1 Reply Latest reply on Nov 25, 2014 8:55 AM by allan_intel

    DRAM timing parameters- tccd and tburst




      I have been reading DRAM column read protocol which is basically defined by three timing

      paremeters (1) tcas (2) tccd - column to column delay and (3) tburst- data burst duration


      I am not able to understand the timing parameters (2) and (3). The text which I am reading

      says that tccd is DRAM internal burst length and duration of the data burst on data bus is tburst.

      Can anybody explain me these two timing parameters and why they are named so?


      Figure 5. Shown below are pair of "back-to-back" reads. Our example Row Cycle Time (tRC) lets us transfer up to 16 bytes of data with a minimum Page open time of 24T using CL-tRCD-tRP-tRAS timings of 6-6-6-18