M29W800FB70N3F - 8Mb Parallel NOR Flash 70ns TSOP-48 | Micron
MPN: M29W800FB70N3F ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.26 | $1.26 |
| 10 | $1.18 | $11.80 |
| 100 | $1.1 | $110.00 |
| 500 | $1 | $500.00 |
| 1,000 | $0.91 | $910.00 |
Drop-in alternatives for M29W800FB70N3F — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
M29W800FT70ZA3SE
✅ Drop-In✓ In Stock
$1.38 / Unit
View Datasheet →M29W160FB70N3E
✅ Drop-In✓ In Stock
$3.58 / Unit
View Datasheet →M29W160EB70N3E
✅ Drop-In✓ In Stock
$1.76 / Unit
View Datasheet →MX26LV800ABTC-70
✅ Drop-In📋 Reference alternative (not in catalog)
AT49BV802A-70TI
✅ Drop-In📋 Reference alternative (not in catalog)
M29W800FB70N3F Maximum Ratings & Electrical Characteristics
| Density | 8 Mbit |
| Organization | 512K x 16 / 1M x 8 |
| Access Time | 70 ns |
| Supply Voltage (VCC) | 2.7 V to 3.6 V |
| Interface Type | Parallel |
| Memory Type | NOR Flash (Boot Block) |
| Boot Block Location | Bottom |
| Block Count | 19 memory blocks (1 boot, 3 parameter, 15 main) |
| Bus Width Selection | x8 / x16 via BYTE# pin |
| Programming Time | 10 us per byte/word (typical) |
| CFI Compliant | Yes |
| Erase Suspend/Resume | Yes |
| Package | TSOP-48 (12 x 20 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Packaging | Tape & Reel |
M29W800FB70N3F tsop-48 (12 x 20 mm) Pin Configuration Guide
Complete pinout information for M29W800FB70N3F (tsop-48 (12 x 20 mm) 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 M29W800FB70N3F.
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
M29W800FB70N3F is suitable for 6 applications: Set-Top Box Boot Firmware, Automotive Instrument Clusters, Industrial PLC and Motor Control, Networking Equipment Boot Storage, Printer and Office Equipment Controllers, Embedded Control and Metering.
Set-Top Box Boot Firmware
The M29W800FB70N3F fits set-top box designs that store boot code and low-level firmware in parallel NOR Flash executed in place (XIP). Its 70 ns access time allows the host SoC to fetch reset vectors and initialization code directly without deep wait states, while the 8 Mbit density accommodates bootloader plus configuration images. The bottom boot block places the small, frequently-protected 16 Kbyte boot sector at address 0, and the embedded program/erase controller with erase suspend lets the CPU read parameter blocks while a main block erase runs in the background. The 2.7V to 3.6V single supply simplifies power design around a common 3.3V rail.
Recommended
Automotive Instrument Clusters
Mouser lists the M29W800FB70N3F as automotive grade, making it suitable for instrument clusters and body electronics that store calibration data and boot firmware. The 3V parallel interface connects directly to automotive MCUs, and the 70 ns access time supports deterministic code execution at startup. The RP# reset pin guarantees a defined memory state during vehicle power transients, and the x8/x16 selectable bus width lets one board design serve multiple MCU variants. The RoHS-compliant TSOP-48 package withstands standard automotive reflow assembly. Designers should validate qualification level against program requirements and reserve the boot block from in-field erase cycles to protect reset code integrity over vehicle lifetime.
Recommended
Industrial PLC and Motor Control
In industrial programmable logic controllers and motor drive boards, the M29W800FB70N3F stores firmware and parameter tables on the processor's parallel bus. The 8 Mbit density covers bootloader plus ladder-logic interpreter code, and CFI compliance lets software query block geometry generically across the Micron/ST NOR family, easing firmware portability between 8 Mbit and 16 Mbit variants. Unlock bypass programming accelerates firmware updates during production batch flashing, and erase suspend/resume lets the application service interrupts and read look-up tables while blocks erase. The 2.7V to 3.6V supply range tolerates industrial 3.3V rail tolerance, and the TSOP-48 footprint enables drop-in migration within the same family.
Recommended
Networking Equipment Boot Storage
Switches, routers, and modems commonly keep boot ROM and MAC/PHY configuration in parallel NOR Flash, where the M29W800FB70N3F provides 8 Mbit on a 16-bit bus at 70 ns. Executed-in-place boot code removes the need for a code-copy RAM stage at power-on, shortening link-up time. The 19-block architecture separates the protected boot block, three parameter blocks for configuration, and fifteen main blocks for firmware, enabling A/B firmware update schemes. Erase suspend ensures management CPU access during firmware upgrades. The bottom boot map suits network processors with reset vectors at address zero; the top-boot family variant covers the alternative convention without PCB change.
Recommended
Printer and Office Equipment Controllers
Laser printers and multifunction devices store engine-controller firmware in parallel NOR such as the M29W800FB70N3F. The 70 ns access time sustains real-time page-processing code execution from Flash, while the 8 Mbit capacity holds boot code, fonts metadata, and engine parameters. CFI compliance allows one firmware flash driver to manage multiple densities across a printer product line, and the unlock bypass command shortens factory image programming to near the 10 us/word hardware limit, reducing production test time. The single 3V supply and RoHS-compliant TSOP-48 package integrate cleanly into office-equipment power and assembly flows, with the RP# pin providing deterministic reset during paper-jam recovery power events.
Recommended
Embedded Control and Metering
Smart meters, building controllers, and white-goods electronics use the M29W800FB70N3F for boot and calibration firmware. The bottom boot block isolates reset code from frequently rewritten logs, and the hardware block protection on the boot sector prevents accidental corruption of metrology constants during field updates. The x8 mode supports 8-bit MCUs common in cost-sensitive metering platforms, while the 2.7V supply floor supports battery-assisted designs near end-of-life. Embedded program/erase algorithms remove timing software burden from small RTOS footprints. With 1000-piece pricing near $0.91 as of 2026-09-04, the device also offers an attractive cost point for high-volume consumer-embedded deployments.
Recommended
Recommended Products Summary
Engineering reference data for M29W800FB70N3F — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | M29W800FT70ZA3SE | M29W160FB70N3E | MX26LV800ABTC-70 | AT49BV802A-70TI |
|---|---|---|---|---|---|
| Package | TSOP-48 (12 x 20 mm) | TSOP-48 - same | TSOP-48 - same | TSOP-48 - same | TSOP-48 - same |
| Brand | Micron Technology | Micron Technology | Micron Technology | Macronix | Microchip Technology (Atmel) |
| Density | 8 Mbit | 8 Mbit | 16 Mbit | 8 Mbit | 8 Mbit |
| Access Time | 70 ns | 70 ns | 70 ns | 70 ns | 70 ns |
| Boot Block Location | Bottom | Top | Bottom | [DATA_NEEDED] | [DATA_NEEDED] |
| Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.65 V to 3.6 V |
| Erase Suspend/Resume | Yes | Yes | Yes | Yes | Yes |
| Automotive Grade | Yes (per Mouser listing) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Bottom boot block matches address-0 reset vector processors (vs M29W800FT70ZA3SE)
- Same-family 16 Mbit upgrade path on the same PCB (vs M29W160FB70N3E)
- ST/Micron block architecture vs Atmel architecture (vs AT49BV802A-70TI)
Design Notes
Route the BYTE# pin to a pull-up or processor GPIO, not directly to VCC or GND, so the same PCB can ship in either x8 or x16 configurations. Keep the RP# line controllable by the host CPU (not hard-wired high) - driving RP# low during power-up transients places the device in reset/power-down and prevents spurious program or erase commands from bus glitches, which is the most common cause of corrupted boot blocks in the field.
Decouple VCC and VCCQ with 0.1 uF ceramic capacitors at the package plus a 4.7 uF to 10 uF bulk capacitor near the device. Program and erase currents are pulsed and higher than read current; inadequate bulk capacitance on the 3.3V rail can cause brown-out resets of the MCU during block erase. Confirm that the 2.7V minimum supply is not violated at the pins during worst-case erase current surges.
Verify boot block position before layout sign-off: the FB (bottom boot) variant in this part number places reset vectors at low addresses, but the FT (top boot) variant is otherwise identical and pin-compatible. Mixing them silently reverses the vector map. Also confirm the firmware driver matches the ST/Micron command set - substituting an Atmel-architecture part such as AT49BV802A-70TI requires software revalidation even though the package is identical.
Compliance Information
Distributor spec page states 'RoHS compliant, plastic, TSOP-48'. Mouser listing identifies the part as Automotive-grade; specific AEC-Q100 qualification status not stated in provided data.
