ES62UL256

NanoAmp Solutions, Inc. 1982 Zanker Road, San Jose, CA 95112 ph: 408-573-8878, FAX: 408-573-8877 www.nanoamp.com ES62UXX256 Family ES62UL256 Family 32Kx8 Bit Ultra-Low Power Asynchronous Static RAM Overview The ES62UXX256 is an integrated memory device containing a low power 256 Kbit Static Random Access Memory organized as 32,768 words by 8 bits. The device is fabricated using an advanced CMOS process and NanoAmp’s high-speed/lowpower circuit technology. This device is also designed for very low voltage operation making it quite suitable for battery powered devices having both very low operating and standby currents. The device pinout is compatible with other standard 32k x 8 SRAMs. The ES62UXX256 comes in two speed grades (45 and 25 nsec) and two very broad voltage ranges. Features Operating Voltage 1.5 to 3.6 Volts Extended Temperature Range -20 o to +80oC Fast Cycle Time TACC < 25 nS @ 3V Very Low Operating Current ICC < 0.8 mA typical at 2V, 1 Mhz Very Low Standby Current ISB = 50 nA typical FIGURE 1: Operating Envelope Operating Voltage Range 50 Typical ICC (mA) 40 30 Speed/Power 40 Mhz 20 Mhz 20 10 1 Mhz 5 Mhz 0 1 2 VCC (V) 3 4 Stock No. 23003-03 4/99 1 NanoAmp Solutions FIGURE 2: Pin Configurations ES62UL256 Family A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 I/O1 I/O2 VSS 1 2 3 4 28 27 26 25 VCC WE A13 A8 A9 A11 OE A10 CE I/O7 I/O6 I/O5 I/O4 I/O3 OE A11 A9 A8 A13 WE VCC A14 A12 A7 A6 A5 A4 A3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23...