VG36641641DT-6 Powerchip, VG36641641DT-6 Datasheet - Page 20

• Manufacturer Part Number: VG36641641DT-6
• Description: CMOS Synchronous Dynamic RAM
• Manufacturer: Powerchip

VIS
word input to the device.
8.2 Write with Auto Precharge
WRITE with AUTO PRECHRGE
Document :1G5-0177
During a write cycle, the auto precharge starts at the timing that is equal to the value of t
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
CAS latency = 2
DQ
Command
CLK
Command
CAS latency = 3
DQ
CAS latency
T0
2
3
WRITA B
WRITA B
DB0
DB0
T1
DB1
DB1
T
Read
2
-1
-2
VG36644041DT / VG36648041DT / VG36641641DT
Rev.5
DB2
DB2
T3
DB3
DB3
AUTO PRECHARGE starts
AUTO PRECHARGE starts
t
t
DPL
DPL
+ t
+ t
T4
CMOS Synchronous Dynamic RAM
DPL(min.)
DPL(min.)
Write
T5
DPL(min.)
T6
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after the last data
Hi - Z
Hi - Z_
Burst lengh = 4
T7
T8