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SN65C23243_08

更新时间： 2024-11-21 02:58:43
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德州仪器 - TI /
页数 文件大小 规格书
17页 257K
描述
3-V TO 5.5-V DUAL RS-232 PORT

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SN65C23243_08 数据手册

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SLLS513A − AUGUST 2001 − REVISED MARCH 2004  
DGG OR DL PACKAGE  
(TOP VIEW)  
D
Single-Chip and Single-Supply Interface for  
Two IBMPC/AT Serial Ports  
D
Meet or Exceed the Requirements of  
TIA/EIA-232-F and ITU v.28 Standards  
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48  
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25  
RIN5A  
RIN4A  
RIN3A  
RIN2A  
RIN1A  
INVA  
ROUT5A  
ROUT4A  
ROUT3A  
ROUT2A  
ROUT1A  
ROUT2A  
DIN3A  
DIN2A  
DIN1A  
FORCEON  
V−  
V+  
C1+  
C1−  
GND  
DIN1B  
DIN2B  
DIN3B  
2
D
Operate With 3-V to 5.5-V V  
Supply  
CC  
3
D
Always-Active Noninverting Receiver  
Output (ROUT2) Per Port  
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5
6
D
D
D
D
D
Operate Up To 250 kbit/s  
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DOUT3A  
DOUT2A  
DOUT1A  
FORCEOFFA  
C2−  
Low Standby Current . . . 1 µA Typical  
External Capacitors . . . 4 × 0.22 µF  
Accept 5-V Logic Input With 3.3-V Supply  
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22  
23  
24  
Allow for Flexible Power Down of Either  
Serial Port  
C2+  
GND  
D
Serial-Mouse Driveability  
V
CC  
D
RS-232 Bus-Pin ESD Protection Exceeds  
15 kV Using Human-Body Model (HBM)  
FORCEOFFB  
DOUT1B  
DOUT2B  
DOUT3B  
INVB  
D
Applications  
− Battery-Powered Systems, Notebooks,  
Laptops, Palmtop PCs, and Hand-Held  
Equipment  
ROUT2B  
ROUT1B  
ROUT2B  
ROUT3B  
ROUT4B  
ROUT5B  
RIN1B  
RIN2B  
RIN3B  
RIN4B  
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  
RIN5B  
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  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
†
T
A
PACKAGE  
Tube of 25  
SN75C23243DL  
SSOP (DL)  
75C23243  
Reel of 1000  
Reel of 2000  
Tube of 25  
SN75C23243DLR  
SN75C23243DGGR  
SN65C23243DL  
−0°C to 70°C  
−40°C to 85°C  
TSSOP (DGG)  
75C23243  
SSOP (DL)  
65C23243  
65C23243  
Reel of 1000  
Reel of 2000  
SN65C23243DLR  
SN65C23243DGGR  
TSSOP (DGG)  
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are  
available at www.ti.com/sc/package.  
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.  
IBM is a trademark of International Business Machines Corporation.  
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Copyright 2004, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...17

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