M29W800FT70N3E - 8Mbit 70ns Parallel NOR Flash | Micron
MPN: M29W800FT70N3E ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.95 | $29.50 |
| 100 | $2.6 | $260.00 |
| 500 | $2.3 | $1,150.00 |
| 1,000 | $2.05 | $2,050.00 |
Drop-in alternatives for M29W800FT70N3E — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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M29W800FT7AN3F
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M29W800FB70N3E
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View Datasheet →M29F800FT55N3E2
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View Datasheet →M29W400FT55N3E
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View Datasheet →M29W320DT70N3F
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View Datasheet →M29W128GL70N3E
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View Datasheet →M29W800FT70N3E Maximum Ratings & Electrical Characteristics
| Memory Type | NOR Flash (Parallel) |
| Density | 8 Mbit |
| Organization | 1M x 8 / 512K x 16 |
| Access Time | 70 ns |
| Supply Voltage (VCC) | 2.7 V to 3.6 V |
| Programming / Erase Supply | Single supply at VCC (2.7 V to 3.6 V) |
| Boot Block Location | Top boot block (FT variant) |
| Bus Width | 8-bit or 16-bit (BYTE pin selectable) |
| Interface | Parallel, address/data bus |
| Operating Temperature | -40C to +125C |
| Package | 48-TSOP I (12 x 20 mm, 0.5 mm pitch) |
| Mounting Type | Surface Mount |
M29W800FT70N3E 48-tsop i (12 x 20 mm, 0.5 mm pitch) Pin Configuration Guide
Complete pinout information for M29W800FT70N3E (48-tsop i (12 x 20 mm, 0.5 mm pitch) 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 M29W800FT70N3E.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
M29W800FT70N3E is suitable for 6 applications: Boot Code Storage in Industrial Controllers, Set-Top Box and Router Firmware Memory, Automotive Body Electronics and Instrumentation, Legacy Telecom Line Card Firmware, Test and Measurement Instrument Storage, Embedded Systems Retrofit and EOL Substitution.
Boot Code Storage in Industrial Controllers
PLCs, motor drives, and industrial controllers require a deterministic, byte-addressable code memory that the CPU can execute from immediately after reset. The M29W800FT70N3E fits this role with its 70 ns access time, which supports zero-wait-state reads on many 3.3 V processor buses, and its single 2.7 V to 3.6 V supply that simplifies power sequencing in industrial 3.3 V rails. The top boot block (FT architecture) places bootloader code at the top of the 8 Mbit map where the CPU begins fetching, and hardware block protection prevents accidental erasure of the boot image by application firmware updates. Its -40C to +125C rating covers factory-floor temperature extremes, and the x8/x16 selectable bus width lets one firmware toolchain serve both 8-bit and 16-bit controller variants on the same PCB footprint.
Recommended
Set-Top Box and Router Firmware Memory
Network routers, modems, and set-top boxes traditionally store bootloader and recovery firmware in parallel NOR Flash because the code must be executable in place (XIP) before DRAM initialization. The M29W800FT70N3E provides 8 Mbit (512K x 16) of XIP-capable storage with a 70 ns access time, fast enough for common 3.3 V embedded CPUs without wait states. The 2.7 V to 3.6 V supply range tolerates rail sag common in consumer power supplies, while the 48-TSOP I package fits legacy board layouts. Command-set program/erase at VCC eliminates a separate programming rail, and block-level protection secures the bootloader partition when the end user performs over-the-air updates to the main firmware image stored elsewhere.
Recommended
Automotive Body Electronics and Instrumentation
Instrument clusters, body control modules, and gateway ECUs store calibration data and boot firmware in nonvolatile parallel memory rated for automotive temperature spans. The M29W800FT70N3E operates from -40C to +125C per the family ordering information, matching the -40C to +85C and +125C interior/under-hood requirements of many body-electronics modules. Its 2.7 V to 3.6 V single-supply operation aligns with automotive 3.3 V logic rails, and the 70 ns access time supports direct memory-mapped code and parameter reads. Hardware boot-block protection safeguards calibration images against corruption during low-voltage cranking events, while the x8/x16 selectable bus lets the same part serve both 8-bit and 16-bit microcontroller buses across platform derivatives.
Recommended
Legacy Telecom Line Card Firmware
Telecom line cards, backplane controllers, and DSL access equipment designed in the STMicroelectronics/Numonyx era specified the M29W800 in the 48-TSOP I footprint for bootloader and configuration storage. The M29W800FT70N3E is a maintenance-replacement part for these sockets: it preserves the M29W command set, the 70 ns timing budget, and the exact 8 Mbit top-boot memory map, so no driver or firmware changes are needed when replacing aging stock. The parallel interface retains deterministic access latency required for in-service diagnostics, and the 2.7 V to 3.6 V supply range is compatible with the 3.3 V rails used throughout telecom shelves. Using the Findchips-cross-referenced M29W800FT7AN3F alongside this part gives buyers a second qualified source for line-card sustaining programs.
Recommended
Test and Measurement Instrument Storage
Oscilloscopes, multimeters, and bench power supplies store boot firmware, calibration constants, and user settings in parallel NOR Flash. The M29W800FT70N3E suits these designs with its 8 Mbit capacity (enough for a bootloader plus parameter blocks), 70 ns access time that keeps power-up calibration reads fast, and -40C to +125C operation for unconditioned lab and field environments. The BYTE pin allows x8 access for serial-configuration-style reads and x16 access for code execution, giving instrument firmware flexibility in how it partitions the array. Hardware block protection prevents accidental erasure of the calibration sector during firmware field updates, a common failure mode in instruments that reprogram their settings partition in service.
Recommended
Embedded Systems Retrofit and EOL Substitution
When a legacy PCB based on the STMicroelectronics/Numonyx M29W800 loses its original source, the Micron M29W800FT70N3E serves as the continuity part: it was produced on the same acquired production line with the same command set, 70 ns timing, top-boot map, and 48-TSOP I footprint. This makes it an end-of-life substitution for obsolete M29W800 order codes without PCB redesign. Its single 2.7 V to 3.6 V supply and standard parallel interface also let design teams requalify it on boards that originally used 5 V flash families by simply confirming 3.3 V bus compatibility. Pairing it with the cross-referenced M29W800FT7AN3F provides dual-channel sourcing for long-lifetime industrial and medical equipment sustaining programs.
Recommended
Recommended Products Summary
Engineering reference data for M29W800FT70N3E — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | M29W800FT7AN3F | M29W800FB70N3E | M29F800FT55N3E2 | M29W400FT55N3E | M29W320DT70N3F |
|---|---|---|---|---|---|---|
| Package | 48-TSOP I | 48-TSOP I - same | 48-TSOP I - same | 48-TSOP I - same | 48-TSOP I - same | 48-TSOP I - same |
| Brand | Micron Technology | Numonyx Memory Solutions | Micron Technology | Micron Technology | Micron Technology | Micron Technology |
| Density | 8 Mbit | 8 Mbit | 8 Mbit | 8 Mbit | 4 Mbit | 32 Mbit |
| Access Time | 70 ns | 70 ns | 70 ns | 55 ns | 55 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 | [DATA_NEEDED] | 2.7 V to 3.6 V | 2.7 V to 3.6 V |
| Boot Block Location | Top boot block (FT) | Top boot block | Bottom boot block (FB) | Top boot block (FT) | Top boot block (FT) | Top boot block (DT) |
| Bus Organization | x8 / x16 | x8 / x16 | x8 / x16 | x8 / x16 | x8 / x16 | x16 |
| Unit Price (qty 1) | ~USD 3.20 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Single-supply 2.7 V-3.6 V program/erase (vs M29F800FT55N3E2)
- Top boot block for XIP boot maps (vs M29W800FB70N3E)
- Dual-source die heritage (vs M29W800FT7AN3F)
- Wide -40C to +125C operating range (vs M29W400FT55N3E)
Design Notes
The 48-TSOP I package uses a 0.5 mm lead pitch in a 12 x 20 mm body. Specify a land pattern matching the datasheet recommended footprint and use a reflow profile per Micron packing/handling documentation; the thin TSOP body is moisture-sensitive, so observe the MSL floor-life requirement and bake per J-STD-033 if the dry-pack bag is opened. Keep a silkscreened pin-1 marker aligned to the beveled corner of the package to prevent 180-degree misinsertion during rework.
At the 70 ns access grade, address and data bus round-trip delays plus CPU setup time must remain within the timing budget. Estimated: with a typical 20-30 ns CPU access-cycle allowance, keep bus trace lengths matched and add 22-33 ohm series termination on rising-edge address lines when bus length exceeds about 15 cm. Pull the BYTE pin firmly to the correct rail through a resistor (not left floating) to avoid bus contention on Q15/A-1 during x8 mode operation.
Two recurring field failures with this part: (1) substituting the FB bottom-boot variant without re-addressing firmware - the boot code will not be found because the protected boot blocks sit at the opposite end of the array; (2) ignoring status-bit polling during program/erase - issuing a read or command before the cycle completes corrupts data. Always poll the status bits after each program/erase command and enforce the datasheet block-erase timeout in software. Verify WP#/protection pin strapping so production programming fixtures can modify protected blocks only when intended.
Compliance Information
Compliance statements for this exact ordering code were not present in the captured web data. Verify RoHS/REACH status from Micron material declarations on the official product page. AEC-Q100 qualification not stated; -40C to +125C operating range is documented in the family ordering information.
