Serial Flash Memory - GD25Q40CTIGR (4Mb, 120MHz)
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The GD25Q40C (4M-bit) Serial flash supports the standard Serial Peripheral Interface (SPI), and supports the
Dual/Quad SPI: Serial Clock, Chip Select, Serial Data I/O0 (SI), I/O1 (SO), I/O2 (WP#), and I/O3 (HOLD#). The Dual I/O data is transferred with speed of 240Mbits/s and the Quad I/O & Quad output data is transferred with speed of 480Mbits/s.
**Features:**
* 4M-bit Serial Flash
- 512K-byte
- 256 bytes per programmable page
* Standard, Dual, Quad SPI
* High Speed Clock Frequency
- 120MHz for fast read with 30PF load
- Dual I/O Data transfer up to 240Mbits/s
- Quad I/O Data transfer up to 480Mbits/s
* Software/Hardware Write Protection
* Minimum 100,000 Program/Erase Cycles
* Data Retention
- 20-year data retention typical
* Single Power Supply Voltage
- Full voltage range: 2.7~3.6V
* Low Power Consumption
- 1μA typical deep power down current
- 1μA typical standby current
**Documents:**
* [Datasheet](https://cdn.sparkfun.com/assets/9/c/2/2/d/DS-18076-4Mb_Flash_memory_-_GD25Q40CTIGR.pdf)