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AT93C66AU3-10UU-1.8(

更新时间： 2024-11-24 02:52:51
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
页数 文件大小 规格书
20页 479K
描述
Three-wire Serial EEPROM

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AT93C66AU3-10UU-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 5.5V)  
• User-selectable Internal Organization  
– 2K: 256 x 8 or 128 x 16  
– 4K: 512 x 8 or 256 x 16  
• Three-wire Serial Interface  
• Sequential Read Operation  
• 2 MHz Clock Rate (5V)  
• Self-timed Write Cycle (10 ms Max)  
• High Reliability  
– Endurance: 1 Million Write Cycles  
– Data Retention: 100 Years  
• Automotive Devices Available  
• 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead EIAJ SOIC, 8-lead Ultra Thin mini-MAP  
(MLP 2x3), 8-lead TSSOP and 8-ball dBGA2 Packages  
Three-wire  
Serial  
EEPROM  
2K (256 x 8 or 128 x 16)  
Description  
4K (512 x 8 or 256 x 16)  
The AT93C56A/66A provides 2048/4096 bits of serial electrically erasable program-  
mable read-only memory (EEPROM) organized as 128/256 words of 16 bits each  
(when the ORG pin is connected to VCC) and 256/512 words of 8 bits each (when the  
ORG pin is tied to ground). The device is optimized for use in many industrial and  
commercial applications where low-power and low-voltage operations are essential.  
The AT93C56A/66A is available in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-  
lead EIAJ SOIC, 8-lead Ultra Thin mini-MAP (MLP 2x3), 8-lead TSSOP, and 8-ball dBGA2  
packages.  
AT93C56A  
AT93C66A  
The AT93C56A/66A is enabled through the Chip Select pin (CS) and accessed via a  
three-wire serial interface consisting of Data Input (DI), Data Output (DO), and Shift  
Clock (SK). Upon receiving a read instruction at DI, the address is decoded and the  
data is clocked out serially on the data output pin DO. The write cycle is completely  
self-timed and no separate erase cycle is required before write. The write cycle is only  
enabled when the part is in the Erase/Write Enable State. When CS is brought “high”  
following the initiation of a write cycle, the DO pin outputs the Ready/Busy status of  
the part.  
The AT93C56A/66A is available in 2.7V to 5.5V and 1.8V to 5.5V versions.  
Table 1. Pin Configurations  
8-lead SOIC  
8-ball dBGA2  
Pin Name  
CS  
Function  
8
7
6
5
1
2
3
4
CS  
SK  
DI  
1
2
3
4
8
7
6
5
VCC  
NC  
VCC  
NC  
CS  
SK  
DI  
Chip Select  
ORG  
GND  
ORG  
GND  
SK  
Serial Data Clock  
Serial Data Input  
Serial Data Output  
Ground  
DO  
DO  
Bottom view  
8-lead Ultra Thin mini-MAP (MLP 2x3)  
DI  
8-lead PDIP  
DO  
VCC  
NC  
8
7
6
5
1 CS CS  
1
8
7
6
5
VCC  
NC  
2 SK  
3 DI  
SK  
2
3
4
GND  
VCC  
ORG  
NC  
ORG  
GND  
DI  
ORG  
GND  
4 DO DO  
Power Supply  
Internal Organization  
No Connect  
Bottom view  
8-lead TSSOP  
CS  
SK  
DI  
1
2
3
4
8
VCC  
NC  
7
6
5
ORG  
GND  
3378K–SEEPR–12/06  
DO  
1234567...20

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