General Description
The UM3301B/UM3301DA series is one channel level translator with auto direction sensing. This 1-channel non-inverting translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2V to 3.6V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65V to 5.5V. This allows for universal low-voltage bidirectional translation between any of the 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5V voltage nodes. Both I/O ports are auto-sensing, thus no direction control pin is required, making it ideal for data transfer between low-voltage ASICs/PLDs and higher voltage systems.

FEATUREs
● 1.2V to 3.6V on A Port and 1.65V to 5.5V
   on B Port (VCCA ≤VCCB)
● VCC Isolation Feature–If Either VCC Input is
   at GND, All Outputs are in the
   High-Impedance State
● OE Input Circuit Referenced to VCCA
● Low Power Consumption
● Latch-up Performance Exceeds 100mA
● ±5kV ESD Protection on B Ports

APPLICATIONs
● Low-Voltage ASIC Level Translation
● Cell-Phone Cradles
● Portable POS Systems
● Portable Communication Devices
● Low-Cost Serial Interfaces
● Cell-Phones
● GPS
● Telecommunications Equipment