一、FEATURES 

1.Fast access time : 35/55/70ns 

2.Low power consumption:

  Operating current : 20/15/10mA (TYP.)

  Standby current : 1μA (TYP.) 

3.Single 2.7~5.5V power supply 

4.All inputs and outputs TTL compatible 

5.Fully static operation 

6.Tri-state output 

7.Data retention voltage : 1.5V (MIN.) 

8.Green package available 

9.Package : 28-pin 600 mil P-DIP、28-pin 330 mil SOP、

                    28-pin 8mm x 13.4mm STSOP、28-pin 300 mil Skinny P-DIP