TXS4555RGTR - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

TXS4555RGTR
Manufacturer

TI
ChipWorker Part#

CW45452118
Category

Logic Controller, Logic IC
Package

VQFN-16
Description

SIM Card Power Supply with Level Translator 16-QFN -40℃ to 85℃
Documentation

Datasheet

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TXS4555RGTR Specifications

Attribute	Attribute Value

Part Number	TXS4555RGTR
Manufacturer	TI
ChipWorker Part#	CW45452118
Category	Logic Controller, Logic IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	VQFN-16
Supply Voltage (DC)	1.65V ~ 3.30V
Number of Outputs	3 Output
Number of Circuits	1 Circuit
Number of Channels	1 Channel
Number of Bits	1 Bit
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Number of Output Channels	1 Channel
Supply Voltage (Max)	3.3 V
Supply Voltage (Min)	1.65 V
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Operating Temperature	-40℃ ~ 85℃ (TA)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

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 VBATT from 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.

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