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UPD485505G-25 PDF预览

UPD485505G-25

更新时间: 2024-10-13 22:52:35
品牌 Logo 应用领域
日电电子 - NEC 存储光电二极管先进先出芯片
页数 文件大小 规格书
20页 174K
描述
LINE BUFFER 5K-WORD BY 8-BIT

UPD485505G-25 技术参数

生命周期:Obsolete包装说明:11.43 MM, PLASTIC, SOP-24
Reach Compliance Code:unknown风险等级:5.78
Is Samacsys:N最长访问时间:18 ns
周期时间:25 nsJESD-30 代码:R-PDSO-G24
内存密度:40960 bit内存宽度:8
功能数量:1端子数量:24
字数:5120 words字数代码:5000
工作模式:SYNCHRONOUS最高工作温度:70 °C
最低工作温度:组织:5KX8
输出特性:3-STATE可输出:NO
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
并行/串行:PARALLEL认证状态:Not Qualified
座面最大高度:2.3 mm最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):4.5 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
宽度:8.4 mmBase Number Matches:1

UPD485505G-25 数据手册

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DATA SHEET  
MOS INTEGRATED CIRCUIT  
µPD485505  
LINE BUFFER  
5K-WORD BY 8-BIT  
Description  
The µPD485505 is a 5,048 words by 8 bits high speed FIFO (First In First Out) line buffer. Its CMOS static circuitry  
provides high speed access and low power consumption.  
The µPD485505 can be used for one line delay and time axis conversion in high speed facsimile machines and  
digital copiers.  
Moreover, the µPD485505 can execute read and write operations independently on an asynchronous basis. Thus  
the µPD485505 is suitable as a buffer for data transfer between units with different transfer rates and as a buffer for  
the synchronization of multiple input signals. There are three versions, E, K, P, and L. This data sheet can be applied  
to the version P and L. These versions operate with different specifications. Each version is identified with its lot  
number (refer to 7. Example of Stamping).  
Features  
5,048 words by 8 bits  
Asynchronous read/write operations available  
Variable length delay bits; 21 to 5,048 bits (Cycle time: 25 ns)  
15 to 5,048 bits (Cycle time: 35 ns)  
Power supply voltage VCC = 5.0 V ± 0.5 V  
Suitable for sampling one line of A3 size paper (16 dots/mm)  
All input/output TTL compatible  
3-state output  
Full static operation; data hold time = infinity  
Ordering Information  
Part Number  
µPD485505G-25  
µPD485505G-35  
R/W Cycle Time  
Package  
25 ns  
35 ns  
24-pin plastic SOP  
(11.43 mm (450))  
The information in this document is subject to change without notice. Before using this document, please  
confirm that this is the latest version.  
Not all devices/types available in every country. Please check with local NEC representative for availability  
and additional information.  
Document No. M10059EJ7V0DSJ1 (7th edition)  
Date Published December 2000 N CP(K)  
Printed in Japan  
The mark shows major revised points.  
1994,1996  
©

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