ONSEMI N01S818HAT22I

The N01S818HAT22I is a 1MB ultra low power serial SRAM in 8 pin TSSOP package. This serial SRAM includes several integrated memory devices including 1MB serially accessed static random access memory and internally organized as 128Kwords by 8 bits. It is designed and fabricated using ON Semiconductor’s advanced CMOS technology to provide both high speed performance and low power. The device operates with a single chip select (active-low CS) input and use a simple SPI protocol. In SPI mode, a single data-in (SI) and data-out (SO) line is used along with clock (SCK) to access data within the device. In DUAL mode, two multiplexed data-in/data-out (SIO0-SIO1) lines are used and in QUAD mode, four multiplexed data-in/data-out (SIO0-SIO3) lines are used with the clock to access the memory. The serial SRAM is designed to interface directly with a standard SPI common on many standard microcontrollers in default state.