74LX1G14
LOW VOLTAGE CMOS SINGLE SCHMITT INVERTER
WITH 5V TOLERANT INPUT
s
s
s
s
s
s
s
s
s
5V TOLERANT INPUTS
HIGH SPEED: t
PD
= 7.5ns (MAX.) at V
CC
= 3V
LOW POWER DISSIPATION:
I
CC
= 1µA (MAX.) at T
A
= 25°C
TYPICAL HYSTERESIS: V
h
=1V at V
CC
=4.5V
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 24mA (MIN) at V
CC
= 3V
BALANCED PROPAGATION DELAYS:
t
PLH
≅
t
PHL
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 1.65V to 5.5V
(1.2V Data Retention)
IMPROVED LATCH-UP IMMUNITY
SOT23-5L
SOT323-5L
ORDER CODES
PACKAGE
SOT23-5L
SOT323-5L
T&R
74LX1G14STR
74LX1G14CTR
DESCRIPTION
The 74LX1G14 is a low voltage CMOS SINGLE
SCHMITT INVERTER fabricated with sub-micron
silicon gate and double-layer metal wiring C
2
MOS
technology.
It is ideal for 1.65 to 5.5 V
CC
operations and low
power and low noise applications. The internal
circuit is composed of 3 stages including buffer
output, which provide high noise immunity and
stable output.
Power down protection is provided on input and
output and 0 to 7V can be accepted on inputs with
PIN CONNECTION AND IEC LOGIC SYMBOLS
no regard to the supply voltage. It can be
interfaced to 5V signal environment for inputs in
mixed 3.3/5V system.
Pin configuration and function are the same as
those of the 74LX1G04 but the 74LX1G14 has
hysteresis.
This together with its schmitt trigger function
allows it to be used on line receivers with slow
rise/fall input signals.
The input is equipped with protection circuits
against static discharge, giving it ESD immunity
and transient excess voltage.
April 2004
1/11
74LX1G14
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN N°
1
2
4
3
5
SYMBOL
NC
1A
1Y
GND
V
CC
NAME AND FUNCTION
Not Connected
Data Input
Data Output
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
A
L
H
Y
H
L
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
I
V
O
V
O
I
IK
I
OK
I
O
Supply Voltage
DC Input Voltage
DC Output Voltage (V
CC
= 0V)
DC Output Voltage (High or Low State) (note 1)
DC Input Diode Current
DC Output Diode Current (note 2)
DC Output Current
Parameter
Value
-0.5 to +7.0
-0.5 to +7.0
-0.5 to +7.0
-0.5 to V
CC
+ 0.5
- 50
- 50
±
50
±
50
-65 to +150
300
Unit
V
V
V
V
mA
mA
mA
mA
°C
°C
I
CC
or I
GND
DC V
CC
or Ground Current per Supply Pin
T
stg
Storage Temperature
T
L
Lead Temperature (10 sec)
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
1) Truth Table guaranteed: 1.2V to 3.6V
2) V
IN
from 0.8V to 2V at V
CC
= 3.0V
2/11
74LX1G14
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
I
V
O
V
O
I
OH
, I
OL
I
OH
, I
OL
I
OH
, I
OL
I
OH
, I
OL
I
OH
, I
OL
T
op
Supply Voltage (note 1)
Input Voltage
Output Voltage (V
CC
= 0V)
Output Voltage (High or Low State)
High or Low Level Output Current (V
CC
= 4.5 to 5.5V)
High or Low Level Output Current (V
CC
= 3.0 to 3.6V)
High or Low Level Output Current (V
CC
= 2.7 to 3.0V)
High or Low Level Output Current (V
CC
= 2.3 to 2.7V)
High or Low Level Output Current (V
CC
= 1.65 to 2.3V)
Operating Temperature
Parameter
Value
1.65 to 5.5
0 to 5.5
0 to 5.5
0 to V
CC
±
32
±
24
±
12
±
8
±
4
-55 to 125
Unit
V
V
V
V
mA
mA
mA
mA
mA
°C
1) Truth Table guaranteed: 1.2V to 3.6V
2) V
IN
from 0.8V to 2V at V
CC
= 3.0V
3/11
74LX1G14
AC ELECTRICAL CHARACTERISTICS
Test Condition
Symbol
Parameter
V
CC
(V)
1.65 to 1.95
2.3 to 2.7
3.0 to 3.6
4.5 to 5.5
1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
4.5 to 5.5
C
L
(pF)
R
L
(Ω)
t
s
=
t
r
(ns)
-40 to 85 °C
Min.
2
1
1
0.5
1.5
2
1.5
1.5
0.8
Max.
15.6
9.5
6.5
5.5
10
5.5
5.5
7.5
6.2
Value
-55 to 125 °C
Min.
2
1
1
0.5
1.5
2
1.5
1.5
0.8
Max.
15.6
9.5
6.5
5.5
10
5.5
5.5
7.5
6.2
Unit
t
PLH
t
PHL
Propagation Delay
Time
15
1MΩ
3.0
30
30
50
50
50
1000
500
500
500
500
2.0
2.0
2.5
2.5
2.5
ns
(*) Voltage range is 3.3V
±
0.3V
(**) Voltage range is 5.0V
±
0.5V
CAPACITIVE CHARACTERISTICS
Test Condition
Symbol
Parameter
V
CC
(V)
0
1.8
2.5
3.3
f
IN
= 10MHz
Value
T
A
= 25 °C
Min.
Typ.
4
12
18
24
Max.
pF
pF
Unit
C
IN
C
PD
Input Capacitance
Power Dissipation Capacitance
(note 1)
1) C
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
5/11
微控制器 MCU
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