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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
O 10
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
1
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, +25°C 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 µA mA/ MHz
VIN = VCC VIN = GND VIN = VCC –0.6V VIN = GND
—
15.5
22.8
mA
—
15.5
22.8
2
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 = 0°C to +75°C, Industrial: TA = -40°C to +85°C, 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 .