M29F800FT55M3E2 - 8Mbit 55ns 5V Parallel NOR Flash | Micron
MPN: M29F800FT55M3E2 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.62 | $56.20 |
| 100 | $4.95 | $495.00 |
| 500 | $4.48 | $2,240.00 |
| 1,000 | $3.95 | $3,950.00 |
M29F800FT55M3E2 Overview
Parallel NOR Flash is a nonvolatile memory technology in which the memory array is addressed directly over a parallel address and data bus, allowing the CPU to execute code in place (XIP) without first copying it to RAM. In the memory hierarchy, it sits alongside SRAM and DRAM as a memory IC, distinguished by nonvolatility, high read reliability, and low bit-level random-access latency. NOR is chosen over NAND when random byte-level reads and code execution matter more than raw density.
Key features of the M29F800FT55M3E2 include embedded byte/word program and erase algorithms that offload timing control from the host MCU, erase suspend and resume modes that allow the CPU to read from other blocks while an erase is in progress, and low standby power consumption with an automatic standby mode. The device guarantees 100,000 program/erase cycles per block, and electronic signature identification allows software to query manufacturer and device codes. The T suffix denotes a top boot block architecture, which protects the boot code sector located at the top of the address map.
Technically, the device operates from a single 5V VCC for both read and program/erase operations, simplifying power design in legacy 5V industrial and automotive systems. The 55 ns access time supports zero-wait-state operation with many 16-bit microcontrollers and microprocessors. The E suffix in the ordering code indicates a RoHS-compliant package, and the 3 speed/grade digit denotes the 125C Auto Grade temperature rating.
Typical applications include boot code storage in automotive ECUs, industrial control and motor drive systems, telecom line cards, and embedded instrumentation where code is executed in place from Flash over a 16-bit bus.
When designing with this part, ensure address and data bus traces are length-matched for the 55 ns timing budget, and implement the software data protection algorithms exactly as described in the datasheet command set.
This page synthesizes verified distributor data, drop-in alternatives, and design guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for M29F800FT55M3E2 — 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 M29F800FT55M3E2 (same form factor and footprint) — differing in Organization, Density, Package, RoHS Status, Memory Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
M29F800FB55M3E2
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.01 / Unit
View Datasheet →M29F800FT70M3E2
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
M29F800FB70M3E2
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
M29F800FT55M3E2 Specifications
| Memory Type | NOR Flash |
| Memory Size | 8 Mbit |
| Organization | 512K x 16 bit |
| Interface | Parallel |
| Access Time | 55 ns |
| Supply Voltage | 5 V |
| Operating Temperature | -40C to +125C |
| Boot Block Location | Top boot block |
| Program/Erase Cycles | 100,000 per block |
| Program Algorithm | Embedded byte/word program |
| Erase Features | Erase suspend and resume |
| Standby Mode | Automatic standby, low power |
| Identification | Electronic signature |
| Package | 44-SO (SOP) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (E suffix) |
| Density | 8389 kbits |
M29F800FT55M3E2 44-so (sop) Pin Configuration Guide
Pin configuration for M29F800FT55M3E2 (44-so (sop) package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for M29F800FT55M3E2.
Refer to the datasheet for full pin configuration.
Typical Applications
M29F800FT55M3E2 is suitable for 6 applications: Automotive ECU Boot Code Storage, Industrial Control and PLC Systems, Telecom Line Cards, Embedded Instrumentation and Test Equipment, Security and Access Control Panels, Set-Top Box and Consumer Display Firmware.
Automotive ECU Boot Code Storage
The M29F800FT55M3E2 fits automotive ECU boot storage because its Auto Grade 3 rating guarantees operation from -40C to +125C and its top boot block keeps reset vectors in a protected sector. In a 5V ECU, the 512K x 16 array is mapped to the MCU external bus for execute-in-place booting, with the 55 ns access time supporting zero-wait-state fetches. The embedded program/erase controller and 100,000 cycle endurance allow safe field firmware updates, and erase suspend lets the CPU service interrupts during reflashing.
Recommended
Industrial Control and PLC Systems
In PLC and motor-drive controllers, the M29F800FT55M3E2 stores control firmware on legacy 5V buses where its single 5V supply removes level-shifting complexity. The 55 ns parallel access keeps scan-cycle code execution deterministic, while the -40C to +125C range tolerates cabinet temperature extremes. Automatic standby reduces system quiescent power during idle periods. Designers place the device on the MCU external memory interface with embedded byte/word programming handling all Flash timing internally, freeing the host CPU from managing program algorithms.
Recommended
Telecom Line Cards
Telecom line cards use the M29F800FT55M3E2 to hold boot and diagnostics code that must be resident at power-up. The 8 Mbit capacity covers a bootloader plus a compressed application image, and the electronic signature feature lets the card firmware query the device identity during POST self-test. The 44-SO surface-mount package supports automated assembly on dense cards, and erase suspend/resume allows in-field image updates while the card continues servicing traffic from unaffected blocks of the array.
Recommended
Embedded Instrumentation and Test Equipment
Bench instruments and data acquisition systems deploy the M29F800FT55M3E2 for firmware and calibration table storage. NOR random-access behavior lets the processor fetch lookup tables byte-by-byte with 55 ns latency, and the 100,000 cycle per block endurance accommodates periodic calibration rewrites. The -40C to +125C rating covers unheated test fixtures, while automatic standby trims power in battery-operated portable instruments. Erase suspend ensures display refresh or communication tasks proceed uninterrupted during a block erase.
Recommended
Security and Access Control Panels
Access control and alarm panels benefit from the M29F800FT55M3E2's nonvolatile code storage and top boot block protection, which shields the security bootloader from accidental overwrite during field updates of application code. Operation on a 5V rail matches the discrete logic commonly used in panel electronics, and the wide -40C to +125C range suits outdoor-rated enclosures. The 512K x 16 organization supports event log buffers and multiple credential databases alongside the main application image on one device.
Recommended
Set-Top Box and Consumer Display Firmware
Consumer set-top boxes and display controllers historically used the M29F800FT55M3E2 to hold boot ROM and firmware images. The 5V-tolerant parallel interface integrates directly with legacy 16-bit host processors, and the top boot block ensures the reset vector image is isolated. Embedded program algorithms permit USB or network firmware upgrades without external programming voltage. Designers pair the NOR with serial Flash for user settings, keeping frequently rewritten data off the endurance-limited NOR blocks to preserve the 100,000 cycle lifetime.
Recommended
Recommended Products Summary
Engineering reference data for M29F800FT55M3E2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | M29F800FB55M3E2 | M29F800FT70M3E2 | M29F800FB70M3E2 |
|---|---|---|---|---|
| Package | 44-SO (SOP) | 44-SO (SOP) - same | 44-SO (SOP) - same | 44-SO (SOP) - same |
| Brand | Micron Technology | Micron Technology | Micron Technology | Micron Technology |
| Density | 8 Mbit (512K x 16) | 8 Mbit (512K x 16) | 8 Mbit (512K x 16) | 8 Mbit (512K x 16) |
| Access Time | 55 ns | 55 ns | 70 ns | 70 ns |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| Boot Block Location | Top boot | Bottom boot | Top boot | Bottom boot |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| Program/Erase Cycles | 100,000 per block | 100,000 per block | 100,000 per block | 100,000 per block |
Key Differentiators
- Fastest grade in the M29F800 44-SO family (vs M29F800FT70M3E2)
- Top boot block protects reset vectors (vs M29F800FB55M3E2)
- Automotive temperature range in a RoHS package (vs M29F800FB70M3E2)
Design Notes
With a 55 ns access time, the external bus timing budget is tight: address setup, CE# assertion, and data capture must all fit within the microcontroller wait-state configuration. Keep address and data bus traces under approximately 10 cm where possible, and series-terminate (~22 to 33 ohm) long lines to control ringing. Verify setup and hold margins across the -40C to +125C range using datasheet worst-case timing, not typical values.
Selecting the wrong boot block variant is the most common substitution error: M29F800FT (top boot) and M29F800FB (bottom boot) share the same pinout but place the protected sector at opposite ends of the address map. Firmware that assumes a top boot layout will jump to invalid code on an FB part. Always confirm the boot position against your bootloader's address assumptions before qualifying a replacement.
The device runs from a single 5V rail shared by read and program/erase operations. Provide adequate decoupling (at least 0.1 uF ceramic at VCC pins plus bulk capacitance) because program/erase operations draw transient currents that can disturb other 5V logic on the same rail. Verify the 5V regulator can support the erase peak current during firmware field updates while the rest of the system is active.
Compliance Information
RoHS compliance indicated by the E suffix in the ordering code per the Micron part numbering decoder. AEC-Q100 qualification status not explicitly stated in provided data; the Auto Grade 3 (125C) rating supports automotive temperature requirements.
