ST2149B datasheet(5/23 Pages) STMICROELECTRONICS

Il numero della parte	ST2149B

Spiegazioni elettronici	4-bit dual supply level translator without direction control pin

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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5 / 23 page

ST2149B

Description

Doc ID 023310 Rev 1

5/23

1

Description

The ST2149B 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. Its architecture allows bi-directional

level translation without a control pin.

The ST2149B accepts VL from 1.65 to 3.6 V and VCC from VL to 5.5 V, making it ideal for

data transfer between low-voltage ASICs/PLD and higher voltage systems. This device has

a tri-state output mode which can be used to disable all I/Os.

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