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MAX3222E Datasheet(PDF) 6 Page - Maxim Integrated Products

Part No. MAX3222E
Description  ±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V, Up to 1Mbps, True RS-232 Transceivers
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX3222E Datasheet(HTML) 6 Page - Maxim Integrated Products

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______________________________________________________________Pin Description
±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V,
Up to 1Mbps, True RS-232 Transceivers
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VCC = +3.3V, 250kbps data rate, 0.1µF capacitors, all transmitters loaded with 3k
Ω and CL, TA = +25°C, unless otherwise noted.)
-6
-2
-4
2
0
4
6
-3
-5
1
-1
3
5
2.0
3.0
3.5
2.5
4.0
4.5
5.0
SUPPLY VOLTAGE (V)
VOUT-
VOUT+
1 TRANSMITTER 250kbps
4 TRANSMITTERS 15.6kbps
ALL TRANSMITTERS LOADED
WITH 3k
Ω +1000pF
MAX3237E
TRANSMITTER OUTPUT VOLTAGE vs.
SUPPLY VOLTAGE (MBAUD = GND)
0
10
20
30
40
50
2.0
MAX3237E
SUPPLY CURRENT vs.
SUPPLY VOLTAGE (MBAUD = GND)
SUPPLY VOLTAGE (V)
3.0
3.5
2.5
4.0
4.5
5.0
1 TRANSMITTER AT 250kbps
4 TRANSMITTERS AT 15.6kbps
ALL TRANSMITTERS LOADED
WITH 3k
Ω AND 1000pF
-5.5V Generated by the Charge Pump
V-
4
RS-232 Transmitter Outputs
T_OUT
5, 6, 7,
10, 12
RS-232 Receiver Inputs
R_IN
8, 9, 11
TTL/CMOS Receiver Outputs
R_OUT
18, 20, 21
+5.5V Generated by the Charge Pump
V+
27
Negative Terminal of Voltage-Doubler
Charge-Pump Capacitor
C1-
25
Positive Terminal of Inverting Charge-
Pump Capacitor
C2+
1
Negative Terminal of Inverting
Charge-Pump Capacitor
C2-
3
Positive Terminal of Voltage-Doubler
Charge-Pump Capacitor
C1+
28
Receiver Enable. Active low.
EN
13*
FUNCTION
NAME
MAX3237E
TTL/CMOS Transmitter Inputs
T_IN
17*, 19*, 22*,
23*, 24*
Ground
GND
2
7
7
8, 17
8, 15
9, 16
9, 14
10, 15
10, 13
12, 13
11, 12
3
3
4
4
5
5
6
6
2
2
1
1
TSSOP/
SSOP
SO/DIP
MAX3222E
18
16
7
6
8, 17
7, 14
9, 16
8, 13
12, 15
9, 12
13, 14
10, 11
3
2
4
3
5
4
6
5
2
1
TSSOP/
SSOP
SO/DIP
MAX3232E
18
15
3
9, 10, 11
4–8
15–19
12, 13, 14
27
24
1
2
28
23
PIN
MAX3241E
25


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