ST3241EB Просмотр технического описания (PDF) - STMicroelectronics

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ST3241EB

±15 kV ESD protected 3 to 5.5 V, 400 kbps, RS-232 transceiver with auto power-down

STMicroelectronics 

ST3241EB, ST3241EC

±15 kV ESD protected 3 to 5.5 V, 400 kbps, RS-232 transceiver

with auto power-down

Datasheet - production data

Features

ESD protection for RS-232 I/O pins: ±8 kV

IEC 1000-4-2 contact discharge ±15 kV

human body model

1 µA supply current achieved when in auto

power-down

250 kbps minimum guaranteed data rate

Guaranteed 6 V/µs slew rate range

Guaranteed mouse drive ability

0.1 µF external capacitors

Meets EIA/TIA-232 specifications down to

3V

Available in SSOP 28 package

Description

The ST3241E device consists of 3 drivers,

5 receivers, and a dual charge-pump circuit. The

device meets the requirements of EIA/TIA and

V.28/V.24 communication standards providing

high data rate capability and enhanced

electrostatic discharge (ESD) protection. All

transmitter outputs and receiver inputs are

protected to ±8 kV using IEC 1000-4-2 contact

discharge and ±15 kV using the human body

model. The receiver R2 is always active to

implement a wake-up feature for the serial port.

The ST3241E has a proprietary low-dropout

transmitter output stage enabling true RS-232

performance from a 3.0 V to 5.5 V supply with a

dual charge pump. The device is guaranteed to

run at data rates of 250 kbps while maintaining

RS-232 output levels.

It is a complete serial port (3 drivers, 5 receivers)

intended for notebook or sub-notebook

computers. Receivers R1 and R2 have extra

outputs in addition to their standard outputs.

These extra outputs are always active.

Typical applications are in notebooks, sub-

notebooks, palmtop computers, battery-powered

equipment, hand-held equipment, peripherals,

and printers.

March 2017

DocID9066 Rev 6

This is information on a product in full production.

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