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参数资料
| 型号： | CY2273A-2 |
| 厂商： | Cypress Semiconductor Corp. |
| 英文描述： | Pentium㈢/II, 6x86, K6 Clock Synthesizer/Driver for Desktop PCs with Intel 82430TX, 82440LX or ALI IV/IV+, AGP and 3 DIMMs |
| 中文描述： | 奔腾㈢/ 2，6x86，K6时钟合成器/与英特尔82430TX，82440LX或阿里四/四，AGP和3个DIMM台式机驱动 |
| 文件页数： | 7/14页 |
| 文件大小： | 178K |
| 代理商： | CY2273A-2 |
CY2273A
7
Switching Characteristics for CY2273A-1, CY2273A-2
[8]
Over the Operating Range
Parameter
t
1
t
2
Output
Description
Output Duty Cycle
[9, 10]
Test Conditions
Min.
45
Typ.
50
Max.
55
Unit
%
All
t
1
= t
1A
÷
t
1B
Between 0.4V and 2.0V, V
DDCPU
= 2.5V
Between 0.4V and 2.4V, V
DDCPU
= 3.3V
Between 0.4V and 2.4V
CPUCLK
CPU Clock Rising and
Falling Edge Rate
[10]
0.75
4.0
V/ns
t
2
SDRAM, PCI,
REF0, USB
SDRAM, PCI, REF0
Clock Rising and Fall-
ing Edge Rate
[10]
0.85
4.0
V/ns
t
2
AGP (-2 only)
AGP Rising and Falling
Edge Rate
Between 0.4V and 2.4V
0.85
4.0
V/ns
t
3
CPUCLK
CPU Clock Rise Time
Between 0.4V and 2.0V, V
DDCPU
= 2.5V
Between 0.4V and 2.4V, V
DDCPU
= 3.3V
Between 2.0V and 0.4V, V
DDCPU
= 2.5V
Between 2.4V and 0.4V, V
DDCPU
= 3.3V
Measured at 1.25V, V
DDCPU
= 2.5V
Measured at 1.5V, V
DDCPU
= 3.3V
Measured at 1.25V for 2.5V clocks, and
at 1.5V for 3.3V clocks
0.4
0.5
2.13
2.67
ns
t
4
CPUCLK
CPU Clock Fall Time
0.4
0.5
2.13
2.67
ns
t
5
CPUCLK
CPU-CPU Clock Skew
100
250
ps
t
6
CPUCLK,
PCICLK
CPU-PCI Clock Skew
1.0
3.0
5.5
ns
t
7
CPUCLK,
SDRAM
CPU-SDRAM Clock
Skew
[10]
Measured at 1.25V for 2.5V clocks, and
at 1.5V for 3.3V clocks
650
ps
t
8
PCICLK,
PCICLK
PCI-PCI Clock Skew
Measured at 1.5V
500
ps
t
9
PCICLK,
AGP (-2 only)
PCICLK-AGP Clock
Skew (-2 only)
Measured at 1.5V
500
ps
t
10
CPUCLK,
SDRAM
Cycle-Cycle Clock
Jitter
[10]
Measured at 1.25V for 2.5V clocks, and
at 1.5V for 3.3V clocks
250
ps
t
10
PCICLK,
AGP (-2 only)
Cycle-Cycle Clock
Jitter
[10]
Measured at 1.5V
500
ps
t
11
CPUCLK,
PCICLK,
AGP (-2 only),
SDRAM
Power-up Time
CPU, PCI, AGP, and SDRAM clock sta-
bilization from power-up
3
ms
Notes:
8.
9.
10. Measured at CPU=66.6 MHz, SDRAM=66.6 MHz, PCI=33.3 MHz, AGP=66.6 MHz.
All parameters specified with loaded outputs.
Duty cycle is measured at 1.5V when V
= 3.3V. When V
= 2.5V, CPUCLK duty cycle is measured at 1.25V.
相关PDF资料 |
PDF描述 |
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| CY2273A-3 | Pentium㈢/II, 6x86, K6 Clock Synthesizer/Driver for Desktop PCs with Intel 82430TX, 82440LX or ALI IV/IV+, AGP and 3 DIMMs |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CY2273A-3 | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:Pentium㈢/II, 6x86, K6 Clock Synthesizer/Driver for Desktop PCs with Intel 82430TX, 82440LX or ALI IV/IV+, AGP and 3 DIMMs |
| CY2273A-4 | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:Pentium㈢/II, 6x86, K6 Clock Synthesizer/Driver for Desktop PCs with Intel 82430TX, 82440LX or ALI IV/IV+, AGP and 3 DIMMs |
| CY2273APVC-1 | 制造商:Cypress Semiconductor 功能描述: |
| CY2273APVC-1T | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CPU System Clock Generator |
| CY2273APVC-2 | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:Pentium㈢/II, 6x86, K6 Clock Synthesizer/Driver for Desktop PCs with Intel 82430TX, 82440LX or ALI IV/IV+, AGP and 3 DIMMs |
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