MC9S08SH32MTJ - 8-bit 40MHz 32KB Flash MCU | NXP Semiconductors
部品番号: MC9S08SH32MTJ ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.57 | $2.57 |
| 10 | $2.44 | $24.40 |
| 100 | $2.25 | $225.00 |
| 500 | $2.06 | $1,030.00 |
| 1,000 | $1.93 | $1,930.00 |
MC9S08SH32MTJ 概要
An 8-bit microcontroller (MCU) is a single-chip embedded processor that integrates a CPU core, program memory (Flash), data memory (RAM), and peripherals such as timers, serial interfaces, and analog-to-digital converters on one die. Within the embedded systems hierarchy, the S08 family sits in the low-end 8-bit MCU class, positioned below 16-bit devices like the S12 and 32-bit ARM-based Kinetis parts, and is typically used where cost, simplicity, and 5V robustness matter more than raw processing power.
The MC9S08SH32MTJ belongs to the S08SH family, which NXP positions as a low-end option for 5-volt applications. Key features include a 40MHz S08 CISC core, 32KB (32K x 8) Flash program memory, 1KB RAM, and a wide peripheral set: serial communications interface (SCI), serial peripheral interface (SPI), inter-integrated circuit (I2C), and an analog-to-digital converter (ADC). According to NXP, the S08SH family is pin, tool, and software compatible with the S08SG family, offering design flexibility across the two families.
For development, the device provides a single-wire background debug interface (BDM), breakpoint capability with in-circuit debugging, and an on-chip debug (ICE) module containing two comparators and nine trigger modes with an eight-deep FIFO for storing change-of-flow address and event-only data. This eliminates the need for costly socketed emulators and lowers the barrier for low-volume firmware development.
Typical applications include automotive body electronics (the part is AEC-Q100 qualified), industrial control boards, appliance and white-goods controllers, and 5V sensor or actuator subsystems where the wide 5V operating range simplifies power design compared with 3.3V-only MCUs.
A key design consideration: the MC9S08SH32MTJ is End-of-Life per the NXP product page, so new designs should target the pin-compatible S08SG family, and existing designs should plan a last-time-buy or migration strategy.
This page synthesizes distributor pricing, drop-in alternatives, lifecycle status, and practical design notes not found in the manufacturer datasheet, giving engineers a single sourcing and migration reference as of 2026-10-18.
ドロップイン代替品: MC9S08SH32MTJ — 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: MC9S08SH32MTJ （同一形状・フットプリント） — 相違点: Packaging, Core Processor, Debug Interface, Instruction Set, Package / Case.
クイック比較ツール — 並列比較する代替部品を選択:
MC9S08SG32CTJ
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC9S08SH16MTJ
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.95 / 個
データシートを見る →MC9S08SH4MFK
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.15 / 個
データシートを見る →MC9S08SG16CTJ
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC9S08SH32MTJ 最大定格＆電気的特性
| Core Processor | S08 (8-bit CISC) |
| Core Size | 8-bit |
| Speed | 40 MHz |
| Program Memory Size | 32KB (32K x 8) Flash |
| RAM Size | 1K x 8 |
| Number of I/O | 17 |
| 電源電圧 | 3.3V / 5V |
| Peripherals | SCI, SPI, I2C, ADC |
| Debug Interface | Single-wire background debug (BDM), on-chip ICE with 2 comparators, 9 trigger modes, 8-deep FIFO |
| パッケージ / ケース | 20-TSSOP (0.173 inch, 4.40mm width) |
| 実装タイプ | Surface Mount |
| Qualification | Automotive AEC-Q100 |
| Family Compatibility | Pin, tool and software compatible with S08SG family |
| ライフサイクル状態 | End of Life (per NXP product page) |
| Packaging | Tube |
MC9S08SH32MTJ 20-tssop (0.173 inch, 4.40mm width) ピン配置ガイド
MC9S08SH32MTJ (20-tssop (0.173 inch, 4.40mm width) 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: MC9S08SH32MTJ.
詳細は データシート をご参照ください。
主な用途
MC9S08SH32MTJ の用途: 6 件s: Automotive Body Electronics, Industrial Control Boards, Appliance and White-Goods Controllers, 5V Sensor and Actuator Subsystems, Consumer Electronics and Lighting Controls, Legacy Design Maintenance and EOL Mitigation.
Automotive Body Electronics
The MC9S08SH32MTJ is AEC-Q100 qualified, making it suitable for automotive body modules such as door control units, seat position modules, and lighting controllers. Its 5V-capable operating range tolerates the supply transients common in vehicle electrical systems, while the 40MHz S08 core handles the simple state-machine logic these modules require. The SCI and LIN-capable serial interface supports in-vehicle networking, and the ADC reads sensor inputs such as position potentiometers. Because the part is End of Life, existing automotive designs should plan migration to the pin-compatible S08SG family, which NXP confirms shares pin, tool, and software compatibility, preserving qualification effort at the board level.
おすすめ
Industrial Control Boards
In industrial control applications such as relay timing boards, motor start modules, and sensor hubs, the MC9S08SH32MTJ offers a robust 8-bit solution: 32KB Flash holds protocol stacks and diagnostic code, 17 I/O lines drive indicators and read switches, and the SPI/I2C peripherals connect external ADCs or EEPROMs. The 5V supply range simplifies integration with legacy 24V-system front ends that regulate down to 5V. Development is streamlined by the single-wire background debug interface and on-chip ICE module, which provide breakpoints and trace via the 8-deep FIFO without an external emulator, reducing development cost for low-volume industrial equipment.
おすすめ
Appliance and White-Goods Controllers
Home appliances - washing machine panels, fan speed regulators, and small heating controls - are classic 5V 8-bit MCU territory. The MC9S08SH32MTJ fits because its 32KB Flash accommodates button-debounce, display multiplexing, and safety-interlock logic, while the ADC digitizes NTC temperature sensors and user potentiometers. The wide supply range tolerates the noisy power environment of appliances with motors and relays. Its 20-TSSOP, 4.40mm-wide package suits compact single-sided or two-layer cost-optimized PCBs. For EOL replacement, the MC9S08SG32 in the same package offers identical footprint and toolchain compatibility, minimizing redesign for appliance platforms in long service lives.
おすすめ
5V Sensor and Actuator Subsystems
Many industrial and automotive sensors still run on 5V rails, and the MC9S08SH32MTJ natively suits these nodes: the 5V supply eliminates level-shifting to 3.3V-only MCUs, the on-chip ADC samples analog sensor outputs, and I2C/SPI links the node to a gateway controller. The SCI interface supports LIN-style point-to-point links to actuators such as small motors or valve drivers. With 1KB of RAM and 32KB Flash, the device can buffer readings, apply calibration, and run simple filtering. The single-wire debug interface allows field-firmware updates during manufacturing via bed-of-nails fixtures without dedicated connector access.
おすすめ
Consumer Electronics and Lighting Controls
Cost-sensitive consumer products such as LED driver controllers, small chargers, and remote-control receivers benefit from the MC9S08SH32MTJ's balance of memory and price: 32KB Flash leaves headroom for feature additions across product generations on one PCB, and the 17 I/O lines cover keypads, LEDs, and infrared receiver inputs. The 40MHz bus speed outpaces entry-level 8-bit MCUs, allowing tighter interrupt latency for IR decoding. The 20-TSSOP package supports compact layouts. Note that for new consumer designs the part's End-of-Life status makes the pin-compatible, active MC9S08SG32 the recommended starting point, since it preserves the same footprint and development environment.
おすすめ
Legacy Design Maintenance and EOL Mitigation
A primary real-world role of the MC9S08SH32MTJ today is sustaining long-lived products already in the field - elevator panels, metering equipment, and vehicle submodules with 10-20 year service expectations. Since NXP has marked the part End of Life, engineering teams use remaining broker stock (LCSC and Heisener showed in-stock quantities as of 2026-10-18) for last-time buys, while qualifying the S08SG family as the forward path: NXP explicitly documents pin, tool, and software compatibility, so the same 20-TSSOP footprint, CodeWarrior toolchain, and firmware base carry over. The NXP community forum also confirms S08SG and S08EL families as the recognized replacement directions for MC9S08SH devices.
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: MC9S08SH32MTJ — 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 | MC9S08SG32CTJ | MC9S08SH16MTJ | MC9S08SH4MFK |
|---|---|---|---|---|
| Package | 20-TSSOP (4.40mm width) | 20-TSSOP - same footprint | 20-TSSOP - same footprint | 20-TSSOP - same footprint |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Speed | S08 8-bit, 40 MHz | S08 8-bit, 40 MHz | S08 8-bit, 40 MHz | S08 8-bit, 40 MHz |
| Flash Memory | 32KB (32K x 8) | 32KB | 16KB | 4KB |
| Lifecycle Status | End of Life (per NXP) | Recommended replacement family (verify current status) | End of Life (same family) | End of Life (same family) |
| Pin Compatibility | Reference (S08SH, 20-TSSOP) | Pin-compatible per NXP S08SH/S08SG statement | Pin-compatible (same family) | Pin-compatible (same family) |
主な差別化要因
- Full 32KB Flash in a small 20-pin package （vs MC9S08SH16MTJ)
- Active-family migration path with zero PCB rework （vs MC9S08SG32CTJ)
- Honest trade-off: same silicon but smaller memory in family variants （vs MC9S08SH4MFK)
設計ノート
The MC9S08SH32MTJ is End of Life per the NXP product page. Do not start new designs with this part. For existing designs, verify your exact ordering suffix (MTJ = 20-TSSOP) before any substitution attempt - suffix letters encode package and temperature grade, so different S08SH32 suffixes are not footprint-compatible. Check the NXP Product Change Notice for the official discontinuance timeline and last-time-buy window before committing to a final production build.
Plan EOL mitigation around the S08SG family rather than broker stock alone. NXP documents S08SH as pin, tool, and software compatible with S08SG, and the NXP community forum lists MC9S08SG32 as a recognized replacement for MC9S08SH32. Even with pin compatibility, run your full firmware regression on the replacement die: peripheral-level differences between families (ADC channel mapping, register bit fields, oscillator trimming) can behave subtly differently. Verify RAM sizing on the replacement against the SH32's 1KB.
For the 20-TSSOP package, place the 0.1uF VDD decoupling capacitor within 2-3mm of the supply pin with a solid ground return; the wide 5V operating range of the S08SH family tolerates supply transients but does not remove the need for local bypassing, especially in automotive and appliance environments. Route the single-wire background debug (BDM) pin to a 2- or 3-pad test point so in-circuit debugging and production programming remain possible without connector cost.
コンプライアンス情報
AEC-Q100 automotive qualification is stated in the Arrow distributor listing. RoHS/REACH/lead-free status is published on the NXP product page Environmental Quality section but was not captured in the verified data; consult https://www.nxp.com/part/MC9S08SH32MTJ.
