specifications.
For keyboard-scanning or switch-input designs, route sensitive input lines away from switching nodes and high-current driver paths. The verified description emphasizes high-current drivers, so the analog and digital return paths should be planned carefully. Confirm whether the application needs external protection, isolation, or transistor stages; the supplied data does not specify those ratings.
合規資訊
The supplied verified results identify automotive and industrial application positioning but do not provide current RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. Compliance must be confirmed with NXP or the authorized distributor for the exact orderable MPN.