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TRS3222EIDWR

更新时间： 2024-10-03 11:51:35
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
17页 422K
描述
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION

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TRS3222EIDWR 数据手册

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TRS3222E  
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER  
WITH ±15-kV ESD PROTECTION  
www.ti.com  
SLLS793–JUNE 2007  
FEATURES  
DB, DW, OR PW PACKAGE  
•
ESD Protection for RS-232 Bus Pins  
(TOP VIEW)  
–
–
–
±15-kV Human-Body Model (HBM)  
EN  
C1+  
1
2
3
4
5
6
7
8
9
10  
20 PWRDOWN  
±8-kV IEC61000-4-2, Contact Discharge  
±15-kV IEC61000-4-2, Air-Gap Discharge  
19  
18  
17  
16  
15  
14  
13  
12  
11  
V
CC  
V+  
C1−  
C2+  
C2−  
GND  
•
Meets or Exceeds the Requirements of  
TIA/EIA-232-F and ITU v.28 Standards  
DOUT1  
RIN1  
ROUT1  
N.C.  
•
•
•
•
•
•
•
Operates With 3-V to 5.5-V VCC Supply  
Operates up to 500 kbit/s  
V−  
DOUT2  
RIN2  
ROUT2  
DIN1  
DIN2  
N.C.  
Two Drivers and Two Receivers  
Low Standby Current . . . 1 μA Typ  
External Capacitors . . . 4 × 0.1 μF  
Accepts 5-V Logic Input With 3.3-V Supply  
N.C. − No internal connection  
Alternative High-Speed Pin-Compatible Device  
(1 Mbit/s) for TRS3222E  
RHL PACKAGE  
(TOP VIEW)  
APPLICATIONS  
•
•
•
•
•
•
Battery-Powered Systems  
PDAs  
Notebooks  
Laptops  
Palmtop PCs  
Hand-Held Equipment  
24  
1
2
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
C1+  
N.C.  
V+  
C1–  
C2+  
V
CC  
3
N.C.  
4
GND  
DOUT1  
RIN1  
ROUT1  
N.C.  
DIN1  
N.C.  
DIN2  
5
DESCRIPTION/ORDERING  
INFORMATION  
6
7
C2–  
V–  
DOUT2  
N.C.  
RIN2  
8
The TRS3222E consists of two line drivers, two line  
receivers, and a dual charge-pump circuit with  
±15-kV ESD protection pin to pin (serial-port  
connection pins, including GND).  
9
10  
11  
12  
13  
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. The charge pump and four  
small external capacitors allow operation from a  
single 3-V to 5.5-V supply. The device operates at  
typical data signaling rates up to 500 kbit/s and a  
maximum of 30-V/μs driver output slew rate.  
N.C. − No internal connection  
The TRS3222E can be placed in the power-down mode by setting the power-down (PWRDOWN) input low,  
which draws only 1 μA from the power supply. When the device is powered down, the receivers remain active  
while the drivers are placed in the high-impedance state. Also, during power down, the onboard charge pump is  
disabled; V+ is lowered to VCC, and V– is raised toward GND. Receiver outputs also can be placed in the  
high-impedance state by setting enable (EN) high.  
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.  
UNLESS OTHERWISE NOTED this document contains  
Copyright © 2007, Texas Instruments Incorporated  
PRODUCTION DATA information 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.  
1234567...17

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