The DS1200 Serial RAM Chip is a miniature read/write memory which can randomly access individual 8-bit strings (bytes) or sequentially access the entire 1024-bit contents (burst). Interface cost to a microprocessor is minimized by on-chip circuitry which permits data transfers with only three signals: CLOCK,RST, and DATA INPUT/ OUTPUT.
Nonvolatility can be achieved by connecting a battery of 2 to 4 volts at the battery input VBAT. A load of 0.5 mA should be used to size the external battery for the required data retention time. If nonvolatility is not required the VBAT pin should be grounded.
For a complete description of operating conditions, electrical characteristics, bus timing, and signal descriptions other than VBAT, see the DS1201 Electronic Tag 1024-Bit data sheet.
Required Field 
