Datasheet

CY74FCT16841T
CY74FCT162841T
3
Output Drive Characteristics for CY74FCT16841T
Parameter Description Test Conditions Min. Typ.
[5]
Max. Unit
V
OH
Output HIGH Voltage V
CC
=Min., I
OH
=−3 mA 2.5 3.5 V
V
CC
=Min., I
OH
=−15 mA 2.4 3.5
V
CC
=Min., I
OH
=−32 mA 2.0 3.0
V
OL
Output LOW Voltage V
CC
=Min., I
OL
=64 mA 0.2 0.55 V
Output Drive Characteristics for CY74FCT162841T
Parameter Description Test Conditions Min. Typ.
[5]
Max. Unit
I
ODL
Output LOW Current
[7]
V
CC
=5V, V
IN
=V
IH
or V
IL
, V
OUT
=1.5V 60 115 150 mA
I
ODH
Output HIGH Current
[7]
V
CC
=5V, V
IN
=V
IH
or V
IL
, V
OUT
=1.5V −60 −115 −150 mA
V
OH
Output HIGH Voltage V
CC
=Min., I
OH
=−24 mA 2.4 3.3 V
V
OL
Output LOW Voltage V
CC
=Min., I
OL
=24 mA 0.3 0.55 V
Capacitance
[6]
(T
A
=+25˚C, f = 1.0 MHz)
Symbol Description Conditions Typ.
[5]
Max. Unit
C
IN
Input Capacitance V
IN
= 0V 4.5 6.0 pF
C
OUT
Output Capacitance V
OUT
= 0V 5.5 8.0 pF
Power Supply Characteristics
Parameter Description Test Conditions Min. Typ.
[5]
Max. Unit
I
CC
Quiescent Power Supply
Current
V
CC
=Max. V
IN
<0.2V
V
IN
>V
CC
-0.2V
— 5 500 µA
∆I
CC
Quiescent Power Supply
Current (TTL inputs HIGH)
V
CC
=Max., V
IN
=3.4V
[9]
— 0.5 1.5 mA
I
CCD
Dynamic Power Supply
Current
[10]
V
CC
=Max., One Input
Toggling, 50% Duty
Cycle, Outputs Open,
OE=GND
V
IN
=V
CC
or
V
IN
=GND
— 60 100 µA/MHz
I
C
Total Power Supply Current
[11]
V
CC
=Max., f
1
=10 MHz,
50% Duty Cycle,
Outputs Open, One Bit
Toggling,
OE=GND
LE = V
CC
V
IN
=V
CC
or
V
IN
=GND
— 0.6 1.5 mA
V
IN
=3.4V or
V
IN
=GND
— 0.9 2.3
V
CC
=Max., f
1
=2.5 MHz,
50%Duty Cycle,Outputs
Open, Twenty Bits
Toggling,
OE=GND
LE = V
CC
V
IN
=V
CC
or
V
IN
=GND
— 3.0 5.5
[12]
V
IN
=3.4V or
V
IN
=GND
— 8.0 20.5
[12]
Notes:
9. Per TTL driven input (V
IN
=3.4V); all other inputs at V
CC
or GND.
10. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.
11. I
C
=I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
=I
CC
+∆I
CC
D
H
N
T
+I
CCD
(f
0
/2 + f
1
N
1
)
I
CC
= Quiescent Current with CMOS input levels
∆I
CC
= Power Supply Current for a TTL HIGH input (V
IN
=3.4V)
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
0
= Clock frequency for registered devices, otherwise zero
f
1
= Input signal frequency
N
1
= Number of inputs changing at f
1
All currents are in milliamps and all frequencies are in megahertz.
12. Values for these conditions are examples of the I
CC
formula. These limits are specified but not tested.