• The VLSI Solution VS23S010 is an easy to use, large capacity one megabit static RAM device. The memory can be accessed via a standard SPI compatible serial bus (1, 2 and 4-bit modes), or via an 8080-type 8-bit parallel bus similar to nand flash devices.
  • One of the main applications for the VS23S010 is microcontroller RAM extension. Internet streaming applications, which are becoming increasingly popular, will benefit from the large buffer memory provided by VS23S010.
  • In addition to being used purely as a memory storage device the VS23S010 also contains a pattern generation logic. When VS23S010's RAM is accessed through the SPI bus, it can simultaneously output a repeating memory data pattern through four of its parallel bus pins. This feature significantly reduces the computing requirement of a microcontroller for applications that require periodic output from the memory, such as a video frame buffer.



  • Flexible 1.5V - 3.6V operating voltage
  • 131,072 x 8-bit SRAM organization
  • Serial Peripheral Interface (SPI) compatible
    • SPI operating modes
    • Byte read and write
    • Sequential mode
  • XHOLD and XWP pins
  • Supports Single, Dual and Quad input read and write
  • Fast operation: the whole memory can be filled or read in 262176 cycles (Quad-I/O SPI)
  • 8-bit Parallel Interface (Simplified 8080 and NAND FLASH Type Interface)
    • Sequential read and write in 4 byte blocks
    • Fast operation, the whole memory can be filled in 131076 cycles and read in 131077 cycles
  • Integrated pattern generator
    • 4-bit and 2-bit output modes
    • Configurable frame length
    • IRQ output for synchronization
  • High operating frequencies
    • Up to 36 MHz for SPI
    • Over 48 MHz for pattern generator
    • FMCLK/3 MHz for SPI when pattern generator enabled
    • 15 MHz for 8-bit parallel interface
  • Low-power CMOS technology
    • Read current 130 µA at 1 MHz (SO=0, TA=+25°C, VDD=3.3V)
    • Standby current 35 µA (TA=+25°C, VDD=3.3V)
  • Industrial temperature range from -40°C to +85°C
  • Pb-Free and RoHS compliant package


Block Diagram