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25LC320AT-I/ST PDF预览

25LC320AT-I/ST

更新时间: 2024-11-05 04:25:39
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
26页 407K
描述
32K SPI Bus Serial EEPROM

25LC320AT-I/ST 数据手册

 浏览型号25LC320AT-I/ST的Datasheet PDF文件第2页浏览型号25LC320AT-I/ST的Datasheet PDF文件第3页浏览型号25LC320AT-I/ST的Datasheet PDF文件第4页浏览型号25LC320AT-I/ST的Datasheet PDF文件第5页浏览型号25LC320AT-I/ST的Datasheet PDF文件第6页浏览型号25LC320AT-I/ST的Datasheet PDF文件第7页 
25AA320A/25LC320A  
32K SPI Bus Serial EEPROM  
Device Selection Table  
Part Number  
VCC Range  
Page Size  
Temp. Ranges  
Packages  
25LC320A  
25AA320A  
2.5-5.5V  
1.8-5.5V  
32 Byte  
32 Byte  
I,E  
I
P, SN, ST, MS  
P, SN, ST, MS  
Features:  
Description:  
• Max. clock 10 MHz  
The Microchip Technology Inc. 25AA320A/25LC320A  
(25XX320A*) are 32k-bit Serial 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 sep-  
arate data in (SI) and data out (SO) lines. Access to the  
device is controlled through a Chip Select (CS) input.  
• Low-power CMOS technology  
- Max. Write Current: 5 mA at 5.5V, 10 MHz  
- Read Current: 5 mA at 5.5V, 10 MHz  
- Standby Current: 5 μA at 5.5V  
• 4096 x 8-bit organization  
• 32 byte page  
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.  
• Self-timed erase and write cycles (5 ms max.)  
• Block write protection  
- Protect none, 1/4, 1/2 or all of array  
• Built-in write protection  
The 25XX320A is available in standard packages  
including 8-lead PDIP and SOIC, and advanced  
packaging including 8-lead MSOP, and 8-lead TSSOP.  
All packages are Pb-free.  
- Power-on/off data protection circuitry  
- Write enable latch  
- Write-protect pin  
• Sequential read  
• High reliability  
Package Types (not to scale)  
- Endurance: >1M erase/write cycles  
- Data retention: > 200 years  
- ESD protection: > 4000V  
Temperature ranges supported;  
TSSOP/MSOP  
(ST, MS)  
PDIP/SOIC  
(P, SN)  
1
2
3
4
8
7
6
5
CS  
SO  
WP  
V
CC  
CS  
SO  
WP  
1
2
3
4
8
7
6
5
VCC  
HOLD  
SCK  
SI  
HOLD  
SCK  
SI  
- Industrial (I):  
- Automotive (E):  
-40°C to +85°C  
-40°C to +125°C  
VSS  
VSS  
• Standard and Pb-free packages available  
Pin Function Table  
Name  
Function  
Chip Select Input  
CS  
SO  
Serial Data Output  
Write-Protect  
Ground  
WP  
VSS  
SI  
Serial Data Input  
Serial Clock Input  
Hold Input  
SCK  
HOLD  
VCC  
Supply Voltage  
*25XX320A is used in this document as a generic part number  
for the 25AA320A, 25LC320A devices.  
© 2007 Microchip Technology Inc.  
DS21828D-page 1  

25LC320AT-I/ST 替代型号

型号 品牌 替代类型 描述 数据表
25LC320A-I/ST MICROCHIP

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