国产精品成人VA在线观看-国产乱妇乱子视频在播放-国产日韩精品一区二区三区在线-国模精品一区二区三区

參數資料
型號: W986408AH
廠商: WINBOND ELECTRONICS CORP
英文描述: 2M words x 8 bit x 4 Banks SDRAM(2M字 x 8 位 x 4 組同步動態RAM)
中文描述: 200萬字× 8位× 4個銀行的SDRAM(200萬字× 8位× 4組同步動態RAM)的
文件頁數: 6/45頁
文件大小: 1337K
代理商: W986408AH
W986408AH
2M x 8 bit x 4 Banks SDRAM
Revision 1.2 Publication Release Date: May, 1998
- 6 -
AC CHARACTERISTICS AND OPERATING CONDITION
(Vcc=3.3V
±
0.3V, Ta=0
°
to 70
°
C Notes:5, 6, 7)
-8H
-8N
-10
SYMBOL
t
RC
t
RAS
t
RCD
t
CCD
t
RP
t
RRD
t
WR
PARAMETER
Ref/Active to Ref/Active Command Period
Active to precharge Command Period
Active to Read/Write Command Delay Time
Read/Write(a) to Read/Write(b)Command
Precharge to Active Command Period
Active(a) to Active(b) Command Period
Write Recovery Time
MIN
68
48
20
1
20
20
10
8
10
8
3
3
MAX
MIN
72
48
20
1
20
20
12
10
12
10
3
3
MAX
MIN
90
60
30
1
30
20
15
10
15
10
3
3
MAX
UNIT
100000
100000
100000
ns
cycle
CL*=2
CL*=3
CL*=2
CL*=3
t
CK
CLK Cycle Time
1000
1000
1000
1000
1000
1000
t
CH
t
CL
t
AC
CLK High Level
CLK Low Level
Access Time from CLK
CL*=2
CL*=3
6
6
7
6
9
8
ns
t
OH
t
HZ
t
LZ
t
SB
t
T
t
DS
t
DH
t
AS
t
AH
t
CKS
t
CKH
t
CMS
t
CMH
t
REF
t
RSC
Output Data Hold Time
Output Data High Impedance Time
Output Data Low Impedance Time
Power Down Mode Entry Time
Transition Time of CLK (Rise and Fall)
Data-in-Set-up Time
Data-in Hold Time
Address Set-up Time
Address Hold Time
CKE Set-up Time
CKE Hold Time
Command Set-up Time
Command Hold Time
Refresh Time
Mode register Set Cycle Time
3
3
0
0
3
3
0
0
3
3
0
0
8
8
10
8
10
8
10
10
10
0.5
2
1
2
1
2
1
2
1
0.5
2
1
2
1
2
1
2
1
0.5
3
1
3
1
3
1
3
1
64
64
64
ms
ns
16
16
20
(CL=CAS Latency)
相關PDF資料
PDF描述
W986408BH 2M words x 8 bit x 4 Banks SDRAM(2M字 x 8 位 x 4 組同步動態RAM)
W986408CH 2M x 8BIT x 4 BANKS SDRAM
W986408CH-75 x8 SDRAM
W986408CH-8H x8 SDRAM
W986416AH 1M words x 16 bit x 4 Banks SDRAM(1M字 x 16 位 x 4 組同步動態RAM)
相關代理商/技術參數
參數描述
W986408CH 制造商:WINBOND 制造商全稱:Winbond 功能描述:2M x 8BIT x 4 BANKS SDRAM
W986408CH-75 制造商:WINBOND 制造商全稱:Winbond 功能描述:x8 SDRAM
W986408CH-8H 制造商:WINBOND 制造商全稱:Winbond 功能描述:x8 SDRAM
W986416CH 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M x 16 BIT x 4 BANKS SDRAM
W986416CH-6 制造商:WINBOND 制造商全稱:Winbond 功能描述:x16 SDRAM