MC88915FN70R2 Freescale Semiconductor, MC88915FN70R2 Datasheet - Page 8

• Manufacturer Part Number: MC88915FN70R2
• Description: IC DRIVER CLK PLL 70MHZ 28-PLCC
• Manufacturer: Freescale Semiconductor
• Type: Clock Driver, Fanout Distribution, Multiplexerr

Specifications of MC88915FN70R2

• Pll: Yes
• Input: TTL
• Output: CMOS, TTL
• Number Of Circuits: 1
• Ratio - Input:output: 3:8
• Differential - Input:output: No/No
• Frequency - Max: 70MHz
• Divider/multiplier: Yes/Yes
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-PLCC
• Frequency-max: 70MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: MC88915FN70R2TR

MC88915
MOTOROLA
SYNC INPUT
(SYNC[1] or
FEEDBACK
Q/2 OUTPUT
SYNC[0])
2X_Q OUTPUT
Q5 OUTPUT
Q0 – Q4
OUTPUTS
INPUT
t SKEWALL
Timing Notes:
The MC88915 aligns rising edges of the FEEDBACK input and SYNC input, therefore the SYNC input does
All skew specs are measured between the V CC /2 crossing point of the appropriate output edges.All skews
If a “Q” output is connected to the FEEDBACK input (this situation is not shown), the “Q” output frequency
not require a 50% duty cycle.
are specified as ‘windows’, not as a
would match the SYNC input frequency, the 2X_Q output would run at twice the SYNC frequency, and the
Q/2 output would run at half the SYNC frequency.
(These waveforms represent the hook–up configuration of Figure 5a on page 9)
Figure 4. Output / Input Switching Waveforms and Timing Diagrams
t
PD
t SKEWf
deviation around a center point.
t CYCLE SYNC INPUT
8
t SKEWr
t CYCLE “Q” OUTPUTS
t SKEWf
TIMING SOLUTIONS
BR1333 — Rev 6
t SKEWR