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Description

The ST2349A is a 4-bit dual supply level translator which provides the level shifting capability to allow data transfer in a multi-voltage system. Externally applied voltages, VCC and VL, set the logic levels on either side of the device. It utilizes transmission gate-based design that allows bi-directional level translation without a control pin.

Features

■ 90 Mbps (max) data rate when driven by a totem pole driver

■ 8 Mbps (max) data rate when driven by an open drain pole driver

■ Bi-directional level translation without direction control pin

■ Wide VL voltage range of 1.65 to 3.6 V

■ Wide VCC voltage range of 1.80 to 5.5 V

■ Power down mode feature – when either supply is off, all I/Os are in high impedance

■ Low quiescent current (max 24 μA)

■ Able to be driven by totem pole and open drain drivers

■ 5.5 V tolerant enable pin

■ ESD performance on all pins: ±2 kV HBM

■ Small package and footprint QFN16 (2.6 x 1.8 mm) package

Applications

■ Low voltage system level translation

■ Mobile phones and other mobile devices

■ I2C level translation

■ UART level translation