M29F800FT55M3F2 - 8Mbit 5V Parallel NOR Flash 55ns | Micron
料号： M29F800FT55M3F2 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.6 | $2.60 |
| 10 | $2.45 | $24.50 |
| 100 | $2.3 | $230.00 |
| 500 | $2.2 | $1,100.00 |
| 1,000 | $2.1 | $2,100.00 |
M29F800FT55M3F2 概述
Parallel NOR Flash is a non-volatile memory technology organized as a memory-mapped array that a processor can execute code from directly (execute-in-place, XIP). Within the memory hierarchy it sits alongside SRAM, DRAM, and serial NOR Flash as a core memory IC, distinguished by random access via a parallel address/data bus and by very high read reliability, making it a classic boot-memory choice in embedded systems.
Key features include single 5V supply operation for both read and program/erase, a fast 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, removing timing burden from the host CPU. The dual organization (x8/x16) lets one PCB footprint serve 8-bit and 16-bit bus designs.
Architecturally, the device uses a uniform-array block structure with hardware data protection, status polling, and command-set-based operation typical of the M29F family. The 5V I/O interface makes it directly compatible with classic 5V microcontrollers such as the 8051, 68k, and PowerPC families without level shifting.
Typical applications include boot code storage in industrial control, telecommunications line cards, set-top boxes, and automotive-adjacent industrial modules operating from -40C to +125C, where a 5V legacy bus must interface with non-volatile code memory.
Design consideration: confirm the boot-block position (top for this FT suffix, bottom for FB suffix) matches your reset vector, since swapping FT and FB parts requires address remapping even though the footprint is identical.
This page adds value beyond the datasheet by synthesizing distributor pricing, drop-in same-package alternatives, and practical selection notes in one place.
直接替换替代料： M29F800FT55M3F2 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： M29F800FT55M3F2 （相同外形与封装尺寸） ——差异在于 Organization, Package, Memory Type, Interface, Density.
快速对比工具——选择替代料号进行并排对比：
M29F800FB55M3F2
✅ 直接替换✓ 有现货
$3.72 / 个
查看数据手册 →M29F800FT55M3E2
✅ 直接替换✓ 有现货
$3.95 / 个
查看数据手册 →M29F800FB55N3F2
✅ 直接替换✓ 有现货
$2.47 / 个
查看数据手册 →M29F800FT55N3F2
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$0.78 / 个
查看数据手册 →M29F400FT55N3F2
✅ 直接替换✓ 有现货
$1.51 / 个
查看数据手册 →M29F800FT55M3F2 最大额定值与电气特性
| 存储器类型 | Parallel NOR Flash |
| Density | 8 Mbit (8389 kbits) |
| 存储组织 | 512K x 16 / 1M x 8 |
| Access Time | 55 ns |
| Supply Voltage (VCC) | 5 V |
| Boot Block Position | Top boot block |
| Programming Interface | Embedded program/erase controller |
| 工作温度 | -40C to +125C |
| 封装 | 44-pin SO (SOP) |
| 安装类型 | Surface Mount |
| Packaging | Tape & Reel (TR) |
| 接口 | Parallel, x8/x16 selectable |
| RoHS 状态 | Compliant (lead-free suffix F2) |
M29F800FT55M3F2 44-pin so (sop) 引脚配置指南
M29F800FT55M3F2（44-pin so (sop) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： M29F800FT55M3F2.
请参阅 数据手册 以查看完整引脚配置。
典型应用
M29F800FT55M3F2 适用于 6 应用s: Boot Code Storage in Industrial Controllers, Telecommunications Line Cards, Set-Top Box and Consumer Electronics Boot Memory, Legacy 5V Microprocessor Systems, Automotive-Adjacent Industrial Modules, Test and Measurement Instrument Firmware.
Boot Code Storage in Industrial Controllers
The M29F800FT55M3F2 stores bootloader and firmware images in industrial PLCs, motor drives, and process controllers that still run 5V microprocessor buses. Its 55 ns access time supports zero-wait-state code fetch, while the top boot block protects the reset vector from accidental erasure during field firmware updates. The embedded program/erase controller allows the host CPU to issue block erase and word program commands without timing loops, simplifying in-field update firmware. Operating from -40C to +125C, it survives factory-floor temperature extremes, and the 44-pin SO footprint allows footprint-compatible density moves within the M29F family.
推荐
Telecommunications Line Cards
Legacy telecom line cards and network interface modules frequently use 5V parallel NOR Flash for code storage. The M29F800FT55M3F2's parallel x16 bus interfaces directly to classic communication processors without glue logic, and its 8 Mbit density accommodates protocol stacks and diagnostics. The 55 ns access time matches the bus timing of 5V-era telecom ASICs, and the embedded program/erase controller supports remote firmware download over the network. Its -40C to +125C rating covers outdoor cabinets and unconditioned equipment rooms, while the tape-and-reel format suits automated assembly of high-card-count production.
推荐
Set-Top Box and Consumer Electronics Boot Memory
Set-top boxes and consumer AV equipment built on 5V platforms use the M29F800FT55M3F2 to hold boot code and channel tables. The top boot block isolates the bootloader so application regions can be updated via OTA mechanisms without risking a bricked device. The 512K x16 organization provides 1 MB equivalent storage in a single 44-pin SO package, keeping BOM cost near $2.60 as of 2026-09-05. Its x8/x16 selectable bus lets one design serve both cost-optimized 8-bit and performance-oriented 16-bit processor variants, and the embedded program/erase controller removes CPU load during table updates.
推荐
Legacy 5V Microprocessor Systems
Designs based on 8051, 68k, or PowerPC-class 5V processors require memory with native 5V I/O. The M29F800FT55M3F2 eliminates level shifters because its VCC and I/O are both specified at 5V, and its 55 ns timing meets classic EPROM-bus timing requirements, making it a direct successor to 27C080-class EPROMs with in-system reprogrammability. The x8 mode supports byte-wide 8051 buses while x16 mode doubles throughput on 68k systems. The M29F family command set (mirroring JEDEC-style conventions) simplifies migration from earlier 5V Flash generations within the same footprint.
推荐
Automotive-Adjacent Industrial Modules
Modules installed near automotive environments - telematics gateways, fleet trackers, off-highway equipment controllers - benefit from the M29F800FT55M3F2's -40C to +125C operating range and robust parallel NOR reliability for code storage. The device's hardware data protection guards against spurious writes during power transients common in 12V/24V vehicle electrical systems, and the top boot block keeps the boot image immutable during application updates. The 5V rail is directly available from legacy vehicle supply chains using 5V regulators, and the 44-pin SO package withstands vibration better than fine-pitch BGAs.
推荐
Test and Measurement Instrument Firmware
Bench instruments and data loggers built on 5V architectures use the M29F800FT55M3F2 for firmware and calibration-table storage. Random parallel access at 55 ns supports fast boot and lookup-table reads, while in-system programmability lets service technicians update firmware in the field. The 8 Mbit capacity separates a small protected boot region from larger application and calibration blocks. The wide -40C to +125C range accommodates instruments stored in vehicles or unheated facilities, and the SO package's gull-wing leads support straightforward inspection and rework on instrument assembly lines.
推荐
推荐产品汇总
工程参考数据： M29F800FT55M3F2 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | M29F800FB55M3F2 | M29F800FT55M3E2 | M29F800FT55N3F2 |
|---|---|---|---|---|
| Package | 44-pin SO (SOP) | 44-pin SO (SOP) - same | 44-pin SO (SOP) - same | 44-pin SO ordering code - verify |
| Brand | Micron Technology | Micron Technology | Micron Technology | Micron Technology |
| Density | 8 Mbit | 8 Mbit | 8 Mbit | 4 Mbit |
| Access Time | 55 ns | 55 ns | 55 ns | 55 ns |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| Boot Block Position | Top | Bottom | Top | Top |
| Organization | 512K x16 / 1M x8 | 512K x16 / 1M x8 | 512K x16 / 1M x8 | 256K x16 / 512K x8 |
| Lead-Free / RoHS Suffix | F2 (lead-free) | F2 (lead-free) | E2 (legacy suffix) | F2 (lead-free) |
关键差异点
- Top boot block protects reset vector （对比 M29F800FB55M3F2)
- Current lead-free F2 ordering code （对比 M29F800FT55M3E2)
- Double the code capacity per footprint （对比 M29F400FT55N3F2)
设计说明
Verify boot block position before substituting: the FT suffix in M29F800FT55M3F2 places boot blocks at the top of the address map, so a pin-compatible FB (bottom boot) part will mis-map the reset vector and brick the system even though it drops onto the same footprint. Cross-check your processor's reset vector address against the datasheet block address table before finalizing the BOM, especially when dual-sourcing FT and FB variants across product lines.
Decouple VCC with a 0.1 uF ceramic capacitor placed within a few millimeters of the 44-pin SO package supply pins, and add bulk capacitance (4.7-10 uF estimated value - confirm against the Micron datasheet ICC transient figures) to support program/erase current surges. Keep address and data bus traces length-matched loosely; at 55 ns access times, signal integrity is forgiving, but avoid routing the write-enable line adjacent to clock lines to prevent spurious program commands during bus contention.
The device operates from a single 5V rail for read, program, and erase; do not attempt operation at 3.3V. Ensure the host CPU uses the BYTE pin correctly to select x8 versus x16 organization, floating it only where the datasheet permits. During power-up and power-down, hold output enable and write enable deasserted to prevent accidental writes - implement the reset/power-down pin (RP) driven by a supervisor for reliable brown-out protection rather than relying on resistor pull-ups alone.
合规信息
F2 suffix indicates lead-free/RoHS-compliant ordering code per Micron numbering and distributor listings. REACH, halogen-free, and conflict-minerals status not stated in provided data - verify on Micron product page.
