MPC940LFA Freescale Semiconductor, MPC940LFA Datasheet - Page 6

• Manufacturer Part Number: MPC940LFA
• Description: IC CLOCK DISTRIB LV 1:18 32-LQFP
• Manufacturer: Freescale Semiconductor
• Type: Clock Distributionr

Specifications of MPC940LFA

• Input: LVCMOS, LVPECL
• Output: LVCMOS
• Frequency - Max: 250MHz
• Voltage - Supply: 2.375 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 32-LQFP
• Frequency-max: 250MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MPC940L
MOTOROLA
The time from the PLL controlled edge to the non controlled
edge, divided by the time between PLL controlled edges,
expressed as a percentage
Figure 3. Propagation delay (t PD ) test reference
PECL_CLK
PECL_CLK
Figure 7. Output Transition Time Test Reference
t F
Q
Figure 5. Output Duty Cycle (DC)
t P
Figure 1. LVCMOS_CLK MPC940L AC test reference for V cc = 3.3V and V cc = 2.5V
Figure 2. PECL_CLK MPC940L AC test reference for V cc = 3.3V and V cc = 2.5V
Pulse Generator
Differential
Z = 50
Generator
Z = 50
t PD
T 0
Pulse
V PP
W
DC = t P /T 0 x 100%
W
Freescale Semiconductor, Inc.
t R
For More Information On This Product,
Z O = 50
V CC =3.3V
V TT
0.55
2.4
Z O = 50
R T = 50
R T = 50
V CC
V CC
GND
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V CC =2.5V
B
2
1.8V
0.6V
V TT
V CMR
V CC
V CC
GND
MPC940L DUT
MPC940L DUT
B
Figure 4. LVCMOS Propagation delay (t PD ) test reference
6
2
LVCMOS_CLK
Q
Figure 8. Input Transition Time Test Reference
Figure 6. Output–to–output Skew t SK(O)
t F
The pin–to–pin skew is defined as the worst case difference in
propagation delay between any two similar delay path within a
single device
Z O = 50
Z O = 50
t PD
R T = 50
R T = 50
t SK(O)
V TT
V TT
t R
V CC =3.3V
TIMING SOLUTIONS
2.0
0.8
DL207 — Rev 0
V CC =2.5V
V CC
V CC
GND
V CC
V CC
GND
V CC
V CC
GND
V OH
V CC
GND
1.7V
0.7V
B
B
B
B
2
2
2
2