VG3617161ET-6 Powerchip, VG3617161ET-6 Datasheet - Page 19

• Manufacturer Part Number: VG3617161ET-6
• Description: 1,048,576 x 16 - Bit CMOS Synchronous Dynamic RAM
• Manufacturer: Powerchip

VIS
WRITE with AUTO PRECHRGE
Document:1G5-0189
8.2 WRITE with AUTO PRECHARGE
In summary, the auto precharge cycle begins relative to a reference clock that indicates the last data word is
valid.
In the table below, minus means clocks before the reference; plus means clocks after the reference.
Remark WRITA means WRITE with AUTO PRECHARGE
CLK
CAS latency=2
DQ
CAS latency=3
DQ
Command
Command
the device
CAS latency
During a WRITA cycle, the AUTO PRECHARGE starts at t
2
3
T0
READ
-1
-2
WRITA B
WRITA B
DB0
DB0
T1
DB1
DB1
T2
+t
+t
WRITE
DPL(min.)
DPL(min)
Rev.2
DB2
DB2
T3
DPL(min.)
DB3
DB3
AUTO PRECHARGE starts
AUTO PRECHARGE starts
t
t
DPL
DPL
T4
CMOS Synchronous Dynamic RAM
after the last data word input to
T5
T6
1,048,576 x 16 - Bit
Page 19
T7
Burst lengh=4
Hi-Z_
Hi-Z_
VG3617161ET
T8