UNISONIC TECHNOLOGIES CO., LTD U74AHC3G17 CMOS IC NON-INVERTING SCHMITT TRIGGER DESCRIPTION The U74AHC3G17 is a high-speed triple Schmitt-trigger buffer. It provides three Schmitt-trigger buffers with the function Y=A. The trigger is capable of transforming slowly changing input signals into sharply defined, jitter-free output signals. TSSOP-8 FEATURES * Low power supply 1.0μA at 5.5V * Wide supply voltage range from 2V to 5.5V * Up to 5.5V inputs accept voltages * Symmetrical output impedance * High noise immunity * Balanced propagation delays APPLICATION * Astable multivibrators * Monostable multivibrators * Wave and pulse shapers ORDERING INFORMATION Ordering Number Lead Free Halogen Free U74AHC3G17L-P08-R U74AHC3G17G-P08-R U74AHC3G17L-P08-T U74AHC3G17G-P08-T www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd Package Packing TSSOP-8 TSSOP-8 Tape Reel Tube 1 of 6 QW-R502-694.A U74AHC3G17 CMOS IC PIN CONFIGURATION 1A 1 8 VCC 3Y 2 7 1Y 2A 3 6 3A GND 4 5 2Y FUNCTION TABLE INPUT nA L H LOGIC SYMBOL LOGIC DIAGRAM (one driver) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw OUTPUT nY L H 2 of 6 QW-R502-694.A U74AHC3G17 CMOS IC ABSOLUTE MAXIMUM RATING (unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC -0.5~7.0 V Input Voltage VIN -0.5~7.0 V Output Voltage VOUT 0~VCC V Input Diode Current (VI < -0.5V) IIK -20 mA Output Diode Current (VO < -0.5V or VO > VCC + 0.5V) IOK ±20 mA Output Source or Sink Current (-0.5V < VO < VCC + 0.5V) IOUT ±25 mA VCC or GND Current ICC ±75 mA PD mW Power Dissipation 250 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 MIN 2.0 0 0 -40 TYP 5.0 MAX 5.5 5.5 VCC +125 +25 UNIT V V V °C ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified) PARAMETER High-Level Output Voltage SYMBOL VOH Low-Level Output Voltage VOL Input Leakage Current Quiescent Supply Current Input Capacitance II(LEAK) ICC CIN SYMBOL VCC VI VO TA TEST CONDITIONS VI =VIH or VIL,IO =-50μA,VCC = 2.0V VI = VIH or VIL, IO = -50μA, VCC = 3.0V VI = VIH or VIL, IO = -50μA, VCC = 4.5V VI = VIH or VIL, IO = -4.0mA, VCC = 3.0V VI = VIH or VIL, IO = -8.0mA, VCC = 4.5V VI = VIH or VIL, IO = 50μA, VCC = 2.0V VI = VIH or VIL, IO = 50μA, VCC = 3.0V VI = VIH or VIL, IO = 50μA, VCC = 4.5V VI = VIH or VIL, IO = 4.0mA, VCC = 3.0V VI = VIH or VIL, IO = 8.0mA, VCC = 4.5V VI = VCC or GND, VCC = 5.5V, IO = 0 A VI = VCC or GND, IO = 0 A SYMBOL Positive-going Threshold VT+ Negative-going Threshold VT- Hysteresis (VT+ - VT-) VH MAX 0 0 0 0.1 0.1 0.1 0.36 0.36 0.1 1.0 10 UNIT V V μA μA pF (TA =25°C , unless otherwise specified) TEST CONDITIONS VCC = 3.0V VCC = 4.5V VCC = 5.5V VCC = 3.0V VCC = 4.5V VCC = 5.5V VCC = 3.0V VCC = 4.5V VCC = 5.5V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TYP 2.0 3.0 4.5 1.5 TRANSFER CHARACTERISTICS PARAMETER MIN 1.9 2.9 4.4 2.58 3.94 MIN 0.9 1.35 1.65 0.3 0.4 0.5 TYP MAX 2.2 3.15 3.85 UNIT V V 1.2 1.4 1.6 V 3 of 6 QW-R502-694.A U74AHC3G17 AC CHARACTERISTICS (TA =25°C, GND = 0V, tR = tF ≤ 3.0 ns) PARAMETER Propagation Delay from Input (nA) to Output (nY) CMOS IC SYMBOL tPLH/tPHL (tPD) TEST CONDITIONS VCC = 3.0 to 3.6V, CL = 15pF VCC = 3.0 to 3.6V, CL = 50pF VCC = 4.5 to 5.5V, CL = 15pF VCC = 4.5 to 5.5V, CL = 50pF MIN TYP 4.2 6.0 3.2 4.6 MAX UNIT 12.8 16.3 ns 8.6 10.6 TYP 10 UNIT pF OPERATING CHARACTERISTICS (TA =25°C) PARAMETER SYMBOL TEST CONDITIONS Power Dissipation Capacitance Per Gate CPD CL =15pF, f=10MHz (Note 1, 2) Notes: 1. CPD is used to determine the dynamic power dissipation (PD in μW). PD = CPD × VCC2 × fI × N + Σ(CL × VCC2 × fO) where: fI = input frequency in MHz; fO = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in Volts; N = number of inputs switching; Σ(CL × VCC2 × fO) = sum of the outputs. 2. The condition is VI = GND to VCC. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 6 QW-R502-694.A U74AHC3G17 CMOS IC WAVEFORMS Fig.1 Transfer characteristic VT+ VT- VI VH VO Fig.2 Definitions of VT+, VT- and VH UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R502-694.A U74AHC3G17 CMOS IC TEST CIRCUIT AND WAVEFORMS Definitions for test circuit: CL = Load capacitance including jig and probe capacitance. RT = Termination resistance should be equal to the output impedance ZO of the pulse generator. VCC 3.3V 3.0 to3.6V 5.0V 4.5 to 5.5V Inputs VIN GND to VCC GND to VCC GND to VCC GND to VCC GND to VCC GND to VCC GND to VCC GND to VCC tR, tF ≤3ns ≤3ns ≤3ns ≤3ns ≤3ns ≤3ns ≤3ns ≤3ns VM CL VCC/2 VCC/2 VCC/2 VCC/2 VCC/2 VCC/2 VCC/2 VCC/2 15pF 50pF 15pF 50pF 15pF 50pF 15pF 50pF 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 6 of 6 QW-R502-694.A