Description: The Microchip Technology Inc. 23X256 are 256 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. Features: • Max. Clock 20 MHz • Low-Power CMOS Technology: \- Read Current: 3 mA at 1 MHz \- Standby Current: 4 A Max. at +85°C • 32,768 x 8-bit Organization • 32-Byte Page • Sequential Read/Write • High Reliability • Temperature Ranges Supported: \- Industrial (I): -40°C to +85°C \- Automotive (E): -40°C to +125°C
The ON Semiconductor serial SRAM family includes several integrated memory devices including this 256 kb serially accessed Static Random Access Memory, internally organized as 32 k words by 8 bits. The devices are designed and fabricated using advanced CMOS technology to provide both high-speed performance and low power. The devices operate with a single chip select (CS) input and use a simple Serial Peripheral Interface (SPI) serial bus. A single data in and data out line is used along with a clock to access data within the devices. The N25S830HA devices include a HOLD pin that allows communication to the device to be paused. While paused, input transitions will be ignored. The devices can operate over a wide temperature range of -40°C to +85°C and can be available in several standard package offerings. Features ---