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MC88915TFN55 Datasheet, PDF (4/20 Pages) Motorola, Inc – LOW SKEW CMOS PLL CLOCK DRIVER | |||
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MC88915TFN55/70/100/133/160
MC88915TFN55 and MC88915TFN70
SYNC INPUT TIMING REQUIREMENTS
Minimum
Symbol
Parameter
TFN70 TFN55 Maximum Unit
tRISE/FALL,SYNC Inputs Rise/Fall Time, SYNC Inputs
From 0.8 to 2.0V
â
â
3.0
ns
tCYCLE, SYNC Inputs
Input Clock Period SYNC Inputs
28.5 1 36.0 1
200 2
ns
Duty Cycle SYNC Inputs Input Duty Cycle SYNC Inputs
50% ±25%
1. These tCYCLE minimum values are valid when âQâ output is fed back and connected to the FEEDBACK pin. This is the configuration shown
in Figure 5b.
2. Information in Table 1 and in Note 3 of the AC specification notes describe this specification and its limits depending on what output is fed back,
and if FREQ_SEL is high or low.
DC ELECTRICAL CHARACTERISTICS
(Voltages Referenced to GND) TA =â40° C to +85° C for 55MHz Version; TA =0° C to +70° C for 70MHz Version; VCC = 5.0 V ± 5%
Symbol
Parameter
Test Conditions
VCC
V
Target Limit
Unit
VIH
Minimum HighâLevel Input
Voltage
Vout = 0.1 V or VCC â 0.1 V
4.75
2.0
V
5.25
2.0
VIL
Maximum LowâLevel Input
Voltage
Vout = 0.1 V or VCC â 0.1 V
4.75
0.8
V
5.25
0.8
VOH
Minimum HighâLevel Output
Voltage
Vin = VIH or VIL
IOH = â36 mA 1
4.75
4.01
V
5.25
4.51
VOL
Maximum LowâLevel Output
Voltage
Vin = VIH or VIL
IOL = 36 mA 1
4.75
0.44
V
5.25
0.44
Iin
ICCT
IOLD
Maximum Input Leakage Current
Maximum ICC/Input
Minimum Dynamic Output Current 3
VI = VCC or GND
VI = VCC â 2.1 V
VOLD = 1.0V Max
5.25
±1.0
µA
5.25
2.0 2
mA
5.25
88
mA
IOHD
VOHD = 3.85V Min
5.25
â88
mA
ICC
Maximum Quiescent Supply
Current (per Package)
VI = VCC or GND
5.25
1.0
mA
IOZ
Maximum 3âState Leakage Current
VI = VIH or VIL;VO = VCC or GND 5.25
±50 4
µA
1. IOL and IOH are 12mA and â12mA respectively for the LOCK output.
2. The PLL_EN input pin is not guaranteed to meet this specification.
3. Maximum test duration is 2.0ms, one output loaded at a time.
4. Specification value for IOZ is preliminary, will be finalized upon âMCâ status.
CAPACITANCE AND POWER SPECIFICATIONS
Symbol
Parameter
Typical Values Unit
Conditions
CIN
CPD
PD1
Input Capacitance
Power Dissipation Capacitance
Power Dissipation @ 50MHz with 50⦠Thevenin Termination
4.5
pF
40
pF
23mW/Output
mW
184mW/Device
VCC = 5.0 V
VCC = 5.0 V
VCC = 5.0 V
T = 25°C
PD2
Power Dissipation @ 50MHz with 50⦠Parallel Termination to GND
57mW/Output
mW
VCC = 5.0 V
456mW/Device
T = 25° C
NOTE: PD1 and PD2 mW/Output numbers are for a âQâ output.
FREQUENCY SPECIFICATIONS (TA =â40° C to +85° C, VCC = 5.0 V ±5%)
Guaranteed Minimum
Symbol
Parameter
TFN70
TFN55
Unit
fmax 1 Maximum Operating Frequency (2X_Q Output)
70
55
MHz
Maximum Operating Frequency (Q0âQ4,Q5 Output)
35
27.5
MHz
1. Maximum Operating Frequency is guaranteed with the part in a phaseâlocked condition, and all outputs loaded with 50⦠terminated to VCC/2.
MOTOROLA
4
TIMING SOLUTIONS
BR1333 â Rev 6
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