74AC14
HEX SCHMITT INVERTER
s
s
s
s
s
s
s
s
HIGH SPEED: t
PD
= 4.5ns (TYP.) at V
CC
= 5V
LOW POWER DISSIPATION:
I
CC
= 4µA(MAX.) at T
A
=25°C
50Ω TRASMISSION LINE DRIVING
CAPABILITY
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 24mA (MIN)
BALANCED PROPAGATION DELAYS:
t
PLH
≅
t
PHL
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 6V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 14
IMPROVED LATCH-UP IMMUNITY
DIP
SOP
ORDER CODES
PACKAGE
DIP
SOP
TSSOP
-
et
l
)
(s
so
b
ct
u
d
-O
ro
s)
P
t(
te
uc
le
o
od
r
s
P
b
O
te
le
so
b
O
PIN CONNECTION AND IEC LOGIC SYMBOLS
DESCRIPTION
The 74AC14 is an advanced high-speed CMOS
HEX SCHMITT TRIGGER INVERTER fabricated
with sub-micron silicon gate and double-layer
metal wiring C
2
MOS technology.
The internal circuit is composed of 3 stages
including buffer output, which enables high noise
immunity and stable output.
b
O
This together with its schmitt trigger function
allows it to be used on line receivers with slow
rise/fall input signals.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
so
te
le
ro
P
TUBE
uc
d
s)
t(
TSSOP
T&R
74AC14B
74AC14M
P
e
od
r
s)
t(
uc
74AC14MTR
74AC14TTR
July 2001
1/8
74AC14
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1, 3, 5, 9, 11,
13
2, 4, 6, 8, 10,
12
7
14
SYMBOL
1A to 6A
1Y to 6Y
GND
V
CC
NAME AND FUNCTION
Data Inputs
Data Outputs
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
A
L
H
Y
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
I
V
O
I
IK
I
OK
I
O
Supply Voltage
DC Input Voltage
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Current
Parameter
l
)-
(s
so
b
ct
u
d
-O
ro
s)
P
t(
te
uc
le
o
od
r
s
P
b
O
te
le
so
b
O
I
CC
or I
GND
DC V
CC
or Ground Current
T
stg
T
L
Storage Temperature
Lead Temperature (10 sec)
b
O
so
te
le
ro
P
uc
d
H
L
s)
t(
Unit
V
V
V
mA
mA
mA
mA
°C
°C
Value
-0.5 to +7
te
e
r
P
-0.5 to V
CC
+ 0.5
-0.5 to V
CC
+ 0.5
±
20
±
20
±
50
±
300
-65 to +150
300
od
s)
t(
uc
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
I
V
O
Parameter
Value
2 to 6
0 to V
CC
0 to V
CC
-55 to 125
Unit
V
V
V
°C
Supply Voltage
Input Voltage
Output Voltage
T
op
Operating Temperature
2/8
74AC14
DC SPECIFICATIONS
Test Condition
Symbol
Parameter
V
CC
(V)
3.0
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
5.5
V
OL
Low Level Output
Voltage
3.0
4.5
5.5
3.0
4.5
5.5
I
I
I
CC
I
OLD
Input Leakage Cur-
rent
Quiescent Supply
Current
T
A
= 25°C
Min.
T
A
=Worst Case
2.2
3.2
3.9
0.5
0.9
1.1
1.2
1.4
1.6
2.99
4.49
5.49
Typ.
Max.
Value
-40 to 85°C
Min.
2.2
3.2
3.9
0.5
0.9
1.1
1.2
1.4
1.6
Max.
-55 to 125°C
Min.
2.2
3.2
3.9
0.5
0.9
1.1
1.2
1.4
1.6
Max.
V
Unit
V
t+
High Level Input
Voltage
Low Level Input
Voltage
Hysteresis Voltage
V
t-
T
A
=Worst Case
0.3
0.4
0.5
2.9
4.4
5.4
2.56
3.86
4.86
V
V
h
T
A
=Worst Case
I
O
=-50
µA
I
O
=-50
µA
I
O
=-50
µA
I
O
=-12 mA
I
O
=-24 mA
I
O
=-24 mA
I
O
=50
µA
I
O
=50
µA
I
O
=50
µA
0.3
0.4
0.5
2.9
4.4
V
OH
High Level Output
Voltage
I
OHD
1) Maximum test duration 2ms, one output loaded at time
2) Incident wave switching is guaranteed on transmission lines with impedances as low as 50Ω
O
AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, R
L
= 500
Ω,
Input t
r
= t
f
= 3ns)
bs
et
l
o
Dynamic Output
Current (note 1, 2)
r
P
e
od
5.5
5.5
5.5
uc
s)
t(
I
O
=12 mA
I
O
=24 mA
I
O
=24 mA
O
-
so
b
0.002
0.001
0.001
t
le
P
e
5.4
2.46
3.76
4.76
ro
uc
d
2.9
4.4
5.4
2.46
3.76
4.76
s)
t(
V
0.1
0.1
0.1
V
I
= V
CC
or GND
V
I
= V
CC
or GND
b
O
Symbol
so
te
le
r
P
uc
od
V
CC
(V)
3.3
(*)
5.0
(**)
V
OLD
= 1.65 V max
V
OHD
= 3.85 V min
s)
t(
so
b
-O
te
le
0.36
0.36
0.36
±
0.1
4
r
P
od
0.1
0.1
0.1
s)
t(
uc
0.1
0.1
0.1
0.44
0.44
0.44
±
1
40
50
-50
V
0.44
0.44
0.44
±
1
40
75
-75
V
µA
µA
mA
mA
Test Condition
T
A
= 25°C
Min.
1.5
1.5
Typ.
6.0
4
Max.
11.0
8.0
Value
-40 to 85°C
Min.
1.0
1.0
Max.
15.0
11.0
-55 to 125°C
Min.
1.0
1.0
Max.
16.0
12.0
ns
Unit
Parameter
t
PLH
t
PHL
Propagation Delay
Time
(*) Voltage range is 3.3V
±
0.3V
(**) Voltage range is 5.0V
±
0.5V
3/8
74AC14
CAPACITIVE CHARACTERISTICS
Test Condition
Symbol
Parameter
V
CC
(V)
5.0
5.0
f
IN
= 10MHz
35
pF
T
A
= 25°C
Min.
Typ.
4
Max.
Value
-40 to 85°C
Min.
Max.
-55 to 125°C
Min.
Max.
pF
Unit
C
IN
C
PD
Input Capacitance
Power Dissipation
Capacitance
(note 1)
1) C
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/6 (per gate)
TEST CIRCUIT
-
et
l
)
(s
so
b
ct
u
d
-O
ro
s)
P
t(
te
uc
le
o
od
r
s
P
b
O
te
le
so
b
O
C
L
= 50pF or equivalent (includes jig and probe capacitance)
R
L
= R
1
= 500Ω or equivalent
R
T
= Z
OUT
of pulse generator (typically 50Ω)
b
O
so
te
le
ro
P
uc
d
s)
t(
P
e
od
r
s)
t(
uc
WAVEFORM: PROPAGATION DELAYS
(f=1MHz; 50% duty cycle)
4/8
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