GD25Q256EFIRR

GD25Q256EFIRR is a 256‑Mbit serial flash memory from GigaDevice (GD25Q256E family). It provides nonvolatile storage for code and data with a SPI-compatible interface and supports Quad I/O (QPI) for higher data throughput.
Key points:
- Capacity/organization: 256 Mbit (32 MB); 256‑byte pages; 4 KB sectors; 64 KB blocks.
- Interface/speed: Standard SPI with Dual/Quad I/O and QPI modes; up to 104 MHz clock.
- Voltage/temperature: typically 2.7–3.6 V operation; industrial temperature range (extending from -40°C to +85°C in many variants).
- Package: 8‑pin (SOP) package suitable for SMT assembly.
- Features: fast read, write enable/disable, status/config registers, sector/block protection, deep power-down, and typical erase/program operations.
Applications: firmware storage and updates, boot memory, and configuration data in embedded systems.
Notes: erase before programming; enable Quad I/O when needed; reference the datasheet for exact electrical specs and command set. EFIRR suffix identifies the specific packaging/grade for this part.

GD25Q256EFIRR features (concise):
- Density: 256-Mbit (32 MB) serial flash
- Interface: SPI-compatible with standard, dual I/O, and Quad I/O modes
- Voltage: 2.7–3.6 V
- Speed: up to 104 MHz (fast/dual/quad reads)
- Addressing: 4-byte addressing for large address space
- Memory organization: 256-byte page size; erase with 4 KB sectors and 64 KB blocks; chip erase option
- Reliability: typical 100k program/erase cycles; data retention ~20 years
- Power: Deep power-down mode for low power; standard standby
- Security/Protection: hardware write protection, sector/block protection options
- Temperature: Industrial range, -40 to 85°C
- Package: 8-pin SOP; RoHS compliant; available in reel (RR) packaging
Notes: designed for high-speed SPI flash needs with versatile read options and robust protection features for embedded systems.

8-pin SOP (SOIC) package (8-pin, RoHS-compliant).

- Pin count: 8 pins (SOP-8 package).
- Function: 256-Mbit serial NOR flash memory with SPI interface for non-volatile data storage.
Pins (typical): CS# (chip select), CLK (clock), DI/MOSI (data in), DO/MISO (data out), WP# (write protect), HOLD# (hold), VCC (power), GND (ground).

- Manufacturer: GigaDevice Semiconductor (GD).
- What kind of company: A Chinese fabless semiconductor company that designs and markets flash memory, notably SPI NOR flash and related embedded memory products.

Typical applications of GD25Q256EFIRR (256-Mbit serial flash):
- Firmware storage and OTA/firmware updates for microcontrollers
- Program memory for MCU-based embedded systems and IoT devices
- Boot memory for bootloaders
- Data logging and configuration storage in consumer, industrial, and automotive electronics
- Automotive ECUs/infotainment systems
- Networking equipment (routers/switches), set-top boxes, printers, cameras, and other embedded devices

Common equivalents (256-Mbit SPI NOR flash):
- Winbond W25Q256FV/JV
- Macronix MX25L25645G (MX25L25645GMI-10)
- Puya P25Q256H
Note: verify voltage, speed, and package in the datasheets; GD25Q256E (same family) can also be considered if needed for cross-reference.