MC68HC908QT1MP - 8-Bit 8MHz 1.5KB Flash MCU | NXP
部品番号: MC68HC908QT1MP ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.1473 | $1.15 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MC68HC908QT1MP 概要
A microcontroller is a programmable semiconductor that integrates a CPU, memory, and peripherals on one device. The M68HC08 family belongs to the broader embedded-controller hierarchy and uses the enhanced CPU08 core, a CISC instruction set, and Von Neumann program-memory organization. This architecture favors compact code, straightforward peripheral integration, and deterministic control rather than high-throughput application processing.
The MC68HC908QT1MP provides 1.5 KB of flash for program storage, eliminating a separate external program-memory device for small firmware images. Its 64-byte RAM supports variables, stack operations, and short-lived control data. The listed 8 MHz operating speed provides basic task execution capability, while low-voltage detection helps the firmware identify an undervoltage condition before relying on an unreliable supply level.
Because the verified product information does not enumerate every peripheral, I/O count, electrical limit, timing range, or converter specification, those details remain unstated rather than inferred. Engineers should confirm the exact pin functions, oscillator requirements, supply limits, programming method, and timing behavior against the manufacturer data sheet before schematic release.
Typical uses include basic embedded controllers, small appliance control panels, simple sensor-conditioning nodes, and low-cost systems requiring nonvolatile firmware. The 8-pin package is especially useful when board space is constrained, although the restricted pin count requires careful prioritization of power, programming, clock, control, and signal functions.
Design begins by verifying that 1.5 KB is sufficient for the final compiled image and that 64 bytes of RAM accommodates the stack plus all live variables. Avoid adding time-critical communication or high-current I/O tasks unless their required interfaces, timing, and electrical limits are confirmed in the datasheet.
This page combines verified NXP product facts, distributor availability information, package-oriented sourcing details, and explicit engineering caveats where the supplied data does not support a specification. It is intended to narrow the decision without presenting unverified electrical or peripheral claims as facts.
ドロップイン代替品: MC68HC908QT1MP — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MC68HC908QT1MP （同一形状・フットプリント） — 相違点: ADC, Maximum Clock Frequency, Package, Flash Memory, Operating Temperature.
クイック比較ツール — 並列比較する代替部品を選択:
MC68HC908QT1MPE
✅ ドロップイン✓ 在庫あり
$1.95 / 個
データシートを見る →MC68HC908QT1CFQ
✅ ドロップイン✓ 在庫あり
$1.4 / 個
データシートを見る →MC68HC908QT4VPE
✅ ドロップイン✓ 在庫あり
価格はお問い合わせください
データシートを見る →MC68HC908JL8MFAE
✅ ドロップイン✓ 在庫あり
$5.4 / 個
データシートを見る →MCHC908QT2CDWE
✅ ドロップイン✓ 在庫あり
$1.8208 / 個
データシートを見る →MC68HC908QT1MP 最大定格＆電気的特性
| Microcontroller Type | 8-bit microcontroller |
| Architecture | CISC with Von Neumann architecture |
| CPU Core | Enhanced M68HC08 CPU08 |
| 最大クロック周波数 | 8 MHz |
| Flash Memory | 1.5 KB |
| Flash Organization | 1.5K x 8 bits |
| RAM | 64 bytes |
| Low-Voltage Detection | Supported |
| パッケージ | 8-pin package |
| Target Applications | Basic embedded control applications |
| Program Memory Type | Flash |
MC68HC908QT1MP 8-pin package ピン配置ガイド
MC68HC908QT1MP (8-pin package パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: MC68HC908QT1MP.
詳細は データシート をご参照ください。
主な用途
MC68HC908QT1MP の用途: 6 件s: Basic Appliance Control, Industrial Sensor Node, Low-Cost Sequential Controller, Smart Home Interface Module, Battery-Powered Control Node, LED Sequencing and Display Control.
Basic Appliance Control
The MC68HC908QT1MP fits a basic appliance controller when the firmware is intentionally small and the board needs nonvolatile program storage in an 8-pin package. Its 8 MHz CPU08 core can execute straightforward state-machine logic, while 1.5 KB of flash supports a compact control image and 64 bytes of RAM can hold limited state variables. Low-voltage detection is useful when the controller must recognize a supply transition and enter a controlled response. Before committing, compile the final firmware and check stack depth, all live variables, and the exact package pinout.
おすすめ
Industrial Sensor Node
The MC68HC908QT1MP can serve as a low-cost sensor node when each input requires only deterministic digital control. The 8 MHz CPU08 core handles compact polling and threshold logic, while flash preserves firmware through power loss and 64 bytes of RAM limits working storage to short-term state. Low-voltage detection provides a useful supply-monitoring input for fail-safe behavior. Because ADC resolution, timer resources, communications, and I/O count are not supplied, the design should not assume analog conversion or networking; confirm those capabilities before selecting sensors or bus interfaces.
おすすめ
Low-Cost Sequential Controller
For a sequential controller, the MC68HC908QT1MP offers a simple architecture around its 8 MHz CPU08 core and 1.5 KB of Flash program memory. Small mode controllers, stepper sequences, relay schedules, or timed interlocks can be implemented when their code fits the memory budget. The 64-byte RAM requirement deserves early attention because nested functions, interrupt service routines, and copied data structures can consume that space rapidly. Use the low-voltage-detection feature to coordinate a safe shutdown state, but verify thresholds and response timing against the authoritative datasheet.
おすすめ
Smart Home Interface Module
The MC68HC908QT1MP is suitable for a compact smart-home interface module that converts a small number of digital inputs or outputs into predetermined behavior. Its 8-pin format assists board-space reduction, while Flash stores the resident firmware and 64 bytes of RAM supports minimal state tracking. A practical design should reserve pins only for functions confirmed in the exact package drawing and should avoid assuming wireless connectivity or a high-speed serial interface. If upstream supervision or isolated communication is required, add a dedicated interface device after validating logic levels and timing.
おすすめ
Battery-Powered Control Node
The MC68HC908QT1MP can support a small battery-powered control node when the firmware uses infrequent wake events and retains little state between sleeps. Its nonvolatile 1.5 KB Flash permits a permanent program image, while 64 bytes of RAM constrains buffering and dynamic storage. Low-voltage detection is relevant to battery systems because it can flag a declining source voltage before the output behavior becomes unreliable. Sleep-current figures, brownout thresholds, and run-mode current were not provided, so battery life cannot be estimated from the verified data and must be measured with the final power architecture.
おすすめ
LED Sequencing and Display Control
The MC68HC908QT1MP can control a small LED sequence when the design uses simple timing and does not require a large display buffer. Its 8 MHz processor is capable of deterministic pattern generation, while 64 bytes of RAM limits stored frame data and temporary animation state. Keep timing loops within the capabilities of the exact timer and oscillator configuration, and account for output current limits before driving several LEDs directly. An external driver may be necessary for matrix displays or high current, but the required driver selection depends on package I/O ratings that are not included in the verified snippets.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MC68HC908QT1MP — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MC68HC908QT1MPE | MC68HC908QT1CFQ | MC68HC908QT4VPE | MC68HC908JL8MFAE | MCHC908QT2CDWE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 8-pin package | 8-pin package | 8-pin package | 8-pin package | 8-pin package | 8-pin package |
主な差別化要因
- Exact MPN continuity for an existing target design （vs MC68HC908QT1MPE)
- Known 8 MHz operating point （vs MC68HC908QT4VPE)
- Nonvolatile 1.5 KB program memory in a compact package （vs MCHC908QT2CDWE)
- Low-voltage detection for basic embedded supervision （vs MC68HC908JL8MFAE)
設計ノート
Do not treat related HC08 order codes as automatically interchangeable. MC68HC908QT1MPE, MC68HC908QT1CFQ, MC68HC908QT4VPE, MC68HC908JL8MFAE, and MCHC908QT2CDWE are listed as alternatives only at the family and package level supported by the retrieved snippets. Before substitution, compare the manufacturer ordering table, exact package drawing, pin names, supply limits, clock pins, programming signals, memory map, and qualification suffix.
Build a power budget around the 64-byte RAM constraint and the device's actual operating modes. The verified data confirms 1.5 KB Flash and 64-byte RAM but provides no operating-current, sleep-current, or voltage-range values, so battery life and regulator sizing cannot be calculated responsibly. Measure the assembled board across startup, active, idle, and shutdown states, and confirm the low-voltage-detection threshold against the manufacturer datasheet before defining system cutoff behavior.
Route programming, clock, reset, supply, and ground connections according to the exact MC68HC908QT1MP datasheet rather than a generic 8-pin DIP assumption. Keep programming-test pads accessible if the unit will be programmed in circuit, but verify the supported programming voltage first. Decoupling values, oscillator layout, and exposed signal limits are unavailable in the supplied snippets and must be copied from the authoritative package and electrical-information sections.
Firmware should be linked early because 1.5 KB of Flash and 64 bytes of RAM leave little margin for unplanned code or deep call stacks. Check the map file for total code, static allocation, initialized data, stack headroom, interrupt vectors, and library pull-ins. If the image does not fit, simplify before increasing speed or adding peripherals; the 8 MHz clock does not compensate for insufficient memory capacity.
Do not infer I/O drive strength, input thresholds, injection limits, or digital peripheral timing from the generic 8-bit and 8 MHz labels. Verify every external signal against the electrical characteristics for the exact suffix and temperature grade. For switches, relays, cables, or long traces, add appropriate isolation, pull devices, or buffering based on calculated rise and fall times rather than assuming the nominal CPU frequency controls output-edge behavior.
コンプライアンス情報
The supplied verified snippets do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. No compliance claim is inferred.
