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CAT1163LI-30-G Fiches technique(PDF) 1 Page - ON Semiconductor

No de pièce CAT1163LI-30-G
Description  Supervisory Circuits with Supervisory Circuits with
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Site Internet  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

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© Semiconductor Components Industries, LLC, 2011
November, 2011 − Rev. 10
1
Publication Order Number:
CAT1163/D
CAT1163
Supervisory Circuits with
I2C Serial CMOS EEPROM,
Precision Reset Controller
and Watchdog Timer (16K)
Description
The CAT1163 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 protection and a watchdog timer are integrated
together in low power CMOS technology. Memory interface is via 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” the system. The
CAT1163 watchdog monitors the WDI input pin.
The power supply monitor and reset circuit protects memory and
system controllers during power up/down and against brownout
conditions. Five reset threshold voltages support 5 V, 3.3 V and 3 V
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 pushbutton manual reset capability.
The CAT1163 memory features a 16−byte page. In addition,
hardware data protection is provided by a write protect pin WP and by
a VCCsense circuit that prevents writes to memory whenever VCCfalls
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.
Features
Watchdog Timer Input (WDI)
400 kHz I2C Bus Compatible
2.7 V to 6.0 V Operation
Low Power CMOS Technology
16−Byte Page Write Buffer
Built−in Inadvertent Write Protection
VCC Lock Out
Write Protection Pin, WP
Active High or Low Reset
Precision Power Supply Voltage Monitor
5 V, 3.3 V and 3 V Systems
Five Threshold Voltage Options
1,000,000 Program/Erase Cycles
Manual Reset
100 Year Data Retention
8−Pin DIP or 8−Pin SOIC
Commercial and Industrial Temperature Ranges
These Devices are Pb−Free, Halogen Free/BFR Free
and are RoHS Compliant
ORDERING INFORMATION
http://onsemi.com
PDIP−8
CASE 646AA
SOIC−8
CASE 751BD
For Ordering Information details, see page 10.
1
2
3
4
8
7
6
5
WDI
RESET
WP
GND
VCC
RESET
SCL
SDA
CAT1163
PIN CONFIGURATION
PIN FUNCTIONS
Pin Name
Function
WDI
Watchdog Timer Input
RESET
Active Low Reset I/O
WP
Write Protect
GND
Ground
SDA
Serial Data/Address
SCL
Clock Input
RESET
Active High Reset I/O
VCC
Power Supply
PDIP 8 Lead
SOIC 8 Lead


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