Bidirectional I2C Voltage-Level Translator v2.0

Bidirectional I2C Voltage-Level Translator v2.0
Item# I2C-TRN-V2
$12.99, 10/$116.90, 25/$259.75

Product Description:

This is a new improved version 2.0!
Lower price!
On-board 3.3V 250mA voltage regulator (can be use to power external circuits)
Hot swappable
Compatible with I2C Satandard mode (10 kbit/s) and I2C Fast mode (400 kbit/s)
High-impedance SDAn and SCLn pins when on power on Vcc
Optimum noise margin

The I2C-TRN-V2 board is an 8-pin CMOS device that translates voltage level. It allows bidirectional voltage translation between 3.3V and 5V, without the use of a direction pin. The low ON-state resistance of the switch allows connections to be made with minimal propagation delay. There are no external components required. This makes it perfect for embedded systems that require voltage translation between the master and slave.

This I2C-TRN-V2 designed ready for bidirectional 5V <=> 3.3V translator. It allows 5V system to communicate I2C protocol to 3.3V device without having external 3.3V supply. It is ready to use off-the-shelf.

This board features innovations that set it apart from other voltage-level translator module. Innovations feature like on-board pull-up resistors, power LED and 3.3 V regulator. This 3.3V can also use to power up external devices for up to 250mA. The module can be quickly connected directly on to the breadboard. The board is small and compact in size 0.70 x 0.57 inches.

The I2C-TRN is designed base on PCA9512A IC. This dual bidirectional I2C voltage-level translator with hot swappable is operational from 5.0V on VCC and 3.3V on VCC2. When no power on VCC and VCC2, the translator switch is off, and a high-impedance state exists between SDAn and SCLn pins.


Stand alone module, no external components required
On-board 3.3 voltage regulator, pull-up resistors and power LED
2-Bit bidirectional translator for SDA and SCL lines in mixed-mode I2C applications
Typ of 5-ns propagation delay to accommodate standard-mode and fast-mode I2C devices
Allows voltage-level translator between 5.0V <=> 3.3V
Provide bidirectional voltage translation with no direction pin
Open-drain I2C I/O ports provides less signal distortion
Bidirectional buffer for SDA and SCL lines increases fanout
Breadboard friendly
High quality double sided Blue PCB
Small and compact in size 0.70 x 0.57 inches
Dual row 0.6 width, 0.1 pitch header pins
Come with 4-PIN male headers qty. 2, ready to use (see first picture below).


Schematic: I2C-TRN-V2 Schematic
PCA9512A datasheet: PCA9512A.pdf