STMicroelectronics ST4G3234 4-Bit Dual Supply Bus Buffer Level Translator Datasheet

ST4G3234 is a low voltage CMOS four-bit bus buffer level translator produced by ST company. Its working voltage range is 1.4V to 3.6V, and the maximum timing delay is 4.4ns. The input and output current is 5µA.


STMicroelectronics ST4G3234 4-Bit Dual Supply Bus Buffer Level Translator Datasheet - cover page
Brand
STMicroelectronics
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
11
File format
PDF
File size
364 KB
Published
10 August, 2012
Updated
30 September, 2023
MD5 checksum
C1EF3E703D0F9408A92AEFA82C9AA042

About this manual

The ST4G3234 is a dual supply low voltage CMOS 4-bit bus buffer level translator fabricated with sub-micron silicon gate and five-layer metal wiring CMOS technology. It is designed for use as an interface between a 3.3V bus and a 2.5V or 1.8V bus in mixed supply systems, achieving high speed operation while maintaining low power dissipation. The device is intended for one-way asynchronous communication between data buses and includes input and output power down protections to isolate the buses when both power supplies are down.

The IC features high-speed performance with a maximum propagation delay of 4.4ns at Ta=85°C and supports various voltage translation scenarios, including 3.3V to 1.8V and 3.3V to 2.5V. It includes protection circuits against static discharge, offering ESD immunity and transient excess voltage protection. The device is available in a flip-chip package and is RoHS compliant.

What's inside

  • Description
  • Order Codes
  • Pin Description
  • Truth Table
  • Absolute Maximum Ratings
  • Recommended Operating Conditions
  • DC Specification
  • Dynamic Switching Characteristics
  • Capacitance Characteristics
  • Mechanical Data

Specifications

Max Data Rates380 Mbps (1.8V to 3.3V translation)
Propagation Delay (Max)4.4ns at Ta=85°C
Operating Voltage Range1.4V to 3.6V
Package TypeFlip-Chip
ESD Performance (HBM)> 2000V
Operating Temperature Range-40 to 85 °C

Frequently asked questions

What is the maximum data rate for 3.3V to 1.8V translation?

The maximum data rate is 380 Mbps.

Is the ST4G3234 RoHS compliant?

Yes, it is RoHS compliant for the Flip-Chip package.

What is the minimum output impedance?

The minimum output impedance is 10mA at Vocp = 3.0V.

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