M29F200FB55M3E2 - 2Mbit 55ns NOR Flash 5V 44-SO | Micron
MPN: M29F200FB55M3E2 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
M29F200FB55M3E2 Overview
A parallel NOR flash memory is a non-volatile semiconductor memory that allows random access to any address byte or word, making it directly executable (XIP, execute-in-place) by microprocessors. NOR flash sits within the broader memory hierarchy of non-volatile memory ICs, alongside NAND flash and serial NOR flash, and is commonly used for firmware, boot code, and parameter storage in embedded systems where deterministic read latency matters more than storage density.
Key features of the M29F200FB55M3E2 include a single 5 V supply (VCC), a fast 55 ns access time compatible with zero-wait-state microprocessor buses, an embedded program/erase controller implementing automatic byte/word program and sector erase algorithms, and an operating temperature range of -40C to +125C for industrial and automotive-grade environments. The bottom boot block variant (FB) places the boot code blocks at the low-address end of the memory array, matching designs where the reset vector resides at address zero.
On the technical side, the device uses Micron's 5 V NOR flash core technology with a command-set-based program/erase controller: the host processor issues command sequences and the embedded controller times and verifies program and erase operations internally, relieving the system software from pulse-timing loops. Status polling and suspend/resume modes allow code execution while an erase is in progress, an important capability for field-updatable firmware designs.
Typical applications include boot code storage in industrial controllers, telecom and networking line cards, set-top boxes, and legacy 5 V embedded systems requiring parallel-bus firmware memory with industrial temperature range. Its 44-SO surface-mount footprint fits standard through-hole-free assembly processes.
Design considerations: this is a 5 V-only part; level-shift or choose a 3 V family member when interfacing with 3.3 V processors. During erase/program operations, current consumption rises significantly, so decoupling and supply budgeting must follow the manufacturer datasheet.
This page synthesizes distributor pricing comparisons, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for M29F200FB55M3E2 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with M29F200FB55M3E2 (same form factor and footprint) — differing in Memory Type, Boot Block Architecture, Organization, Package Type, Packaging.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
M29F200FB55M3F2
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
M29F200FT55M3F2
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.85 / Unit
View Datasheet →M29F200FB55N3F2
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.2 / Unit
View Datasheet →M29F200BT70M1F
✅ Drop-In📋 Reference alternative (not in catalog)
TMS28F200BZT-70BDBJL
✅ Drop-In📋 Reference alternative (not in catalog)
M29F200FB55M3E2 Maximum Ratings & Electrical Characteristics
| Memory Type | Flash - NOR Memory IC |
| Density | 2097 kbits (2 Mbit) |
| Organization | 128K x 16 bits |
| Number of Words | 128 k |
| Bits per Word | 16 bits |
| Interface | Parallel |
| Access Time | 55 ns |
| Supply Voltage (VCC) | 5 V |
| Boot Block Architecture | Bottom Boot Block |
| Program / Erase Controller | Embedded byte/word program algorithms |
| Operating Temperature | -40C to +125C |
| Package Type | 44-SO (SOP44) |
| Mounting Type | Surface Mount |
| Brand | Micron Technology Inc. |
M29F200FB55M3E2 44-so (sop44) Pin Configuration Guide
Pin configuration for M29F200FB55M3E2 (44-so (sop44) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for M29F200FB55M3E2.
Refer to the datasheet for full pin configuration.
Typical Applications
M29F200FB55M3E2 is suitable for 6 applications: Embedded Boot Code Storage, Industrial Control Systems, Telecom and Networking Line Cards, Legacy 5V System Maintenance and Repair, Automotive and Transportation Electronics, Set-Top Box and Consumer Legacy Designs.
Embedded Boot Code Storage
The M29F200FB55M3E2 stores boot code and reset vectors in microprocessor-based systems. Its bottom boot block architecture places the first sectors at the low-address region where 5 V microcontrollers typically begin execution, and its 55 ns asynchronous parallel interface allows the CPU to execute code directly from flash (XIP) without RAM shadowing. The 2 Mbit (128K x 16) density accommodates compact firmware images typical of industrial control and telecom boards. The embedded program/erase controller enables field firmware updates through standard command sequences, while suspend/resume operation allows continued code reads during background erase. The -40C to +125C operating range supports unconditioned industrial cabinets.
Recommended
Industrial Control Systems
In factory automation controllers and PLC I/O modules, the M29F200FB55M3E2 provides non-volatile firmware and parameter storage on a 5 V parallel bus. The 55 ns access time matches the bus timing of classic industrial 5 V microprocessors without wait states, preserving deterministic read latency critical for real-time control loops. The 2 Mbit array holds the control program plus recipe/calibration data in a single memory, simplifying BOM. Its -40C to +125C temperature range covers unconditioned enclosures near motors and drives. Because the part is EOL, new industrial designs should pair current stock with a validated drop-in from the same M29F200 family to secure lifecycle supply.
Recommended
Telecom and Networking Line Cards
Telecom line cards and network interface boards historically used the M29F200FB55M3E2 for protocol firmware and board identity data. The 5 V supply aligns with legacy backplane logic families, and the 55 ns parallel read supports fast power-on firmware fetch during card initialization. The 128K x 16 organization maps efficiently to 16-bit data paths common in telecom ASIC interfaces. The embedded program/erase controller allows remote firmware upgrade over the network, with sector erase enabling incremental image updates. The 44-SO surface-mount package suits the dense card layouts of rack-mounted telecom equipment, and the extended temperature range handles central-office thermal conditions.
Recommended
Legacy 5V System Maintenance and Repair
Service organizations maintaining legacy 5 V embedded systems - test equipment, medical devices, transportation controllers - rely on the M29F200FB55M3E2 to replace failed flash devices without PCB redesign. The 55 ns timing and 5 V single-supply operation preserve original system performance, and the bottom boot block matches original reset-vector placement. Sourcing from remaining EOL stock or validated family drops-ins (M29F200FB55M3F2) keeps repair turnarounds short. Before replacement, verify the sector organization and programming algorithm command-set in the repair procedure, since firmware update utilities are often written against the specific M29F200 command interface documented in the manufacturer datasheet.
Recommended
Automotive and Transportation Electronics
The M29F200FB55M3E2's -40C to +125C operating range suits under-hood and vehicle-body control modules that store calibration tables and firmware on a 5 V bus. Its 2 Mbit density covers the compact code footprints of earlier-generation ECUs and dashboard controllers, while the 55 ns access time meets the read timing of 5 V automotive microprocessors. The bottom boot block layout matches reset vector conventions of these processors, enabling direct XIP boot. For in-field recalibration, the embedded program/erase controller executes parameter rewrites via standard command sequences. Because the part is EOL, automotive repair and low-volume continuation programs should qualify the same-family FB55M3F2 variant for long-term supply.
Recommended
Set-Top Box and Consumer Legacy Designs
Earlier set-top box, DVD player, and consumer electronics platforms used the M29F200FB55M3E2 to hold channel tables, boot loaders, and base firmware on a 5 V parallel bus. The 55 ns asynchronous interface supports direct code fetch by the system's 5 V MPEG or control processor, avoiding RAM duplication and reducing BOM cost. The 2 Mbit array accommodates compact boot plus parameter storage, while sector-based erase supports parameter updates during use. Its 44-SO package fits cost-driven single-sided consumer PCBs. For service stocking, the same-family M29F200FT55M3F2 top-boot variant should also be inventoried, since consumer platforms used both boot orientations across board revisions.
Recommended
Recommended Products Summary
Engineering reference data for M29F200FB55M3E2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | M29F200FB55M3F2 | M29F200FT55M3F2 | M29F200BT70M1F | TMS28F200BZT-70BDBJL |
|---|---|---|---|---|---|
| Package | 44-SO (SOP44) | 44-SO (SOP44) - same | 44-SO (SOP44) - same | 44-SO (SOP44) - same | 44-SO - verify body dimensions |
| Brand | Micron Technology | Micron Technology | Micron Technology | Micron Technology | Texas Instruments |
| Density | 2 Mbit (128K x 16) | 2 Mbit | 2 Mbit | 2 Mbit | 2 Mbit |
| Access Time | 55 ns | 55 ns | 55 ns | 70 ns | 70 ns |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V |
| Lifecycle Status | EOL | EOL (later suffix revision) | EOL (later suffix revision) | EOL | EOL |
Key Differentiators
- Fastest access time in the 2 Mbit 5 V family (vs M29F200BT70M1F)
- Bottom boot block matches reset-at-address-zero designs (vs M29F200FT55M3F2)
- Extended industrial temperature range in a 5 V-only package (vs TMS28F200BZT-70BDBJL)
Design Notes
Verify the boot block orientation before substitution: M29F200FB parts place boot blocks at the low-address end, M29F200FT parts at the high-address end. Swapping orientations without remapping the reset vector will brick the board at power-up. Also confirm the package suffix - M = SO44, N = TSOP44 - since these bodies are mechanically different and not footprint-compatible despite identical electrical behavior.
The M29F200FB55M3E2 is a 5 V-only device. When interfacing with 3.3 V processors, check that address/data/control lines tolerate the 5 V VOH level or add level shifters; overdriving 3.3 V-only inputs can damage the host IC. Estimated: budget extra supply current during program and erase operations versus read mode - consult the manufacturer datasheet ICC tables for exact values, since erase current can be several times the read current.
Place 0.1 uF ceramic decoupling capacitors directly across VCC and GND pins of the 44-SO package, plus one bulk 10 uF capacitor per device. The 55 ns asynchronous bus transitions generate fast edge rates; keep address and data traces short and matched within the bank to limit ringing. Ground return continuity under the package improves signal integrity on the wide 16-bit data bus.
Because this part is EOL, qualify at least one drop-in (M29F200FB55M3F2 in the same package) before committing remaining production builds. Validate firmware command sequences against the actual installed part - the embedded program/erase controller timing differs slightly between suffix revisions, so flash drivers written for one revision may need timeout-parameter adjustments for another.
Compliance Information
Compliance data was not present in the provided verified web data for this EOL legacy part; consult the official Micron part-detail page for current material declarations.
