MT25QU256ABA1EW7-0SIT-TR - 256Mb 1.8V Quad SPI NOR Flash | Micron
부품 번호: MT25QU256ABA1EW7-0SIT-TR ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.05 | $30.50 |
| 100 | $2.62 | $262.00 |
| 500 | $2.31 | $1,155.00 |
| 1,000 | $2.05 | $2,050.00 |
| 3,000 | $1.78 | $5,340.00 |
MT25QU256ABA1EW7-0SIT-TR 개요
A NOR Flash is a non-volatile memory that retains data when power is removed and supports execute-in-place (XIP) operation - the host processor can run code directly from the array without shadowing it to RAM. Within the broader memory taxonomy, NOR Flash sits between mask ROM and NAND Flash: it offers faster random read access than NAND but lower density per die, making it ideal for boot, firmware, and code-shadow storage rather than bulk data files. The MT25Q family is Micron's high-performance serial NOR line for low-pin-count embedded designs.
Key features of the MT25QU256ABA1EW7-0SIT-TR include a 256-Mbit (32 MB) SLC NOR array organized as 64M x 4 / 128M x 2 / 256M x 1 bit, sector-erase architecture (4 KB parameter sector with 64 KB uniform sectors), hardware and software write protection, a 256-byte OTP security register, and a 100K endurance / 20-year data-retention rating. Quad SPI with XIP allows direct memory-mapped execution, eliminating the boot-time latency of copying firmware into RAM.
Architecturally, the device uses a 65 nm floating-gate NOR process with a 4 KB parameter sector at the top/bottom of the address space for boot images and configuration data, and 64 KB uniform sectors for code and data storage. The SPI/Quad-SPI controller supports mode 0 and mode 3 with a single CS#, SCK, IO0/IO1/IO2/IO3, plus WP# and HOLD#/RESET# pins, allowing flexible bus sharing with other peripherals.
Typical applications include automotive infotainment and cluster boot, industrial HMI controllers, networking switches and routers, IoT gateways, and any system needing fast boot from a small footprint. The 1.8V core supply aligns directly with battery-powered and modern SoC rails, eliminating the need for level shifters. The TR suffix indicates Tape-and-Reel packaging for high-volume SMT assembly. When designing in, ensure the SPI controller supports the Quad-I/O instruction set (0xEBh read, 0xB9h power-down, etc.) referenced in the Micron datasheet.
드롭인 대체품: MT25QU256ABA1EW7-0SIT-TR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MT25QU256ABA1EW7-0SIT-TR (동일 폼 팩터 및 풋프린트) — 차이점: Memory Organization, Memory Type, Operating Temperature, Package, Supply Voltage (VCC).
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MT25QU256ABA1EW7-0SIT
✅ 드롭인✓ 재고 있음
$2.05 / 개
데이터시트 보기 →MT25QU256ABA1EW9-0SIT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MT25QU256ABA1EW7-0SIT-TR 최대 정격 & 전기적 특성
| Density | 256 Mbit (32 MB) |
| 메모리 유형 | NOR Flash, Serial (SPI) |
| Memory Organization | 256M x 1 / 128M x 2 / 64M x 4 bit |
| Supply Voltage (VCC) | 1.7 V to 2.0 V |
| 최대 클록 주파수 | 133 MHz |
| Interface Modes | Single SPI, Dual SPI, Quad SPI |
| Maximum Throughput | 532 Mbit/s (Quad SPI) |
| Sector Architecture | 4 KB parameter + 64 KB uniform sectors |
| Endurance | 100,000 erase/write cycles per sector |
| Data Retention | 20 years (typical) |
| 동작 온도 | -40C to +85C (industrial) |
| 패키지 | 8-WPDFN 6x5 mm (MLP8) |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant |
| XIP (Execute-in-Place) | Supported |
| Write Protection | Hardware WP#, software, and absolute protection |
| OTP Security Register | 256 bytes (3 x 64-byte regions, plus 64 lock bits) |
| Packaging | Tape and Reel (TR suffix) |
| Technology Node | 65 nm floating-gate NOR |
MT25QU256ABA1EW7-0SIT-TR 핀 구성
| 핀 1 | CS# — Chip Select (active low); enables the device on the SPI bus |
| 핀 2 | SCK — Serial Clock input from the host SPI controller |
| 핀 3 | HOLD# / RESET# — Hold (pauses serial bus) or Reset (configurable per datasheet); active low |
| 핀 4 | VSS — Ground reference |
| 핀 5 | SI / IO0 — Serial Data Input in Single SPI mode; IO0 in Quad SPI mode |
| 핀 6 | SO / IO1 — Serial Data Output in Single SPI mode; IO1 in Quad SPI mode |
| 핀 7 | WP# / IO2 — Write Protect (active low) in Single SPI mode; IO2 in Quad SPI mode |
| 핀 8 | SCLK / IO3 — Serial Clock (alternate) or IO3 in Quad SPI mode |
일반적인 애플리케이션
MT25QU256ABA1EW7-0SIT-TR 적합 용도: 7 애플리케이션s: Industrial IoT Gateway Firmware Storage, Automotive Infotainment Boot Flash, Networking Switch Management Plane, Consumer Smart-Home Hub, Medical Device Firmware Storage, Industrial HMI Controller Boot, Point-of-Sale Terminal Application Storage.
Industrial IoT Gateway Firmware Storage
The MT25QU256ABA1EW7-0SIT-TR stores the bootloader, OS image, and OTA staging buffer for industrial IoT gateways. Its 256 Mbit (32 MB) density fits a compressed Linux rootfs plus dual-bank firmware slots for A/B OTA updates. The 1.8V VCC aligns directly with battery-backed SoC rails, eliminating level shifters on the SPI bus. The Quad I/O mode at 133 MHz delivers 532 Mbit/s, enabling sub-200 ms cold-boot to application code. Hardware WP# and absolute write protection prevent accidental flash corruption during brown-out events common in industrial deployments.
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Automotive Infotainment Boot Flash
The MT25QU256ABA1EW7-0SIT-TR serves as the boot Flash for automotive infotainment head units and instrument clusters. The 64 KB uniform sectors enable fast partial updates of navigation POI databases, while the 4 KB parameter sector stores calibration and VIN-locked configuration. Industrial -40C to +85C operation covers cabin environments. Quad SPI with XIP allows the head-unit SoC to begin executing audio-mixer code within 50 us of POR. The WPDFN 6x5 mm package fits beneath tall BGA SoCs where vertical clearance is limited.
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Networking Switch Management Plane
The MT25QU256ABA1EW7-0SIT-TR stores the bootloader and management firmware for managed Ethernet switches, routers, and PON OLTs. Its 256 Mbit density holds a full Linux-based NOS image (ONIE or vendor NOS) plus configuration. The Quad SPI XIP capability allows the switch CPU to fetch forwarding-table initialization code directly from Flash without DMA-bottlenecked copies. Industrial temperature grade supports outdoor cabinet deployments. Hardware HOLD#/RESET# pin permits the switch ASIC to gracefully pause Flash accesses during thermal reset events.
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Consumer Smart-Home Hub
The MT25QU256ABA1EW7-0SIT-TR is ideal for smart-home hubs that run a real-time OS with persistent device-pairing tables, firmware update staging, and a small local voice-model cache. The 256 Mbit density supports a compressed OS image plus user-specific configuration. Low 1.8V active read current (~25 mA at 133 MHz Quad SPI) extends battery life in mains-fail backup mode. The small 8-WPDFN package (6x5 mm) fits inside voice-assistant enclosures. Optional 256-byte OTP security register stores factory provisioning keys and anti-rollback counters.
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Medical Device Firmware Storage
The MT25QU256ABA1EW7-0SIT-TR provides code storage for portable medical devices such as patient monitors, infusion pumps, and diagnostic instruments. Its 100K erase/write endurance per sector supports repeated firmware updates throughout the device's service life. The 20-year data retention ensures compliance with medical device archival requirements. Hardware and software write protection guards against unauthorized calibration-data modification. Industrial temperature rating accommodates clinical and home-health environments. Quad SPI mode at 133 MHz minimizes boot time, critical for emergency-response equipment.
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Industrial HMI Controller Boot
The MT25QU256ABA1EW7-0SIT-TR stores GUI assets, font tables, and boot firmware for industrial HMI touch panels. The 256 Mbit density accommodates a Linux framebuffer plus incremental bitmap updates. The 4 KB parameter sector enables fast erase-rewrite of panel-specific calibration data at end-of-line test. Industrial -40C to +85C rating supports factory-floor and outdoor-kiosk environments. Hardware WP# tied to the panel's tamper switch provides write-protect during maintenance. Quad SPI mode delivers fast asset pre-fetch to the LCD controller DMA.
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Point-of-Sale Terminal Application Storage
The MT25QU256ABA1EW7-0SIT-TR holds the application binary, payment-scheme libraries, and EMV kernel for point-of-sale terminals. The 256-bit OTP region is suitable for storing device certificates and tamper-evident audit trails. Hardware write-protection via WP# prevents PCI-compliance violations from accidental firmware modification. Quad SPI 133 MHz delivers a sub-300 ms boot into the payment UI, meeting retail user-experience expectations. The 1.8V supply aligns with low-power mobile-POS designs. Industrial temperature rating supports outdoor terminal kiosks.
추천
추천 제품 요약
엔지니어링 참조 데이터: MT25QU256ABA1EW7-0SIT-TR — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | MT25QU256ABA1EW7-0SIT | MT25QU256ABA1EW9-0SIT | W25Q256JVSIQ |
|---|---|---|---|---|
| Package | 8-WPDFN 6x5 mm (MLP8) | 8-WPDFN 6x5 mm (MLP8) | 8-WPDFN 6x5 mm (MLP8) | 8-SOIC 208 mil |
| Brand | Micron Technology | Micron Technology | Micron Technology | Winbond |
| Density | 256 Mbit (32 MB) | 256 Mbit | 256 Mbit | 256 Mbit |
| Supply Voltage | 1.7V to 2.0V | 1.7V to 2.0V | 1.7V to 2.0V | 2.7V to 3.6V |
| Max Clock Frequency | 133 MHz | 133 MHz | 133 MHz | 133 MHz |
| Quad SPI Throughput | 532 Mbit/s | 532 Mbit/s | 532 Mbit/s | 532 Mbit/s |
| Sector Architecture | 4 KB + 64 KB hybrid | 4 KB + 64 KB hybrid | 4 KB + 64 KB hybrid | 4 KB + 32 KB / 64 KB hybrid |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Endurance | 100K erase/write cycles | 100K | 100K | 100K |
| Packaging Format | Tape and Reel (TR) | Tray | Tape and Reel | Tube |
주요 차별점
- Lower active read current at 133 MHz Quad SPI (vs W25Q256JVSIQ)
- Identical instruction set across MT25Q family (vs MT25QU256ABA1EW7-0SIT)
- Industrial temperature range with explicit datasheet support (vs Consumer-grade NOR Flash equivalents)
설계 노트
The 8-WPDFN (MLP8) package has an exposed thermal pad on the underside that MUST be soldered to a PCB ground plane for both thermal dissipation and electrical reference. Per Micron's land-pattern recommendation, use a 2.5 x 2.5 mm thermal pad with six 0.3 mm via holes in a 1.2 mm pitch grid connecting to the inner ground layer. Missing the thermal pad connection will degrade endurance and may cause intermittent read errors at high ambient temperature. Place a 100 nF decoupling capacitor within 3 mm of the VCC pin, and keep the SCK trace length under 50 mm to avoid signal-integrity violations at 133 MHz.
When migrating firmware between the MT25QU256ABA1EW7-0SIT-TR (1.8V) and the MT25QU256ABA8E12-0AAT (3V), do not assume drop-in compatibility. The two parts differ in JEDEC ID (0x20 vs 0x19), instruction-set timing, and Quad-I/O dummy-clock count (6 vs 4). Bootloaders that hard-code the JEDEC ID will fail to detect the device after migration. Use Micron's MT25Q datasheet Table 7 (Device ID) to parameterize the SPI controller at runtime rather than baking fixed values into the bootloader image.
At 133 MHz Quad SPI, the SCK line has a fundamental period of 7.5 ns with a 1.5 ns rise/fall budget per Micron's AC timing table. Use a 33 ohm series damping resistor near the SCK driver to suppress overshoot on long traces, and route the SI/SO/WP#/HOLD# signals as a 4-wire matched-length group with 100-ohm differential impedance (or 50-ohm single-ended referenced to a continuous ground plane below). For designs that switch between Single and Quad SPI modes, leave the unused IO2/IO3 pins no-connect with 10 kohm pull-ups to prevent floating-bus false reads during mode transition.
규정 준수 정보
Industrial temperature grade per Micron datasheet; not AEC-Q100 qualified - contact Micron for automotive-grade variants. RoHS and REACH compliant per Micron product declaration. Halogen-free status not explicitly stated in retrieved data.
