ISL33354E, ISL33357E
Electrical Specifications Test Conditions: V = 4.5V to 5.5V, C - C = 0.1µF, unless otherwise specified. Typicals are at V = 5V,
CC
1
4
CC
T
= +25°C (Note 10). (Continued) Boldface limits apply across the operating temperature range, -40°C to +85°C. (Continued)
A
TEMP
(°C) (Note 15)
MIN
MAX
(Note 15) UNIT
PARAMETER
SYMBOL
TEST CONDITIONS
C = 15pF (Figure 8)
TYP
50
40
10
2
Receiver Propagation Delay
t
t
Full
Full
Full
Full
-
120
120
40
-
ns
ns
RPHL
RPLH
L
-
-
Receiver Propagation Delay Skew
Receiver Maximum Data Rate
t
t
- t
RPHL RPLH
(Figure 8)
ns
RSKEW
DR
C = 15pF
0.46
Mbps
R
L
RS-485 DRIVER SWITCHING CHARACTERISTICS (FAST DATA RATE (20Mbps), PORT 2, (SLOW485 = V ))
CC
Driver Differential Input to Output
Delay
t
, t
DLH DHL
R
= 54Ω, C = 100pF (Figure 3)
Full
15
30
50
ns
DIFF
L
Driver Output Skew
t
R
R
= 54Ω, C = 100pF (Figure 3)
Full
Full
Full
Full
Full
Full
Full
-
3
-
3
10
20
ns
ns
ns
ns
ns
ns
ns
SKEW
DIFF
DIFF
L
Driver Differential Rise or Fall Time
Driver Enable to Output Low
Driver Enable to Output High
Driver Disable from Output Low
Driver Disable from Output High
t , t
= 54Ω, C = 100pF, (Figure 3)
11
27
24
31
24
65
R
F
L
t
C
C
C
C
= 100pF, SW = V (Figure 4)
CC
60
ZL
L
L
L
L
t
= 100pF, SW = GND (Figure 4)
-
60
ZH
t
= 15pF, SW = V (Figure 4)
CC
-
60
LZ
t
= 15pF, SW = GND (Figure 4)
-
60
HZ
Driver Enable from Shutdown to
Output Low
t
R
R
R
= 500Ω, C = 100pF, SW = V (Figure 4)
CC
-
250
ZL(SHDN)
L
L
Driver Enable from Shutdown to
Output High
t
= 500Ω, C = 100pF, SW = GND (Figure 4)
Full
Full
-
-
152
30
250
ns
ZH(SHDN)
L
L
Driver Maximum Data Rate
f
= 54Ω, C = 100pF (Figure 3)
-
Mbps
MAX
DIFF
L
RS-485 DRIVER SWITCHING CHARACTERISTICS (SLOW DATA RATE (115kbps), PORT 2, (SLOW485 = GND))
Driver Differential Input to Output
Delay
t
, t
DLH DHL
R
= 54Ω, C = 100pF (Figure 3)
Full
800
1500
2500
ns
DIFF
L
Driver Output Skew
t
R
R
= 54Ω, C = 100pF (Figure 3)
Full
Full
Full
Full
Full
Full
Full
-
350
2000
32
1250
3100
600
600
60
ns
ns
ns
ns
ns
ns
ns
SKEW
DIFF
DIFF
L
Driver Differential Rise or Fall Time
Driver Enable to Output Low
Driver Enable to Output High
Driver Disable from Output Low
Driver Disable from Output High
t , t
= 54Ω, C = 100pF (Figure 3)
1000
R
F
L
t
C
C
C
C
= 100pF, SW = V (Figure 4)
CC
-
-
-
-
-
ZL
L
L
L
L
t
= 100pF, SW = GND (Figure 4)
300
31
ZH
t
= 15pF, SW = V (Figure 4)
CC
LZ
t
= 15pF, SW = GND (Figure 4)
24
60
HZ
Driver Enable from Shutdown to
Output Low
t
R
R
R
= 500Ω, C = 100pF, SW = V (Figure 4)
CC
65
800
ZL(SHDN)
L
L
Driver Enable from Shutdown to
Output High
t
= 500Ω, C = 100pF, SW = GND (Figure 4)
Full
Full
-
-
420
800
800
ns
ZH(SHDN)
L
L
Driver Maximum Data Rate
f
= 54Ω, C = 100pF (Figure 3)
-
kbps
MAX
DIFF
L
RS-485 RECEIVER SWITCHING CHARACTERISTICS (PORT 2, ALL SPEEDS)
Receiver Input to Output Delay
Receiver Skew | t - t
t
, t
PLH PHL
(Figure 5)
(Figure 5)
Full
Full
Full
Full
Full
Full
Full
20
50
0.1
40
22
23
24
25
90
10
-
ns
ns
|
t
-
-
-
-
-
-
PLH PHL
SKEW
Receiver Maximum Data Rate
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable from Output Low
Receiver Disable from Output High
f
Mbps
ns
MAX
t
C
C
C
C
= 15pF, SW = V (Figure 6)
CC
60
60
60
60
ZL
L
L
L
L
t
= 15pF, SW = GND (Figure 6)
ns
ZH
t
= 15pF, SW = V (Figure 6)
CC
ns
LZ
t
= 15pF, SW = GND (Figure 6)
ns
HZ
FN8775.1
October 21, 2016
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