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AS1920 Datasheet(PDF) 9 Page - ams AG

Part # AS1920
Description  Triple-Voltage, Micro-Power Microprocessor Supervisory Circuits
PDF  14 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS1920 Datasheet(HTML) 9 Page - ams AG

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www.austriamicrosystems.com
Revision 1.00
9 - 14
AS1920/AS1922
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
Figure 13. Triple-Supply Monitor (3V, 1.8V, Adjustable)
Figure 14. Dual-Supply Monitor (3V and 1.8V; Disable VCCA Input)
Figure 15. Dual-Supply Monitor (3V and Adjustable)
AS1920-18
R2
R1
3V
1.8V
Adjustable Supply
or DC/DC Feed-
back Divider
System
Reset
To ensure threshold accuracy,
set the parallel combination of
R1 and R2
≤ 66.5kΩ
1
RESETN
3
VCCA
2
GND
4
VCC18
5
VCC3
AS1920-18
3V
1.8V
System
Reset
2
GND
1
RESETN
3
VCCA
4
VCC18
5
VCC3
AS1920-18
R2
R1
3V
Adjustable Supply
or DC/DC Feed-
back Divider
System
Reset
To ensure threshold accuracy,
set the parallel combination of
R1 and R2
≤ 66.5kΩ
1
RESETN
2
GND
4
VCC18
5
VCC3
3
VCCA



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