M25P20-VMN3TPB - 2Mb SPI NOR Flash 75MHz SOIC-8 | Micron
MPN: M25P20-VMN3TPB ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.11 | $1.11 |
| 10 | $1.05 | $10.50 |
| 100 | $0.95 | $95.00 |
| 500 | $0.88 | $440.00 |
| 1,000 | $0.8 | $800.00 |
M25P20-VMN3TPB Overview
Serial NOR Flash is a nonvolatile memory category that stores code and data electrically and reads them out over a serial peripheral interface (SPI). In the system memory hierarchy it sits below DRAM and parallel NOR: it holds firmware, boot code, configuration bitstreams, and calibration tables that must survive power loss, trading parallel bandwidth for a minimal pin count and tiny footprint. SPI NOR is the de facto standard for boot memory in microcontroller, FPGA, and SoC platforms.
Key features of the M25P20 include 75 MHz clock support for high-performance read commands, 2 Mbit density organized as 4 sectors of 512 Kbit each, sector erase in 0.6 s typical and bulk erase in 3 s typical, and advanced write-protection mechanisms. The -40C to +125C operating range supports industrial and automotive-adjacent environments, and product longevity commitments apply.
Architecturally, the device uses a single-level NOR cell array addressed via SPI commands, with write-enable latching, status register polling, and hardware/software protection schemes preventing accidental program or erase. The VMN3 speed grade runs the full 75 MHz command set over the industrial temperature range.
Typical applications include FPGA configuration storage, boot code memory for embedded processors, parameter and calibration storage in industrial drives, and firmware storage in networking and consumer equipment.
Design consideration: keep the SPI clock and data traces short, place a 0.1 uF decoupling capacitor directly at the VCC pin, and respect the hold and write-protect pin states during power ramp-up to prevent spurious writes.
This page synthesizes distributor pricing, same-family drop-in alternatives, pinout, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for M25P20-VMN3TPB — 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 M25P20-VMN3TPB (same form factor and footprint) — differing in Supply Voltage, Package, Memory Size, Organization, Write Protection.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
M25P40-VMN3TPB
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.64 / Unit
View Datasheet →M25P16-VMN3TPB
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.63 / Unit
View Datasheet →M25P80-VMN3TPB
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.64 / Unit
View Datasheet →M25P10-AVMN3TP/Y
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.42 / Unit
View Datasheet →M25P20-VMN3TPB Maximum Ratings & Electrical Characteristics
| Memory Type | NOR Flash, Serial SPI |
| Density | 2 Mbit (256K x 8) |
| Interface | SPI |
| Max Clock Frequency | 75 MHz |
| Supply Voltage | 2.3 V to 3.6 V (2.5 V/3.3 V class) |
| Access Time | 8 ns |
| Page Program Time | 0.8 ms typical (up to 256 bytes) |
| Sector Size | 512 Kbit |
| Sector Erase Time | 0.6 s typical |
| Bulk Erase Time | 3 s typical |
| Operating Temperature | -40C to +125C |
| Package | SOIC-8 (SO, 0.150 inch width), plastic, RoHS compliant |
| Pins | 8 |
| Mounting Type | Surface Mount |
| Write Protection | Hardware and software write protection |
| Packaging | Tape and Reel |
| RoHS Status | Compliant |
M25P20-VMN3TPB Pin Configuration
| Pin 1 | S# — Chip select (active low) |
| Pin 2 | Q — Serial data output (MISO) |
| Pin 3 | W# — Write protect (active low) |
| Pin 4 | VSS — Ground |
| Pin 5 | D — Serial data input (MOSI) |
| Pin 6 | C — Serial clock |
| Pin 7 | H# — Hold (active low) |
| Pin 8 | VCC — Power supply, 2.3 V to 3.6 V |
Typical Applications
M25P20-VMN3TPB is suitable for 6 applications: FPGA Configuration Storage, Embedded Boot Code Memory, Industrial Parameter and Calibration Storage, Networking Equipment Firmware Storage, Automotive-Adjacent Module Data Storage, Consumer Electronics Firmware Storage.
FPGA Configuration Storage
The M25P20-VMN3TPB stores FPGA configuration bitstreams read through master-serial SPI configuration modes. Its 75 MHz SPI bus with 8 ns access time and fast-read commands minimizes configuration latency at power-up, which matters for systems with deterministic bring-up requirements. The 2 Mbit (256K x 8) array fits small-to-mid-size FPGA bitstreams, while hardware and software write protection locks the golden image against accidental corruption in the field. Place the device adjacent to the FPGA with short clock and data traces, add 0.1 uF decoupling at VCC, and hold chip select high during power ramp. Note the EOL status: for new FPGA designs, pin-compatible M25P40/M25P16 devices in the same SOIC-8 footprint extend capacity headroom without a PCB respin.
Recommended
Embedded Boot Code Memory
Boot ROM replacement is the classic role of serial NOR Flash, and the M25P20-VMN3TPB fits this for microcontroller and SoC platforms whose primary bootloader fits in 256 Kbytes. The SPI interface connects to most MCU boot ROM peripherals directly, the 2.3 V to 3.6 V range matches 3.3 V logic, and the -40C to +125C rating covers industrial deployments. Page programming at 0.8 ms typical allows in-field bootloader updates over the same SPI bus, while the status-register write-in-progress polling simplifies update firmware. Use the write-protect pin tied to a supervisor GPIO so the boot sector can be protected at runtime. Because the family is EOL, qualify a pin-compatible replacement before new product introduction.
Recommended
Industrial Parameter and Calibration Storage
Factory calibration constants, sensor trim tables, and usage counters must survive power cycling for the product lifetime, making nonvolatile serial NOR like the M25P20-VMN3TPB the storage of choice in industrial drives, motor controls, and metering equipment. The 0.8 ms page program supports field logging of parameters, and the -40C to +125C operating range matches industrial ambient extremes. Write-protection mechanisms prevent corruption from runaway firmware, and bulk erase in 3 s typical enables full reconfiguration at service time. Manage erase-cycle budgeting by sector since erase wear accumulates per 512 Kbit block. For new industrial designs, move to a still-active pin-compatible part given the M25P20 EOL status.
Recommended
Networking Equipment Firmware Storage
Routers, switches, and network appliances store their firmware image and board-level configuration in SPI NOR Flash, and the M25P20-VMN3TPB serves designs whose compressed images fit 2 Mbit. The 75 MHz interface supports fast reads during early boot, and dual-use of the bus for runtime configuration reads keeps the BOM to one memory device. RoHS-compliant SOIC-8 assembly suits standard reflow processes, and hardware write protect can gate firmware updates from untrusted sources. Verify image compression fits the 256 Kbyte array with headroom for failover or dual-image schemes, which typically require stepping up to M25P16 or M25P80 in the same footprint. EOL stock scarcity is the main sourcing risk here.
Recommended
Automotive-Adjacent Module Data Storage
Body controllers, sensor modules, and non-safety automotive electronics require memory rated across the full -40C to +125C automotive ambient, which the M25P20-VMN3TPB provides with its industrial-plus temperature grade. Its deterministic SPI read behavior simplifies startup sequencing when the host MCU fetches configuration each power cycle, and 2.3 V to 3.6 V operation aligns with standard 3.3 V module rails tolerant of load-dump transients through upstream regulation. Write protection secures VIN and part-number records programmed at end-of-line. For designs where AEC-Q100 qualification is mandatory, verify grade requirements against the specific module spec, since the M25P family is EOL and successor parts should be evaluated.
Recommended
Consumer Electronics Firmware Storage
Set-top boxes, small appliances, and consumer IoT devices use low-cost SPI NOR for their boot and firmware images, and the M25P20-VMN3TPB historically served this cost-sensitive segment with its simple 8-pin SOIC footprint and commodity assembly. The tape-and-reel packaging supports high-volume pick-and-place, the 0.8 ms page program allows factory programming on the production line, and bulk erase in 3 s enables rework refurbishment. Design margin matters: consumer firmware growth quickly outgrows 256 Kbytes, so footprint-compatible M25P40/M25P16 parts are the practical choice. Since the M25P20 is EOL as of the Micron low-density exit, consumer production lines should complete last-time-buy stock or redesign now.
Recommended
Recommended Products Summary
Engineering reference data for M25P20-VMN3TPB — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | M25P40-VMN3TPB | M25P16-VMN3TPB | M25P80-VMN3TPB | M25P10-AVMN3TP/Y |
|---|---|---|---|---|---|
| Package | SOIC-8 (0.150 inch) | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same |
| Brand | Micron Technology | Micron Technology | Micron Technology | Micron Technology | Micron Technology |
| Density | 2 Mbit (256K x 8) | 4 Mbit | 16 Mbit | 80 Mbit | 1 Mbit |
| Max Clock Frequency | 75 MHz | 75 MHz | 75 MHz | 75 MHz | 75 MHz |
| Supply Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V |
| Lifecycle Status | EOL | EOL (Micron low-density exit) | EOL (Micron low-density exit) | EOL (Micron low-density exit) | EOL (Micron low-density exit) |
Key Differentiators
- Smallest array in the pin-compatible family (vs M25P40-VMN3TPB)
- Full 75 MHz SPI in the 8-pin package (vs M25P10-AVMN3TP/Y)
- Industrial temperature grade with longevity commitment (vs M25P16-VMN3TPB)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor within 2 mm of the VCC pin (pin 8) with a solid via to the ground plane. Keep SPI clock (C), data-in (D), and data-out (Q) traces under 10 cm where possible and match chip-select routing to minimize ringing at 75 MHz operation. The SOIC-8 footprint is the industry-standard SPI Flash pattern, so a layout built for this part accepts the M25P40/M25P16/M25P80 drop-ins without changes.
Hold W# (write protect) and H# (hold) at valid levels during power ramp-up: floating pins can leave the status register in an unintended protection state or stall a read in progress. Tie W# high if software-only protection suffices, or drive it from a supervisor GPIO for boot-sector lockdown. Never assert chip select (S#) before VCC reaches the 2.3 V minimum; premature command clocks during brownout are the most common cause of corrupted pages reported on this family.
The device draws its supply from a 2.3 V to 3.6 V rail; do not expose it to 5 V logic - level-shift the SPI bus if the host runs at 5 V. Program and erase operations draw higher transient current than reads, so size the local decoupling (0.1 uF plus optional 4.7 uF bulk) to prevent VCC dips during 0.8 ms page programs, which would otherwise abort the write and corrupt the page.
The M25P20-VMN3TPB is end of life under Micron's low-density memory exit, per the Renesas Micron-EOL conversion documentation. For new designs, specify the same-footprint M25P40/M25P16/M25P80 or evaluate the Adesto FUSION/Standard Flash migration path recommended in that guide. For existing designs, place a lifetime buy now, as distributor stock (DigiKey, Mouser, TrustedParts) is the only remaining channel and will not be replenished.
Compliance Information
Package described in verified data as RoHS-compliant plastic SOP-8; Mouser lists RoHS 2011/65/EU compliant (UT). REACH, halogen-free, and conflict-minerals status not stated in provided data.
