參數(shù)資料
型號: 953002DFLF
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時鐘產(chǎn)生/分配
英文描述: 400 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56
封裝: 0.300 INCH, ROHS COMPLIANT, MO-118, SSOP-56
文件頁數(shù): 21/35頁
文件大小: 280K
代理商: 953002DFLF
28
Integrated
Circuit
Systems, Inc.
ICS953002
0924—11/18/09
Fig. 1
Shared Pin Operation -
Input/Output Pins
The I/O pins designated by (input/output) 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
W
8.2K
W
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.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
953002DFLFT 功能描述:時鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
953004-1 制造商:TE Connectivity 功能描述:SOCKET HEADER 32WAY 制造商:TE Connectivity 功能描述:SOCKET, HEADER, 32WAY 制造商:TE Connectivity 功能描述:SOCKET, HEADER, 32WAY; Connector Type:Wire to Board; Contact Termination:Through Hole Right Angle; Gender:Receptacle; No. of Contacts:32; No. of Rows:2; Pitch Spacing:2.54mm; Contact Plating:Tin; Contact Material:Bronz ;RoHS Compliant: Yes
953-004-1-100-2 制造商:3M Electronic Products Division 功能描述:
953008BFLF 功能描述:時鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
953008BFLFT 功能描述:時鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56