LESHAN RADIO COMPANY, LTD.
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
= 0 V . These input and output structures help prevent device destruction caused by supply voltage – input/output voltage mismatch,
CC
battery backup, hot insertion, etc. The MC74VHC1GT14 can be used to enhance noise immunity or to square up slowly changing waveforms.
• High Speed: t
• Low Power Dissipation: I
• TTL–Compatible Inputs: V
= 4.5 ns (Typ) at V
PD
= 2 mA (Max) at T A = 25°C
CC
= 0.8 V; V
IL
• CMOS–Compatible Outputs: V
V
< 0.1 V
OL
@ Load
CC
> 0.8 V
OH
CC
= 5 V
= 2.0 V
IH
CC
;
• 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
1
2
3
SC–70/SC–88A/SOT–353
DF SUFFIX
CASE 419A
4
d
VC
Pin 1
d = Date Code
5
4
Figure 1. Pinout (Top View)
1
2
3
SOT–23/TSOP–5/SC–59
DT SUFFIX
CASE 483
PIN ASSIGNMENT
1NC
2 IN A
3 GND
4 OUT Y
5V
d
VC
Figure 2. Logic Symbol
Pin 1
d = Date Code
FUNCTION T ABLE
Inputs Output
AY
LH
HL
CC
ORDERING INFORMA TION
See detailed ordering and shipping information in the
package dimensions section on page 4 of this data sheet.
VHT14–1/4
LESHAN RADIO COMPANY, LTD.
MC74VHC1GT14
MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CC
V
IN
V
OUT
I
IK
I
OK
I
OUT
I
CC
P
D
θ
JA
T
L
T
J
T stg Storage temperature –65 to +150 °C
V
ESD
I
LATCH–UP
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 Parameter Min Max Unit
V
CC
V
IN
V
OUT
T
A
t r ,t
f
DC Supply Voltage – 0.5 to + 7.0 V
DC Input V oltage – 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
Input Diode Current –20 mA
Output Diode Current V
< GND; V
OUT
OUT
> V
CC
+20 mA
DC Output Current, per Pin + 25 mA
DC Supply Current, V
and GND +50 mA
CC
Power dissipation in still air SC–88A, TSOP–5 200 mW
Thermal resistance SC–88A, TSOP–5 333 °C/W
Lead Temperature, 1 mm from Case for 10 s 260 °C
Junction T emperature Under Bias + 150 °C
ESD Withstand Voltage Human Body Model (Note 2) >2000 V
Machine Model (Note 3) > 200
Charged Device Model (Note 4) N/A
Latch–Up Performance Above V
and Below GND at 125°C (Note 5) ± 500 mA
CC
DC Supply Voltage 3.0 5.5 V
DC Input Voltage 0.0 5.5 V
DC Output Voltage V
High Low State 0.0 V
= 0 0.0 5.5 V
CC
CC
Operating T emperature Range – 55 + 125 °C
Input Rise and Fall Time V
= 3.3 ± 0.3 V 0 100 ns/V
CC
V
= 5.0 ± 0.5 V 0 20
CC
DEVICE JUNCTION TEMPERATURE VERSUS
TIME TO 0.1% BOND FAILURES
Junction Time, Time,
Temperature °C Hours Years
80 1,032,200 117.8
90 419,300 47.9
100 178,700 20.4
110 79,600 9.4
120 37,000 4.2
130 17,800 2.0
140 8,900 1.0
1
NORMALIZED FAILURE RATE
1 1 0 100 1000
TIME, YEARS
Figure 3. Failure Rate vs. Time Junction Temperature
VHT14–2/4
LESHAN RADIO COMPANY, LTD.
MC74VHC1GT14
DC ELECTRICAL CHARACTERISTICS
V
CC
T A = 25°C T A <
Symbol Parameter Test Conditions (V) Min Typ Max Min Max Min Max Unit
V
Positive Threshold 3.0 1.20 1.40 1.60 1.6 1.60 V
T+
Voltage 4.5 1.58 1.74 2.00 2.0 2.0
5.5 1.79 1.94 2.10 2.0 2.0
V
Negative Threshold 3.0 0.35 0.76 0.93 0.35 0.35 V
T–
Voltage 4.5 0.5 1.01 1.18 0.5 0.5
5.5 0.6 1.13 1.29 0.6 0.6
V
Hysteresis Voltage 3.0 0.30 0.64 1.20 0.30 1.20 0.30 1.20
H
4.5 0.40 0.73 1.40 0.40 1.40 0.40 1.40
5.5 0.50 0.81 1.60 0.50 1.60 0.50 1.60
V
Minimum High–Level V
OH
Output Voltage I
<
V T – Min 2.0 1.9 2.0 1.9 1.9 V
IN
= –50 µA 3.0 2.9 3.0 2.9 2.9
OH
4.5 4.4 4.5 4.4 4.4
I
= –4 mA 3.0 2.58 2.48 2.34
OH
I
= –8 mA 4.5 3.94 3.80 3.66
OH
V
Maximum Low–Level
OL
Output Voltage I
V
>
V T + Min
IN
= 50 µA 3.0 0.0 0.1 0.1 0.1
OL
2.0 0.0 0.1 0.1 0.1 V
L
4.5 0.0 0.1 0.1 0.1
I
= 4 mA 3.0 0.36 0.44 0.52
OL
= 8 mA 4.5 0.36 0.44 0.52
I
OL
I
Maximum Input V
IN
= 5.5 V or GND
IN
0 to5.5
±0.1 ±1.0 ±1.0 µA
Leakage Current
I
Maximum Quiescent V
CC
IN
= V
or GND 5.5 2.0 20 4 0 µA
CC
Supply Current
I
Quiescent Supply Input: V
CCT
= 3.4 V 5.5 1.35 1.50 1.65 mA
IN
Current
I
Output Leakage V
OPD
= 5.5 V 0.0 0.5 5.0 10 µA
OUT
Current
85°C –55°C<TA<
125°C
AC ELECTRICAL CHARACTERISTICS C
Symbol
t
PLH
t
PHL
Parameter T est Conditions Min Typ Max Min Max Min Max Unit
, Maximum V
= 3.3± 0.3 V C L = 15 pF 7.0 12.8 1.0 15.0 1.0 17.0 ns
CC
Propagation Delay, C L = 50 pF 8.4 16.3 1.0 18.5 1.0 20.5
= 50 pF, Input t r = t f = 3.0 ns
load
T
= 25°C T A <
A
85°C –55°C<TA<125°C
Input A to Y
V
= 5.0± 0.5 V C L = 15 pF 4.5 8.6 1.0 10.0 1.0 11.5
CC
C
= 50 pF 5.8 10.6 1.0 12.0 1.0 13.5
L
Maximum Input 5 10 10 10 pF
C
IN
Capacitance
Typical @ 25°C, V
C
PD
6. C
is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without
PD
load. Average operating current can be obtained by the equation: I
load dynamic power consumption; P D = C
Power Dissipation Capacitance (Note 6) 10 pF
= C
• V
• f
PD
CC
2
• V
• f
CC
+ I
in
PD
CC
• V
CC(OPR)
.
CC
= 5.0 V
CC
+ I
.
C
in
is used to determine the no–
CC
PD
VHT14–3/4
Figure 4. Switching Waveforms
DEVICE ORDERING INFORMATION
3.0V
V
OH
V
OL
LESHAN RADIO COMPANY, LTD.
MC74VHC1GT14
*Includes all probe and jig capacitance
Figure 5. Test Circuit
Device
Order Number
MC74VHC1GT14DFT1
MC74VHC1GT14DFT2
MC74VHC1GT14DTT1
Circuit
Indicator
Device Nomenclature
Temp
Range
Identifier
MC 74 VHC1G T14 DF T1
MC 74 VHC1G T14 DF T2
MC 74 VHC1G T14 DT T1
Technology
Device
Function
Package
Suffix
T ape &
Reel
Suffix
Package T yp e
(Name/SOT#/
Common Name)
SC–70/SC–88A/
SOT–353
SC–70/SC–88A/
SOT–353
SOT–23/TSOPS/
SC–59
Tape and
Reel Size
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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