參數(shù)資料
型號(hào)： 951413CFLF
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 時(shí)鐘產(chǎn)生/分配
英文描述： 400 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56
封裝： 0.300 INCH, 0.025 INCH PITCH, GREEN, MO-118, SSOP-56
文件頁(yè)數(shù)： 14/26頁(yè)
文件大?。?/td> 257K
代理商： 951413CFLF
21
Integrated
Circuit
Systems, Inc.
ICS951413
0929D—10/30/06
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.
Figure 1 shows a means of implementing this function when
a switch or 2 pin header is used. With no jumper is installed
Via to
VDD
Clock trace to load
Series Term. Res.
Programming
Header
Via to Gnd
Device
Pad
2K
W
8.2K
W
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(guān)PDF資料
PDF描述
951416AGLF 220 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56
951416AFLF 220 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56
951416AGLFT 220 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56
951462YGLFT PROC SPECIFIC CLOCK GENERATOR, PDSO64
951464YFLFT 240 MHz, OTHER CLOCK GENERATOR, PDSO56
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
951413CFLFT 制造商:Integrated Device Technology Inc 功能描述:Programmable PLL Clock Generator Triple 56-Pin SSOP T/R
951413CGLF 制造商:Integrated Device Technology Inc 功能描述:Programmable PLL Clock Generator Triple 56-Pin TSSOP Tube
951413CGLFT 制造商:Integrated Device Technology Inc 功能描述:Programmable PLL Clock Generator Triple 56-Pin TSSOP T/R
951414-2011309-AR-PT 功能描述:集管和線殼 14P BD STCK HDR 2R STRT SMT 10U AU RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點(diǎn)類型:Pin (Male) 節(jié)距:1 mm 位置/觸點(diǎn)數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Brass 觸點(diǎn)電鍍:Gold 制造商:Hirose Connector
951414-2011309-AR-TP 功能描述:集管和線殼 14P BD STCK HDR 2R STRT SMT 10U AU RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點(diǎn)類型:Pin (Male) 節(jié)距:1 mm 位置/觸點(diǎn)數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Brass 觸點(diǎn)電鍍:Gold 制造商:Hirose Connector
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