74LVX14TTR ,LOW VOLTAGE CMOS HEX SCHMITT INVERTER74LVX14LOW VOLTAGE CMOS HEX SCHMITT INVERTERWITH 5V TOLERANT INPUTS ■ HIGH SPEED : t = 6.8ns (TYP. ..
74LVX157 ,LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER WITH 5V TOLERANT INPUTSAbsolute Maximum Ratings are those values beyond which damage to the device may occur. Functional o ..
74LVX157 ,LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER WITH 5V TOLERANT INPUTS
74LVX157M ,LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER WITH 5V TOLERANT INPUTSapplicationscommon Select and Enable inputs. The four outputs
74LVX14M-74LVX14TTR
LOW VOLTAGE CMOS HEX SCHMITT INVERTER
1/8July 2001 HIGH SPEED :
tPD = 6.8ns (TYP.) at VCC = 3.3V 5V TOLERANT INPUTS LOW POWER DISSIPATION:CC = 2 μA (MAX.) at TA =25°C TYPICAL HYSTERESIS : 1V at VCC = 3.3V LOW NOISE: OLP = 0.3V (TYP .) at VCC = 3.3V SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN) BALANCED PROPAGATION DELAYS: PLH ≅ t PHL OPERATING VOLTAGE RANGE:CC (OPR) = 2V to 3.6V (1.2V Data Retention) PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 14 IMPROVED LATCH-UP IMMUNITY POWER DOWN PROTECTION ON INPUTS
DESCRIPTIONThe 74LVX14 is a low voltage CMOS HEX
SCHMITT INVERTER fabricated with sub-micron
silicon gate and double-layer metal wiring C2 MOS
technology. It is ideal for low power, battery
operated and low noise 3.3V applications.
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage.
This device can be used to interface 5V to 3V
system. It combines high speed performance with
the true CMOS low power consumption.
Pin configuration and function are the same as
those of the 74LVX00 but the 74LVX14 has
hysteresis between the positive and the negative
input threshold typically of 1V.
This together with its schmitt trigger function
allows it 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 2KV ESD immunity and transient excess
voltage.
74LVX14LOW VOLTAGE CMOS HEX SCHMITT INVERTER
WITH 5V TOLERANT INPUTS
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
74LVX142/8
INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
TRUTH TABLE
ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
RECOMMENDED OPERATING CONDITIONS 1) Truth Table guaranteed: 1.2V to 3.6V
74LVX143/8
DC SPECIFICATIONS
DYNAMIC SWITCHING CHARACTERISTICS 1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3.3V to threshold (VILD), 0V to threshold
(VIHD), f=1MHz.
74LVX144/8
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-
ing in the same direction, either HIGH or LOW
2) Parameter guaranteed by design
(*) Voltage range is 3.3V ± 0.3V
CAPACITIVE CHARACTERISTICS 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/6 (per gate)
74LVX145/8
TEST CIRCUIT CL =15/50pF or equivalent (includes jig and probe capacitance)
RT = ZOUT of pulse generator (typically 50Ω)
WAVEFORM : PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
