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MAX3243CPWR

更新时间： 2024-09-15 23:46:07
品牌 Logo 应用领域
美信 - MAXIM 驱动器接口集成电路光电二极管PC
页数 文件大小 规格书
11页 166K
描述
Transceiver

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MAX3243CPWR 数据手册

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MAX3243  
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER  
WITH ±15-kV ESD (HBM) PROTECTION  
SLLS350E – APRIL 1999 – REVISED OCTOBER 2000  
DB, DW, OR PW PACKAGE  
Single-Chip and Single-Supply Interface for  
IBM PC/AT Serial Port  
(TOP VIEW)  
Meets or Exceeds the Requirements of  
TIA/EIA-232-F and ITU v.28 Standards  
C2+  
C2–  
C1+  
V+  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
2
Operates With 3-V to 5.5-V V  
Supply  
CC  
V–  
V
3
CC  
Always-Active Noninverting Receiver  
Output (ROUT2B)  
RIN1  
GND  
4
RIN2  
C1–  
5
RIN3  
FORCEON  
FORCEOFF  
INVALID  
ROUT2B  
ROUT1  
ROUT2  
6
Operates up to 250 kbit/s  
RIN4  
7
Designed to Transmit at a Data Rate of  
250 kbit/s  
RIN5  
8
DOUT1  
DOUT2  
DOUT3  
9
Low Standby Current . . . 1 µA Typical  
External Capacitors . . . 4 × 0.1 µF  
10  
11  
Accepts 5-V Logic Input With 3.3-V Supply  
DIN3 12  
DIN2 13  
DIN1 14  
17 ROUT3  
16 ROUT4  
15 ROUT5  
Designed to Be Interchangeable With  
Maxim MAX3243  
Serial-Mouse Driveability  
RS-232 Bus-Pin ESD Protection Exceeds  
±15-kV Using Human-Body Model (HBM)  
Auto-Powerdown Feature to Disable Driver  
Outputs When No Valid RS-232 Signal Is  
Sensed  
Applications  
– Battery-Powered Systems, PDAs,  
Notebooks, Laptops, Palmtop PCs, and  
Hand-Held Equipment  
Package Options Include Plastic  
Small-Outline (DW), Shrink Small-Outline  
(DB), and Thin Shrink Small-Outline (PW)  
Packages  
description  
The MAX3243 device consists of three line drivers, five line receivers, and a dual charge-pump circuit with  
±15-kV ESD (HBM) protection pin to pin (serial-port connection pins, including GND). The device meets the  
requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication  
controller and the serial-port connector. This combination of drivers and receivers matches that needed for the  
typical serial port 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, the device includes an always-active noninverting  
output (ROUT2B), which allows applications using the ring indicator to transmit data while the device is powered  
down. The device operates at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew  
rate.  
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.  
AT, IBM, and PC are trademarks of International Business Machines Corporation.  
Copyright 2000, Texas Instruments Incorporated  
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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...11

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