參數(shù)資料
型號： ISL4238E
廠商： Intersil Corporation
英文描述： QFN Packaged, ±15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps/1Mbps, RS-232 Transceivers with Enhanced Automatic Powerdown(QFN封裝, ±15kV ESD 防護(hù), +2.7V至+5.5V, 10Nanoamp, 250kbps/1Mbps, 具有自動斷電功能的RS-232收發(fā)器)
中文描述： QFN封裝，具有± 15kV ESD保護(hù)，2.7V至5.5V，10Nanoamp，250kbps/1Mbps，RS - 232接口的增強(qiáng)型自動掉電封裝（QFN封裝，具有± 15kV ESD防護(hù)，收發(fā)器為2.7V至5.5V之間，10Nanoamp，250kbps/1Mbps，具有自動斷電功能的RS - 232接口收發(fā)器）
文件頁數(shù)： 7/17頁
文件大?。?/td> 457K
代理商： ISL4238E
7
ENHANCED AUTOMATIC POWERDOWN
(FORCEON = GND, FORCEOFF = V
CC
)
Receiver Input Thresholds to
INVALID High
See Figure 6
Full
-2.7
-
2.7
V
Receiver Input Thresholds to
INVALID Low
See Figure 6
Full
-0.3
-
0.3
V
INVALID, Output Voltage Low
I
OUT
= 1.6mA
I
OUT
= -1.0mA
Full
-
-
0.4
V
INVALID, Output Voltage High
Full
V
CC
-0.6
-
-
-
V
Receiver Positive or Negative
Threshold to INVALID High Delay
(t
INVH
)
Receiver Positive or Negative
Threshold to INVALID Low Delay
(t
INVL
)
Receiver Positive or Negative
Threshold to INVALID Low Delay
(t
INVL
)
Receiver or Transmitter Edge to
Transmitters Enabled Delay (t
WU
)
Receiver or Transmitter Edge to
Transmitters Disabled Delay
(t
AUTOPWDN
)
TIMING CHARACTERISTICS
25
0.5
1
μ
s
Full
-
0.9
1.5
μ
s
ISL4238E
25
-
60
100
μ
s
Full
100
150
μ
s
ISL4244E/45E
25
-
30
50
μ
s
Full
40
60
μ
s
Note 5
Full
-
20
100
μ
s
Note 5
Full
15
30
60
sec
Maximum Data Rate
ISL4238E/44E
R
L
= 3k
,
C
L
= 1000pF, One Transmitter Switching
Full
250
500
-
kbps
Maximum Data Rate
ISL4245E
R
L
= 3k
,
One Transmitter
Switching
C
L
= 1000pF
V
CC
= 3V to 4.5V, C
L
= 250pF
V
CC
= 4.5V to 5.5V,
C
L
= 1000pF
t
PHL
Full
250
900
-
kbps
Full
1000
2000
-
kbps
Full
1000
1500
-
kbps
Receiver Propagation Delay
Receiver Input to Receiver
Output,
C
L
= 150pF
25
-
0.15
0.3
μ
s
Full
-
0.2
0.35
μ
s
t
PLH
25
-
0.3
0.5
μ
s
Full
-
0.35
0.55
μ
s
Receiver Skew
t
PHL
- t
PLH
, C
L
= 150pF
25
-
120
250
ns
Full
-
150
300
ns
Transmitter Propagation Delay
ISL4238E/44E
Transmitter Input to
Transmitter Output,
C
L
= 1000pF, R
L
= 3k
t
PHL
25
-
0.75
1
μ
s
Full
-
0.85
1.1
μ
s
t
PLH
25
-
0.8
1
μ
s
Full
-
0.9
1.1
μ
s
Transmitter Skew ISL4238E/44E
t
PHL
- t
PLH
(Note 7), R
L
= 3k
, C
L
= 1000pF
25
-
50
200
ns
Full
-
100
250
ns
Transmitter Propagation Delay
ISL4245E
Transmitter Input to
Transmitter Output,
C
L
= 1000pF, R
L
= 3k
t
PHL
25
-
0.4
0.8
μ
s
Full
-
0.5
0.8
μ
s
t
PLH
25
-
0.35
0.7
μ
s
Full
-
0.4
0.7
μ
s
Transmitter Skew ISL4245E
t
PHL
- t
PLH
(Note 6), R
L
= 3k
, C
L
= 1000pF
25
-
50
200
ns
Full
-
60
250
ns
Electrical Specifications
Test Conditions: ISL4238E V
CC
= 3.15V to 5.5V, C
1
- C
4
= 0.1
μ
F; V
CC
= 3V, C
1
- C
4
= 0.22
μ
F;
ISL424XE V
CC
= 3V to 5.5V, C
1
- C
4
= 0.1
μ
F; Unless Otherwise Specified. Typicals are at T
A
= 25
o
C
PARAMETER
TEST CONDITIONS
TEMP
(
o
C)
MIN
TYP
MAX
UNITS
ISL4238E, ISL4244E, ISL4245E
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