參數(shù)資料
型號(hào)： MPC740ARX266TX
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 266 MHz, RISC PROCESSOR, CBGA255
封裝： 21 X 21 MM, 3 MM HEIGHT, 1.27 MM PITCH, CERAMIC, BGA-255
文件頁(yè)數(shù)： 27/44頁(yè)
文件大小： 558K
代理商： MPC740ARX266TX
MPC750A RISC Microprocessor Hardware Specications
33
System Design Information
Table 18 provides sample core-to-L2 frequencies.
1.8.2 PLL Power Supply Filtering
The AVdd and L2AVdd power signals are provided on the MPC750 to provide power to the clock
generation phase-locked loop and L2 cache delay-locked loop respectively. To ensure stability of the
internal clock, the power supplied to the AVdd input signal should be ltered using a circuit similar to the
one shown in Figure 18. The circuit should be placed as close as possible to the AVdd pin to ensure it lters
out as much noise as possible. An identical but separate circuit should be placed as close as possible to the
L2AVdd pin.
Figure 18. PLL Power Supply Filter Circuit
1.8.3 Decoupling Recommendations
Due to the MPC750’s dynamic power management feature, large address and data buses, and high
operating frequencies, the MPC750 can generate transient power surges and high frequency noise in its
power supply, especially while driving large capacitive loads. This noise must be prevented from reaching
other components in the MPC750 system, and the MPC750 itself requires a clean, tightly regulated source
of power. Therefore, it is recommended that the system designer place at least one decoupling capacitor at
each Vdd and OVdd pin (and L2OVdd for the 360 CBGA) of the MPC750. It is also recommended that
these decoupling capacitors receive their power from separate Vdd, OVdd, and GND power planes in the
PCB, utilizing short traces to minimize inductance.
Table 18. Sample Core-to-L2 Frequencies
Core Frequency in
MHz
÷1
÷1.5
÷2
÷2.5
÷3
200
133.3
100
80
—
208.3
208
138.6
104
83.3
—
210
140
105
84
—
220
146.6
110
88
—
225
150
112.5
90
—
233.3
155.5
116.6
93.3
—
240
160
120
96
80
266
177.3
133
106.4
88.6
Note: The core and L2 frequencies are for reference only. Some congurations may select core or L2
frequencies which are not useful, not supported, or not tested for by the MPC750; see
Section 1.4.2.4, “L2 Clock AC Specications,” for valid L2CLK frequencies. The L2CR[L2SL]
bit should be set for L2CLK frequencies less than 110 MHz.
Vdd
AVdd (or L2AVdd)
10
10 F
0
.1 F
GND
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
AR
CH
IVE
D B
Y F
RE
ES
CA
LE
SE
MI
CO
ND
UC
TO
R,
INC
.
相關(guān)PDF資料
PDF描述
MPC7410RX450LD 32-BIT, 450 MHz, RISC PROCESSOR, CBGA360
MPC7410RX400LE 32-BIT, 400 MHz, RISC PROCESSOR, CBGA360
MPC7410RX400LD 32-BIT, 400 MHz, RISC PROCESSOR, CBGA360
MPC7410RX500LC 32-BIT, 500 MHz, RISC PROCESSOR, CBGA360
MPC7410HX450LE 32-BIT, 450 MHz, RISC PROCESSOR, CBGA360
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC7410 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:RISC Microprocessor Hardware Specifications Addendum
MPC7410_1 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:RISC Microprocessor Hardware Specifications
MPC7410_10 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:RISC Microprocessor Hardware Specifications Addendum
MPC74-103J 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Metal Plate Cement Resistors
MPC74-103K 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Metal Plate Cement Resistors
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*