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參數(shù)資料
| 型號： | MPC9448ACR2 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 9448 SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封裝： | PLASTIC, LQFP-32 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大小： | 395K |
| 代理商： | MPC9448ACR2 |
6
MPC9448
MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA
584
Table 6: AC CHARACTERISTICS (VCC = 3.3V ±5%, TA = –40°C to +85°C)a
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
fref
Input Frequency
0
350
MHz
fMAX
Maximum Output Frequency
0
350
MHz
VPP
Peak-to-peak input voltage
PCLK
400
1000
mV
LVPECL
VCMRb
Common Mode Range
PCLK
1.3
VCC-0.8
V
LVPECL
tP, REF
Reference Input Pulse Width
1.4
ns
tr, tf
CCLK Input Rise/Fall Time
1.0c
ns
0.8 to 2.0V
tPLH/HL
Propagation delay
PCLK to any Q
CCLK to any Q
1.6
1.3
3.6
3.3
ns
tPLZ, HZ
Output Disable Time
11
ns
tPZL, LZ
Output Enable Time
11
ns
tS
Setup time
CCLK to CLK_STOP
PCLK to CLK_STOP
0.0
ns
tH
Hold time
CCLK to CLK_STOP
PCLK to CLK_STOP
1.0
1.5
ns
tsk(O)
Output-to-output Skew
150
ps
tsk(PP)
Device-to-device Skew
PCLK or CCLK to any Q
2.0
ns
tSK(P)
DCQ
Output pulse skewd
Using CCLK
Using PCLK
Output Duty Cycle
fQ<170 MHz
45
50
300
400
55
ps
%
DCREF = 50%
tr, tf
Output Rise/Fall Time
0.1
1.0
ns
0.55 to 2.4V
a. AC characteristics apply for parallel output termination of 50
to VTT.
b. VCMR (AC) is the crosspoint of the differential input signal. Normal AC operation is obtained when the crosspoint is within the VCMR range
and the input swing lies within the VPP (AC) specification. Violation of VCMR or VPP impacts tPLH/HL and tSK(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: | tpLH - tpHL |.
Table 7: DC CHARACTERISTICS (VCC = 2.5V ±5%, TA = –40°C to +85°C)
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
VIH
Input high voltage
1.7
VCC + 0.3
V
LVCMOS
VIL
Input low voltage
-0.3
0.7
V
LVCMOS
VPP
Peak-to-peak input voltage
PCLK
250
mV
LVPECL
VCMRa
Common Mode Range
PCLK
1.0
VCC-0.7
V
LVPECL
IIN
Input currentb
300
A
VIN=GND or VIN=VCC
VOH
Output High Voltage
1.8
V
IOH= -15 mAc
VOL
Output Low Voltage
0.6
V
IOL= 15 mAc
ZOUT
Output impedance
19
W
ICCQd
Maximum Quiescent Supply Current
2.0
mA
All VCC Pins
a. VCMR (DC) is the crosspoint of the differential input signal. Functional operation is obtained when the crosspoint is within the VCMR range
and the input swing lies within the VPP (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 transmis-
sion line to a termination voltage of VTT. Alternatively, the device drives one 50 series terminated transmission lines at VCC=2.5V.
d. ICCQ is the DC current consumption of the device with all outputs open and the input in its default state or open.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相關代理商/技術參數(shù) |
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|---|---|
| MPC9448D | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:3.3V/2.5V LVCMOS 1:12 Clock Fanout Buffer |
| 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(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 |
| 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(shù):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(shù):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 |
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