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24AA256ISM

更新时间: 2024-11-23 22:38:27
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 178K
描述
256K I 2 C ⑩ CMOS Serial EEPROM

24AA256ISM 数据手册

 浏览型号24AA256ISM的Datasheet PDF文件第2页浏览型号24AA256ISM的Datasheet PDF文件第3页浏览型号24AA256ISM的Datasheet PDF文件第4页浏览型号24AA256ISM的Datasheet PDF文件第5页浏览型号24AA256ISM的Datasheet PDF文件第6页浏览型号24AA256ISM的Datasheet PDF文件第7页 
M
24AA256/24LC256  
2 ™  
256K I C CMOS Serial EEPROM  
DEVICE SELECTION TABLE  
PACKAGE TYPE  
PDIP  
Part  
Number  
VCC  
Range  
Max Clock  
Frequency  
Temp  
Ranges  
A0  
1
8
Vcc  
24AA256  
24LC256  
1.8-5.5V  
2.5-5.5V  
400 kHz  
I
A1  
A2  
2
3
4
7
6
5
WP  
400 kHz  
I, E  
SCL  
SDA  
100 kHz for VCC < 2.5V.  
100 kHz for E temperature range.  
Vss  
FEATURES  
• Low power CMOS technology  
SOIC  
- Maximum write current 3 mA at 5.5V  
- Maximum read current 400 µA at 5.5V  
- Standby current 100 nA typical at 5.5V  
• 2-wire serial interface bus, I2C compatible  
• Cascadable for up to eight devices  
• Self-timed ERASE/WRITE cycle  
• 64-byte page-write mode available  
• 5 ms max write-cycle time  
8
1
A0  
A1  
VCC  
WP  
7
6
5
2
3
4
SCL  
SDA  
A2  
VSS  
• Hardware write protect for entire array  
BLOCK DIAGRAM  
• Schmitt trigger inputs for noise suppression  
• 100,000 erase/write cycles guaranteed  
• Electrostatic discharge protection > 4000V  
• Data retention > 200 years  
WP  
A0…A2  
HV GENERATOR  
• 8-pin PDIP and SOIC (208 mil) packages  
Temperature ranges:  
I/O  
CONTROL  
LOGIC  
MEMORY  
CONTROL  
LOGIC  
EEPROM  
ARRAY  
XDEC  
- Industrial (I):  
-40°C to +85°C  
-40°C to +125°C  
- Automotive (E):  
PAGE LATCHES  
DESCRIPTION  
I/O  
SCL  
YDEC  
The Microchip Technology Inc. 24AA256/24LC256  
(24xx256*) is a 32K x 8 (256K bit) Serial Electrically  
Erasable PROM, capable of operation across a broad  
voltage range (1.8V to 5.5V). It has been developed for  
advanced, low power applications such as personal  
communications or data acquisition. This device also  
has a page-write capability of up to 64 bytes of data.  
This device is capable of both random and sequential  
reads up to the 256K boundary. Functional address  
lines allow up to eight devices on the same bus, for up  
to 2 Mbit address space. This device is available in the  
standard 8-pin plastic DIP, and 8-pin SOIC (208 mil)  
packages.  
SDA  
VCC  
VSS  
SENSE AMP  
R/W CONTROL  
I2C is a trademark of Philips Corporation.  
*24xx256 is used in this document as a generic part number for the 24AA256/24LC256 devices.  
1998 Microchip Technology Inc.  
DS21203C-page 1  

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