DUAL SUPPLY TRANSLATING TRANSCEIVER, OPEN DRAIN, AUTO DIRECTION SENSING
DESCRIPTION
The UNTS0104 is a 4-bit, dual supply translating transceiver
with auto direction sensing, that enables bidirectional voltage level
translation. It features two 4-bit input-output ports (An and Bn), one
output enable input (OE) and two supply pins (VCCA and VCCB),
VCCA can be supplied at any voltage between 1.65 V and 3.6 V and
VCCB can be supplied at any voltage between 2.3 V and 5.5 V,
making the device suitable for translating between any of the
voltage nodes (1.8 V, 2.5 V, 3.3 V and 5.0 V). Pins An and OE are
referenced to VCCA and pins Bn are referenced to VCCB, A LOW
level at pin OE causes the outputs to assume a high-impedance
OFF-state. This device is fully specified for partial power-down
applications using IOFF. The IOFF circuitry disables the output,
preventing the damaging backflow current through the device when
it is powered down.
FEATURES
* Wide supply voltage range:
VCCA: 1.65V to 3.6V
VCCB : 2.3V to 5.5V
* Maximum data rates:
Push-pull: 50 Mbps
* IOFF circuitry provides partial Power-down mode operation
* Inputs accept voltages up to 5.5V |