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CAT24C021JA-45TE13

CAT24C021JA-45TE13首页预览图
型号: CAT24C021JA-45TE13
PDF文件:
  • CAT24C021JA-45TE13 PDF文件
  • CAT24C021JA-45TE13 PDF在线浏览
功能描述: Supervisory Circuits with I2C Serial CMOS E2PROM, Precision Reset Controller and Watchdog Timer
PDF文件大小: 85.63 Kbytes
PDF页数: 共12页
制造商: CATALYST[Catalyst Semiconductor]
制造商LOGO: CATALYST[Catalyst Semiconductor] LOGO
制造商网址: http://www.catalyst-semiconductor.com
捡单宝CAT24C021JA-45TE13
PDF页面索引
100%
1
24C1601 BLOCK
CA T24C161/162(16K), CAT24C081/082(8K)
CA T24C041/042(4K), CA T24C021/022(2K)
Supervisory Circuits with I
2
C Serial CMOS E
2
PROM, Precision Reset Controller and Watchdog Timer
DESCRIPTION
The CAT24CXXX is a single chip solution to three
popular functions of EEPROM memory, precision reset
controller and watchdog timer. The 24C161/162(16K),
24C081/082(8K), 24C041/042(4K) and 24C021/022(2K)
feature a I
2
C Serial CMOS EEPROM. Catalyst's ad-
vanced CMOS technology substantially reduces device
power requirements. The 24CXXX features a 16-byte
page and is available in 8-pin DIP or 8-pin SOIC packages.
The reset function of the 24CXXX protects the system
during brown out and power up/down conditions. During
system failure the watchdog timer feature protects the
microcontroller with a reset signal. 24CXXX features
active low reset on pin 2 and active high reset on pin 7.
24CXX1 features watchdog timer on the SDA line.
24CXX2 does not feature the watchdog timer function.
Pin Name Function
SDA Serial Data/Address
RESET/RESET Reset I/O
SCL Clock Input
Vcc Power Supply
DC Do Not Connect
V
SS
Ground
WP Write Protect
PIN FUNCTIONS
PIN CONFIGURATION
24CXX1/XX2*
BLOCK DIAGRAM
*All products offered in P and J packages
Advanced
FEATURES
D
OUT
ACK
SENSE AMPS
SHIFT REGISTERS
CONTROL
LOGIC
WORD ADDRESS
BUFFERS
ST ART/ST OP
LOGIC
E
2
PROM
V
CC
EXTERNAL LOAD
COLUMN
DECODERS
XDEC
DATA IN STORAGE
HIGH V OL T A GE/
TIMING CONTROL
V
SS
WP
SDA
RESET Controller
High
Precision
Vcc Monitor
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
SCL
Only for
24C161
RESET/RESET
WATCHDOG
© 1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Watchdog Timer on SDA for 24CXX1
Programmable Reset Threshold
400 KHz I
2
C Bus Compatible
2.7 to 6 Volt Operation
Low Power CMOS Technology
16 - Byte Page Write Buffer
Built-in inadvertent write protection
V
CC
Lock Out
Active High or Low Reset Outputs
Precision Power Supply Voltage Monitoring
5V, 3.3V and 3V options
1,000,000 Program/Erase Cycles
100 Year Data Retention
8-Pin DIP or 8-Pin SOIC
Commercial, Industrial and Automotive
Temperature Ranges
Doc. No. 25079-00 1/98 M-1
DC
V
CC
RESET
SCL
SDA
RESET
WP
V
SS
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