Shown here is a comparison table for the Low Power or LP versions DDR, DDR2, DDR3 and DDR4. The advantages of the LP SDRAM devices are added power saving features, such as Temperature Compensation Self Refresh or TCSR, Partial Array Self Refresh or PASR and Deep Power-Down or DPD. LP SDRAM devices are more suitable for portable or battery powered applications, such as mobile phone and wearable devices. JEDEC set the standard for the LP SDRAM interfaces.