Dual Ultra-Low-Voltage SOT23 µP Supervisors

with Manual Reset and Watchdog Timer

6

_______________________________________________________________________________________

0

0.010

0.005

0.200

0.150

0.300

0.250

0.350

02

3

1

4567

Typical Operating Characteristics (continued)

2.74

2.78

2.76

2.82

2.80

2.84

2.86

2.90

2.88

2.92

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Pin Description

PIN NUMBER

MAX

6826

MAX

6827

MAX

6828

MAX

6829

MAX

6830

MAX

6831

PIN

NAME

FUNCTION

1

1

1

1

RESET

Active-Low Open-Drain or Push-Pull Reset Output. RESET changes from high

threshold, MR is pulled low, or the watchdog triggers a reset. RESET remains

low for the reset timeout period after all voltages exceed the device reset

threshold, MR goes low to high, or the watchdog triggers a reset.

1

1

RESET

Active-High Push-Pull Reset Output. RESET changes from low to high when

is pulled low, or the watchdog triggers a reset. RESET remains HIGH for the

reset timeout period after all voltages exceed the device reset threshold, MR

goes low to high, or the watchdog triggers a reset.

2

2

2

2

2

2

GND

Ground

3

3

3

3

3

3

MR

Manual Reset Input, Active-Low, Internal 50k

reset. Reset remains active as long as MR is low and for the reset timeout period

4

4

4

4

4

4

WDI

Watchdog Input. If WDI remains high or low for longer than the watchdog timeout

period, the internal watchdog timer runs out and a reset is triggered for the reset

timeout period. The internal watchdog timer clears whenever reset is asserted, the

manual reset is asserted, or WDI sees a rising or falling edge. If WDI is left

unconnected or is connected to a three-stated buffer output, the watchdog feature

is disabled.