参数资料
型号: W9825G6JH-6I
厂商: Winbond Electronics
文件页数: 36/43页
文件大小: 0K
描述: IC SDRAM 256MBIT 54TSOPII
标准包装: 200
格式 - 存储器: RAM
存储器类型: SDRAM
存储容量: 256M(16Mx16)
速度: 166MHz
接口: 并联
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
封装/外壳: 54-TSOP(0.400",10.16mm 宽)
供应商设备封装: 54-TSOP II
包装: 托盘
W9825G6JH
11.15 Auto-precharge Timing (Read Cycle)
0
1
2
3
4
5
6
7
8
9
10
11
(1) CAS Latency=2
( a ) burst length = 1
Command
Read
AP
Act
t RP
DQ
( b ) burst length = 2
Q0
Command
Read
AP
Act
t RP
DQ
( c ) burst length = 4
Q0
Q1
Command
Read
AP
Act
t RP
DQ
Q0
Q1
Q2
Q3
( d ) burst length = 8
Command
Read
AP
t RP
Act
DQ
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
(2) CAS Latency=3
( a ) burst length = 1
Command
Read
AP
Act
t RP
DQ
( b ) burst length = 2
Q0
Command
Read
AP
Act
t RP
DQ
( c ) burst length = 4
Q0
Q1
Command
Read
AP
Act
t RP
DQ
Q0
Q1
Q2
Q3
( d ) burst length = 8
Command
Read
AP
Act
t RP
DQ
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Note:
Read
AP
Act
represents the Read with Auto precharge command.
represents the start of internal precharging.
represents the Bank Activ ate command.
When the Auto precharge command is asserted, the period f rom Bank Activ ate command to
t
the start of internal precgarging must be at least RAS (min).
Publication Release Date: Mar. 13, 2014
- 36 -
Revision: A09
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