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CAT93C4611

更新时间： 2024-09-26 22:40:07
品牌 Logo 应用领域
CATALYST 监控控制器可编程只读存储器
页数 文件大小 规格书
10页 157K
描述
Supervisory Circuits with Microwire Serial CMOS E2PROM, Precision Reset Controller and Watchdog Timer

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CAT93C4611 数据手册

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Advanced Information  
CAT93CXXXX (1K-16K)  
2
Supervisory Circuits with Microwire Serial CMOS E PROM, Precision Reset Controller and Watchdog Timer  
FEATURES  
■ Active High or Low Reset Outputs  
—Precision Power Supply Voltage Monitoring  
—5V, 3.3V and 3V options  
■ Watchdog Timer  
■ Programmable Reset Threshold  
■ Built-in Inadvertent Write Protection  
■ Hardware and Software Write Protection  
■ Power-Up Inadvertant Write Protection  
■ 1,000,000 Program/Erase Cycles  
■ 100 Year Data Retention  
—VCC Lock Out  
■ High Speed Operation: 3MHz  
■ Low Power CMOS Technology  
■ x 16 or x 8 Selectable Serial Memory  
■ Self-Timed Write Cycle with Auto-Clear  
■ Sequential Read  
■ Commercial, Industrial, and Automotive  
Temperature Ranges  
■ 2.7-6.0 Volt Operation  
■ 16 Byte Page Mode  
■ Fast Nonvolatile Write Cycle: 3ms Max  
DESCRIPTION  
duringbrownoutandpowerup/downconditions. During  
system failure the watchdog timer feature protects the  
microcontroller with a reset signal. Catalyst's advanced  
CMOS technology substantially reduces device power  
requirements. The 93CXXXX isavailable in 8-pin DIP, 8-  
pin TSSOP or 8-pin SOIC packages. It is designed to  
endure 1,000,000 program/erase cycles and has a data  
retention of 100 years.  
The CAT93CXXXX is a single chip solution to three  
popular functions of EEPROM memory, precision reset  
controller and watchdog timer. The serial EEPROM  
memoryofthe93CXXXXcanbeconfiguredeitherby16-  
bits or by 8-bits. Each register can be written (or read)  
by using the DI (or DO pin).  
The reset function of the 93CXXXX protects the system  
PIN CONFIGURATION  
BLOCK DIAGRAM  
93CX63X  
93CX61X  
93CX62X  
V
GND  
CC  
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
CS  
SK  
DI  
V
CS  
V
CC  
CS  
SK  
DI  
V
CC  
RESET  
CC  
RESET(RESET) SK  
RESET(RESET)  
WDI  
ORG  
GND  
DI  
RESET  
GND  
DO  
DO  
GND  
DO  
ADDRESS  
DECODER  
ORG  
MEMORY ARRAY  
PIN FUNCTIONS  
Pin Name  
Function  
CS  
Chip Select  
Reset I/O  
DATA  
REGISTER  
RESET/RESET  
OUTPUT  
BUFFER  
DI  
SK  
DI  
Clock Input  
MODE DECODE  
LOGIC  
Serial Data Input  
CS  
DO  
Serial Data Output  
CLOCK  
GENERATOR  
DO  
VCC  
GND  
ORG  
+2.7 to 6.0V Power Supply  
Ground  
SK  
RESET Controller  
High  
Precision  
Memory Organization  
WATCHDOG  
Vcc Monitor  
Note: When the ORG pin is connected to VCC, the X16 organiza  
tion is selected. When it is connected to ground, the X8 pin  
is selected. If the ORG pin is left unconnected, then an  
internal pullup device will select the X16 organization.  
WDI RESET/RESET  
© 1998 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
9-85  
1234567...10

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