1 Features
• RS-232 Bus-terminal esd protection exceeds
±15 kV using human-body model (HBM)
• Meets or exceeds the requirements of TIA/
EIA-232-F and ITU V.28 standards
• Operates with 3-V to 5.5-V VCC supply
• Operates up to 250 kbit/s
• Two drivers and two receivers
• Low supply current: 300 μA Typical
• External capacitors: 4 × 0.1 μF
• Accepts 5-V logic input with 3.3-V supply
• Alternative high-speed terminal-compatible
devices (1 Mbit/s)
– SN65C3232 (–40°C to 85°C)
– SN75C3232 (0°C to 70°C)

2 Applications
• Industrial PCs
• Wired networking
• Data center and enterprise networking
• Battery-powered systems
• PDAs
• Notebooks
• Laptops
• Palmtop PCs
• Hand-held equipment

3 Description
The MAX3232 device consists of two line drivers,
two line receivers, and a dual charge-pump circuit
with ±15-kV ESD protection terminal to terminal
(serial-port connection terminals, including GND).
The device meets the requirements of TIA/EIA-232-
F and provides the electrical interface between
an asynchronous communication controller and the
serial-port connector. The charge pump and four small
external capacitors allow operation from a single 3-V
to 5.5-V supply. The devices operate at data signaling
rates up to 250 kbit/s and a maximum of 30-V/μs
driver output slew rate.