M25P64-VMF3PB - 64Mbit SPI NOR Flash 75MHz | Micron
N.º da peça: M25P64-VMF3PB ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.2 | $3,20 |
| 10 | $2.88 | $28,80 |
| 100 | $2.6 | $260,00 |
| 500 | $2.35 | $1.175,00 |
| 1.000 | $2.12 | $2.120,00 |
M25P64-VMF3PB Visão geral
A serial NOR Flash memory is a non-volatile semiconductor memory that stores code and data and is accessed byte-by-byte over a serial peripheral interface (SPI). Within the memory hierarchy it sits alongside parallel NOR and serial NAND devices; because it offers random-access read capability, it is the dominant boot-memory choice for microcontrollers, FPGAs, and SoCs in the power management IC and semiconductor ecosystem.
Key features of the M25P64 include 64 Mbit of Flash memory density, SPI-bus-compatible serial interface with clock rates up to 75 MHz, a 3 V class single supply (2.7 V to 3.6 V), sector and bulk erase operations, and a hardware write-protect pin. Automotive qualification and RoHS-compliant, lead-free packaging distinguish this variant for industrial and vehicular deployments.
The device is organized as 8M words of 8 bits, with page-program and sector-erase commands defined in the M25P command set inherited from the Numonyx (STMicroelectronics) product line now owned by Micron. Page programming and fast read operations allow embedded bootloaders and configuration loaders to fetch FPGA bitstreams or MCU firmware efficiently over just four signal lines (S, C, D, Q), reducing pin count and PCB routing complexity versus parallel Flash.
Typical applications include FPGA configuration storage (notably for Microsemi/Microchip RTAX and ProASIC3 radiation-tolerant and space-adjacent platforms), automotive ECU boot memory, and industrial firmware storage where non-volatile code retention and SPI simplicity are essential.
For design, hold and write-protect timing must be respected during power sequencing, and the 75 MHz clock requires careful SPI signal-integrity layout with series termination on the clock line.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para M25P64-VMF3PB — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
M25P64-VMF6PB
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
M25P64-VMF6T
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
M25P64-VME6
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
N25Q64A
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
S25FL064P
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
M25P64-VMF3PB Classificações máximas e características elétricas
| Tipo de memória | NOR Flash, Serial SPI |
| Memory Density | 64 Mbit (67109 kbits) |
| Organização da memória | 8M x 8 |
| Number of Words | 8000 k |
| Bits per Word | 8 bits |
| Max Clock Frequency | 75 MHz |
| Supply Voltage Range | 2.7 V to 3.6 V |
| Tipo de interface | SPI Serial |
| Encapsulamento | 16-SOP (SOIC wide body, 8 x 6 mm) |
| Contagem de pinos | 16 |
| Tipo de montagem | Surface Mount |
| Temperature Grade | Automotive |
| Status RoHS | Compliant, lead-free package |
| Original Manufacturer Lineage | Numonyx (now Micron Technology) |
| Process Basis | T9HX process (available since March 2008) or previous process |
Configuração de pinos do M25P64-VMF3PB
| Pino 1 | HOLD — Hold input - pauses serial communication without deselecting the device |
| Pino 2 | VCC — Power supply (2.7 V to 3.6 V) |
| Pino 3 | NC — Not connected (per datasheet) |
| Pino 4 | NC — Not connected (per datasheet) |
| Pino 5 | Q — Serial data output (data out) |
| Pino 6 | VSS — Ground |
| Pino 7 | D — Serial data input (data in) |
| Pino 8 | C — Serial clock input (SPI clock, up to 75 MHz) |
| Pino 9 | NC — Not connected (per datasheet) |
| Pino 10 | NC — Not connected (per datasheet) |
| Pino 11 | NC — Not connected (per datasheet) |
| Pino 12 | NC — Not connected (per datasheet) |
| Pino 13 | NC — Not connected (per datasheet) |
| Pino 14 | S — Chip select input (active low) |
| Pino 15 | W — Write protect input (active low) |
| Pino 16 | VSS — Ground |
Aplicações típicas
M25P64-VMF3PB é adequado para 6 aplicaçãos: FPGA Configuration Storage, Automotive ECU Boot Memory, Industrial Firmware and Parameter Storage, Networking and Communication Equipment, Test and Measurement Instruments, Aerospace and Defense Support Electronics.
FPGA Configuration Storage
The M25P64-VMF3PB is a standard configuration memory for FPGAs, including Microsemi (Microchip) RTAX and ProASIC platform reference designs that historically specify the M25P command set. Its 64 Mbit (8 MB) capacity comfortably holds large bitstreams, and the 75 MHz SPI Fast Read rate minimizes FPGA configuration time at power-up. Connected via the standard four SPI signals (S, C, D, Q) with HOLD and W pins for pause and write protection, it plugs directly into FPGA master-serial configuration modes. Designers should verify the configuration clock divider so the FPGA never clocks the Flash above 75 MHz and respect the device power-ramp spec to guarantee a clean power-on reset.
Recomendado
Automotive ECU Boot Memory
With its automotive temperature grade, the M25P64-VMF3PB serves as boot and calibration-storage Flash in engine control units, body controllers, and ADAS support modules. The 2.7 V to 3.6 V supply tolerates automotive rail transients after upstream regulation, the hardware write-protect (W) pin protects calibration sectors from accidental corruption, and RoHS lead-free packaging meets current automotive environmental directives. The 64 Mbit array provides ample room for bootloader, application code, and OTA staging sectors. Firmware should implement sector-erase cycling limits and CRC validation of program operations to guard against power-loss during flash writes in cranking or load-dump scenarios.
Recomendado
Industrial Firmware and Parameter Storage
Industrial drives, PLC I/O modules, motor controllers, and instrumentation use the M25P64-VMF3PB to store firmware images, factory calibration, and user parameters. The SPI bus needs only four signal traces, simplifying routing to multiple controllers, while 75 MHz Fast Read keeps boot times short for equipment that must resume operation quickly after power cycles. The bulk-erase command simplifies factory reprogramming, and sector erase (subarray granularity) enables wear-managed parameter logging. Systems should reserve a golden-image sector and a hardware write-protect strap so a corrupted update can always be rolled back, a pattern common in manufacturer reference designs for serial NOR boot memory.
Recomendado
Networking and Communication Equipment
Routers, switches, and line cards use SPI NOR Flash such as the M25P64-VMF3PB for boot code, MAC address storage, and backup firmware banks. The 8M x 8 organization maps cleanly to 32-bit or 64-bit memory images assembled by chained SPI reads, and the 75 MHz interface keeps early-boot latency low. The HOLD pin allows the CPU to pause a read cycle to service an interrupt without re-issuing the read command, improving interrupt latency determinism. Layout practice places the Flash within a few centimeters of the host SoC with series termination on the clock to contain ringing at 75 MHz edges in dense backplane environments.
Recomendado
Test and Measurement Instruments
Oscilloscopes, spectrum analyzers, and signal generators store instrument firmware, calibration constants, and front-panel settings in serial NOR Flash. The M25P64-VMF3PB's 64 Mbit capacity supports dual firmware banks for safe A/B updates, and its automotive-grade temperature spec adds margin in benchtop instruments with warm internal airflows. The SPI interface integrates easily with the instrument's FPGA or microcontroller housekeeping block. Designers typically couple the W pin to a GPIO-driven write-enable so settings sectors are writable only during calibration sessions, preventing accidental NVM corruption during normal operation, a technique reflected in instrument-maker reference designs using the M25P family.
Recomendado
Aerospace and Defense Support Electronics
Ground-support and launch-adjacent equipment built around Microsemi RTAX and ProASIC devices conventionally pair with M25P-family serial Flash, and the M25P64-VMF3PB's automotive grade extends its usable envelope in rugged industrial-aerospace hybrids such as UAV avionics test racks and telemetry ground stations. The M25P command set compatibility with FPGA master-serial configuration modes means no glue logic is required, and 64 Mbit covers even large RTAX4000-class bitstreams when using configuration compression. Supply-chain continuity matters in this segment: qualifying multiple drop-in ordering codes (VMF6PB, VMF6T) and the cross-referenced S25FL064P hedges against the legacy M25P line's long-term availability.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para M25P64-VMF3PB — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | M25P64-VMF6PB | M25P64-VMF6T | N25Q64A | S25FL064P |
|---|---|---|---|---|---|
| Package | 16-SOP (SOIC wide body, 8 x 6 mm) | 16-SOP (SOIC wide body) - same | 16-SOP (SOIC wide body) - same | SO16W equivalent - verify outline | SOIC-16 - same footprint |
| Brand | Micron Technology | Micron Technology | Micron Technology | Micron Technology | Infineon (Cypress Semiconductor) |
| Density | 64 Mbit (8M x 8) | 64 Mbit | 64 Mbit | 64 Mbit | 64 Mbit |
| 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 (per family note) | 2.7 V to 3.6 V |
| Temperature Grade | Automotive | Standard (verify grade code) | Standard (verify grade code) | Industrial/automotive options | Industrial/automotive options |
| Command Set Compatibility | M25P native | Identical M25P command set | Identical M25P command set | Mostly compatible per Micron technical note | Similar command set, ID codes differ |
Principais diferenciais
- Automotive temperature grade in legacy-friendly package (vs M25P64-VMF6PB)
- Command-set proven for FPGA reference designs (vs S25FL064P)
- Lower supply-chain risk than the newer N25Q family for legacy builds (vs N25Q64A)
Notas de projeto
At the 75 MHz maximum SPI clock, keep the Flash within 5-8 cm of the host controller and route clock (C) and data (D, Q) as matched-length traces over a continuous ground plane. Add 22-33 ohm series resistors on the clock line to dampen ringing, and avoid routing SPI lines near switching regulator inductors. If the bus must cross a connector or exceed 10 cm, derate the SPI clock to 50 MHz or lower and validate eye margins at temperature.
The device operates from 2.7 V to 3.6 V; decouple VCC with 100 nF X7R ceramic placed within 2 mm of the pin, plus 4.7-10 uF bulk at the rail. Observe the datasheet power-ramp (VCC rise time) requirement so internal power-on-reset logic releases the device cleanly; a slow or browning-out rail can leave the device mid-command. Estimated: program/erase current peaks are brief but should be budgeted in the 3.3 V rail so that VCC never dips below 2.7 V during bulk erase of the 64 Mbit array.
When substituting parts, remember the M25P64 device identification differs between vendors: N25Q64A and S25FL064P return different JEDEC ID and RES/REM codes, so bootloader firmware that hard-codes IDs will reject valid replacements. Also, write-protect (W) and HOLD have internal timing relationships with chip select (S) - do not float these pins; tie W high if protection is unused, and pull HOLD high with a pull-up, otherwise spurious clock edges during power-up can latch the device in hold mode.
For FPGA configuration designs, connect the Flash D/Q/C/S lines directly to the FPGA's dedicated SPI/config bank and keep a series resistor option on the clock for future clock derating. Reserve a testpoint on the D line for in-system programming clips. Where dual firmware banks are required, allocate the 8 MB array as two 4 MB images plus a metadata sector, and map the metadata sector to the write-protected region via the W pin during field operation.
Informações de conformidade
Per the M25P64 datasheet, Numonyx/Micron offers the M25P64 in lead-free and RoHS-compliant packages; distributor listings describe the VMF3PB as RoHS compliant. No AEC-Q100 declaration, REACH, halogen-free, or conflict-minerals statement appears in the provided data.
