W9825G2JB-6I-TR Datasheet, PDF (1/42 Pages) Winbond – 4 M X 4 BANKS X 16 BITS SDRAM

W9825G6JB
4 M  4 BANKS  16 BITS SDRAM
Table of Contents-
1.
GENERAL DESCRIPTION ......................................................................................................... 3
2.
FEATURES ................................................................................................................................. 3
3.
ORDER INFORMATION ............................................................................................................. 3
4.
BALL CONFIGURATION ............................................................................................................ 4
5.
BALL DESCRIPTION .................................................................................................................. 5
6.
BLOCK DIAGRAM ...................................................................................................................... 6
7.
FUNCTIONAL DESCRIPTION.................................................................................................... 7
7.1 Power Up and Initialization ............................................................................................. 7
7.2 Programming Mode Register .......................................................................................... 7
7.3 Bank Activate Command ................................................................................................ 7
7.4 Read and Write Access Modes ...................................................................................... 7
7.5 Burst Read Command .................................................................................................... 8
7.6 Burst Write Command .................................................................................................... 8
7.7 Read Interrupted by a Read ........................................................................................... 8
7.8 Read Interrupted by a Write............................................................................................ 8
7.9 Write Interrupted by a Write............................................................................................ 8
7.10 Write Interrupted by a Read............................................................................................ 8
7.11 Burst Stop Command ..................................................................................................... 9
7.12 Addressing Sequence of Sequential Mode .................................................................... 9
7.13 Addressing Sequence of Interleave Mode...................................................................... 9
7.14 Auto-precharge Command ........................................................................................... 10
7.15 Precharge Command.................................................................................................... 10
7.16 Self Refresh Command ................................................................................................ 10
7.17 Power Down Mode........................................................................................................ 11
7.18 No Operation Command ............................................................................................... 11
7.19 Deselect Command ...................................................................................................... 11
7.20 Clock Suspend Mode.................................................................................................... 11
8.
OPERATION MODE ................................................................................................................. 12
9.
ELECTRICAL CHARACTERISTICS ......................................................................................... 13
9.1 Absolute Maximum Ratings .......................................................................................... 13
9.2 Recommended DC Operating Conditions .................................................................... 13
9.3 Capacitance .................................................................................................................. 14
9.4 DC Characteristics ........................................................................................................ 14
9.5 AC Characteristics and Operating Condition ................................................................ 15
10. TIMING WAVEFORMS ............................................................................................................. 17
10.1 Command Input Timing ................................................................................................ 17
10.2 Read Timing.................................................................................................................. 18
10.3 Control Timing of Input/Output Data ............................................................................. 19
Publication Release Date: Jul. 17, 2014
-1-
Revision: A05