N25Q128A13E1240E

Introduction: N25Q128A13E1240E is a Macronix (MXIC) N25Q128A-series 128-Mbit serial NOR flash memory.
Key points:
- Capacity and type: 128 Mbit (16 MB) of non-volatile storage, serial NOR flash.
- Interface: SPI-compatible with support for dual/quad I/O (QPI) modes for high-speed reads.
- Addressing: 4-byte addressing to access memory beyond 16 Mbit.
- Organization and operations: typically 256-byte pages; sectors/pages erased in 4 KB, 32 KB, 64 KB blocks; bulk erase supported.
- Features: standard and fast/read-while-erase options; write enable/disable, status/config registers, and write/sector protection mechanisms.
- Endurance and retention: commonly rated around 100k program/erase cycles with data retention on the order of years (often ~20 years under spec conditions).
- Supply and temp: operating voltage usually in the 2.7–3.6 V range (some grades may cover 1.8–3.6 V) with industrial temp grades (-40°C to +85°C or up to +105°C depending on the grade).
- Applications: firmware storage, boot images, code updates, data logging.
Note: exact figures vary by variant; check the latest N25Q128A13E1240E datasheet for precise specs.

Equivalent 128‑Mbit SPI Flash parts from major vendors:
- Winbond W25Q128FV
- Macronix MX25L12845G
- GigaDevice GD25Q128C
- Spansion/Cypress S25FL128S
- ISSI IS25LP128
- Macronix MX25U12845G
Note: exact cross-reference depends on voltage, speed grade, and package.

N25Q128A13E1240E features (highlights):
- 128-Mbit (16 MB) serial flash memory
- SPI interfaces: standard SPI with Dual/Quad I/O and QPI modes
- 4-byte addressing for full capacity access
- Page size 256 bytes; Page Program supported
- Erase types: 4 KB sectors; 32 KB and 64 KB blocks; Chip Erase
- High-speed read modes: Fast Read and Quad I/O Read
- SFDP-compliant for easy software integration
- Security and protection: sector/block protection, block lock, WP# option
- Power modes: Deep Power-Down and low active current
- Endurance: typical high erase/program cycle life
- Supply voltage: 2.7–3.6 V (single-supply; variants exist)
- Temperature range: industrial grade (typical)
- Package: 8-pin package (e.g., SOP/USON)
Note: exact voltage range and speed specs may vary by variant; consult datasheet for precise numbers.

- Pin count: 8 pins (8-SOP/SOIC package).
- Function: 128-Mbit serial NOR flash memory with SPI (and Quad SPI) interface for non-volatile storage of firmware/data. Typical 8-pin pinout: CS#, SCLK, SI (MOSI), SO (MISO), WP#, HOLD#, VCC, GND.

- Manufacturer: Nuvoton Technology Corporation (Nuvoton).
- What kind of company: A Taiwan-based fabless semiconductor company that designs and markets microcontrollers, embedded controllers, and memory/analog ICs; manufacturing is outsourced to semiconductor foundries.

Applications of N25Q128A13E1240E (128Mb serial NOR flash) include:
- Firmware storage and boot code for microcontrollers/SoCs
- Secure firmware updates and bootloading
- Parameter/configuration data storage for automotive, industrial, and networking devices
- Data logging and buffering in IoT, wearables, cameras, and consumer electronics
- Embedded file system storage for set-top boxes, printers, and media players
- Network gear (routers, gateways, modems)
- Automotive ECUs and instrument clusters
- Industrial automation controllers and sensors
These use cases leverage non-volatile, fast-read serial flash for code, data, and configuration storage.

8-pin SOP (SOIC) package.