W9464G6JH
1M 4 BANKS 16 BITS DDR SDRAM
Table of Contents-
1.
2.
3.
4.
5.
6.
7.
GENERAL DESCRIPTION ......................................................................................................... 4
FEATURES................................................................................................................................. 4
KEY PARAMETERS ................................................................................................................... 5
PIN CONFIGURATION............................................................................................................... 6
PIN DESCRIPTION..................................................................................................................... 7
BLOCK DIAGRAM ...................................................................................................................... 8
FUNCTIONAL DESCRIPTION.................................................................................................... 9
7.1
7.2
Power Up Sequence....................................................................................................... 9
Command Function ...................................................................................................... 10
7.2.1
Bank Activate Command ........................................................................... 10
Bank Precharge Command........................................................................ 10
Precharge All Command............................................................................ 10
Write Command......................................................................................... 10
Write with Auto-precharge Command........................................................ 10
Read Command......................................................................................... 10
Read with Auto-precharge Command ....................................................... 10
Mode Register Set Command.................................................................... 11
Extended Mode Register Set Command ................................................... 11
No-Operation Command............................................................................ 11
Burst Read Stop Command....................................................................... 11
Device Deselect Command ....................................................................... 11
Auto Refresh Command ............................................................................ 11
Self Refresh Entry Command .................................................................... 12
Self Refresh Exit Command....................................................................... 12
Data Write Enable /Disable Command...................................................... 12
7.2.2
7.2.3
7.2.4
7.2.5
7.2.6
7.2.7
7.2.8
7.2.9
7.2.10
7.2.11
7.2.12
7.2.13
7.2.14
7.2.15
7.2.16
7.3
7.4
7.5
7.6
7.7
7.8
7.9
Read Operation............................................................................................................. 12
Write Operation............................................................................................................. 13
Precharge ..................................................................................................................... 13
Burst Termination.......................................................................................................... 13
Refresh Operation......................................................................................................... 13
Power Down Mode ....................................................................................................... 14
Input Clock Frequency Change during Precharge Power Down Mode........................ 14
7.10 Mode Register Operation.............................................................................................. 14
Publication Release Date: Oct. 20, 2011
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Revision A02