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PDF 74LX1G14 Data sheet ( Hoja de datos )
| Número de pieza | 74LX1G14 | |
| Descripción | LOW VOLTAGE CMOS SINGLE SCHMITT INVERTER WITH 5V TOLERANT INPUT | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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74LX1G14
LOW VOLTAGE CMOS SINGLE SCHMITT INVERTER
WITH 5V TOLERANT INPUT
s 5V TOLERANT INPUTS
s HIGH SPEED: tPD = 7.5ns (MAX.) at VCC = 3V
s LOW POWER DISSIPATION:
ICC = 1µA (MAX.) at TA = 25°C
s TYPICAL HYSTERESIS: Vh=1V at VCC=4.5V
s POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
s SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 24mA (MIN) at VCC = 3V
s BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
s OPERATING VOLTAGE RANGE:
VCC(OPR) = 1.65V to 5.5V
(1.2V Data Retention)
s IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74LX1G14 is a low voltage CMOS SINGLE
SCHMITT INVERTER fabricated with sub-micron
silicon gate and double-layer metal wiring C2MOS
technology.
It is ideal for 1.65 to 5.5 VCC 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
SOT23-5L
SOT323-5L
ORDER CODES
PACKAGE
SOT23-5L
SOT323-5L
T&R
74LX1G14STR
74LX1G14CTR
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.
PIN CONNECTION AND IEC LOGIC SYMBOLS
December 2002
1/11
1 page  
74LX1G14
AC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
tPLH tPHL Propagation Delay
Time
(*) Voltage range is 3.3V ± 0.3V
(**) Voltage range is 5.0V ± 0.5V
Test Condition
VCC
(V)
CL RL ts = tr
(pF) (Ω) (ns)
1.65 to 1.95
2.3 to 2.7
3.0 to 3.6
15 1MΩ 3.0
4.5 to 5.5
1.65 to 1.95 30 1000 2.0
2.3 to 2.7 30 500 2.0
2.7 50 500 2.5
3.0 to 3.6 50 500 2.5
4.5 to 5.5 50 500 2.5
Value
-40 to 85 °C
-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
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
ns
CAPACITIVE CHARACTERISTICS
Test Condition
Value
Symbol
Parameter
VCC
(V)
TA = 25 °C
Min. Typ. Max.
Unit
CIN Input Capacitance
CPD Power Dissipation Capacitance
(note 1)
0
1.8
2.5
3.3
fIN = 10MHz
4 pF
12
18 pF
24
1) CPD 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. ICC(opr) = CPD x VCC x fIN + ICC
5/11
5 Page 
74LX1G14
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
© The ST logo is a registered trademark of STMicroelectronics
© 2002 STMicroelectronics - Printed in Italy - All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco
Singapore - Spain - Sweden - Switzerland - United Kingdom - United States.
© http://www.st.com
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| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet 74LX1G14.PDF ] | |
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