Schmitt-Trigger Inverter/ CMOS Logic Level Shifter
with LSTTL–Compatible Inputs
MC74VHC1GT14
The MC74VHC1GT14 is a single gate CMOS Schmitt–trigger inverter fabricated with silicon gate CMOS technology. It achieves high
speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation.
The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output.
The device input is compatible with TTL–type input thresholds and the output has a full 5 V CMOS level output swing. The input
protection circuitry on this device allows overvoltage tolerance on the input, allowing the device to be used as a logic–level translator from
3.0 V CMOS logic to 5.0 V CMOS Logic or from 1.8 V CMOS logic to 3.0 V CMOS Logic while operating at the high–voltage power
supply.
The MC74VHC1GT14 input structure provides protection when voltages up to 7 V are applied, regardless of the supply voltage. This
allows the MC74VHC1GT14 to be used to interface 5 V circuits to 3 V circuits. The output structures also provide protection when
V
CC
= 0 V. These input and output structures help prevent device destruction caused by supply voltage – input/output voltage mismatch,
battery backup, hot insertion, etc. The MC74VHC1GT14 can be used to enhance noise immunity or to square up slowly changing waveforms.
• High Speed: t
PD
= 4.5 ns (Typ) at V
CC
= 5 V
• Low Power Dissipation: I
CC
= 2 mA (Max) at T
A
= 25°C
• TTL–Compatible Inputs: V
IL
= 0.8 V; V
IH
= 2.0 V
• CMOS–Compatible Outputs: V
OH
> 0.8 V
CC
;
V
OL
< 0.1 V
CC
@ Load
• Power Down Protection Provided on Inputs and Outputs
• Balanced Propagation Delays
• Pin and Function Compatible with Other Standard Logic
Families
• Chip Complexity: FETs = 100; Equivalent Gates = 25
MARKING DIAGRAMS
5
4
1
2
3
VC
d
SC–70/SC–88A/SOT–353
DF SUFFIX
CASE 419A
Pin 1
d = Date Code
5
4
Figure 1. Pinout
(Top View)
1
2
3
VC
d
Figure 2. Logic Symbol
Pin 1
d = Date Code
SOT–23/TSOP–5/SC–59
DT SUFFIX
CASE 483
PIN ASSIGNMENT
1
2
3
4
5
NC
IN A
GND
OUT Y
V
CC
FUNCTION TABLE
Inputs
A
L
H
Output
Y
H
L
ORDERING INFORMATION
See detailed ordering and shipping information in the
package dimensions section on page 4 of this data sheet.
VHT14–1/4
MC74VHC1GT14
MAXIMUM RATINGS
Value
Unit
DC Supply Voltage
– 0.5 to + 7.0
V
DC Input Voltage
– 0.5 to +7.0
V
DC Output Voltage
V
CC
=0
– 0.5 to +7.0
V
High or Low State
–0.5 to V
cc
+ 0.5
I
IK
Input Diode Current
–20
mA
I
OK
Output Diode Current
V
OUT
< GND; V
OUT
> V
CC
+20
mA
I
OUT
DC Output Current, per Pin
+ 25
mA
I
CC
DC Supply Current, V
CC
and GND
+50
mA
P
D
Power dissipation in still air
SC–88A, TSOP–5
200
mW
θ
JA
Thermal resistance
SC–88A, TSOP–5
333
°C/W
T
L
Lead Temperature, 1 mm from Case for 10 s
260
°C
T
J
Junction Temperature Under Bias
+ 150
°C
T
stg
Storage temperature
–65 to +150
°C
V
ESD
ESD Withstand Voltage
Human Body Model (Note 2)
>2000
V
Machine Model (Note 3)
> 200
Charged Device Model (Note 4)
N/A
I
LATCH–UP
Latch–Up Performance Above V
CC
and Below GND at 125°C (Note 5)
± 500
mA
1. Maximum Ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions
beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions is
not implied. Functional operation should be restricted to the Recommended Operating Conditions.
2. Tested to EIA/JESD22–A114–A
3. Tested to EIA/JESD22–A115–A
4. Tested to JESD22–C101–A
5. Tested to EIA/JESD78
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
IN
V
OUT
T
A
t
r
,t
f
Parameter
DC Supply Voltage
DC Input Voltage
DC Output Voltage
Operating Temperature Range
Input Rise and Fall Time
V
CC
= 3.3 ± 0.3 V
V
CC
= 5.0 ± 0.5 V
NORMALIZED FAILURE RATE
Symbol
V
CC
V
IN
V
OUT
Parameter
Min
3.0
0.0
V
CC
= 0
High Low State
0.0
0.0
– 55
0
0
Max
5.5
5.5
5.5
V
CC
+ 125
100
20
Unit
V
V
V
°C
ns/V
DEVICE JUNCTION TEMPERATURE VERSUS
TIME TO 0.1% BOND FAILURES
Junction
Temperature °C
80
90
100
110
120
130
140
Time,
Hours
1,032,200
419,300
178,700
79,600
37,000
17,800
8,900
Time,
Years
117.8
47.9
20.4
9.4
4.2
2.0
1.0
1
1
10
100
1000
TIME, YEARS
Figure 3. Failure Rate vs. Time Junction Temperature
VHT14–2/4
MC74VHC1GT14
DC ELECTRICAL CHARACTERISTICS
Symbol
V
T+
Parameter
Positive Threshold
Voltage
Negative Threshold
Voltage
V
H
Hysteresis Voltage
Test Conditions
V
CC
(V)
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
V
IN
< V
T
– Min
I
OH
= –50
µA
I
OH
= –4 mA
I
OH
= –8 mA
V
OL
Maximum Low–Level
Output Voltage
V
IN
> V
T
+ Min
L
I
OL
= 50
µA
I
OL
= 4 mA
I
IN
I
CC
I
CCT
I
OPD
Maximum Input
Leakage Current
Maximum Quiescent
Supply Current
Quiescent Supply
Current
Output Leakage
Current
AC ELECTRICAL CHARACTERISTICS
C
load
= 50 pF, Input t
r
= t
f
= 3.0 ns
T
A
= 25°C
Symbol Parameter
t
PLH
, Maximum
t
PHL
Propagation Delay,
Input A to Y
Test Conditions
V
CC
= 3.3
±
0.3 V C
L
= 15 pF
C
L
= 50 pF
V
CC
= 5.0
±
0.5 V C
L
= 15 pF
C
L
= 50 pF
C
IN
Maximum Input
Capacitance
Power Dissipation Capacitance (Note 6)
Min
Typ
7.0
8.4
4.5
5.8
5
Max
12.8
16.3
8.6
10.6
10
5.5
2.0
3.0
4.5
3.0
4.5
2.0
3.0
4.5
3.0
T
A
= 25°C
T
A
<
85°C
–55°C<T
A
<125°C
Min Typ Max Min Max Min Max Unit
1.20 1.40
1.58 1.74
1.79 1.94
0.35 0.76
0.5
0.6
1.01
1.13
1.60
2.00
2.10
0.93
1.18
1.29
1.20
1.40
1.60
0.35
0.5
0.6
1.6
2.0
2.0
0.35
0.5
0.6
1.20
1.40
1.60
V
1.60
2.0
2.0
V
V
V
T–
0.30 0.64
0.40 0.73
0.50 0.81
1.9 2.0
2.9
4.4
2.58
3.94
0.0
0.0
0.0
3.0
4.5
0.30 1.20 0.30
0.40 1.40 0.40
0.50 1.60 0.50
1.9
1.9
2.9
4.4
2.48
3.80
2.9
4.4
2.34
3.66
0.1
0.1
0.1
0.44
0.44
±1.0
20
1.50
5.0
V
OH
Minimum High–Level
Output Voltage
0.1
0.1
0.1
0.36
0.36
±0.1
2.0
1.35
0.5
0.1
0.1
0.1
0.52
0.52
±1.0
40
1.65
10
V
4.5
I
OL
= 8 mA
V
IN
= 5.5 V or GND 0 to5.5
V
IN
= V
CC
or GND
Input: V
IN
= 3.4 V
V
OUT
= 5.5 V
5.5
5.5
0.0
µA
µA
mA
µA
T
A
<
85°C
–55°C<T
A
<125°C
Min
1.0
1.0
1.0
1.0
Max Min
15.0 1.0
18.5
10.0
12.0
10
1.0
1.0
1.0
Max Unit
17.0 ns
20.5
11.5
13.5
10
pF
C
PD
Typical @ 25°C, V
CC
= 5.0 V
10
pF
6. 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
.
C
PD
is used to determine the no–
load dynamic power consumption; P
D
= C
PD
•
V
CC 2
•
f
in
+ I
CC
•
V
CC
.
VHT14–3/4
MC74VHC1GT14
3.0V
V
OH
V
OL
Figure 4. Switching Waveforms
*Includes all probe and jig capacitance
Figure 5. Test Circuit
DEVICE ORDERING INFORMATION
Device Nomenclature
Device
Temp
Order Number Circuit
Device
Range
Technology
Indicator
Function
Identifier
MC74VHC1GT14DFT1
MC74VHC1GT14DFT2
MC74VHC1GT14DTT1
MC
MC
MC
74
74
74
VHC1G
VHC1G
VHC1G
T14
T14
T14
Package
Suffix
DF
DF
DT
Tape &
Reel
Suffix
T1
T2
T1
Package Type
(Name/SOT#/
Common Name)
Tape and
Reel Size
SC–70/SC–88A/
SOT–353
SC–70/SC–88A/
SOT–353
SOT–23/TSOPS/
SC–59
178 mm (7 in)
3000 Unit
178 mm (7 in)
3000 Unit
178 mm (7 in)
3000 Unit
VHT14–4/4
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