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25AA080B PDF预览

25AA080B

更新时间: 2024-11-19 22:44:59
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
24页 505K
描述
8K SPI Bus Serial EEPROM

25AA080B 数据手册

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25AA080A/B, 25LC080A/B  
8K SPI Bus Serial EEPROM  
Device Selection Table  
Part Number  
VCC Range  
Page Size  
Temp. Ranges  
Packages  
25LC080A  
25AA080A  
25LC080B  
25AA080B  
2.5-5.5V  
1.8-5.5V  
2.5-5.5V  
1.8-5.5V  
16 Byte  
16 Byte  
32 Byte  
32 Byte  
I, E  
P, SN, ST, MS  
P, SN, ST, MS  
P, SN, ST, MS  
P, SN, ST, MS  
I
I, E  
I
Features  
Description  
• Max. clock 10 MHz  
The Microchip Technology Inc. 25AA080A/B,  
*
25LC080A/B (25XX080A/B ) are  
8
Kbit Serial  
• Low-power CMOS technology  
• 1024 x 8-bit organization  
• 16 byte page (‘A’ version devices)  
• 32 byte page (‘B’ version devices)  
• Write cycle time: 5 ms max.  
• Self-timed ERASE and WRITE cycles  
• Block write protection  
Electrically Erasable PROMs. The memory is accessed  
via a simple Serial Peripheral Interface™ (SPI™)  
compatible serial bus. The bus signals required are a  
clock input (SCK) plus separate data in (SI) and data  
out (SO) lines. Access to the device is controlled  
through a Chip Select (CS) input.  
Communication to the device can be paused via the  
hold pin (HOLD). While the device is paused, transi-  
tions on its inputs will be ignored, with the exception of  
chip select, allowing the host to service higher priority  
interrupts.  
- Protect none, 1/4, 1/2 or all of array  
• Built-in write protection  
- Power-on/off data protection circuitry  
- Write enable latch  
The 25XX080A/B is available in standard packages  
including 8-lead PDIP and SOIC, and advanced  
packaging including 8-lead MSOP, and 8-lead TSSOP.  
Pb-free (Pure Matte Sn) finish is also available.  
- Write-protect pin  
• Sequential read  
• High reliability  
- Endurance: 1,000,000 erase/write cycles  
- Data retention: > 200 years  
- ESD protection: > 4000V  
Temperature ranges supported;  
Package Types (not to scale)  
TSSOP/MSOP  
(ST, MS)  
PDIP/SOIC  
(P, SN)  
- Industrial (I):  
-40°C to +85°C  
-40°C to +125°C  
1
2
3
4
8
7
6
5
- Automotive (E):  
CS  
SO  
WP  
V
CC  
CS  
SO  
WP  
VCC  
1
2
3
4
8
7
6
5
HOLD  
SCK  
SI  
HOLD  
SCK  
SI  
VSS  
Pin Function Table  
VSS  
Name  
Function  
SPI is a registered trademark of Motorola Semiconductor.  
CS  
SO  
Chip Select Input  
Serial Data Output  
Write-Protect  
Ground  
WP  
VSS  
SI  
Serial Data Input  
Serial Clock Input  
Hold Input  
SCK  
HOLD  
VCC  
*25XX080A/B is used in this document as a generic part  
number for the 25AA080A/B, 25LC080A/B.  
Supply Voltage  
2003 Microchip Technology Inc.  
DS21808B-page 1  

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