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IDT74FCT3807/A 3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
3.3V CMOS 1-TO-10 CLOCK DRIVER
IDT74FCT3807/A
FEATURES:
* * * * * * * * * * * *
DESCRIPTION:
0.5 MICRON CMOS Technology Guaranteed low skew < 350ps (max.) Very low duty cycle distortion < 350ps (max.) High speed: propagation delay < 3ns (max.) Very low CMOS power levels TTL compatible inputs and outputs 1:10 fanout Maximum output rise and fall time < 1.5ns (max.) Low input capacitance: 4.5pF typical VCC = 3.3V 0.3V Inputs can be driven from 3.3V or 5V components Available in SSOP, SOIC, and QSOP packages
The FCT3807/A 3.3V clock driver is built using advanced dual metal CMOS technology. This low skew clock driver offers 1:10 fanout. The large fanout from a single input reduces loading on the preceding driver and provides an efficient clock distribution network. The FCT3807/A offers low capacitance inputs with hysteresis for improved noise margins. Multiple power and grounds reduce noise. Typical applications are clock and signal distribution.
FUNCTIONAL BLOCK DIAGRAM
O1
PIN CONFIGURATION
IN
O2
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VCC O10 O9 GND O8 VCC O7 GND O6 O5
GND O1
O3
VCC O2
O4
GND O3
O5 IN O6
VCC O4 GND
O7
SOIC/ SSOP/ QSOP TOP VIEW
O8
O9
O10
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
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c 2001 Integrated Device Technology, Inc.
SEPTEMBER 2001
DSC-4647/2
IDT74FCT3807/A 3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2) VTERM(3) VTERM(4) TSTG IOUT Description Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Storage Temperature DC Output Current Max -0.5 to +4.6 -0.5 to +7 -0.5 to VCC+0.5 -65 to +150 -60 to +60 Unit V V V C mA
CAPACITANCE (TA = +25OC, f = 1.0MHz)
Symbol CIN COUT Parameter(1) Input Capacitance Output Capacitance Conditions VIN = 0V VOUT = 0V Typ. 4.5 5.5 Max. 6 8 Unit pF pF
NOTE: 1. This parameter is measured at characterization but not tested.
NOTES: 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. 2. VCC terminals. 3. Input terminals. 4. Outputs and I/O terminals.
PIN DESCRIPTION
Pin Names IN Ox Clock Inputs Clock Outputs Description
POWER SUPPLY CHARACTERISTICS
Symbol ICC ICCD Parameter Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(4) Test Conditions(1) VCC = Max. VIN = VCC -0.6V(3) VCC = Max. Input toggling 50% Duty Cycle Outputs Open IC Total Power Supply Current(6) VCC = Max. Input toggling 50% Duty Cycle Outputs Open fi = 50MHz
NOTES: 1. 2. 3. 4. 5. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. Typical values are at VCC = 3.3V, +25C ambient. Per TTL driven input (VIN = VCC -0.6V); all other inputs at VCC or GND. This parameter is not directly testable, but is derived for use in Total Power Supply calculations. Values for these conditions are examples of the IC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fi) ICC = Quiescent Current (ICCL, ICCH and ICCZ) 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 All currents are in milliamps and all frequencies are in megahertz.
Min. -- VIN = VCC VIN = GND --
Typ.(2) 10 0.31
Max. 30 0.45
Unit A mA/ MHz
VIN = VCC VIN = GND VIN = VCC -0.6V VIN = GND
--
15.5
22.8
mA
--
15.5
22.8
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IDT74FCT3807/A 3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified Commercial: TA = 0C to +75C, Industrial: TA = -40C to +85C, VCC = 3.3V 0.3V
Symbol VIH VIL IIH IIL IOZH IOZL VIK IODH IODL VOH VOL Parameter Input HIGH Level (Input pins) Input HIGH Level (I/O pins) Input LOW Level (Input and I/O pins) Input HIGH Current (Input pins) Input HIGH Current (I/O pins) Input LOW Current (Input pins) Input LOW Current (I/O pins) High Impedence Output Current (3-State Output Pins) Clamp Diode Voltage Output HIGH Current Output LOW Current Output HIGH Voltage Output LOW Voltage VCC = Min., IIN = -18mA VCC = 3.3V, VIN = VIH or VIL, VO = VCC = Min. VIN = VIH or VIL VCC = Min. VIN = VIH or VIL IOFF IOS VH ICCL ICCH ICCZ
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, +25C ambient. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. This parameter is guaranteed but not tested. 5. VOH = Vcc - 0.6V at rated current.
Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VCC = Max. VCC = Max. VI = 5.5V VI = VCC VI = GND VI = GND VO = VCC VO = GND 1.5V(3)
Min. 2 2 -0.5 -- -- -- -- -- -- -- -36 50 VCC-0.2 2.4(5) -- -- -- -- -60 -- --
Typ. -- -- -- -- -- -- -- -- -- -0.7 -60 90 -- 3 -- 0.2 0.3 -- -135 150 0.1
Max. 5.5 VCC + 0.5 0.8 1 1 1 1 1 1 -1.2 -110 200 -- -- 0.2 0.4 0.5 1 -240 -- 10
Unit V V A
A V mA mA V
VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V(3) IOH = -0.1mA IOH = -8mA IOL = 0.1mA IOL = 16mA IOL = 24mA
V A mA mV A
Input Power Off Leakage Short Circuit Current(4) Input Hysteresis Quiescent Power Supply Current
VCC = 0V, VIN = 4.5V VCC = Max., VO = -- VCC = Max. VIN = GND or VCC GND(3)
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IDT74FCT3807/A 3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - COMMERCIAL(3,4)
FCT3807 Symbol tPLH tPHL tR tF tSK(O) tSK(P) tSK(T) Parameter Propagation Delay Output Rise Time Output Fall Time Output skew: skew between outputs of same package (same transition) Pulse skew: skew between opposite transitions of same output (|tPHL -- tPLH|) Package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade Conditions(1) 50 to VCC/2 CL = 10pF (See figure 1) or 10 AC termination, CL = 50pF (See figure 2) f 100MHz Outputs connected in groups of two FCT3807 Symbol tPLH tPHL tR tF tSK(O) tSK(P) tSK(T) Parameter Propagation Delay Output Rise Time Output Fall Time Output skew: skew between outputs of same package (same transition) Pulse skew: skew between opposite transitions of same output (|tPHL -- tPLH|) Package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade FCT3807 Symbol tPLH tPHL tR tF tSK(O) tSK(P) tSK(T) Parameter Propagation Delay Output Rise Time Output Fall Time Output skew: skew between outputs of same package (same transition) Pulse skew: skew between opposite transitions of same output (|tPHL -- tPLH|) Package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade
NOTES: 1. See test circuits and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. tPLH, tPHL, tSK(t) 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.
FCT3807A Max. 3.5 1.5 1.5 0.5 0.5 0.9 Min.(2) 1.5 -- -- -- -- -- Max. 3 1.5 1.5 0.35 0.35 0.65 Unit ns ns ns ns ns ns
Min.(2) 1.5 -- -- -- -- --
FCT3807A Max. 4.5 1.5 1.5 0.5 0.5 1 Min.(2) 1.5 -- -- -- -- -- Max. 4 1.5 1.5 0.35 0.35 0.75 Unit ns ns ns ns ns ns
Conditions(1) CL = 30pF f 67MHz (See figure 3)
Min.(2) 1.5 -- -- -- -- --
FCT3807A Max. 4.8 1.5 1.5 0.5 0.5 1 Min.(2) 1.5 -- -- -- -- -- Max. 4.3 1.5 1.5 0.35 0.35 0.75 Unit ns ns ns ns ns ns
Conditions(1) CL = 50pF f 40MHz (See figure 4)
Min.(2) 1.5 -- -- -- -- --
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IDT74FCT3807/A 3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - INDUSTRIAL(3,4)
FCT3807 Symbol tPLH tPHL tR tF tSK(O) tSK(P) tSK(T) Parameter Propagation Delay Output Rise Time Output Fall Time Output skew: skew between outputs of same package (same transition) Pulse skew: skew between opposite transitions of same output (|tPHL -- tPLH|) Package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade Conditions(1) 50 to VCC/2 CL = 10pF (See figure 1) or 50 AC termination, CL = 10pF (See figure 2) f 100MHz Outputs connected in groups of two FCT3807 Symbol tPLH tPHL tR tF tSK(O) tSK(P) tSK(T) Parameter Propagation Delay Output Rise Time Output Fall Time Output skew: skew between outputs of same package (same transition) Pulse skew: skew between opposite transitions of same output (|tPHL -- tPLH|) Package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade FCT3807 Symbol tPLH tPHL tR tF tSK(O) tSK(P) tSK(T) Parameter Propagation Delay Output Rise Time Output Fall Time Output skew: skew between outputs of same package (same transition) Pulse skew: skew between opposite transitions of same output (|tPHL -- tPLH|) Package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade
NOTES: 1. See test circuits and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. tPLH, tPHL, tSK(t) 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.
FCT3807A Max. 3.5 1.5 1.5 0.6 0.6 0.9 Min.(2) 1.5 -- -- -- -- -- Max. 3 1.5 1.5 0.45 0.45 0.65 Unit ns ns ns ns ns ns
Min.(2) 1.5 -- -- -- -- --
FCT3807A Max. 4.5 1.5 1.5 0.6 0.6 1 Min.(2) 1.5 -- -- -- -- -- Max. 4 1.5 1.5 0.45 0.45 0.75 Unit ns ns ns ns ns ns
Conditions(1) CL = 30pF f 67MHz (See figure 3)
Min.(2) 1.5 -- -- -- -- --
FCT3807A Max. 4.8 1.5 1.5 0.6 0.6 1 Min.(2) 1.5 -- -- -- -- -- Max. 4.3 1.5 1.5 0.45 0.45 0.75 Unit ns ns ns ns ns ns
Conditions(1) CL = 50pF f 40MHz (See figure 4)
Min.(2) 1.5 -- -- -- -- --
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IDT74FCT3807/A 3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
TEST CIRCUITS
VCC
VCC 100
VCC
VIN Pulse Generator RT D.U.T.
VOUT Pulse Generator 10pF 100
VIN D.U.T.
VOUT
50 RT 220pF
10pF
Figure 1. ZO = 50 to VCC/2, CL = 10pF
Figure 2. ZO = 50 AC Termination, CL = 10pF
The capacitor value for ac termination is determined by the operating frequency. For very low frequencies a higher capacitor value should be selected.
VCC
VCC
VIN Pulse Generator RT D.U.T.
VOUT Pulse Generator 30pF CL
VIN D.U.T.
VOUT
50pF RT CL
Figure 3. CL = 30pF Circuit
Figure 3. CL = 50pF Circuit
6V VCC GND
500 VIN Pulse Generator RT D.U.T. 50pF CL 500 VOUT
ENABLE AND DISABLE TIME SWITCH POSITION
Test Disable LOW Enable LOW Disable HIGH Enable HIGH Switch 6V GND
Figure 5. Enable and Disable Time Circuit
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
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IDT74FCT3807/A 3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
TEST WAVEFORMS
3V 1.5V INPUT tPLH tPHL VOH 2.0V OUTPUT tR tF 0.8V 1.5V VOL OUTPUT 2 tPLH2 tPHL2 OUTPUT 1 tSK(o) tSK(o) 0V INPUT 3V 1.5V 0V VOH 1.5V VOL VOH 1.5V VOL
tPLH1
tPHL1
tSK(o) = |tPLH2 - tPLH1| or |tPHL2 - tPHL1|
Package Delay
Output Skew - tSK(O)
3V 3V 1.5V INPUT tPLH tPHL VOH 1.5V OUTPUT tSK(p) = |tPHL - tPLH| VOL PACKAGE 2 OUTPUT tPLH2 tPHL2
or
INPUT
tPLH1
tPHL1
1.5V 0V VOH 1.5V VOL
0V PACKAGE 1 OUTPUT tSK(t) tSK(t)
VOH 1.5V VOL
tSK(t) = |tPLH2 - tPLH1|
|tPHL2 - tPHL1|
Pulse Skew - tSK(P)
Package Skew - tSK(T)
Package 1 and Package 2 are same device type and speed grade
ENABLE
DISA BLE 3V
CONTROL INPUT t OUTPUT NORM ALLY LOW
PZL
1.5V 0V t 3.5V 1.5V 0.3V t 1.5V 0V 0V
PHZ PLZ
SW ITCH CLOSE D t
PZH
3.5V V OL V OH
OUTPUT NORM ALLY HIGH
SW ITCH OPEN
0.3V
Enable and Disable Times
NOTES: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH 2. Pulse Generator for All Pulses: f 1.0MHz; tF 2.5ns; tR 2.5ns
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IDT74FCT3807/A 3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT74FCT XXXX Device Type X Package X Temp. Range
Blank I
Commercial (0C to +70C) Industrial (-40C to +85C)
SO PY Q 3807 3807A
Small Outline IC Shrink Small Outline IC Quarter-size Small Outline IC 1-to-10 3.3V Clock Driver
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for Tech Support: logichelp@idt.com (408) 654-6459
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