GD25LQ80CEIGR

GD25LQ80CEIGR is an 8‑Mbit serial flash memory from GigaDevice. In an 8‑pin package, it provides SPI‑bus access to non‑volatile storage for firmware and data. It supports standard SPI (and in supported modes, dual/quad I/O) up to 104 MHz clock and operates from 2.7 to 3.6 V. Key features include fast read, 256‑byte pages for programming, sector/ block erases (4 KB sectors and larger blocks), Write Enable Latch, write protection and status/ID registers, and Deep Power‑Down with wake‑up. Endurance and power characteristics are typical for modern SPI flash (consult the datasheet for specifics). The EIGR suffix indicates RoHS‑compliant, 8‑pin packaging in tape‑and‑reel. Common uses include boot firmware storage, code updates, and data logging in microcontrollers and embedded systems. For exact command set, timing diagrams, and electrical specs, refer to the GD25LQ80C family datasheet from GigaDevice.

Equivalent SPI NOR flash 8 Mbit (3.3V) to GD25LQ80CEIGR include:
- Winbond W25Q80DV/BV
- Macronix MX25L80
- STMicroelectronics M25P80
- Spansion S25FL080P
- ISSI IS25LP080D
- Microchip AT25DF081A
- (Also GD25Q80C from the same family as a cross-reference)

Key features of GD25LQ80CEIGR (8 Mbit serial flash):
- Density: 8 Mbit (1 MB) serial flash
- Interface: SPI with standard, Dual SPI, and Quad SPI (QPI) I/O modes
- Voltage: 2.7–3.6 V operation
- Speed: Read up to 104 MHz; Quad I/O read up to 104 MHz
- Memory organization: 256-byte page size; erase options include 4 KB sectors, 32 KB/64 KB blocks, and full chip erase
- Endurance/retention: ~100k program/erase cycles; data retention > ~20 years
- Power modes: Deep power-down and fast wake-up
- Protection: Hardware write protection; status register and block/sector protections
- Security: Block protection features and Quad Enable bit for Quad I/O operation
- Package: 8-pin RoHS-compliant SOIC/SOP (EIGR variant)
Note: For exact timings, voltages, and protection details, consult the datasheet.

- Pin count: 8 pins (8-pin SOP).
- Function: GD25LQ80CEIGR is an 8-Mbit serial SPI flash memory (non-volatile storage) used for firmware/data storage. Interface: SPI with pins for CS, SCLK, SI, SO, plus WP, HOLD, VCC, and GND.

- Manufacturer: GigaDevice Semiconductor Co., Ltd. (GigaDevice)
- What kind of company: A fabless semiconductor company based in Beijing, China, specializing in memory products, especially serial NOR and NAND flash memory ICs used in consumer electronics, automotive, and industrial applications.

GD25LQ80CEIGR is an 8‑Mbit SPI NOR flash. Common application areas:
- Firmware storage and execution for microcontrollers/SoCs (external program/library memory)
- Bootloaders and OTA firmware update storage
- External memory for MCUs with limited internal flash or needing expansion
- Data logging and configuration/parameter storage in IoT, industrial, automotive, and medical devices
- Storage for consumer electronics (printers, set‑top boxes, wearables, audio/video devices)
- High‑speed reads using dual/quad SPI interfaces where supported

8-pin SOP (SOIC-8) surface-mount package.