All Micron DDR3L and DDR3L-RS data sheets include the following bullets under
Features on the first page:
• VDD = VDDQ = 1.35V (1.283–1.45V)
• Backward compatible to VDD = VDDQ = 1.5V ±0.075V
The second bullet is the voltage backward compatibility statement, which specifies that
the 1.35V DDR3L or DDR3L-RS part is backward compatible to 1.5V operation.
Micron 1.35V DDR3L and DDR3L-RS devices use the same die as 1.5V DDR3 devices,
but have been separated during the test screen and marking process. The Micron 1.35V
test screen incorporates testing to ensure backward compatibility to 1.5V operation.
Therefore, all parts marked as DDR3L or DDR3L-RS are backward compatible to parts
marked as DDR3, and meet the JEDEC 1.5V voltage level operation specifications. This
is in compliance with both Micron and JEDEC specifications.