STMicroelectronics ST2149B Datasheet

ST2149B 4-bit dual supply level translator without direction control pin datasheet.


STMicroelectronics ST2149B Datasheet - cover page
Brand
STMicroelectronics
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
23
File format
PDF
File size
269 KB
Published
10 August, 2012
Updated
30 September, 2023
Model
ST2149
MD5 checksum
CEA4A3AFCF8DFFCE33B191AD8C8973EB

About this manual

The ST2149B is a 4-bit dual supply level translator designed to facilitate data transfer in multi-voltage systems. It allows bi-directional level translation without a direction control pin, accepting input voltages (VL) from 1.65V to 3.6V and output voltages (Voc) up to 5.5V. The device features a tri-state output mode controlled by an enable pin and is available in a small QFN12 package.

What's inside

  • Description
  • Pin settings
  • Logic diagram
  • Driver requirement
  • Load driving capability
  • Truth table
  • Maximum ratings
  • Electrical characteristics
  • Package mechanical data
  • Revision history

Specifications

Data rate90 Mbps (max.)
Supply voltage VL range1.65 to 3.6 V
Supply voltage Vec range1.65 to 5.5 V
Package typeQFN12 (1.7 x 2.0 mm)
ESD performance+2 kV HBM

Frequently asked questions

Does the ST2149B require a direction control pin?

No, it provides bi-directional level translation without a direction control pin.

What is the maximum data rate of the ST2149B?

The maximum data rate is 90 Mbps at VL=1.8V and Voc=3.3V.

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