74AC280 STMicroelectronics, 74AC280 Datasheet - Page 4

• Manufacturer Part Number: 74AC280
• Description: 9 BIT PARITY GENERATOR
• Manufacturer: STMicroelectronics

74AC280
DC SPECIFICATIONS
1) Maximum test duration 2ms, one output loaded attime
2) Incident wave switching is guaranteed on transmission lines with impedances as low as 50 .
(*) All outputs loaded.
AC ELECTRICAL CHARACTERISTICS (C
(*) Voltage range is 3.3V 0.3V
(**) Voltage range is 5V 0.5V
CAPACITIVE CHARACTERISTICS
1) C
Test Circuit).Average operating current can be obtained by the following equation. I
4/8
Symb ol
Symb ol
Symb ol
V
I
I
C
V
t
t
PD
V
C
I
OHD
V
OLD
PLH
PHL
CC
OH
I
OL
PD
IH
IN
IL
I
isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
High Level Input Voltage
Low Level Input Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Leakage Current
Quiescent Supply
Current
Dynamic Output Current
(note 1, 2)
Propagation Delay Time
(Input - ODD, EVEN)
Input Capacitance
Power Dissipation
Capacitance (note 1)
Parameter
Parameter
Parameter
5.0
3.3
V
V
V
3.0
5.5
5.5
5.0
(V)
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
3.0
4.5
5.5
5.5
5.5
(V)
(V)
5.0
CC
CC
CC
(**)
(*)
Test Co nditions
Test Co nditions
T est Con ditio n
L
V
V
V
V
V
V
= 50 pF, R
I
IH
V
I
IH
V
V
V
(* )
(* )
OLD
OHD
V
V
IL
IL
I
I
or
or
V
V
= V
= V
O
O
=
=
CC
CC
= 1.65 V max
= 0.1 V or
= 0.1 V or
= 3.85 V min
CC
CC
- 0.1 V
- 0.1 V
I
I
I
I
I
I
I
I
I
O
O
O
O
I
I
I
O
O
O
O
O
O
O
O
or GND
or GND
=-50 A
=-12 mA
=-24 mA
=-24 mA
=-50 A
=-50 A
=12 mA
=24 mA
=24 mA
=50 A
=50 A
=50 A
L
CC
= 500 , Input t
(opr) = C
Min.
Min.
Min.
PD
3.15
3.85
2.56
3.86
4.86
2.1
2.9
4.4
5.4
1.5
1.5
V
T
T
T
CC
A
A
A
0.002
0.001
0.001
= 25
T yp.
= 25
T yp.
= 25
T yp.
2.25
2.75
2.25
2.75
2.99
4.49
5.49
f
1.5
1.5
IN
27
5
4
4
r
+ I
= t
CC
o
o
o
C
f
C
C
Valu e
Valu e
Valu e
Max.
Max.
Max.
1.35
1.65
0.36
0.36
0.36
=3 ns)
17.0
13.0
0.9
0.1
0.1
0.1
0.1
4
-40 to 85
-40 to 85
-40 to 85
Min.
Min.
Min.
3.15
3.85
2.46
3.76
4.76
2.1
2.9
4.4
5.4
1
1
Max.
Max.
Max.
1.35
1.65
0.44
0.44
0.44
18.5
14.5
-75
0.9
0.1
0.1
0.1
40
75
1
o
o
o
C
C
C
Un it
Un it
Un it
mA
mA
pF
ns
pF
V
V
V
V
A
A