74AC20B STMICROELECTRONICS [STMicroelectronics], 74AC20B Datasheet - Page 3

• Manufacturer Part Number: 74AC20B
• Description: DUAL 4-INPUT NAND GATE
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

DC SPECIFICATIONS
1) Maximum test duration 2ms, one output loaded at time
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
Symbol
Symbol
Symbol
I
V
I
t
t
C
V
PD
V
I
OHD
C
V
OLD
PLH
PHL
CC
I
OH
OL
PD
IH
IL
I
IN
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to
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 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 Con dition s
Test Con dition s
T est Cond ition
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
Typ.
Typ.
Typ.
f
= 25
= 25
= 25
2.25
2.75
2.25
2.75
2.99
4.49
5.49
IN
1.5
1.5
5.0
4.0
4.5
40
+ I
r
= t
CC
/n (per circuit)
o
o
o
C
f
C
C
Value
Value
Value
Max.
Max.
Max.
1.35
1.65
0.36
0.36
0.36
=3 ns)
0.9
0.1
0.1
0.1
7.0
6.0
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
1.0
1.0
Max.
Max.
Max.
1.35
1.65
0.44
0.44
0.44
0.9
0.1
0.1
0.1
-75
9.0
7.0
40
75
o
1
o
o
C
C
C
74AC20
Unit
Unit
Unit
mA
mA
pF
ns
pF
V
V
V
V
A
A
3/7