Specifications
| Attribute | Value |
| Package / Case | Tape & Reel (TR) |
| Part Status | Active |
| Memory Type | Non-Volatile |
| Memory Format | FLASH |
| Technology | FLASH - NOR |
| Memory Size | 4Mb (512K x 8) |
| Memory Interface | SPI - Quad I/O |
| Clock Frequency | 104 MHz |
| Write Cycle Time - Word Page | 50µs, 3ms |
| Voltage - Supply | 2.3V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Overview
Description
GD25VQ40CEIGR is a 4-Mbit serial Flash memory from GigaDevice. It uses a SPI interface with Quad I/O (SQI/QPI) support for higher throughput. Supply voltage is 2.7–3.6 V (I/O voltage aligned to Vcc).
Key features:
- Memory: 512 KB organized as 256-byte pages; supports 4 KB sectors and 32/64 KB blocks plus bulk erase.
- Interfaces: SPI with Quad I/O options for fast reads.
- Operations: standard read, fast read, page program, sector/block erase, and bulk erase; WEL/WIP, QE bit to enable Quad I/O, hardware write protection, hold, and deep power-down.
- Endurance/retention: ~100k P/E cycles; data retention around 20 years.
- Temperature: industrial range, typically −40°C to +85°C.
- Package: 8-pin, Pb-free (SOP-8 style).
Common uses: boot firmware storage, code/data storage in microcontroller systems, firmware updates, and other embedded applications needing small, reliable flash.
Key features:
- Memory: 512 KB organized as 256-byte pages; supports 4 KB sectors and 32/64 KB blocks plus bulk erase.
- Interfaces: SPI with Quad I/O options for fast reads.
- Operations: standard read, fast read, page program, sector/block erase, and bulk erase; WEL/WIP, QE bit to enable Quad I/O, hardware write protection, hold, and deep power-down.
- Endurance/retention: ~100k P/E cycles; data retention around 20 years.
- Temperature: industrial range, typically −40°C to +85°C.
- Package: 8-pin, Pb-free (SOP-8 style).
Common uses: boot firmware storage, code/data storage in microcontroller systems, firmware updates, and other embedded applications needing small, reliable flash.
Equivalent
Equivalent 4 Mbit SPI NOR flash parts include:
- Winbond W25Q40BV
- Macronix MX25LQ040B
- Micron N25Q040A
- Spansion S25FL040P
- ISSI IS25LP040D
Note: verify exact voltage, package, timing, and Quad/Dual I/O support, as cross-reference details vary.
- Winbond W25Q40BV
- Macronix MX25LQ040B
- Micron N25Q040A
- Spansion S25FL040P
- ISSI IS25LP040D
Note: verify exact voltage, package, timing, and Quad/Dual I/O support, as cross-reference details vary.
Pinout
- Pin count: 8 pins (8-pin SOP).
- Function: Serial SPI flash memory device (GD25VQ40C family). Pinout (typical):
1) CS (Chip Select)
2) DO / MISO (Data Out)
3) WP (Write Protect, active low)
4) VCC (Power)
5) GND (Ground)
6) CLK (Serial Clock)
7) DI / MOSI (Data In)
8) HOLD (Active low)
WP and HOLD are active-low signals.
- Function: Serial SPI flash memory device (GD25VQ40C family). Pinout (typical):
1) CS (Chip Select)
2) DO / MISO (Data Out)
3) WP (Write Protect, active low)
4) VCC (Power)
5) GND (Ground)
6) CLK (Serial Clock)
7) DI / MOSI (Data In)
8) HOLD (Active low)
WP and HOLD are active-low signals.
Manufacturer
- Manufacturer: GigaDevice Semiconductor Inc. (GD), the maker of the GD25VQ40CEIGR.
- What kind of company: A fabless semiconductor company based in China that designs and markets flash memory and microcontroller ICs, using external foundries for manufacturing and selling globally.
- What kind of company: A fabless semiconductor company based in China that designs and markets flash memory and microcontroller ICs, using external foundries for manufacturing and selling globally.
Application
GD25VQ40CEIGR is a 40-Mbit Quad SPI serial flash memory. Typical applications:
- Embedded systems/MCUs: firmware storage, boot memory, code shadowing, data logging
- OTA/field firmware upgrades
- Automotive and industrial ECUs/controllers requiring non-volatile firmware storage
- Consumer electronics and IoT devices (cameras, wearables, set-top boxes, printers, routers)
- Data logging and compact non-volatile storage for portable devices
- Networking/storage devices needing high-density, fast-read non-volatile memory
(Uses Quad SPI for fast reads with low pin count.)
- Embedded systems/MCUs: firmware storage, boot memory, code shadowing, data logging
- OTA/field firmware upgrades
- Automotive and industrial ECUs/controllers requiring non-volatile firmware storage
- Consumer electronics and IoT devices (cameras, wearables, set-top boxes, printers, routers)
- Data logging and compact non-volatile storage for portable devices
- Networking/storage devices needing high-density, fast-read non-volatile memory
(Uses Quad SPI for fast reads with low pin count.)
Package
8-pin SOIC (SOIC-8) package, RoHS-compliant (reel/tape options available).
