74ACT14
HEX SCHMITT INVERTER
March 1999
s
HIGH SPEED: t
PD
= 5 ns (TYP.) at V
CC
= 5V
s
LOW POWER DISSIPATION:
I
CC
= 4
A (MAX.) at T
A
= 25
o
C
s
50
TRANSMISSION LINE DRIVING
CAPABILITY
s
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 24 mA (MIN)
s
BALANCED PROPAGATION DELAYS:
t
PLH
t
PHL
s
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 5V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 14
s
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The ACT14 is an advanced high-speed CMOS
HEX
SCHMITT
INVERTER
fabricated
with
sub-micron silicon gate and double-layer metal
wiring C
2
MOS technology. It is ideal for low
power
applications
mantaining
high
speed
operation similar to equivalent Bipolar Shottky
TTL.
The internal circuit is composed of 3 stages
including buffer output, which enables high noise
immunity and stable output.
The device is designed to interface directly High
Speed CMOS systems with TTL, NMOS and
CMOS output voltage levels
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.
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES :
74ACT14B
74ACT14M
M
(Micro Package)
B
(Plastic Package)
1/7
INPUT AND OUTPUT EQUIVALENT CIRCUIT
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Val ue
Unit
V
CC
Supply Voltage
-0.5 to +7
V
V
I
DC Input Voltage
-0.5 to V
CC
+ 0.5
V
V
O
DC Output Voltage
-0.5 to V
CC
+ 0.5
V
I
IK
DC Input Diode Current
20
mA
I
OK
DC Output Diode Current
20
mA
I
O
DC Output Current
50
mA
I
CC
or I
GND
DC V
CC
or Ground Current
300
mA
T
stg
Storage Temperature
-65 to +150
o
C
T
L
Lead Temperature (10 sec)
300
o
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
TRUTH TABLE
A
Y
L
H
H
L
PIN DESCRIPTION
PI N No
SYMBOL
NAME AND FUNCT ION
1, 3, 5, 9,
11, 13
1A to 6A
Data Inputs
2, 4, 6, 8,
10, 12
1Y to 6Y
Data Outputs
7
GND
Ground (0V)
14
V
CC
Positive Supply Voltage
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Valu e
Uni t
V
CC
Supply Voltage
2 to 6
V
V
I
Input Voltage
0 to V
CC
V
V
O
Output Voltage
0 to V
CC
V
T
op
Operating Temperature:
-40 to +85
o
C
74ACT14
2/7
AC ELECTRICAL CHARACTERISTICS (C
L
= 50 pF, R
L
= 500
, Input t
r
= t
f
=3 ns)
Symb ol
Parameter
T est Con ditio n
Valu e
Un it
V
CC
(V)
T
A
= 25
o
C
-40 to 85
o
C
Min.
T yp.
Max.
Mi n.
Max.
t
PLH
t
PHL
Propagation Delay Time
5.0
(*)
7.2
11.4
13.0
ns
(*) Voltage range is 5V
0.5V
DC SPECIFICATIONS
Symb ol
Parameter
Test Co nditi ons
Valu e
Un it
V
CC
(V)
T
A
= 25
o
C
-40 to 85
o
C
Min.
T yp.
Max.
Mi n.
Max.
V
t+
High Level Input Voltage
4.5
2.0
2.0
V
5.5
2.0
2.0
V
t-
Low Level Input Voltage
4.5
0.6
0.6
V
5.5
0.6
0.6
V
h
Hysteresis Voltage
4.5
0.4
1.4
0.4
1.4
V
5.5
0.4
1.5
0.4
1.5
V
OH
High Level Output
Voltage
4.5
V
I
(* )
=
V
IH
or
V
IL
I
O
=-50
A
4.4
4.49
4.4
V
5.5
I
O
=-50
A
5.4
5.49
5.4
4.5
I
O
=-24 mA
3.86
3.76
5.5
I
O
=-24 mA
4.86
4.76
V
OL
Low Level Output
Voltage
4.5
V
I
(* )
=
V
IH
or
V
IL
I
O
=50
A
0.001
0.1
0.1
V
5.5
I
O
=50 mA
0.001
0.1
0.1
4.5
I
O
=24 mA
0.36
0.44
5.5
I
O
=24 mA
0.36
0.44
I
I
Input Leakage Current
5.5
V
I
= V
CC
or GND
0.1
1
A
I
CCT
Max I
CC
/Input
5.5
V
I
= V
CC
-2.1 V
0.6
1.5
mA
I
CC
Quiescent Supply
Current
5.5
V
I
= V
CC
or GND
4
40
A
I
OLD
Dynamic Output Current
(note 1, 2)
5.5
V
OLD
= 1.65 V max
75
mA
I
OHD
V
OHD
= 3.85 V min
-75
mA
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.
74ACT14
3/7
CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
Test Co nditi ons
Valu e
Un it
V
CC
(V)
T
A
= 25
o
C
-40 to 85
o
C
Min.
T yp.
Max.
Mi n.
Max.
C
IN
Input Capacitance
5.0
5
10
10
pF
C
PD
Power Dissipation
Capacitance (note 1)
5.0
30
pF
1) C
PD
isdefined as the value of the IC'sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
Test Circuit).Average operating current can be obtained by the following equation. I
CC
(opr) = C
PD
V
CC
f
IN
+ I
CC
/6 (per circuit)
TEST CIRCUIT
C
L
= 50 pF or equivalent (includes jigand probe capacitance)
R
L
= R
1
= 500
orequivalent
R
T
= Z
OUT
of pulse generator (typically 50
)
WAVEFORM: PROPAGATION DELAYS (f=1MHz)
74ACT14
4/7
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
a1
0.51
0.020
B
1.39
1.65
0.055
0.065
b
0.5
0.020
b1
0.25
0.010
D
20
0.787
E
8.5
0.335
e
2.54
0.100
e3
15.24
0.600
F
7.1
0.280
I
5.1
0.201
L
3.3
0.130
Z
1.27
2.54
0.050
0.100
P001A
Plastic DIP-14 MECHANICAL DATA
74ACT14
5/7
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
1.75
0.068
a1
0.1
0.2
0.003
0.007
a2
1.65
0.064
b
0.35
0.46
0.013
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.019
c1
45 (typ.)
D
8.55
8.75
0.336
0.344
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
7.62
0.300
F
3.8
4.0
0.149
0.157
G
4.6
5.3
0.181
0.208
L
0.5
1.27
0.019
0.050
M
0.68
0.026
S
8 (max.)
P013G
SO-14 MECHANICAL DATA
74ACT14
6/7
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of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
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7/7
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