ISL83082EIUZ-T Intersil, ISL83082EIUZ-T Datasheet - Page 10

• Manufacturer Part Number: ISL83082EIUZ-T
• Description: TXRX ESD RS-485/422 5V 8-MSOP
• Manufacturer: Intersil
• Type: Transceiverr

Specifications of ISL83082EIUZ-T

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ISL83082EIUZ-TTR

Test Circuits and Waveforms
Application Information
RS-485 and RS-422 are differential (balanced) data
transmission standards for use in long haul or noisy
environments. RS-422 is a subset of RS-485, so RS-485
transceivers are also RS-422 compliant. RS-422 is a
point-to-multipoint (multidrop) standard, which allows only
SIGNAL
GENERATOR
SIGNAL
GENERATOR
t
t
ZH(SHDN)
ZL(SHDN)
PARAMETER
t
ISL83080E, ISL83082E, ISL83083E, ISL83084E, ISL83085E, ISL83086E, ISL83088E
t
ZH
ZL
V
CC
SIGNAL
GENERATOR
(Note 9)
(Note 9)
t
t
HZ
LZ
(Note 12)
(Note 12)
DE
DI
GND
FIGURE 4A. TEST CIRCUIT
FIGURE 5A. TEST CIRCUIT
FIGURE 6A. TEST CIRCUIT
0V
RE
D
FIGURE 6. RECEIVER ENABLE AND DISABLE TIMES (DOES NOT APPLY TO THE ISL83084E)
B
A
B
A
RE
Z
Y
R
DE
0
0
0
0
0
0
10
R
RO
60Ω
RO
FIGURE 5. RECEIVER PROPAGATION DELAY AND DATA RATE
+1.5V
+1.5V
+1.5V
-1.5V
-1.5V
-1.5V
A
15pF
(Continued)
15pF
C
1kΩ
D
FIGURE 4. DRIVER DATA RATE
SW
GND
GND
GND
V
V
V
SW
CC
CC
CC
V
GND
V
OD
+
CC
-
one driver and up to 10 (assuming one unit load devices)
receivers on each bus. RS-485 is a true multipoint standard,
which allows up to 32 one unit load devices (any
combination of drivers and receivers) on each bus. To allow
for multipoint operation, the RS-485 specification requires
that drivers must handle bus contention without sustaining
any damage.
t
t
ZH
NOTES 9, 12
ZL
NOTES 9, 12
DIFF OUT (Y - Z)
RO
A
RE
RO
RO
, t
, t
ZH(SHDN)
ZL(SHDN)
DI
NOTE 10
FIGURE 4B. MEASUREMENT POINTS
FIGURE 5B. MEASUREMENT POINTS
FIGURE 6B. MEASUREMENT POINTS
t
PLH
1.5V
-V
0V
OD
OUTPUT HIGH
1.5V
1.5V
1.5V
OUTPUT LOW
t
t
PHL
t
HZ
1.5V
LZ
0V
V
V
1.5V
OH
OL
+V
+ 0.5V
- 0.5V
+1.5V
-1.5V
OD
3V
0V
April 22, 2008
3V
0V
0V
V
FN6085.9
V
V
V
0V
0V
CC
OH
CC
OL