AS1901C31(2005) 查看數據表（PDF） - austriamicrosystems AG

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AS1901C31
(Rev.:2005)

Ultra Low-Power µP Supervisory Circuit

austriamicrosystems AG 

AS1901, AS1902, AS1903

Data Sheet

8 Pinout and Packaging

8.1 Pin Assignments

Figure 2. Pin Assignments (Top View)

Top View

GND 1

AS1901

AS1902

AS1903

3 VDD

RESETN,

2

RESET

SOT23-3

austriamicrosystems

Pin Assignments

8.2 Pin Descriptions

Table 6. Pin Descriptions

Pin Number

AS1901/AS1903

AS1902

1

1

2

-

-

2

3

3

Pin Name

GND

RESETN

RESET

VDD

Description

Ground

Active-low reset output. RESETN remains low while VDD is

below the reset threshold and for tTP after VDD rises above

the reset threshold. RESETN is open-drain on the AS1903

and push-pull on the AS1901.

Active-high reset output. RESET remains high while VDD is

below the reset threshold and for tTP after VDD rises above

the reset threshold.

Supply voltage.

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Revision 1.5

6-9

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