MAX3243ECTJ View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX3243ECTJ
Maxim Integrated
MAX3243ECTJ Datasheet PDF : 19 Pages
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MAX3221E/MAX3223E/MAX3243E
±15kV ESD-Protected, 1µA, 3.0V to 5.5V, 250kbps,
RS-232 Transceivers with AutoShutdown
Pin Description
MAX3221E
TQFN- SSOP/
EP TSSOP
14
1
16
2
15
3
1
4
2
5
3
6
4
7
5
8
6
9
7
10
8
11
9
12
10
13
—
—
11
14
12
15
13
16
—
—
PIN
MAX3223E
TQFN-
EP
DIP/
SSOP/
TSSOP
MAX3243E
SO/
SSOP/
TSSOP
TQFN-
EP
19
1
—
22
1
20
2
3
4
5
7, 14
8, 13
2
3
4
5
6
7
9, 16
10, 15
28
28
27
27
24
23
1
2
3
4-8
15-19
29
30
31
1-5
13, 14,
15, 17,
18
9
11
21
—
10, 11
12, 13
12, 13, 10, 11,
14
12
12
14
23
—
6, 15
—
16
17
8, 17
—
18
19
9, 10,
11
6, 7, 8
20
19
25
24
26
26
18
20
22
—
—
—
—
21
NAME
FUNCTION
EN
C1+
V+
C1-
C2+
C2-
V-
R_IN
Receiver Enable Control. Drive low for normal
operation. Drive high to force the receiver outputs
(R_OUT) into a high-impedance state.
Positive terminal of the voltage doubler Charge-Pump
Capacitor
+5.5V generated by the charge pump
Negative terminal of the voltage doubler Charge-Pump
Capacitor
Positive terminal of inverting Charge-Pump Capacitor
Negative terminal of inverting Charge-Pump Capacitor
-5.5V generated by the charge pump
RS-232 Receiver Inputs
R_OUT TTL/CMOS Receiver Outputs
INVALID
Output of the Valid Signal Detector. INVALID is enabled
high if a valid RS-232 level is present on any receiver
input.
T_IN TTL/CMOS Transmitter Inputs
Drive high to override automatic circuitry keeping
FORCEON transmitters and charge pump on (FORCEOFF must be
high) (Table 1).
T_OUT RS-232 Transmitter Outputs
R2OUTB
TTL/CMOS Noninverting Complementary Receiver
Output. Always active.
GND Ground
VCC
+3.0V to +5.5V Supply Voltage
FORCEOF
F
Force-Off Input, active low. Drive low to shut down
transmitters, receivers (MAX3243E, except R2OUTB),
and on-board charge pump. This overrides all
automatic circuitry and FORCEON (Table 1).
SHDN Shutdown Control, Active Low
6
Maxim Integrated
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