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MAX3232CPE Datasheet(PDF) 5 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
_______________________________________________________________________________________
5
-7.5
-5.0
-2.5
0
2.5
5.0
7.5
0
MAX3241
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
LOAD CAPACITANCE (pF)
2000
3000
1000
4000
5000
VOUT+
1 TRANSMITTER AT 235kbps
2 TRANSMITTERS AT 30kbps
VOUT-
ALL OUTPUTS LOADED WITH 3k
Ω +CL
0.1
µF CHARGE-PUMP CAPACITORS
FOR ALL DATA RATES UP TO 235kbps
4
6
8
10
12
14
16
18
20
22
24
0
MAX3241
SLEW RATE
vs. LOAD CAPACITANCE
LOAD CAPACITANCE (pF)
2000
3000
1000
4000
5000
+SLEW
-SLEW
0
5
10
15
20
25
30
35
45
40
0
MAX3241
SUPPLY CURRENT vs. LOAD
CAPACITANCE WHEN TRANSMITTING DATA
LOAD CAPACITANCE (pF)
2000
3000
1000
4000
5000
235kbps
120kbps
20kbps
-7.5
-5.0
-2.5
0
2.5
5.0
7.5
0
MAX3237
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE (MBAUD = GND)
LOAD CAPACITANCE (pF)
2000
3000
1000
4000
5000
1 TRANSMITTER AT 240kbps
4 TRANSMITTERS AT 15kbps
3k
Ω + CL LOADS
VCC = 3.3V
0
10
20
30
50
40
60
70
0
MAX3237
SLEW RATE vs. LOAD CAPACITANCE
(MBAUD = VCC)
LOAD CAPACITANCE (pF)
500
1000
1500
2000
-SLEW, 1Mbps
+SLEW, 1Mbps
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/16 DATA RATE
3k
Ω + CL LOAD EACH OUTPUT
VCC = 3.3V
-SLEW, 2Mbps
+SLEW, 2Mbps
-7.5
-5.0
-2.5
0
2.5
5.0
7.5
0
MAX3237
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE (MBAUD = VCC)
LOAD CAPACITANCE (pF)
500
1000
1500
2000
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/16 DATA RATE
3k
Ω + CL LOAD, EACH OUTPUT
VCC = 3.3V
2Mbps
1.5Mbps
1Mbps
2Mbps
1Mbps
1.5Mbps
0
10
20
30
40
50
60
0
MAX3237
SUPPLY CURRENT vs.
LOAD CAPACITANCE (MBAUD = GND)
LOAD CAPACITANCE (pF)
2000
3000
1000
4000
5000
240kbps
120kbps
20kbps
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/16 DATA RATE
3k
Ω + CL LOADS
VCC = 3.3V
0
2
4
6
8
10
12
0
MAX3237
SLEW RATE vs. LOAD CAPACITANCE
(MBAUD = GND)
LOAD CAPACITANCE (pF)
2000
3000
1000
4000
5000
+SLEW
-SLEW
1 TRANSMITTER AT 240kbps
4 TRANSMITTERS AT 15kbps
3k
Ω + CL LOADS
VCC = 3.3V
0
10
30
20
40
50
60
70
0
MAX3237
SKEW vs. LOAD CAPACITANCE
(tPLH - tPHL)
LOAD CAPACITANCE (pF)
1000
1500
500
2000
2500
MAX
MIN
AVERAGE; 10 PARTS
1 TRANSMITTER AT 512kbps
4 TRANSMITTERS AT 32kbps
3k
Ω + CL LOADS
VCC = 3.3V
MBAUD = VCC
_____________________________Typical Operating Characteristics (continued)
(VCC = +3.3V, 235kbps data rate, 0.1µF capacitors, all transmitters loaded with 3kΩ, TA = +25°C, unless otherwise noted.)




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