32Kx8 Bit Ultra-Low Power Asynchronous Static RAM
NanoAmp Solutions, Inc. 1982 Zanker Road, San Jose, CA 95112 ph: 408-573-8878, FAX: 408-573-8877 www.nanoamp.com
ES62UX...
Description
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...
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