| 25C640 Description | | The 25C640 is a 64K-bit Serial Electrically Erasable PROM with memory accessed via a simple Serial Peripheral Interface (SPI™) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a chip select (CS) input. The 25C640 is capable of operation across a wide voltage range (2.5V to 5.5V) and extended temperature ranges (-40°C to + 125°C). The 25C640 is available in 8-pin PDIP, SOIC and TSSOP packages. | | 25C640 Vendor | | Microchip | | 25C640 Categories | | | 25C640 Datasheet and Application Notes | | | Parameter | Value | | Smart Card Support | Max. Clock Freq. | | 3 MHz | Write Speed (ms) | | 5 | Density (Organization) | | 64K bits (x8) | Cascade | | 0 | Write Protected | | Yes | Pb-Free Available | | Endurance | 1,000,000 | | Page Size (bytes) | 0 | | Op. Volt Min. (V) | 4.5 | | Op. Volt Max. (V) | 5.5 | | Products related to 25C640 | | 25LC640 25AA640 |
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