SP3239EEY Exar Corporation, SP3239EEY Datasheet

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SP3239EEY

Manufacturer Part Number
SP3239EEY
Description
Manufacturer
Exar Corporation
Datasheet
1.SP3239EEY.pdf (16 pages)
Applicable U.S. Patents - 5,306,954; and other patents pending.
FEATURES
The SP3239E device is an RS-232 transceiver solution intended for portable or hand-held
applications such as notebook and palmtop computers. The SP3239E 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 SP3239E device to
deliver compliant RS-232 performance from a single power supply ranging from +3.0V to
+5.0V. The SP3239E is a 5-driver/3-receiver device, ideal for laptop/notebook computer and
PDA applications. The SP3239E includes one complementary receiver that remains alert to
monitor an external device's Ring Indicate signal while the device is shutdown.
Date: 02/28/05
S
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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
Minimum 250Kbps data rate under load
Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V
Variations
Enhanced ESD Specifications:
Intelligent +3.0V to +5.5V RS-232 Transceivers
+15KV Human Body Model
+15KV IEC1000-4-2 Air Discharge
+8KV IEC1000-4-2 Contact Discharge
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SP3239E Intelligent +3.0V to +5.5V RS-232 Transceiver
R
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Now Available in Lead Free Packaging
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SHUTDOWN
A
T 5 OUT
T 4 OUT
U
T 2 OUT
T 3 OUT
T 1 OUT
T
R 1 IN
R3IN
R 2 IN
GND
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SP3239E
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®
© Copyright 2005 Sipex Corporation
SELECTION TABLE
SP3239E
T
28
25
24
20
19
18
17
16
27
26
22
21
15
23
T
L
Y
Y
Y
Y
T 1 IN
C1+
T 2 IN
T 3 IN
T 4 IN
DESCRIPTION
N
V+
V
R 1 OUT
R 2 OUT
R 1 OUT
NC
3
C1-
R 3 OUT
T 5 IN
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CC
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SP3239EEY Summary of contents

Page 1

Intelligent +3.0V to +5.5V RS-232 Transceivers 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 Minimum 250Kbps data rate under load Regulated Charge ...

Page 2

ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions ...

Page 3

V = +3.0 to +5.5, C1 -C4 = 0.1µF (tested at 3.3V + 5%), C1-C4 = 0.22µF (tested at 3.3V + 10%), C1 = 0.047µF, and C2-C4 = 0.33µF (tested at 5. 10%), ...

Page 4

Unless otherwise noted, the following perfomance characteristics apply for V pump capacitors, and T = +25°C. AMB TRANSMITTER OUTPUT vs. LOAD CAPACITANCE 1000 2000 3000 4000 - SUPPLY CURRENT vs LOAD CAPACITANCE ...

Page 5

PIN DESCRIPTION ...

Page 6

SHUTDOWN Figure 4. SP3239E Pinout Configuration TTL/CMOS INPUTS TTL/CMOS OUTPUTS Figure 5. SP3239E Typical Operating Circuit Date: 02/28/05 28 C2+ 1 C1+ 2 GND ...

Page 7

DESCRIPTION The SP3239E device meets the EIA/TIA-232 and ITU-T V.28/V.24 communication protocols and can be implemented in battery-powered, por- table, or hand-held applications such as notebook or palmtop computers. The SP3239E device features Sipex's proprietary and patented (U.S. #5,306,954) on-board ...

Page 8

Receivers The receivers convert ±5.0V EIA/TIA-232 levels to TTL or CMOS logic output levels. The truth table logic of the driver and receiver outputs can be found in Table 2. The SP3239E includes an additional non- inverting receiver with an ...

Page 9

If the output voltages exceed a magnitude of 5.5V, the charge pump is disabled. This oscillator controls the four phases of the voltage shifting (Figure 12). A ...

Page 10

Figure 10. Charge Pump — Phase 1 Figure 11. Charge Pump — Phase Figure 12. Charge Pump Waveforms Figure 13. Charge Pump — Phase 3 Figure 14. Charge Pump — Phase 4 Date: 02/28/05 ...

Page 11

0.1µF 25 C1 0.1µF 3 C2- R OUT OUT OUT OUT ...

Page 12

ESD TOLERANCE The SP3239E device incorporates ruggedized ESD cells on all driver output and receiver input pins. The ESD structure is improved over our previous family for more rugged applications and environments sensitive to electro-static discharges and associated transients. The ...

Page 13

Power Source Figure 17. ESD Test Circuit for IEC1000-4-2 The circuit model in Figures 19 and 20 represent the typical ESD testing circuit used for all three methods. The C is initially charged with the ...

Page 14

INDEX AREA Pin SSOP JEDEC MO-150 (AH) Variation MIN NOM SYMBOL 0. 1.65 1. 9.9 10.2 E ...

Page 15

INDEX AREA Pin TSSOP JEDEC MO-153 (AE) Variation MIN NOM SYMBOL 9.6 9.7 ...

Page 16

... SP3239ECA SP3239ECA/TR SP3239ECY SP3239ECY/TR SP3239EEA SP3239EEA/TR SP3239EEY SP3239EEY/TR Available in lead free packaging. To order add “-L” suffix to part number. Example: SP3239EEA/TR = standard; SP3239EEA-L/TR = lead free /TR = Tape and Reel Pack quantity is 1,500 for SSOP or TSSOP CLICK HERE TO ORDER SAMPLES Corporation ANALOG EXCELLENCE ...

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