XR34350 Datasheet, PDF (7/20 Pages) Exar Corporation – Internal Termination and Wide Output Swing

Pin Configuration, Top View
L1 1
L2 2
L3 3
L4 4
L6 5
L7 6
L8 7
L9 8
VCC 9
GND 10
30 R2
29 GND
28 R3
27 R4
26 GND
25 R6
24 R7
23 GND
22 R8
21 R9
XR34350
Pin Functions
Pin Number Pin Name
1
L1
2
L2
3
L3
4
L4
5
L6
6
L7
7
L8
8
L9
9
VCC
10
GND
11
SLEW
12
DIR1
13
N/C
14
MODE0
15
MODE1
16
N/C
17
TERM
18
N/C
19
EN
20
VCC
Descriptions by Mode (MODE1, MODE0)
Mode 00, Figure 2
Mode 01, Figure 3
Mode 10, Figure 4
Mode 11, Figure 5
R1 output
1
1
R2 output
R1 output
R1 output
T1 input
T1 input
T1 input
T2 input
R3 output
1
1
T3 input
R4 output
1
1
R5 output
1
1
V_CC
Ground
SLEW = V_CC enables 250kbps slew limiting
T1 enable, R1 disable
T1 enable
This pin is not used and is not connected internally
0
1
0
1
0
0
1
1
This pin is not used and is not connected internally
Enables RS-485/RS-422 receiver termination
This pin is not used and is not connected internally
Enable = V_CC for operation, Enable = 0V for shutdown
V_CC
REV1B
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