參數(shù)資料
型號: CY28442ZXC-2T
廠商: Silicon Laboratories Inc
文件頁數(shù): 5/19頁
文件大?。?/td> 0K
描述: IC CLOCK ALVISO PENTM 56TSSOP
標準包裝: 2,000
類型: 時鐘/頻率發(fā)生器
PLL:
主要目的: Intel CPU 服務(wù)器
輸入: LVTTL,晶體
輸出: HCSL,LVCMOS
電路數(shù): 1
比率 - 輸入:輸出: 3:20
差分 - 輸入:輸出: 無/是
頻率 - 最大: 200MHz
電源電壓: 3.135 V ~ 3.465 V
工作溫度: 0°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 56-TFSOP(0.240",6.10mm 寬)
供應(yīng)商設(shè)備封裝: 56-TSSOP
包裝: 帶卷 (TR)
其它名稱: SLCY28442ZXC-2T
CY28442-2
..................... Document #: 38-07691 Rev. *B Page 13 of 19
PCI_STP# Assertion
The PCI_STP# signal is an active LOW input used for
synchronous stopping and starting the PCI outputs while the
rest of the clock generator continues to function. The set-up
time for capturing PCI_STP# going LOW is 10 ns (tSU). (See
Figure 10.) The PCIF clocks will not be affected by this pin if
their corresponding control bit in the SMBus register is set to
allow them to be free-running.
PCI_STP# Deassertion
The deassertion of the PCI_STP# signal will cause all PCI and
stoppable PCIF clocks to resume running in a synchronous
manner within two PCI clock periods after PCI_STP# transi-
tions to a high level.
Tsu
PCI_STP#
PCI_F
PCI
SRC 100MHz
Figure 10. PCI_STP# Assertion Waveform
PCI_STP#
PCI_F
PCI
SRC 100MHz
Tsu
Tdrive_SRC
Figure 11. PCI_STP# Deassertion Waveform
FS_A, FS_B,FS_C
VTT_PW RGD#
PW RGD_VRM
VDD Clock Gen
Clock State
Clock Outputs
Clock VCO
0.2-0.3mS
Delay
State 0
State 2
State 3
Wait for
VTT_PW RGD#
Sample Sels
Off
On
State 1
Device is not affected,
VTT_PW RGD# is ignored
Figure 12. VTT_PWRGD# Timing Diagram
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參數(shù)描述
CY28442ZXCT 功能描述:IC CLOCK GEN ALVISO 56-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器,PLL,頻率合成器 系列:- 產(chǎn)品變化通告:Product Discontinuation 04/May/2011 標準包裝:96 系列:- 類型:時鐘倍頻器,零延遲緩沖器 PLL:帶旁路 輸入:LVTTL 輸出:LVTTL 電路數(shù):1 比率 - 輸入:輸出:1:8 差分 - 輸入:輸出:無/無 頻率 - 最大:133.3MHz 除法器/乘法器:是/無 電源電壓:3 V ~ 3.6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:管件 其它名稱:23S08-5HPGG
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