UNISONIC TECHNOLOGIES CO., LTD U74LVC240 CMOS IC OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS DESCRIPTION The U74LVC240 contains two 4-bit line drivers with separate output-enable( OE ) inputs. When OE is low, the device passes data from the A to the Y. When OE is high, the outputs are in the high-impedance state. The U74LVC240 can be used in a mixed 3.3V/5V system environment. This device has power-down protective circuit, preventing device destruction when it is powered down. FEATURES * Operate From 1.65V to 3.6V * Input Accept Voltages to 5.5V * Partial-Power-Down Mode Operation * Max tpd is 5.9ns at 3.3V ORDERING INFORMATION Ordering Number U74LVC240G-S20-T U74LVC240G-S20-R U74LVC240G-P20-T U74LVC240G-P20-R Package SOP-20 SOP-20 TSSOP-20 TSSOP-20 Packing Tube Tape Reel Tube Tape Reel MARKING www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd 1 of 7 QW-R126-009.A U74LVC240 CMOS IC PIN CONFIGURATION FUNCTION TABLE INPUT OUTPUT OE A Y H L L × H L Z L H UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R126-009.A U74LVC240 LOGIC DIAGRAM (positive logic) LOGIC SYMBOL UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw CMOS IC 3 of 7 QW-R126-009.A U74LVC240 CMOS IC ABSOLUTE MAXIMUM RATING (TA =25°C, unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC -0.5~6.5 V Input Voltage VIN -0.5~ 6.5 V Voltage applied to output in high-impedance -0.5~6.5 or power-off state VOUT V Voltage applied to output in high or low state -0.5~VCC+0.5 Input Clamp Current IIK -50 mA Output Clamp Current IOK -50 mA Output Current IOUT ±50 mA Vcc or GND Current ICC ±100 mA Storage Temperature 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 (TA =25°C, unless otherwise specified) PARAMETER SYMBOL Supply Voltage VCC High-level input voltage VIH TEST CONDITIONS Operating Data retention only VCC = 1.65 V ~ 1.95 V VCC = 2.3 V ~ 2.7 V VCC = 2.7 V ~ 3.6 V MIN 1.65 1.50 0.65× VCC 1.7 2 VCC = 1.65 V ~ 1.95 V Low-level input voltage VIL Input voltage VIN Output Voltage VOUT High level output current IOH Low level output current IOL Input transition rise or fall rate Operating free-air temperature ∆t/∆v TA UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw VCC = 2.3 V ~ 2.7 V VCC = 2.7 V ~ 3.6 V High or low state 3 state VCC = 1.65 V VCC = 2.3 V VCC = 2.7 V VCC = 3 V VCC = 1.65 V VCC = 2.3 V VCC = 2.7 V VCC = 3 V 0 0 0 0 -40 TYP MAX 3.6 UNIT V V V V V 0.35× VCC 0.7 0.8 5.5 VCC 5.5 -4 -8 -12 -24 4 8 12 24 6 +125 V V V V V V mA mA mA mA mA mA mA mA ns/V °C 4 of 7 QW-R126-009.A U74LVC240 CMOS IC ELECTRICAL CHARACTERISTICS (TA =25°C, unless otherwise specified) PARAMETER Output Voltage High-Level SYMBOL VOH Output Voltage Low-Level VOL Input Leakage Current Power off Leakage Carrent Output OFF-State Current II(LEAK) Ioff IOZ Quiescent Supply Current (IO=0) Additional quiescent supply current ICC ∆ICC Input Capacitance CIN Output Capacitance COUT Notes: 1. All typical values are at VCC=3.3V, TA=25°C. 2. This applier in the disabled state only. TEST CONDITIONS IOH = -100uA, VCC=1.65~3.6V IOH = -4mA, VCC=1.65V IOH = -8mA, VCC=2.3V IOH = -12mA, VCC=2.7V IOH = -12mA, VCC=3.0V IOH = -24mA, VCC=3V IOH = 100uA, VCC=1.65~3.6V IOH = 4mA, VCC=1.65V IOH = 8mA, VCC=2.3V IOH = 12mA, VCC=2.7V IOH = 24mA, VCC=3.0V VI = 5.5 V or GND, VCC=3.6V VI or VO = 5.5V, VCC=0V VO = 0 ~ 5.5 V, VCC=3.6V VI = VCC or GND, VCC=3.6V 3.6 V ≤ VI ≤ 5.5 V, VCC=3.6V (Note 2) One input at VCC-0.6V, Other inputs at VCC or GND, VCC=2.7~3.6V VI = VCC or GND, VCC=3.3V VO = VCC or GND, VCC=3.3V MIN TYP (Note 1) UNIT 0.2 0.45 0.7 0.4 0.55 ±5 ±10 ±10 10 V V V V V V V V V V V μA mA μA μA 10 μA 500 μA VCC-0.2 1.2 1.7 2.2 2.4 2.2 4 5.5 pF pF SWITCHING CHARACTERISTICS (TA =25°C, unless otherwise specified) PARAMETER Propagation Delay Time Signal From input A to output Y Propagation Delay Time Signal From input OE to output Y Propagation Delay Time Signal From input OE to output Y SYMBOL tPD ten tdis CONDITIONS VCC=2.7V VCC=3.3 V ± 0.3 V VCC=2.7V MIN VCC=3.3 V ± 0.3 V 1.1 TYP 1.3 VCC=2.7V VCC=3.3 V ± 0.3 V 1.4 High-impedance state Current (Note) tsk VCC=3.3 V ± 0.3 V Note: Skew between any two outputs of the same package switching in the same direction MAX MAX 7.5 6.5 9 UNIT ns ns ns 8 ns 8 ns 7 ns 1 ns MAX UNIT OPERATING CHARACTERISTICS (TA =25°C , unless otherwise specified) PARAMETER Power Dissipation Capacitance SYMBOL CPD TEST CONDITIONS TYP OE =0, f=10MHZ, VCC=3.3V 32 pF OE =1, f=10MHZ, VCC=3.3V 3 pF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 5 of 7 QW-R126-009.A U74LVC240 CMOS IC TEST CIRCUIT AND WAVEFORMS VCC VI tr/tf VM V△ CL RL 2.7 V 3.3V ±0.3V 2.7 V 2.7 V ≤2.5ns ≤2.5ns 6V 6V 0.3V 0.3V 50 PF 50 PF 500Ω 500Ω TPLH/TPHL OPEN OPEN VEXT TPZH/TPHZ GND GND TPZL/TPLZ 6V 6V Fig-1 Load circuitry Fig-2 Propagation delay waves UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 7 QW-R126-009.A U74LVC240 CMOS IC 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-R126-009.A