Toshiba announces high speed bus switch for 5V interfaces
1 min read
Toshiba Electronics Europe has expanded its range of bus switches with a new device that addresses the data rate and power requirements of high speed digital applications requiring a 5V interface.
The TC7MB3257C is a quad SPDT bus switch designed to offer high speed operation through reduction of capacitance and resistance values, while keeping the supply voltage at 5V. It is targeted at industrial applications and operates from a supply voltage between 4 and 5.5V.
In the on state, the switch is said to exhibit a typical terminal capacitance of 8.5pF and an on resistance of 3ohm. According to Toshiba, this results in a 3dB cut off frequency of 590MHz and offers a significant improvement over previous devices. The resulting reduction of signal rise and fall times is also designed to enable support of high data speeds.
The TC7MB3257C can operate in multiplexing or full isolation mode. Multiplexing of the active output port is achieved by applying a select signal, while full isolation between input and output can be achieved with the output enable voltage. Additional features include a maximum quiescent current of 10µA, power down protection for all input pins and integrated protection against electrostatic discharge up to 2kV.
