AL422
AL422B 3M-Bits FIFO Field Memory
Contents:
1.0 Description _________________________________________________________________ 4
2.0 Features____________________________________________________________________ 4
3.0 Applications ________________________________________________________________ 4
4.0 Ordering Information_________________________________________________________ 4
5.0 Pinout Diagram _____________________________________________________________ 5
6.0 Pin Description ______________________________________________________________ 6
7.0 Electrical Characteristics______________________________________________________ 6
7.1 Absolute Maximum Ratings __________________________________________________ 6
7.2 Recommended Operating Conditions___________________________________________ 7
7.3 DC Characteristics _________________________________________________________ 7
7.4 AC Characteristics _________________________________________________________ 7
7.5 Timing Diagrams __________________________________________________________ 10
8.0 Functional Description ______________________________________________________ 14
8.1 Memory Operation ________________________________________________________ 15
8.2 5V and 3.3V applications ____________________________________________________ 16
8.3 Restrictions ______________________________________________________________ 17
8.3.1 Irregular Read/Write _________________________________________________________________ 17
8.3.2 Read Enable during Reset Cycles _______________________________________________________ 18
9.0 Mechanical Drawing ________________________________________________________ 19
© 1999~2006 by AverLogic Technologies, Corp.
Version 1.5
3
AVERLOGIC [ AVERLOGIC TECHNOLOGIES INC ]
