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MAX3232E 3-V to 5.5-V Multichannel RS-232 Line Driver and Receiver

With ±15-kV IEC ESD Protection

1 Features

•ESD protection for RS-232 bus pins

–±15 kV (HBM)

–±8 kV (IEC61000-4-2, Contact discharge)

–±15 kV (IEC61000-4-2, Air-gap discharge)

•Meets or exceeds the requirements of TIA/

EIA-232-F and ITU V.28 standards

•Operates with 3-V to 5.5-V V

CC

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

•Pin compatible to alternative high-speed devices

(1 Mbit/s)

–SN65C3232E (–40°C to +85°C)

–SN75C3232E (0°C to 70°C)

2 Applications

•Industrial PCs

•Wired networking

•Data center and enterprise computing

•Battery-powered systems

•Notebooks

•Palmtop PCs

•Hand-held equipment

3 Description

The MAX3232E device consists of two line drivers,

two-line receivers, and a dual charge-pump circuit

with ±15-kV IEC ESD protection pin to pin (serial-port

connection pins, 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.

Device Information

(1)

PART NUMBERPACKAGEBODY SIZE (NOM)

MAX3232E

SOIC (D) (16)9.90 mm × 3.91 mm

SSOP (DB) (16)6.20 mm × 5.30 mm

SOIC (DW) (16)10.30 mm × 7.50 mm

TSSOP (PW) (16)5.00 mm × 4.40 mm

(1)For all available packages, see the orderable addendum at

the end of the data sheet.

RX

TX

POWER

3.3V,5V

DIN

ROUT

DOUT

RS232

RIN

RS232

2

2

2

2

Simplified Diagram

MAX3232E

SLLS664E – AUGUST 2005 – REVISED JUNE 2021

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Produktspecifikationer