參數(shù)資料
型號: HY57V56820BL
廠商: Hynix Semiconductor Inc.
英文描述: 4 Banks x 8M x 8Bit Synchronous DRAM
中文描述: 4銀行× 8米× 8位同步DRAM
文件頁數(shù): 8/12頁
文件大?。?/td> 153K
代理商: HY57V56820BL
HY57V56820B(L)T
Rev. 1.4/Mar. 02
8
AC CHARACTERISTICS II
Note :
1. A new command can be given tRRC after self refresh exit
Parameter
Symbol
-6
-K
-H
-8
-P
-S
Unit
Note
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
RAS Cycle Time
Operation
tRC
60
-
60
-
65
-
68
-
70
-
70
-
ns
Auto Refresh
tRRC
60
-
60
-
65
-
68
-
70
-
70
-
ns
RAS to CAS Delay
tRCD
18
-
15
-
20
-
20
-
20
-
20
-
ns
RAS Active Time
tRAS
42
100K
45
100K
45
100K
48
100K
50
100K
50
100K
ns
RAS Precharge Time
tRP
18
-
15
-
20
-
20
-
20
-
20
-
ns
RAS to RAS Bank Active Delay
tRRD
12
-
15
-
15
-
16
-
20
-
20
-
ns
CAS to CAS Delay
tCCD
1
-
1
-
1
-
1
-
1
-
1
-
CLK
Write Command to Data-In Delay
tWTL
0
-
0
-
0
-
0
-
0
-
0
-
CLK
Data-In to Precharge Command
tDPL
2
-
2
-
2
-
2
-
2
-
2
-
CLK
Data-In to Active Command
tDAL
5
-
5
-
5
-
5
-
5
-
5
-
CLK
DQM to Data-Out Hi-Z
tDQZ
2
-
2
-
2
-
2
-
2
-
2
-
CLK
DQM to Data-In Mask
tDQM
0
-
0
-
0
-
0
-
0
-
0
-
CLK
MRS to New Command
tMRD
2
-
2
-
2
-
2
-
2
-
2
-
CLK
Precharge to Data
Output Hi-Z
CAS Latency = 3
tPROZ3
3
-
3
-
3
-
3
-
3
-
3
-
CLK
CAS Latency = 2
tPROZ2
2
-
2
-
2
-
2
-
2
-
2
-
CLK
Power Down Exit Time
tPDE
1
-
1
-
1
-
1
-
1
-
1
-
CLK
Self Refresh Exit Time
tSRE
1
-
1
-
1
-
1
-
1
-
1
-
CLK
1
Refresh Time
tREF
-
64
-
64
-
64
-
64
-
64
-
64
ms
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HY57V56820BLT 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32Mx8|3.3V|8K|K|SDR SDRAM - 256M
HY57V56820BLT-6 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:4 Banks x 8M x 8Bit Synchronous DRAM
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HY57V56820BLT-H 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:4 Banks x 8M x 8Bit Synchronous DRAM
HY57V56820BLT-K 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:4 Banks x 8M x 8Bit Synchronous DRAM