W9464G6KH
1M 4 BANKS 16 BITS DDR SDRAM
Table of Contents-
1.
2.
3.
4.
5.
6.
7.
8.
GENERAL DESCRIPTION ......................................................................................................... 4
FEATURES................................................................................................................................. 4
ORDER INFORMATION............................................................................................................. 4
KEY PARAMETERS ................................................................................................................... 5
PIN CONFIGURATION............................................................................................................... 6
PIN DESCRIPTION..................................................................................................................... 7
BLOCK DIAGRAM ...................................................................................................................... 8
FUNCTIONAL DESCRIPTION.................................................................................................... 9
8.1
8.2
Power Up Sequence....................................................................................................... 9
Command Function ...................................................................................................... 10
8.2.1
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
8.2.2
8.2.3
8.2.4
8.2.5
8.2.6
8.2.7
8.2.8
8.2.9
8.2.10
8.2.11
8.2.12
8.2.13
8.2.14
8.2.15
8.2.16
8.3
8.4
8.5
8.6
8.7
8.8
8.9
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
Publication Release Date: Aug. 12, 2013
- 1 -
Revision A01