Diodes 74HC08 - Manual (Page 4)

74HC08
Document number: DS35322 Rev. 3 - 2
4 of 8
www.diodes.com
January 2013
© Diodes Incorporated
74HC08
Electrical Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Symbol Parameter Test Conditions V
CC
T
A
= -40°C to +85°C T
A
= -40°C to +125°C
Unit
Min Max Min Max
V
IH
High-level Input Voltage
2.0V 1.5 — 1.5 —
V 4.5V 3.15 — 3.15 —
6.0V 4.2 — 4.2 —
V
IL
Low-level Input Voltage
2.0V — 0.5 — 0.5
V 4.5V — 1.35 — 1.35
6.0V — 1.8 — 1.8
V
OH
High-level Output Voltage
I
OH
= -20μA 2.0V 1.9 — 1.9 —
V
I
OH
= -20μA 4.5V 4.4 — 4.4 —
I
OH
= -20μA 6.0V 5.9 — 5.9 —
I
OH
= -4.0mA 4.5V 3.84 — 3.7 —
I
OH
= -5.2mA 6.0V 5.34 — 5.2 —
V
OL
Low-level Output Voltage
I
OL
= 20μA 2.0V — 0.1 — 0.1
V
I
OL
= 20μA 4.5V — 0.1 — 0.1
I
OL
= 20μA 6.0V — 0.1 — 0.1
I
OL
= 4mA 4.5V — 0.33 — 0.44
I
OL
= 5.2 mA 6.0V — 0.33 — 0.44
I
I
Input Current V
I
=GND to 5.5V 6.0V — ± 1 — ± 1 μA
I
CC
Supply Current
V
I
= GND or V
CC
,
I
O
= 0
6.0V — 20 — 40 μA
Switching Characteristics
Symbol Parameter
Test
Conditions
Vcc
T
A
= +25°C -40°C to +85°C -40°C to +125°C
Unit
Min Typ. Max Max Max
t
PD
Propagation
Delay A
N
to Y
N
Figure 1
C
L
= 50pF
2.0V — 25 90 115 125
ns 4.5V — 9 18 23 27
6.0V — 7 15 20 23
t
t
Transition Time
Figure 1
C
L
= 50pF
2.0V — 19 75 95 110
ns 4.5V — 7 15 19 22
6.0V — 6 13 16 19
Operating Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Parameter Test Conditions
V
CC
= 6V
Unit
Typ
C
pd
Power Dissipation
Capacitance per Gate
f = 1 MHz 20 pF
C
I
Input Capacitance V
I
= V
CC
– or GND 4 pF