1 Features

• Fully configurable dual-rail design allows each port

to operate from 1.1 V to 5.5 V

• Up to 200 Mbps support for 3.3 V to 5.0 V

• Schmitt-trigger inputs allows for slow and noisy

inputs

• Inputs with integrated static pull-down resistors

prevent channels from floating

• High drive strength (up to 12 mA at 5 V)

• Low power consumption

– x μA maximum (25°C)

– x μA maximum (–40°C to 125°C)

• VCC isolation and VCC disconnect (Ioff-float) feature

– If either VCC input is <100 mV or disconnected,

all outputs are disabled and become highimpedance

• Ioff supports partial-power-down mode operation

• Control logic (OE) with VCC(MIN) circuitry allows for

control from either A or B port

• Pinout compatible with TXB family level shifters

• Operating temperature from –40°C to +125°C

• Latch-up performance exceeds 100 mA per JESD

78, class II

• ESD protection exceeds JESD 22

– 2500-V human-body model

– 1500-V charged-device model

2 Applications

• Eliminate slow or noisy input signals

• Driving indicator LEDs or buzzers

• Debouncing a mechanical switch

• General purpose I/O level shifting

• Push-pull level shifting (UART, SPI, JTAG, and so

forth)

3 Description

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 1.1 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. See Device

Functional Modes for a summary of the operation of

the control logic.