In multi-voltage design, isolation cells are often used. This article briefly introduces what an iso cell is, how to use an iso cell, when to add an iso cell, and the insertion position of the iso cell. 1. What is an iso cell? An isolation cell, typically used in Power Shutdown (PSO) and Multi-Supply Multi-Voltage … Read more
Level ShiftersLevel shifters – converting voltage from low to high Driving logic signals from a low power rail to a high voltage rail is a critical issue. Under-driven signals can lead to degraded rise and fall times at the receiving end. This, in turn, can result in higher switching short-circuit currents and reduced noise margins. … Read more
The technologies discussed in the previous chapter are mature. Engineers have been using them for some time, and design tools have supported them for many years. In this chapter, we begin to discuss more recent and proactive methods to reduce power: power gating and adaptive voltage scaling, these two techniques. Both of these techniques differ … Read more
Today, I plan to start a new series on low power design. Although my experience in low power design is not extensive, I have worked on projects with high demands for low power consumption, so I have a general understanding of the common practices and main techniques in low power design. Additionally, due to various … Read more