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SN65C23243DLG4 Datasheet(PDF) 1 Page - Texas Instruments

Part # SN65C23243DLG4
Description  3-V TO 5.5-V DUAL RS-232 PORT
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

SN65C23243DLG4 Datasheet(HTML) 1 Page - Texas Instruments

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SN65C23243, SN75C23243
3V TO 5.5V DUAL RS232 PORT
SLLS513A − AUGUST 2001 − REVISED MARCH 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Single-Chip and Single-Supply Interface for
Two IBM
 PC/AT Serial Ports
D Meet or Exceed the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
D Operate With 3-V to 5.5-V VCC Supply
D Always-Active Noninverting Receiver
Output (ROUT2) Per Port
D Operate Up To 250 kbit/s
D Low Standby Current...1 µA Typical
D External Capacitors ...4 × 0.22 µF
D Accept 5-V Logic Input With 3.3-V Supply
D Allow for Flexible Power Down of Either
Serial Port
D Serial-Mouse Driveability
D RS-232 Bus-Pin ESD Protection Exceeds
±15 kV Using Human-Body Model (HBM)
D Applications
− Battery-Powered Systems, Notebooks,
Laptops, Palmtop PCs, and Hand-Held
Equipment
description/ordering information
The SN65C23243 and SN75C23243 consist of
two ports, each containing three line drivers and
five line receivers, and a dual charge-pump circuit
with
±15-kV ESD protection pin to pin (serial-port
connection pins, including GND). These devices meet the requirements of TIA/EIA-232-F and provide the
electrical interface between an asynchronous communication controller and the serial-port connector. This
combination of drivers and receivers matches that needed for two typical serial ports used in an IBM PC/AT, or
compatible. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V
supply. In addition, these devices include an always-active noninverting output (ROUT2) per port, which allows
applications using the ring indicator to transmit data while the devices are powered down. The devices operate
at data signaling rates up to 250 kbit/s and a maximum of 30-V/
µs driver output slew-rate.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SSOP (DL)
Tube of 25
SN75C23243DL
75C23243
−0
°C to 70°C
SSOP (DL)
Reel of 1000
SN75C23243DLR
75C23243
−0 C to 70 C
TSSOP (DGG)
Reel of 2000
SN75C23243DGGR
75C23243
SSOP (DL)
Tube of 25
SN65C23243DL
65C23243
−40
°C to 85°C
SSOP (DL)
Reel of 1000
SN65C23243DLR
65C23243
−40 C to 85 C
TSSOP (DGG)
Reel of 2000
SN65C23243DGGR
65C23243
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
 2004, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
DGG OR DL PACKAGE
(TOP VIEW)
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RIN5A
RIN4A
RIN3A
RIN2A
RIN1A
INVA
DOUT3A
DOUT2A
DOUT1A
FORCEOFFA
C2−
C2+
GND
VCC
FORCEOFFB
DOUT1B
DOUT2B
DOUT3B
INVB
RIN1B
RIN2B
RIN3B
RIN4B
RIN5B
ROUT5A
ROUT4A
ROUT3A
ROUT2A
ROUT1A
ROUT2A
DIN3A
DIN2A
DIN1A
FORCEON
V−
V+
C1+
C1−
GND
DIN1B
DIN2B
DIN3B
ROUT2B
ROUT1B
ROUT2B
ROUT3B
ROUT4B
ROUT5B
IBM is a trademark of International Business Machines Corporation.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.


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