August 2009

Doc ID 15918 Rev 1

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21

ST2189

8-bit dual supply level translator without direction control pin

Features

3.6 V

control pin

grounded, all the outputs will automatically go

to high impedance.

– ±4 kV HBM (human body model)

Applications

Description

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

levels on either side of the device. Its architecture

allows bidirectional level translation without a

control pin.

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.

is grounded, all I/Os go to high impedance

automatically, with very low quiescent current on

QFN20

(1.8 x 3.2 mm)

Table 1.

Device summary

Order code

Package

Packing

ST2189QTR

QFN20 (3.2 x 1.8 mm)

Tape and reel

www.st.com