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Hitachi voltage translator operates down to 1.2V

Posted: 05 Mar 2003 ?? ?Print Version ?Bookmark and Share

Keywords:hitachi? HD74ALVC165245? HD74ALVC166245? hd74alvc? voltage translator ic?

Hitachi Ltd has announced the release of the HD74ALVC165245 and HD74ALVC166245 high-speed voltage translator ICs that support a 16-bit bus width and are capable of operating down to 1.2V, making them suitable for use in compact, low-voltage, high-speed systems such as digital cameras and mobile phones.

Manufactured using the same 0.355m process employed to produce the HD74ALVC series of logic ICs, both devices enable high-speed bidirectional data transfer between different voltages ranging from 1.2V to 3.6V, with minimal power consumption. Over a 16-bit bus they support a maximum data transfer rate of 4.4ns.

In addition, the ICs incorporate an I/O tolerant function that reduces system power consumption by preventing current from flowing into the voltage translator IC when the system is powered down. This feature further helps limit power consumption and is suitable for battery-powered portable products such as mobile phones.

The translator ICs function from two power supply voltages. The HD74ALVC165245 is designed for systems in which the control signal power supply voltage (VccB) is lower than that of other devices (VccA > VccB). The HD74ALVC166245 is designed for systems in which the control signal power supply voltage (VccB) is higher than that of other devices (VccA < VccB). Both have an output current of 24mA.

They are available in 8.1-by-12.5-by-1.2mm, 48-pin TSSOPs and are priced at about 85 cents for 10,000 or more units.

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