The AT25DF641A-SH-B is a flash memory integrated circuit (IC) from Renesas Electronics America.

• Package: Tube
• Standard Package: 90 pcs
• Memory Size: 64Mbit
• Clock Frequency: 100 MHz
• Memory Interface: SPI
• Temperature Range: -40°C to 85°C
• Word Programming Write Cycle Time: 30μs
• Page Programming Write Cycle Time: 6ms

It is used for non-volatile memory storage in various electronic devices. With its compact size and reliable performance, the AT25DF641A-SH-B is an ideal choice for applications that require non-volatile memory storage, such as data logging, firmware storage, and code storage.