Electronic Components Datasheet Search |
|
IS61DDPB42M18A Datasheet(PDF) 7 Page - Integrated Silicon Solution, Inc |
|
IS61DDPB42M18A Datasheet(HTML) 7 Page - Integrated Silicon Solution, Inc |
7 / 32 page IS61DDPB42M18A/A1/A2 IS61DDPB41M36A/A1/A2 Integrated Silicon Solution, Inc.- www.issi.com Rev. 00A 7/05/2012 7 ODT PIN 1) ODT Pin in option1 . ODT values of K, K#, DQs, and Wx# are controlled by ODT pin. . ODT for DQs will be on and off depending on the status. Read command will turn ODT off as the following rule. Off: First Read Command + Read Latency - 0.5 cycle On: Last Read Command + Read Latency + BL/2 cycle + 0.5 cycle (See below timing chart) Example1) BL=2, RL(Read Latency=2.5) K K# Command DQ(DDRIIP) DQ ODT RD a Qa Qa RD b RD c RD d Qb Qb Qc Qc Qd Qd WT e WT f WT g WT h RD i QQ RD j De De Df Df Dg Dg Dh Dh Read Latency=2.5 Read Latency=2.5 Enable Disable Enable Disable RL BL/2 0.5 RL-0.5 Example2) BL=4, RL(Read Latency=2.5) K K# Command DQ(DDRIIP) DQ ODT RD a Qa Qa RD c Qa Qa Qc Qc Qc Qc WT e WT g RD i QQ De De De De Dg Dg Dg Dg Read Latency=2.5 Read Latency=2.5 Enable Disable Enable RL BL/2 0.5 RL-0.5 Disable Example3) BL=2, RL(Read Latency=2.0) K K# Command DQ(DDRIIP) DQ ODT RD a Qa Qa RD b RD c RD d Qb Qb Qc Qc Qd Qd WT e WT f WT g WT h RD i QQ Q RD j De De Df Df Dg Dg Dh Dh Read Latency=2.0 Read Latency=2.0 Enable Disable Enable Disable RL BL/2 0.5 RL-0.5 2) ODT Pin in option2 . Same ODT pin rule of option1 applies except K and K#. |
Similar Part No. - IS61DDPB42M18A |
|
Similar Description - IS61DDPB42M18A |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |