ISL4238E Intersil Corporation, ISL4238E Datasheet - Page 7

• Manufacturer Part Number: ISL4238E
• Description: QFN Packaged, 15kV Esd Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps/ 1Mbps, RS-232 Transceivers With Enhanced Automatic Powerdown
• Manufacturer: Intersil Corporation

Electrical Specifications
ENHANCED AUTOMATIC POWERDOWN (FORCEON = GND, FORCEOFF = V
Receiver Input Thresholds to
INVALID High
Receiver Input Thresholds to
INVALID Low
INVALID, Output Voltage Low
INVALID, Output Voltage High
Receiver Positive or Negative
Threshold to INVALID High Delay
(t
Receiver Positive or Negative
Threshold to INVALID Low Delay
(t
Receiver Positive or Negative
Threshold to INVALID Low Delay
(t
Receiver or Transmitter Edge to
Transmitters Enabled Delay (t
Receiver or Transmitter Edge to
Transmitters Disabled Delay
(t
TIMING CHARACTERISTICS
Maximum Data Rate
ISL4238E/44E
Maximum Data Rate
ISL4245E
Receiver Propagation Delay
Receiver Skew
Transmitter Propagation Delay
ISL4238E/44E
Transmitter Skew ISL4238E/44E
Transmitter Propagation Delay
ISL4245E
Transmitter Skew ISL4245E
AUTOPWDN
INVH
INVL
INVL
)
)
)
PARAMETER
)
WU
)
7
Test Conditions: ISL4238E V
ISL424XE V
See Figure 6
See Figure 6
I
I
ISL4238E
ISL4244E/45E
Note 5
Note 5
R
R
Switching
Receiver Input to Receiver
Output,
C
t
Transmitter Input to
Transmitter Output,
C
t
Transmitter Input to
Transmitter Output,
C
t
OUT
OUT
PHL
PHL
PHL
L
L
L
L
L
= 3kΩ, One Transmitter
= 3kΩ, C
= 150pF
= 1000pF, R
= 1000pF, R
- t
- t
- t
= 1.6mA
= -1.0mA
PLH
PLH
PLH
CC
, C
ISL4238E, ISL4244E, ISL4245E
(Note 7), R
(Note 6), R
L
= 1000pF, One Transmitter Switching
L
= 3V to 5.5V, C
= 150pF
L
L
= 3kΩ
= 3kΩ
TEST CONDITIONS
L
L
= 3kΩ, C
= 3kΩ, C
CC
C
V
V
C
t
t
t
t
t
t
PHL
PLH
PHL
PLH
PHL
PLH
CC
CC
1
L
L
= 3.15V to 5.5V, C
- C
= 1000pF
= 1000pF
= 3V to 4.5V, C
= 4.5V to 5.5V,
L
L
4
= 1000pF
= 1000pF
= 0.1
µ
F; Unless Otherwise Specified. Typicals are at T
CC
L
)
1
= 250pF
- C
4
= 0.1
TEMP
µ
(
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
o
25
25
25
25
25
25
25
25
25
25
25
25
F; V
C)
CC
V
= 3V, C
CC
1000
1000
MIN
-2.7
-0.3
250
250
15
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-0.6
1
- C
2000
1500
TYP
0.15
0.35
0.75
0.85
0.35
100
500
900
120
150
100
0.5
0.9
0.2
0.3
0.8
0.9
0.4
0.5
0.4
4
60
30
40
20
30
50
50
60
-
-
-
-
= 0.22
µ
A
MAX
F;
0.35
0.55
100
150
100
250
300
200
250
200
250
= 25
2.7
0.3
0.4
1.5
0.3
0.5
1.1
1.1
0.8
0.8
0.7
0.7
50
60
60
1
1
1
-
-
-
-
-
o
C
UNITS
kbps
kbps
kbps
kbps
sec
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
µs
µs
µs
µs
ns
ns
µs
µs
µs
µs
ns
ns
V
V
V
V