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TRS3227E PDF预览

TRS3227E

更新时间： 2024-11-19 11:50:19
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
15页 340K
描述
3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV IEC ESD PROTECTION

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TRS3227E 数据手册

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TRS3227E  
3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER  
WITH ±15-kV IEC ESD PROTECTION  
www.ti.com  
SLLS795–JUNE 2007  
FEATURES  
APPLICATIONS  
•
Battery-Powered, Hand-Held, and Portable  
Equipment  
•
Meets or Exceeds the Requirements of  
TIA/EIA-232-F and ITU v.28 Standards  
•
•
•
•
PDAs and Palmtop PCs  
Notebooks, Sub-Notebooks, and Laptops  
Digital Cameras  
•
•
•
•
•
•
Operates With 3-V to 5.5-V VCC Supply  
Operates at Least 1 Mbit/s  
Low Standby Current . . . 1 μA Typ  
External Capacitors . . . 4 × 0.1 μF  
Accepts 5-V Logic Input With 3.3-V Supply  
Mobile Phones and Wireless Devices  
DB PACKAGE  
(TOP VIEW)  
Designed to Be Interchangeable With Industry  
Standard '3227E Devices  
READY  
C1+  
V+  
FORCEOFF  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
•
•
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
V
CC  
GND  
ESD Protection for RS-232 I/O Pins  
C1−  
C2+  
C2−  
V−  
DOUT  
FORCEON  
DIN  
–
–
–
±15 kV – Human-Body Model  
±8 kV – IEC61000-4-2, Contact Discharge  
±15 kV – IEC61000-4-2, Air-Gap Discharge  
INVALID  
ROUT  
RIN  
•
•
Auto-Powerdown Plus Feature Automatically  
Disables Drivers for Power Savings  
Packaged in Plastic Shrink Small-Outline  
Package  
DESCRIPTION/ORDERING INFORMATION  
The TRS3227E consists of one line driver, one line receiver, and a dual charge-pump circuit with ±15-kV IEC  
ESD protection pin to pin (serial-port connection pins, including GND). 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. This device operates at data-signaling rates of 1 Mbit/s in normal operating mode and a maximum  
of 30-V/μs driver output slew rate. This device also features a logic-level output (READY) that asserts when the  
charge pump is regulating and the device is ready to begin transmitting.  
The TRS3227E achieves a 1-μA supply current using the auto-powerdown plus feature. This device  
automatically enters a low-power powerdown mode when the RS-232 cable is disconnected or the drivers of the  
connected peripherals are inactive for more than 30 s. They turn on again when they sense a valid transition at  
any driver or receiver input. Auto-powerdown saves power without changes to the existing BIOS or operating  
system.  
The TRS3227EC is characterized for operation from 0°C to 70°C. The TRS3227EI is characterized for operation  
from –40°C to 85°C.  
ORDERING INFORMATION  
TA  
0°C to 70°C  
–40°C to 85°C  
PACKAGE(1)(2)  
Reel of 2000  
Reel of 2000  
ORDERABLE PART NUMBER  
TRS3227ECDBR  
TOP-SIDE MARKING  
RS27EC  
RS27EI  
SSOP – DB  
SSOP – DB  
TRS3227EIDBR  
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at  
www.ti.com/sc/package.  
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
website at www.ti.com.  
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.  
All trademarks are the property of their respective owners.  
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...15

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TRS3227E 替代型号

型号 品牌 替代类型 描述 数据表
MAX3227E TI

功能相似

 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVE
MAX3227 TI

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 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVE

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TRS3227EIDBG4 TI

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TRS3227EIDBR TI

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TRS3227EIDBRG4 TI

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TRS3227IDB TI

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