IDT IDT74FCT3807A 3.3v cmos 1-to-10 clock driver Datasheet

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:
FUNCTIONAL BLOCK DIAGRAM
PIN CONFIGURATION
•
•
•
•
•
•
•
•
•
•
•
•
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.
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
O1
O2
O3
O4
O5
IN
1
20
VCC
GND
2
19
O10
O1
3
18
O9
VCC
4
17
GND
O2
5
16
O8
GND
6
15
VCC
O3
7
14
O7
VCC
8
13
GND
O4
9
12
O6
10
11
O5
IN
O6
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
SEPTEMBER 2001
1
c
2001 Integrated Device Technology, Inc.
DSC-4647/2
IDT74FCT3807/A
3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Description
VTERM(2)
VTERM(3)
VTERM(4)
CAPACITANCE (TA = +25OC, f = 1.0MHz)
Parameter(1)
Max
Unit
Terminal Voltage with Respect to GND
–0.5 to +4.6
V
CIN
Input Capacitance
VIN = 0V
4.5
6
pF
Terminal Voltage with Respect to GND
–0.5 to +7
V
COUT
Output Capacitance
VOUT = 0V
5.5
8
pF
Terminal Voltage with Respect to GND
–0.5 to VCC+0.5
V
TSTG
Storage Temperature
–65 to +150
°C
IOUT
DC Output Current
–60 to +60
mA
Symbol
Conditions
Typ.
Max.
Unit
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
Description
IN
Clock Inputs
Ox
Clock Outputs
POWER SUPPLY CHARACTERISTICS
Parameter
Test Conditions(1)
Min.
Typ.(2)
Max.
Unit
∆ICC
Quiescent Power Supply Current
TTL Inputs HIGH
VCC = Max.
VIN = VCC –0.6V(3)
—
10
30
µA
ICCD
Dynamic Power Supply Current(4)
VCC = Max.
Input toggling
VIN = VCC
VIN = GND
—
0.31
0.45
mA/
MHz
VCC = Max.
Input toggling
VIN = VCC
VIN = GND
—
15.5
22.8
mA
50% Duty Cycle
Outputs Open
VIN = VCC –0.6V
—
15.5
22.8
fi = 50MHz
VIN = GND
Symbol
50% Duty Cycle
Outputs Open
IC
Total Power Supply Current(6)
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.
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
Parameter
Test Conditions(1)
Input HIGH Level (Input pins)
Guaranteed Logic HIGH Level
Max.
Unit
—
5.5
V
—
VCC + 0.5
–0.5
—
0.8
VI = 5.5V
—
—
±1
VI = VCC
—
—
±1
VI = GND
—
—
±1
VI = GND
—
—
±1
VO = VCC
—
—
±1
Input HIGH Level (I/O pins)
VIL
Input LOW Level (Input and I/O pins)
Guaranteed Logic LOW Level
IIH
Input HIGH Current (Input pins)
VCC = Max.
Input HIGH Current (I/O pins)
IIL
Input LOW Current (Input pins)
VCC = Max.
Input LOW Current (I/O pins)
IOZH
High Impedence Output Current
IOZL
(3-State Output Pins)
VIK
Clamp Diode Voltage
VCC = Max.
2
2
V
µA
µA
—
—
±1
–0.7
–1.2
V
1.5V(3)
–36
–60
–110
mA
50
90
200
mA
VCC–0.2
—
—
V
Output HIGH Current
VCC = 3.3V, VIN = VIH or VIL, VO =
IODL
Output LOW Current
VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V(3)
VOH
Output HIGH Voltage
VCC = Min.
Output LOW Voltage
Typ.
—
VO = GND
VCC = Min., IIN = –18mA
IODH
VOL
Min.
IOH = –0.1mA
VIN = VIH or VIL
IOH = –8mA
2.4(5)
3
—
VCC = Min.
IOL = 0.1mA
—
—
0.2
VIN = VIH or VIL
IOL = 16mA
—
0.2
0.4
IOL = 24mA
—
0.3
0.5
—
—
±1
µA
IOFF
Input Power Off Leakage
IOS
Short Circuit Current(4)
VCC = Max., VO =
–60
–135
–240
mA
VH
Input Hysteresis
—
—
150
—
mV
ICCL
Quiescent Power Supply Current
VCC = Max.
—
0.1
10
µA
ICCH
VCC = 0V, VIN = 4.5V
V
GND(3)
VIN = GND or VCC
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, +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. VOH = Vcc - 0.6V at rated current.
3
IDT74FCT3807/A
3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - COMMERCIAL(3,4)
FCT3807
FCT3807A
Symbol
tPLH
Parameter
Propagation Delay
Conditions(1)
50Ω to VCC/2
Min.(2)
1.5
Max.
3.5
Min.(2)
1.5
Max.
3
Unit
ns
tPHL
tR
Output Rise Time
CL = 10pF
(See figure 1)
—
1.5
—
1.5
ns
tF
tSK(O)
Output Fall Time
Output skew: skew between outputs of
or 10Ω AC
termination,
—
—
1.5
0.5
—
—
1.5
0.35
ns
ns
tSK(P)
same package (same transition)
Pulse skew: skew between opposite transitions
CL = 50pF
(See figure 2)
—
0.5
—
0.35
ns
of same output (|tPHL -– tPLH|)
f ≤ 100MHz
—
0.9
—
0.65
ns
Max.
4.5
Min.(2)
1.5
Max.
4
Unit
ns
tSK(T)
Package skew: skew between outputs of different
Outputs
packages at same power supply voltage,
connected in
temperature, package type and speed grade
groups of two
Symbol
tPLH
Parameter
Propagation Delay
Conditions(1)
CL = 30pF
tPHL
tR
Output Rise Time
f ≤ 67MHz
(See figure 3)
FCT3807
Min.(2)
1.5
FCT3807A
—
1.5
—
1.5
ns
tSK(O)
Output Fall Time
Output skew: skew between outputs of
—
—
1.5
0.5
—
—
1.5
0.35
ns
ns
tSK(P)
same package (same transition)
Pulse skew: skew between opposite transitions
—
0.5
—
0.35
ns
—
1
—
0.75
ns
tF
of same output (|tPHL -– tPLH|)
tSK(T)
Package skew: skew between outputs of different
packages at same power supply voltage,
temperature, package type and speed grade
FCT3807
Max.
Max.
Unit
tPLH
tPHL
Propagation Delay
CL = 50pF
f ≤ 40MHz
1.5
4.8
1.5
4.3
ns
tR
tF
Output Rise Time
Output Fall Time
(See figure 4)
—
—
1.5
1.5
—
—
1.5
1.5
ns
ns
Parameter
Min.(2)
FCT3807A
Min.(2)
Symbol
Conditions(1)
tSK(O)
Output skew: skew between outputs of
same package (same transition)
—
0.5
—
0.35
ns
tSK(P)
Pulse skew: skew between opposite transitions
of same output (|tPHL -– tPLH|)
—
0.5
—
0.35
ns
tSK(T)
Package skew: skew between outputs of different
—
1
—
0.75
ns
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.
4
IDT74FCT3807/A
3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - INDUSTRIAL(3,4)
FCT3807
FCT3807A
Symbol
tPLH
Parameter
Propagation Delay
Conditions(1)
50Ω to VCC/2
Min.(2)
1.5
Max.
3.5
Min.(2)
1.5
Max.
3
Unit
ns
tPHL
tR
Output Rise Time
CL = 10pF
(See figure 1)
—
1.5
—
1.5
ns
tF
tSK(O)
Output Fall Time
Output skew: skew between outputs of
or 50Ω AC
termination,
—
—
1.5
0.6
—
—
1.5
0.45
ns
ns
tSK(P)
same package (same transition)
Pulse skew: skew between opposite transitions
CL = 10pF
(See figure 2)
—
0.6
—
0.45
ns
of same output (|tPHL -– tPLH|)
f ≤ 100MHz
—
0.9
—
0.65
ns
Max.
4.5
Min.(2)
1.5
Max.
4
Unit
ns
tSK(T)
Package skew: skew between outputs of different
Outputs
packages at same power supply voltage,
connected in
temperature, package type and speed grade
groups of two
Symbol
tPLH
Parameter
Propagation Delay
Conditions(1)
CL = 30pF
tPHL
tR
Output Rise Time
f ≤ 67MHz
(See figure 3)
FCT3807
Min.(2)
1.5
FCT3807A
—
1.5
—
1.5
ns
tSK(O)
Output Fall Time
Output skew: skew between outputs of
—
—
1.5
0.6
—
—
1.5
0.45
ns
ns
tSK(P)
same package (same transition)
Pulse skew: skew between opposite transitions
—
0.6
—
0.45
ns
—
1
—
0.75
ns
tF
of same output (|tPHL -– tPLH|)
tSK(T)
Package skew: skew between outputs of different
packages at same power supply voltage,
temperature, package type and speed grade
FCT3807
Max.
Max.
Unit
tPLH
tPHL
Propagation Delay
CL = 50pF
f ≤ 40MHz
1.5
4.8
1.5
4.3
ns
tR
tF
Output Rise Time
Output Fall Time
(See figure 4)
—
—
1.5
1.5
—
—
1.5
1.5
ns
ns
Parameter
Min.(2)
FCT3807A
Min.(2)
Symbol
Conditions(1)
tSK(O)
Output skew: skew between outputs of
same package (same transition)
—
0.6
—
0.45
ns
tSK(P)
Pulse skew: skew between opposite transitions
of same output (|tPHL -– tPLH|)
—
0.6
—
0.45
ns
tSK(T)
Package skew: skew between outputs of different
—
1
—
0.75
ns
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.
5
IDT74FCT3807/A
3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
TEST CIRCUITS
VCC
V CC
V CC
100 Ω
V IN
V IN
V OUT
Pulse
Generator
V OUT
Pulse
Generator
D.U.T.
D.U.T.
50 Ω
10pF
100 Ω
RT
10pF
RT
220pF
Figure 1. ZO = 50Ω to VCC/2, CL = 10pF
Figure 2. ZO = 50Ω 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.
V CC
V CC
V IN
V IN
V OUT
Pulse
Generator
V OUT
Pulse
Generator
D.U.T.
D.U.T.
30pF
RT
50pF
RT
CL
CL
Figure 3. CL = 50pF Circuit
Figure 3. CL = 30pF Circuit
6V
V CC
GND
ENABLE AND DISABLE TIME
SWITCH POSITION
500 Ω
V IN
V OUT
Pulse
Generator
D.U.T.
50pF
RT
CL
500 Ω
Figure 5. Enable and Disable Time Circuit
Test
Switch
Disable LOW
Enable LOW
6V
Disable HIGH
Enable HIGH
GND
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
6
IDT74FCT3807/A
3.3V CMOS 1-TO-10 CLOCK DRIVER
COMMERCIAL/INDUSTRIAL TEMPERATURE RANGES
TEST WAVEFORMS
3V
1.5V
INPUT
INPUT
0V
t PLH
t PLH1
3V
1.5V
0V
t PH L1
V OH
t PHL
V OH
2.0V
0.8V
OUTPUT
1.5V
V OL
OUTPUT 1
t SK(o)
1.5V
t SK(o)
V OH
V OL
1.5V
VOL
OUTPUT 2
tF
tR
t PLH2
t PHL2
t SK(o) = |t PLH2 - t PLH1 | or |t PHL2 - t PHL1 |
Output Skew - tSK(O)
Package Delay
3V
1.5V
0V
3V
INPUT
1.5V
INPUT
t PH L1
t PLH1
0V
V OH
1.5V
V OL
t PH L
t PLH
V OH
PACKAGE 1 OUTPUT
1.5V
t SK(t)
t SK(t)
V OL
OUTPUT
PACKAGE 2 OUTPUT
t SK(p) = |t PHL - t PLH |
t PLH2
t PH L2
t SK(t) = |t PLH2 - t PLH1 |
Pulse Skew - tSK(P)
or
Package Skew - tSK(T)
Package 1 and Package 2 are same device type and speed grade
ENABLE
DISA BLE
3V
CONTROL
INPUT
1.5V
0V
t
OUTPUT
NORM ALLY
LOW
SW ITCH
CLOSE D
t
OUTPUT
NORM ALLY
HIGH
t
PZL
3.5V
3.5V
1.5V
t
PZH
SW ITCH
OPEN
PLZ
0.3V
V OL
0.3V
V OH
PHZ
1.5V
0V
0V
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
7
V OH
1.5V
V OL
|t PHL2 - t PHL1 |
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
CORPORATE HEADQUARTERS
2975 Stender Way
Santa Clara, CA 95054
Blank
I
Commercial (0°C to +70°C)
Industrial (-40°C to +85°C)
SO
PY
Q
Small Outline IC
Shrink Small Outline IC
Quarter-size Small Outline IC
3807
3807A
1-to-10 3.3V Clock Driver
for SALES:
800-345-7015 or 408-727-6116
fax: 408-492-8674
www.idt.com
8
for Tech Support:
[email protected]
(408) 654-6459
Similar pages