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:
•
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•
•
•
•
•
•
•
•
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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
V
CC
= 3.3V ± 0.3V
Inputs can be driven from 3.3V or 5V components
Available in SSOP, SOIC, and QSOP packages
DESCRIPTION:
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
O
1
PIN CONFIGURATION
IN
1
2
3
4
5
6
7
8
9
10
SO 20-2
SO 20-7
SO 20-8
20
19
18
17
16
15
14
13
12
11
V
CC
O
10
O
9
GND
O
8
V
CC
O
7
GND
O
6
O
5
O
2
GND
O
1
O
3
VCC
O
2
O
4
GND
O
3
O
5
IN
O
6
VCC
O
4
GND
O
7
SOIC/ SSOP/ QSOP
TOP VIEW
O
8
O
9
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
V
TERM(2)
V
TERM(3)
V
TERM(4)
T
STG
I
OUT
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 V
CC
+0.5
–65 to +150
–60 to +60
Unit
V
V
V
°C
mA
CAPACITANCE
(T
A
= +25
O
C, f = 1.0MHz)
Symbol
C
IN
C
OUT
Parameter
(1)
Input Capacitance
Output Capacitance
Conditions
V
IN
= 0V
V
OUT
= 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. V
CC
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
∆I
CC
I
CCD
Parameter
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply Current
(4)
Test Conditions
(1)
V
CC
= Max.
V
IN
= V
CC –
0.6V
(3)
V
CC
= Max.
Input toggling
50% Duty Cycle
Outputs Open
I
C
Total Power Supply Current
(6)
V
CC
= Max.
Input toggling
50% Duty Cycle
Outputs Open
fi = 50MHz
NOTES:
For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
Typical values are at V
CC
= 3.3V, +25°C ambient.
Per TTL driven input (V
IN
= V
CC
-0.6V); all other inputs at V
CC
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 I
C
formula. These limits are guaranteed but not tested.
6.
I
C
= I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
∆I
CC
D
H
N
T
+ I
CCD
(f
i
)
I
CC
= Quiescent Current (I
CCL
, I
CCH
and I
CCZ
)
∆I
CC
= Power Supply Current for a TTL High Input (V
I
N
= V
CC
-0.6V)
D
H
= Duty Cycle for TTL Inputs High
N
T
= Number of TTL Inputs at D
H
I
CCD
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
f
i
= Input Frequency
All currents are in milliamps and all frequencies are in megahertz.
1.
2.
3.
4.
5.
Min.
—
V
IN
= V
CC
V
IN
= GND
—
Typ.
(2)
10
0.31
Max.
30
0.45
Unit
µA
mA/
MHz
V
IN
= V
CC
V
IN
= GND
V
IN
= V
CC –
0.6V
V
IN
= 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: T
A
= 0°C to +75°C, Industrial: T
A
= -40°C to +85°C, V
CC
= 3.3V ± 0.3V
Symbol
V
IH
V
IL
I
IH
I
IL
I
OZH
I
OZL
V
IK
I
ODH
I
ODL
V
OH
V
OL
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
V
CC
= Min., I
IN
= –18mA
V
CC
= 3.3V, V
IN
= V
IH
or V
IL
, V
O
= 1.5V
(3)
V
CC
= 3.3V, V
IN
= V
IH
or V
IL
, V
O
= 1.5V
(3)
V
CC
= Min.
V
IN
= V
IH
or V
IL
V
CC
= Min.
V
IN
= V
IH
or V
IL
I
OFF
I
OS
V
H
I
CCL
I
CCH
I
CCZ
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. 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. V
OH
= Vcc - 0.6V at rated current.
Test Conditions
(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Max.
V
CC
= Max.
V
CC
= Max.
V
I
= 5.5V
V
I
= V
CC
V
I
= GND
V
I
= GND
V
O
= V
CC
V
O
= GND
Min.
2
2
–0.5
—
—
—
—
—
—
—
–36
50
V
CC
–0.2
2.4
(5)
—
—
—
—
–60
—
—
Typ.
—
—
—
—
—
—
—
—
—
–0.7
–60
90
—
3
—
0.2
0.3
—
–135
150
0.1
Max.
5.5
V
CC
+ 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
µA
µA
V
mA
mA
V
I
OH
= –0.1mA
I
OH
= –8mA
I
OL
= 0.1mA
I
OL
= 16mA
I
OL
= 24mA
V
µA
mA
mV
µA
Input Power Off Leakage
Short Circuit Current
(4)
Input Hysteresis
Quiescent Power Supply Current
V
CC
= 0V, V
IN
= 4.5V
V
CC
= Max., V
O
= GND
(3)
—
V
CC
= Max.
V
IN
= GND or V
CC
3
IDT74FCT3807/A
3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - COMMERCIAL
(3,4)
FCT3807
Symbol
t
PLH
t
PHL
t
R
t
F
t
SK(O)
t
SK(P)
t
SK(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 (|t
PHL -–
t
PLH
|)
Package skew: skew between outputs of different
packages at same power supply voltage,
temperature, package type and speed grade
Conditions
(1)
50Ω to V
CC
/2
C
L
= 10pF
(See figure 1)
or 10Ω AC
termination,
C
L
= 50pF
(See figure 2)
f
≤
100MHz
Outputs
connected in
groups of two
FCT3807
Symbol
t
PLH
t
PHL
t
R
t
F
t
SK(O)
t
SK(P)
t
SK(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 (|t
PHL -–
t
PLH
|)
Package skew: skew between outputs of different
packages at same power supply voltage,
temperature, package type and speed grade
FCT3807
Symbol
t
PLH
t
PHL
t
R
t
F
t
SK(O)
t
SK(P)
t
SK(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 (|t
PHL -–
t
PLH
|)
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. t
PLH
, t
PHL
, t
SK
(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 V
CC
, 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)
C
L
= 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)
C
L
= 50pF
f
≤
40MHz
(See figure 4)
Min
.
(2)
1.5
—
—
—
—
—
4
IDT74FCT3807/A
3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - INDUSTRIAL
(3,4)
FCT3807
Symbol
t
PLH
t
PHL
t
R
t
F
t
SK(O)
t
SK(P)
t
SK(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 (|t
PHL -–
t
PLH
|)
Package skew: skew between outputs of different
packages at same power supply voltage,
temperature, package type and speed grade
Conditions
(1)
50Ω to V
CC
/2
C
L
= 10pF
(See figure 1)
or 50Ω AC
termination,
C
L
= 10pF
(See figure 2)
f
≤
100MHz
Outputs
connected in
groups of two
FCT3807
Symbol
t
PLH
t
PHL
t
R
t
F
t
SK(O)
t
SK(P)
t
SK(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 (|t
PHL -–
t
PLH
|)
Package skew: skew between outputs of different
packages at same power supply voltage,
temperature, package type and speed grade
FCT3807
Symbol
t
PLH
t
PHL
t
R
t
F
t
SK(O)
t
SK(P)
t
SK(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 (|t
PHL -–
t
PLH
|)
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. t
PLH
, t
PHL
, t
SK
(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 V
CC
, 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)
C
L
= 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)
C
L
= 50pF
f
≤
40MHz
(See figure 4)
Min
.
(2)
1.5
—
—
—
—
—
5
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