Texas Instruments

The TXS02326A 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 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 with 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; and a 32-kHz clock input, for internal timing generation. The TXS02326A also includes a shutdown input and a comparator input that detects battery pack removal to safely power-down the two SIM cards. The shutdown input and comparator input are equipped with two programmable debounce counter (i.e. BSI input and SDN input) circuits realized by an 8 bit counter. 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. The TXS02326A 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 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 with 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; and a 32-kHz clock input, for internal timing generation. The TXS02326A also includes a shutdown input and a comparator input that detects battery pack removal to safely power-down the two SIM cards. The shutdown input and comparator input are equipped with two programmable debounce counter (i.e. BSI input and SDN input) circuits realized by an 8 bit counter. 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.

The TXS02612 is designed to interface the cell phone baseband with external SDIO peripherals. The device includes a 6-channel SPDT switch with voltage-level translation capability. This allows a single SDIO port to be interfaced with two SDIO peripherals. The TXS02612 has three separate supply rails that operate over the full range of 1.1 V to 3.6 V. This allows the baseband and SDIO peripherals to operate at different supply voltages if required. The select (SEL) input is used to choose between the B0 port and B1 port. When SEL = Low, B0 port is selected; when SEL = High, B1 port is selected. SEL is referenced to VCCA. For the unselected B port, the clock output is held low, whereas the data and command I/Os are pulled high to their respective VCCBthrough a 70-kresistor (±30% tolerance). The TXS02612 is designed to interface the cell phone baseband with external SDIO peripherals. The device includes a 6-channel SPDT switch with voltage-level translation capability. This allows a single SDIO port to be interfaced with two SDIO peripherals. The TXS02612 has three separate supply rails that operate over the full range of 1.1 V to 3.6 V. This allows the baseband and SDIO peripherals to operate at different supply voltages if required. The select (SEL) input is used to choose between the B0 port and B1 port. When SEL = Low, B0 port is selected; when SEL = High, B1 port is selected. SEL is referenced to VCCA. For the unselected B port, the clock output is held low, whereas the data and command I/Os are pulled high to their respective VCCBthrough a 70-kresistor (±30% tolerance).

The TXS03121 is a comparator designed for battery monitoring applications. It can be operated with a voltage of 2.5 V to 5.5 V. The reference voltage is applied to the –IN terminal, whereas the voltage to be monitored is connected to +IN. When the voltage at +IN is greater than the voltage at –IN, the output FET is turned On. When the voltage at +IN is less than the voltage at –IN, the output FET is turned Off. The source (S) of the output FET can be connected to 1.1 V to 3.6 V, which allows the output signal to be level translated to another voltage value. The voltage at V+must be greater than or equal to the voltage at S. The voltage at S must be greater than or equal to the voltage at D (V+≥ VS≥ VD). The TXS03121 is a comparator designed for battery monitoring applications. It can be operated with a voltage of 2.5 V to 5.5 V. The reference voltage is applied to the –IN terminal, whereas the voltage to be monitored is connected to +IN. When the voltage at +IN is greater than the voltage at –IN, the output FET is turned On. When the voltage at +IN is less than the voltage at –IN, the output FET is turned Off. The source (S) of the output FET can be connected to 1.1 V to 3.6 V, which allows the output signal to be level translated to another voltage value. The voltage at V+must be greater than or equal to the voltage at S. The voltage at S must be greater than or equal to the voltage at D (V+≥ VS≥ VD).

The TXS4555 is a complete Smart Identity Module (SIM) card solution for interfacing wireless baseband processors with a SIM card to store I/O for mobile handset applications. 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, a low-dropout (LDO) voltage regulator that has output voltages that are selectable between 2.95-V Class-B and 1.8-V Class-C interfaces. Note: The Exposed center thermal pad must be connected to Ground The device has two supply voltage pins. VCC can be operated over the full range of 1.65 V to 3.3 V and VBATTfrom 2.3 to 5.5 V. VPWR is set to either 1.8 V or 2.95 V and is supplied by an internal LDO. The integrated LDO accepts input voltages as high as 5.5 V and outputs either 1.8 V or 2.95 V at 50 mA to the B-side circuitry and to the external SIM card. The TXS4555 enables system designers to easily interface low-voltage microprocessors to SIM cards operating at 1.8 V or 2.95 V. The TXS4555 also incorporates shutdown sequence for the SIM card pins based on the ISO 7816-3 specification for SIM cards. Proper shutdown of the SIM card signals helps in prevention of corruption of data during accidental shutdown of the phone. The device also has 8kV HBM protection for the SIM pins and standard 2kV HBM protection for all the other pins. The TXS4555 is a complete Smart Identity Module (SIM) card solution for interfacing wireless baseband processors with a SIM card to store I/O for mobile handset applications. 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, a low-dropout (LDO) voltage regulator that has output voltages that are selectable between 2.95-V Class-B and 1.8-V Class-C interfaces. Note: The Exposed center thermal pad must be connected to Ground The device has two supply voltage pins. VCC can be operated over the full range of 1.65 V to 3.3 V and VBATTfrom 2.3 to 5.5 V. VPWR is set to either 1.8 V or 2.95 V and is supplied by an internal LDO. The integrated LDO accepts input voltages as high as 5.5 V and outputs either 1.8 V or 2.95 V at 50 mA to the B-side circuitry and to the external SIM card. The TXS4555 enables system designers to easily interface low-voltage microprocessors to SIM cards operating at 1.8 V or 2.95 V. The TXS4555 also incorporates shutdown sequence for the SIM card pins based on the ISO 7816-3 specification for SIM cards. Proper shutdown of the SIM card signals helps in prevention of corruption of data during accidental shutdown of the phone. The device also has 8kV HBM protection for the SIM pins and standard 2kV HBM protection for all the other pins.

TXU0101 is a 1-bit, dual-supply noninverting fixed direction voltage level translation device. A pin is referenced to VCCA logic level, OE pin can be referenced to either VCCA or VCCB logic levels, and B pin is referenced to VCCB logic level. The A port is able to accept input voltages ranging from 1.1V to 5.5V, while the B port can also accept input voltages from 1.1V to 5.5V. Fixed direction data transmission can occur from A to B when OE is set to high in reference to either supply. When OE is set to low, all output pins are in the high-impedance state. See Device Functional Modes for a summary of the operation of the control logic. TXU0101 is a 1-bit, dual-supply noninverting fixed direction voltage level translation device. A pin is referenced to VCCA logic level, OE pin can be referenced to either VCCA or VCCB logic levels, and B pin is referenced to VCCB logic level. The A port is able to accept input voltages ranging from 1.1V to 5.5V, while the B port can also accept input voltages from 1.1V to 5.5V. Fixed direction data transmission can occur from A to B when OE is set to high in reference to either supply. When OE is set to low, all output pins are in the high-impedance state. See Device Functional Modes for a summary of the operation of the control logic.

TXU0101-Q1 is a 1-bit, dual-supply noninverting fixed direction voltage level translation device. The A pin is referenced to VCCAlogic level, the OE pin can be referenced to either VCCAor VCCBlogic levels, and the B pin is referenced to VCCBlogic level. The A port can accept input voltages ranging from 1.1 V to 5.5 V, while the B port can also accept input voltages from 1.1 V to 5.5 V. Fixed direction data transmission can occur from A to B when OE is set to high in reference to either supply. When OE is set to low, all output pins are in the high-impedance state. SeeDevice Functional Modesfor a summary of the operation of the control logic. . TXU0101-Q1 is a 1-bit, dual-supply noninverting fixed direction voltage level translation device. The A pin is referenced to VCCAlogic level, the OE pin can be referenced to either VCCAor VCCBlogic levels, and the B pin is referenced to VCCBlogic level. The A port can accept input voltages ranging from 1.1 V to 5.5 V, while the B port can also accept input voltages from 1.1 V to 5.5 V. Fixed direction data transmission can occur from A to B when OE is set to high in reference to either supply. When OE is set to low, all output pins are in the high-impedance state. SeeDevice Functional Modesfor a summary of the operation of the control logic. .

TXU0102 is a 2-bit, dual-supply noninverting fixed direction voltage level translation device. Ax pins are referenced to VCCAlogic level, OE pin can be referenced to either VCCAor VCCBlogic levels, and Bx pins are referenced to VCCBlogic levels. The A port is able to accept input voltages ranging from 1.1 V to 5.5 V, while the B port can also accept input voltages from 1.1 V to 5.5 V. Fixed direction data transmission can occur from A to B or B to A when OE is set to high in reference to either supply. When OE is set to low, all output pins are in the high-impedance state. SeeDevice Functional Modesfor a summary of the operation of the control logic. TXU0102 is a 2-bit, dual-supply noninverting fixed direction voltage level translation device. Ax pins are referenced to VCCAlogic level, OE pin can be referenced to either VCCAor VCCBlogic levels, and Bx pins are referenced to VCCBlogic levels. The A port is able to accept input voltages ranging from 1.1 V to 5.5 V, while the B port can also accept input voltages from 1.1 V to 5.5 V. Fixed direction data transmission can occur from A to B or B to A when OE is set to high in reference to either supply. When OE is set to low, all output pins are in the high-impedance state. SeeDevice Functional Modesfor a summary of the operation of the control logic.