SY100H606JZ-TR

Logic - Translators, Level Shifters

The SY100H606JZ-TR is an integrated circuit translating between 1.8V and 3.3V levels. It is typically used to interface two systems running at two different voltage levels, where the voltages are considered to be too far apart to safely bridge the gap without having some form of intermediate level shifter.

The working principle behind such an integrated circuit is a combination of two fundamental electronic principles: logic translation and level shifting. Logic translation refers to how two different logic states (like "1" and "0"), which can be represented by two different voltages, can be changed into each other. For example, a signal comprised of a series of 1s and 0s could be converted into signals using a voltage of 0.8V for a 0 and a voltage of 1.4V for a 1. Level shifting simply involves changing the voltage of the signal to something else. In the example above, a 0.8V signal would be changed to a 1.4V signal.

In the case of the SY100H606JZ-TR, the main purpose of the device is to translate between 1.8V and 3.3V levels. It does this by using three discrete logic-level shifters, which are configured to switch between the two different levels.

The first logic-level shifter is configured to switch a signal from 1.8V to 3.3V. This is done using a pair of MOSFET transistors, one of which is connected to the input signal (1.8V), while the other is connected to the output signal (3.3V). When the input signal is low (1.8V), the MOSFET connected to it turns on and the MOSFET connected to the output also turns on. This causes the output signal to become 3.3V.

The second logic-level shifter switches from 3.3V to 1.8V. This is done by using another pair of MOSFET transistors, this time connected in parallel. One of the MOSFETs is connected to the input signal (3.3V), and the other is connected to the output signal (1.8V). When the input signal is high (3.3V), the MOSFET connected to it turns on and the MOSFET connected to the output also turns on. This causes the output signal to become 1.8V.

The third logic-level shifter switches 1.8V and 3.3V in both directions, depending on the state of the input signal. This is done using a third pair of MOSFETs. One MOSFET is always connected to the input signal (1.8V or 3.3V), and the other is connected to either the 1.8V or the 3.3V output. When the input voltage is 1.8V, the MOSFET connected to it turns on and the MOSFET connected to the 1.8V output also turns on. This causes the output signal to become 1.8V. When the input voltage is 3.3V, the MOSFET connected to it turns on and the MOSFET connected to the 3.3V output also turns on. This causes the output signal to become 3.3V.

By using a combination of these three logic-level shifters, the SY100H606JZ-TR can translate between 1.8V and 3.3V levels. This is done by reading the input signal and then supplying either 1.8V or 3.3V to the output, depending on the value of the input.

The SY100H606JZ-TR is a useful device for applications requiring a safe bridge between two different voltage levels. By using logic translation and level shifting, it makes communication between the two systems possible. As it is a fully integrated device, it also eliminates the need for separate components in order to achieve the desired level shifting.