This is information on a product in full production.

February 2013

DocID023308 Rev 2

1/21

1

ST2129B

2-bit dual supply level translator without direction control pin, push-

pull output

Datasheet

Features

 45 MHz: 90 Mbps (max.) data rate 

 Bi-directional level translation without direction

control pin

 Totem pole driving

 5.5 V tolerant Enable pin

 ESD performance on all pins: ±2 kV HBM

 Small package and footprint 

QFN8 1.4 x 1.2 x 0.55 mm

Applications

 Low-voltage system level translation

 Mobile phones and other mobile devices

Description

The ST2129B device is a 2-bit dual supply level

translator which provides the level shifting

capability to allow data transfer in a multi-voltage

set the logic levels on either side of the device.



Its architecture allows bi-directional level

translation without a control pin.

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.

QFN8

(1.4 x 1.2 x 0.55 mm)

Table 1. Device summary

Order code

Package

Packing

Package topmark

ST2129BQTR

QFN8 (1.4 x 1.2 x 0.55 mm)

Tape and reel (3000 parts per reel)

1A

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