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參數(shù)資料
| 型號： | MAXT3243 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Single Supply RS232C Line Driver/Receiver(?????μ?o?RS232C ?o?????????¨???2???2??????) |
| 中文描述： | 單電源RS232C接口線路驅(qū)動器/接收器（單電源RS232C接口線收發(fā)器（2發(fā)2收）） |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 159K |
| 代理商： | MAXT3243 |
MAXT3243
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS353 – JUNE 1999
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Single-Chip and Single-Supply Interface for
IBM
PC/AT
Serial Port
Meet or Exceed the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
Operate With 3-V to 5.5-V V
CC
Supply
Always-Active Noninverting Receiver
Output (ROUT2B)
Designed to Operate up to 1 Mbit/s
Low Standby Current . . . 1
μ
A Typical
External Capacitors . . . 4
×
0.1
μ
F
Accept 5-V Logic Input With 3.3-V Supply
Designed to be Interchangeable With
Maxim MAX3243C and MAX3243E
Serial-Mouse Driveability
RS-232 Bus-Pin ESD Protection Exceeds
±
15-kV Using Human-Body Model (HBM)
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 MAXT3243 devices
consist of three line drivers, 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 provide the
electrical interface between an asynchronous communication controller and the serial-port connector, and meet
the requirements of TIA/EIA-232-F. 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, these devices include an always-active
noninverting output (ROUT2B) that allows applications using the ring indicator to transmit data while the devices
are powered down. The devices operate at data signaling rates up to 1 Mbit/s, with an increased slew-rate range
of 24 V/
μ
s to 150 V/
μ
s.
P
Copyright
1999, Texas Instruments Incorporated
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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.
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C2+
C2–
V–
RIN1
RIN2
RIN3
RIN4
RIN5
DOUT1
DOUT2
DOUT3
DIN3
DIN2
DIN1
C1+
V+
V
CC
GND
C1–
FORCEON
FORCEOFF
INVALID
ROUT2B
ROUT1
ROUT2
ROUT3
ROUT4
ROUT5
DB, DW, OR PW PACKAGE
(TOP VIEW)
AT, IBM, and PC are trademarks of International Business Machines Corporation.
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