参数资料
型号: SL28505ALC
元件分类: 时钟产生/分配
英文描述: PROC SPECIFIC CLOCK GENERATOR, QCC64
封装: 9 X 9 MM, 0.50 MM PITCH, ROHS COMPLIANT, QFN-64
文件页数: 9/28页
文件大小: 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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SL28506BZC 功能描述:时钟发生器及支持产品 CK505 v1.1 PCIe Gen2 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56
SL28506BZC-2 功能描述:时钟发生器及支持产品 CK505 v1.1 PCIe Gen2 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56
SL28506BZC-2T 功能描述:时钟发生器及支持产品 CK505 v1.1 PCIe Gen2 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56
SL28506BZCT 功能描述:时钟发生器及支持产品 CK505 v1.1 PCIe Gen2 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56
SL28506BZI 功能描述:时钟发生器及支持产品 CK505 v1.1 PCIe Gen2 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56