This is a retired product, but fear not as there is a newer, better version available: BOB-11955
images are CC BY-NC-SA 3.0
Replacement: BOB-11955. We've fixed an issue with a connection going to the enable pin as driving that to a high voltage can damage the PCA9306 chip. Go check out the new version! This page is for reference only.
Description: This is a breakout board for the PCA9306 dual bidirectional voltage-level translator. Because different parts sometimes use different voltage levels to communicate, voltage level translators can be the key to making different parts play nice.
The PCA9306 is a dual bidirectional I2C-bus and SMBus voltage-level translator that's operational on the low side from 1.0 V to 3.6 V and on the high side from 1.8 V to 5.5 V. Simply apply your low- and high-side reference voltages to the VREF1 and VREF2 respectively, connect your I/O and drive the Enable pin high to open bidirectional voltage translation without the use of a direction pin!