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MAX3232CPE Datasheet(PDF) 4 Page - Maxim Integrated Products

Part No. MAX3232CPE
Description  3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232 Transceivers Using Four 0.1uF External Capacitors
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232
Transceivers Using Four 0.1µF External Capacitors
4
_______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
(VCC = +3.3V, 235kbps data rate, 0.1µF capacitors, all transmitters loaded with 3kΩ, TA = +25°C, unless otherwise noted.)
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
0
MAX3222/MAX3232
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
LOAD CAPACITANCE (pF)
2000
3000
1000
4000
5000
VOUT+
VOUT-
0
2
4
6
8
10
12
14
16
18
20
22
150
MAX3222/MAX3232
SLEW RATE
vs. LOAD CAPACITANCE
LOAD CAPACITANCE (pF)
2000
3000
1000
4000
5000
FOR DATA RATES UP TO 235kbps
+SLEW
-SLEW
0
5
10
15
20
25
30
35
40
0
MAX3222/MAX3232
SUPPLY CURRENT vs. LOAD CAPACITANCE
WHEN TRANSMITTING DATA
LOAD CAPACITANCE (pF)
2000
3000
1000
4000
5000
235kbps
120kbps
20kbps
RL = 3kΩ, CL = 1000pF, one transmitter switching,
MBAUD = GND
Normal operation
CONDITIONS
Normal operation
ns
200
Receiver Output Disable Time
| tPHL - tPLH |, MBAUD = GND
ns
100
0.15
250
µs
0.15
Receiver Propagation Delay
ns
200
Receiver Output Enable Time
UNITS
MIN
TYP
MAX
PARAMETER
TIMING CHARACTERISTICS—MAX3237
(VCC = +3.0V to +5.5V, C1–C4 = 0.1µF (Note 2), TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
VCC = 3.0V to 4.5V, RL = 3kΩ, CL = 250pF,
one transmitter switching, MBAUD = VCC
1000
VCC = 4.5V to 5.5V, RL = 3kΩ, CL = 1000pF,
one transmitter switching, MBAUD = VCC
kbps
1000
Maximum Data Rate
R_IN to R_OUT, CL = 150pF
| tPHL - tPLH |, MBAUD = VCC
ns
25
Transmitter Skew
| tPHL - tPLH |
ns
50
Receiver Skew
630
V/µs
430
tPHL
tPLH
CL = 150pF to 2500pF,
MBAUD = GND
CL = 150pF
to 1000pF
MBAUD =
GND
VCC = 3.3V, RL = 3Ω to 7kΩ,
+3V to -3V or -3V to +3V,
TA = +25°C
Transition-Region Slew Rate
MBAUD =
VCC
24
150
Note 2: MAX3222/MAX3232/MAX3241: C1–C4 = 0.1µF tested at 3.3V ±10%; C1 = 0.047µF, C2–C4 = 0.33µF tested at 5.0V ±10%.
MAX3237: C1–C4 = 0.1µF tested at 3.3V ±5%; C1–C4 = 0.22µF tested at 3.3V ±10%; C1 = 0.047µF, C2–C4 = 0.33µF tested
at 5.0V ±10%.
Note 3: Transmitter input hysteresis is typically 250mV.




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