Description
RT-NVT2008 is a bidirectional voltage level translator. Signal pass IC both ways seamlessly without need of control transmission direction.
Input voltage drives translator high side (VrefB) and a low voltage regulator (VrefA) which can also be sourced on VL pin. Boards are supplied with fixed voltage regulator: 1V/1.2V/1.8V/2.5V/3.3V/5.0V. Output voltage should be selected to supply lower voltage side with minimum voltage difference between VrefB and VrefA:
(V_Input_B - V_Input_A) >= 1V.
See comparison of the correct voltages in the table below:
Input A minimum translated voltage |
Input B supply | ||
---|---|---|---|
2.5V | 3.3V | 5V | |
1V | A | A | A |
1.2V | A | A | A |
1.8V | P | A | A |
2.5V | P | P | A |
3,3V | P | P | A |
A – Allowed configuration
P – Prohibited configuration. It won’t work.
This multpile channel voltage level translator can be used with interfaces: SPI, I2C/TWI, UART or standard logic IO. Example system configurations are showed in the picture:
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