MT25QL128ABB1EW7-CAUT - 128Mb SPI NOR Flash 133MHz | Micron
部品番号: MT25QL128ABB1EW7-CAUT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.85 | $28.50 |
| 100 | $2.4 | $240.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.8 | $1,800.00 |
MT25QL128ABB1EW7-CAUT 概要
A serial NOR flash device stores code and data in a non-volatile memory array that a host microcontroller or processor reads over a standard SPI bus. Serial NOR sits below parallel NOR and NAND in the memory hierarchy and is the de facto standard for boot code, firmware XIP (execute-in-place), and parameter storage in embedded systems, where pin count, board area, and reliability matter more than raw density.
Key features include 128 Mb density organized as 256 sectors of 64 KB (with 4 KB subsector erase), quad I/O operation for effective read throughput up to 66 MB/s-class performance at 133 MHz, hardware and software write protection, and industrial-grade endurance and retention specifications per the MT25Q family datasheet. The -CAUT suffix denotes automotive qualification with AEC-Q100-grade temperature support.
The device supports standard SPI command sets plus Micron eXecute-In-Place XIP mode, dual-output (2x) and quad-output (4x) read commands that fetch data on multiple DQ lines per clock, and deep power-down for low standby power. Fast random access makes it well suited to code shadowing and XIP, not just bulk data logging.
Typical applications include automotive ECU boot flash, engine and body control modules, industrial PLCs and motor drives, networking equipment firmware storage, and embedded Linux/QNX boot devices.
Design consideration: enable QUAD mode via the extended/volatile configuration register and confirm W#/VPP and HOLD#/DQ3 handling on your SPI controller; do not leave DQ3 floating in quad mode.
This page synthesizes distributor availability, drop-in alternatives, pinout, and design notes beyond what the manufacturer datasheet alone provides.
ドロップイン代替品: MT25QL128ABB1EW7-CAUT — 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: MT25QL128ABB1EW7-CAUT （同一形状・フットプリント） — 相違点: Package, Supply Voltage, Interface, Memory Type, Mounting Type.
クイック比較ツール — 並列比較する代替部品を選択:
MT25QL128ABB1EW7-CSIT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MT25QL128ABA1EW7-0SIT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MT25QL256ABB1EW7-CAUT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MT25QL512ABB1EW7-CAUT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MT25QL064ABB1EW7-CAUT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MT25QL128ABB1EW7-CAUT 最大定格＆電気的特性
| メモリタイプ | FLASH - NOR Memory IC |
| Density | 128 Mbit (16 MB) |
| インターフェース | SPI - Quad I/O |
| 最大クロック周波数 | 133 MHz |
| 電源電圧 | 2.7 V to 3.6 V (3 V class) |
| 動作温度 | -40C to +125C |
| Process Technology | 45 nm IT |
| パッケージ | 8-WPDFN (6x5 mm) (MLP8) |
| 実装タイプ | Surface Mount |
| FBGA / Marking Code | RW314 |
| Sector Size | 64 KB (with 4 KB subsector erase) |
| Read Modes | SPI, Dual I/O, Quad I/O, XIP |
| Automotive Qualification | Automotive grade (-CAUT suffix) |
| Product Longevity Program | No |
| Programming Voltage | 3 V (single supply, W#/VPP pin) |
MT25QL128ABB1EW7-CAUT ピン構成
| ピン 1 | S# — Chip select (active low) |
| ピン 2 | DQ1 — Serial data output / DQ1 in dual and quad I/O modes |
| ピン 3 | W# — Write protect (active low) / VPP programming voltage input |
| ピン 4 | VSS — Ground |
| ピン 5 | DQ0 — Serial data input / DQ0 in dual and quad I/O modes |
| ピン 6 | C — Serial clock input |
| ピン 7 | DQ3 — HOLD# in SPI mode / DQ3 in quad I/O mode |
| ピン 8 | VCC — Power supply (2.7 V to 3.6 V) |
主な用途
MT25QL128ABB1EW7-CAUT の用途: 6 件s: Automotive ECU Boot Flash, Industrial PLC and Motor Drives, Networking and Communication Equipment, Embedded Linux / RTOS Boot Devices, Automotive Instrument Cluster and Infotainment, Battery-Powered and Portable Devices.
Automotive ECU Boot Flash
The MT25QL128ABB1EW7-CAUT is purpose-built for automotive ECU boot code storage, with its -40C to +125C automotive temperature range and AEC-grade qualification path aligning with under-hood and body-control environments. In a typical engine, gearbox, or body-domain controller, the MCU or SoC fetches its boot code and calibration firmware over the quad I/O SPI bus at 133 MHz, using XIP mode for low-latency direct execution. The 64 KB sector architecture supports 4 KB subsector erase, allowing calibration data to be updated without erasing the boot image. Placed close to the MCU with short SPI traces, the 8-WPDFN (6x5) footprint occupies minimal board area. Its single 3 V supply simplifies the power tree compared with dual-voltage parallel NOR solutions.
おすすめ
Industrial PLC and Motor Drives
Industrial programmable logic controllers, servo drives, and motor inverters demand firmware storage that survives wide temperature swings, vibration, and frequent parameter updates. The MT25QL128ABB1EW7-CAUT's 128 Mb capacity holds bootloader, RTOS image, and application code, while its -40C to +125C operation covers control-cabinet and drive-integrated environments. Quad I/O at 133 MHz reduces boot time significantly versus single-bit SPI, and XIP mode allows the main controller to execute directly from flash during early startup. The 4 KB subsector erase granularity lets drive parameters and fault logs be updated in the field without long erase cycles affecting the firmware region. Hardware write protection on the W#/VPP pin guards the boot image against accidental corruption during commissioning.
おすすめ
Networking and Communication Equipment
Routers, switches, and baseband modules use serial NOR flash to store bootloader, OS loader, and configuration images. The MT25QL128ABB1EW7-CAUT's 133 MHz quad I/O interface delivers the throughput needed to load multi-megabyte firmware quickly during power-on, minimizing perceived boot latency. The 16 MB capacity accommodates redundant (A/B) firmware slots for fail-safe over-the-air or web-based upgrades, with the 64 KB sector map simplifying image layout and management. The 8-WPDFN (6x5 mm) package fits dense line-card and SFP-module-adjacent layouts where board real estate is scarce. Micron's XIP support allows early CPU bring-up directly from flash, and deep power-down mode reduces standby draw in always-on but low-duty-cycle equipment.
おすすめ
Embedded Linux / RTOS Boot Devices
Embedded Linux and RTOS platforms (ARM Cortex-A/M, RISC-V) typically store SPL, U-Boot, device tree, and kernel images in SPI NOR flash. The MT25QL128ABB1EW7-CAUT provides 16 MB - enough for a compact kernel plus recovery loader - and its quad I/O 133 MHz reads shorten kernel decompression and boot time measurably versus 50 MHz single-bit flash. Micron's XIP mode supports SPL execution directly from the SPI bus, and the standard MT25Q command set is supported by mainline U-Boot and Linux MTD SPI-NOR drivers, reducing integration effort. The 4 KB subsector erase permits frequent update of U-Boot environment variables without disturbing the kernel partition, improving field-upgrade reliability in connected IoT gateways and edge devices.
おすすめ
Automotive Instrument Cluster and Infotainment
Digital instrument clusters and infotainment head units require fast, reliable boot storage for GPU firmware, bootloader chains, and configuration data. The MT25QL128ABB1EW7-CAUT's automotive -40C to +125C rating and qualification pedigree match cockpit electronics requirements, while its 133 MHz quad I/O interface accelerates early boot so displays and safety tell-tales appear within mandated timing windows. The 16 MB capacity stores boot, calibration, and graphics microcode, with hardware write protection isolating safety-relevant boot blocks from updateable user content. Placed beside the SoC on the same power domain (2.7-3.6 V), it avoids level-shifting complexity. The exposed-pad MLP8 package provides solid solder-joint reliability under automotive thermal cycling profiles.
おすすめ
Battery-Powered and Portable Devices
Portable, wearable, and battery-backed instruments benefit from the MT25QL128ABB1EW7-CAUT's deep power-down mode and 3 V single-supply operation, which fit typical Li-ion rail power trees without extra regulators. In these designs, the flash stores bootloader, application firmware, and sensor calibration tables; quad I/O at 133 MHz lets the MCU finish boot and return to low-power sleep states quickly, preserving battery budget. The compact 8-WPDFN 6x5 mm footprint suits space-constrained handheld and wearable PCBs, and the industrial-capable temperature range plus automotive grade options provide margin for devices exposed to sunlight or vehicle cabins. Its standard SPI command interface connects directly to virtually any MCU with a hardware SPI or QSPI peripheral, minimizing glue logic.
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: MT25QL128ABB1EW7-CAUT — 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 | MT25QL128ABB1EW7-CSIT | MT25QL128ABA1EW7-0SIT | MT25QL256ABB1EW7-CAUT | MT25QL512ABB1EW7-CAUT | MT25QL064ABB1EW7-CAUT |
|---|---|---|---|---|---|---|
| Package | 8-WPDFN (6x5 mm) (MLP8) | 8-WPDFN (6x5 mm) - same | 8-WPDFN (6x5 mm) - same | 8-WPDFN (6x5 mm) - same | 8-WPDFN (6x5 mm) - same | 8-WPDFN (6x5 mm) - same |
| Brand | Micron Technology | Micron Technology | Micron Technology | Micron Technology | Micron Technology | Micron Technology |
| Density | 128 Mbit (16 MB) | 128 Mbit (16 MB) | 128 Mbit (16 MB) | 256 Mbit (32 MB) | 512 Mbit (64 MB) | 64 Mbit (8 MB) |
| Max Clock Frequency | 133 MHz | 133 MHz | 133 MHz | 133 MHz | 133 MHz | 133 MHz |
| Interface | SPI / Dual I/O / Quad I/O | SPI / Dual I/O / Quad I/O | SPI / Dual I/O / Quad I/O | SPI / Dual I/O / Quad I/O | SPI / Dual I/O / Quad I/O | SPI / Dual I/O / Quad I/O |
| Operating Temperature | -40C to +125C (automotive) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +125C (automotive) | -40C to +125C (automotive) | -40C to +125C (automotive) |
| Addressing | 3-byte (4-byte optional) | 3-byte (4-byte optional) | 3-byte (4-byte optional) | 3-byte (4-byte optional) | 4-byte required above 128 Mb boundary | 3-byte |
| Target Market | Automotive (AEC-grade path) | Industrial | Industrial | Automotive | Automotive | Automotive |
主な差別化要因
- Automotive temperature qualification （vs MT25QL128ABB1EW7-CSIT)
- Lower second-source risk than cross-brand swaps （vs MT25QL128ABA1EW7-0SIT)
- Right-sized 128 Mb density in 8-pin footprint （vs MT25QL512ABB1EW7-CAUT)
設計ノート
At 133 MHz quad I/O, SPI trace lengths become a real constraint. Keep S#, C, and DQ0-DQ3 traces under 10 cm where possible, match clock-to-data skew within the datasheet setup/hold budget, and avoid routing the SPI bus across power-plane splits. Add 22-33 ohm series resistors on C and DQ lines if ringing appears at the receiver. In quad mode, DQ3 doubles as HOLD#/output-enable, so it must be actively driven by the host in quad reads - do not pull it to a fixed rail, or read throughput collapses.
QUAD mode is not enabled by default: set the appropriate bit in the enhanced volatile (or non-volatile) configuration register during initialization, or issue the quad-peripheral-interface entry command per your bootloader. Forgetting this step makes the device run in single-bit SPI at reduced throughput. Also note W#/VPP is a dual-function pin - if used as hardware write protect, ensure it is not asserted during programming of protected regions. Confirm 4-byte vs 3-byte addressing expectations if migrating from or to 512 Mb variants.
Use the exposed pad under the 8-WPDFN (6x5) package as the primary ground connection and solder it to a Via-in-pad or short thermal-tie ground plane for reliable grounding and mechanical strength under automotive vibration profiles. Follow the IPC-recommended MLP8 land pattern in the Micron package drawing, and place a 100 nF ceramic decoupling capacitor within 3 mm of pin 8 (VCC) plus a 10 uF bulk capacitor nearby. Inspect solder joints with X-ray or AOI since the pad-side joints are hidden beneath the package.
コンプライアンス情報
Automotive grade (-CAUT suffix) with -40C to +125C operation per Micron part catalog. RoHS/REACH/lead-free status not stated in the provided web data - confirm on Micron's official part detail page.
