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| 型號： | SG556 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | Mobile PentiumR Processor Application Clock Generator |
| 中文描述： | 移動PentiumR處理器時鐘發(fā)生器的應(yīng)用 |
| 文件頁數(shù)： | 3/10頁 |
| 文件大小： | 62K |
| 代理商： | SG556 |
SG556
Mobile Pentium Processor Application Clock Generator
with SSCG, USB and Power Management Support
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress.com
Document#: 38-07016 Rev. **
5/17/2001
Page 3 of 10
APPROVED PRODUCT
Power Management Functions
All PCI (excluding PCI_F) and CPU clocks can be enabled or stopped via the PCI_STOP# and CPU_STOP# input pins.
All clocks are stopped in the low state. All clocks maintain a valid high period on transitions from running to stopped and
on transitions from stopped to running when the chip was not powered down. On power up, the VCOs will stabilize to
the correct pulse widths within 0.2 mS. The CPU and PCI clocks transition between running and stopped by waiting for
one positive edge on PCI_F followed by a negative edge on the clock of interest, after which high levels of the output are
either enabled or disabled.
PWR_DWN#
1
1
1
1
0
CPU_STOP#
0
0
1
1
x (don’t care)
PCI_STOP#
0
1
0
1
x (don’tcare)
CPUCLK
LOW
LOW
RUNNING
RUNNING
LOW
PCICLK
LOW
RUNNING
LOW
RUNNING
LOW
OTHER CLKs
RUNNING
RUNNING
RUNNING
RUNNING
LOW
XTAL & VCOs
RUNNING
RUNNING
RUNNING
RUNNING
OFF
Power Management Timing
PCI_F
PCI_STOP#
PCICLK(1:5)
CPU_STOP#
CPUCLK(0:1)
Power Management Timing
Latency
Signal
Signal State
No. of rising edges of free
running PCICLK (PCIF)
1
1
1
1
CPU_ST0P#
0 (disabled)
1 (enabled)
0 (disabled)
1 (enabled)
PCI_ST0P#
NOTES:
1. Clock on/off latency is defined in the number of rising edges of free running PCI CLOCK between the clock disable
goes low/high to the first valid clock comes out of the device.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SG556BYB | Mobile PentiumR Processor Application Clock Generator |
| SGB10UF | 60 mA 1000 - 3500 VOLTS 60 nsec HIGH VOLTAGE RECTIFIER |
| SGB15UF | 60 mA 1000 - 3500 VOLTS 60 nsec HIGH VOLTAGE RECTIFIER |
| SGB20UF | 60 mA 1000 - 3500 VOLTS 60 nsec HIGH VOLTAGE RECTIFIER |
| SGB25UF | 60 mA 1000 - 3500 VOLTS 60 nsec HIGH VOLTAGE RECTIFIER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SG556BYB | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Mobile PentiumR Processor Application Clock Generator |
| SG56 | 制造商:Ametherm Inc 功能描述: |
| SG564020 | 制造商:CELDUC 制造商全稱:celduc-relais 功能描述:RELAY WITH PROPORTIONAL CONTROL |
| SG564083574NZ3RROK | 制造商:SMART Modular Technology Inc 功能描述:CEB 64MB 144P PC133 CL3 4C 8X16 SDRAM SODIMM - Trays |
| SG564120 | 制造商:CELDUC 制造商全稱:celduc-relais 功能描述:RELAY WITH PROPORTIONAL CONTROL |
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