6006B1 View Datasheet(PDF) - EM Microelectronic - MARIN SA
Part Name
Description
Manufacturer
6006B1 Datasheet PDF : 8 Pages
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EM MICROELECTRONIC - MARIN SA
H6006
Failsafe Watchdog
Description
The H6006 is a monolithic low power CMOS device
combining a programmable digital timer and a series of
voltage comparators on the same chip. The device is
specially convenient for Watch-Dog functions such as
microprocessor and supply voltage monitoring. The
watchdog part is designed to be used in all applications
where it is important that after the occurrence of a
malfunction the microprocessor system is stopped to avoid
further damage. The timeout warning signal ( TO ) can be
used to try to reactivate the system before halting it. The
voltage monitoring part provides double security by
combining both unregulated voltage and regulated voltage
monitoring simultaneously. The H6006 initializes the power-
on reset after VIN reached VSH and VDD raises above 3.5 V. If
VIN drops below VSL, the H6006 gives an advanced warning
signal for register saving and if the voltage drops further
below VRL, RES goes active. The H6006 functions at any
supply voltage down to 1.5 V and is therefore particularly
suited for start-up and shut-down control of microprocessor
systems
Typical Operating Configuration
Features
Failsafe watchdog function: timeout warning after 1st
timeout period, reset after 2nd timeout period, reset
remains active to avoid further failures
Standard timeout period and power-on reset time
(10 ms), externally programmable if required
VIN monitoring with 3 standard or programmable trigger
voltages for: power-on reset initialization, advanced
power-fail warning ( SAVE ), reset at power-down ( RES )
VDD monitoring: power-on reset initialization enabled
only if VDD ≥ 3.5 V
Internal voltage reference
Works down to 1.5 V supply voltage
Push-pull or Open drain outputs
Low current consumption
Available for normal and extended temperature range
SO8 package
Applications
Microprocessor and microcontroller systems
Point of sales equipment
Telecom products
Automotive subsystems
Pin Assignment
Voltage
Regulator
VIN
TCL
VSS
5V
VDD
TO
SAVE
RES
INT
NMI
RES
Micro-
processor
I/O
GND
Fig. 1
SO8
VIN
TCL
RC
VSS
H6006
VDD
TO
SAVE
RES
Fig. 2
Copyright © 2004, EM Microelectronic-Marin SA
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www.emmicroelectronic.com
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