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ISL4223E датащи(PDF) 5 Page - Intersil Corporation

номер детали ISL4223E
подробное описание детали  QFN Packaged, /-15kV ESD Protected, 2.7V to 5.5V, 150Nanoamp, 250kBps, RS-232 Transmitters/Receivers
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производитель  INTERSIL [Intersil Corporation]
домашняя страница  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL4223E датащи(HTML) 5 Page - Intersil Corporation

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Detailed Description
The ISL422XE operate from a single +2.7V to +5.5V supply,
guarantee a 250kBps minimum data rate, require only four
small external 0.1
µF capacitors, feature low power
consumption, and meet all ElA RS-232C and V.28
specifications even with VCC = 3.0V. The circuit is divided
into three sections: The charge pump, the transmitters, and
the receivers.
Charge-Pump
Intersil’s new ISL422XE devices utilize regulated on-chip
dual charge pumps as voltage doublers, and voltage
inverters to generate
±5.5V transmitter supplies from a VCC
supply as low as 3.0V. This allows them to maintain RS-232
compliant output levels over the
±10% tolerance range of
3.3V powered systems. The efficient on-chip power supplies
require only four small, external 0.1
µF capacitors for the
voltage doubler and inverter functions. The charge pumps
operate discontinuously (i.e., they turn off as soon as the V+
RECEIVER INPUTS
Input Voltage Range
25
-25
-
25
V
Input Threshold Low
VCC = 3.3V
25
0.6
1.2
-
V
VCC = 5.0V
25
0.8
1.5
-
V
Input Threshold High
VCC = 3.3V
25
-
1.5
2.4
V
VCC = 5.0V
25
-
1.8
2.4
V
Input Hysteresis
25
-
0.5
-
V
Input Resistance
25
3
5
7
k
TRANSMITTER OUTPUTS
Output Voltage Swing
All Transmitter Outputs Loaded with 3k
Ω to Ground
Full
±5.0
±5.4
-
V
Output Resistance
VCC = V+ = V- = 0V, Transmitter Output = ±2V
Full
300
10M
-
Output Short-Circuit Current
Full
-
±35
±60
mA
Output Leakage Current
VOUT = ±12V, VCC = 0V or 3V to 5.5V,
Automatic Powerdown or FORCEOFF = GND
Full
-
-
±25
µA
TIMING CHARACTERISTICS
Maximum Data Rate
RL = 3kΩ, CL = 1000pF, One Transmitter Switching
Full
250
500
-
kBps
Receiver Propagation Delay
Receiver Input to Receiver
Output, CL = 150pF
tPHL
25
-
0.15
-
µs
tPLH
25
-
0.15
-
µs
Receiver Output Enable Time
Normal Operation
25
-
200
-
ns
Receiver Output Disable Time
Normal Operation
25
-
200
-
ns
Transmitter Skew
tPHL - tPLH (Note 2)
25
-
100
-
ns
Receiver Skew
tPHL - tPLH
25
-
50
-
ns
Transition Region Slew Rate
VCC = 3.3V, RL = 3kΩ to 7kΩ,
Measured From 3V to -3V
or -3V to 3V
CL = 150pF to 2500pF
25
4
-
30
V/
µs
CL = 150pF to 1000pF
25
6
-
30
V/
µs
ESD PERFORMANCE
RS-232 Pins (TOUT, RIN)
Human Body Model
25
-
±15
-
kV
IEC61000-4-2 Contact Discharge
25
-
±8-
kV
IEC61000-4-2 Air Gap Discharge
25
-
±15
-
kV
All Other Pins
Human Body Model
25
-
±2-
kV
NOTE:
2. Transmitter skew is measured at the transmitter zero crossing points.
Electrical Specifications
Test Conditions: VCC = 3V to 5.5V, C1 - C4 = 0.1µF; Unless Otherwise Specified.
Typicals are at TA = 25
oC (Continued)
PARAMETER
TEST CONDITIONS
TEMP
(oC)
MIN
TYP
MAX
UNITS
ISL4221E, ISL4223E


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производительномер деталидатащиподробное описание детали
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