MPC9449 查看數據表（PDF） - Motorola => Freescale
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MPC9449 Datasheet PDF : 12 Pages
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Freescale Semiconductor, Inc.
MPC9449
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
VIL
Input low voltage
1.7
VCC + 0.3
V
LVCMOS
-0.3
0.7
V LVCMOS
VPP
Peak-to-peak input voltage
PCLK, PCLK
250
mV LVPECL
VCMRa
VOH
Common Mode Range
Output High Voltage
PCLK, PCLK
1.0
1.8
VCC-0.6
V LVPECL
V
IOH=-15 mAb
VOL
ZOUT
IIN
Output Low Voltage
Output impedance
Input Currentc
17 - 20
0.6
±200
V
IOL= 15 mA
W
µA VIN=VCC or GND
ICC
Maximum Quiescent Supply Current
10
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 The MPC9449 is capable of driving 50Ω transmission lines on the incident edge. Each output drives one 50Ω parallel terminated
transmission line to a termination voltage of VTT.
c Inputs have pull-down or pull-up resistors affecting the input current.
Table 8: AC CHARACTERISTICS (VCC = 2.5V ± 5%, TA = –40°C to 85°C)a
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
VPP
Peak-to-peak input voltage
PCLK, PCLK
400
1000
mV LVPECL
VCMRb
fmax
fref
tP, REF
tr, tf
tsk(O)
Common Mode Range
Output frequency
Input Frequency
Reference Input Pulse Width
CCLK Input Rise/Fall Time
Output-to-output Skew
same frequency
different frequencies
PCLK, PCLK
1.2
0
0
1.5
Qa outputs
Qb outputs
Qc outputs
Qd outputs
All outputs
All outputs
VCC-0.6
200
200
1.0
50
50
50
100
200
300
V
MHz
MHz
ns
ns
ps
ps
ps
ps
ps
ps
LVPECL
0.7 to 1.7V
tsk(PP) Device-to-device Skew
5.0
ns
tSK(P)
Output Pulse Skew
350
ps DCREF = 50%
tPLH, HL Propagation delay
CCLK0 or CCLK1 to any Q
1.0
3.5
7.0
ns
PCLK to any Q
1.0
3.5
7.0
ns
tPLZ, HZ Output Disable Time
OE to any Q
11
ns
tPZL, LZ
tr, tf
Output Enable Time
Output Rise/Fall Timec
OE to any Q
0.1
11
ns
1.0
ns 0.6 to 1.8V
tJIT(CC) Cycle-to-cycle jitter
RMS (1 σ)
TBD
ps
a AC characteristics apply for parallel output termination of 50Ω 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 propagation delay.
c An input rise/fall time greater than that specified may be used, but AC characteristics are not guaranteed under such a condition.
For More Informa5tion On This Product,
Go to: www.freescale.com
MOTOROLA
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