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SN65C3238E_07

更新时间： 2024-11-25 04:51:19
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德州仪器 - TI 驱动器接收机
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17页 385K
描述
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVERS/RECEIVERS WITH 【15-kV ESD (HBM) PROTECTION

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SN65C3238E, SN75C3238E  
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVERS/RECEIVERS  
WITH ±15-kV ESD (HBM) PROTECTION  
www.ti.com  
SLLS726–MAY 2006  
FEATURES  
DB, DW, OR PW PACKAGE  
•
RS-232 Bus-Pin ESD Protection Exceeds  
(TOP VIEW)  
±15 kV Using Human-Body Model (HBM)  
C2+  
GND  
C2−  
C1+  
27 V+  
26  
1
28  
•
Meet or Exceed the Requirements of  
TIA/EIA-232-F and ITU v.28 Standards  
2
3
V
CC  
•
•
•
•
Operate With 3-V to 5.5-V VCC Supply  
Operate up to 1000 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  
DOUT4  
RIN3  
•
•
•
•
Low Standby Current . . . 1 µA Typical  
External Capacitors . . . 4 × 0.1 µF  
10  
11  
12  
13  
14  
ROUT3  
DIN5  
Accept 5-V Logic Input With 3.3-V Supply  
DOUT5  
FORCEON  
FORCEOFF  
Always-Active Noninverting Receiver Output  
(ROUT1B)  
ROUT1B  
INVALID  
•
ESD Protection for RS-232 Interface Pins  
– ±15 kV – Human-Body Model (HBM)  
– ±8 kV – IEC61000-4-2, Contact Discharge  
– ±15 kV – IEC61000-4-2, Air-Gap Discharge  
RHB PACKAGE  
(TOP VIEW)  
APPLICATIONS  
•
•
•
•
•
•
•
•
•
Battery-Powered Systems  
PDAs  
Notebooks  
Subnotebooks  
Laptops  
Palmtop PCs  
Hand-Held Equipment  
Modems  
32 31 30 29 28 27 26 25  
1
2
3
4
5
6
7
8
24  
DOUT1  
DOUT2  
DOUT3  
RIN1  
RIN2  
DOUT4  
RIN3  
C1–  
DIN1  
DIN2  
DIN3  
ROUT1  
ROUT2  
DIN4  
23  
22  
21  
20  
19  
18  
17  
Printers  
NC  
ROUT3  
9 10 11 12 13 14 15 16  
DESCRIPTION/ORDERING INFORMATION  
The SN65C3238E and SN75C3238E consist 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  
devices meet the requirements of TIA/EIA-232-F and provide 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 devices include an always-active noninverting output (ROUT1B),  
which allows applications using the ring indicator to transmit data while the device is powered down. These  
devices operate at data signaling rates up to 1000 kbit/s.  
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.  
PRODUCT PREVIEW information concerns products in the  
Copyright © 2006, Texas Instruments Incorporated  
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.  
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