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AS4C16M16S-7TCN PDF预览

AS4C16M16S-7TCN

更新时间: 2024-02-21 20:09:26
品牌 Logo 应用领域
ALLIED 时钟动态存储器ISM频段光电二极管内存集成电路
页数 文件大小 规格书
55页 1954K
描述
16MX16 SYNCHRONOUS DRAM, 5.4ns, PDSO54, 0.400 INCH, HALOGEN FREE AND ROHS COMPLIANT, PLASTIC, TSOPII-54

AS4C16M16S-7TCN 技术参数

是否Rohs认证: 符合生命周期:Active
零件包装代码:TSOP2包装说明:0.400 INCH, HALOGEN FREE AND ROHS COMPLIANT, PLASTIC, TSOPII-54
针数:54Reach Compliance Code:compliant
风险等级:5.66访问模式:FOUR BANK PAGE BURST
最长访问时间:5.4 ns其他特性:AUTO/SELF REFRESH
JESD-30 代码:R-PDSO-G54长度:22.22 mm
内存密度:268435456 bit内存集成电路类型:SYNCHRONOUS DRAM
内存宽度:16功能数量:1
端口数量:1端子数量:54
字数:16777216 words字数代码:16000000
工作模式:SYNCHRONOUS最高工作温度:70 °C
最低工作温度:组织:16MX16
封装主体材料:PLASTIC/EPOXY封装代码:TSOP2
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE
峰值回流温度(摄氏度):NOT SPECIFIED座面最大高度:1.2 mm
最大供电电压 (Vsup):3.6 V最小供电电压 (Vsup):3 V
标称供电电压 (Vsup):3.3 V表面贴装:YES
技术:CMOS温度等级:COMMERCIAL
端子形式:GULL WING端子节距:0.8 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:10.16 mmBase Number Matches:1

AS4C16M16S-7TCN 数据手册

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FEBRUARY 2011  
AS4C16M16S  
256Mb / 16M x 16 bit Synchronous DRAM (SDRAM)  
The read data appears on the DQs subject to the values on the DQM inputs two clocks earlier (i.e. DQM  
latency is two clocks for output buffers). A read burst without the auto precharge function may be interrupted  
by a subsequent Read or Write command to the same bank or the other active bank before the end of the burst  
length. It may be interrupted by a BankPrecharge/PrechargeAll command to the same bank too. The interrupt  
coming from the Read command can occur on any clock cycle following a previous Read command (refer to the  
following figure).  
The DQM inputs are used to avoid I/O contention on the DQ pins when the interrupt comes from a Write  
command. The DQMs must be asserted (HIGH) at least two clocks prior to the Write command to suppress  
data-out on the DQ pins. To guarantee the DQ pins against I/O contention, a single cycle with high-impedance  
on the DQ pins must occur between the last read data and the Write command (refer to the following three  
figures). If the data output of the burst read occurs at the second clock of the burst write, the DQMs must be  
asserted (HIGH) at least one clock prior to the Write command to avoid internal bus contention.  
7

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