JEDEC JESD 8-20A

This standard defines the dc and ac single-ended (data) and differential (clock) operating conditions, I/O impedance, and the termination and calibration scheme for 1.5 V Pseudo Open Drain I/Os. The 1.5 V Pseudo Open Drain interface, also known as POD15, is primarily used to communicate with GDDR4 and GDDR5 SGRAM devices. Item 135.01.