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CAT813 Datasheet

(CAT705 - CAT813) uP Supervisory Circuits

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CAT813 pdf
CAT705, CAT706, CAT813
mP Supervisory Circuits
Description
The CAT705, CAT706, and CAT813 provide reset and monitoring
functions for the electronic systems. Each device monitors the system
voltage and maintains a reset output until that voltage reaches the
device’s specified trip value and then maintains the reset output active
condition until the device’s internal timer allows the system power
supply to stabilize.
The devices have a watchdog input which can be used to monitor a
system signal and causes WDO to go low if the signal fails to change
state prior to a timeout condition.
The supervisory circuits provide a MR input which initiates a reset if
pulled low. The CAT705 and CAT706 provide an active low RESET
output. The CAT813 provides an active high RESET output.
There is a secondary supply monitor (PFI) included for powerfail
warning.
Features
Reset Guaranteed Valid for 1.0 V VCC
6 mA Supply Current
200 ms Reset Pulse Width
Watchdog Timer Function 1.6 s Timeout
Accurate Brownout Detection Reset in 3.0, 3.6, and 5.0 Volt Systems
Secondary Low Supply Monitoring on PFI Input
Pin and Function Compatible with the
MAX705/MAX706/MAX813L Products
Operating Range from 40°C to +85°C
SOIC 8lead and MSOP 8lead Packages
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
Microprocessor and Microcontroller Based Systems
Instrument and Control Systems
Portable Equipment
http://onsemi.com
SOIC8
V SUFFIX
CASE 751BD
MSOP8
Z SUFFIX
CASE 846AD
PIN CONFIGURATIONS AND
MARKING DIAGRAMS
SOIC8 (V) (Top View)
1
MR
WDO
VCC
GND
RESET *
WDI
PFI PFO
L = Assembly Location Code
4 = Lead Finish NiPdAu
A = Product Revision: Fixed as “A”
CATxxxV = Specific Device Code
= (CAT705V = CAT705 SOIC)
= (CAT706V = CAT706 SOIC)
= (CAT813V = CAT813 SOIC)
I = Temperature Range (I = Industrial)
Y = Production Year (Last Digit)
M = Production Month (19, O, N, D)
ALND = Last Four Assembly Lot Number Digits
RESET *
WDO
MR
VCC
MSOP8 (Z) (Top View)
1
WDI
PFO
PFI
GND
ABRx
Y
M
Z
= Specific Device Code
= (ABRT = CAT705 MSOP)
= (ABRT = CAT706 MSOP)
= (ABRS = CAT813 MSOP)
= Production Year (Last Digit)
= Production Month (19, O, N, D)
= Product Revision
(* RESET for CAT813)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
© Semiconductor Components Industries, LLC, 2012
April, 2012 Rev. 7
1
Publication Order Number:
CAT705/D


  ON Semiconductor Electronic Components Datasheet  

CAT813 Datasheet

(CAT705 - CAT813) uP Supervisory Circuits

No Preview Available !

CAT813 pdf
Device
CAT705
CAT706
CAT813
MR
VCC
WDI
PFI
RESET
@ 4.65 V
x
CAT705, CAT706, CAT813
VCC
RMR = 60 kW
RESET
CONTROLLER
+
VRST
TIMER
W52AkTWCHDOG
TRANSITION
DETECTION
+
1.25 V
WATCHDOG
TIMER
Figure 1. Functional Block Diagram
RESET
@ 4.65 V
MR
x
x
x
WDI
x
x
x
RESET
(RESET for CAT813)
WDO
PFO
WDO
x
x
x
PFI
@ 1.25 V
@ 1.25 V
@ 1.25 V
http://onsemi.com
2


Part Number CAT813
Description (CAT705 - CAT813) uP Supervisory Circuits
Maker ON Semiconductor
Total Page 12 Pages
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