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參數(shù)資料
| 型號(hào)： | MPC905 |
| 廠商： | Motorola, Inc. |
| 英文描述： | 1:6 PCI CLOCK GENERATOR/ FANOUT BUFFER |
| 中文描述： | 1:6的PCI時(shí)鐘發(fā)生器/扇出緩沖器 |
| 文件頁(yè)數(shù)： | 1/6頁(yè) |
| 文件大小： | 91K |
| 代理商： | MPC905 |
SEMICONDUCTOR TECHNICAL DATA
1
REV 3
Motorola, Inc. 1996
10/96
! !
The MPC903, MPC904 and MPC905 are six output clock generation
devices targeted to provide the clocks required in a 3.3V or 5.0V PCI
environment. The device operates from a 3.3V supply and can interface
to either a TTL input or an external crystal. The inputs to the device can be
driven with 5.0V when the VCC is at 3.3V. The outputs of the
MPC903/904/905 meet all of the specifications of the PCI standard. The
three devices are identical except in the function of the Output Enables.
Six Low Skew Outputs
Synchronous Output Enables for Power Management
Low Voltage Operation
XTAL Oscillator Interface
16-Lead SOIC Package
5.0V Tolerant Enable Inputs
The MPC903/904/905 device is targeted for PCI bus or processor bus
environments with up to 12 clock loads. Each of the six outputs on the
MPC903/904/905 can drive two series terminated 50
transmission
lines. This capability effectively makes the MPC903/904/905 a 1:12
fanout buffer.
The MPC903 offers two synchronous enable inputs to allow users
flexibility in developing power management features for their designs.
Both enable signals are active HIGH inputs. A logic ‘0’ on the Enable1
input will pull all of the outputs into the logic ‘0’ state and shut down the
internal oscillator for a zero power sleep state. A logic ‘0’ on the Enable2
input will disable only the BCLK5 output. The Enable2 input can be used to disable any high power device for system power
savings during periods of inactivity. Both enable inputs are synchronized internal to the chip so that the output disabling will
happen only when the outputs are already LOW. This feature guarantees no runt pulses will be generated during enabling and
disabling. Note that when the MPC903 is re-enabled via the Enable1 pin, the user must allow for the oscillator to regain stability.
Thus, the re-enabling of the chip cannot occur instantaneously. The MPC904 and MPC905 Enable functions are slightly different
than the 903 and are outlined in the function tables on the following page.
BCLK0
BCLK1
BCLK2
BCLK3
BCLK4
BCLK5
XTAL_IN
XTAL_OUT
Enable1
Enable2
GND (3)
VDD (3)
Pinout: 16-Lead Plastic Package
(Top View)
16
1
15
2
14
3
13
4
XTAL_IN
Enable1
BCLK5
VDD3
XTAL_OUT
Enable2
GND1
BCLK0
12
5
11
6
10
7
9
8
BCLK4
GND3
BCLK3
VDD2
VDD1
BCLK1
GND2
BCLK2
SYNCHRONIZE
SYNCHRONIZE
1:6 PCI
CLOCK GENERATOR/
FANOUT BUFFER
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751B-05
1
16
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC905D | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 2.5 3.3V 250MHz Clock Generator 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 |
| MPC905DR2 | 功能描述:IC CLK BUFFER 1:6 100MHZ 16-SOIC RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘緩沖器，驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復(fù)用器 電路數(shù):1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無(wú) 輸入:CML，LVCMOS，LVPECL，LVTTL，SSTL 輸出:LVCMOS，LVTTL 頻率 - 最大:250MHz 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6 |
| MPC905EF | 功能描述:時(shí)鐘緩沖器 FSL 1-6 PCI Clock Gen./Fanout Buffer RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel |
| MPC905EFR2 | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 FSL 1-6 PCI Clock Gen./Fanout Buffer 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 |
| MPC909 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:LOW VOLTAGE CMOS 1:18 CLOCK DISTRIBUTION CHIP |
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