參數(shù)資料
型號(hào)： 932S825YGT
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 時(shí)鐘產(chǎn)生/分配
英文描述： 220 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO64
封裝： 6.10 MM, 0.50 MM PITCH, MO-153, TSSOP-64
文件頁(yè)數(shù)： 10/20頁(yè)
文件大?。?/td> 225K
代理商： 932S825YGT
18
ICS932S825
1276F—12/02/08
Fig. 1
Shared Pin Operation -
Input/Output Pins
The I/O pins designated by (input/output) on the
ICS932S825 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.
相關(guān)PDF資料
PDF描述
0550420000 25 A, MODULAR TERMINAL BLOCK, 1 DECK
932S890CKLFT 200 MHz, PROC SPECIFIC CLOCK GENERATOR, QCC72
0550660000 120 A, MODULAR TERMINAL BLOCK, 1 ROW, 1 DECK
9330-10375 POWER/SIGNAL RELAY, DPDT, MOMENTARY, 10A (CONTACT), 28VDC (CONTACT), PANEL MOUNT
9330-4026 POWER/SIGNAL RELAY, DPDT, MOMENTARY, 0.175A (COIL), 28VDC (COIL), 4900mW (COIL), 10A (CONTACT), 28VDC (CONTACT), PANEL MOUNT
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932S890CKLFT 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
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932SQ420BGLF 制造商:Integrated Device Technology Inc 功能描述:SERVER MAIN CLOCK - CK420BQ
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