Q67100-Q2056 查看數據表（PDF） - Siemens AG
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Q67100-Q2056 Datasheet PDF : 10 Pages
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HYM 321000S/GS-50/-60
1M × 32-Bit
AC Characteristics 5)6)
TA = 0 to 70 °C,VCC = 5 V ± 10 %, tT = 5 ns
Parameter
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
M16F
Symbol
Limit Values
Unit
-50
-60
min. max. min. max.
Note
tRC
90 –
110 –
ns
tRP
30 –
40 –
ns
tRAS
50 10k 60 10k ns
tCAS
13 10k 15 10k ns
tASR
0
–
0
–
ns
tRAH
8
–
10 –
ns
tASC
0
–
0
–
ns
tCAH
10 –
15 –
ns
tRCD
18
37
20
45
tRAD
13
25
15
30
ns
tRSH
13
15 –
ns
tCSH
50
60 –
ns
tCRP
5
–
5
–
ns
tT
3
50 3
50 ns 7
tREF
–
16 –
16 ms
Read Cycle
Access time from RAS
tRAC
–
50 –
60 ns 8, 9
Access time from CAS
tCAC
–
13 –
15 ns 8, 9
Access time from column address
tAA
–
25 –
30 ns 8,10
Column address to RAS lead time
tRAL
25 –
30 –
ns
Read command setup time
tRCS
0
–
0
–
ns
Read command hold time
tRCH
0
–
0
–
ns 11
Read command hold time referenced to
tRRH
0
–
0
–
ns 11
RAS
CAS to output in low-Z
Output buffer turn-off delay
tCLZ
0
tOFF
0
–
0
13 0
–
ns 8
15 ns 12
Semiconductor Group
7
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