ST2189：8-bit dual supply level translator without direction control pin

The ST2189 is an 8-bit dual supply level translator which provides the level shifting capability to allow data transfer in a multi-voltage system. Externally applied voltages, V_CCB and V_CCA, set the logic levels on either side of the device. Its architecture allows bidirectional level translation without a control pin.

The ST2189 accepts V_CCA from 1.65 V to 3.6 V and V_CCB from 1.65 V to 3.6 V, making it ideal for data transfer between low-voltage ASICs/PLD and higher voltage systems. This device has a tristate output mode which can be used to disable all I/Os.

In power down mode feature - when V_CCB supply is grounded, all I/Os go to high impedance automatically, with very low quiescent current on V_CCA supply.

技术特点Key Features

46 MHz: 92 Mbps data transfer when V_CCA = 3.6 V
Bidirectional level translation without direction control pin
Wide voltage range of 1.65 V to 3.6 V for both V_CCA and V_CCB
Configurable voltage translation:V_CCA can be = V_CCB or V_CCA can be = V_CCB
Partial power down support - when V_CCB is grounded, all the outputs will automatically go to high impedance.
Low quiescent current (5 μA)
ESD performance:±4 kV HBM (human body model)