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TRS3238ECDWRG4 PDF预览

TRS3238ECDWRG4

更新时间： 2024-11-11 11:55:31
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德州仪器 - TI 驱动器
页数 文件大小 规格书
20页 463K
描述
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD (HBM) PROTECTION

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TRS3238ECDWRG4 数据手册

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TRS3238E  
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER  
WITH ±15-kV ESD (HBM) PROTECTION  
www.ti.com  
SLLS797–JUNE 2007  
FEATURES  
DB, DW, OR PW PACKAGE  
•
RS-232 Bus-Pin ESD Protection Exceeds  
(TOP VIEW)  
±15 kV Using Human-Body Model (HBM)  
C2+  
GND  
C1+  
27 V+  
26  
1
28  
•
Meets or Exceeds the Requirements of  
TIA/EIA-232-F and ITU v.28 Standards  
2
C2-  
3
V
CC  
•
•
•
•
Operates With 3-V to 5.5-V VCC Supply  
Operates up to 400 kbit/s  
V-  
4
25 C1-  
DOUT1  
DOUT2  
DOUT3  
RIN1  
5
24 DIN1  
Five Drivers and Three Receivers  
6
23  
22  
21  
20  
19  
18  
17  
16  
15  
DIN2  
Auto-Powerdown Plus Feature Enables  
Flexible Power-Down Mode  
7
DIN3  
8
ROUT1  
ROUT2  
DIN4  
9
RIN2  
•
•
•
•
Low Standby Current . . . 1 μA Typical  
External Capacitors . . . 4 × 0.1 μF  
10  
11  
12  
13  
14  
DOUT4  
RIN3  
ROUT3  
DIN5  
Accepts 5-V Logic Input With 3.3-V Supply  
DOUT5  
FORCEON  
FORCEOFF  
Always-Active Noninverting Receiver Output  
(ROUT1B)  
ROUT1B  
INVALID  
•
•
Alternative High-Speed Pin-Compatible Device  
(1 Mbit/s) for TRSF3238  
ESD Protection for RS-232 Interface Pins  
RHB PACKAGE  
(TOP VIEW)  
–
–
–
±15 kV – Human-Body Model (HBM)  
±8 kV – IEC61000-4-2, Contact Discharge  
±15 kV – IEC61000-4-2, Air-Gap Discharge  
APPLICATIONS  
32 31 30 29 28 27 26 25  
•
•
•
•
•
•
•
•
•
Battery-Powered Systems  
PDAs  
Notebooks  
Subnotebooks  
Laptops  
Palmtop PCs  
Hand-Held Equipment  
Modems  
1
2
3
4
5
6
7
8
24  
DOUT1  
DOUT2  
DOUT3  
RIN1  
C1–  
23  
22  
21  
20  
19  
18  
17  
DIN1  
DIN2  
DIN3  
RIN2  
ROUT1  
ROUT2  
DIN4  
DOUT4  
RIN3  
N.C.  
ROUT3  
9 10 11 12 13 14 15 16  
Printers  
N.C. - Not inter nally connected  
DESCRIPTION/ORDERING INFORMATION  
The TRS3238E consists of five line drivers, three line receivers, and a dual charge-pump circuit with ±15-kV  
ESD (HBM) protection on the driver output (DOUT) and receiver input (RIN) terminals. The device meets the  
requirements of TIA/EIA-232-F and provides the electrical interface between notebook and subnotebook  
computer applications. 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 (ROUT1B), which allows  
applications using the ring indicator to transmit data while the device is powered down. This 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.  
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...20

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