HYM364020GS-60 Просмотр технического описания (PDF) - Siemens AG
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HYM364020GS-60 Datasheet PDF : 10 Pages
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HYM 364020S/GS-60
4M × 36-Bit
AC Characteristics 5)6)
TA = 0 to 70 °C,VCC = 5 V ± 10 %, tT = 5 ns
Parameter
Symbol
Limit Values
Unit Note
common parameters
Random read or write cycle time
RAS precharge time
RAS pulse width
CAS pulse width
Row address setup time
Row address hold time
Column address setup time
Column address hold time
RAS to CAS delay time
RAS to column address delay time
RAS hold time
CAS hold time
CAS to RAS precharge time
Transition time (rise and fall)
Refresh period
-60
min.
max.
tRC
110
–
ns
tRP
40
–
ns
tRAS
60
10k
ns
tCAS
15
10k
ns
tASR
0
–
ns
tRAH
10
–
ns
tASC
0
–
ns
tCAH
15
–
ns
tRCD
20
45
tRAD
15
30
ns
tRSH
15
–
ns
tCSH
60
–
ns
tCRP
5
–
ns
tT
3
50
ns 7
tREF
–
32
ms
Read Cycle
Access time from RAS
tRAC
–
60
ns 8, 9
Access time from CAS
tCAC
–
15
ns 8, 9
Access time from column address
tAA
–
30
ns 8,10
Column address to RAS lead time
tRAL
30
–
ns
Read command setup time
tRCS
0
–
ns
Read command hold time
tRCH
0
–
ns 11
Read command hold time referenced to
tRRH
0
–
ns 11
RAS
CAS to output in low-Z
Output buffer turn-off delay
tCLZ
0
tOFF
0
–
ns 8
15
ns 12
Semiconductor Group
7
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