UNISONIC TECHNOLOGIES CO., LTD U74LVC74A CMOS IC DUAL POSITIVE-EDGETRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR AND PRESET DESCRIPTION The U74LVC74A is a dual positive-edge-triggered D-type flip-flop. The preset ( PRE ) and clear ( CLR ) input can set or reset the output, egardless of the levels f others inputs. When the PRE and CLR are inactive(high),data at the data input meeting the set-up time requirements is transferred to the outputs on the positive-going edge of the clock pulse. Following the hold-time interval, data D can be changed without affecting the levels at the outputs. FEATURES * 1.65V to 3.6V VCC Operation * Inputs Accept Voltages to 5.5V * Max tpd at 5.2ns of 3.3V * Typical VOLP<0.8V at VCC=3.3V, TA=25°C * Typical VOHV>2V at VCC=3.3V, TA=25°C ORDERING INFORMATION Ordering Number U74LVC74AG-S14-R U74LVC74AG-P14-R Package SOP-14 TSSOP-14 Packing Tape Reel Tape Reel MARKING www.unisonic.com.tw Copyright © 2013 Unisonic Technologies Co., Ltd 1 of 7 QW-R502-879.C U74LVC74A CMOS IC PIN CONFIGURATION FUNCTION TABLE (each gate) INPUT OUTPUT PRE CLR CLK D Q Q L H H L X X X X H L L H L L X X H H H H H ↑ ↑ H L H L H L H H H L X Q0 Q0 ＋: This configuration is unstable, as it is not persist when either PRE or CLR return to high level. LOGIC DIAGRAM (positive logic) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R502-879.C U74LVC74A CMOS IC ABSOLUTE MAXIMUM RATING (unless otherwise specified)(Note 1) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC -0.5~6.5 V Input Voltage VIN -0.5~ 6.5 V Output Voltage(active mode) VOUT -0.5~VCC+0.5 V Input Clamp Current(VIN<0) IIK -50(MAX) mA Output Clamp Current(VOUT<0) IOK -50(MAX) mA Output Current IOUT ±50 mA VCC or GND Current ICC ±100 mA Storage Temperature TSTG -65 ~ +150 °C Notes: 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 SYMBOL VCC VIN VOUT High-level input voltage VIH Low-level input voltage VIL High-level Output Current IOH Low-level Output Current IOL Input Transition Rise or Fall Rate Operating Temperature CONDITIONS VCC =1.65V~1.95V VCC=2.3V~2.7V VCC =2.7V~3.6V VCC =1.65V~1.95V VCC=2.3V~2.7V VCC =2.7V~3.6V VCC =1.65V VCC=2.3V VCC =2.7V VCC =3V VCC =1.65V VCC=2.3V VCC =2.7V VCC =3V ∆t/∆v TA UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 1.65 0 0 0.65×VCC 1.7 2 -40 TYP MAX 3.6 5.5 VCC UNIT V V V V 0.35×VCC 0.7 0.8 -4 -8 -12 -24 4 8 12 24 10 +85 V mA mA ns/V °C 3 of 7 QW-R502-879.C U74LVC74A CMOS IC STATIC CHARACTERISTICS PARAMETER High-Level Output Voltage Low-Level Output Voltage Input Leakage Current Quiescent Supply Current SYMBOL VOH VOL II(LEAK) IQ Additional Quiescent Supply Current ∆IQ Input Capacitance CIN TEST CONDITIONS IOH=-100uA VCC=1.65V~3.6V IOH=-4mA VCC=1.65V IOH=-8mA VCC=2.3V VCC=2.7V IOH=-12mA VCC=3V IOH=-24mA VCC=3V VCC=1.65V~3.6V IOL=100uA IOL=4mA VCC=1.65V IOL=8mA VCC=2.3V IOL=12mA VCC=2.7V IOL=24mA VCC=3V VCC=0V~3.6V VIN=5.5V or GND VCC=3.6V VIN=VCC or GND IOUT=0 VCC=2.7V to 3.6V One input at VCC-0.6V, Other inputs at VCC or GND VCC=3.3V, VIN=VCC or GND MIN VCC-0.2 1.2 1.7 2.2 2.4 2.2 TYP MAX UNIT V 0.2 0.45 0.7 0.4 0.55 V ±5 μA 10 μA 500 μA 5 pF DYNAMIC CHARACTERISTICS (Input: tR, tF≤2.5ns; PRR≤1MHz) PARAMETER Fclock Clock frequency SYMBOL fCLOCK Pulse duration tW Setup time before CLK↑ tsu Hold time ,data after CLK↑ th TEST CONDITIONS VCC=1.8V±0.15V VCC=2.5V±0.2V VCC=2.7V VCC=3.3V±0.3V PRE or CLR Low VCC=1.8V±0.15V CLK High or Low PRE or CLR Low VCC=2.5V±0.2V CLK High or Low PRE or CLR Low VCC=2.7V CLK High or Low PRE or CLR Low VCC=3.3V±0.3V CLK High or Low Data VCC=1.8V±0.15V PRE or CLR Inactive Data VCC=2.5V±0.2V PRE or CLR Inactive Data VCC=2.7V PRE or CLR Inactive Data VCC=3.3V±0.3V PRE or CLR Inactive VCC=1.8V±0.15V VCC=2.5V±0.2V VCC=2.7V VCC=3.3V±0.3V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 4.1 4.1 3.3 3.3 3.3 3.3 3.3 3.3 3.6 2.7 2.3 1.9 3.4 2.2 3 2 1 1 1 0 TYP MAX 83 83 83 150 UNIT MHZ ns ns ns 4 of 7 QW-R502-879.C U74LVC74A CMOS IC DYNAMIC CHARACTERISTICS See Fig. 1 and Fig. 2 for test circuit and waveforms. PARAMETER SYMBOL TEST CONDITIONS VCC=1.8V±0.15V VCC=2.5V±0.2V Maxinum Clock Pulse Frequency fmax VCC=2.7V VCC=3.3V±0.3V VCC=1.8V±0.15V, CL=30pF, RL=1KΩ VCC=2.5V±0.2V, CL=30pF, RL=500Ω Propagation delay from input tPLH/tPHL (CLK) to output(Q or Q) VCC=2.7V, CL=50pF, RL=500Ω VCC=3.3V±0.3V, CL=50pF, RL=500Ω VCC=1.8V±0.15V, CL=30pF, RL=1KΩ VCC=2.5V±0.2V, CL=30pF, RL=500Ω Propagation delay from input tPLH/tPHL ( PRE or CLR ) to output(Q or Q) VCC=2.7V, CL=50pF, RL=500Ω VCC=3.3V±0.3V, CL=50pF, RL=500Ω MIN 83 83 83 150 1 1 1 1 1 1 1 1 TYP MIN 24 24 26 TYP MAX UNIT MHz 7.1 4.4 6 5.2 6.9 4.6 6.4 5.4 ns ns OPERATING CHARACTERISTICS PARAMETER SYMBOL Power Dissipation Capacitance CPD TEST CONDITIONS VCC=1.8V, f=10MHz VCC=2.5V, f=10MHz VCC=3.3V, f=10MHz UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MAX UNIT pF pF pF 5 of 7 QW-R502-879.C U74LVC74A CMOS IC TEST CIRCUIT AND WAVEFORMS Note: CL includes probe and jig capacitance. Fig. 1 Load circuitry for switching times. VCC 1.8V±0.15V 2.5V±0.2V 2.7V 3.3V±0.3V Inputs VIN VCC VCC 2.7V 2.7V tR, tF ≤2ns ≤2ns ≤2.5ns ≤2.5ns VM CL RL VCC/2 VCC/2 1.5V VCC/2 30pF 30pF 50pF 50pF 1KΩ 500Ω 500Ω 500Ω Fig. 2 Propagation delay from input to output and input voltage waveforms. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 7 QW-R502-879.C U74LVC74A CMOS IC TEST CIRCUIT AND WAVEFORMS(Cont.) Fig. 3 PROPAGATION DELAY TIMES 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 7 of 7 QW-R502-879.C