ꢀ ꢁꢂ ꢃ ꢄ ꢅ ꢆꢇ ꢄ ꢈꢈ ꢉ ꢀ ꢁꢂ ꢃ ꢄꢅ ꢆꢇ ꢄꢈꢈꢊ
ꢋ ꢌꢍ ꢎꢏꢐꢑꢒ ꢌ ꢓꢀ ꢏꢌ ꢔꢌ ꢀꢕꢖ ꢂꢌ ꢔ ꢓꢕꢖ ꢑꢗ ꢒ ꢆꢎ ꢂ ꢂꢒ ꢗ ꢂ
SPRS073L − AUGUST 1998 − REVISED JUNE 2005
SYNCHRONOUS DRAM TIMING (CONTINUED)
ACTV
ECLKOUT
1
1
CEx
BE[3:0]
4
5
5
5
Bank Activate
EA[21:13]
EA[11:2]
4
Row Address
4
Row Address
EA12
ED[31:0]
12
12
†
†
AOE/SDRAS/SSOE
ARE/SDCAS/SSADS
†
AWE/SDWE/SSWE
†
ARE/SDCAS/SSADS, AWE/SDWE/SSWE, and AOE/SDRAS/SSOE operate as SDCAS, SDWE, and SDRAS, respectively, during SDRAM
accesses.
Figure 24. SDRAM ACTV Command
DCAB
ECLKOUT
1
1
CEx
BE[3:0]
EA[21:13, 11:2]
4
12
11
5
12
11
EA12
ED[31:0]
†
†
AOE/SDRAS/SSOE
ARE/SDCAS/SSADS
†
AWE/SDWE/SSWE
†
ARE/SDCAS/SSADS, AWE/SDWE/SSWE, and AOE/SDRAS/SSOE operate as SDCAS, SDWE, and SDRAS, respectively, during SDRAM
accesses.
Figure 25. SDRAM DCAB Command
57
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TI [ TEXAS INSTRUMENTS ]
