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GD25Q32BSIG 32Mbit SPI NOR Flash Memory IC SOP-8 – Pack of 2 (GD25Q32)
GD25Q32BSIG 32Mbit SPI NOR Flash Memory IC SOP-8 – Pack of 2 (GD25Q32)
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GD25Q32BSIG 32Mbit SPI NOR Flash Memory IC – SOP-8, Pack of 2
The GD25Q32BSIG from GigaDevice is a 32Mbit (4MB) SPI NOR flash memory IC – one of the most widely used flash storage devices in embedded systems, BIOS chips, router firmware, and IoT devices. With a standard SPI interface, 104MHz clock support, and 2.7V–3.6V supply range, it's compatible with virtually every microcontroller and embedded processor on the market. This 2-piece SOP-8 pack is ideal for BIOS replacement, firmware recovery, and embedded storage design.
Electrical Specifications
- Part Number: GD25Q32BSIG / GD25Q32 / GD25Q32CSIG
- Package: SOP-8 (SMD, 1.27mm pitch)
- Capacity: 32Mbit = 4MB = 4,194,304 bytes
- Interface: SPI (Standard, Dual, Quad SPI)
- Clock Frequency: Up to 104MHz (standard SPI), 208MHz (Dual/Quad)
- Supply Voltage: 2.7V – 3.6V
- Operating Current (read): ~10mA typical
- Standby Current: <1μA
- Page Size: 256 bytes
- Sector Size: 4KB (erasable independently)
- Block Size: 32KB / 64KB
- Endurance: 100,000 erase/write cycles (typical)
- Data Retention: 20 years (typical)
- Operating Temperature: −40°C to +85°C
SPI Interface – Pin Configuration (SOP-8)
- Pin 1: /CS – Chip Select (active LOW)
- Pin 2: DO (MISO) – Data Output / IO1
- Pin 3: /WP – Write Protect (pull HIGH to disable)
- Pin 4: GND – Ground
- Pin 5: DI (MOSI) – Data Input / IO0
- Pin 6: CLK – Serial Clock
- Pin 7: /HOLD – Hold (pull HIGH for normal operation)
- Pin 8: VCC – Supply (2.7V–3.6V)
Supported SPI Modes
- Standard SPI: 1-bit data (MOSI/MISO), up to 104MHz
- Dual SPI: 2-bit data (IO0/IO1), up to 208MHz effective
- Quad SPI (QSPI): 4-bit data (IO0–IO3), up to 416MHz effective
- Compatible with SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1)
Typical Applications
- BIOS / UEFI chip replacement: Motherboard, laptop, and router BIOS recovery
- Firmware storage: Embedded system firmware for microcontrollers and SoCs
- IoT devices: Configuration and firmware storage for ESP8266, ESP32, and similar
- Router / switch firmware: Network equipment firmware storage and recovery
- Data logging: Non-volatile storage for sensor data and event logs
- Bootloader storage: External flash for ARM Cortex-M and RISC-V systems
Compatible / Interchangeable Parts
The GD25Q32BSIG is pin-compatible and functionally interchangeable with: W25Q32JV (Winbond), MX25L3206E (Macronix), S25FL032P (Spansion/Cypress), EN25Q32B (EON). All share the same SOP-8 pinout and SPI command set.
Package Contents
- 2 × GD25Q32BSIG SOP-8 32Mbit SPI NOR flash memory ICs
4MB of reliable NOR flash in a standard SOP-8 package – the GD25Q32BSIG is the go-to choice for BIOS replacement, firmware storage, and embedded system non-volatile memory design.
