參數(shù)資料
型號(hào): HY514400BT
廠商: Electronic Theatre Controls, Inc.
英文描述: 1Mx4, Fast Page mode
中文描述: 1Mx4,快速頁(yè)模式
文件頁(yè)數(shù): 7/8頁(yè)
文件大?。?/td> 100K
代理商: HY514400BT
Symbol
Parameter
Min
Max
Min
Max
Unit
Note
60ns
70ns
AC CHARACTERISTICS
Continued
HY514400B
Data-in set-up time
Data-in hold time
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)
t
DS
t
DH
t
REF
t
WCS
t
CWD
t
RWD
t
AWD
t
CSR
t
CHR
t
RPC
t
CPT
t
ROH
t
OEA
t
OED
t
OEZ
t
OEH
t
CPWD
t
RHCP
t
RASS
0
15
16
128
0
40
85
55
5
10
5
20
10
-
15
0
15
55
35
100
-
-
-
-
-
-
-
-
-
-
-
-
-
15
-
15
-
-
-
-
0
15
16
128
0
50
100
65
5
10
5
25
10
-
20
0
20
65
40
100
-
-
-
-
-
-
-
-
-
-
-
-
-
20
-
20
-
-
-
-
ns
ns
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
7
7
7
12
11
84
8
8
8
14
15
14
17
5
8
/WE to /RAS Precharge time (CBR cycle)
Write Command Hole time (test Mode In)
t
RPS
t
CHS
t
WRP
t
WRH
t
WTS
t
WTH
130
-50
10
10
10
10
-
-
-
-
-
-
150
-50
10
10
10
10
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
/RAS Precharge Time (Self refresh)
/CAS Hold Time (Self refresh)
Write Command Set-up time (Test Mode In)
Min
Max
0
15
16
128
0
35
70
45
5
10
5
20
10
-
15
0
15
50
30
100
-
-
-
-
-
-
-
-
-
-
-
-
-
15
-
15
-
-
-
-
120
-50
10
10
10
10
-
-
-
-
-
-
50ns
Data-in hold time Referenced to /RAS
t
DHR
45
-
55
-
ns
40
-
t
CWL
Write command to /CAS lead time
ns
15
-
20
-
16
15
-
1Mx4,FP DRAM
Rev.10 / Jan.97
/WE to /RAS Hold time (CBR cycle)
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