• State Resolved
  • Locked Locked
  • Replies 5 replies
  • Subscribers 100 subscribers
  • Views 489 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AM1808 supported DDR2 SDRAM

PALLA MADHUSUDHAN
Prodigy 20 points
Other Parts Discussed in Thread: AM1808, OMAP-L138

IS THERE ANY BODY HELP ME, HOW TO CHOOSE DDR2 SDRAM FOR AM1808 PROCESSOR

  • 0
    TI__Guru**** 393215 points

    Moving this to the AM1X forum.

  • 0
    TI__Mastermind 43660 points

    Hello Madhu,

    Welcome to TI E2E forum!

    First come up with your memory requirement like memory capacity, bus width, operating frequency, No. of memory chips etc., and based on your requirement you can select the DDR2 SDRAM. Also you need to consider the AM1808 DDR2 memory controller features in the device datasheet (SPRS653E) section 6.11.

    We would suggest to use Micron part as most of our customers are using memory from Micron. The LogicPD OMAP-L138/C6748/AM1808 SOM module also having the memory part from Micron MT46H64M16LFCK-6:A.

    Regards,

    Senthil

  • 0 in reply to Senthilkumar Srinivasan
    TI__Mastermind 43660 points

    Hello Madhu,

    The memory part that mentioned in the above post is mDDR and not DDR2. You can prefer to use the following DDR2 parts that are used in our EVMs.

    1. Micron - MT47H64M16HR-3:G

    2. Samsung - K4T1G164QF-BCE7

    Regards,

    Senthil

  • 0 in reply to Senthilkumar Srinivasan
    Prodigy 20 points

    Thank you so much for your reply.

    We need 2Gb (256MB) Capacity DDR2 SDRAM, 16-bit bus width, 1 chip. The operating frequency is whatever available in the market, because the ddr which was used in TI EVKs was Obsolete. In case 2Gb not available then suggest 1Gb.

    The chip MT46H64M16LFCK-6 is also showing as Obsolete in the Micron web site.

    The data sheet SPRS653E showing the Max supported frequency is 156MHz, if i select 333MHz DDR, is it possible to use with 156MHz frequency.

    Presently we are unable to get 155MHz speed of DDR2 in the market.

    Thank you.

  • 0 in reply to PALLA MADHUSUDHAN
    TI__Mastermind 43660 points
    Hello,

    Yes, the AM1808 device supports DDR2 maximum frequency of 156MHz. Since the memory device is not available with 156MHz, you can use 333MHz DDR.

    Did you check the availability of the below mentioned parts.

    1. Micron - MT47H64M16HR-3:G

    2. Samsung - K4T1G164QF-BCE7

    Regards,
    Senthil