Microprocessor Supervisory

Circuit in 4-Lead SC70

Data Sheet

ADM6711/ADM6713

Rev. B

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FEATURES

Specified over temperature

Low power consumption (12 μA)

Precision monitoring of 2.5 V, 3 V, 3.3 V,

and 5 V power supply voltages

Reset timeout period of 140 ms (minimum)

Manual reset input

Output stages

Push-pull RESET output (ADM6711)

Open-drain RESET output (ADM6713)

Power supply glitch immunity

4-lead SC70 package

APPLICATIONS

Microprocessor systems

Computers

Controllers

Intelligent instruments

Automotive systems

FUNCTIONAL BLOCK DIAGRAMS

ADM6711

GND

RESET

RESET

GENERATOR

240ms

DEBOUNCE

MR

Figure 1.

ADM6713

GND

RESET

DEBOUNCE

MR

RESET

GENERATOR

240ms

Figure 2.

GENERAL DESCRIPTION

The ADM6711/ADM6713 are reset generator circuits suitable

for use in microprocessor-based systems. They provide a reset

signal on power-up, power-down, and whenever the supply

voltage falls below a preset threshold. In addition, both parts

have a debounced manual reset input so that a reset signal can

also be initiated with an external switch or logic signal.

With six different reset threshold options available ranging from

2.32 V to 4.63 V, the ADM6711/ADM6713 are suitable for

monitoring 2.5 V, 3 V, 3.3 V, and 5 V supplies. A reset timeout

This gives the supply voltage time to stabilize before the

microprocessor starts up.

The ADM6711 has a push-pull output, so no additional external

components are needed. The ADM6713 open-drain output

requires an external pull-up resistor that can be connected to

The parts are highly reliable with accurate voltage references

current consumption and space-efficient, 4-lead SC70 packaging

make the ADM6711/ADM6713 ideal for use in low power

portable applications.

RESET

RESET

MR

GND

GND

ADM6711/

ADM6713

*ADM6713 ONLY

MICROPROCESSOR

SYSTEM

Figure 3. Typical Operating Circuit