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Features

 Flexible 1.5V - 3.6V operating voltage

 524,288 x 8-bit SRAM organization

 Serial Peripheral Interface (SPI) mode

0 compatible

¨C Byte, Page and Sequential modes

¨C Supports Single, Dual and Quad

I/O read and write

¨C Fast operation: the whole memory

can be filled in 1,048,590 or

read in 1,048,591 cycles (Quad-

I/O SPI, Quad address mode)

¨C XHOLD and XWP pins

 8-bit Parallel Interface (Simplified 8080

and NAND FLASH Type Interface)

¨C Sequential read and write in 4 byte

blocks

¨C Fast operation, the whole memory

can be filled or read in 524,293 cycles

 Integrated Video Display Controller with

Video DAC

¨C Supports Component and Composite

video formats (NTSC, PAL, RGB

etc.)

¨C Fully configurable by user

¨C 9-bit Video DAC and 8x Video PLL

 High operating frequencies

¨C Up to 38 MHz for SPI

¨C Up to 40 MHz for 8-bit parallel interface

¨C Over 35 MHz for Video Display Controller

¨C (TBD) MHz for SRAM writes when

Video Display Controller enabled

 Active Low-power

¨C Read current 1.6 mA at 1 MHz (Single

I/O, SO=0, TA=+85C, VDD=3.3V)

 Industrial temperature range

¨C -40C to + 85C

 Pb-Free and RoHS compliant

Description

The VLSI Solution VS23S040D is an easy-touse

and versatile serial SRAM device. The

memory is accessed via an SPI compatible

serial bus. The device also contains Video

Display Controller, which can be configured

to continuously output analog composite video

from the memory array data to implement a

video frame buffer.