ELM GD25Q21B
The GD25Q21B Serial flash supports the standard Serial Peripheral Interface (SPI), and a high performance Dual/Quad output as well as Dual/Quad SPI: Serial Clock, Chip Select, Serial Data I/O0 (SI), I/O1 (SO), I/O2 (WP#), and I/O3 (HOLD#). DEVICE OPERATION SPI Mode Standard SPI The GD25Q21B feature a serial peripheral interface on 4 signals bus: Serial Clock (SCLK), Chip Select (CS#), Serial Data Input (SI) and Serial Data Output (SO).
| Part No. |
GD25Q21B |
| Datasheet |
GD25Q21B
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| Manufacturer |
 ELM |
| Description |
Uniform Sector Dual and Quad Serial Flash |
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FEATURES
♦ 2M-bit Serial Flash ♦ Program/Erase Speed - 256K-byte - 256 bytes per programmable page ♦ Standard, Dual, Quad SPI - Standard SPI: SCLK, CS#, SI, SO, WP#, HOLD# - Dual SPI: SCLK, CS#, IO0, IO1, WP#, HOLD# - Quad SPI: SCLK, CS#, IO0, IO1, IO2, IO3 ♦ High Speed Clock Frequency - 104MHz for fast read with 30PF load - Dual I/O Data transfer up to 208Mbits/s - Quad I/O Data transfer up to 416Mbits/s - Page Program time: 0.35ms typical - Sector Erase time: 50ms typical - Block Erase time: 0.18/0.25s typical - Chip Erase time: 0.8s typical ♦ Flexible Architecture - Sector of 4K-byte - Block of 32/64K-byte ♦ Low Power Consumption - 12mA maximum active current - 5μA maximum power down current ♦ Software/Hardware Write Protection ♦ Single Power Supply Voltage - Write protect all/portion of memory via software - Enable/Disable protection with WP# pin - Top or Bottom, Sector or Block selection - Full voltage range: 2.7~3.6V ♦ Minimum 100,000 Program/Erase Cycles ♦ Advanced security Feat...
