參數(shù)資料
型號(hào)： CY2275A
廠商： Cypress Semiconductor Corp.
英文描述： PentiumII Clock Synthesizer/Driver for Desktop PCs with Intel 82440LX with 3 DIMMs(帶英特爾82440LX 和 3個(gè)DIMM的應(yīng)用于桌上型PC機(jī)的奔騰II時(shí)鐘合成器/驅(qū)動(dòng)器)
中文描述： PentiumII時(shí)鐘合成器/ 82440LX與英特爾臺(tái)式機(jī)與3個(gè)DIMM驅(qū)動(dòng)器（帶英特爾82440LX和3個(gè)DIMM內(nèi)存的應(yīng)用于桌上型電腦機(jī)的奔騰二時(shí)鐘合成器/驅(qū)動(dòng)器）
文件頁(yè)數(shù)： 6/12頁(yè)
文件大?。?/td> 200K
代理商： CY2275A
CY2275A
6
Switching Characteristics
[6]
Parameter
Output
Description
Test Conditions
Min.
Typ.
Max.
Unit
t
1
t
1C
t
1C
t
1D
t
1D
t
2
All
Output Duty Cycle
[7]
t
1
= t
1A
÷
t
1B
Above 2.0V, 66.6 MHz, V
DDCPU
= 2.5V
Above 2.4V, 33.3 MHz
45
50
55
%
CPUCLK
CPU Clock HIGH Time
5.2
ns
PCICLK
PCI Clock HIGH Time
12.0
ns
CPUCLK
CPU Clock LOW Time
Below 0.4V, 66.6 MHz, V
DDCPU
= 2.5V
Below 0.4V, 33.3 MHz
5.0
ns
PCICLK
PCI Clock LOW Time
12.0
ns
CPUCLK,
IOAPIC
CPU and IOAPIC Clock
Rising and Falling Edge
Rate
Between 0.4V and 2.0V
0.75
1
4.0
V/ns
t
2
PCICLK,
REF0
PCI, REF0 Clock Rising
and Falling Edge Rate
Between 0.4V and 2.4V
0.75
1
4.0
V/ns
t
2
SDRAM
SDRAM Rising and Fall-
ing Edge Rate
Between 0.4V and 2.4V
0.75
1
4.0
V/ns
t
3
t
4
t
5
t
6
CPUCLK
CPU Clock Rise Time
Between 0.4V and 2.0V, V
DDCPU
= 2.5V
Between 2.0V and 0.4V, V
DDCPU
= 2.5V
Measured at 1.25V, V
DDCPU
= 2.5V
Measured at 1.25V for 2.5V clocks, and
at 1.5V for 3.3V clocks
0.4
2.13
ns
CPUCLK
CPU Clock Fall Time
0.4
2.13
ns
CPUCLK
CPU-CPU Clock Skew
100
250
ps
CPUCLK,
PCICLK
CPU-PCI Clock Skew
1.0
3.5
5.8
ns
t
7
CPUCLK,
SDRAM
CPU-SDRAM Clock
Skew
Measured at 1.25V for 2.5V clocks, and
at 1.5V for 3.3V clocks
500
600
ps
t
8
CPUCLK,
SDRAM
Cycle-Cycle Clock Jitter
Measured at 1.25V for 2.5V clocks, and
at 1.5V for 3.3V clocks
250
ps
t
8
t
9
PCICLK
Cycle-Cycle Clock Jitter
Measured at 1.5V
500
ps
CPUCLK,
PCICLK,
SDRAM
Power-up Time
CPU, PCI, and SDRAM clock stabiliza-
tion from power-up
3
ms
Notes:
6.
7.
All parameters specified with loaded outputs.
Duty cycle is measured at 1.5V when V
DD
= 3.3V. When V
DDCPU
= 2.5V, CPUCLK duty cycle is measured at 1.25V.
相關(guān)PDF資料
PDF描述
CY2276A-12 PentiumII Clock Synthesizer/Driver for Desktop PCs with Intel 82440LX and 4 DIMMs(帶英特爾82440LX 和4個(gè)DIMM的應(yīng)用于桌上型PC機(jī)的奔騰II時(shí)鐘合成器/驅(qū)動(dòng)器)
CY2276A-13 PentiumII Clock Synthesizer/Driver for Desktop PCs with Intel 82440LX and 4 DIMMs(帶英特爾82440LX 和4個(gè)DIMM的應(yīng)用于桌上型PC機(jī)的奔騰II時(shí)鐘合成器/驅(qū)動(dòng)器)
CY2276A-21 PentiumII Clock Synthesizer/Driver for Desktop PCs with Intel 82440LX and 3SO- DIMMs(帶英特爾82440LX 和3SO-DIMM的應(yīng)用于桌上型PC機(jī)的奔騰II時(shí)鐘合成器/驅(qū)動(dòng)器)
CY2276A-31 PentiumII Clock Synthesizer/Driver for Desktop PCs with Intel 82440LX and 3SO- DIMMs(帶英特爾82440LX 和3SO-DIMM的應(yīng)用于桌上型PC機(jī)的奔騰II時(shí)鐘合成器/驅(qū)動(dòng)器)
CY2278A PentiumII Clock Synthesizer/Driver for Mobile PCs with Intel 82430TX and No SDRAM(帶英特爾82430TX和2個(gè)DIMM 或3個(gè)SO-DIMM 的應(yīng)用于移動(dòng)PC機(jī)的奔騰II6x86, K6 時(shí)鐘合成器/驅(qū)動(dòng)器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CY2275APVC-12 制造商:Cypress Semiconductor 功能描述:66.654 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48
CY2275PVC-1 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator
CY2276APVC-13 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator
CY2276PVC-1 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator
CY2276PVC-2 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator
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