AS1910R-T datasheet(2/15 Pages) AMSCO

2 / 15 page

www.austriamicrosystems.com

Revision 1.00

2 - 15

AS1910 - AS1915

Data Sheet - P i n o u t

4 Pinout

Pin Assignments

Figure 2. Pin Assignments (Top View)

Pin Descriptions

Table 2. Pin Descriptions

Number

Name

Description

RESETN

Active-Low Reset Output (AS1910, AS1912, AS1913, AS1915). The RESETN signal

toggles from high to low when VCC, VCC2, or RESETIN input drops below the factory-trimmed

reset threshold (see Table 4 on page 4), 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.

RESET

Active-High Reset Output (AS1911, AS1914). The RESET signal toggles from low to high

when VCC, VCC2, or RESETIN input drops below the factory-trimmed reset threshold (see

Table 4 on page 4), or MRN is pulled low, or the watchdog triggers a reset. This output signal

remains high for the reset timeout period (see tRP on page 5) after all supervised voltages

exceed their reset threshold, or MRN goes low to high, or the watchdog triggers a reset.

2GND

Ground

3MRN

Active-Low Manual Reset Input. Pulling this pin low asserts a reset. This pin is connected

to the internal 50k

Ω pullup to VCC. This reset remains active as long as MRN is low and for

the reset timeout period (see tRP on page 5) after MRN goes high.

Note: If the manual reset feature is not used, this pin should be unconnected or connected

to VCC.

4WDI

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

(see tWD on page 6), the internal watchdog timer period expires and a reset is triggered for

the reset timeout period (see tRP on page 5). 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.

RESETIN

User-Adjustable Supervised Voltage Input (AS1910/AS1911/AS1912). This high-

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).

VCC2

Primary Supervised Voltage Input (AS1913/AS1914/AS1915). This pin serves as the

secondary supervised voltage input.

6VCC

Primary Supervised Voltage Input. This pin serves as the primary supervised voltage input.

AS1910 -

AS1915

GND

MRN

RESETN/RESET

4 WDI

5 RESETIN/VCC2

6 VCC

AS1910R-T 数据表(PDF) 2 Page - ams AG

AS1910R-T 数据表(HTML) 2 Page - ams AG

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

数据表下载