AS1910 - AS1915
Data Sheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
RESETN/RESET 1
6 V
CC
GND 2
AS1910 -
AS1915
5 RESETIN/V
CC2
MRN 3
4 WDI
Pin Descriptions
Table 2. Pin Descriptions
Pin
Number
Pin
Name
Description
1
Active-Low Reset Output
(AS1910, AS1912, AS1913, AS1915). The RESETN signal
toggles from high to low when V
CC
, V
CC2
, or RESETIN input drops below the factory-trimmed
RESETN reset threshold
or MRN is pulled low, or the watchdog triggers a
reset. This output signal remains low for the reset timeout period after all supervised voltages
exceed their reset threshold, or MRN goes low to high, or the watchdog triggers a reset.
Active-High Reset Output
(AS1911, AS1914). The RESET signal toggles from low to high
when V
CC
, V
CC2
, or RESETIN input drops below the factory-trimmed reset threshold
or MRN is pulled low, or the watchdog triggers a reset. This output signal
remains high for the reset timeout period (see t
RP
on
after all supervised voltages
exceed their reset threshold, or MRN goes low to high, or the watchdog triggers a reset.
Ground
Active-Low Manual Reset Input.
Pulling this pin low asserts a reset. This pin is connected
to the internal 50kΩ pullup to V
CC
. This reset remains active as long as MRN is low and for
the reset timeout period (see t
RP
on
after MRN goes high.
Note:
If the manual reset feature is not used, this pin should be unconnected or connected
to V
CC
.
Watchdog Input.
If WDI remains high or low for longer than the watchdog timeout period
(see t
WD
on
the internal watchdog timer period expires and a reset is triggered for
the reset timeout period (see t
RP
on
The internal watchdog timer clears whenever a
reset is a asserted or when WDI senses a rising or falling edge.
Note:
To disable the watchdog feature, this pin must be unconnected or connected to a tri-
state buffer output.
RESET
2
GND
3
MRN
4
WDI
5
User-Adjustable Supervised Voltage Input
(AS1910/AS1911/AS1912). This high-
RESETIN impedance pin serves as the input to the internal reset comparator. Connect this pin to an
external resistor-divider network to set the reset threshold voltage (down to 0.63V).
V
CC2
Primary Supervised Voltage Input
(AS1913/AS1914/AS1915). This pin serves as the
secondary supervised voltage input.
Primary Supervised Voltage Input.
This pin serves as the primary supervised voltage input.
6
V
CC
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