71V256SA Datasheet | IDT

Features - Ideal for high-performance processor secondary cache - mercial (0°C to +70°C) and Industrial (- 40°C to +85°C) temperature range options - Fast access times: - mercial and Industrial: 12/15/20ns - Low standby current (maximum): - 2m A full standby - Small packages for space-efficient layouts: - 28-pin 300 mil SOJ - 28-pin TSOP Type I - Produced with advanced high-performance CMOS technology - Inputs and outputs are LVTTL-patible - Single 3.3V(±0.3V) power supply - Industrial temperature range (- 40°C to +85°C) is available for selected speeds - Green parts available, see ordering information Description The IDT71V256SA is a 262,144-bit high-speed static RAM organized as 32K x 8. It is fabricated using a high-performance, high-reliability CMOS technology. The IDT71V256SA has outstanding low power characteristics while at the same time maintaining very high performance. Address access times of as fast as 12ns are ideal for 3.3V secondary cache in 3.3V desktop designs. When power management logic puts the IDT71V256SA in standby mode, its very low power characteristics contribute to extended battery life. By taking CS HIGH, the SRAM will automatically go to a low power standby mode and will remain in standby as long as CS remains HIGH. Furthermore, under full standby mode (CS at CMOS level, f=0), power consumption is guaranteed to always be less than 6.6m W and typically will be much smaller. The IDT71V256SA is packaged in a 28-pin 300 mil SOJ and a 28-pin 300 mil TSOP Type I. Functional Block Diagram A0 A14 I/O0 I/O7 CS OE WE ADDRESS DECODER INPUT DATA CIRCUIT CONTROL CIRCUIT 262,144 BIT MEMORY ARRAY I/O CONTROL VCC GND , 3101 drw 01 1 Jun.02.20 71V256SA 3.3V CMOS Static RAM 256K (32K x 8-Bit) Pin Configurations(1) A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I /O0 I /O1 I /O2...