A2V64S40 データシートの表示（PDF） - Unspecified
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A2V64S40 Datasheet PDF : 79 Pages
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Powerchip Semiconductor Corporation
A2V64S40CTP
64M Single Data Rate Synchronous DRAM
OPERATING AC PARAMETER
(AC operating conditions unless otherwise noted)
Parameter
Symbol
Version
Unit
Note
-5
-6
-7
-75
Row active to row active delay
tRRD(min)
10
12
14
15
ns
1
RAS to CAS delay
tRCD(min)
15
18
21
21
ns
1
Row precharge time
tRP(min)
15
18
21
21
ns
1
Row active time
tRAS(min)
tRAS(max)
40
42
45
ns
1
100 100 100 100
us
Row cycle time
tRC(min)
58
63
67.5
ns
1
Last data in to row precharge
tRDL(min)
2
2
2
2
CLK
2
Last data in to Active delay
tDAL(min)
-
Last data in to new col. address delay
tCDL(min)
1
1
1
1
CLK
2
Last data in to burst stop
tBDL(min)
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1
1
1
1
CLK
2
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 1.0
Page 6/38
March, 2005
Datasheet pdf - http://www.DataSheet4U.net/
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