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Details, datasheet, quote on part number:74LVX20TTR
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74LVX20
LOW VOLTAGE CMOS DUAL 4-INPUT NAND GATE WITH 5V TOLERANT INPUTS
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H IGH SPEED : tPD = 4.1ns (TYP.) at VCC = 3.3V 5V TOLERANT INPUTS INPUT VOLTAGE LEVEL : VIL=0.8V, VIH=2V at VCC=3V LOW POWER DISSIPATION: ICC = 2 µA (MAX.) at TA=25°C LOW NOISE: VOLP = 0.3V (TYP.) at VCC = 3.3V SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN) BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC(OPR) = 2V to 3.6V (1.2V Data Retention) PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 20 IMPROVED LATCH-UP IMMUNITY POWER DOWN PROTECTION ON INPUTS
SOP
TSSOP
ORDER CODES
PACKAGE SOP TSSOP TUBE 74LVX20M T&R 74LVX20MTR 74LVX20TTR
DESCRIPTION The 74LVX20 is a low voltage CMOS DUAL 4-INPUT NAND GATE fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power, battery operated and low noise 3.3V applications. PIN CONNECTION AND IEC LOGIC SYMBOLS
The internal circuit is composed of 3 stages including buffer output, which provides high noise immunity and stable output. 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. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
July 2001
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74LVX20
INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No 1, 9 2, 10 3, 11 4, 12 5, 13 6, 8 7 14 SYMBOL 1A to 2A 1B to 2B N.C. 1C to 2C 1D to 2D 1Y to 2Y GND V CC NAME AND FUNCTION Data Inputs Data Inputs Not Connected Data Inputs Data Inputs Data Outputs Ground (0V) Positive Supply Voltage
TRUTH TABLE
A L X X X H
X : Don`t Care
B X L X X H
C X X L X H
D X X X L H
Y H H H H L
ABSOLUTE MAXIMUM RATINGS
Symbol V CC VI VO IIK IOK IO Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Current Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7.0 -0.5 to +7.0 -0.5 to VCC + 0.5 - 20 ± 20 ± 25 ± 50 -65 to +150 300 Unit V V V mA mA mA mA °C °C
ICC or IGND DC VCC or Ground Current
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
Symbol V CC VI VO Top dt/dv Supply Voltage (note 1) Input Voltage Output Voltage Operating Temperature Input Rise and Fall Time (note 2) (VCC = 3.3V) Parameter Value 2 to 3.6 0 to 5.5 0 to VCC -55 to 125 0 to 100 Unit V V V °C ns/V
1) Truth Table guaranteed: 1.2V to 3.6V 2) VIN from 0.8V to 2.0V
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74LVX20
DC SPECIFICATIONS
Test Condition Symbol Parameter VCC (V) 2.0 3.0 3.6 2.0 3.0 3.6 2.0 3.0 3.0 VOL Low Level Output Voltage 2.0 3.0 3.0 II ICC Input Leakage Current Quiescent Supply Current 3.6 3.6 IO=-50 µA IO=-50 µA IO=-4 mA IO=50 µA IO=50 µA IO=4 mA VI = 5V or GND VI = VCC or GND TA = 25°C Min. 1.5 2.0 2.4 0.5 0.8 0.8 1.9 2.9 2.58 0.0 0.0 0.1 0.1 0.36 ± 0.1 2 2.0 3.0 1.9 2.9 2.48 0.1 0.1 0.44 ±1 20 Typ. Max. Value -40 to 85°C Min. 1.5 2.0 2.4 0.5 0.8 0.8 1.9 2.9 2.4 0.1 0.1 0.55 ±1 20 µA µA V V Max. -55 to 125°C Min. 1.5 2.0 2.4 0.5 0.8 0.8 Max. V Unit
VIH
High Level Input Voltage Low Level Input Voltage High Level Output Voltage
VIL
V
VOH
DYNAMIC SWITCHING CHARACTERISTICS
Test Condition Symbol Parameter VC C (V) 3.3 3.3 CL = 50 pF 3.3 0.8 TA = 25°C Min. Typ. 0.3 -0.5 2 V -0.3 Max. 0.5 Value -40 to 85°C Min. Max. -55 to 125°C Min. Max. Unit
VOLP VOLV VIHD
VILD
Dynamic Low Voltage Quiet Output (note 1, 2) Dynamic High Voltage Input (note 1, 3) Dynamic Low Voltage Input (note 1, 3)
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.
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74LVX20
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)
Test Condition Symbol Parameter VCC (V) 2.7 2.7 3.3(*) tOSLH tOSHL Output To Output Skew Time (note1, 2) 3.3(*) 2.7 3.3(*) CL (pF) 15 50 15 50 50 50 4.1 6.6 0.5 0.5 TA = 25°C Min. Typ. Max. 8.6 13.5 6.2 9.7 1.0 1.0 Value -40 to 85°C Min. 1.0 1.0 1.0 1.0 Max. 10.5 15.4 7.5 11.0 1.5 1.5 -55 to 125°C Min. 1.0 1.0 1.0 1.0 Max. 11.5 16.4 9.5 12.0 1.5 1.5 ns ns Unit
tPLH tPHL Propagation Delay Time
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW 2) Parameter guaranteed by design (*) Voltage range is 3.3V ± 0.3V
CA PACITIVE CHARACTERISTICS
Test Condition Symbol Parameter VCC (V) 3.3 3.3 TA = 25°C Min. Typ. 4 19 Max. 10 Value -40 to 85°C Min. Max. 10 -55 to 125°C Min. Max. 10 pF pF Unit
CIN CPD
Input Capacitance Power Dissipation Capacitance (note 1)
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/2 (per gate)
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74LVX20
TEST CIRCUIT
CL =15/50pF or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50)
W AVEFORM : PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
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