74LVX27 LOW VOLTAGE TRIPLE 3-INPUT NOR GATE ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ HIGH SPEED: tPD = 4.1 ns (TYP.) at VCC = 3.3V INPUT VOLTAGE LEVEL: VIL = 0.8V, VIH = 2V at VCC = 3V LOW POWER DISSIPATION: ICC = 2 µA (MAX.) at TA = 25 oC LOW NOISE: VOLP = 0.3 V (TYP.) at VCC = 3.3V SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4 mA (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 27 IMPROVED LATCH-UP IMMUNITY POWER DOWN PROTECTION ON INPUTS DESCRIPTION The 74LVX27 is an advanced high-speed CMOS TRIPLE 3-INPUT NOR GATE fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It has similar high speed performance of equivalent Bipolar Schottky TTL combined with true CMOS low M (Micro Package) T (TSSOP Package) ORDER CODES : 74LVX27M 74LVX27T power dissipation. 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. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS May 1999 1/8 74LVX27 INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL 1, 3, 9 1A to 3A Data Inputs NAME AND FUNCT ION 2, 4, 10 1B to 3B Data Inputs 13, 5, 11 1C to 3C Data Inputs 12, 6, 8 1Y to 3Y Data Outputs 7 GND Ground (0V) 14 VCC Positive Supply Voltage TRUTH TABLE A B C Y L L L H H X X L X H X L X X H L X:”H” or ”L” ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Supply Voltage VI DC Input Voltage VO DC Output Voltage IIK Value Unit -0.5 to +7.0 V -0.5 to +7.0 V -0.5 to VCC + 0.5 V DC Input Diode Current - 20 mA IOK DC Output Diode Current ± 20 mA IO DC Output Current ± 25 mA ± 50 mA ICC or IGND DC VCC or Ground Current Tstg TL Storage Temperature Lead Temperature (10 sec) -65 to +150 o 300 o C C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. RECOMMENDED OPERATING CONDITIONS Symbol Parameter Unit 2 to 3.6 V VI Input Voltage 0 to 5.5 V VO Output Voltage Top Operating Temperature: dt/dv Input Rise and Fall Time (VCC = 3V) (note 2) 1) Truth Table guaranteed: 1.2V to 3.6V 2) VIN from 0.8V to 2V 2/8 Valu e Supply Voltage (note 1) VCC 0 to VCC -40 to +85 0 to 100 V o C ns/V 74LVX27 DC SPECIFICATIONS Symb ol VIH VIL VOH Parameter High Level Input Voltage Low Level Input Voltage Test Co nditions Min. 1.5 1.5 3.0 2.0 2.0 3.6 2.4 ICC T yp. Max. Min. Max. V 2.4 2.0 0.5 0.5 3.0 0.8 0.8 3.6 0.8 0.8 High Level Output Voltage 2.0 Low Level Output Voltage 2.0 3.0 3.0 V I (* ) = V IL VI(*) = VIH or VIL I O =-50 µA 1.9 2.0 1.9 IO=-50 µA 2.9 3.0 2.9 IO=-4 mA 2.58 V V 2.48 IO=50 µA 0.0 0.1 0.1 IO=50 µA 0.0 0.1 0.1 IO=4 mA V 0.36 0.44 Input Leakage Current 3.6 VI = 5V or GND ±0.1 ±1 µA Quiescent Supply Current 3.6 VI = VCC or GND 2 20 µA 3.0 II Un it -40 to 85 o C 2.0 3.0 VOL Valu e T A = 25 oC V CC (V) (*) All outputs loaded. DYNAMIC SWITCHING CHARACTERISTICS Symb ol Parameter Test Co nditions Dynamic Low Voltage Quiet Output (note 1, 2) 3.3 VIHD Dynamic High Voltage Input (note 1, 3) 3.3 VILD Dynamic Low Voltage Input (note 1, 3) 3.3 VOLP VOLV Valu e o -40 to 85 C Min. T yp. Max. 0.3 0.5 -0.5 -0.3 2 C L = 50 pF Un it o T A = 25 C V CC (V) Min. Max. V 0.8 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 to3.3V. Inputs under test switching: 3.3V to threshold (VILD), 0V to threshold (VIHD). f=1MHz 3/8 74LVX27 AC ELECTRICAL CHARACTERISTICS (Input t r = tf =3 ns) Symb ol Parameter T est Con ditio n CL (pF) V CC (V) tPLH tPHL tOSLH tOSHL Propagation Delay Time Output to Output Skew Time (note 1, 2) 2.7 2.7 15 50 3.3(*) 3.3(*) 2.7 3.3(*) 15 50 50 Valu e T A = 25 oC -40 to Min. T yp. Max. Min. 8.6 1.0 13.5 1.0 4.1 6.6 6.2 9.7 1.5 1.5 50 1.0 1.0 Un it 85 o C Max. 10.5 15.4 7.5 11.0 1.5 1.5 ns ns 1) Skew is defined as the absolute value of the difference between the actual propagation delay for any twooutputs 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 CAPACITIVE CHARACTERISTICS Symb ol Parameter Test Co nditions V CC (V) Valu e T A = 25 oC Min. Un it -40 to 85 o C T yp. Max. C IN Input Capacitance 3.3 4 10 CPD Power Dissipation Capacitance (note 1) 3.3 19 Min. Max. 10 pF pF 1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto Test Circuit).Average operting current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN + ICC/3(per Gate) 4/8 74LVX27 TEST CIRCUIT CL = 15/50 pF or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50Ω) WAVEFORM: PROPAGATION DELAYS (f=1MHz; 50% duty cycle) 5/8 74LVX27 SO-14 MECHANICAL DATA mm DIM. MIN. TYP. A a1 inch MAX. MIN. TYP. 1.75 0.1 0.068 0.2 a2 MAX. 0.003 0.007 1.65 0.064 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 0.019 c1 45 (typ.) D 8.55 8.75 0.336 0.344 E 5.8 6.2 0.228 0.244 e 1.27 e3 0.050 7.62 0.300 F 3.8 4.0 0.149 0.157 G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.019 0.050 M S 0.68 0.026 8 (max.) P013G 6/8 74LVX27 TSSOP14 MECHANICAL DATA mm DIM. MIN. inch TYP. A MAX. MIN. TYP. MAX. 1.1 0.433 A1 0.05 0.10 0.15 0.002 0.004 0.006 A2 0.85 0.9 0.95 0.335 0.354 0.374 b 0.19 0.30 0.0075 0.0118 c 0.09 0.20 0.0035 0.0079 D 4.9 5 5.1 0.193 0.197 0.201 E 6.25 6.4 6.5 0.246 0.252 0.256 E1 4.3 4.4 4.48 0.169 0.173 0.176 e 0.65 BSC 0.0256 BSC K 0o 4o 8o 0o 4o 8o L 0.50 0.60 0.70 0.020 0.024 0.028 A A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 7/8 74LVX27 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. Specification 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 trademark of STMicroelectronics 1999 STMicroelectronics – Printed in Italy – All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. http://www.st.com . 8/8