Texas Instruments TXS0108E Bidirectional Voltage-Level Shifter
Texas Instruments TXS0108E Bidirectional Voltage-Level Shifter is an 8-bit non-inverting level translator that uses two separate configurable power-supply rails. The A port tracks the VCCA pin supply voltage. The VCCA pin accepts any supply voltage between 1.4V and 3.6V. The B port tracks the VCCB pin supply voltage. The VCCB pin accepts any supply voltage between 1.65V and 5.5V. Two input supply pins on the Texas Instruments TXS0108E allow for low voltage bidirectional translation between any of the 1.5V, 1.8V, 2.5V, 3.3V, and 5V voltage nodes.
When the output-enable (OE) input is low, all outputs are placed in the high-impedance (Hi-Z) state. To ensure the Hi-Z state during power-up or power-down periods, tie OE to GND through a pull-down resistor. The minimum value of the resistor is determined by the current-sourcing capability of the driver.
Features
- No direction-control signal needed
- Maximum data rates
- 110Mbps (push-pull)
- 1.2Mbps (open-drain)
- 1.4V to 3.6V on A port and 1.65V to 5.5V on B port (VCCA ≤ VCCB)
- No power-supply sequencing required – either VCCA or VCCB can be ramped first
- Latch-up performance exceeds 100mA per JESD 78, Class II
- ESD protection exceeds JESD 22 (A Port)
- 2000V human body model (A114-B)
- 150V machine model (A115-A)
- 1000V charged-device model (C101)
- IEC 61000-4-2 ESD (B port)
- ±8kV contact discharge
- ±6kV air-gap discharge
Applications
- Handsets
- Smartphones
- Tablets
- Desktop PCs
Functional Block Diagram
