UNISONIC TECHNOLOGIES CO., LTD U74AHC1G79 CMOS IC SINGLE POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOP DESCRIPTION The UTC U74AHC1G79 is a positive-edge-triggered D-type flip-flop. Information on the data input is transferred to the Q output on the LOW-to-HIGH transition of the clock pulse. The D input must be stable one set-up time prior to the LOW-to-HIGH clock transition for predictable operation. FEATURES * Wide supply voltage range from 2.0V to 5.5V * Symmetrical output impedance * Balanced propagation delays * High noise immunity ORDERING INFORMATION Ordering Number U74AHC1G79G-AE5-R U74AHC1G79G-AL5-R Package SOT-23-5 SOT-353 Packing Tape Reel Tape Reel MARKING www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 5 QW-R126-028.A U74AHC1G79 CMOS IC PIN CONFIGURATION FUNCTION TABLE (each gate) INPUTS CP ↑ ↑ L D L H X OUTPUT Q L H Q LOGIC DIAGRAM (positive logic) Logic symbol UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw IEC logic symbol 2 of 5 QW-R126-028.A U74AHC1G79 CMOS IC ABSOLUTE MAXIMUM RATING PARAMETER Supply Voltage Input Voltage Output Voltage Continuous VCC or GND Current Continuous Output Current Input Clamp Current Output Clamp Current SYMBOL VCC VIN VOUT CONDITIONS RATINGS -0.5 ~ +7.0 -0.5 ~ +7.0 -0.5 ~ VCC +0.5 UNIT V V V ±50 mA ±25 -20 mA mA ±20 mA ICC IOUT IIK IOK -0.5V<VOUT<VCC+0.5V VIN< -0.5 VOUT< -0.5 or VOUT>VCC+0.5V (Note 2) °C Operating Temperature TOPR -40 ~ + 85 Storage Temperature Range TSTG -65 ~ + 150 °C Notes: 1. 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. 2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. RECOMMENDED OPERATING CONDITIONS PARAMETER Supply Voltage Input Voltage Output Voltage Operating Temperature Input Transition Rise or Fall Rate SYMBOL VCC VIN VOUT TA ∆t/∆v TEST CONDITIONS Operating High or low state MIN 2.0 0 0 -40 TYP 5.0 VCC=3.3 ± 0.3V VCC=5.0 ± 0.5V MAX 5.5 5.5 VCC +85 100 20 UNIT V V V °C ns/V ns/V MAX UNIT V V V V V V V V V ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified) PARAMETER SYMBOL High-level Input Voltage VIH Low-level Input Voltage VIL High-level output voltage (all outputs) VOH High-Level Output Voltage Low-level output voltage (all outputs) VOL Low-Level Output Voltage Input Leakage Current II(LEAK) Quiescent Supply Current ICC Input Capacitance CIN TEST CONDITIONS VCC=2.0V VCC=3.0V VCC=5.5V VCC=2.0V VCC=3.0V VCC=5.5V VCC=2.0V VIN=VIH or VIL, VCC=3.0V IOH=-50μA VCC=4.5V VCC=3.0V, VIN=VIH or VIL, IOH=-4.0mA VCC=4.5V, VIN=VIH or VIL, IOH=-8.0mA VCC=2.0V VIN=VIH or VIL, VCC=3.0V IOH=50μA VCC=4.5V VCC=3.0V, VIN=VIH or VIL, IOH=4.0mA VCC=4.5V, VIN=VIH or VIL, IOH=8.0mA VCC=5.5V, VIN=VCC or GND VCC=5.5V, VIN=VCC or GND, IOUT=0 VIN=VCC or GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 1.5 2.1 3.85 TYP 0.5 0.9 1.65 1.9 2.9 4.4 2.0 3.0 4.5 2.58 V 3.94 V 1.5 0.1 0.1 0.1 V V V 0.36 V 0.36 V ±0.1 μA 1.0 μA 10 pF 3 of 5 QW-R126-028.A U74AHC1G79 SWITCHING CHARACTERISTICS (GND=0V, tr = tf ≤ 3.0ns, TA =25°C , unless otherwise specified) PARAMETER maximum clock pulse frequency Propagation delay from input (CP) to output (Q) SYMBOL fMax TEST CONDITIONS VCC=4.5V ~ 5.5V CL=15pF tPLH / tPHL CL=50pF MIN TYP MAX 90 VCC=3.0V ~ 3.6V VCC=4.5V ~ 5.5V VCC=3.0V ~ 3.6V VCC=4.5V ~ 5.5V UNIT MHz 4.9 3.5 6.9 5.1 8.4 5.6 12 8 ns ns ns ns TYP MAX UNIT TIMING REQUIREMENTS PARAMETER clock pulse width High or Low set-up time D to CP hold time D to CP CMOS IC SYMBOL TEST CONDITIONS MIN tw VCC=4.5V ~ 5.5V 3.0 tsu th VCC=4.5V ~ 5.5V VCC=4.5V ~ 5.5V 3.0 2.0 ns 1.0 1.0 ns ns OPERATING CHARACTERISTICS (TA =25°C , unless otherwise specified) PARAMETER Power Dissipation Capacitance SYMBOL CPD TEST CONDITIONS CL=50pF, f=1MHz UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN TYP 15 MAX UNIT pF 4 of 5 QW-R126-028.A U74AHC1G79 CMOS IC TEST CIRCUIT AND WAVEFORMS From Output (Note) CL VIN INPUT GND to VCC GND to 3.0V VM INPUT 50% VCC 1.5V VM OUTPUT 50% VCC 50% VCC Notes: 1. CL includes probe and jig capacitance. 2. All input pulses are supplied by generators having the following characteristics: PRR ≤1MHz, ZO = 50Ω, tr ≤3ns, tf ≤3ns. 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 5 of 5 QW-R126-028.A