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TXS02324

更新时间： 2024-09-16 12:20:07
品牌 Logo 应用领域
德州仪器 - TI 转换器复用器
页数 文件大小 规格书
25页 608K
描述
Dual-Supply 2:1 SIM Card Multiplexer/Translator With Slot Dedicated Dual LDO

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TXS02324 数据手册

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TXS02324  
www.ti.com  
SCES823 –FEBRUARY 2011  
Dual-Supply 2:1 SIM Card Multiplexer/Translator  
With Slot Dedicated Dual LDO  
Check for Samples: TXS02324  
1
FEATURES  
RUK PACKAGE  
(TOP VIEW)  
•
Level Translator  
VDDIO Range of 1.7 V to 3.3 V  
Low-Dropout (LDO) Regulator  
–
•
15 14 13  
12 11  
–
–
–
–
50-mA LDO Regulator With Enable  
16  
17  
18  
19  
20  
10  
RSTX  
DNU  
SIMCLK  
1.8-V or 2.95-V Selectable Output Voltage  
2.3-V to 5.5-V Input Voltage Range  
9
SIMRST  
8
GND  
SIM1CLK  
Very Low Dropout: 100 mV (Max) at 50 mA  
7
SIM2CLK  
SIM2IO  
SIM1IO  
6
SIM1RST  
•
•
Control and Communication Through I2C  
1
2
3
4
5
Interface With Baseband Processor  
ESD Protection Exceeds JESD 22  
–
–
2000-V Human-Body Model (A114-B)  
1000-V Charged-Device Model (C101)  
Note: The Exposed Thermal Pad must be  
connect to Ground.  
•
Package  
20-Pin QFN (3 mm x 3 mm)  
–
DESCRIPTION/ORDERING INFORMATION  
The TXS02324 is a complete dual-supply standby Smart Identity Module (SIM) card solution for interfacing  
wireless baseband processors with two individual SIM subscriber cards to store data for mobile handset  
applications. It is a custom device which is used to extend a single SIM/UICC interface to be able to support two  
SIMs/UICCs.  
The device complies with ISO/IEC Smart-Card Interface requirements as well as GSM and 3G mobile standards.  
It includes a high-speed level translator capable of supporting Class-B (2.95 V) and Class-C (1.8 V) interfaces,  
two low-dropout (LDO) voltage regulators that have output voltages that are selectable between 2.95-V Class-B  
and 1.8-V Class-C interfaces, an integrated "fast-mode" 400 kb/s "slave" I2C control register interface for  
configuration purposes, a 32-kHz clock input for internal timing generation.  
The voltage-level translator has two supply voltage pins. VDDIO sets the reference for the baseband interface  
and can be operated from 1.7 V to 3.3 V. VSIM1 and VSIM2 are programmed to either 1.8 V or 2.95 V, each  
supplied by an independent internal LDO regulator. The integrated LDO accepts input battery voltages from 2.3  
V to 5.5 V and outputs up to 50 mA to the B-side circuitry and external Class-B or Class-C SIM card.  
ORDERING INFORMATION(1)  
TA  
PACKAGE(2)  
ORDERABLE PART NUMBER  
TOP-SIDE MARKING  
ZUY  
–40°C to 85°C  
QFN – RUK  
Tape and reel  
TXS02324RUKR  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.  
1
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.  
© 2011, 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.  
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