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74V2G14STR
TRIPLE SHMITT INVERTER
1/10May 2002 HIGH SPEED: tPD = 3.0ns (TYP.) at VCC = 5V LOW POWER DISSIPATION:CC = 1μA(MAX.) at TA =25°C TYPICAL HYSTERESIS:
VH = 800mV at VCC = 4.5V H = 500mV at VCC = 3.0V POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 8mA (MIN) at VCC = 4.5V
IIOH| = IOL = 4mA (MIN) at VCC = 3.0V BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL OPERATING VOLTAGE RANGE:CC (OPR) = 2V to 5.5V IMPROVED LATCH-UP IMMUNITY
DESCRIPTIONThe 74V2G14 is an advanced high-speed CMOS
TRIPLE SCHMITT TRIGGER INVERTER
fabricated with sub-micron silicon gate and
double-layer metal wiring C2 MOS tecnology.
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 all inputs
and outputs and 0 to 7V can be accepted on
inputs with no regard to the supply voltage.
Pin configuration and function are the same as
those of the 74V2G04, but 74V2G14 has
hysteresis on inputs.
This device can be used to interface 5V to 3V
systems and it is ideal for portable applications
like personal digital assistant, camcorder and all
battery-powered equipment.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them ESD immunity and transient excess voltage.
74V2G14TRIPLE SCHMITT INVERTER
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
74V2G142/10
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.
1) Vcc=0V
2) High or Low State
RECOMMENDED OPERATING CONDITIONS
74V2G143/10
DC SPECIFICATIONS
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)
(*) Voltage range is 3.3V ± 0.3V
(**) Voltage range is 5.0V ± 0.5V
74V2G144/10
CAPACITANCE 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/3
DYNAMIC SWITCHING CHARACTERISTICS 1) Number of output defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining outputs is
measured in the LOW state.
TEST CIRCUIT CL = 15/50pF or equivalent (includes jig and probe capacitance)
RT = ZOUT of pulse generator (typically 50Ω)
74V2G145/10
WAVEFORM: PROPAGATION DELAY (f=1MHz; 50% duty cycle)
74V2G146/10
