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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： | 4/12頁 |
| 文件大小： | 263K |
| 代理商： | MPC9448D |
MPC9448
MOTOROLA
TIMING SOLUTIONS
4
Table 6. AC CHARACTERISTICS
(V
CC
= 3.3V
±
5%, T
A
= --40
°
C to +85
°
C)
a
Symbol
Characteristics
f
ref
Input Frequency
f
MAX
Maximum Output Frequency
V
PP
Peak-to-peak input voltage
V
CMR
b
Common Mode Range
t
P, REF
Reference Input Pulse Width
t
r
, t
f
CCLK Input Rise/Fall Time
t
PLH/HL
t
PLH/HL
t
PLZ, HZ
Output Disable Time
t
PZL, LZ
Output Enable Time
Min
0
0
400
1.3
1.4
Typ
Max
350
350
1000
V
CC
-0.8
Unit
MHz
MHz
mV
V
ns
ns
ns
ns
ns
ns
Condition
PCLK
PCLK
LVPECL
LVPECL
1.0
c
3.6
3.3
11
11
0.8 to 2.0V
Propagation delay
PCLK to any Q
CCLK to any Q
1.6
1.3
t
S
Setup time
CCLK to CLK_STOP
PCLK to CLK_STOP
0.0
0.0
ns
ns
t
H
Hold time
CCLK to CLK_STOP
PCLK to CLK_STOP
1.0
1.5
ns
ns
ps
ns
ps
ps
t
sk(O)
t
sk(PP)
t
SK(P)
Output-to-output Skew
Device-to-device Skew
Output pulse skew
d
150
2.0
300
400
PCLK or CCLK to any Q
Using CCLK
Using PCLK
DC
Q
t
r
, t
f
Output Duty Cycle
Output Rise/Fall Time
f
Q
<170 MHz
45
0.1
50
55
1.0
%
ns
DC
REF
= 50%
0.55 to 2.4V
a. AC characteristics apply for parallel output termination of 50
to V
TT
.
b. V
CMR
(AC) is the crosspoint of the differential input signal. Normal AC operation is obtained when the crosspoint is within the V
CMR
range
and the input swing lies within the V
PP
(AC) specification. Violation of V
CMR
or V
PP
impacts t
PLH/HL
and t
SK(PP)
.
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
|.
Table 7. DC CHARACTERISTICS
(V
CC
= 2.5V
±
5%, T
A
= --40
°
C to +85
°
C)
Symbol
Characteristics
V
IH
Input high voltage
V
IL
Input low voltage
V
PP
Peak-to-peak input voltage
V
CMRa
Common Mode Range
I
IN
Input current
b
V
OH
Output High Voltage
V
OL
Output Low Voltage
Z
OUT
Output impedance
I
CCQ
d
Maximum Quiescent Supply Current
a. V
CMR
(DC) is the crosspoint of the differential input signal. Functional operation is obtained when the crosspoint is within the V
CMR
range
and the input swing lies within the V
PP
(DC) specification.
b. Input pull-up / pull-down resistors influence input current.
c. The MPC9448 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 one 50
series terminated transmission lines at
VCC=2.5V.
d. I
CCQ
is the DC current consumption of the device with all outputs open and the input in its default state or open.
Min
1.7
-0.3
250
1.0
Typ
Max
Unit
V
V
mV
V
μ
A
V
V
mA
Condition
V
CC
+ 0.3
0.7
LVCMOS
LVCMOS
LVPECL
LVPECL
V
IN
=GND or V
IN
=VCC
I
OH
= -15 mA
c
I
OL
= 15 mA
c
PCLK
PCLK
V
CC
-0.7
300
1.8
0.6
19
2.0
All V
CC
Pins
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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