H6060 EMMICRO [EM Microelectronic - MARIN SA], H6060 Datasheet

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H6060

Manufacturer Part Number
H6060
Description
Self Recovering Watchdog
Manufacturer
EMMICRO [EM Microelectronic - MARIN SA]
Datasheet

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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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H6060 Summary of contents

Page 1

... SL an advanced warning signal for register saving and if the voltage drops further below V (see table 4), RES and RL 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 © ...

Page 2

... 1 1 Input Resistance Threshold VIN SH SL ∼100MΩ 2.25 2.00 ∼100MΩ 2.00 1. and H6060 Symbol Min. Max. Units T -40 + 1.6 5 ∗ Min. Typ. Max. 3 3.5 − 0 140 ...

Page 3

... Stop Power-on Reset Timer Start 3 Min. Typ. 250 °C 60 100 A 45 150 T / Power-on Reset (as V > www.emmicroelectronic.com H6060 Max. Units 500 ns µs 10 100 ns 160 ms 200 µs Table 5 Fig. 3 Conditions: > timeout. Fig. 4 ...

Page 4

... RES Timer Timeout Recover Reset V IN Band-Gap Reference + Save SAVE Control + + Reset RES Control + RES OSC Timer TCL 4 Conditions power-up sequence TO Timer Reset Timer Stop Version Connections 11, 12 13, 14 15, 16 www.emmicroelectronic.com H6060 > V after RL Fig. 5 Fig and Fig. 7 ...

Page 5

... SL for external threshold voltage programming by a voltage divider on pin V , then the internal levels V DD Electrical Specifications H6060 voltage thresholds. Fixed IN on power- holds up for a certain time DD starts dropping on power-down. The versions 11 inputs (see Fig. 7 and Table The levels obtained are proportional to ...

Page 6

... RES to go inactive. A voltage drop below the V level overrides the timer and immediately forces RES , RES and SAVE active. Any further TCL pulse has no effect until the next power-up sequence is completed. 6 H6060 timeout, RES and RES will remain TO TO starting with the inactive state. The ...

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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