UNISONIC TECHNOLOGIES CO., LTD U74AHCT14 CMOS IC HEX SCHMITT-TRIGGER INVERTER DESCRIPTION The U74AHCT14 is a high speed Si-gate CMOS device which contains six independent Schmitt-trigger inverters and they perform the function Y=A. The device have different input threshold levels for positive-going (VT+) and negative-going(VT-) signals because of the Schmitt-trigger action in the input. FEATURES * All inputs have Schmitt-trigger action * Inputs are TTL-Voltage compatible * Balanced propagation delays ORDERING INFORMATION Ordering Number Lead Free Halogen Free U74AHCT14L-S14-R U74AHCT14G-S14-R U74AHCT14L-P14-R U74AHCT14G-P14-R www.unisonic.com.tw Copyright © 2012 Unisonic Technologies Co., Ltd Package Packing SOP-14 TSSOP-14 Tape Reel Tape Reel 1 of 4 QW-R502-799.A U74AHCT14 CMOS IC PIN CONFIGURATION FUNCTION TABLE (each gate) INPUT A L H OUTPUT Y H L LOGIC DIAGRAM (positive logic) IEC logic symbol UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 4 QW-R502-799.A U74AHCT14 CMOS IC ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified)(Note 1) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC -0.5~7 V Input Voltage VIN -0.5~7 V Output Voltage(active mode) VOUT -0.5~VCC+0.5 V Input Clamp Current(VIN<0) IIK -20 mA Output Clamp Current(VOUT<0) IOK ±20 mA Output Current IOUT ±25 mA VCC or GND Current ICC ±50 mA Storage Temperature TSTG -65 ~ +150 °C Note 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. RECOMMENDED OPERATING COMDITIONS PARAMETER Supply Voltage Input Voltage Output Voltage Operating Temperature SYMBOL CONDITIONS VCC Operating VIN VOUT TA SYMBOL VT+ VT- Hysteresis Voltage (VT+-VT-) △VT High-Level Output Voltage VOH Low-Level Output Voltage VOL Input Leakage Current Quiescent Supply Current Additional Quiescent Supply Current Input Capacitance II(LEAK) ICC ΔICC CIN TEST CONDITIONS VCC =4.5V VCC =5.5V VCC =4.5V VCC =5.5V VCC =4.5V VCC =5.5V VCC =4.5V, IOH=-50μA VCC =4.5V, IOH=-8mA VCC =4.5V, IOL=50μA VCC =4.5V, IOL=8mA VCC =0V ~ 5.5V, VIN=VCC or GND VCC = 5.5V, VIN=5.5V or GND, IOUT=0 VCC = 5.5V, One input at 3.4V, other inputs at VCC or GND VCC =3.3V, VIN=VCC or GND MAX 5.5 5.5 VCC +85 UNIT V V V °C MIN 0.9 1 0.5 0.6 0.4 0.4 4.4 3.94 TYP MAX 1.9 2.1 1.5 1.7 1.4 1.5 UNIT V V V V 0.1 0.36 ±0.1 2 μA μA 1.35 mA 2 10 pF TYP 4 5.5 MAX 7 8 UNIT TYP 12 MAX UNIT pF 0.1 V DYNAMIC CHARACTERISTICS (Input: tR, tF≤3ns; PRR≤1MHz) See Fig. 1 and Fig. 2 for test circuit and waveforms. PARAMETER SYMBOL TEST CONDITIONS VCC=5V±0.5V, CL =15pF Propagation delay from input tPLH/tPHL (A or B) to output(Y) VCC=5V±0.5V, CL =50pF TYP STATIC CHARACTERISTICS (TA=25°C, unless otherwise specified) PARAMETER Positive-Going Input Threshold Voltage Negative-Going Input Threshold Voltage MIN 4.5 0 0 -40 MIN ns OPERATING CHARACTERISTICS PARAMETER Power Dissipation Capacitance SYMBOL TEST CONDITIONS Cpd No load, f=1MHz, VCC=5V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 3 of 4 QW-R502-799.A U74AHCT14 CMOS IC TEST CIRCUIT AND WAVEFORMS Fig. 1 Load circuitry for switching times. Note: CL includes probe and jig capacitance. Fig. 2 Propagation delay from input(A) to output(Y) and Output transition time. UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 4 QW-R502-799.A