ISL3178AEMBZ-T Intersil, ISL3178AEMBZ-T Datasheet - Page 7

• Manufacturer Part Number: ISL3178AEMBZ-T
• Description: TXRX ESD 3.3V RS485/422 8-SOIC
• Manufacturer: Intersil
• Type: Transceiverr

Specifications of ISL3178AEMBZ-T

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Test Circuits and Waveforms
SIGNAL
GENERATOR
PARAMETER
SIGNAL
GENERATOR
t
t
ZH(SHDN)
ZL(SHDN)
t
t
t
t
HZ
ZH
LZ
ZL
SIGNAL
GENERATOR
V
CC
DE
DI
V
CC
FIGURE 2A. TEST CIRCUIT
FIGURE 3A. TEST CIRCUIT
FIGURE 4A. TEST CIRCUIT
DE
DI
OUTPUT
DE
DI
Y/Z
Y/Z
Y/Z
Y/Z
Y/Z
Y/Z
D
Z
Y
FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES
D
D
7
Y
Z
Y
0 (Note 5)
0 (Note 5)
1 (Note 8)
1 (Note 8)
Z
54Ω
RE
X
X
R
50pF
FIGURE 3. DRIVER ENABLE AND DISABLE TIMES
DIFF
(Continued)
500Ω
C
D
1/0
0/1
1/0
0/1
1/0
0/1
DI
SW
FIGURE 4. DRIVER DATA RATE
C
D
GND
GND
GND
V
V
V
SW
GND
V
CC
CC
CC
V
CC
+
OD
-
ISL3178AE
DIFF OUT (Y to Z)
OUT (Y, Z)
OUT (Y, Z)
t
t
ZH
ZL
OUT (Y)
OUT (Z)
DIFF OUT (Y to Z)
, t
, t
DE
NOTE 9
NOTE 9
DI
ZH(SHDN)
ZL(SHDN)
DI
NOTE 9
FIGURE 2B. MEASUREMENT POINTS
FIGURE 3B. MEASUREMENT POINTS
FIGURE 4B. MEASUREMENT POINTS
t
10%
R
90%
1.5V
t
PLH
1.5V
-V
OD
SKEW = |t
OUTPUT HIGH
50%
50%
OUTPUT LOW
PLH
- t
PHL
t
t
HZ
t
1.5V
LZ
PHL
1.5V
|
V
V
90%
OH
OL
10%
+V
+ 0.25V
- 0.25V
t
OD
F
3V
0V
3V
0V
May 6, 2009
3V
0V
FN6887.1
V
V
V
+V
0V
-V
V
0V
V
OH
CC
OL
OH
OL
OD
OD