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ST3241E

鹵15KV ESD PROTECTED 3 TO 5.5V, 400KBPS,

RS-232 TRANSCEIVER WITH AUTO-POWERDOWN

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ESD PROTECTION FOR RS-232 I/O PINS:

鹵8KV IEC 1000-4-2 CONTACT DISCHARGE

鹵15KV HUMAN BODY MODEL

1碌A(chǔ) SUPPLY CURRENT ACHIEVED WHEN

IN AUTO-POWERDOWN

250Kbps MINIMUM GUARANTEED DATA

RATE

GUARANTEED 6V/碌s SLEW RATE RANGE

GUARANTEED MOUSE DRIVEABILITY

0.1碌F EXTERNAL CAPACITORS

MEET EIA/TIA-232 SPECIFICATIONS DOWN

TO 3V

AVAILABLE IN SO-28, SSOP28 AND

TSSOP28 PACKAGES

SSOP

SOP

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 comunication standards providing high

data rate capability and enhanced electrostatic

discharge (ESD) protection. All transmitter outputs

and receiver input are protected to 鹵8KV USING

IEC 1000-4-2 contact discharge and 鹵15KV using

the Human Body Model. The receiver R2 is

always active to implement a wake-up feature for

serial port.

The ST3241E has a proprietary low-dropout

transmitter output stage enabling true RS-232

performance from a 3.0V to 5.5V supply with a

dual charge pump. The device is guaranteed to

run at data rates of 250kbps while maintaining

RS-232 output levels.

TSSOP

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

intended for notebook or subnotebook computers.

Receivers R1 and R2 have extra outputs in

addition to their standard outputs. These extra

outputa are always active.

Typical application are in notebook, subnotebook,

palmtop computers, battery-powered equipment,

hand-held equipment, peripherals and printers.

October 2002

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