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AS4SD4M16DG-10/XT 参数 Datasheet PDF下载

AS4SD4M16DG-10/XT图片预览
型号: AS4SD4M16DG-10/XT
PDF下载: 下载PDF文件 查看货源
内容描述: 4梅格×16 SDRAM同步动态随机存取存储 [4 Meg x 16 SDRAM Synchronous DRAM Memory]
分类和应用: 存储内存集成电路光电二极管动态存储器时钟
文件页数/大小: 50 页 / 1139 K
品牌: AUSTIN [ AUSTIN SEMICONDUCTOR ]
 浏览型号AS4SD4M16DG-10/XT的Datasheet PDF文件第30页浏览型号AS4SD4M16DG-10/XT的Datasheet PDF文件第31页浏览型号AS4SD4M16DG-10/XT的Datasheet PDF文件第32页浏览型号AS4SD4M16DG-10/XT的Datasheet PDF文件第33页浏览型号AS4SD4M16DG-10/XT的Datasheet PDF文件第35页浏览型号AS4SD4M16DG-10/XT的Datasheet PDF文件第36页浏览型号AS4SD4M16DG-10/XT的Datasheet PDF文件第37页浏览型号AS4SD4M16DG-10/XT的Datasheet PDF文件第38页  
SDRAM  
AS4SD4M16  
Austin Semiconductor, Inc.  
INITIALIZE AND LOAD MODE REGISTER2  
T0  
T1  
Tn+1  
t
To+1  
Tp+1  
Tp+2  
Tp+3  
t
CK  
t
CL  
CLK  
CH  
t
t
CKS CKH  
CKE  
t
t
t
t
t
t
CMS  
CMS  
CMS  
CMH  
CMH  
CMH  
AUTO  
REFRESH  
AUTO  
REFRESH  
LOAD MODE  
REGISTER  
NOP  
ACTIVE  
NOP  
PRECHARGE  
NOP NOP  
NOP NOP  
COMMAND  
DQM /  
DQML,  
DQMH  
t
t
t
AH  
AS  
CODE  
t
ROW  
ROW  
A0-A9, A11  
AS  
AH  
ALL BANKS  
CODE  
A10  
SINGLE BANK  
ALL  
BANKS  
BANK  
BA0, BA1  
DQ  
High-Z  
t
t
t
t
MRD  
T=100s  
RC  
RP  
RC  
Power-up:  
VDD and  
CLK stable  
Precharge  
all banks  
AUTOREFRESH  
AUTOREFRESH  
Program Mode Register 1,3,4  
Don’t Care  
Undefined  
TIMING PARAMETERS  
-8  
-10  
-8  
-10  
MIN  
1
MAX  
MIN  
MAX  
SYMBOL*  
tCKS  
MIN  
2
MAX  
MIN  
3
MAX  
UNITS  
ns  
SYMBOL*  
tAH  
UNITS  
ns  
1
3
tAS  
tCMH  
tCMS  
tMRD (3)  
tRC  
2
3
ns  
ns  
ns  
ns  
ns  
ns  
1
2
1
3
ns  
ns  
tCH  
3.5  
3.5  
10  
15  
1
tCK  
ns  
tCL  
2
2
3
tCK (3)  
tCK (2)  
tCKH  
80  
24  
90  
30  
8
tRP  
ns  
12  
1
* CAS latency indicated in parentheses.  
NOTE: 1. The Mode Register may be loaded prior to the AUTO REFRESH cycles if desired.  
2. If CS is HIGH at clock high time, all commands applied are NOP, with CKE a “Don’t Care”.  
3. JEDEC and PC100 specify three clocks.  
4. Outputs are guaranteed High-Z after command is issued.  
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.  
AS4SD4M16  
Rev. 1.5 10/01  
34  
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