M29F800FT55N3E2 - 8Mb 5V Parallel NOR Flash 55ns | Micron
部品番号: M29F800FT55N3E2 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $7.84 | $7.84 |
| 10 | $7.06 | $70.60 |
| 100 | $6.28 | $628.00 |
| 500 | $5.65 | $2,825.00 |
| 1,000 | $4.98 | $4,980.00 |
M29F800FT55N3E2 概要
A parallel NOR Flash memory is a non-volatile semiconductor memory that supports random, word- or byte-addressable reads, making it the classic choice for boot code storage where the CPU fetches instructions directly from flash (execute-in-place). Unlike NAND Flash, NOR offers fast random access at the expense of density, sitting in the memory hierarchy between mask ROM/EEPROM and high-density NAND storage.
Key features include a single 5V supply (VCC) for both read and program/erase operations, a 55 ns access time suitable for zero-wait-state microprocessor buses, and an embedded program/erase controller that automates byte/word programming and block erase algorithms, offloading software complexity. The top boot block architecture places the small blocks at the top of the array, which is the conventional location for boot code, and the device includes a ready/busy output for polling program/erase completion.
Technical depth: the M29F800 family uses NOR cell architecture with command-set programming via standard bus commands. Byte mode is selected through the BYTE# pin, and the RP# (reset/power-down) pin provides hardware reset and deep power-down for low standby consumption. The device is rated for 100,000 program/erase cycles per block with data retention exceeding 20 years, typical for mature NOR technology.
Typical applications include firmware/boot code storage in industrial controllers, set-top boxes, telecom equipment, automotive modules operating across the full -40C to +125C range, and legacy 5V embedded systems where 3V NOR is not viable.
Design consideration: keep RP# driven high during all read and program operations - leaving RP# floating or low holds the device in reset and blocks bus access; also budget program/erase time in firmware since erase of a 64 Kbyte block takes on the order of seconds.
This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: M29F800FT55N3E2 — 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: M29F800FT55N3E2 （同一形状・フットプリント） — 相違点: Package, Density, RoHS Status, Memory Type, Organization.
クイック比較ツール — 並列比較する代替部品を選択:
M29F800FT55N3E2
✅ ドロップイン✓ 在庫あり
$4.98 / 個
データシートを見る →M29F800FB55N3E2
✅ ドロップイン✓ 在庫あり
$3.83 / 個
データシートを見る →M29F400FT55N3E2
✅ ドロップイン✓ 在庫あり
$4.15 / 個
データシートを見る →M29F400FT55M3E2
✅ ドロップイン✓ 在庫あり
$1.98 / 個
データシートを見る →M29F800FB55M3E2
✅ ドロップイン✓ 在庫あり
$3.01 / 個
データシートを見る →M29F800FT55N3E2 最大定格＆電気的特性
| メモリタイプ | NOR Flash |
| Memory Organization | 512K x 16 (8 Mbit) |
| Density | 8389 kbits |
| Access Time | 55 ns |
| 電源電圧 | 5 V |
| インターフェース | Parallel |
| Boot Block Architecture | Top Boot Block |
| 動作温度 | -40C to +125C |
| パッケージ | 48-TSOP I |
| 実装タイプ | Surface Mount |
| Word/Byte Configuration | BYTE# pin selectable (16-bit / 8-bit) |
| Hardware Reset / Power-Down | RP# pin |
| Embedded Program/Erase Controller | Yes (byte/word program, block erase) |
| Program/Erase Endurance | 100,000 cycles per block (typical for family) |
| Data Retention | >20 years (typical for family) |
| Ready/Busy Output | Yes |
| RoHS ステータス | Compliant (E suffix = lead-free/RoHS) |
M29F800FT55N3E2 ピン構成
| ピン 1 | A15 — Address input 15 |
| ピン 2 | A16 — Address input 16 |
| ピン 3 | NC — Not connected (per datasheet) |
| ピン 4 | VSS — Ground |
| ピン 5 | NC — Not connected (per datasheet) |
| ピン 6 | A17 — Address input 17 |
| ピン 7 | A18 — Address input 18 |
| ピン 8 | NC — Not connected (per datasheet) |
| ピン 9 | DQ14 — Data input/output 14 |
| ピン 10 | DQ15/A-1 — Data I/O 15; address A-1 in byte mode |
| ピン 11 | VCC — 5V power supply |
| ピン 12 | RP# — Reset / deep power-down, active low |
| ピン 13 | BYTE# — Byte/word width select, active low = byte mode |
| ピン 14 | VSS — Ground |
| ピン 15 | DQ7 — Data input/output 7 |
| ピン 16 | DQ6 — Data input/output 6 (toggle bit status) |
| ピン 17 | DQ5 — Data input/output 5 (program/erase timeout status) |
| ピン 18 | DQ4 — Data input/output 4 |
| ピン 19 | DQ3 — Data input/output 3 |
| ピン 20 | DQ2 — Data input/output 2 |
| ピン 21 | DQ1 — Data input/output 1 |
| ピン 22 | DQ0 — Data input/output 0 |
| ピン 23 | OE# — Output enable, active low |
| ピン 24 | VSS — Ground |
| ピン 25 | A0 — Address input 0 |
| ピン 26 | A1 — Address input 1 |
| ピン 27 | A2 — Address input 2 |
| ピン 28 | A3 — Address input 3 |
| ピン 29 | A4 — Address input 4 |
| ピン 30 | A5 — Address input 5 |
| ピン 31 | A6 — Address input 6 |
| ピン 32 | A7 — Address input 7 |
| ピン 33 | A8 — Address input 8 |
| ピン 34 | A9 — Address input 9 |
| ピン 35 | A10 — Address input 10 |
| ピン 36 | A11 — Address input 11 |
| ピン 37 | A12 — Address input 12 |
| ピン 38 | A13 — Address input 13 |
| ピン 39 | A14 — Address input 14 |
| ピン 40 | CE# — Chip enable, active low |
| ピン 41 | VSS — Ground |
| ピン 42 | WE# — Write enable, active low |
| ピン 43 | VCC — 5V power supply |
| ピン 44 | NC — Not connected (per datasheet) |
| ピン 45 | NC — Not connected (per datasheet) |
| ピン 46 | RB#/NC — Ready/busy output (family-dependent; verify against datasheet) |
| ピン 47 | NC — Not connected (per datasheet) |
| ピン 48 | NC — Not connected (per datasheet) |
主な用途
M29F800FT55N3E2 の用途: 6 件s: Industrial Controller Boot Firmware, Automotive Module Firmware Storage, Telecom and Networking Line Cards, Legacy 5V Embedded Systems, Set-Top Box and Consumer Electronics, Test and Measurement Instrumentation.
Industrial Controller Boot Firmware
The M29F800FT55N3E2 is widely used as boot and firmware memory in industrial PLCs, motor drives and factory automation controllers. Its 55 ns access time allows a 5V microprocessor to fetch code directly from flash with zero or minimal wait states, while the top boot block layout keeps reset/startup vectors in small protected sectors. The embedded program/erase controller lets firmware self-update in the field over the same parallel bus. Rated from -40C to +125C, the device survives the extended temperature profiles of industrial cabinets. Pair the flash with a 5V supervisor to hold RP# valid during power transitions and prevent accidental code corruption during brownouts.
おすすめ
Automotive Module Firmware Storage
With an operating range of -40C to +125C, the M29F800FT55N3E2 meets the temperature demands of automotive body control, instrumentation and legacy engine management modules that still run on 5V microcontrollers. Its 8 Mbit capacity holds a bootloader plus a full application image, and the top boot block keeps startup code in hardware-protectable sectors against accidental erase. The embedded program/erase controller with ready/busy polling simplifies in-field reprogramming at the service line. According to the Mouser listing, the device is a parallel, 8Mb, TSOP 48-pin, 55ns top-boot part - the classic profile for 5V automotive firmware memory.
おすすめ
Telecom and Networking Line Cards
Telecom equipment such as routers, switches and line cards historically used parallel NOR Flash for boot ROM, MAC/PHY configuration images and diagnostics. The M29F800FT55N3E2 fits this role with a 512K x 16 organization that maps naturally onto 16-bit processor buses, and its 55 ns access time keeps code execution in place without shadow RAM. The BYTE# pin allows an 8-bit bus design when pin count is constrained. The RP# deep power-down reduces standby drain on always-on telecom shelves. Its -40C to +125C rating covers both central-office and outdoor plant temperature classes.
おすすめ
Legacy 5V Embedded Systems
Many installed 5V microcontroller systems - test instruments, point-of-sale terminals, medical bench devices - were designed around 5V parallel NOR Flash and cannot migrate to 3V parts without board redesign. The M29F800FT55N3E2 is the direct sustain source for these sockets: it requires a single 5V supply for read, program and erase, and matches the 48-TSOP I footprint of the original M29F800 family. Because Alliance Memory also manufactures the identical MPN, supply continuity is preserved for end-of-life lines. Typical retrofit work consists only of firmware verification against the top boot block map and a socketed board-level swap.
おすすめ
Set-Top Box and Consumer Electronics
Set-top boxes and consumer AV equipment use parallel NOR Flash for the bootloader and power-on diagnostics that must execute before any mass storage is available. The M29F800FT55N3E2's 55 ns access time supports execute-in-place from a 16-bit bus, and its 8 Mbit capacity is sufficient for boot code plus rescue firmware for the main NAND/serial storage. The embedded program/erase controller enables secure over-the-air update staging with the ready/busy pin providing deterministic completion signaling. Its RoHS-compliant lead-free finish (E suffix) satisfies consumer environmental regulations across global markets.
おすすめ
Test and Measurement Instrumentation
Bench instruments - oscilloscopes, signal generators, power supplies - store calibration tables, boot firmware and UI resources in parallel NOR Flash. The M29F800FT55N3E2 suits this duty: 100,000 program/erase cycles per block (typical for the family) allow frequent calibration rewrites in dedicated sectors, while the 55 ns read speed keeps startup fast. The hardware RP# reset input guarantees a clean bus state if the instrument power sequence glitches, and the BYTE# pin supports both 8- and 16-bit legacy controllers. Operating to +125C covers bench environments with restricted airflow or adjacent hot components.
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: M29F800FT55N3E2 — 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 | M29F800FT55N3E2 (Alliance) | M29F800FB55N3E2 | M29F400FT55N3E2 | M29F400FT55M3E2 |
|---|---|---|---|---|---|
| Package | 48-TSOP I | 48-TSOP I - same | 48-TSOP I - same | 48-TSOP I - same | 48-TSOP I - same |
| Brand | Micron Technology | Alliance Memory | Micron Technology | Micron Technology | Micron Technology |
| Density | 8 Mbit (512K x 16) | 8 Mbit (512K x 16) | 8 Mbit (512K x 16) | 4 Mbit (256K x 16) | 4 Mbit (256K x 16) |
| Access Time | 55 ns | 55 ns | 55 ns | 55 ns | 55 ns |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V |
| Boot Block Location | Top boot | Top boot | Bottom boot | Top boot | Top boot |
| RoHS / Lead-Free | Compliant (E suffix) | Compliant (E suffix) | Compliant (E suffix) | Compliant (E suffix) | Compliant (E suffix) |
主な差別化要因
- Identical MPN manufactured by a second vendor （vs M29F800FT55N3E2 (Alliance Memory))
- Top boot block for protected boot code （vs M29F800FB55N3E2)
- Double the density of the 4 Mbit variant at same footprint （vs M29F400FT55N3E2)
設計ノート
The M29F800FT55N3E2 requires a single 5V rail for read, program and erase. Program and erase current pulses are higher than read current, so size the 5V regulator and bulk decoupling (recommend 0.1 uF ceramic at each VCC pin plus 10 uF bulk near the device) to handle erase transients without rail droop. Droop below the minimum VCC during program/erase can corrupt the block being written. Do not drive address/data lines above VCC during power-down - the RP# pin must track the 5V rail or be pulled low to keep the bus in reset.
Never leave RP# floating. If RP# is low or floating, the device stays in reset and all read attempts return undefined data - a very common bring-up failure. Tie RP# to VCC through a supervisor or GPIO that is valid before CPU reset releases. Also verify boot block orientation in firmware: this FT version places small boot sectors at the TOP of the 512K-word array; code written assuming bottom boot (FB) will jump into uniform sectors and hang. Finally, poll DQ7 or use ready/busy rather than fixed delays for program/erase completion.
Keep the parallel address/data bus stubs short (under ~50 mm for 55 ns-class access) and maintain series termination on heavily loaded address lines to control ringback at the fast edges. Ensure VSS pins (4, 14, 24, 41) all connect to a solid ground plane, not a shared thin trace. For panel or rework, the 48-TSOP I gull-wing pitch of 0.5 mm requires solder-paste inspection to prevent bridging between adjacent DQ pins. Matching the footprint to the datasheet land pattern allows direct drop-in of Alliance Memory and FB/M variants of the same family.
コンプライアンス情報
RoHS/lead-free indicated by the E suffix in the MPN and by distributor classification. Formal REACH, halogen-free and conflict-minerals declarations not found in provided data - obtain certificates from Micron or Alliance Memory.