74FCT38072DCGI

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IDT74FCT38072
3.3V CMOS 1-TO-2 CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
MAY 2010
2004 Integrated Device Technology, Inc. DSC-6595/5c
IDT74FCT38072
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS
1-TO-2 CLOCK DRIVER
DESCRIPTION:
The FCT38072 is a 3.3V clock driver built using advanced CMOS
technology. This low skew clock driver offers 1:2 fanout. The large fanout from
a single input reduces loading on the preceding driver and provides an efficient
clock distribution network. Multiple power and grounds reduce noise. Typical
applications are clock and signal distribution.
FUNCTIONAL BLOCK DIAGRAM
IN
O1
O2
PIN CONFIGURATION
VCC
GND GND
GND
V
CC
IN
O
2
O1
1
2
3
4
5
6
7
8
SOIC
TOP VIEW
FEATURES:
Advanced CMOS Technology
Guaranteed low skew < 100ps (max.)
Very low duty cycle distortion< 350ps (max.)
High speed propagation delay< 3ns (max.)
Very low CMOS power levels
TTL compatible inputs and outputs
1:2 fanout
Maximum output rise and fall time < 1ns (max.)
Low input capacitance: 3pF typical
•VCC = 3.3V ± 0.3V
Inputs can be driven from 3.3V or 5V components
Operating frequency up to 166MHz
Available in SOIC package
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
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INDUSTRIAL TEMPERATURE RANGE
IDT74FCT38072
3.3V CMOS 1-TO-2 CLOCK DRIVER
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.
4. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ICC DHNT + ICCD (fi)
ICC = Quiescent Current
ICC = Power Supply Current for a TTL High Input (VIN = VCC -0.6V)
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
fi = Input Frequency
CAPACITANCE (TA = +25
O
C, f = 1.0MHz)
Symbol Parameter
(1)
Conditions Typ. Max. Unit
CIN Input Capacitance VIN = 0V 3 4 pF
COUT Output Capacitance VOUT = 0V 6 pF
NOTE:
1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names Description
IN Input
Ox Outputs
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol Description Max Unit
VCC Input Power Supply Voltage –0.5 to +4.6 V
VI Input Voltage –0.5 to +5.5 V
VO Output Voltage –0.5 to VCC+0.5 V
TJ Junction Temperature 150 ° C
TSTG Storage Temperature –65 to +165 ° C
NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
POWER SUPPLY CHARACTERISTICS
Symbol Parameter Test Conditions
(1)
Min. Typ.
(2)
Max. Unit
ICCQ Quiescent Power Supply Current VCC = Max. VIN = GND or VCC 0.1 30 µA
ICC Power Supply Current per Input HIGH VCC = Max. VIN = VCC - 0.6V 45 300 µA
ICCD Dynamic Power Supply Current VCC = Max. VIN = VCC 80 120 µA/MHz
per Output
(3)
CL = 15pF VIN = GND
All Outputs Toggling
IC Total Power Supply Current
(4)
VCC = Max. VIN = VCC 60 90
CL = 15pF VIN = GND
All Outputs Toggling VIN = VCC –0.6V 60 90
fi = 133MHz VIN = GND mA
VCC = Max. VIN = VCC 85 115
CL = 15pF VIN = GND
All Outputs Toggling VIN = VCC –0.6V 85 115
fi = 166MHz VIN = GND
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IDT74FCT38072
3.3V CMOS 1-TO-2 CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified
Industrial: TA = -40°C to +85°C, VCC = 3.3V ± 0.3V
Symbol Parameter Test Conditions
(1)
Min. Typ.
(2)
Max. Unit
VIH Input HIGH Level 2 5.5 V
VIL Input LOW Level –0.5 0.8 V
IIH Input HIGH Current VCC = Max. VI = 5.5V ±A
IIL Input LOW Current VCC = Max. VI = GND ±1
VIK Clamp Diode Voltage VCC = Min., IIN = –18mA –0.7 –1.2 V
IODH Output HIGH Current VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V
(3,4)
–45 –75 –180 mA
IODL Output LOW Current VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V
(3,4)
50 92 200 mA
IOS Short Circuit Current VCC = Max., VO = GND
(3,4)
–60 –135 –240 mA
V
OH Output HIGH Voltage VCC = Min. IOH = –12mA 2.4
(5)
3—V
VIN = VIH or VIL IOH = –100µAVCC - 0.2
VOL Output LOW Voltage VCC = Min. IOL = 12mA 0.3 0.5 V
VIN = VIH or VIL IOL = 100µA 0.2
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3, 25°C ambient.
3. This parameter is guaranteed but not tested.
4. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
5. VOH = VCC - 0.6V at rated current.
NOTES:
1. See test circuits and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. tPLH, tPHL, tSK(P), and tSK(O) are production tested. All other parameters guaranteed but not production tested.
4. Propagation delay range indicated by Min. and Max. limit is due to VCC, operating temperature and process parameters. These propagation delay limits do not imply skew.
5. Skew measured between all outputs under identical transitions and load conditions.
6. Skew measured is difference between propagation delay times tPHL and tPLH of same output under identical load conditions.
7. Part to part skew for all outputs given identical transitions and load conditions at identical VCC levels and temperature.
8. Airflow of 1m/s is recommended for frequencies above 133MHz.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
(3,4)
Symbol Parameter Conditions
(1,8)
Min.
(2)
Max. Unit
tPLH Propagation Delay CL = 15pF 0.5 3 ns
tPHL f 166MHz
tR Output Rise Time (0.8V to 2V) 1 ns
tF Output Fall Time (2V to 0.8V) 1 ns
tSK(O) Same device output pin-to-pin skew
(5)
100 ps
tSK(P) Pulse skew
(6)
350 ps
tSK(PP) Part to part skew
(7)
550 ps
f
MAX Input Frequency 166 MH z

74FCT38072DCGI

Mfr. #:
Manufacturer:
IDT
Description:
Clock Drivers & Distribution 3.3V 1:2 Clock Driver
Lifecycle:
New from this manufacturer.
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