SP339E EXAR [Exar Corporation], SP339E Datasheet - Page 4

• Manufacturer Part Number: SP339E
• Description: RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
• Manufacturer: EXAR [Exar Corporation]

SP339E
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
PIN DESCRIPTIONS BY MODE (MODE1, MODE0)
Pin
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Name
GND
GND
GND
GND
VCC
VSS
VCC
VDD
C1+
C2+
C2-
C1-
R9
R8
R7
R6
R4
R3
R2
R1
00,
Figure 1
V
SS
V
DD
- Charge pump negative supply, 0.1µF from ground
C
C
- Charge pump positive supply, 0.1µF to ground
1+
2+
C
C
- Charge pump cap 1 positive lead, 0.1µF
- Charge pump cap 2 positive lead, 0.1µF
2+
1-
01,
T3 Output
T2 Output
T1 Output
R5 Input
R4 Input
R3 Input
R2 Input
R1 Input
- Charge pump cap 1 negative lead
- Charge pump cap 2 negative lead
4
Figure 2
Ground
Ground
Ground
Ground
V
V
CC
CC
R1 Input A, T1 Out A
R1 Input B, T1 Out B
10,
Figure 3
11,
R1 Input B
R2 Input A
T1 Out A
T1 Out B
Figure 4
REV. 1.0.0