TXS4558 Description
The TXS4558 is a plete 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 SIM’s/UICC’s. The device plies with ISO/IEC Smart-Card Interface requirements as well as GSM and 3G...
TXS4558 Key Features
- Level Translator
- VCC Range of 1.65 V to 3.3 V
- VBATT Range of 2.3V to 5.5V
- Low-Dropout (LDO) Regulator
- 50-mA LDO Regulator With Enable
- 1.8-V or 2.95-V Selectable Output Voltage
- Very Low Dropout: 100 mV (Max) at 50 mA
- Control and munication Through GPIO Interface with Baseband Processor
- Isolated Clock Stop Mode for both SIM1 and SIM2 cards
- ESD Protection Exceeds JESD 22