Data Sheet

AC4790
Datasheet
https://www.lairdconnect.com/
8
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3 ELECTRICAL SPECIFICATIONS
Table 2: Input Voltage Characteristics
Signal Name
AC47901x1 / AC4790-1000M
AC4790-200X
Unit
High Min.
High
Max.
Low
Min.
Low
Max.
High
Min.
High
Max.
Low
Min.
Low
Max.
RS485A/B
N/A
12
-7
N/A
N/A
12
-7
N/A
V
RXD
2.31
3.3
0
0.99
2
5.5
0
0.8
V
GI0
2.31
3.3
0
0.99
2
5.5
0
0.8
V
RTS
2.31
3.3
0
0.99
2
5.5
0
0.8
V
Test
2.31
3.3
0
0.99
2
5.5
0
0.8
V
GI1
2.31
3.3
0
0.99
2
5.5
0
0.8
V
UP_RESET
0.8
3.3
0
0.6
0.8
5
0
0.8
V
Command/Data
2.31
3.3
0
0.99
2
5.5
0
0.8
V
AD In
N/A
3.3
0
N/A
N/A
3.3
0
N/A
V
Table 3: Output Voltage Characteristics
Signal Name
Module Pin
1x1 Pin
Type
High Min.
Low Max.
Unit
Go0
1
19
O
2.5 @ 8 mA
0.4 @ 8 mA
V
TXD
2
6
O
2.5 @ 2 mA
0.4 @ 2 mA
V
RS485A/B
2, 3
N/A
I/O
3.3 @ 1/8 Unit Load
N/A
V
CTS
7
9
O
2.5 @ 2 mA
0.4 @ 2 mA
V
GO1
9
19
O
2.5 @ 2 mA
0.4 @ 2 mA
V
RSSI
13
12
O
See RSSI
See RSSI
V
Session Status
20
18
O
2.5 @ 2 mA
0.4 @ 2 mA
V
GO0
1
19
O
2.5 @ 8 mA
0.4 @ 8 mA
V