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PI49FCT3805/3806
3.3V Fast CMOS Buffer/Clock Driver
Power Supply Characteristics
Parameters Description
I
CC
∆I
CC
I
CCD
Quiescent Power
Supply Current
Supply Current per
Inputs @ TTL HIGH
Supply Current per
Input per MHz
(4)
Test Conditions
(1)
V
CC
= Max.
V
CC
= Max.
V
CC
= Max.,
Outputs Open
OE
A
or OE
B
= GND
Per Output Toggling
50% Duty Cycle
V
CC
= Max.,
Outputs Open
f
O
= 10 MH
Z
50% Duty Cycle
OE
A
or OE
B
= GND
Mon. Outputs Toggling
V
CC
= Max.,
Outputs Open
f
O
= 2.5 MH
Z
50% Duty Cycle
OE
A
or OE
B
= GND
Eleven Outputs Toggling
V
IN
= GND or V
CC
V
IN
= V
CC
– 0.6V
(3)
V
IN
= V
CC
V
IN
= GND
Min.
—
—
—
Typ
(2)
3
2.0
0.08
Max.
30
300
0.16
Units
µA
µA
mA/
MH
Z
I
C
Total Power Supply
Current
(6)
V
IN
= V
CC
V
IN
= GND
V
IN
= V
CC
– 0.6V
V
IN
= GND
V
IN
= V
CC
V
IN
= GND
V
IN
= V
CC
– 0.6V
V
IN
= GND
—
3.3
9.0
(5)
—
3.3
10.0
(5)
mA
—
1.8
6.0
(5)
—
1.8
7.0
(5)
Notes:
1. For Max. or Min. conditions, use appropriate value specified 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.
6. I
C
= I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
∆I
CC
D
H
N
T
+ I
CCD
(f
O
N
O
)
I
CC
= Quiescent Current
∆I
CC
= Power Supply Current for a TTL High Input (V
IN
= 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
O
= Output Frequency
N
O
= Number of Outputs at f
O
All currents are in milliamps and all frequencies are in megahertz.
4
PS7007B
01/13/99
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
