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TPS9125 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS9125 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 24 page TPS9125 5 V/3 V SIM SUPPLY AND LEVEL SHIFTERS SLVS244A – SEPTEMBER 1999 – REVISED NOVEMBER 1999 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Integrated SIM Supply and Level Shifters D Selectable 5-V or 3-V SIM Supply Voltage D 3-V to 5-V Level Shifters, Bidirectional for SIM Data Line D 10 kV ESD Protection (HBM) on SIMDATA, SIMRST, and SIMCLK Terminal D 14 Terminal TSSOP D Minimum Supply Voltage 2.7 V D Integrated PullUp Resistor for DATA and SIMDATA D Thin Shrink, Small Outline, Left-Hand Tape and Reel Package description The TPS9125 SIM supply and level shifter integrates a programmable 3-V or 5-V SIM supply, conformable to the (GSM) test specification 11.10, together with either a 3-V or 5-V level shifter, conformable to the GSM specification 11.11 and 11.12. A charge pump, utilizing two external capacitors, is configured as voltage doubler to generate a 5-V supply rail from VDD. Dependent on the SIM card used, a control signal coming from the SIM card controller is applied on the MODE terminal to switch between a 3-V or 5-V supply on the SIMVCC output terminal. A 3-V/5-V bidirectional level shifter translates the 3-V compatible logic signal on DATA terminal into a 5-V compatible logic signal SIMDATA terminal, and vice versa. RST and CLK are unidirectional level shifters, providing a 5-V SIMRST and SIMCLK signal from the microcontroller to the SIM card. The SIM supply is operating provided SIMPWR = 1 and VDD is sufficient (> 2.7 V). Under this condition, SIMVCC voltage is generated by the SIM supply charge pump. A RESET terminal is provided for security reasons to switch off the SIM supply and interface if the SIM card is disconnected or removed by accident. The TSP9125 is packaged in TI’s thin shrink small-outline package (PW). AVAILABLE OPTIONS TA PACKAGE TA (PW) –30 °C to 85°C TSP9125PWR† † Suffix R stands for left-handed tape and reel. Copyright © 1999, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. 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. TI is a trademark of Texas Instruments Incorporated. 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VDD RESET MODE SIMPWR DATA CLK RST SIMVCC VCAP1 VCAP2 SIMDATA GND SIMCLK SIMRST PW PACKAGE (TOP VIEW) |
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