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TRSF3222E PDF预览

TRSF3222E

更新时间： 2024-11-01 12:16:19
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
19页 652K
描述
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION

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TRSF3222E 数据手册

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TRSF3222E  
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER  
WITH ±15-kV ESD PROTECTION  
www.ti.com  
SLLS823–JULY 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 IEC 61000-4-2, Contact Discharge  
±15-kV IEC 61000-4-2, Air-Gap Discharge  
19  
18  
17  
16  
15  
14  
13  
12  
11  
V
CC  
V+  
C1−  
C2+  
C2−  
GND  
DOUT1  
RIN1  
ROUT1  
NC  
•
Meets or Exceeds the Requirements of  
TIA/EIA-232-F and ITU v.28 Standards  
•
•
•
•
•
•
Operates With 3-V to 5.5-V VCC Supply  
Operates up to 1000 kbit/s  
V−  
DOUT2  
RIN2  
ROUT2  
DIN1  
DIN2  
NC  
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  
NC − No internal connection  
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+  
NC  
V+  
C1–  
C2+  
C2–  
V–  
V
CC  
3
NC  
DESCRIPTION/  
ORDERING INFORMATION  
4
GND  
DOUT1  
RIN1  
ROUT1  
NC  
DIN1  
NC  
DIN2  
5
The TRSF3222E 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).  
6
7
8
9
DOUT2  
NC  
RIN2  
The TRSF3222E 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 TRSF3222E  
operates at typical data signaling rates up to  
1000 kbit/s and is an improved drop-in replacement  
for industry-popular '3222 two-driver, two-receiver  
functions.  
10  
11  
12  
13  
NC − No internal connection  
The TRSF3222E 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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2007, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...19

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TRSF3222E 替代型号

型号 品牌 替代类型 描述 数据表
SN65C3222E TI

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