HY5DU28422T

HY5DU28422T HY5DU28822T HY5DU281622T 2nd 128M DDR SDRAM HY5DU28422T HY5DU28822T HY5DU281622T Revision 1.3 April 2001 Rev. 1.3 / Apr. 2001 This document is a general product description and is subject to change without notice. 128Mb (x4, x8, x16) Double Data Rate SDRAM HY5DU28422T HY5DU28822T HY5DU281622T CONTENTS 1. 128M DDR SDRAM Brief Information --------------------------------------------------------------------- 3 1.1 Description 1.2 Feature 1.3 Ordering Information 2. Pin 2.1 2.2 2.3 & PKG Information --------------------------------------------------------------------------------------- 4 Pin Configuration Pin Description PKG Physical Dimension 3. Functional Block Diagram ----------------------------------------------------------------------------------- 7 4. Command Truth Table ---------------------------------------------------------------------------------------- 8 4.1 Simplified Command Truth Table 4.2 Write Mask Truth Table 4.3 Operation Command Truth Table 4.4 CKE Function Truth Table 5. Function Description ---------------------------------------------------------------------------------------- 15 5.1 Simplified State Diagram 5.2 Power up Sequence and Device Initialization 5.3 MRS / EMRS Definition 5.4 Device Operation 6. Absolute Maximum Rating -------------------------------------------------------------------------------- 33 7. DC Operating Condition ------------------------------------------------------------------------------------- 33 8. DC Charac...