N25Q256A13ESFA0F - 256Mb SPI NOR Flash 108MHz | Micron
MPN: N25Q256A13ESFA0F ✓ Hoạt độngN25Q256A13ESFA0F Tóm tắt
Serial NOR Flash is a non-volatile memory class that stores code and data while allowing in-system byte-wise reads through a low-pin-count SPI bus. In the memory hierarchy it sits between parallel NOR (higher pin count, faster random access) and serial NAND or EEPROM (lower endurance, slower random access), making it the default boot memory for embedded processors, microcontrollers, and FPGAs.
Key features include a 108 MHz maximum clock frequency with equivalent dual- and quad-I/O throughput, 4 KB sector erase granularity for fine-grained wear management, execute-in-place (XIP) capability so code can run directly from the Flash without copying to RAM, and advanced write-protection mechanisms. The 65 nm SLC NOR cell design delivers high reliability and fast random read latency versus charge-trap alternatives.
Architecturally, the N25Q256A device organizes 256 Mbit as 32 M x 8 with sector, subsector, and page program operations, using an SPI-compatible instruction set familiar from the broader N25Q family. The multiple-I/O bus and XIP mode minimize boot time in deeply embedded systems, while the standard SPI commands simplify software reuse across density grades.
Typical applications include FPGA and MCU boot code storage, automotive and industrial embedded systems, networking equipment firmware, and set-top-box or display code storage, where 32 MB of reliable code memory with quad-SPI bandwidth is required.
Design consideration: when running at 108 MHz in quad mode, pay close attention to signal integrity on DQ lines and keep trace lengths matched; confirm the required output drive and dummy-cycle configuration per the manufacturer datasheet.
This page synthesizes distributor pricing context, drop-in same-package alternatives, pinout, and practical design notes not found in a single manufacturer document.
Bộ thay thế dễ dàng lắp đặt cho N25Q256A13ESFA0F — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với N25Q256A13ESFA0F (cùng hình factor và footprint) — khác nhau ở Interface, Memory Type, Organization, Package, Supply Voltage.
MT25QL256ABA8ESF-0AIT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
N25Q256A83ESFA0F
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →N25Q512A13GSFA0F
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →N25Q512A83GSFA0F
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →N25Q128A13ESEA0F
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →N25Q064A13ESEA0F
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →N25Q256A13ESFA0F Thông số kỹ thuật
| Kiểu bộ nhớ | Serial NOR Flash (SLC) |
| Kích thước bộ nhớ | 256 Mbit (32 MB) |
| Tổ chức | 64M x 4 / 32M x 8 |
| Giao diện | SPI / Dual SPI / Quad SPI |
| Max Clock Frequency | 108 MHz |
| Điện áp cung cấp | 2.7 V to 3.6 V |
| Technology | 65 nm NOR |
| Sector Erase Size | 4 KB |
| Special Features | Execute-In-Place (XIP), write protection |
| Kiểu lắp đặt | Surface Mount |
| Hộp / Vỏ | SOP2-16 (16-SOP) |
| Nhiệt độ hoạt động | -40C to +85C |
| Packaging | Tape & Reel (TR) |
| Grade | Automotive-qualified per distributor listing |
| Trạng thái RoHS | Compliant |
| Danh mục | Memory ICs > Flash - NOR |
Cấu hình chân N25Q256A13ESFA0F
| Chân 1 | S# — Chip select (active low) |
| Chân 2 | DQ1 (SO) — Serial data output / DQ1 in quad mode |
| Chân 3 | WP# / DQ2 — Write protect / DQ2 in quad mode |
| Chân 4 | VSS — Ground |
| Chân 5 | DQ0 (SI) — Serial data input / DQ0 in quad mode |
| Chân 6 | C (SCLK) — Serial clock input |
| Chân 7 | HOLD# / DQ3 — Hold / DQ3 in quad mode |
| Chân 8 | VCC — Power supply (2.7 V to 3.6 V) |
| Chân 9 | NC — Not connected (per datasheet) |
| Chân 10 | NC — Not connected (per datasheet) |
| Chân 11 | NC — Not connected (per datasheet) |
| Chân 12 | NC — Not connected (per datasheet) |
| Chân 13 | NC — Not connected (per datasheet) |
| Chân 14 | NC — Not connected (per datasheet) |
| Chân 15 | NC — Not connected (per datasheet) |
| Chân 16 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
N25Q256A13ESFA0F phù hợp cho 6 Áp dụngs: FPGA Configuration and Boot Flash, Industrial Embedded Controller Code Storage, Networking Equipment Firmware Storage, Automotive Telematics and Infotainment Boot Memory, Set-Top Box and Display Code Storage, Test and Measurement Instrument Storage.
FPGA Configuration and Boot Flash
The N25Q256A13ESFA0F is a primary configuration memory for FPGAs requiring 32 MB of bitstream storage. Its 108 MHz quad-SPI interface delivers the read bandwidth needed for fast configuration times, while execute-in-place (XIP) support allows soft processors to run application code directly from the Flash without a RAM copy step. The 4 KB sector erase granularity lets multiple bitstream revisions coexist with a small parameter area. Placed on the dedicated SPI configuration bus with CS# and SCK routed short and matched, it reliably meets configuration timing; dummy-cycle settings must match the selected clock frequency per the manufacturer datasheet for stable reads.
Được đề xuất
Industrial Embedded Controller Code Storage
Industrial controllers, PLC I/O modules, and motor-drive boards store boot code, RTOS images, and web-server assets in the N25Q256A13ESFA0F. The -40C to +85C operating range covers unconditioned factory-floor environments, and SLC NOR cells on 65 nm technology provide the random-read latency and endurance expected of code storage, unlike serial NAND. The 2.7 V to 3.6 V supply connects directly to a 3.3 V rail with 100 nF local decoupling. The advanced write-protection mechanisms guard boot blocks against corruption during field firmware updates, allowing safe in-system programming while reserving a protected recovery image.
Được đề xuất
Networking Equipment Firmware Storage
Routers, switches, and GPON equipment use the N25Q256A13ESFA0F to hold bootloader, OS image, and dual-firmware banks. The 32 MB capacity accommodates two complete firmware images plus a configuration partition, enabling safe A/B fail-over updates. Quad-I/O reads at 108 MHz minimize boot time before the network line comes up, an important metric for carrier equipment. The JEDEC-standard SPI command set shared across the N25Q family lets one bootloader support multiple density grades, simplifying BOM rationalization across product tiers. Keep DQ0-DQ3 trace lengths matched on the layout for stable quad-mode operation at full clock rate.
Được đề xuất
Automotive Telematics and Infotainment Boot Memory
Automotive telematics units and infotainment head units store secure-boot code in SPI NOR Flash, and distributor listings categorize the N25Q256A13ESFA0F as an automotive-qualified serial NOR device with the -40C to +85C grade. The 108 MHz quad-SPI bus reduces first-boot latency, and the write-protection scheme protects boot blocks against voltage-glitch corruption during cranking events. Designers should pair it with a supervisor that holds the SPI bus reset during brownouts, and verify AEC qualification level requirements against Micron's official documentation for the specific program start date applicable to this part number.
Được đề xuất
Set-Top Box and Display Code Storage
Set-top boxes, smart TVs, and display controllers use the N25Q256A13ESFA0F to store boot code, graphics assets, and calibration tables. The 32 MB capacity covers uncompressed splash-screen assets plus the bootloader, while 4 KB sectors allow fine-grained storage of HDCP keys and EDID data without erasing firmware banks. XIP operation lets the display scaler fetch lookup tables directly from Flash, reducing DRAM pressure. The 2.7 V to 3.6 V single-supply operation connects directly to the standby 3.3 V rail, keeping wake-from-standby boot times short because the Flash remains powered and retains content.
Được đề xuất
Test and Measurement Instrument Storage
Bench instruments and data loggers store firmware, calibration constants, and user settings in the N25Q256A13ESFA0F. SLC NOR provides deterministic random-read latency, which keeps instrument boot and calibration recall times predictable, and the 4 KB sector size lets calibration tables be rewritten independently of the 32 MB firmware image. The advanced write-protection hardware prevents accidental corruption of factory calibration blocks during user updates. Engineers should implement power-fail-safe journaling on top of the page-program commands and hold CS# high during brownout events to avoid partial program operations corrupting stored data.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho N25Q256A13ESFA0F — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MT25QL256ABA8ESF-0AIT | N25Q256A83ESFA0F | N25Q512A13GSFA0F | N25Q128A13ESEA0F | N25Q064A13ESEA0F |
|---|---|---|---|---|---|---|
| Package | SOP2-16 (16-SOP) | SOP2-16 (16-SOP) - same | SOP2-16 (16-SOP) - same | SOP2-16 (16-SOP) - same | SOP2-16 (16-SOP) - same | SOP2-16 (16-SOP) - same |
| Brand | Micron Technology | Micron Technology | Micron Technology | Micron Technology | Micron Technology | Micron Technology |
| Density | 256 Mbit (32 MB) | 256 Mbit | 256 Mbit | 512 Mbit | 128 Mbit | 64 Mbit |
| Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 1.7 V to 2.0 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V |
| Max Clock Frequency | 108 MHz | 108 MHz | 108 MHz | 108 MHz | 108 MHz | 108 MHz |
| I/O Modes | SPI / Dual SPI / Quad SPI (x1/x2/x4) | SPI / Dual / Quad | SPI / Dual / Quad | SPI / Dual / Quad | SPI / Dual / Quad | SPI / Dual / Quad |
| Generation / Lifecycle | N25Q generation, active | MT25Q successor generation, active | N25Q generation, active (1.8 V) | N25Q generation, active | N25Q generation, active | N25Q generation, active |
Bảo phân biệt quan trọng
- Current-generation N25Q architecture at 3 V (vsN25Q256A83ESFA0F)
- Next-generation migration path with same footprint (vsMT25QL256ABA8ESF-0AIT)
- Cost-optimized density point (vsN25Q512A13GSFA0F)
Ghi chú thiết kế
When running quad-I/O at the full 108 MHz clock, treat the SPI bus as a controlled signal-integrity interface: keep SCK and DQ0-DQ3 traces under ~10 cm where possible, length-match the four data lines, and route over a continuous ground plane. Incorrect dummy-cycle configuration for the selected frequency is the most common cause of intermittent read errors, especially after migrating between N25Q and MT25Q generations. Verify the READ dummy clocks against the manufacturer datasheet for your exact clock rate.
Power the N25Q256A13ESFA0F from a clean 3.3 V rail (2.7 V to 3.6 V range) with a 100 nF ceramic decoupling capacitor placed within a few millimeters of the VCC pin, plus a bulk 10 uF capacitor per supply group. During bulk erase operations, current spikes can cause local droop on shared rails; a brownout during program or erase can corrupt the target sector, so pair the Flash with a voltage supervisor that holds S# (CS#) high during power transitions and implement power-fail-safe journaling for critical data.
Watch the part-number voltage code when second-sourcing: '13' = 3 V class, '83' = 1.8 V class - they are physically identical in SOP2-16 but not electrically interchangeable. Also confirm the JEDEC device ID and protection-register behavior in firmware when moving between the N25Q and MT25Q generations, as command definitions and dummy clocks differ slightly. Finally, do not rely on the WP# pin alone for boot-block security; use the volatile and non-volatile protection registers described in the manufacturer datasheet.
On the 16-pin SOP2 footprint, pins 9 through 16 are unused in standard operation; tie the footprint pads to ground pour or leave them as no-connect per the datasheet to ease reflow and inspection. Provide a thermal relief pad set compatible with both the 208 mil and 300 mil 16-SO variants only if you explicitly intend multi-footprint reuse; otherwise lock the footprint to this package to prevent accidental assembly of the wrong density or voltage grade.
Thông tin tuân thủ
Distributor listings categorize this part as an automotive serial NOR device; RoHS/lead-free status is typical for the N25Q family but exact REACH and halogen-free status should be confirmed from Micron's official product-compliance documentation for this specific part number.
