HY514400B Datasheet, PDF (7/8 Pages) List of Unclassifed Manufacturers – 1Mx4, Fast Page mode

HY514400B
AC CHARACTERISTICS
Continued
Symbol
Parameter
tCWL
tDS
tDH
tDHR
tREF
tWCS
tCWD
tRWD
tAWD
tCSR
tCHR
tRPC
tCPT
tROH
tOEA
tOED
tOEZ
tOEH
tCPWD
tRHCP
tRASS
tRPS
tCHS
tWRP
tWRH
tWTS
tWTH
Write command to /CAS lead time
Data-in set-up time
Data-in hold time
Data-in hold time Referenced to /RAS
Refresh period(1024 cycles)
Refresh period(SL-part)
Write command set-up time
/CAS to /WE delay time
/RAS to /WE delay time
Column address to /WE delay time
/CAS set-up time(CBR cycle)
/CAS hold time(CBR cycle)
/RAS to /CAS precharge time
/CAS precharge time(CBR counter test)
/RAS hold time referenced to /OE
/OE access time
/OE to data delay
Output buffer turn-off delay time from /OE
/OE command hold time
/WE delay time from /CAS precharge
/RAS hold time from /CAS precharge
/RAS pulse width(self refresh)
/RAS Precharge Time (Self refresh)
/CAS Hold Time (Self refresh)
/WE to /RAS Precharge time (CBR cycle)
/WE to /RAS Hold time (CBR cycle)
Write Command Set-up time (Test Mode In)
Write Command Hole time (test Mode In)
50ns
Min Max
15
-
0
-
15
-
40
-
16
-
128 -
0
-
35
-
70
-
45
-
5
-
10
-
5
-
20
-
10
-
-
15
15
-
0 15
15
-
50
-
30
-
100 -
120 -
-50 -
10
-
10
-
10
-
10
-
60ns
Min Max
15
-
0
-
15
-
45
-
16
-
128 -
0
-
40
-
85
-
55
-
5
-
10
-
5
-
20
-
10
-
-
15
15
-
0 15
15
-
55
-
35
-
100 -
130 -
-50 -
10
-
10
-
10
-
10
-
70ns
Min Max
20
-
0
-
15
-
55
-
16
-
128 -
0
-
50
-
100 -
65
-
5
-
10
-
5
-
25
-
10
-
-
20
20
-
0 20
20
-
65
-
40
-
100 -
150 -
-50 -
10
-
10
-
10
-
10
-
Unit
ns
ns
ns
ns
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Note
16
7
7
12
11
84
8
8
8
14
15
14
17
5
8
1Mx4,FP DRAM
Rev.10 / Jan.97
7