M74HCT14 HEX SCHMITT INVERTER ■ ■ ■ ■ ■ ■ HIGH SPEED: tPD = 19ns (TYP.) at VCC = 4.5V LOW POWER DISSIPATION: ICC = 1µA(MAX.) at TA=25°C HIGH NOISE IMMUNITY : VH = 0.7V (TYP) at Vcc = 4.5V BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN) PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 14 DESCRIPTION The M74HCT14 is an high speed CMOS HEX SCHMITT INVERTER fabricated with silicon gate C2MOS technology. Pin configuration and function are the same as those of the M74HCT04 but all inputs have 0.7 V hysteresis level. This together with its schmitt trigger function allows it to be used on line receiver with slow rise/fall input signals. DIP SOP TSSOP ORDER CODES PACKAGE TUBE DIP SOP TSSOP M74HCT14B1R M74HCT14M1R T&R M74HCT14RM13TR M74HCT14TTR The M74HCT14 is designed to directly interface HSC2MOS systems with TTL and NMOS components. All inputs are equipped with protection circuits against static discharge and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/8 M74HCT14 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL 1, 3, 5, 9, 11, 13 2, 4, 6, 8, 10, 12 7 NAME AND FUNCTION 1A to 6A Data Inputs 1Y to 6Y Data Outputs GND VCC Ground (0V) 14 Positive Supply Voltage TRUTH TABLE A Y L H H L ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Supply Voltage Value Unit -0.5 to +7 V VI DC Input Voltage -0.5 to VCC + 0.5 V VO DC Output Voltage -0.5 to VCC + 0.5 ± 20 V mA IIK DC Input Diode Current IOK DC Output Diode Current ± 20 mA IO DC Output Current ± 25 mA ± 50 mA ICC or IGND DC VCC or Ground Current PD Power Dissipation Tstg Storage Temperature TL Lead Temperature (10 sec) 500(*) mW -65 to +150 °C 300 °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied (*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C RECOMMENDED OPERATING CONDITIONS Symbol VCC 2/8 Parameter Value Unit Supply Voltage 4.5 to 5.5 V VI Input Voltage 0 to VCC V VO Output Voltage 0 to VCC V Top Operating Temperature -55 to 125 °C M74HCT14 DC SPECIFICATIONS Test Condition Symbol Parameter High Level Threshold Voltage VN Low Level Threshold Voltage VH Hysteresis Voltage VOH High Level Output Voltage 4.5 Low Level Output Voltage 4.5 VOL II ICC Input Leakage Current Quiescent Supply Current TA = 25°C VCC (V) VP Value 4.5 5.5 4.5 5.5 4.5 5.5 -40 to 85°C -55 to 125°C Min. Typ. Max. Min. Max. Min. Max. 1.2 1.4 0.5 0.6 0.4 0.4 1.55 1.75 0.85 1.1 0.7 0.7 1.9 2.1 1.2 1.4 1.4 1.5 1.2 1.4 0.5 0.6 0.4 0.4 1.9 2.1 1.2 1.4 1.4 1.5 1.2 1.4 0.5 0.6 0.4 0.4 1.9 2.1 1.2 1.4 1.4 1.5 IO=-20 µA 4.4 4.5 4.4 4.4 IO=-4.0 mA 4.18 4.31 4.13 4.10 Unit V V V V IO=20 µA 0.0 0.1 0.1 0.1 IO=4.0 mA 0.17 0.26 0.33 0.40 V 5.5 VI = VCC or GND ± 0.1 ±1 ±1 µA 5.5 VI = VCC or GND 1 10 20 µA AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns) Test Condition Symbol Parameter tTLH tTHL Output Transition Time tPLH tPHL Propagation Delay Time Value TA = 25°C VCC (V) Min. -40 to 85°C -55 to 125°C Min. Min. Max. Unit Typ. Max. Max. 4.5 8 15 19 22 ns 4.5 19 30 38 45 ns CAPACITIVE CHARACTERISTICS Test Condition Symbol Parameter VCC (V) Value TA = 25°C Min. Typ. Max. 10 CIN Input Capacitance 5 CPD Power Dissipation Capacitance (note 1) 45 -40 to 85°C -55 to 125°C Min. Min. Max. 10 Unit Max. 10 pF pF 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 3/8 M74HCT14 TEST CIRCUIT CL = 50pF or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50Ω) WAVEFORM 1: PROPAGATION DELAY TIMES (f=1MHz; 50% duty cycle) 4/8 M74HCT14 Plastic DIP-14 MECHANICAL DATA mm. inch DIM. MIN. a1 0.51 B 1.39 TYP MAX. MIN. TYP. MAX. 0.020 1.65 0.055 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 F 7.1 0.280 I 5.1 0.201 L Z 3.3 1.27 0.130 2.54 0.050 0.100 P001A 5/8 M74HCT14 SO-14 MECHANICAL DATA DIM. mm. 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 0.050 e3 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.) PO13G 6/8 M74HCT14 TSSOP14 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. MAX. 1.2 A1 0.05 A2 0.8 b 0.047 0.15 0.002 0.004 0.006 1.05 0.031 0.039 0.041 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 D 4.9 5 5.1 0.193 0.197 0.201 E 6.2 6.4 6.6 0.244 0.252 0.260 E1 4.3 4.4 4.48 0.169 0.173 0.176 1 e 0.65 BSC K 0° L 0.45 A 0.60 0.0256 BSC 8° 0° 0.75 0.018 8° 0.024 0.030 A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 0080337D 7/8 M74HCT14 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 © 2001 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom © http://www.st.com 8/8