HSTL Class II

This Figure shows a sample circuit illustrating a termination technique for HSTL class-II (1.5V or 1.8V) with unidirectional termination. In a specific circuit, all drivers and receivers must be at the same voltage level (1.5V or 1.8V); they are not interchangeable (i.e., HSTL_II_18 should only interface with HSTL_II_18). Only HR I/O banks support the class-II standards.

Figure 1-60: HSTL Class II (1.5V or 1.8V) Unidirectional Termination

X-Ref Target - Figure 1-60

This Figure shows a sample circuit illustrating a termination technique for HSTL class-II (1.5V or 1.8V) with bidirectional termination. In a specific circuit, all drivers and receivers must be at the same voltage level (1.5V or 1.8V); they are not interchangeable (i.e., HSTL_II_18 should only interface with HSTL_II _18).

Figure 1-61: HSTL Class II (1.5V or 1.8V) Bidirectional Termination

X-Ref Target - Figure 1-61