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AT93C46_07

更新时间： 2024-01-12 09:57:19
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
18页 536K
描述
Three-wire Serial EEPROM

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AT93C46_07 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  
– 1K: 128 x 8 or 64 x 16  
• Three-wire Serial Interface  
• 2 MHz Clock Rate (5V)  
• Self-timed Write Cycle (10 ms max)  
• High Reliability  
– Endurance: 1 Million Write Cycles  
– Data Retention: 100 Years  
• Automotive Grade 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  
Description  
1K (128 x 8 or 64 x 16)  
The AT93C46 provides 1024 bits of serial electrically erasable programmable read-  
only memory (EEPROM), organized as 64 words of 16 bits each (when the ORG pin is  
connected to VCC), and 128 words of 8 bits each (when the ORG pin is tied to  
ground). The device is optimized for use in many industrial and commercial applica-  
tions where low-power and low-voltage operations are essential. The AT93C46 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-lead dBGA2 packages.  
AT93C46  
Note: Not recommended for new  
design; please refer to  
AT93C46D datasheet.  
The AT93C46 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 DO pin. 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 AT93C46 is available in 2.7V to 5.5V and 1.8V to 5.5V versions.  
Table 1. Pin Configurations  
8-lead SOIC  
8-lead dBGA2  
Pin Name  
CS  
Function  
8
7
6
5
1
2
3
4
VCC  
DC  
CS  
SK  
D1  
D0  
CS  
SK  
DI  
1
8
7
6
5
VCC  
DC  
Chip Select  
2
3
4
ORG  
GND  
ORG  
GND  
SK  
Serial Data Clock  
Serial Data Input  
Serial Data Output  
Ground  
DO  
Bottom View  
DI  
8-lead PDIP  
8-lead SOIC  
Rotated (R)  
(1K JEDEC Only)  
DO  
CS  
1
2
3
4
8
7
6
5
VCC  
GND  
VCC  
ORG  
DC  
SK  
DI  
DC  
DC  
VCC  
CS  
1
2
3
4
8
7
6
5
ORG  
GND  
DO  
ORG  
GND  
Power Supply  
Internal Organization  
Don’t Connect  
DO  
SK  
DI  
8-lead Ultra Thin mini-MAP (MLP 2x3)  
8-lead TSSOP  
8
7
6
5
1
2
3
4
VCC  
DC  
CS  
SK  
DI  
CS  
SK  
DI  
1
2
3
4
8
7
6
5
VCC  
DC  
ORG  
GND  
ORG  
GND  
DO  
DO  
Bottom View  
5140B–SEEPR–2/07  
1234567...18

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