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24LC21AT-I/SNROC PDF预览

24LC21AT-I/SNROC

更新时间: 2024-09-24 13:03:59
品牌 Logo 应用领域
美国微芯 - MICROCHIP 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
12页 84K
描述
128 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8, 3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8

24LC21AT-I/SNROC 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:SOIC
包装说明:3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.32.00.51风险等级:5.21
Is Samacsys:N其他特性:2-WIRE SERIAL INTERFACE
最大时钟频率 (fCLK):0.4 MHzJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:4.9 mm
内存密度:1024 bit内存集成电路类型:EEPROM
内存宽度:8湿度敏感等级:1
功能数量:1端子数量:8
字数:128 words字数代码:128
工作模式:SYNCHRONOUS最高工作温度:85 °C
最低工作温度:-40 °C组织:128X8
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:SERIAL峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.75 mm
串行总线类型:I2C最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):2.5 V标称供电电压 (Vsup):3 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:3.9 mm最长写入周期时间 (tWC):10 ms
Base Number Matches:1

24LC21AT-I/SNROC 数据手册

 浏览型号24LC21AT-I/SNROC的Datasheet PDF文件第2页浏览型号24LC21AT-I/SNROC的Datasheet PDF文件第3页浏览型号24LC21AT-I/SNROC的Datasheet PDF文件第4页浏览型号24LC21AT-I/SNROC的Datasheet PDF文件第5页浏览型号24LC21AT-I/SNROC的Datasheet PDF文件第6页浏览型号24LC21AT-I/SNROC的Datasheet PDF文件第7页 
24LC21  
2
1K 2.5V Dual Mode I C Serial EEPROM  
FEATURES  
PACKAGE TYPES  
PDIP  
• Single supply with operation down to 2.5V  
• Completely implements DDC1 /DDC2 inter-  
face for monitor identification  
NC  
NC  
1
2
8
7
VCC  
• Low power CMOS technology  
- 1 mA active current typical  
VCLK  
- 10 µA standby current typical at 5.5V  
NC  
3
4
6
5
SCL  
SDA  
2
• 2-wire serial interface bus, I C compatible  
VSS  
• Self-timed write cycle (including auto-erase)  
• Page-write buffer for up to 8 bytes  
• 100 kHz (2.5V) and 400 kHz (5V) compatibility  
• Factory programming (QTP) available  
• 1,000,000 erase/write cycles guaranteed  
• Data retention > 200 years  
SOIC  
1
2
8
7
NC  
VCC  
• 8-pin PDIP and SOIC package  
NC  
NC  
VCLK  
• Available for extended temperature ranges  
- Commercial (C):  
- Industrial (I):  
0˚C to +70˚C  
-40˚C to +85˚C  
3
4
5
5
SCL  
SDA  
VSS  
DESCRIPTION  
The Microchip Technology Inc. 24LC21 is a 128 x 8 bit  
Electrically Erasable PROM. This device is designed for  
use in applications requiring storage and serial trans-  
mission of configuration and control information. Two  
modes of operation have been implemented: Transmit  
Only Mode and Bi-Directional Mode. Upon power-up,  
the device will be in the Transmit Only Mode, sending a  
serial bit stream of the entire memory array contents,  
clocked by the VCLK pin. A valid high to low transition  
on the SCL pin will cause the device to enter the  
Bi-Directional Mode, with byte selectable read/write  
capability of the memory array. The 24LC21 is available  
in a standard 8-pin PDIP and SOIC package in both  
commercial and industrial temperature ranges.  
BLOCK DIAGRAM  
VCLK  
HV GENERATOR  
I/O  
CONTROL  
LOGIC  
MEMORY  
CONTROL  
LOGIC  
EEPROM  
ARRAY  
XDEC  
PAGE LATCHES  
SDA  
SCL  
YDEC  
VCC  
VSS  
SENSE AMP  
R/W CONTROL  
DDC is a trademark of the Video Electronics StandarDs Association.  
I2C is a trademark of Philips Corporation.  
1996 Microchip Technology Inc.  
DS21095F-page 1  
This document was created with FrameMaker 4 0 4  

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