UNISONIC TECHNOLOGIES CO., LTD U74LCX74 CMOS IC LOW VOLTAGE DUAL D-TYPE POSITIVE EDGE-TRIGGERED FLIP-FLOP WITH 5V TOLERANT INPUTS DESCRIPTION The U74LCX74 is a dual D-type flip-flop with Asynchronous Clear and Set inputs and complementary (Q, Q ) outputs. Information at the input is transferred to the outputs on the positive edge of the clock pulse. After the Clock Pulse input threshold voltage has been passed, the Data input is locked out and information present will not be transferred to the outputs until the next rising edge of the Clock Pulse input. Asynchronous inputs: LOW input to S D (Set) sets Q to HIGH level LOW input to CD (Clear) sets Q to LOW level Clear and Set are independent of clock Simultaneous LOW on CD and S D makes both Q and Q high FEATURES * 2.3V-3.6V VCC specifications provided * 5V tolerant inputs * 7.0 ns tPD max (VCC=3.3V), ICC=10μA (max.) * Power down high impedance inputs and outputs * ±24mA output drive (VCC=3.0V) ORDERING INFORMATION Ordering Number U74LCX74G-P14-R Package TSSOP-14 Packing Tape Reel MARKING www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd 1 of 7 QW-R502-999.B U74LCX74 CMOS IC PIN CONFIGURATION PIN DESCRIPTIONS Pin Names D1, D2 CP1, CP2 C D1 , C D 2 Description Data inputs Clock Pulse Inputs Direct Clear Inputs S D1 , S D 2 Direct Set Inputs Q1, Q1 , Q2, Q2 Outputs FUNCTION TABLE (each gate) INPUT OUTPUT SD CD CP D Q Q L H L H H H L L H H X X X ↑ ↑ X X X H L H L H H L L H H L H H H L X Q0 Q0 Function Asynchronous Set Asynchronous Clear Undetermined Load and Read Register Hold H=High Voltage Level; L=Low Voltage Level; X=Immaterial; ↑=Low-to-High Clock Transition; Q0 ( Q0 )=Previous Q( Q ) before Low-to-High Transition of Clock UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R502-999.B U74LCX74 CMOS IC LOGIC DIAGRAM (positive logic) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 7 QW-R502-999.B U74LCX74 CMOS IC ABSOLUTE MAXIMUM RATING (unless otherwise specified)(Note 1) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC -0.5~7.0 V Input Voltage VIN -0.5~ 7.0 V Output Voltage VOUT -0.5~VCC+0.5 V Input Diode Current(VI<GND) IIK -50 mA Output Diode Current(VO<GND or VO>VCC) IOK ±50 mA Output Current IOUT ±50 mA VCC or GND Current ICC ±100 mA Ground Current IGND ±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 SYMBOL VCC VIN VOUT Supply Voltage Input Voltage Output Voltage Input Transition Rise or Fall Rate ∆t/∆v TA Operating Temperature CONDITIONS Input Edge Rate, VIN=0.8V-2V, VCC=3v MIN 2.0 0 0 TYP MAX 3.6 5.5 VCC UNIT V V V 0 10 ns/V -40 +85 °C MAX UNIT STATIC CHARACTERISTICS (TA=-40°C to +85°C, unless otherwise specified) PARAMETER SYMBOL High-level input voltage VIH Low-level input voltage VIL High-Level Output Voltage VOH Low-Level Output Voltage Input Leakage Current Quiescent Supply Current Increase ICC per input Power-Off Leakage Current Input Capacitance Output Capacitance VOL II(LEAK) IQ ∆IQ IOFF CIN COUT TEST CONDITIONS MIN VCC=2.3V to 2.7V 1.7 VCC =2.7V to 3.6V 2.0 VCC=2.3V to 2.7V VCC =2.7V to 3.6V VCC=2.3V to 3.6V, IOH=-100μA VCC-0.2 VCC=2.3V, IOH=-8mA 1.8 VCC=2.7V, IOH=-12mA 2.2 VCC=3V, IOH=-18mA 2.4 VCC=3V, IOH=-24mA 2.2 VCC=2.3V to 3.6V, IOL=100uA VCC=2.3V, IOL=8mA VCC=2.7V, IOL=12mA VCC=3V, IOL=16mA VCC=3V, IOL=24mA VCC =2.3V ~ 3.6V, VIN=0 ~ 5.5V VCC = 2.3V to 3.6V, VIN= VCC or GND VCC = 2.3V to 3.6V, 3.6V≤VIN≤5.5V VCC=2.3V to 3.6V, VIH=VCC-0.6V VCC=0, VIN or VOUT = 5.5V VCC=Open, VI=0 or VCC VCC=3.3V, VI=0 or VCC UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TYP V 0.7 0.8 V V 0.2 0.6 0.4 0.4 0.55 ±5 10 ±10 500 10 7.0 8.0 V μA μA μA μA pF pF 4 of 7 QW-R502-999.B U74LCX74 CMOS IC DYNAMIC CHARACTERISTICS (Input: tr, tf =3ns, f=1MHz, TA= -40°C to 85°C, RL=500Ω) PARAMETER Conditions VCC=2.5V±0.2V, CL=30pF Maximum Clock Frequency fMAX VCC=2.7V, CL=50pF VCC=3.3V±0.3V, CL=50pF VCC=2.5V±0.2V, CL=30pF Propagation Delay tPHL/tPLH VCC=2.7V, CL=50pF CPn to Qn or Qn VCC=3.3V±0.3V, CL=50pF VCC=2.5V±0.2V, CL=30pF Propagation Delay tPHL/tPLH VCC=2.7V, CL=50pF CDn or S Dn to Qn or Qn VCC=3.3V±0.3V, CL=50pF VCC=2.5V±0.2V, CL=30pF Setup Time tS VCC=2.7V, CL=50pF VCC=3.3V±0.3V, CL=50pF VCC=2.5V±0.2V, CL=30pF Hold Time tH VCC=2.7V, CL=50pF VCC=3.3V±0.3V, CL=50pF VCC=2.5V±0.2V, CL=30pF Pulse Width CP tW VCC=2.7V, CL=50pF VCC=3.3V±0.3V, CL=50pF VCC=2.5V±0.2V, CL=30pF tW VCC=2.7V, CL=50pF Pulse Width and CDn , S Dn VCC=3.3V±0.3V, CL=50pF See Fig. 1 and Fig. 2 for test circuit and waveforms. SYMBOL MIN 150 150 150 1.5 1.5 1.5 1.5 1.5 1.5 4.0 2.5 2.5 2.0 1.5 1.5 4.0 3.3 3.3 4.0 3.6 3.3 TYP MIN TYP 25 MAX UNIT MHZ 8.4 8.0 7.0 8.4 8.0 7.0 ns ns ns ns ns ns OPERATING CHARACTERISTICS PARAMETER Power Dissipation Capacitance SYMBOL TEST CONDITIONS CPD VCC=3.3V, VI=0V or VCC, f=10MHz UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MAX UNIT pF 5 of 7 QW-R502-999.B U74LCX74 CMOS IC TEST CIRCUIT AND WAVEFORMS From Output CL RL TEST CIRCUIT Note: CL includes probe and jig capacitance. Fig. 1 Load circuitry for switching times. VCC 2.5V±0.2V 2.7V 3.3V±0.3V VM VCC/2 1.5V 1.5V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw CL 30pF 50pF 50pF RL 500Ω 500Ω 500Ω 6 of 7 QW-R502-999.B U74LCX74 CMOS IC TEST CIRCUIT AND WAVEFORMS(Cont.) Fig. 2 Propagation delay from input to output and input voltage waveforms. 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-R502-999.B