UM3211P

UM3211P Bidirectional voltage level translator for open-drain and General Description push-pull applications UM3211P SOT363 The UM3211P is a bidirectional voltage level translator operational from 1.0V to 3.6V (VCCA) and 1.8V to 5.5V (VCCB), which allows bidirectional voltage translations between 1.0V and 5V without the need for a direction pin in open-drain or push-pull applications. The UM3211P is a 1-bit level translator. Its transmission speeds are below 33MHz for an open-drain system with a 50pF capacitance and a pull-up resistor of 197Ω. The low ON-state resistance (Ron) of the switch allows connections to be made with minimal propagation delay. When EN is high, the translator switch is ON, and the A I/O is connected to the B I/O, allowing bidirectional data flow between ports. When EN is low, the translator switch is off, and a high-impedance state exists between ports. The translators provide excellent ESD protection to lower voltage devices, and at the same time protect less ESD-resistant devices. Applications Features  SPI, MICROWIRE, and I2C Level  Provides bidirectional voltage translation Translation with no direction pin  Low-Voltage ASIC Level Translation  Less than 1.5 ns maximum propagation  Smart Card Readers delay  Cell-phone Cradles  Low 3.5Ω ON-state connection between  Portable POS Systems input and output ports provides less signal  Portable Communication Devices distortion  Low-Cost Serial Interfaces  5V tolerant I/O port...