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參數資料
| 型號： | MPC9448D |
| 廠商： | Motorola, Inc. |
| 英文描述： | 3.3V/2.5V LVCMOS 1:12 Clock Fanout Buffer |
| 中文描述： | 3.3V/2.5V的LVCMOS 1:12時鐘扇出緩沖器 |
| 文件頁數： | 8/12頁 |
| 文件大小： | 263K |
| 代理商： | MPC9448D |
MPC9448
MOTOROLA
TIMING SOLUTIONS
8
T
J,MAX
should be selected according to the MTBF system
requirements and Table 9. R
thja
can be derived from Table 10.
The R
thja
represent data based on 1S2P boards, using 2S2P
boards will result in a lower thermal impedance than
indicated below.
Table 10. Thermal package impedance of the 32LQFP
Convection, LFPM
R
thja
(1P2S
board),
°
C/W
R
thja
(2P2S
board),
°
C/W
Still air
100 lfpm
200 lfpm
300 lfpm
400 lfpm
500 lfpm
86
76
71
68
66
60
61
56
54
53
52
49
If the calculated maximum frequency is below 350 MHz, it
becomes the upper clock speed limit for the given application
conditions. The following eight derating charts describe the
safe frequency operation range for the MPC9448. The charts
were calculated for a maximum tolerable die junction
temperature of 110
°
C (120
°
C), corresponding to an
estimated MTBF of 9.1 years (4 years), a supply voltage of
3.3V and series terminated transmission line or capacitive
loading. Depending on a given set of these operating
conditions and the available device convection a decision on
the maximum operating frequency can be made.
Figure 7. Maximum MPC9448 frequency, V
CC
= 3.3V, MTBF
9.1 years, driving series terminated transmission lines,
2s2p board
Figure 8. Maximum MPC9448 frequency, V
CC
= 3.3V,
MTBF 9.1 years, 4 pF load per line, 2s2p board
Figure 9. No maximum frequency limitation for V
CC
= 3.3V,
MTBF 4 years, driving series terminated transmission
lines, 2s2p board
Figure 10. Maximum MPC9448 frequency, V
CC
=
3.3V, MTBF 4 years, 4 pF load per line, 2s2p board
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MPC9448FA | 功能描述:時鐘緩沖器 2.5 3.3V 275MHz Clock Generator RoHS:否 制造商:Texas Instruments 輸出端數量: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 |
| MPC9448FAR2 | 功能描述:IC CLOCK BUFFER MUX 2:12 32-LQFP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器，驅動器 系列:- 標準包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復用器 電路數:1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無 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 供應商設備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6 |
| MPC9449 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:3.3V / 2.5 V 1:15 PECL/LVCMOS |
| MPC9449AC | 功能描述:IC CLK BUFF DVDR MUX 3:15 52LQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器，驅動器 系列:- 標準包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復用器 電路數:1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無 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 供應商設備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6 |
| MPC9449AE | 功能描述:時鐘緩沖器 FSL 1-15 LVPECL/LVCM OS to LVCMOS Fanout RoHS:否 制造商:Texas Instruments 輸出端數量: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 |
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