M29W800FB70N3F - 8Mb Parallel NOR Flash 70ns TSOP-48 | Micron
部品番号: M29W800FB70N3F ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.26 | $1.26 |
| 10 | $1.18 | $11.80 |
| 100 | $1.1 | $110.00 |
| 500 | $1 | $500.00 |
| 1,000 | $0.91 | $910.00 |
M29W800FB70N3F 概要
A parallel NOR Flash is a non-volatile memory technology that allows random access to any address, making it the classic choice for storing boot code and firmware that a processor executes in place (XIP). Unlike serial NOR or NAND devices, parallel NOR connects directly to a microprocessor address and data bus, which is why it remains popular in industrial controllers, set-top boxes, and automotive electronics where deterministic access time matters more than raw density.
Key features include an 8 Mbit density organized as 19 memory blocks (1 boot block, 3 parameter blocks, and 15 main blocks), dual x8/x16 bus organization selected via the BYTE# pin, and a guaranteed 70 ns access time at VCC of 3.0V to 3.6V. The device operates from a single 3V supply for read, program, and erase operations.
The device embeds an on-chip program/erase controller executing automatic byte/word program and block erase algorithms, freeing the host CPU from timing management. Typical programming time is 10 microseconds per byte/word. Erase suspend and resume modes allow the CPU to read or program another block while a slow erase cycle is in progress, and an unlock bypass program command accelerates batch programming in production. The RP# (reset/power-down) pin provides instant reset and low standby current.
The bottom boot block variant places the 16 Kbyte boot sector at the bottom of the address map, matching processors that keep reset vectors at address 0. Automotive-qualified supply options (per Mouser listing) suit instrument clusters and body electronics.
Typical applications include boot firmware storage in set-top boxes, industrial PLCs, networking equipment, and automotive modules requiring a 3V parallel boot Flash.
Design consideration: verify boot block location (bottom vs. top) against the processor reset vector map before committing the layout; the FT (top boot) variant is the pin-compatible complement.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: M29W800FB70N3F — 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: M29W800FB70N3F （同一形状・フットプリント） — 相違点: Memory Type, Organization, Packaging, Memory Size, Package.
クイック比較ツール — 並列比較する代替部品を選択:
M29W800FT70ZA3SE
✅ ドロップイン✓ 在庫あり
$1.38 / 個
データシートを見る →M29W160FB70N3E
✅ ドロップイン✓ 在庫あり
$3.58 / 個
データシートを見る →M29W160EB70N3E
✅ ドロップイン✓ 在庫あり
$1.76 / 個
データシートを見る →MX26LV800ABTC-70
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AT49BV802A-70TI
✅ ドロップイン📋 参考代替品（カタログ未掲載）
M29W800FB70N3F 最大定格＆電気的特性
| Density | 8 Mbit |
| メモリ構成 | 512K x 16 / 1M x 8 |
| Access Time | 70 ns |
| Supply Voltage (VCC) | 2.7 V to 3.6 V |
| インターフェースタイプ | Parallel |
| メモリタイプ | NOR Flash (Boot Block) |
| Boot Block Location | Bottom |
| Block Count | 19 memory blocks (1 boot, 3 parameter, 15 main) |
| Bus Width Selection | x8 / x16 via BYTE# pin |
| Programming Time | 10 us per byte/word (typical) |
| CFI Compliant | Yes |
| Erase Suspend/Resume | Yes |
| パッケージ | TSOP-48 (12 x 20 mm) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| Packaging | Tape & Reel |
M29W800FB70N3F tsop-48 (12 x 20 mm) ピン配置ガイド
M29W800FB70N3F (tsop-48 (12 x 20 mm) 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: M29W800FB70N3F.
詳細は データシート をご参照ください。
主な用途
M29W800FB70N3F の用途: 6 件s: Set-Top Box Boot Firmware, Automotive Instrument Clusters, Industrial PLC and Motor Control, Networking Equipment Boot Storage, Printer and Office Equipment Controllers, Embedded Control and Metering.
Set-Top Box Boot Firmware
The M29W800FB70N3F fits set-top box designs that store boot code and low-level firmware in parallel NOR Flash executed in place (XIP). Its 70 ns access time allows the host SoC to fetch reset vectors and initialization code directly without deep wait states, while the 8 Mbit density accommodates bootloader plus configuration images. The bottom boot block places the small, frequently-protected 16 Kbyte boot sector at address 0, and the embedded program/erase controller with erase suspend lets the CPU read parameter blocks while a main block erase runs in the background. The 2.7V to 3.6V single supply simplifies power design around a common 3.3V rail.
おすすめ
Automotive Instrument Clusters
Mouser lists the M29W800FB70N3F as automotive grade, making it suitable for instrument clusters and body electronics that store calibration data and boot firmware. The 3V parallel interface connects directly to automotive MCUs, and the 70 ns access time supports deterministic code execution at startup. The RP# reset pin guarantees a defined memory state during vehicle power transients, and the x8/x16 selectable bus width lets one board design serve multiple MCU variants. The RoHS-compliant TSOP-48 package withstands standard automotive reflow assembly. Designers should validate qualification level against program requirements and reserve the boot block from in-field erase cycles to protect reset code integrity over vehicle lifetime.
おすすめ
Industrial PLC and Motor Control
In industrial programmable logic controllers and motor drive boards, the M29W800FB70N3F stores firmware and parameter tables on the processor's parallel bus. The 8 Mbit density covers bootloader plus ladder-logic interpreter code, and CFI compliance lets software query block geometry generically across the Micron/ST NOR family, easing firmware portability between 8 Mbit and 16 Mbit variants. Unlock bypass programming accelerates firmware updates during production batch flashing, and erase suspend/resume lets the application service interrupts and read look-up tables while blocks erase. The 2.7V to 3.6V supply range tolerates industrial 3.3V rail tolerance, and the TSOP-48 footprint enables drop-in migration within the same family.
おすすめ
Networking Equipment Boot Storage
Switches, routers, and modems commonly keep boot ROM and MAC/PHY configuration in parallel NOR Flash, where the M29W800FB70N3F provides 8 Mbit on a 16-bit bus at 70 ns. Executed-in-place boot code removes the need for a code-copy RAM stage at power-on, shortening link-up time. The 19-block architecture separates the protected boot block, three parameter blocks for configuration, and fifteen main blocks for firmware, enabling A/B firmware update schemes. Erase suspend ensures management CPU access during firmware upgrades. The bottom boot map suits network processors with reset vectors at address zero; the top-boot family variant covers the alternative convention without PCB change.
おすすめ
Printer and Office Equipment Controllers
Laser printers and multifunction devices store engine-controller firmware in parallel NOR such as the M29W800FB70N3F. The 70 ns access time sustains real-time page-processing code execution from Flash, while the 8 Mbit capacity holds boot code, fonts metadata, and engine parameters. CFI compliance allows one firmware flash driver to manage multiple densities across a printer product line, and the unlock bypass command shortens factory image programming to near the 10 us/word hardware limit, reducing production test time. The single 3V supply and RoHS-compliant TSOP-48 package integrate cleanly into office-equipment power and assembly flows, with the RP# pin providing deterministic reset during paper-jam recovery power events.
おすすめ
Embedded Control and Metering
Smart meters, building controllers, and white-goods electronics use the M29W800FB70N3F for boot and calibration firmware. The bottom boot block isolates reset code from frequently rewritten logs, and the hardware block protection on the boot sector prevents accidental corruption of metrology constants during field updates. The x8 mode supports 8-bit MCUs common in cost-sensitive metering platforms, while the 2.7V supply floor supports battery-assisted designs near end-of-life. Embedded program/erase algorithms remove timing software burden from small RTOS footprints. With 1000-piece pricing near $0.91 as of 2026-09-04, the device also offers an attractive cost point for high-volume consumer-embedded deployments.
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: M29W800FB70N3F — 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 | M29W800FT70ZA3SE | M29W160FB70N3E | MX26LV800ABTC-70 | AT49BV802A-70TI |
|---|---|---|---|---|---|
| Package | TSOP-48 (12 x 20 mm) | TSOP-48 - same | TSOP-48 - same | TSOP-48 - same | TSOP-48 - same |
| Brand | Micron Technology | Micron Technology | Micron Technology | Macronix | Microchip Technology (Atmel) |
| Density | 8 Mbit | 8 Mbit | 16 Mbit | 8 Mbit | 8 Mbit |
| Access Time | 70 ns | 70 ns | 70 ns | 70 ns | 70 ns |
| Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.65 V to 3.6 V |
| Erase Suspend/Resume | Yes | Yes | Yes | Yes | Yes |
主な差別化要因
- Bottom boot block matches address-0 reset vector processors （vs M29W800FT70ZA3SE)
- Same-family 16 Mbit upgrade path on the same PCB （vs M29W160FB70N3E)
- ST/Micron block architecture vs Atmel architecture （vs AT49BV802A-70TI)
設計ノート
Route the BYTE# pin to a pull-up or processor GPIO, not directly to VCC or GND, so the same PCB can ship in either x8 or x16 configurations. Keep the RP# line controllable by the host CPU (not hard-wired high) - driving RP# low during power-up transients places the device in reset/power-down and prevents spurious program or erase commands from bus glitches, which is the most common cause of corrupted boot blocks in the field.
Decouple VCC and VCCQ with 0.1 uF ceramic capacitors at the package plus a 4.7 uF to 10 uF bulk capacitor near the device. Program and erase currents are pulsed and higher than read current; inadequate bulk capacitance on the 3.3V rail can cause brown-out resets of the MCU during block erase. Confirm that the 2.7V minimum supply is not violated at the pins during worst-case erase current surges.
Verify boot block position before layout sign-off: the FB (bottom boot) variant in this part number places reset vectors at low addresses, but the FT (top boot) variant is otherwise identical and pin-compatible. Mixing them silently reverses the vector map. Also confirm the firmware driver matches the ST/Micron command set - substituting an Atmel-architecture part such as AT49BV802A-70TI requires software revalidation even though the package is identical.
コンプライアンス情報
Distributor spec page states 'RoHS compliant, plastic, TSOP-48'. Mouser listing identifies the part as Automotive-grade; specific AEC-Q100 qualification status not stated in provided data.
