描述 Description

The Microchip Technology Inc. 23A1024/23LC1024 are 1 Mbit 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), a data in line (SI) and a data out line (SO). 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.

特性 Features

? SPI Bus Interface:

- SPI compatible

- SDI (dual) and SQI (quad) compatible

- 20 MHz Clock rate for all modes

? Low-Power CMOS Technology:

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

- Standby Current: 4 μA at +85°C

? Unlimited Read and Write Cycles

? Zero Write Time

? 128K 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