SN65HVD20_07 Datasheet, PDF (13/28 Pages) Texas Instruments – EXTENDED COMMON-MODE RS-485 TRANSCEIVERS

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PIN ASSIGNMENTS
LOGIC DIAGRAM
SN65HVD20, SN65HVD21
SN65HVD22, SN65HVD23, SN65HVD24
SLLS552D − DECEMBER 2002 − REVISED APRIL 2005
D or P PACKAGE
(TOP VIEW)
R
1
RE
2
DE
3
D
4
8
V_CC
7
B
6
A
5 GND
POSITIVE LOGIC
R1
RE ²
DE ³
D4
6A
7
B
TYPICAL CHARACTERISTICS
HVD20, HVD23
BUS PIN CURRENT
vs
BUS PIN VOLTAGE
600
DE = 0 V
400
200
0
−200
VCC = 0 V
VCC = 5 V
−400
−600
−30 −20 −10
0
10
20
30
Bus Pin Voltage − V
Figure 17
HVD21, HVD22, HVD24
BUS PIN CURRENT
vs
BUS PIN VOLTAGE
150
DE = 0 V
100
50
VCC = 0 V
0
VCC = 5 V
−50
−100
−150
−30 −20 −10
0
10
20
30
Bus Pin Voltage − V
Figure 18
13