 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
TNETV2685FIBZUT11 数据表(PDF) 110 Page - Texas Instruments |
|
|
|||||||||||||||||||||||||||||
TNETV2685FIBZUT11 数据表(HTML) 110 Page - Texas Instruments |
|
|
110 / 190 page  A1 A1 T T DM648 TMS320DM647 TMS320DM648 SPRS372H – MAY 2007 – REVISED APRIL 2012 www.ti.com Table 6-39. DQS and DQ Routing Specification (1) (continued) NO. PARAMETER MIN TYP MAX UNIT 7 Center to center DQ to other DDR2 trace spacing(2) (6) 4 w 8 Center to Center DQ to other DQ trace spacing(7) (2) 3w 9 DQ/DQS E Skew Length Mismatch(3) (4) (5) 100 Mils (6) DQs from other DQS domains are considered other DDR2 trace. (7) DQLM is the longest Manhattan distance of each of the DQS and DQ net classes. Figure 6-18 shows the routing for the DQGATE net classes. Table 6-40 contains the routing specification. A. DM648 is shown in this figure as an example of the device and represents the entire set of devices that include: DM647/DM648. Figure 6-18. DQGATE Routing Table 6-40. DQGATE Routing Specification NO. PARAMETER MIN TYP MAX UNIT 1 DQGATEL Length F(1) CKB0B1 2 DQGATEH Length F(2) (3) CKB2B3 3 Center to center DQGATE to any other trace spacing 4 w 4 DQS/DQ nominal trace length DQLM - 50 DQLM DQLM + Mils 50 5 DQGATEL Skew(4) 100 Mils 6 DQGATEH Skew(5) (3) 100 Mils (1) CKB0B1 is the sum of the length of the CK net plus the average length of the DQS0 and DQS1 nets. (2) CKB2B3 is the sum of the length of the CK net plus the average length of the DQS2 and DQS3 nets. (3) Only used on 32-bit-wide DDR2 memory systems. (4) Skew from CKB0B1 (5) Skew from CKB2B3 110 Peripheral Information and Electrical Specifications Copyright © 2007–2012, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TMS320DM647 TMS320DM648 |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 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 |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
