參數(shù)資料
型號: SL28505ALC
元件分類: 時鐘產(chǎn)生/分配
英文描述: PROC SPECIFIC CLOCK GENERATOR, QCC64
封裝: 9 X 9 MM, 0.50 MM PITCH, ROHS COMPLIANT, QFN-64
文件頁數(shù): 9/28頁
文件大?。?/td> 312K
代理商: SL28505ALC
SL28505
Rev 1.0 April 24, 2008
Page 17 of 28
PCI_STP# Assertion
The PCI_STP# signal is an active LOW input used to synchro-
nously stop and start 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 7.) 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 causes 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.
PD_RESTORE
If a ‘0’ is set for Byte 0 bit 0 then, upon assertion of PWRDWN#
LOW, the SL28505 will initiate a full reset. The results of this
will be that the clock chip will emulate a cold power on start
and go to the ‘Latches Open’ state. If the PD_RESTORE bit is
set to a ‘1’ then the configuration is stored upon PWRDWN#
asserted LOW. Note that if the iAMT bit, Byte 0 bit 3, is set to
a ‘1’ then the PD_RESTORE bit must be ignored. In other
words, in Intel iAMT mode, PWRDWN# reset is not allowed.
Tsu
PC I_STP#
PC I_F
PC I
S R C 1 00M H z
Figure 7. PCI_STP# Assertion Waveform
PCI_STP#
PCI_F
PCI
SRC 100MHz
Tsu
Tdrive_SRC
Figure 8. PCI_STP# Deassertion Waveform
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SL28506BZC 功能描述:時鐘發(fā)生器及支持產(chǎn)品 CK505 v1.1 PCIe Gen2 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
SL28506BZC-2 功能描述:時鐘發(fā)生器及支持產(chǎn)品 CK505 v1.1 PCIe Gen2 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
SL28506BZC-2T 功能描述:時鐘發(fā)生器及支持產(chǎn)品 CK505 v1.1 PCIe Gen2 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
SL28506BZCT 功能描述:時鐘發(fā)生器及支持產(chǎn)品 CK505 v1.1 PCIe Gen2 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
SL28506BZI 功能描述:時鐘發(fā)生器及支持產(chǎn)品 CK505 v1.1 PCIe Gen2 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56