TC74VHC14F/FN/FT/FK
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74VHC14F,TC74VHC14FN,TC74VHC14FT,TC74VHC14FK
Hex Schmitt Inverter
The TC74VHC14 is an advanced high speed CMOS SCHMITT
INVERTER fabricated with silicon gate C
2
MOS technology.
It achieves the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low power
dissipation.
Pin configuration and function are the same as the
TC74VHC04 but the inputs have hysteresis and with its schmitt
trigger function, the TC74VHC14 can be used as a line receivers
which will receive slow input signals.
An input protection circuit ensures that 0 to 5.5 V can be
applied to the input pins without regard to the supply voltage.
This device can be used to interface 5 V to 3 V systems and two
supply systems such as battery back up. This circuit prevents
device destruction due to mismatched supply and input voltages.
Note: xxxFN (JEDEC SOP) is not available in
Japan.
TC74VHC14F
Features
•
•
•
•
•
•
•
High speed: t
pd
=
5.5 ns (typ.) at V
CC
=
5 V
Low power dissipation: I
CC
=
2
μA
(max) at Ta
=
25°C
Power down protection is provided on all inputs.
Balanced propagation delays: t
pLH
∼
t
pHL
−
Wide operating voltage range: V
CC (opr)
=
2 V to 5.5 V
Low noise: V
OLP
=
0.8 V (max)
Pin and function compatible with 74ALS14
TC74VHC14FN
TC74VHC14FT
TC74VHC14FK
Weight
SOP14-P-300-1.27A
SOP14-P-300-1.27
SOL14-P-150-1.27
TSSOP14-P-0044-0.65A
VSSOP14-P-0030-0.50
: 0.18 g (typ.)
: 0.18 g (typ.)
: 0.12 g (typ.)
: 0.06 g (typ.)
: 0.02 g (typ.)
1
2006-06-01
TC74VHC14F/FN/FT/FK
Pin Assignment
IEC Logic Symbol
1A
2A
3A
4A
(1)
(3)
(5)
(9)
(2)
(4)
(6)
(8)
1Y
2Y
3Y
1A
1Y
2A
2Y
3A
3Y
GND
1
2
3
4
5
6
7
(top view)
14
13
12
11
10
9
8
V
CC
6A
6Y
5A
5Y
4A
4Y
(11)
5A
(13)
6A
4Y
(10)
5Y
(12)
6Y
Truth Table
A
L
H
Y
H
L
System Diagram, Waveform
A
Y
V
H
V
IN
(A)
V
P
V
N
V
OUT
(Y)
Absolute Maximum Ratings (Note)
Characteristics
Supply voltage range
DC input voltage
DC output voltage
Input diode current
Output diode current
DC output current
DC V
CC
/ground current
Power dissipation
Storage temperature
Symbol
V
CC
V
IN
V
OUT
I
IK
I
OK
I
OUT
I
CC
P
D
T
stg
Rating
−0.5
to 7.0
−0.5
to 7.0
−0.5
to V
CC
+ 0.5
−20
±20
±25
±50
180
−65
to 150
Unit
V
V
V
mA
mA
mA
mA
mW
°C
Note:
Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or
even destruction.
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2006-06-01
TC74VHC14F/FN/FT/FK
Recommended Operating Conditions (Note)
Characteristics
Supply voltage
Input voltage
Output voltage
Operating temperature
Symbol
V
CC
V
IN
V
OUT
T
opr
Rating
2.0 to 5.5
0 to 5.5
0 to V
CC
−40
to 85
Unit
V
V
V
°C
Note:
The recommended operating conditions are required to ensure the normal operation of the device.
Unused inputs must be tied to either VCC or GND.
Electrical Characteristics
DC Characteristics
Test Condition
Characteristics
Symbol
V
CC
(V)
3.0
Positive threshold
voltage
V
P
―
4.5
5.5
3.0
Negative threshold
voltage
V
N
―
4.5
5.5
3.0
Hysteresis voltage
V
H
―
4.5
5.5
2.0
I
OH
=
−50 μA
High-level output
voltage
V
OH
V
IN
= V
IL
I
OH
=
−4
mA
I
OH
=
−8
mA
3.0
4.5
3.0
4.5
2.0
I
OL
= 50
μA
Low-level output
voltage
V
OL
V
IN
= V
IH
I
OL
= 4 mA
I
OL
= 8 mA
Input leakage
current
Quiescent supply
current
I
IN
I
CC
V
IN
= 5.5 V or GND
V
IN
= V
CC
or GND
3.0
4.5
3.0
4.5
0 to
5.5
5.5
Min
―
―
―
0.90
1.35
1.65
0.30
0.40
0.50
1.9
2.9
4.4
2.58
3.94
―
―
―
―
―
―
―
Ta = 25°C
Typ.
―
―
―
―
―
―
―
―
―
2.0
3.0
4.5
―
―
0.0
0.0
0.0
―
―
―
―
Max
2.20
3.15
3.85
―
―
―
1.20
1.40
1.60
―
―
―
―
―
0.1
0.1
0.1
0.36
0.36
±0.1
2.0
Ta =
−40
to 85°C
Min
―
―
―
0.90
1.35
1.65
0.30
0.40
0.50
1.9
2.9
4.4
2.48
3.80
―
―
―
―
―
―
―
Max
2.20
3.15
3.85
―
―
―
1.20
1.40
1.60
―
―
―
―
―
0.1
0.1
0.1
0.44
0.44
±1.0
20.0
μA
μA
V
V
V
V
V
Unit
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2006-06-01
TC74VHC14F/FN/FT/FK
AC Characteristics
(input: t
r
= t
f
= 3 ns)
Characteristics
Symbol
Test Condition
V
CC
(V)
3.3 ± 0.3
―
5.0 ± 0.5
―
(Note)
C
L
(pF)
15
50
15
50
Min
―
―
―
―
―
―
Ta = 25°C
Typ.
8.3
10.8
5.5
7.0
4
21
Max
12.8
16.3
8.6
10.6
10
―
Ta =
−40
to 85°C
Min
1.0
1.0
1.0
1.0
―
―
Max
15.0
18.5
10.0
12.0
10
―
pF
pF
ns
Unit
Propagation delay
time
t
pLH
t
pHL
Input capacitance
Power dissipation
capacitance
C
IN
C
PD
Note: C
PD
is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load.
Average operating current can be obtained by the equation:
I
CC (opr)
= C
PD
·V
CC
·f
IN
+ I
CC
/6 (per gate)
Noise Characteristics
(input: t
r
= t
f
= 3 ns)
Characteristics
Quiet output maximum dynamic V
OL
Quiet output minimum dynamic V
OL
Minimum high level dynamic input
voltage
Maximum low level dynamic input
voltage
Symbol
V
OLP
V
OLV
V
IHD
V
ILD
C
L
= 50 pF
C
L
= 50 pF
C
L
= 50 pF
C
L
= 50 pF
Test Condition
V
CC
(V)
5.0
5.0
5.0
5.0
Ta = 25°C
Typ.
0.4
−0.4
―
―
Limit
0.8
−0.8
3.5
1.5
Unit
V
V
V
V
Input Equivalent Circuit
INPUT
4
2006-06-01
Embedded System
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