參數(shù)資料
型號： MPC9446
廠商： Motorola, Inc.
英文描述： 2.5V and 3.3V LVCMOS Clock Fanout Buffer
中文描述： 2.5V和3.3V的LVCMOS時鐘扇出緩沖器
文件頁數(shù)： 4/12頁
文件大小： 217K
代理商： MPC9446
MPC9446
MOTOROLA
TIMING SOLUTIONS
4
Table 6: DC CHARACTERISTICS
(V
CC
= V
CCA
= V
CCB
= V
CCC
= 3.3V
±
5%, T
A
= --40
°
C to +85
°
C)
Symbol
Characteristics
V
IH
Input High Voltage
V
IL
Input Low Voltage
I
IN
V
OH
Output High Voltage
V
OL
Output Low Voltage
Min
2.0
-0.3
Typ
Max
Unit
V
V
μ
A
V
V
V
Condition
V
CC
+ 0.3
0.8
200
LVCMOS
LVCMOS
V
IN
=GND or V
IN
=VCC
I
OH
=-24 mA
b
I
OL
= 24mA
b
I
OL
= 12mA
Input Current
a
2.4
0.55
0.30
Z
OUT
I
CCQc
a. Input pull-up / pull-down resistors influence input current.
b. The MPC9446 is capable of driving 50
transmission lines on the incident edge. Each output drives one 50
parallel terminated transmission
line to a termination voltage of V
TT
. Alternatively, the device drives up to two 50
series terminated transmission lines.
c. I
CCQ
is the DC current consumption of the device with all outputs open and the input in its default state or open.
Output Impedance
Maximum Quiescent Supply Current
14 - 17
mA
2.0
All V
CC
Pins
Table 7: AC CHARACTERISTICS
(V
CC
= V
CCA
= V
CCB
= V
CCC
= 3.3V
±
5%, T
A
= --40
°
C to +85
°
C)
a
Symbol
Characteristics
f
ref
Input Frequency
f
MAX
Maximum Output Frequency
÷
1 output
÷
2 output
t
P, REF
Reference Input Pulse Width
t
r
, t
f
CCLK Input Rise/Fall Time
t
PLH
t
PHL
CCLK0,1 to any Q
t
PLZ, HZ
Output Disable Time
t
PZL, LZ
Output Enable Time
t
sk(O)
Output-to-output Skew
Within one bank
Any output bank, same output divider
Any output, Any output divider
Min
0
0
0
1.4
Typ
Max
250
b
250
b
125
Unit
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ps
ps
ps
Condition
FSELx=0
FSELx=1
1.0
c
4.45
4.2
10
10
150
200
350
0.8 to 2.0V
Propagation delay
CCLK0,1 to any Q
2.2
2.2
2.8
2.8
t
sk(PP)
t
SK(P)
Device-to-device Skew
Output pulse skew
d
2.25
200
ns
ps
DC
Q
Output Duty Cycle
÷
1 output
÷
2 output
47
45
0.1
50
50
53
55
1.0
%
%
ns
DC
REF
= 50%
DC
REF
= 25%-75%
0.55 to 2.4V
t
r
, t
f
Output Rise/Fall Time
a. AC characteristics apply for parallal output termination of 50
to V
TT
.
b. The MPC9446 is functional up to an input and output clock frequency of 350 MHz and is characterized up to 250 MHz.
c. Violation of the 1.0 ns maximum input rise and fall time limit will affect the device propagation delay, device-to-device skew, reference input
pulse width, output duty cycle and maximum frequency specifications.
d. Output pulse skew is the absolute difference of the propagation delay times: | t
pLH
- t
pHL
|.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC9446AC 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(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
MPC9446ACR2 功能描述:時鐘驅(qū)動器及分配 FSL 1-10 LVCMOS Fanout Buffer RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel
MPC9446FA 功能描述:時鐘緩沖器 2.5 3.3V 250MHz 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
MPC9446FAR2 功能描述:時鐘驅(qū)動器及分配 FSL 1-10 LVCMOS Fanout Buffer RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel
MPC9447 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:3.3V/2.5V 1:9 LVCMOS Clock Fanout Buffer
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