ST2G3236 Level Translator
Dual supply low voltage CMOS 2-BIT BUS Transceiver

ST2G3236 Product Page
Nowadays there is a trend for supply voltages to migrate to lower levels to support low-power, high performance applications. While some devices are capable of operating at lower voltages, other devices might not have the same capability. This calls for logic level translation to interface the separately powered components of a system.

The ST2G3236 is a dual supply low voltage CMOS 2-bit bus transceiver fabricated with submicron silicon gate and five-layer metal wiring C2MOS technology. Designed for use as an interface between a 3.3V bus and a 2.5V or 1.8V bus in mixed 3.3V/1.8V, and 2.8V/1.8V supply systems, it achieves high speed operation while maintaining the CMOS low power dissipation. This device is intended for a two-way asynchronous communication between data buses and the direction of data transmission is determined by DIR inputs. The A-port interfaces with the higher voltage bus while the B-port interfaces with the lower voltage bus. A logic high/low on one input port appears as a logic high/low on the opposite output port without logic inversion.
In applications where only single direction translation is required, the DIR pins can be tied to ground or VCC accordingly. While in bi-directional applications, the DIR pins can be controlled using the DIR through GPIO.

Single direction translation application using ST2G3236

Bi-directional translation application using ST2G3236