参数资料
| 型号： | ISL4238EIR-T |
| 厂商： | Intersil |
| 文件页数： | 15/17页 |
| 文件大小： | 0K |
| 描述： | IC 5DRVR/3RCVR RS232 3V 32-QFN |
| 标准包装： | 6,000 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 5/3 |
| 规程： | RS232 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
| 包装： | 带卷 (TR) |
7
FN8038.5
May 13, 2010
ENHANCED AUTOMATIC POWER-DOWN (FORCEON = GND, FORCEOFF = VCC)
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
IOUT = 1.6mA
Full
-
0.4
V
INVALID, Output Voltage High
IOUT = -1.0mA
Full
VCC - 0.6
-
V
Receiver Positive or Negative
Threshold to INVALID High Delay
(tINVH)
25
-
0.5
1
s
Full
-
0.9
1.5
s
Receiver Positive or Negative
Threshold to INVALID Low Delay
(tINVL)
ISL4238E
25
-
60
100
s
Full
100
150
s
Receiver Positive or Negative
Threshold to INVALID Low Delay
(tINVL)
ISL4244E/ISL42445E
25
-
30
50
s
Full
40
60
s
Receiver or Transmitter Edge to
Transmitters Enabled Delay (tWU)
(Note 4)
Full
-
20
100
s
Receiver or Transmitter Edge to
Transmitters Disabled Delay
(tAUTOPWDN)
(Note 4)
Full
15
30
60
sec
TIMING CHARACTERISTICS
Maximum Data Rate
ISL4238E/4244E
RL =3kΩ, CL = 1000pF, One Transmitter Switching
Full
250
500
-
kbps
Maximum Data Rate
ISL4245E
RL = 3kΩ, One Transmitter
Switching
CL = 1000pF
Full
250
900
-
kbps
VCC = 3V to 4.5V, CL = 250pF
Full
1000
2000
-
kbps
VCC = 4.5V to 5.5V,
CL = 1000pF
Full
1000
1500
-
kbps
Receiver Propagation Delay
Receiver Input to Receiver
Output,
CL = 150pF
tPHL
25
-
0.15
0.3
s
Full
-
0.2
0.35
s
tPLH
25
-
0.3
0.5
s
Full
-
0.35
0.55
s
Receiver Skew
tPHL - tPLH, CL = 150pF
25
-
120
250
ns
Full
-
150
300
ns
Transmitter Propagation Delay
ISL4238E/44E
Transmitter Input to
Transmitter Output,
CL = 1000pF, RL = 3kΩ
tPHL
25
-
0.75
1
s
Full
-
0.85
1.1
s
tPLH
25
-
0.8
1
s
Full
-
0.9
1.1
s
Transmitter Skew ISL4238E/44E
25
-
50
200
ns
Full
-
100
250
ns
Transmitter Propagation Delay
ISL4245E
Transmitter Input to
Transmitter Output,
CL = 1000pF, RL = 3kΩ
tPHL
25
-
0.4
0.8
s
Full
-
0.5
0.8
s
tPLH
25
-
0.35
0.7
s
Full
-
0.4
0.7
s
Transmitter Skew ISL4245E
25
-
50
200
ns
Full
-
60
250
ns
Receiver Output Enable Time
Normal Operation, RL = 1kΩ to 0.5VCC, CL = 15pF
25
-
200
350
ns
Full
-
200
400
ns
Electrical Specifications
Test Conditions: ISL4238E VCC = 3.15V to 5.5V, C1 to C4 = 0.1F; VCC = 3V, C1 to C4 = 0.22F;
ISL424xE VCC = 3V to 5.5V, C1 to C4 = 0.1F; Unless Otherwise Specified. Typicals are at TA = +25°C
PARAMETER
TEST CONDITIONS
TEMP
(°C)
MIN
(Note 7)
TYP
MAX
(Note 7) UNITS
ISL4238E, ISL4244E, ISL4245E
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