M29F800FT55N3E2 - 8Mb 5V Parallel NOR Flash 55ns | Micron
MPN: M29F800FT55N3E2 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 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 |
Drop-in alternatives for M29F800FT55N3E2 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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M29F800FT55N3E2
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View Datasheet βM29F800FT55N3E2 Maximum Ratings & Electrical Characteristics
| Memory Type | NOR Flash |
| Memory Organization | 512K x 16 (8 Mbit) |
| Density | 8389 kbits |
| Access Time | 55 ns |
| Supply Voltage | 5 V |
| Interface | Parallel |
| Boot Block Architecture | Top Boot Block |
| Operating Temperature | -40C to +125C |
| Package | 48-TSOP I |
| Mounting Type | 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 Status | Compliant (E suffix = lead-free/RoHS) |
M29F800FT55N3E2 Pin Configuration
| Pin 1 | A15 β Address input 15 |
| Pin 2 | A16 β Address input 16 |
| Pin 3 | NC β Not connected (per datasheet) |
| Pin 4 | VSS β Ground |
| Pin 5 | NC β Not connected (per datasheet) |
| Pin 6 | A17 β Address input 17 |
| Pin 7 | A18 β Address input 18 |
| Pin 8 | NC β Not connected (per datasheet) |
| Pin 9 | DQ14 β Data input/output 14 |
| Pin 10 | DQ15/A-1 β Data I/O 15; address A-1 in byte mode |
| Pin 11 | VCC β 5V power supply |
| Pin 12 | RP# β Reset / deep power-down, active low |
| Pin 13 | BYTE# β Byte/word width select, active low = byte mode |
| Pin 14 | VSS β Ground |
| Pin 15 | DQ7 β Data input/output 7 |
| Pin 16 | DQ6 β Data input/output 6 (toggle bit status) |
| Pin 17 | DQ5 β Data input/output 5 (program/erase timeout status) |
| Pin 18 | DQ4 β Data input/output 4 |
| Pin 19 | DQ3 β Data input/output 3 |
| Pin 20 | DQ2 β Data input/output 2 |
| Pin 21 | DQ1 β Data input/output 1 |
| Pin 22 | DQ0 β Data input/output 0 |
| Pin 23 | OE# β Output enable, active low |
| Pin 24 | VSS β Ground |
| Pin 25 | A0 β Address input 0 |
| Pin 26 | A1 β Address input 1 |
| Pin 27 | A2 β Address input 2 |
| Pin 28 | A3 β Address input 3 |
| Pin 29 | A4 β Address input 4 |
| Pin 30 | A5 β Address input 5 |
| Pin 31 | A6 β Address input 6 |
| Pin 32 | A7 β Address input 7 |
| Pin 33 | A8 β Address input 8 |
| Pin 34 | A9 β Address input 9 |
| Pin 35 | A10 β Address input 10 |
| Pin 36 | A11 β Address input 11 |
| Pin 37 | A12 β Address input 12 |
| Pin 38 | A13 β Address input 13 |
| Pin 39 | A14 β Address input 14 |
| Pin 40 | CE# β Chip enable, active low |
| Pin 41 | VSS β Ground |
| Pin 42 | WE# β Write enable, active low |
| Pin 43 | VCC β 5V power supply |
| Pin 44 | NC β Not connected (per datasheet) |
| Pin 45 | NC β Not connected (per datasheet) |
| Pin 46 | RB#/NC β Ready/busy output (family-dependent; verify against datasheet) |
| Pin 47 | NC β Not connected (per datasheet) |
| Pin 48 | NC β Not connected (per datasheet) |
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
M29F800FT55N3E2 is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for M29F800FT55N3E2 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
| Operating Temperature | -40C to +125C | -40C to +125C | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| RoHS / Lead-Free | Compliant (E suffix) | Compliant (E suffix) | Compliant (E suffix) | Compliant (E suffix) | Compliant (E suffix) |
| Second Source Availability | Alliance Memory (same MPN) | Micron (same MPN) | Alliance Memory equivalent exists | Alliance Memory equivalent exists | [DATA_NEEDED] |
Key Differentiators
- 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)
Design Notes
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.
Compliance Information
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.
