SP3238EEEY 데이터 시트보기 (PDF) - Signal Processing Technologies

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SP3238EEEY

Intelligent +3.0V to +5.5V RS-232 Transceiver

Signal Processing Technologies 

®

SP3238EE

Intelligent +3.0V to +5.5V RS-232 Transceiver

FEATURES

■ Meets true EIA/TIA-232-F Standards

from a +3.0V to +5.5V power supply

■ Interoperable with EIA/TIA-232 and

adheres to EIA/TIA-562 down to a +2.7V

power source

■ AUTO ON-LINE® circuitry automatically

wakes up from a 1µA shutdown

■ Minimum 250Kbps data rate under load

■ Regulated Charge Pump Yields Stable

RS-232 Outputs Regardless of VCC

Variations

■ Enhanced ESD Specifications for all TTL

and RS-232 I/O lines:

+15KV Human Body Model

+15KV IEC1000-4-2 Air Discharge

+8KV IEC1000-4-2 Contact Discharge

C2+ 1

GND 2

C2- 3

V- 4

T1OUT 5

T2OUT 6

T3OUT 7

R1IN 8

R2IN 9

T4OUT 10

R3IN 11

T5OUT 12

ONLINE 13

SHUTDOWN 14

28 C1+

27 V+

26 VCC

25 C1-

24 T1IN

SP3238EE 23 T2IN

22 T3IN

21 R1OUT

20 R2OUT

19 T4IN

18 R3OUT

17 T5IN

16 R1OUT

15 STATUS

Now Available in Lead Free Packaging

DESCRIPTION

The SP3238EE device is an RS-232 transceiver solution intended for portable or hand-held

applications such as notebook and palmtop computers. The SP3238EE uses an internal

high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V

operation. This charge pump and Sipex's driver architecture allow the SP3238EE device to

deliver compliant RS-232 performance from a single power supply ranging from +3.0V to

+5.0V. The SP3238E is a 5-driver/3-receiver device, ideal for laptop/notebook computer and

PDA applications. The SP3238EE includes one complementary receiver that remains alert to

monitor an external device's Ring Indicate signal while the device is shutdown.

The AUTO ON-LINE® feature allows the device to automatically "wake-up" during a shutdown

state when an RS-232 cable is connected and a connected peripheral is turned on. Otherwise,

the device automatically shuts itself down drawing less than 1µA.

Applicable U.S. Patents - 5,306,954; and other patents pending.

Date: 02/24/05

SP3238EE Intelligent +3.0V to +5.5V RS-232 Transceiver

1

© Copyright 2005 Sipex Corporation

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