SP3243EET Sipex Corporation, SP3243EET Datasheet

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SP3243EET

Manufacturer Part Number
SP3243EET
Description
Intelligent +3.0V to +5.5V RS-232 transceivers
Manufacturer
Sipex Corporation
Datasheet

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Applicable U.S. Patents - 5,306,954; and other patents pending.
DESCRIPTION
The SP3223E and 3243E products are RS-232 transceiver solutions intended for portable or
hand-held applications such as notebook and palmtop computers. The SP3223E and 3243E
use an internal high-efficiency, charge-pump power supply that requires only 0.1 F capacitors
in 3.3V operation. This charge pump and Sipex's driver architecture allow the SP3223E/
3243E series to deliver compliant RS-232 performance from a single power supply ranging
from +3.3V to +5.0V. The SP3223E is a 2-driver/2-receiver device, and the SP3243E is a
3-driver/5-receiver device ideal for laptop/notebook computer and PDA applications.
The SP3243E includes one complementary receiver that remains alert to monitor an external
device's Ring Indicate signal while the device is shutdown.
The Auto-Online 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 1 A.
SP3223EDS/20
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Meets true EIA/TIA-232-F Standards
Enhanced ESD Specifications:
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-Online
wakes up from a 1 A shutdown
Minimum 120Kbps data rate under load
Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V
Variations
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Related parts for SP3243EET

SP3243EET Summary of contents

Page 1

... SP3223E +3.0V to +5.5V RS-232 Transceivers 1 SP3223E/3243E © Copyright 2000 Sipex Corporation ...

Page 2

... ° © Copyright 2000 Sipex Corporation ...

Page 3

... © Copyright 2000 Sipex Corporation ...

Page 4

... +3.3V, 235Kbps data rate, all drivers CC +Slew -Slew 500 1000 1500 Load Capacitance [pF] © Copyright 2000 Sipex Corporation 2000 ...

Page 5

... Slew - Slew 500 2500 3000 Figure 6. Supply Current VS. Load Capacitance when Transmitting Data for the SP3243E SP3223E +3.0V to +5.5V RS-232 Transceivers 5 Vout+ Vout- 1000 1500 2000 2500 Load Capacitance [pF] 1000 1500 2000 2500 3000 Load Capacitance [pF] © Copyright 2000 Sipex Corporation ...

Page 6

... © Copyright 2000 Sipex Corporation 3 E ...

Page 7

... SP3223E +3.0V to +5.5V RS-232 Transceivers 7 SHUTDOWN V CC GND T OUT OUT 1 ONLINE STATUS C1 GND C1- ONLINE STATUS R OUT 2 R OUT 1 R OUT 2 R OUT 3 R OUT 4 R OUT 5 © Copyright 2000 Sipex Corporation ...

Page 8

... V CC C1+ C1- SP3223E C2+ C2- T OUT OUT OUT OUT SHUTDOWN ONLINE STATUS GND 18 SP3223E +3.0V to +5.5V RS-232 Transceivers 0 0 RS-232 OUTPUTS RS-232 INPUTS © Copyright 2000 Sipex Corporation ...

Page 9

... OUT OUT OUT OUT OUT SHUTDOWN ONLINE STATUS GND 25 SP3223E +3.0V to +5.5V RS-232 Transceivers 0 0 RS-232 OUTPUTS RS-232 INPUTS © Copyright 2000 Sipex Corporation ...

Page 10

... The slew rate of the driver output is internally limited to a maximum of 30V order to meet the EIA standards (EIA RS-232D 2.1.7, Paragraph 5). The transition of the loaded output from HIGH to LOW also meets the monotonicity requirements of the standard. SP3223E +3.0V to +5.5V RS-232 Transceivers 10 1. Drivers, in © Copyright 2000 Sipex Corporation ...

Page 11

... C4 0 C2- T OUT OUT OUT OUT 1000pF 1000pF SHUTDOWN 14 ONLINE 11 STATUS GND 18 5.0V EIA/TIA-232 [ Ch2 5.00V M 2.50 s Ch1 Ch1 5.00V 0V Ch3 5.00V © Copyright 2000 Sipex Corporation ...

Page 12

... Since C is connected the This generated voltage is is switched 1 produces –V in the negative Since the times GND, 2 storage capacitor. This DD , the 4 is switched © Copyright 2000 Sipex Corporation 2 ...

Page 13

... The clock rate for the charge pump typically + – and V will operates at 250kHz. The external capacitors can be as low as 0.1 F with a 16V breakdown voltage rating. + due to the STSL t STSH t ONLINE SP3223E +3.0V to +5.5V RS-232 Transceivers 13 © Copyright 2000 Sipex Corporation ...

Page 14

... M 1.00 s Ch1 1.96V = + – V Storage Capacitor – + – V Storage Capacitor SS C – +10V 4 + – Storage Capacitor – + – V Storage Capacitor SP3223E +3.0V to +5.5V RS-232 Transceivers 14 Storage Capacitor Storage Capacitor + -6V © Copyright 2000 Sipex Corporation ...

Page 15

... OUT OUT OUT GND 25 6. DCE Ready 7. Request to Send 8. Clear to Send 9. Ring Indicator SP3223E +3.0V to +5.5V RS-232 Transceivers 15 DB-9 Connector © Copyright 2000 Sipex Corporation ...

Page 16

... INACT R X OUT Delay Stage STATUS R INACT 5 © Copyright 2000 Sipex Corporation n n ...

Page 17

... V+ and V- levels is typically 200 s. For easy programming, the STATUS can be used to indicate DTR or a Ring Indicator signal. Tying ONLINE and SHUTDOWN together will bypass the Auto-Online circuitry so this connection acts like a shutdown input pin. SP3223E +3.0V to +5.5V RS-232 Transceivers 17 , the CC © Copyright 2000 Sipex Corporation ...

Page 18

... PCB and finally to the IC SW2 SW1 SW2 SW2 SW1 SW1 SP3223E +3.0V to +5.5V RS-232 Transceivers 18 Device Under Test © Copyright 2000 Sipex Corporation ...

Page 19

... Figure 27. ESD Test Waveform for IEC1000-4-2 value in the S Air Discharge 15kV 15kV SP3223E +3.0V to +5.5V RS-232 Transceivers SW2 SW2 SW2 Device Under Test for IEC1000-4-2. f for IEC1000-4-2. or IEC1000-4-2. t=30ns t IEC1000-4-2 Direct Contact Level 8kV 4 8kV 4 © Copyright 2000 Sipex Corporation ...

Page 20

... SP3223E +3.0V to +5.5V RS-232 Transceivers 20 C Ø 0.300 BSC A (7.620 BSC) 28–PIN 0.068/0.078 (1.73/1.99) 0.002/0.008 (0.05/0.21) 0.010/0.015 (0.25/0.38) 0.397/0.407 (10.07/10.33) 0.205/0.212 (5.20/5.38) 0.0256 BSC (0.65 BSC) 0.301/0.311 (7.65/7.90) 0.022/0.037 (0.55/0.95) 0°/8° (0°/8°) © Copyright 2000 Sipex Corporation ...

Page 21

... SP3223E +3.0V to +5.5V RS-232 Transceivers 21 SMALL OUTLINE (SSOP) Ø L 28–PIN 0.068/0.078 (1.73/1.99) 0.002/0.008 (0.05/0.21) 0.010/0.015 (0.25/0.38) 0.397/0.407 (10.07/10.33) 0.205/0.212 (5.20/5.38) 0.0256 BSC (0.65 BSC) 0.301/0.311 (7.65/7.90) 0.022/0.037 (0.55/0.95) 0°/8° (0°/8°) © Copyright 2000 Sipex Corporation ...

Page 22

... A1 (0.102/0.300) 0.013/0.020 B (0.330/0.508) 0.697/0.713 D (17.70/18.09) 0.291/0.299 E (7.402/7.600) 0.050 BSC e (1.270 BSC) 0.394/0.419 H (10.00/10.64) 0.016/0.050 L (0.406/1.270) 0°/8° Ø (0°/8°) SP3223E +3.0V to +5.5V RS-232 Transceivers 22 SMALL OUTLINE (SOIC) (WIDE) Ø L © Copyright 2000 Sipex Corporation ...

Page 23

... PACKAGE: PLASTIC THIN SMALL OUTLINE (TSSOP DIMENSIONS in inches (mm) 20–PIN Minimum/Maximum - /0.043 A (- /1.10) 0.002/0.006 A1 (0.05/0.15) B 0.007/0.012 (0.19/0.30) D 0.252/0.260 (6.40/6.60) E 0.169/0.177 (4.30/4.50) 0.026 BSC e (0.65 BSC) 0.126 BSC E2 (3.20 BSC) L 0.020/0.030 (0.50/0.75) Ø SP3223E +3.0V to +5.5V RS-232 Transceivers 23 Ø L © Copyright 2000 Sipex Corporation ...

Page 24

... ORDERING INFORMATION Model SP3223ECP SP3223ECA SP3223ECY SP3223EEP SP3223EEA SP3223EEY SP3243ECT SP3243ECA SP3243EET SP3243EEA Please consult the factory for pricing and availability on a Tape-On-Reel option. Corporation SIGNAL PROCESSING EXCELLENCE Sipex Corporation Headquarters and Sales Office 22 Linnell Circle Billerica, MA 01821 TEL: (978) 667-8700 FAX: (978) 670-9001 e-mail: sales@sipex ...

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