Description:

The Microchip Technology Inc. 23X640 are 64 Kbit Serial SRAM devices. The memory is 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.

Features:

• Max. Clock 20 MHz

• Low-Power CMOS Technology:

- Read Current: 3 mA at 1 MHz

- Standby Current: 4 μA Max. at +85°C

• 8192 x 8-bit Organization

• 32-Byte Page

• HOLD pin

• Flexible Operating modes:

- Byte read and write

- Page mode (32 Byte Page)

- Sequential mode

• Sequential Read/Write

• High Reliability

• Temperature Ranges Supported:

- Industrial (I): -40°C to +85°C

- Automotive (E): -40°C to +125°C

• Pb-Free and RoHS Compliant, Halogen Free