±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V,
Up to 1Mbps, True RS-232 Transceivers
Pin Description (continued)
MAX3222E
PIN
MAX3232E
MAX3241E
TQFN
SO/
DIP
TSSOP/
SSOP
TQFN
SO/DIP/
SSOP/
16-PIN
TSSOP
20-PIN
TSSOP
MAX3237E SSOP/
SO/
TSSOP
QFN
MAX3246E
NAME
16 16
18
13
15
18
2
25 24
F5
GND
17 17
19
14
16
19
26
26 26
F2
VCC
FUNCTION
Ground
+3.0V to +5.5V Supply
Voltage
18 18
20
—
—
—
14*
9, 12 — 11, 14 —
—
1, 10,
11, 20
—
——
—
—
—
—
15*
22 21
B2
SHDN Shutdown Control. Active
low.
—
9, 16,
25,
32
C3, D3, B4,
C4, D4, E4,
B5, C5, D5,
E5
N.C.
No Connection. For
MAX3246E, these
locations are not
populated with solder
bumps.
——
MegaBaud Control Input.
Connect to GND for
—
MBAUD normal operation; connect
to VCC for 1Mbps
transmission rates.
——
—
—
—
—
EP —
—
EP
—
—
16
20,
21
19, 20
Noninverting
—
R_OUTB Complementary Receiver
Outputs. Always active.
Exposed Paddle. Solder
—
— EP
—
GND
the exposed paddle to
the ground alone or leave
unconnected.
8 _______________________________________________________________________________________