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CAT1161PI-30TE13

更新时间： 2024-11-28 22:54:15
品牌 Logo 应用领域
CATALYST 监控控制器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
12页 72K
描述
Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog Timer

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CAT1161PI-30TE13 数据手册

 浏览型号CAT1161PI-30TE13的Datasheet PDF文件第2页浏览型号CAT1161PI-30TE13的Datasheet PDF文件第3页浏览型号CAT1161PI-30TE13的Datasheet PDF文件第4页浏览型号CAT1161PI-30TE13的Datasheet PDF文件第5页浏览型号CAT1161PI-30TE13的Datasheet PDF文件第6页浏览型号CAT1161PI-30TE13的Datasheet PDF文件第7页 
CAT1161/2 (16K)  
Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog Timer  
FEATURES  
■ Active high or low reset  
■ Watchdog monitors SDA signal (CAT1161)  
■ 400kHz I2C bus compatible  
■ 2.7V to 6.0V operation  
— Precision power supply voltage monitor  
— 5V, 3.3V and 3V systems  
— Five threshold voltage options  
■ 1,000,000 Program/Erase cycles  
■ Manual Reset  
■ Low power CMOS technology  
■ 16-Byte page write buffer  
■ Built-in inadvertent write protection  
— VCC lock out  
■ 100 Year data retention  
■ 8-pin DIP or 8-pin SOIC  
— Write protect pin, WP  
■ Commercial and industrial temperature ranges  
DESCRIPTION  
voltages support 5V, 3.3V and 3V systems. If power supply  
voltages are out of tolerance reset signals become active,  
preventing the system microcontroller, ASIC or peripherals  
from operating. Reset signals become inactive typically 200  
ms after the supply voltage exceeds the reset threshold  
level. With both active high and low reset signals, interface  
to microcontrollers and other ICs is simple. In addition, a  
reset pin can be used as a debounced input for push-button  
manual reset capability.  
The CAT1161/2 is a complete memory and supervisory  
solution for microcontroller-based systems. A serial  
EEPROM memory (16K) with hardware memory write  
protection, a system power supervisor with brown out  
protectionandawatchdogtimerareintegratedtogether  
inlowpowerCMOStechnology. Memoryinterfaceisvia  
an I2C bus.  
The 1.6-second watchdog circuit returns a system to a  
known good state if a software or hardware glitch halts  
or“hangs”thesystem.TheCAT1161watchdogmonitors  
the SDA line, making an additional PC board trace  
unnecessary. The lower cost CAT1162 does not have a  
watchdog timer.  
TheCAT1161/2memoryfeaturesa16-bytepage.Inaddition,  
hardware data protection is provided by a write protect pin  
WP and by a VCC sense circuit that prevents writes to  
memory whenever VCC falls below the reset threshold or  
until VCC reaches the reset threshold during power up.  
Available packages include an 8-pin DIP and a surface  
mount, 8-pin SO package.  
The power supply monitor and reset circuit protects  
memory and system controllers during power up/down  
and against brownout conditions. Five reset threshold  
BLOCK DIAGRAM  
PIN CONFIGURATION  
EXTERNAL LOAD  
SENSE AMPS  
SHIFT REGISTERS  
D
OUT  
ACK  
V
DC  
CC  
V
CC  
WORD ADDRESS  
BUFFERS  
COLUMN  
DECODERS  
RESET  
GND  
RESET  
CAT1161/2  
SCL  
WP  
GND  
START/STOP  
LOGIC  
SDA  
SDA  
16K  
EEPROM  
XDEC  
CONTROL  
LOGIC  
DC = Do not connect  
WP  
Part Dash Minimum Maximum  
Number Threshold Threshold  
DATA IN STORAGE  
-45  
-42  
4.50  
4.25  
4.75  
4.50  
HIGH VOLTAGE/  
TIMING CONTROL  
RESET Controller  
STATE COUNTERS  
SCL  
-30  
-28  
-25  
3.00  
2.85  
2.55  
3.15  
3.00  
2.70  
Precision  
SLAVE  
ADDRESS  
COMPARATORS  
WATCHDOG  
Only for  
CAT1161  
Vcc Monitor  
RESET RESET  
© 2002 by Catalyst Semiconductor, Inc.  
Doc No. 3002, Rev. D  
Characteristics subject to change without notice  
1234567...12

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