Electronic Components Datasheet Search |
|
CY28405OXCT Datasheet(PDF) 3 Page - SpectraLinear Inc |
|
CY28405OXCT Datasheet(HTML) 3 Page - SpectraLinear Inc |
3 / 18 page CY28405 Rev 1.0, November 20, 2006 Page 3 of 18 MODE Select The hardware strapping MODE input pin can be used to select the functionality of the RESET#/PD# pin. The default (internal pull up) configuration is for this pin to function as a RESET# Watchdog output. When pulled LOW during device power-up, the RESET#/PD# pin will be configured to function as a Power Down input pin. Frequency Select Pins Host clock frequency selection is achieved by applying the appropriate logic levels to FS_A through FS_E inputs prior to VTT_PWRGD# assertion (as seen by the clock synthesizer). Upon VTT_PWRGD# being sampled low by the clock chip (indicating processor VTT voltage is stable), the clock chip samples the FS_A through FS_E input values. For all logic levels of FS_A through FS_E, VTT_PWRGD# employs a one-shot functionality in that once a valid low on VTT_PWRGD# has been sampled, all further VTT_PWRGD# and FS_A through FS_E transitions will be ignored. Table 1. Frequency Selection Table Input Conditions Output Frequency VCO Freq. PLL Gear Constants (G) FS_E FS_D FS_C FS_B FS_A CPU 3V66 PCI FSEL_4 FSEL_3 FSEL_2 FSEL_1 FSEL_0 0 0 0 0 0 100.7 67.1 33.6 805.6 24004009.32 0 0 0 0 1 100.2 66.8 33.4 801.6 24004009.32 0 0 0 1 0 108.0 72.0 36.0 864.0 24004009.32 0 0 0 1 1 101.2 67.5 33.7 809.6 24004009.32 0 0 1 0 0 Reserved Reserved Reserved Reserved Reserved 0 0 1 0 1 Reserved Reserved Reserved Reserved Reserved 0 0 1 1 0 Reserved Reserved Reserved Reserved Reserved 0 0 1 1 1 Reserved Reserved Reserved Reserved Reserved 0 1 0 0 0 125.7 62.9 31.4 754.2 32005345.76 0 1 0 0 1 130.3 65.1 32.6 781.6 32005345.76 0 1 0 1 0 133.6 66.8 33.4 801.6 32005345.76 0 1 0 1 1 134.2 67.1 33.6 805.2 32005345.76 0 1 1 0 0 134.5 67.3 33.6 807.0 32005345.76 0 1 1 0 1 148.0 74.0 37.0 888.0 32005345.76 0 1 1 1 0 Reserved Reserved Reserved Reserved Reserved 0 1 1 1 1 Reserved Reserved Reserved Reserved Reserved 1 0 0 0 0 Reserved Reserved Reserved Reserved Reserved 1 0 0 0 1 Reserved Reserved Reserved Reserved Reserved 1 0 0 1 0 167.4 55.8 27.9 669.6 48008018.65 1 0 0 1 1 170.0 56.7 28.3 680.0 48008018.65 1 0 1 0 0 175.0 58.3 29.2 700.0 48008018.65 1 0 1 0 1 180.0 60.0 30.0 720.0 48008018.65 1 0 1 1 0 185.0 61.7 30.8 740.0 48008018.65 1 0 1 1 1 190.0 63.3 31.7 760.0 48008018.65 1 1 0 0 0 100.9 67.3 33.6 807.2 24004009.32 1 1 0 0 1 133.9 67.0 33.5 803.4 32005345.76 1 1 0 1 0 200.9 67.0 33.5 803.6 48008018.65 1 1 0 1 1 Reserved Reserved Reserved Reserved Reserved 1 1 1 0 0 100.0 66.7 33.3 800.0 24004009.32 1 1 1 0 1 133.3 66.7 33.3 800.0 32005345.76 1 1 1 1 0 200.0 66.7 33.3 800.0 48008018.65 1 1 1 1 1 Reserved Reserved Reserved Reserved Reserved |
Similar Part No. - CY28405OXCT |
|
Similar Description - CY28405OXCT |
|
|
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 |