A3V56S30FTP View Datasheet(PDF) - Unspecified
Part Name
Description
Manufacturer
A3V56S30FTP Datasheet PDF : 40 Pages
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A3V56S30FTP
A3V56S40FTP
256M Single Data Rate Synchronous DRAM
OPERATING AC PARAMETER
(AC operating conditions unless otherwise noted)
Parameter
Symbol
Version
Unit Note
-6
-7
-75
Row active to row active delay
tRRD(min)
12
14
15
ns
1
RAS to CAS delay
tRCD(min)
18
20
20
ns
1
Row precharge time
tRP(min)
18
20
20
ns
1
Row active time
tRAS(min)
42
tRAS(max)
100
45
45
ns
1
100
100
us
Row cycle time
tRC(min)
60
63
65
ns
1
Last data in to row precharge
tRDL(min)
2
2
2
CLK
2
Last data in to Active delay
tDAL(min)
5
5
5
CLK-
Last data in to new col. address delay
tCDL(min)
1
1
1
CLK
2
Last data in to burst stop
tBDL(min)
1
1
1
CLK
2
Mode register set cycle time
tMRD(min)
2
2
2
CLK
Refresh interval time
tREF(max)
64
64
64
ms
Auto refresh cycle time
tARFC(min)
60
70
75
ns
NOTES:
1. The minimum number of clock cycles is determined by dividing the minimum time required with clock cycle time and then rounding off to the next
higher integer.
2. Minimum delay is required to complete write.
Revision 1.1
Page 8 / 39
Mar., 2010
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