Dual Supply GreenPAK™

These members of the GreenPAK family can easily add level translation capability to the set of functions implemented on an individual design. There is flexibility for doing level translation from either the higher voltage domain to the lower voltage domain, or the other direction also.

Developing Dual Supply GreenPAK projects is made simple with the easy-to-use GreenPAK development hardware and simple GUI interface of GreenPAK Designer, allowing our customers to quickly and easily implement new designs and respond to changing requirements.

The simplest use case for this family of devices is making a direct connection to transmit signals across two voltage domains. In figure 1 below, the I/O pins which connect to the primary supply voltage (Vdd) are highlighted in blue, and the I/O pins connected to the lower voltage supply (Vdd2) are highlighted in gold. Making a direct wire connection, as is shown here, will allow a signal to pass from Pin 16 on the Vdd2 domain to Pin 3 on the Vdd domain.

图1.简单的双电源实现

还可以在另一个信号的控制下启用信号来选择性地通过一个方向或另一个方向。下面的图2中示出了这一示例，其中信号可以源自销3或销16，基于引脚4的状态，直接选择。

Figure 2. Dual Supply GreenPAK Implementation