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DS28EC20+ PDF预览

DS28EC20+

更新时间: 2024-11-05 06:54:39
品牌 Logo 应用领域
美信 - MAXIM 存储内存集成电路PC可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数 文件大小 规格书
27页 428K
描述
20Kb 1-Wire EEPROM

DS28EC20+ 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Active零件包装代码:TO-92
包装说明:, SIP3,.1,50针数:3
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.32.00.51Factory Lead Time:12 weeks
风险等级:1.48Samacsys Confidence:4
Samacsys Status:ReleasedSamacsys PartID:387493
Samacsys Pin Count:3Samacsys Part Category:Integrated Circuit
Samacsys Package Category:OtherSamacsys Footprint Name:TO-92 21-0248_2020
Samacsys Released Date:2019-10-01 14:38:46Is Samacsys:N
数据保留时间-最小值:40耐久性:200000 Write/Erase Cycles
JESD-30 代码:O-XBCY-W3JESD-609代码:e3
内存密度:2097152 bit内存集成电路类型:EEPROM
内存宽度:64功能数量:1
端子数量:3字数:32768 words
字数代码:32000工作模式:ASYNCHRONOUS
最高工作温度:85 °C最低工作温度:-40 °C
组织:32KX64封装主体材料:UNSPECIFIED
封装等效代码:SIP3,.1,50封装形状:ROUND
封装形式:CYLINDRICAL并行/串行:SERIAL
峰值回流温度(摄氏度):260电源:5 V
认证状态:Not Qualified串行总线类型:1-WIRE
子类别:EEPROMs最大供电电压 (Vsup):5.25 V
最小供电电压 (Vsup):4.75 V标称供电电压 (Vsup):5 V
表面贴装:NO技术:CMOS
温度等级:INDUSTRIAL端子面层:MATTE TIN
端子形式:WIRE端子节距:1.27 mm
端子位置:BOTTOM处于峰值回流温度下的最长时间:30
Base Number Matches:1

DS28EC20+ 数据手册

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DS28EC20  
20Kb 1-Wire EEPROM  
www.maxim-ic.com  
GENERAL DESCRIPTION  
FEATURES  
The DS28EC20 is a 20480-bit, 1-Wire® EEPROM  
organized as 80 memory pages of 256 bits each. An  
additional page is set aside for control functions.  
Data is written to a 32-byte scratchpad, verified, and  
then copied to the EEPROM memory. As a special  
feature, blocks of eight memory pages can be write  
protected or put in EPROM-Emulation mode, where  
bits can only be changed from a 1 to a 0 state. The  
DS28EC20 communicates over the single-conductor  
1-Wire bus. The communication follows the standard  
1-Wire protocol. Each device has its own unalterable  
and unique 64-bit ROM registration number that is  
factory lasered into the chip. The registration number  
is used to address the device in a multidrop 1-Wire  
net environment.  
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20480 Bits of Nonvolatile (NV) EEPROM  
Partitioned into Eighty 256-Bit Pages  
Individual 8-Page Groups of Memory Pages  
(Blocks) can be Permanently Write Protected or  
Put in OTP EPROM-Emulation Mode ("Write to  
0")  
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Read and Write Access Highly Backward-  
Compatible to Legacy Devices (e.g., DS2433)  
256-Bit Scratchpad with Strict Read/Write  
Protocols Ensures Integrity of Data Transfer  
200k Write/Erase Cycle Endurance at +25°C  
Unique Factory-Programmed 64-Bit Registration  
Number Ensures Error-Free Device Selection  
and Absolute Part Identity  
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Switchpoint Hysteresis and Filtering to Optimize  
Performance in the Presence of Noise  
Communicates to Host at 15.4kbps or 125kbps  
Using 1-Wire Protocol  
APPLICATIONS  
Device Authentication  
IEEE 1451.4 Sensor TEDS  
Ink/Toner Cartridges  
Medical Sensors  
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Low-Cost TO-92 Package  
Operating Range: 5V ±5%, -40°C to +85°C  
Operating Range: 3.3V ±5%, 0°C to +70°C  
(Standard Speed only)  
PCB Identification  
Wireless Base Stations  
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IEC 1000-4-2 Level 4 ESD Protection (8kV  
Contact, 15kV Air, Typical) for I/O Pin  
ORDERING INFORMATION  
PART  
TEMP RANGE PIN-PACKAGE  
PIN CONFIGURATION  
DS28EC20+  
DS28EC20+T  
DS28EC20P+  
DS28EC20P+T  
3 TO-92  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
3 TO-92, T&R  
6 TSOC  
DALLAS  
28EC20  
TO-92  
PIN 1 ---------- GND  
PIN 2 ---------- I/O  
PIN 3 ---------- N.C.  
6 TSOC, T&R  
+ Denotes a lead-free package.  
T = tape and reel  
FOR TAPE-AND-  
REEL THE LEADS  
ARE FORMED TO  
100 MILS (2.54mm)  
SPACING VERSUS  
50 MILS (1.27mm)  
FOR BULK.  
TYPICAL OPERATING CIRCUIT  
VCC  
RPUP (300Ω  
to 2.2kΩ)  
1
2
3
PX.Y  
I/O  
BOTTOM VIEW  
1
2
3
DS28EC20  
GND  
µC  
TSOC, Top View  
PIN 1 ---------- N.C.  
PIN 2 ---------- I/O  
PIN 3 ---------- GND  
PIN 4, 5, 6 ---- N.C.  
1
2
3
6
5
4
Commands, bytes, and modes are capitalized for clarity.  
1-Wire is a registered trademark of Maxim Integrated Products, Inc.  
1 of 27  
REV: 040109  

DS28EC20+ 替代型号

型号 品牌 替代类型 描述 数据表
DS28EC20+T MAXIM

完全替代

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