23LCV1024

23LCV1024 1 Mbit SPI Serial SRAM with Battery Backup and SDI Interface Device Selection Table Part Number VCC Range 23LCV1024 2.5V-5.5V Dual I/O (SDI) Battery Backup Maximum Clock Frequency Yes Yes 20 MHz Packages P, SN, ST Features SPI-Compatible Bus Interface: - 20 MHz clock rate - SPI/SDI mode 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 External Battery Backup Support Zero Write Time 128K x 8-bit Organization: - 32-byte page Byte, Page and Sequential Mode for Reads and Writes High Reliability Temperature Range Supported: - Industrial: -40°C to +85°C Pb-Free and RoHS Compliant, Halogen Free Packages 8-Lead PDIP 8-Lead SOIC 8-Lead TSSOP Description The Microchip Technology Inc. 23LCV1024 is a 1-Mbit Serial SRAM device. 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, Serial Dual Interface (SDI) is supported if the application needs faster data rates. This device also supports unlimited reads and writes to the memory array and supports data backup via an external battery/coin cell connected to VBAT (pin 7). Package Types (not to scale) PDIP/SOIC/TSSOP CS 1 SO/SIO1 2 NC 3 Vss 4 8 Vcc 7 VBAT 6 SCK 5 SI/SIO0 Pin Function Table Nam...