Features
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No Direction-Control
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Max Data Rates
24Mbps (Push-Pull)
2Mbps (Open-Drain)
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1.2V to 3.63V on A ports and 1.2V to 3.63V on B Ports
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VCCA can be Less than, Greater than or Equal to VCCB
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VCC Isolation: If Either VCC is at GND, Both Ports are in the High-Impedance State
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No Power-Supply Sequencing Required: VCCA or VCCB can be Ramped First
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ESD protection exceeds 6000V HBM，1000V CDM
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Extended Temperature: -40°C to +85°C
Applications
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I2C/SMBus
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SPI Interface
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UART
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Handheld Devices Interface
Description
The GS7LS104 is a 4-bit configurable dual supply bidirectional auto sensing translator that does not require a directional control pin. The A and B ports are designed to track two different power supply rails, VCCA and VCCB respectively.
A port supporting operating voltages from 1.2V to 3.63V while it tracks the VCCA supply, and the B ports supporting operating voltages from 1.2V to 3.63V while it tracks the VCCB supply. This allows the support of both lower and higher logic signal levels while providing bidirectional translation capabilities between any of the 1.2V,1.8V, 2.5V, 3.3V and 3.63V voltage nodes.
When the output-enable (EN) input is low, all outputs are placed in the high-impedance state. To ensure the high-impedance state during power up or power down, EN should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.