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DS2502Y PDF预览

DS2502Y

更新时间: 2024-11-08 22:40:35
品牌 Logo 应用领域
达拉斯 - DALLAS 存储
页数 文件大小 规格书
3页 50K
描述
1 kbit Add-Only Memory

DS2502Y 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:SO-8Reach Compliance Code:unknown
风险等级:5.69最长访问时间:15000 ns
其他特性:MICROLAN COMPATIBLEI/O 类型:COMMON
JESD-30 代码:R-PDSO-G8JESD-609代码:e0
内存密度:1024 bit内存集成电路类型:OTP ROM
内存宽度:8功能数量:1
端子数量:8字数:128 words
字数代码:128工作模式:ASYNCHRONOUS
最高工作温度:85 °C最低工作温度:-40 °C
组织:128X8输出特性:OPEN-DRAIN
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE并行/串行:SERIAL
电源:3/5 V认证状态:Not Qualified
子类别:Other Memory ICs最大供电电压 (Vsup):6 V
最小供电电压 (Vsup):2.8 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUALBase Number Matches:1

DS2502Y 数据手册

 浏览型号DS2502Y的Datasheet PDF文件第2页浏览型号DS2502Y的Datasheet PDF文件第3页 
DS2502/5/6-UNW  
UniqueWareTM Add-Only Memory  
www.dalsemi.com  
SPECIAL FEATURES  
§ 1024 bits, 16 kbits or 64 kbits Electrically  
PIN ASSIGNMENT  
TO-92/PR-35  
Programmable Read Only Memory (EPROM)  
communicates with the economy of one  
signal plus ground  
1
8
2
3
4
7
6
5
§ Unique, factory-lasered and tested 64-bit  
registration number (8-bit family code, 36-bit  
serialization, 12-bit UniqueWare identifier  
5E7H, 8-bit CRC-tester) assures absolute  
traceability because no two parts are alike.  
§ Built-in multidrop controller ensures  
compatibility with other MicroLAN products  
§ EPROM partitioned into 256-bit pages for  
randomly accessing packetized data records  
§ Each memory page can be permanently write-  
protected to prevent tampering  
§ Device is an “add only” memory where  
additional data can be programmed into  
EPROM without disturbing existing data  
§ Reduces control, address, data, power and  
programming signals to a single pin  
8-Pin SOIC  
See Mech.  
Drawings Section  
TSOC PACKAGE  
1
2
3
6
5
4
1 2 3  
TOP VIEW  
3.7 X 4.0 X 1.5 mm  
See Mech.  
Drawings Section  
BOTTOM VIEW  
See Mech.  
Drawings Section  
§ Directly connects to a single port pin of a  
microprocessor and communicates at up to  
16.3k bits per second  
§ Presence detector acknowledges when reader  
first applies voltage  
§ Low cost TO-92/PR-35 or 8-pin SOIC and  
TSOC surface mount packages  
§ Reads over a wide voltage range of 2.8V to  
6.0V from -40°C to +85°C  
PIN ASSIGNMENT  
TO-92/PR-35 TSOC  
SOIC  
Pin 1  
Pin 2  
Pin 3  
Pin 4  
Ground  
Data  
NC  
Ground NC  
Data  
NC  
NC  
NC  
NC  
Data  
Ground  
NC  
-----  
Pins 5 to 8 -----  
SILICON LABEL DESCRIPTION  
UniqueWare Add-Only Memories are factory programmed versions of the DS2502 (1024 bit), the  
DS2505 (16-kbit) and the DS2506 (64k bit) Add-Only Memories, respectively. They differ from the  
regular devices in their custom ROM family codes (see Ordering Information) and the UniqueWare  
Identifier 5E7 in place of the upper 12 bits of the standard serialization field. For technical details on the  
devices please refer to the DS2502, DS2505 and DS2506 data sheets.  
UniqueWare Add-Only Memories are only available preprogrammed with customer-specific and write-  
protected data. UniqueWare data fills at least one but no more than the first four pages of a device,  
1 of 3  
102099  

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