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參數(shù)資料
| 型號： | MPC9447ACR2 |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 9447 SERIES, LOW SKEW CLOCK DRIVER, 9 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封裝： | PLASTIC, LQFP-32 |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 296K |
| 代理商： | MPC9447ACR2 |
6
MPC9447
MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA
575
GND
Q2
VCC
Q1
GND
Q0
VCC
GND
Q6
VCC
Q7
GND
Q8
VCC
GND
Q3
VCC
Q4
GND
Q5
VCC
GND
CLK_SEL
CCLK0
CCLK1
CLK_ST
OP
OE
VCC
GND
25
26
27
28
29
30
31
32
15
14
13
12
11
10
9
1234567
8
24
23
22
21
20
19
18
17
16
MPC9447
Figure 1. Logic Diagram
Figure 2. 32–Lead Pinout (Top View)
0
1
CCLK0
CCLK1
CLK_SEL
CLK_STOP
OE
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
VCC
CLK
STOP
SYNC
(all input resistors have a value of 25kW)
Table 1. Function Table
Control
Default
0
1
CLK_SEL
1
CLK0 input selected
CLK1 input selected
OE
1
Outputs disabled (high–impedance state)a
Outputs enabled
CLK_STOP
1
Outputs synchronously stopped in logic low state
Outputs active
a. OE = 0 will high–impedance tristate all outputs independent on CLK_STOP
Table 2. Pin Configuration
Pin
I/O
Type
Function
CCLK0
Input
LVCMOS
Clock signal input
CCLK1
Input
LVCMOS
Alternative clock signal input
CLK_SEL
Input
LVCMOS
Clock input select
CLK_STOP
Input
LVCMOS
Clock output enable/disable
OE
Input
LVCMOS
Output enable/disable (high–impedance tristate)
Q0–8
Output
LVCMOS
Clock outputs
GND
Supply
Ground
Negative power supply (GND)
VCC
Supply
VCC
Positive power supply for I/O and core. All VCC pins must be
connected to the positive power supply for correct operation
Table 3. General Specifications
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
VTT
Output termination voltage
VCC ÷ 2
V
MM
ESD protection (Machine model)
200
V
HBM
ESD protection (Human body model)
2000
V
LU
Latch-up immunity
200
mA
CPD
Power dissipation capacitance
10
pF
Per output
CIN
Input capacitance
4.0
pF
Inputs
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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| MPC9447D | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:3.3V/2.5V 1:9 LVCMOS Clock Fanout Buffer |
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| MPC9448AC | 功能描述:時鐘緩沖器 3.3V 900MHz Clock Generator 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 |
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