PI49FCT32803QEX

1
PS8704C 11/13/08
1:5/1:7 3.3V CMOS Clock Drivers
Description
Pericom Semiconductors PI49FCT3280x is a 3.3V very low-skew
clock buffer from a single low-capacitance input that produces ve
outputs on PI49FCT32802 and seven outputs on PI49FCT32803.
Excellent output signals to power and ground ratio minimize power
and ground noise, and also improves output performance.
The PI49FCT3280x integrates series damping resistors on all
outputs.
Pin Con guration (PI49FCT32802)
Block Diagram (PI49FCT32802)
PI49FCT32802
PI49FCT32803
Features
Low skew: < 200ps
Fast switching frequency >133 MHz
Fast output rise/fall time < 1.5ns
Low propagation delay < 2.5ns
Low input capacitance < 6.0pF
• 5V Tolerant input
Rail-to-Rail CMOS outputs
Industrial Temperature: –40°C to +85°C
3.3V ±10% operation
Packages (Pb-free & Green available):
– 16-pin 150-mil wide QSOP (Q)
– 16-pin 173-mil wide TSSOP (L)
A
B
0
B
1
B
2
B
3
B
4
Pin Con guration (PI49FCT32803)
Block Diagram (PI49FCT32803)
A
B
0
B
1
B
2
B
3
B
6
V
C
C
A1 16
B4
G
ND 2 15
B3B0 3 14
GN
D
V
CC
413
B2B1 5 12
V
C
C
G
ND 6 11
NCNC 7 10
GN
DV
CC
89
16-Pin
L, Q
V
C
C
A1 16
B6
G
ND 2 15
B5B0 3 14
GN
D
V
CC
413
B4B1 5 12
V
C
C
G
ND 6 11
B3B2 7 10
GN
DV
CC
89
16-Pin
L, Q
Pin Description
Pin Name
Description
PI49FCT32802 PI49FCT32803
A A Input
B0–B4 B0–B6 Outputs
GND GND Ground
V
CC
V
CC
Power
08-0298
2
PS8704C 11/13/08
PI49FCT32802
PI49FCT32803
1:5/1:7 3.3V CMOS Clock Drivers
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional op er a tion
of the device at these or any other con di tions above those
indicated in the operational sec tions of this spec i ca tion is
not implied. Ex po sure to ab so lute maximum rating condi-
tions for extended pe ri ods may affect re li abil i ty.
Storage Temperature ............................................................ –65°C to +150°C
Ambient Temperature with Power Applied ...........................–40°C to +85°C
Supply Voltage to Ground Potential ........................................–0.5V to +5.5V
DC Input Voltage ....................................................................–0.5V to +5.5V
DC Output Current ............................................................................... 120mA
Power Dissipation ................................................................................... 0.5W
Notes:
1. For Max. or Min. conditions, use appropriate value speci ed under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V, +25°C ambient and maximum loading.
3. V
OH
= V
CC
– 0.6V at rated current.
4. This parameter is determined by device characterization but is not production tested.
5. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
DC Electrical Characteristics (Over the Operating Range)
Symbol Description Test Conditions
(1)
Min. Typ. Max. Units
V
OH
Output HIGH voltage V
CC
=3V,V
IN
=V
IH
or V
IL
I
OH
= –8mA 2.4 3
V
V
OL
Output LOW voltage V
CC
=3V, V
IN
=V
IH
or V
IL
I
OL
= 12mA 0.4 0.5
V
IH
Input HIGH voltage Guaranteed Logic HIGH Level (Input Pins) 2 5.5
V
IL
Input LOW voltage Guaranteed Logic LOW Level (Input Pins) –0.5 0.8
I
IH
Input HIGH current V
CC
= 3.6V V
IN
= 3.6V 1
μA
I
IL
Input LOW current V
CC
= 3.6V V
IN
= 0V –1
V
IK
Clamp diode voltage V
CC
= Min., I
IN
= –18mA –0.7 –1.2 V
I
OH
Output HIGH current V
CC
= 3.3V, V
IN
= V
IH
or V
IL
, V
OUT
= 1.5V
(5)
–25 –45 –80
mAI
OL
Output LOW current V
CC
= 3.3V, V
IN
= V
IH
or V
IL
, V
OUT
= 1.5V
(5)
25 45 90
I
OS
Short circuit current
(5)
V
CC
= Max., V
OUT
= GND
(5)
–50 –100 –180
V
H
Input Hysteresis 150 mV
R
S
Series Resistor 22 Ω
08-0298
3
PS8704C 11/13/08
PI49FCT32802
PI49FCT32803
1:5/1:7 3.3V CMOS Clock Drivers
Power Supply Characteristics
Parameters De scrip tion
Test Conditions
(1)
Min.
Typ
(2)
Max. Units
I
CC
Quiescent Power
Supply Current
V
CC
= Max.
V
IN
= GND
or V
CC
0.1 30
μA
ΔI
CC
Supply Current per
Inputs @ TTL HIGH
V
CC
= Max. V
IN
= V
CC
– 0.6V
(3)
47 300
I
CCD
Supply Current per
Input per MHz
(4)
V
CC
= Max.,
Outputs Open
Per Output Toggling
50% Duty Cycle
V
IN
= V
CC
mA/
V
IN
= GND 0.08 0.16 MHz
Notes:
1. For Max. or Min. conditions, use appropriate value speci ed under Electrical Characteristics for the applicable device.
2. Typical values are at V
CC
= 3.3V, +25°C ambient.
3. Per TTL driven input (V
IN
= V
CC
– 0.6V); all other inputs at V
CC
or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the I
C
formula. These limits are guaranteed but not tested.
Capacitance (T
A
= 25°C, f = 1 MHz)
Parameters
(1)
De scrip tion Test Conditions Typ Max. Units
C
IN
Input Capacitance V
IN
= 0V 3.0 4
pF
C
OUT
Output Capacitance V
OUT
= 0V 6
Notes:
1. This parameter is determined by device characterization but is not production tested.
Notes:
1. Other loading condition is described on page 4, “Test Circuits for All Outputs.”
2. These parameters are guaranteed by design.
3. Minimum propagation delay of 1.5ns is guaranteed by design.
Maximum Switching Characteristics (Over operating range)
Symbol Description Condition Max. Units
t
PLH
t
PHL
Propagation Delay A to Bn
(3)
CL =15pF 2.5
ns
t
R/tF
Rise/Fall Time
(2)
0.8V –2.0V 1.5
t
SK(p)
Pulse Skew (same pkg)
(1,2)
CL =15pF
0.35
t
SK(o)
Output Skew (same pkg.)
(1,2)
0.2
t
SK(t)
Output Skew (different pkg.)
(1,2)
0.55
F
IN
Input Frequency
(1,2)
133 MHz
08-0298

PI49FCT32803QEX

Mfr. #:
Manufacturer:
Diodes Incorporated
Description:
Clock Buffer 1:5 / 1:7 Clock Buffer
Lifecycle:
New from this manufacturer.
Delivery:
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