參數(shù)資料
型號(hào)： IDTCV109E
廠商： Integrated Device Technology, Inc.
英文描述： CLOCK GENERATOR FOR DESKTOP PC PLATFORMS
中文描述： 時(shí)鐘發(fā)生器的臺(tái)式機(jī)平臺(tái)
文件頁(yè)數(shù)： 19/21頁(yè)
文件大?。?/td> 104K
代理商： IDTCV109E
COMMERCIAL TEMPERATURE RANGE
IDTCV109E
CLOCK GENERATOR FOR DESKTOP PC PLATFORMS
19
PD#, POWER DOWN
PD#is an asynchronous active low input used to shut off all clocks cleanly prior to clock power. When PD#is asserted low all clocks will be driven low
before turning off the VCO. In PD#de-assertion all clocks will start without glitches.
PD# ASSERTION
PD#should be sampled low by two consecutive CPU#rising edges before stopping clocks. All single-ended clocks will be held low on their next high to
low transition. All differential clocks will be held high on the next high to low transition of the complimentary clock. If the control register determning to drive
mode is set to tri-state’, the differential pair will be stopped in tri-state mode, undriven. When the drive mode but corresponding to the CPU or SRC clock of
interest is set to 0’ the true clock will be driven high at 2 x I
REF
and the complementary clock will be tristated. If the control register is programmed to 1’ both
clocks will be tristated.
P
WRDWN
#
CPU 133MHz
CPU# 133MHz
SRC 100MHz
SRC# 100MHz
USB 48MHz
PCI 33MHz
REF 14.31818
P
WRDWN
#
1
0
CPU
Normal
I
REF
*2 or float
CPU#
Normal
Float
SRC
Normal
I
REF
*2 or float
SRC#
Normal
Float
PCIF/PCI
33MHz
Low
USB
48MHz
Low
3V66
66MHz
Low
REF
14.318MHz
Low
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IDTCV109EPV 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:CLOCK GENERATOR FOR DESKTOP PC PLATFORMS
IDTCV110JP 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR
IDTCV110JPV 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR
IDTCV110JPVG 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR
IDTCV110L 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR
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