74VHC14
Hex Schmitt inverter
Datasheet
−
production data
Features
■
High speed: t
PD
= 5.5 ns (typ.) at V
CC
= 5 V
■
Low power dissipation
– I
CC
= 2
μA
(max.) at T
A
= 25 °C
■
■
TSSOP14
SO-14
Typical hysteresis: V
h
= 1 V at V
CC
= 4.5 V
Power-down protection on inputs
– Symmetrical output impedance
|I
OH
| = I
OL
= 8 mA (min.)
Description
The 74VHC14 device is an advanced high-speed
CMOS hex Schmitt inverter manufactured with
sub-micron silicon gate and double-layer metal
wiring C
2
MOS technology. The internal circuit is
composed of 3 stages including a buffer output,
which provides high noise immunity and stable
output.
Power-down protection is provided on all inputs
and 0 to 7 V can be accepted on inputs
regardless of the supply voltage. This device can
be used to interface from 5 V to 3 V.
Pin configuration and function are the same as
those of the 74VHC04 device but the 74VHC14
device has hysteresis.
This along with its Schmitt trigger function allows
the device 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 2 kV ESD immunity and transient excess
voltage.
Balanced propagation delay: t
PLH
≅
t
PHL
■
Operating voltage range
– V
CC
(opr.) = 2 V to 5.5 V
■
■
■
■
■
Pin and function compatible with 74 series 14
Improved latch-up immunity
Low noise
– V
OLP
= 0.8 V (max.)
ESD performance
– HBM: 2000 V
– MM: 200 V
– CDM: 1000 V
Applications
■
■
■
■
Automotive
Industrial
Computer
Consumer
Device summary
Temperature range
-55/+125 °C
-40/+125 °C
-55/+125 °C
-40/+125 °C
Table 1.
Order code
74VHC14TTR
74VHC14YTTR
(1)
74VHC14MTR
74VHC14YMTR
(1)
Package
TSSOP14
TSSOP14 (automotive grade)
SO-14
SO-14 (automotive grade)
Packaging
Tape and reel
Tape and reel
Tape and reel
Tape and reel
Marking
VHC14
VHC14Y
74VHC14
74VHC14Y
1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC
Q001 and Q002 or equivalent.
October 2012
This is information on a product in full production.
Doc ID 5741 Rev 9
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www.st.com
16
Contents
74VHC14
Contents
1
2
Logic symbols and I/O equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1
2.2
2.3
Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
5
6
7
8
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2/16
Doc ID 5741 Rev 9
74VHC14
Logic symbols and I/O equivalent circuit
1
Logic symbols and I/O equivalent circuit
Figure 1.
IEC logic symbols
Figure 2.
Input and output equivalent circuit
Doc ID 5741 Rev 9
3/16
Pin settings
74VHC14
2
2.1
Pin settings
Pin connections
Figure 3.
Pin connections (top through view)
2.2
Pin description
Table 2.
Pin description
Symbol
1A to 6A
1Y to 6Y
GND
V
CC
Data inputs
Data outputs
Ground (0 V)
Positive supply voltage
Name and function
Pin number
1, 3, 5, 9, 11, 13
2, 4, 6, 8, 10, 12
7
14
2.3
Truth table
Table 3.
Truth table
Input
A
L
H
Output
Y
H
L
4/16
Doc ID 5741 Rev 9
74VHC14
Maximum ratings
3
Maximum ratings
Stressing the device above the rating listed in
Table 4: Absolute maximum ratings
may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in
Table 5: Recommended
operating conditions
of this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
Table 4.
Symbol
V
CC
V
I
V
O
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
T
L
Supply voltage
DC input voltage
DC output voltage
DC input diode current
DC output diode current
DC output current
DC supply current per supply pin
DC ground current per supply pin
Storage temperature
Lead temperature (10 sec.)
Absolute maximum ratings
Parameter
Value
-0.5 to +7.0
-0.5 to +7.0
-0.5 to V
CC
+ 0.5
- 20
±
20
±
25
±
50
±
50
-65 to +150
300
Unit
V
V
V
mA
mA
mA
mA
mA
°C
°C
Recommended operating conditions
Table 5.
Symbol
V
CC
V
I
V
O
T
op
Supply voltage
Input voltage
Output voltage
TSSOP14, SO-14
Operating temperature
TSSOP14 (automotive grade)
-40 to +125
°C
Recommended operating conditions
Parameter
Value
2 to 5.5
0 to 5.5
0 to V
CC
-55 to +125
Unit
V
V
V
°C
Doc ID 5741 Rev 9
5/16
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