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AT24C256B-10PI-1.8 PDF预览

AT24C256B-10PI-1.8

更新时间: 2024-11-19 03:01:51
品牌 Logo 应用领域
爱特美尔 - ATMEL 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光电二极管
页数 文件大小 规格书
18页 306K
描述
EEPROM, 32KX8, Serial, CMOS, PDIP8, 0.300 INCH, PLASTIC, MS-001BA, DIP-8

AT24C256B-10PI-1.8 数据手册

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Features  
Low-voltage and Standard-voltage Operation  
– 2.7 (VCC = 2.7V to 5.5V)  
– 1.8 (VCC = 1.8V to 3.6V)  
Internally Organized as 32,768 x 8  
2-wire Serial Interface  
Schmitt Trigger, Filtered Inputs for Noise Suppression  
Bidirectional Data Transfer Protocol  
1 MHz (5V), 400 kHz (2.7V, 2.5V) and 100 kHz (1.8V) Compatibility  
Write Protect Pin for Hardware and Software Data Protection  
64-byte Page Write Mode (Partial Page Writes Allowed)  
Self-timed Write Cycle (5 ms Max)  
2-wire Serial  
EEPROM  
High Reliability  
– Endurance: One Million Write Cycles  
– Data Retention: 40 Years  
Extended Temperature and Lead-free/Halogen-free Devices Available  
8-lead JEDEC PDIP, 8-lead JEDEC 12  
256K (32,768 x 8)  
SOIC, 8-lead MAP, 8-lead TSSOP and 8-ball dBGA2TM Packages  
Description  
AT24C256B  
The AT24C256B provides 262,144 bits of serial electrically erasable and programma-  
ble read only memory (EEPROM) organized as 32,768 words of 8 bits each. The  
device’s cascadable feature allows up to 8 devices to share a com mon 2-wire bus.  
The device is optimized for use in many industrial and commercial applications where  
low power and low voltage operation are essential. The devices are available in  
space-saving 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead MAP, 8-lead TSSOP  
and 8-ball dBGA2 packages. In addition, the entire family is available in 2.7V (2.7V to  
5.5V) and 1.8V (1.8V to 3.6V) versions.  
Preliminary  
Pin Configurations  
8-lead PDIP  
8-lead SOIC  
Pin Name  
A0–A2  
SDA  
Function  
1
2
3
4
8
7
6
5
8
7
6
5
A0  
A1  
VCC  
WP  
A0  
A1  
1
2
3
4
VCC  
WP  
Address Inputs  
Serial Data  
Serial Clock Input  
Write Protect  
No Connect  
Ground  
A2  
SCL  
SDA  
A2  
SCL  
SDA  
GND  
GND  
SCL  
WP  
8-lead dBGA2  
8
8-lead TSSOP  
NC  
VCC  
1
A0  
8
A0  
1
2
3
4
VCC  
WP  
SCL  
SDA  
7
6
5
2
3
4
A1  
GND  
7
6
5
A1  
A2  
WP  
A2  
SCL  
SDA  
GND  
GND  
8-lead MAP  
VCC  
WP  
8
7
6
5
1
2
3
4
A0  
A1  
A2  
SCL  
SDA  
GND  
Rev. 0670O–SEEPR–7/04  

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