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參數(shù)資料
| 型號： | ICS951411YGLFT |
| 英文描述： | 68/MDR/RC/F SKT/BD MT/ST/M2.6/SCW/8MIN |
| 中文描述： | 系統(tǒng)時鐘芯片的支持ATI RS400 P4TM的系統(tǒng) |
| 文件頁數(shù)： | 17/19頁 |
| 文件大小： | 206K |
| 代理商： | ICS951411YGLFT |
17
Integrated
Circuit
Systems, Inc.
ICS951411
0891E—03/07/05
Fig. 1
Shared Pin Operation -
Input/Output Pins
The I/O pins designated by (input/output) on the
ICS951416
serve as dual signal functions to the device. During initial
power-up, they act as input pins. The logic level (voltage)
that is present on these pins at this time is read and stored
into a 5-bit internal data latch. At the end of Power-On reset,
(see AC characteristics for timing values), the device
changes the mode of operations for these pins to an output
function. In this mode the pins produce the specified buffered
clocks to external loads.
To program (load) the internal configuration register for
these pins, a resistor is connected to either the VDD (logic 1)
power supply or the GND (logic 0) voltage potential. A 10
Kilohm (10K) resistor is used to provide both the solid CMOS
programming voltage needed during the power-up
programming period and to provide an insignificant load on
the output clock during the subsequent operating period.
Via to
VDD
Clock trace to load
Series Term. Res.
Programming
Header
Via to Gnd
Device
Pad
2K
8.2K
Figure 1 shows a means of implementing this function
when a switch or 2 pin header is used. With no jumper is
installed the pin will be pulled high. With the jumper in
place the pin will be pulled low. If programmability is not
necessary, than only a single resistor is necessary. The
programming resistors should be located close to the series
termination resistor to minimize the current loop area. It is
more important to locate the series termination resistor
close to the driver than the programming resistor.
相關PDF資料 |
PDF描述 |
|---|---|
| ICSXXXXYFLFT | 26/SKT/TB/2R/10AVE/90:10 |
| ICSXXXXYGLFT | System Clock Chip for ATI RS400 P4TM-based Systems |
| ICS951412YGLFT | System Clock Chip for ATI RS480 K8-based Systems |
| ICS951412 | 16-Bit Buffers/Drivers With 3-State Outputs 48-TSSOP -40 to 85 |
| ICS951412YFLFT | System Clock Chip for ATI RS480 K8-based Systems |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ICS951412 | 制造商:ICS 制造商全稱:ICS 功能描述:System Clock Chip for ATI RS480 K8-based Systems |
| ICS951412AFLF | 功能描述:IC SYSTEM CLOCK CHIP K8 56-SSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:PCI Express® (PCIe) 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| ICS951412AFLFT | 功能描述:IC SYSTEM CLOCK CHIP K8 56-SSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:PCI Express® (PCIe) 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| ICS951412AGLF | 功能描述:IC SYSTEM CLOCK CHIP K8 56-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:PCI Express® (PCIe) 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| ICS951412AGLFT | 功能描述:IC SYSTEM CLOCK CHIP K8 56-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:PCI Express® (PCIe) 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
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