DS-00437-GD25Q32E-Rev1.5 Functional Description

GD25Q32E is a 32Mbit (4MB) SPI NOR Flash serial memory chip launched by GigaDevice. It supports Standard/Dual/Quad SPI interface with a maximum clock frequency of 133MHz, featuring XiP (Execute-in-Place), 100,000 program/erase cycles, 20-year data retention, software/hardware write protection, OTP security area and other functions. It is suitable for embedded systems, IoT devices, MCU firmware storage, industrial control and other scenarios, and is available in SOP8, USON8 and other packages.DS-00437-GD25Q32E-Rev1.5 is the Rev 1.5 datasheet for GigaDevice GD25Q32E, a 32 Mbit SPI NOR Flash memory.

1. Basic Storage Specifications

• Capacity: 32 Mbit (4 MByte)

• Organization:

  • Uniform 4 KB sectors

  • Uniform 32 KB / 64 KB blocks

  • 256 bytes per page (page programming unit)

2. Interface & Speed

• Interface: Supports Standard SPI / Dual SPI / Quad SPI

  • Standard: SCLK, CS#, SI, SO, WP#, HOLD#

  • Dual/Quad: IO0~IO3 multiplexed as bidirectional data lines

• Max clock frequency: 133 MHz

• Bandwidth:

  • Dual I/O: 266 Mbps

  • Quad I/O: 532 Mbps

• Supports XiP (Execute-in-Place): high-speed continuous read, suitable for direct code execution from Flash by MCUs

3. Operating Performance (Typical)

• Page programming: 0.5 ms

• Sector erase (4 KB): 45 ms

• Block erase (32/64 KB): 0.15 / 0.25 s

• Chip erase: 12 s

• Endurance: ≥ 100,000 program/erase cycles

• Data retention: 20 years (typical)

4. Power & Power Consumption

• Supply voltage: Single 2.7V ~ 3.6V

• Standby current: 12 μA

• Deep Power-Down current: 1 μA

5. Security & Protection

• Software/hardware write protection:

  • Block protection range configured via status register bits BP0~BP4

  • Hardware lock of protection bits via WP# pin

  • Supports top/bottom block protection

• Unique ID: 128-bit unique chip ID

• Security registers: 3×1024-byte OTP security area (lockable)

• SFDP register: compliant with standard parameter table

6. Control Functions

• Write Enable / Write Disable (WREN/WRDI)

• Read Status Register / Write Status Register (RDSR/WRSR)

• Erase / Program Suspend and Resume

• HOLD# pause: suspends communication without deselecting the device

• Software reset

7. Package & Temperature

• Packages: SOP8, USON8, WSON8, TFBGA24, etc.

• Temperature range:

  • Industrial: -40℃ ~ +85℃

  • Extended temperature: -40℃ ~ +105℃ / 125℃

8. Typical Applications

• Embedded firmware, BIOS/UEFI, configuration data storage

• IoT devices, MCUs, set-top boxes, gateways, industrial control, consumer electronics

• Non-volatile code/data storage requiring high speed, low power consumption, and small package