AS8221 Ver la hoja de datos (PDF) - austriamicrosystems AG
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AS8221 Datasheet PDF : 42 Pages
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AS8221
Datasheet - Pin Assignments
4 Pin Assignments
Figure 2. Pin Assignments SSOP20 Package
INH2
1
INH1
2
EN
3
VIO
4
TxD
5
TxEN
6
RxD
7
BGE
8
STBN
9
Reserved
10
AS8221
20
n.u
19
VCC
18
BP
17
BM
16
GND
15
WAKE
14
VBAT
13
ERRN
12
RxEN
11
n.u
4.1 Pin Descriptions
Table 1. Pin Descriptions
Pin Name
Pin Number
INH2
1
INH1
2
EN
3
VIO
4
TxD
5
TxEN
6
RxD
7
BGE
8
STBN
9
Reserved
10
Not used
11
RxEN
12
ERRN
13
VBAT
14
WAKE
15
GND
16
BM
17
BP
18
VCC
19
Not used
20
Pin Type
Description
Analog I/O
Analog Output. Inhibit 2 output for switching external voltage regulator
Analog Output. Inhibit 1 output for switching external voltage regulator
Digital input with pull-down Digital Input. Enable input
Supply pad
Supply Voltage. I/O supply voltage
Digital input with pull-down Digital Input. Transmit data input
Digital input with pull-up Digital Input. Transmitter enable input
Digital output
Digital Output. Receive data output
Digital Input. Bus guardian enable input
Digital input with pull-down Digital Input. Standby input
Analog/digital input/output
with pull-down
To be connected to GND or to be unconnected
-
Digital output
Digital Output. Receive data enable output
Digital Output. Error diagnosis output and wake status output
Supply pad
Supply Voltage. Battery supply voltage
Analog I/O
Analog Input. Local wake-up input
Supply pad
Ground
Analog I/O
Analog Input/Output. Bus line Minus
Analog Input/Output. Bus line Plus
Supply pad
Supply voltage
-
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Revision 1.7
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