数据搜索系统,热门电子元器件搜索 |
|
EP1K50 数据表(PDF) 37 Page - Altera Corporation |
|
EP1K50 数据表(HTML) 37 Page - Altera Corporation |
37 / 86 page Altera Corporation 37 ACEX 1K Programmable Logic Device Family Data Sheet 13 For designs that require both a multiplied and non-multiplied clock, the clock trace on the board can be connected to the GCLK1 pin. In the Altera software, the GCLK1 pin can feed both the ClockLock and ClockBoost circuitry in the ACEX 1K device. However, when both circuits are used, the other clock pin cannot be used. ClockLock & ClockBoost Timing Parameters For the ClockLock and ClockBoost circuitry to function properly, the incoming clock must meet certain requirements. If these specifications are not met, the circuitry may not lock onto the incoming clock, which generates an erroneous clock within the device. The clock generated by the ClockLock and ClockBoost circuitry must also meet certain specifications. If the incoming clock meets these requirements during configuration, the ClockLock and ClockBoost circuitry will lock onto the clock during configuration. The circuit will be ready for use immediately after configuration. Figure 19 shows the incoming and generated clock specifications. Figure 19. Specifications for the Incoming & Generated Clocks Note (1) Note: (1) The tI parameter refers to the nominal input clock period; the tO parameter refers to the nominal output clock period. Input Clock ClockLock Generated Clock tCLK1 tINDUTY tI+ tCLKDEV tR tF tO tI+ tINCLKSTB tO tO tJITTER tO+ tJITTER tOUTDUTY |
类似零件编号 - EP1K50 |
|
类似说明 - EP1K50 |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
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 | 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 |