HYM72V8035GS-50 查看數據表（PDF） - Siemens AG
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HYM72V8035GS-50 Datasheet PDF : 11 Pages
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HYM72V8025/35GS-50/-60
8M x 72-ECC EDO-Module
AC Characteristics (contd’ ) (note: 5,6,7,8)
TA = 0 to 70 °C,VCC = 3.3 ± 0.3 V
Parameter
Symbol
-50
min. max.
-60
min. max.
Unit Note
Fast Page Mode Read-Modify-Write Cycle
Fast page mode read-write cycle time tPRWC
CAS precharge to WE
tCPWD
CAS-before-RAS Refresh Cycle
CAS setup time
tCSR
CAS hold time
tCHR
RAS to CAS precharge time
tRPC
Write to RAS precharge time
tWRP
Write hold time referenced to RAS
tWRH
Presence Detect Read Cycle
PDE to valid presence detect data
PDE inactive to presence detects
inactive
tPD
tPDOFF
60
–
70
–
ns 11
43
–
51
–
ns 11,21
12
–
12
–
ns 11
8
–
8
– ns 10
5
–
5
– ns
12
–
12
– ns 11
8
–
8
– ns 10
–
10
–
10 ns
0
10
0
10 ns
Semiconductor Group
9
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