M29F160FT55N3F2 - 16Mbit 5V 55ns NOR Flash | Micron Technology
MPN: M29F160FT55N3F2 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.9 | $6.90 |
| 10 | $6.35 | $63.50 |
| 100 | $5.75 | $575.00 |
| 500 | $5.3 | $2,650.00 |
| 1,000 | $4.9 | $4,900.00 |
M29F160FT55N3F2 Overview
Parallel NOR Flash is a nonvolatile memory technology in which data is read over a parallel address and data bus at random access speeds, making it part of the memory IC hierarchy: Flash memory -> nonvolatile semiconductor memory -> memory IC. Unlike serial NOR (SPI) Flash, parallel NOR provides direct byte or word addressing with no serial protocol overhead, which is why it has historically been the dominant choice for processor boot code storage.
Key features of the M29F160FT55N3F2 include the 55 ns access time, an embedded program and erase controller that runs automatic byte or word program and block erase algorithms, block protection for boot code security, and common Flash interface (CFI) support for software discovery of device geometry. The top boot block architecture (FT suffix) places the protected boot blocks at the top of the address map.
Technically, the device uses a single-supply 5 V program/erase architecture typical of the M29F family (inherited from Numonyx Memory Solutions / STMicroelectronics lineage), eliminating the need for a separate 12 V programming supply. Asynchronous timing means no clock is required; reads are controlled simply by address, chip enable, and output enable, simplifying interfacing to microcontrollers and microprocessors with external memory buses.
Typical applications include boot code storage for industrial microcontroller systems, embedded control boards, telecom and networking line cards, and legacy 5V industrial equipment maintenance where a mature, proven 16 Mbit parallel NOR is required.
Design consideration: verify block size and boot block location against your linker map before substitution, because the FB (bottom boot) variant of the same family is pin-compatible but places protected blocks at the bottom of the map.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with price data as of 2026-09-05.
Drop-in alternatives for M29F160FT55N3F2 — 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 M29F160FT55N3F2 (same form factor and footprint) — differing in Organization, Memory Type, Package, Density, Packaging.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
M29F160FB55N3F2
✅ Drop-In✓ In Stock
$5.6 / Unit
View Datasheet →M29F160FT70N3F2
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
M29F160FB70N3F2
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
M29F160FT5AN6T2
✅ Drop-In📋 Reference alternative (not in catalog)
M29F160FT55N3E2
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →M29F160FT55N3F2 Specifications
| Memory Type | NOR Flash (Parallel, Asynchronous) |
| Density | 16 Mbit (16777 kbits) |
| Organization | 1M x 16 / 2M x 8 |
| Number of Words | 1000 k |
| Bits per Word | 16 bits |
| Access Time | 55 ns |
| Supply Voltage (VCC) | 5 V (operating 4.5 V) |
| Interface | Parallel |
| Synchronous / Asynchronous | Asynchronous |
| Boot Block Location | Top boot block (FT) |
| Operating Temperature | -40C to +125C |
| Package | 48-Pin TSOP |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel |
| Program / Erase | Embedded byte/word program algorithms (controller on-chip) |
M29F160FT55N3F2 48-pin tsop Pin Configuration Guide
Pin configuration for M29F160FT55N3F2 (48-pin tsop 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 M29F160FT55N3F2.
Refer to the datasheet for full pin configuration.
Typical Applications
M29F160FT55N3F2 is suitable for 6 applications: Boot Code Storage for Industrial Microcontrollers, Telecom and Networking Line Cards, Legacy 5V Equipment Maintenance and Repair, Embedded Control and Automation Boards, Test and Measurement Instrument Firmware, Automotive-Adjacent and Harsh-Environment Electronics.
Boot Code Storage for Industrial Microcontrollers
The M29F160FT55N3F2 is a natural fit for boot code storage in 5V industrial microcontroller systems because its 55 ns asynchronous read speed allows processors to fetch reset vectors directly from Flash with zero wait states or minimal wait states on typical 5V external buses. The top boot block architecture places protected boot blocks at the top of the map, where most processors reset, and block protection prevents accidental corruption of the boot image. Because the device is fully asynchronous, no clock configuration is needed - the bus master simply drives address, chip enable, and output enable. In repair and sustaining-engineering of existing industrial boards, this 5V NOR slots directly into the original footprint without level shifting or supply redesign.
Recommended
Telecom and Networking Line Cards
Legacy telecom and networking line cards frequently used 5V parallel NOR for firmware and parameter storage, and the M29F160FT55N3F2 matches that requirement with 16 Mbit capacity - enough for a redundant firmware image plus configuration data. The -40C to +125C rating covers telecom outdoor cabinets and unconditioned equipment rooms. The 55 ns access time supports the deterministic read timing these designs assume, and the embedded program/erase controller lets in-field firmware updates run autonomously without CPU-polled program loops. The ready/busy output further simplifies update supervision in systems where the CPU must service other tasks during flash writes, and CFI support allows software to discover block geometry at runtime.
Recommended
Legacy 5V Equipment Maintenance and Repair
For MRO (maintenance, repair, overhaul) of legacy 5V industrial, medical, and test equipment, the M29F160FT55N3F2 is often the exact original-design part, avoiding any requalification. Its 5V-only architecture means no new rails, no level shifters, and identical bus timing to the failed component being replaced. Distributor channels including Octopart (5 distributors), Octatronics (2,590 units listed), and Ampheo keep limited stock of this mature MPN as of 2026-09-05, making targeted procurement feasible. When the 55 ns grade is unavailable, the 70 ns same-family grade drops in electrically, needing only a worst-case read-timing check. This continuity across the ST-to-Numonyx-to-Micron brand transitions is a key reason it remains specified.
Recommended
Embedded Control and Automation Boards
PLC I/O modules, motor control boards, and factory automation controllers built around 5V external-memory-bus processors benefit from the M29F160FT55N3F2's combination of 55 ns random access, 16 Mbit density, and hardware block protection. In automation environments with electrical noise and brownouts, 5V logic offers superior noise margin versus 3V alternatives, and the block-protected boot sectors survive firmware crashes and power interruptions during field updates. The device's asynchronous interface keeps the memory subsystem simple and auditable for functional-safety reviews. Its -40C to +125C industrial rating covers control-cabinet temperature extremes, and the embedded program/erase controller guarantees compliant program/erase timing independent of firmware scheduling jitter.
Recommended
Test and Measurement Instrument Firmware
Bench instruments, data loggers, and handheld testers frequently store calibration constants, FPGA configuration, and application firmware in parallel NOR. The M29F160FT55N3F2's 1M x 16 organization suits 16-bit buses common in these designs, and its 55 ns access time supports fast POST-time code execution. Calibration tables written during manufacturing benefit from the byte-level programming granularity of the embedded controller, while block protection guards calibration sectors against accidental overwrite during field firmware updates. The CFI interface lets instrument firmware enumerate block geometry at boot, simplifying firmware updates across hardware revisions that use different density variants of the same M29F family.
Recommended
Automotive-Adjacent and Harsh-Environment Electronics
While this device is not AEC-Q100 qualified, its -40C to +125C operating range makes it suitable for harsh-environment industrial and off-highway electronics that follow similar thermal profiles without automotive qualification paperwork. In 12V/24V vehicles and machinery, 5V subsystems derived from the battery rail tolerate load-dump transients better than lower-voltage logic, and the parallel NOR's 55 ns access keeps boot code execution responsive after cold crank. Designers must implement their own qualification and protection strategy (TVS, supply supervision) since compliance must be verified per program. The 48-pin TSOP with standard gull-wing leads supports standard reflow assembly and inspection processes.
Recommended
Recommended Products Summary
Engineering reference data for M29F160FT55N3F2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | M29F160FB55N3F2 | M29F160FT70N3F2 | M29F160FB70N3F2 | M29F160FT5AN6T2 |
|---|---|---|---|---|---|
| Package | 48-Pin TSOP | 48-Pin TSOP - same | 48-Pin TSOP - same | 48-Pin TSOP - same | 48-Pin TSOP - same |
| Brand | Micron Technology | Micron Technology | Micron Technology | Micron Technology | Micron Technology |
| Density | 16 Mbit | 16 Mbit | 16 Mbit | 16 Mbit | 16 Mbit |
| Boot Block Location | Top boot (FT) | Bottom boot (FB) | Top boot (FT) | Bottom boot (FB) | Top boot (FT) |
| Supply Voltage | 5 V (4.5 V min operating) | 5 V | 5 V | 5 V | 5 V |
Key Differentiators
- Fastest grade in the 16 Mbit family (vs M29F160FT70N3F2)
- Top boot block placement for processors that vector at top of map (vs M29F160FB55N3F2)
- Single 5V supply eliminates programming voltage rail (vs Older 12V-program NOR generations)
- Continuous family lineage across ST, Numonyx, and Micron (vs Cross-brand parallel NOR equivalents)
Design Notes
Verify boot block location before any substitution. The FT (top boot) and FB (bottom boot) variants are pin-to-pin identical in the 48-pin TSOP, so a wrong suffix will pass visual inspection and even read data - but the processor will fetch its reset vector from unprogrammed blocks. Always cross-check the linker map: if the reset vector points at the top of the address map, only FT variants work. This single suffix error is the most common field failure mode in the M29F160 family.
The 55 ns access time leaves little timing margin at higher bus clocks. Estimated: at 16 MHz with zero wait states, a full read cycle consumes 62.5 ns; adding address/setup skews and output-enable access (which is longer than address access on parallel NOR), you should budget wait states or confirm CE#-to-output and OE#-to-output times from the datasheet AC tables against your bus timing. Keep address bus traces matched within reason and add series termination (22-33 ohm) on long buses to control ringing on the 5V CMOS edges.
Use a 0.1 uF ceramic decoupling capacitor at each VCC pin of the TSOP-48 package, placed within a few millimeters of the pins, plus a 4.7 uF-10 uF bulk capacitor per device. Program and erase currents are significantly higher than read currents, so size the 5V rail regulator for the datasheet program/erase ICC figure, not just the read figure, especially when multiple banks of Flash update simultaneously during field firmware upgrades. Tie the reset/business pin properly per the datasheet so the device returns to read mode cleanly after brownouts.
The 48-pin TSOP (0.5 mm pitch) requires attention to solder-paste stencil design: use reduced aperture openings on the fine-pitch pads to avoid bridging, and follow the MSL handling requirements from the packing label between dry storage and reflow. For sustaining repairs, note that the leads are gull-wing and can be reworked with a standard hot-air nozzle, but repeated rework cycles degrade lead finish - limit to two cycles per site.
Compliance Information
The N3F2 ordering suffix is generally associated with lead-free packing options in the Micron M29F numbering scheme, but explicit RoHS/REACH compliance status was not stated in the retrieved web data and must be confirmed on the official Micron product page or product stec sheet.
