HYM721000GS-70 データシートの表示（PDF） - Siemens AG
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HYM721000GS-70 Datasheet PDF : 11 Pages
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HYM721000/10GS-60/-70
1M x 72 ECC- Module
AC Characteristics (cont’d)(note: 5,6,7,8)
TA = 0 to 70 °C,VCC = 5.0 ± 10 %
Parameter
Symbol
-60
min. max.
CAS delay time from Din
Data to OE low delay
CAS high to data delay
OE high to data delay
tDZC
tDZO
tCDD
tODD
0
–
0
–
20 –
20 –
-70
min. max.
0
–
0
–
25 –
25 –
Unit Note
ns 18
ns 18
ns 9,19
ns 9,19
Write Cycle
Write command hold time
Write command pulse width
Write command setup time
Write command to RAS lead time
Write command to CAS lead time
Data setup time
Data hold time
tWCH
tWP
tWCS
tRWL
tCWL
tDS
tDH
15 –
10 –
2
–
20 –
15 –
-2
–
15 –
15 –
10 –
2
–
25 –
20 –
-2
–
20 –
ns 9
ns
ns 11,20
ns 9
ns
ns 10,21
ns 9,21
Read-Modify-Write Cycle
Read-write cycle time
tRWC
155 –
RAS to WE delay time
tRWD
82 –
CAS to WE delay time
tCWD
37 –
Column address to WE delay time
tAWD
52 –
OE command hold time
tOEH
13 –
185 –
97 –
47 –
62 –
18 –
ns 9
ns 11,21
ns 11,21
ns 11,21
ns 10
Fast Page Mode Cycle
Fast page mode cycle time
Access time from CAS precharge
RAS pulse width
CAS precharge to RAS Delay
tPC
40 –
45 –
ns
tCPA
–
40 –
45
ns 9,13
tRAS
60 200k 70 200k ns
tRHCP
40
–
45 –
ns 9
Semiconductor Group
8
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