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AT34C02C_08

更新时间： 2024-02-06 15:15:18
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
页数 文件大小 规格书
25页 660K
描述
Two-wire Serial EEPROM with Permanent and Reversible Software Write Protect 2K (256 x 8)

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中文翻译

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AT34C02C_08 数据手册

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Features  
• Permanent and Reversible Software Write Protection for the First-half of the Array  
– Software Procedure to Verify Write Protect Status  
• Hardware Write Protection for the Entire Array  
• Low-voltage and Standard-voltage Operation  
– 1.7 (VCC = 1.7V to 5.5V)  
• Internally Organized 256 x 8  
• Two-wire Serial Interface  
• Schmitt Trigger, Filtered Inputs for Noise Suppression  
• Bidirectional Data Transfer Protocol  
• 100 kHz (1.7V) and 400 kHz (2.7V and 5.0V) Compatibility  
• 16-byte Page Write Modes  
Two-wire Serial  
EEPROM  
• Partial Page Writes Are Allowed  
with Permanent  
and Reversible  
Software Write  
Protect  
• Self-timed Write Cycle (5 ms max)  
• High-reliability  
– Endurance: 1 Million Write Cycles  
– Data Retention: 100 Years  
• 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 8-lead TSSOP, and 8-ball  
dBGA2 Packages  
• Die Sales: Wafer Form, Tape and Reel, and Bumped Wafers  
2K (256 x 8)  
Description  
The AT34C02C provides 2048 bits of serial electrically-erasable and programmable  
read only memory (EEPROM) organized as 256 words of 8 bits each. The first-half of  
the device incorporates a permanent and a reversible software write protection fea-  
ture while hardware write protection for the entire array is available via an external pin.  
Once the permanent software write protection is enabled, by sending a special com-  
mand to the device, it cannot be reversed. However, the reversible software write  
protection is enabled and can be reversed by sending a special command. The hard-  
ware write protection is controlled with the WP pin and can be used to protect the  
entire array, whether or not the software write protection has been enabled. This  
allows the user to protect none, first-half, or all of the array depending on the applica-  
tion. The device is optimized for use in many industrial and commercial applications  
where low-power and low-voltage operations are essential. The AT34C02C is avail-  
able in space saving 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 8-lead  
TSSOP, and 8-ball dBGA2 packages and is accessed via a Two-wire serial interface.  
AT34C02C  
It is available in 1.7V (1.7V to 5.5V).  
8-lead Ultra Thin Mini-MAP  
8
7
6
5
1
2
3
4
A0  
A1  
VCC  
WP  
8-ball dBGA2  
SCL  
SDA  
A2  
GND  
8-lead TSSOP  
8
7
6
5
1
2
3
4
A0  
VCC  
WP  
A0  
A1  
1
2
3
4
8
7
6
5
VCC  
WP  
A1  
(MLP 2x3) Bottom View  
8-lead SOIC  
A2  
SCL  
SDA  
A2  
SCL  
SDA  
GND  
GND  
A0  
A1  
1
2
3
4
8
7
6
5
VCC  
WP  
Bottom View  
A2  
SCL  
SDA  
GND  
Rev. 5185D–SEEPR–1/08  
1234567...25

中文翻译

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