h6060v16so8b EM Microelectronic, h6060v16so8b Datasheet

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h6060v16so8b

Manufacturer Part Number
h6060v16so8b
Description
Self Recovering Watchdog
Manufacturer
EM Microelectronic
Datasheet
Description
The H6060 is a monolithic low-power CMOS device
combining a programmable timer and a series of voltage
comparators on the same chip. The device is specially
suited for watchdog functions such as microprocessor and
supply voltage monitoring. If the µP system malfunctions,
the watchdog will recover it by issuing repeated active
reset signals. The voltage monitoring part provides double
security by combining both the unregulated voltage (V
and
simultaneously. The H6060 initializes the power-on reset
after V
3.V. If V
an advanced warning signal for register saving and if the
voltage drops further below V
voltage down to 1.6 V and is therefore particularly suited
for start-up and shut-down control of microprocessor
systems.
Typical Operating Configuration
Copyright © 2004, EM Microelectronic-Marin SA
RES go active. The H6060 functions at any supply
IN
the
IN
reaches V
drops below V
R
regulated
EM MICROELECTRONIC -
SH
(see table 4) and V
SL
(see table 4), the H6060 gives
voltage
RL
Self Recovering Watchdog
(see table 4), RES and
(V
DD
)
DD
rises above
monitoring
Fig. 1
IN
)
Features
Applications
Pin Assignment
1
MARIN SA
Self recovering watchdog function: reset goes active
after the 1st timeout period, reset goes inactive again
after the 2nd timeout period, repeated active reset
signal until the system recovers
Standard timeout period and power-on reset time (100
ms), externally programmable if required
Unregulated DC monitoring (V
programmable trigger voltages for: power-on reset
initialization, advanced power-fail warning ( SAVE ),
reset at power-down ( RES )
Regulated DC monitoring (V
initialization enabled only if V
Internal voltage reference
Works down to 1.6 V supply voltage
Push-pull or Open drain outputs
Low current consumption
SO8 package
Microprocessor and microcontroller systems
Point of sales equipment
Telecom products
Automotive subsystems
DD
www.emmicroelectronic.com
IN
≥ 3.5 V
DD
) with 3 standard or
): power-on reset
H6060
Fig. 2

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h6060v16so8b Summary of contents

Page 1

... RES go active. The H6060 functions at any supply voltage down to 1.6 V and is therefore particularly suited for start-up and shut-down control of microprocessor systems. Typical Operating Configuration Copyright © 2004, EM Microelectronic-Marin SA MARIN SA Features Self recovering watchdog function: reset goes active after the 1st timeout period, reset goes inactive again ...

Page 2

... Version open drain outputs; 14 push-pull outputs Threshold ratio tolerance is defined as the tolerance of V Copyright © 2004, EM Microelectronic-Marin SA all terminal voltages are kept within the voltage range. Unused inputs must always be tied to a defined logic Conditions voltage level. − 0 − 0.3 Operating Conditions + 0 ...

Page 3

... Voltage Reaction: V Monitoring SAVE RES RES Timer Start Power-on Reset Copyright © 2004, EM Microelectronic-Marin SA Symbol Test Conditions T DIDO T Excluding debounce time T AIDO T Load 10 kΩ, 100 open, unshielded open, unshielded (not tested ...

Page 4

... SAVE RES RES TCL Initialisation Block Diagram Copyright © 2004, EM Microelectronic-Marin SA T TCL Timer Timeout Reset RES RES Timer Timeout Recover Reset V IN Band-Gap Reference + Save SAVE ...

Page 5

... Short circuits on the regulated ON supply voltage can be detected. Voltage Thresholds The H6060 is available with 3 different sets of thresholds: Copyright © 2004, EM Microelectronic-Marin SA Version 14: monitor the unregulated voltage and are ideal for programming of the V resistor values can be used for programming. Table 6 and V pins below Version 15, 16: monitor the regulated voltage ...

Page 6

... RL DD OFF Typical Applications Microprocessor Watchdog with Power-On Reset and Voltage Monitor Copyright © 2004, EM Microelectronic-Marin SA Timer Clearing and RES /RES Action A negative edge or a negative pulse at the TCL input for of TO longer than 150 ns will reset the timer and set RES and ...

Page 7

... R Voltage Monitor with Spike Suppression Voltage +12 VDC Regulator rough Watchdog and Power-On Reset External Programming of RC Oscillator Copyright © 2004, EM Microelectronic-Marin SA 2.7 kΩ 330 nF Z- TCL 7 H6060 1) R/F shields for noisy environments. 5 VDC SAVE RES www.emmicroelectronic.com Fig. 11 ...

Page 8

... H6060V14SO8B H6060V16SO8A V16 1.95 H6060V16SO8B Note: Other versions are no longer available EM Microelectronic-Marin SA cannot assume responsibility for use of any circuitry described other than circuitry entirely embodied Microelectronic-Marin SA product. EM Microelectronic-Marin SA reserves the right to change the circuitry and specifications without notice at any time. You are strongly urged to ensure that the information given has not been superseded by a more up-to-date version. ...

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