M25P32-VMF3TPB - 32Mb SPI NOR Flash 75MHz | Micron Technology
料号： M25P32-VMF3TPB ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.2 | $22.00 |
| 100 | $1.95 | $195.00 |
| 500 | $1.72 | $860.00 |
| 1,000 | $1.58 | $1,580.00 |
M25P32-VMF3TPB 概述
A serial NOR Flash memory is a nonvolatile semiconductor storage device that retains firmware, boot code, or data logs without power. Unlike parallel NOR or NAND Flash, serial NOR communicates over a simple SPI (Serial Peripheral Interface) bus using few pins, occupying minimal board area while providing random-access-style byte read behavior. In the memory hierarchy of an embedded system, it typically sits as the boot and firmware storage device for microcontrollers, FPGAs, and SoCs, complementing volatile DRAM and high-density NAND storage.
Key features of the M25P32-VMF3TPB include 32 Mbit of Flash density organized as 4,194,304 bytes, page programming of 1 to 256 bytes with a typical page program time of about 1.4 ms, and advanced write-protection mechanisms covering both hardware and software schemes. The device supports high-performance read commands at clock speeds up to 75 MHz, enabling fast code-shadowing and boot-loader execution. An 8 ns access-time class and automotive-grade qualification make it suitable for reliability-sensitive designs.
Architecturally, the memory array is divided into uniform 64-Kbyte sectors (with 32-Kbyte subsector erase capability on related family members), allowing granular firmware-in-field updates. The SPI command set includes standard Read, Fast Read, Page Program, Sector Erase, Bulk Erase, and status/instruction registers, with deep power-down mode for low standby power.
Typical applications include FPGA configuration storage (notably Intel/Altera and Xilinx boot flash), embedded controller firmware memory in industrial systems, set-top-box and networking equipment code storage, and automotive module data logging.
Design consideration: because the M25P32 family has been placed on Micron EOL status for low-density memory, new designs should evaluate the pin-compatible conversion options documented by NOR Flash vendors such as Adesto/Renesas AT25SF and Winbond W25Q families.
This page synthesizes distributor pricing, drop-in alternative data, EOL conversion guidance, and practical design notes not found in the manufacturer datasheet, helping sourcing teams qualify second sources before final-time-buy deadlines.
直接替换替代料： M25P32-VMF3TPB ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： M25P32-VMF3TPB （相同外形与封装尺寸） ——差异在于 Organization, Write Protection, Memory Type, Interface, Density.
快速对比工具——选择替代料号进行并排对比：
M25P64-VMF3TPB
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →M25P16-VMF3TPB
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →M25P32-VMW3GB
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.18 / 个
查看数据手册 →AT25SF321B-SHB-T
✅ 直接替换📋 参考替代料（不在目录中）
W25Q32VSFIG
✅ 直接替换📋 参考替代料（不在目录中）
M25P32-VMF3TPB 最大额定值与电气特性
| 存储器类型 | Serial NOR Flash |
| Density | 32 Mbit (33,554,432 bits) |
| 存储组织 | 4M x 8 |
| 接口 | SPI-compatible serial bus |
| Max Clock Frequency | 75 MHz |
| 电源电压 | 3.0 V to 3.6 V (3.3 V typ) |
| Access Time Class | 8 ns |
| Page Program Size | 1 to 256 bytes |
| Typical Page Program Time | 1.4 ms |
| Write Protection | Advanced hardware and software write protection |
| 封装 | SO-16-W (16-pin wide body small outline) |
| Pins | 16 |
| 安装类型 | Surface Mount |
| Grade | Automotive |
| RoHS 状态 | RoHS compliant |
| Packaging | Tape and Reel (T/R) |
M25P32-VMF3TPB so-16-w (16-pin wide body small outline) 引脚配置指南
M25P32-VMF3TPB（so-16-w (16-pin wide body small outline) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： M25P32-VMF3TPB.
请参阅 数据手册 以查看完整引脚配置。
典型应用
M25P32-VMF3TPB 适用于 6 应用s: FPGA Configuration Storage, Industrial Controller Firmware Memory, Automotive Module Data Logging, Networking and Set-Top Equipment Code Storage, Embedded Logging and Data Retention, Computing Modules and Replacement Sourcing.
FPGA Configuration Storage
The M25P32-VMF3TPB serves as configuration bitstream storage for Intel/Altera and Xilinx FPGAs. Its 32 Mbit density accommodates mid-range FPGA bitstreams, and the 75 MHz SPI interface shortens configuration time during power-up compared with 50 MHz-class devices; a 4 Mbit bitstream loads in a fraction of the time budget of typical boot windows. The device is connected directly to the FPGA's dedicated configuration DCLK/DATA pins, and its advanced write-protection mechanisms prevent accidental corruption of the golden image. In this role it is command-compatible with EPCS-class configuration flows, as reflected in FindIC replacement tables pairing it with Altera EPCS parts. Because the part is EOL, new FPGA designs should pin-compatibly transition to the N25Q/MT25QL families, while existing boards can retain M25P32 for service spares.
推荐
Industrial Controller Firmware Memory
Industrial PLCs, motor drives, and automation controllers store boot code and application firmware in serial NOR Flash, and the M25P32-VMF3TPB fits this role with its 4M x 8 array, 3.0-3.6 V single supply, and sector-erasable architecture enabling field firmware updates. The 1-256 byte page programming with 1.4 ms typical program time allows incremental firmware patching, while hardware and software write protection secures the bootloader region against errant writes during power glitches common on factory floors. Its RoHS-compliant, automotive-qualified construction supports wide-temperature industrial environments. Designers should reserve at least one 64-Kbyte sector for a recovery bootloader since the part is EOL; stocking M25P64-VMF3TPB as a pin-compatible service spare protects against supply disruption.
推荐
Automotive Module Data Logging
Automotive electronic control modules require nonvolatile storage for calibration data, event logs, and diagnostic freeze frames, and the M25P32-VMF3TPB addresses this with automotive-grade qualification and AEC-Q100 certification reported by distributor listings. The SPI interface keeps the MCU pin count low in body-control, gateway, and telematics modules, while the 3.3 V rail matches standard automotive-logic domains after local regulation. Write-protect registers let the ECU lock calibration blocks while leaving logging sectors freely programmable over vehicle lifetime. Power-fail robustness must be designed in: gate the chip-select and use status-register polling so a lost ignition during Page Program does not corrupt data. As the part is EOL, qualification engineers should parallel-source AT25SF321B for continued production.
推荐
Networking and Set-Top Equipment Code Storage
Routers, switches, and set-top boxes historically used M25P32-class serial NOR to store bootloaders and compressed firmware images. The 32 Mbit organization (4M x 8) holds a U-Boot loader plus a compressed kernel image, and the 75 MHz fast-read command accelerates boot code shadowing into DDR, reducing visible power-on latency. The single 3.3 V supply integrates directly into networking board power trees, and the SO-16-W footprint offers comfortable routing clearance on dense multi-layer PCBs. Advanced write protection safeguards the immutable bootloader from malicious or accidental overwrite during OTA firmware updates. For production networking hardware, designers migrating away from EOL M25P parts typically qualify W25Q32 or AT25SF321B with identical SPI command behavior and footprint adaptation.
推荐
Embedded Logging and Data Retention
Smart meters, gateways, and battery-powered IoT nodes use the M25P32-VMF3TPB for event and measurement logging. The sector-erase architecture supports wear-managed ring-buffer designs across the 32 Mbit array, and deep power-down mode minimizes average consumption in battery-operated nodes by placing the device in a microamp-class standby between write bursts. The 3.0 V low end of the supply range tolerates partially discharged Li-SOCl2 or Li-ion cells, and byte-granular reads let hosts retrieve single records without page overhead. Designers should implement power-loss-safe write sequences: poll the write-in-progress bit before issuing each Page Program and add brown-out detection on the 3.3 V rail so a dying battery cannot truncate a sector erase midway.
推荐
Computing Modules and Replacement Sourcing
COM Express modules, SOMs, and embedded x86/ARM boards use serial NOR for BIOS/UEFI boot blocks and descriptor data, a role the M25P32-VMF3TPB fulfilled widely across earlier-generation modules. Distributor overview data explicitly lists 'replacement sourcing' among its primary use cases: because Micron EOL'd the low-density M25P family, repair depots and board-service teams now buy residual M25P32-VMF3TPB stock to keep legacy computing modules serviceable. Its SO-16-W package and 3.3 V SPI interface make second-source drop-in qualification straightforward using the conversion guidance published by Adesto/Renesas. Procurement teams should audit remaining quantity requirements against service lifetime and reserve pin-compatible alternates (AT25SF321B, M25P64-VMF3TPB) as the primary long-term strategy.
推荐
推荐产品汇总
工程参考数据： M25P32-VMF3TPB ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | M25P64-VMF3TPB | M25P16-VMF3TPB | M25P32-VMW3GB | AT25SF321B-SHB-T |
|---|---|---|---|---|---|
| Package | SO-16-W (16-pin) | SO-16-W (16-pin) - same | SO-16-W (16-pin) - same | SO-16-W (16-pin) - same family | 8-SOIC commonly; footprint verification required |
| Brand | Micron Technology | Micron Technology | Micron Technology | Micron Technology | Renesas Electronics (Adesto) |
| Density | 32 Mbit (4M x 8) | 64 Mbit (8M x 8) | 16 Mbit (2M x 8) | 32 Mbit (4M x 8) | 32 Mbit (4M x 8) |
| Max SPI Clock | 75 MHz | 75 MHz | 75 MHz | 75 MHz | 85 MHz |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 2.3 V to 3.6 V |
| Lifecycle Status | EOL (Micron low-density EOL) | EOL (same family) | EOL (same family) | EOL (same family) | Active (recommended EOL replacement) |
| Grade / Qualification | Automotive, RoHS compliant | Automotive, RoHS compliant | Automotive, RoHS compliant | Automotive family, RoHS compliant | Industrial/commercial; AEC option AT25SF321B-SSHE-T |
关键差异点
- Same-die family density scaling with identical footprint （对比 M25P64-VMF3TPB)
- Continuity option for legacy 32 Mbit sockets （对比 M25P16-VMF3TPB)
- Pin-to-pin Micron compatibility vs active cross-brand part （对比 AT25SF321B-SHB-T)
设计说明
The M25P32 family is EOL across all low-density Micron memory. Do not start new designs with M25P32-VMF3TPB; per the Renesas/Adesto 'Conversion Guide Micron EOL M25P Products' and the Intel/Altera community thread on replacing M25P32 with AT25SF321B, qualify a second source now. When cross-qualifying, verify the JEDEC SFDP tables and command timing differences (e.g., AT25SF321B Read Manufacturer/Device ID command codes) against your bootloader, since some legacy bootloaders hard-code M25P command IDs.
Operate from a clean 3.3 V rail within the 3.0-3.6 V range and add 100 nF ceramic decoupling directly at the VCC pin plus 4.7-10 uF bulk capacitance. Program and erase operations draw current pulses on the supply; brown-out during a Page Program or Sector Erase can leave the status register in a write-in-progress state, so implement a power-fail handler that checks the write-in-progress bit after every reset and issues Write Enable/Erase-Suspend recovery as needed before resuming writes.
At the full 75 MHz clock, treat SPI traces as controlled-impedance lines: keep DCLK traces under 10 cm where possible, route clock away from data lines, and add 22-33 ohm series resistors on DCLK if ringing or overshoot appears at the receiver. Hold #HOLD high via a pull-up during normal operation and gate chip-select with power-good so the device does not interpret supply-ramp glitches as command bits. For FPGA configuration use, confirm mode-pin settings match the 75 MHz-capable Fast Read flow.
合规信息
Distributor listings (digichip, JLCPCB) mark the part RoHS compliant; Ampheo and Lisleapex listings classify it as Automotive with AEC-Q100 certification reported. REACH, halogen-free, and conflict-minerals status not stated in provided data.
