DS1609 Dual Port RAM

DS1609 Dual Port RAM

AD0–AD7 CE WE OE VCC GND – – – – – – Port address/data Port enable Write enable Output enable +5 volt supply Ground DESCRIPTION The DS1609 is a random access 256–byte dual port memory designed to connect two asyncronous address/data buses together with a common memory element. Both ports have unres.

Features

PIN ASSIGNMENT PORT A AD7A AD6A AD5A AD4A AD3A AD2A AD1A AD0A WEA CEA OEA GND 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 PORT B VCC OEB CEB WEB AD0B AD1B AD2B AD3B AD4B AD5B AD6B AD7B
• Totally asynchronous 256
  –byte dual port memory
• Multiplexed address low and data bus keeps pin count
• Dual port memory cell allows random access with minimum arbitration nals
• Each port has standard independent RAM control sig
• Fast access time
• Low power CMOS design
• 24
  –pin DIP or 24
  –pin SOIC surface mount package
• Both CMOS and TTL compatible
• Operating temperature of
  –40°C to .