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Description:

The Microchip Technology Inc. 23A512/23LC512 are 512Kbit 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. Additionally, SDI (Serial Dual Interface) and SQI (Serial Quad Interface) is supported if your application needs faster data rates.

Features:

SPI-Compatible Bus Interface:

- 20 MHz Clock rate

- SPI/SDI/SQI mode

Low-Power CMOS Technology:

- Read Current: 3 mA at 5.5V, 20 MHz

- Standby Current: 4 ?A at +85°C

Unlimited Read and Write Cycles

Zero Write Time

64K x 8-bit Organization:

- 32-byte page

Byte, Page and Sequential mode for Reads and Writes

High Reliability

Temperature Ranges Supported:

RoHS Compliant

8-Lead SOIC, TSSOP and PDIP Packages

- Industrial (I): -40?C to +85?C

- Automotive (E): -40?C to +125?C