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IN74HCT240A Dataheets PDF



Part Number IN74HCT240A
Manufacturers IK Semiconductor
Logo IK Semiconductor
Description Octal Buffer/Line Driver
Datasheet IN74HCT240A DatasheetIN74HCT240A Datasheet (PDF)

TECHNICAL DATA IN74HCT240A Octal 3-State Inverting Buffer/Line Driver/Line Receiver High-Performance Silicon-Gate CMOS The IN74HCT240A is identical in pinout to the LS/ALS240. The IN74HCT240A may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. This octal inverting buffer/line driver/line receiver is designed to be used with 3-state memory address drivers, clock drivers, and other busoriented systems. The device has inverting outputs and two active-lo.

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TECHNICAL DATA IN74HCT240A Octal 3-State Inverting Buffer/Line Driver/Line Receiver High-Performance Silicon-Gate CMOS The IN74HCT240A is identical in pinout to the LS/ALS240. The IN74HCT240A may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. This octal inverting buffer/line driver/line receiver is designed to be used with 3-state memory address drivers, clock drivers, and other busoriented systems. The device has inverting outputs and two active-low output enables. • TTL/NMOS Compatible Input Levels • Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 4.5 to 5.5 V • Low Input Current: 1.0 µA ORDERING INFORMATION IN74HCT240AN P lastic IN74HCT240ADW SOIC TA = -55° to 125° C for all packages PIN ASSIGNMENT LOGIC DIAGRAM FUNCTION TABLE Inputs Outputs A,B L H X YA,YB H L Z w w w .d h s a t a ee . u t4 m o c PIN 20=VCC PIN 10 = GND Enable A, Enable B L L H X = don’t care Z = high impedance 1 www.DataSheet4U.com IN74HCT240A MAXIMUM RATINGS* Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL * Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) Value -0.5 to +7.0 -1.5 to VCC +1.5 -0.5 to VCC +0.5 ±20 ±35 ±75 750 500 -65 to +150 260 Unit V V V mA mA mA mW °C °C Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. +Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C SOIC Package: : - 7 mW/°C from 65° to 125°C RECOMMENDED OPERATING CONDITIONS Symbol VCC VIN, VOUT TA tr, tf Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage, Output Voltage (Referenced to GND) Operating Temperature, All Package Types Input Rise and Fall Time (Figure 1) Min 4.5 0 -55 0 Max 5.5 VCC +125 500 Unit V V °C ns This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND≤(VIN or VOUT)≤VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open. 2 IN74HCT240A DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND) VCC Symbol Parameter Test Conditions V Guaranteed Limit 25 °C to -55°C 2.0 2.0 0.8 0.8 4.4 5.4 3.98 0.1 0.1 0.26 ±0.1 ±0.5 ≤85 °C 2.0 2.0 0.8 0.8 4.4 5.4 3.84 0.1 0.1 0.33 ±1.0 ±5.0 ≤125 °C 2.0 2.0 0.8 0.8 4.4 5.4 3.7 0.1 0.1 0.4 ±1.0 ±10.0 µA µA V Unit VIH VIL VOH Minimum HighLevel Input Voltage Maximum Low Level Input Voltage Minimum HighLevel Output Voltage VOUT=0.1 V ⎢IOUT⎢≤ 20 µA VOUT= VCC-0.1 V ⎢IOUT⎢ ≤ 20 µA VIN= VIL ⎢IOUT⎢ ≤ 20 µA VIN=VIL ⎢IOUT⎢ ≤ 6.0 mA 4.5 5.5 4.5 5.5 4.5 5.5 4.5 4.5 5.5 4.5 5.5 5.5 V V V VOL Maximum LowLevel Output Voltage VIN=VIH ⎢IOUT⎢ ≤ 20 µA VIN= VIH ⎢IOUT⎢ ≤ 6.0 mA IIN IOZ Maximum Input Leakage Current Maximum three State Leakage Current VIN=VCC or GND Output in High-Impedance State VIN = VIL or VIH VOUT=VCC or GND VIN=VCC or GND IOUT=0µA VIN = 2.4 V, Any One Input VIN=VCC or GND, Other Inputs IOUT=0µA ICC Maximum Quiescent Supply Current (per Package) Additional Quiescent Supply Current 5.5 4.0 40 160 µA ∆ICC ≥-55°C 25°C to 125°C 2.4 mA 5.5 2.9 NOTE: Total Supply Current = ICC + ∑∆ICC 3 IN74HCT240A AC ELECTRICAL CHARACTERISTICS (VCC=5.0 V ± 10%, CL=50pF,Input tr=tf=6.0 ns) Guaranteed Limit Symbol Parameter 25 °C to -55°C 20 28 25 12 10 15 ≤85°C ≤125°C Unit tPLH, tPHL tPLZ, tPHZ tPZH, tPZL tTLH, tTHL CIN COUT Maximum Propagation Delay, A to YA or B to YB (Figures 1 and 3) Maximum Propagation Delay, Output Enable to YA or YB (Figures 2 and 4) Maximum Propagation Delay, Output Enable to YA or YB (Figures 2 and 4) Maximum Output Transition Time, Any Output (Figures 1 and 3) Maximum Input Capacitance Maximum Three-State Output Capacitance (Output in High-Impedance State) Power Dissipation Capacitance (Per Enable Output) 25 35 31 15 10 15 30 42 38 18 10 15 ns ns ns ns pF pF Typical @25°C,VCC=5.0 V 55 pF CPD Used to determine the no-load dynamic power consumption: PD=CPDVCC2f+ICCVCC Figure 1. Switching Waveforms Figure 2. Switching Waveforms 4 IN74HCT240A Figure 3. Test Circuit Figure 4. Test Circuit EXPANDED LOGIC DIAGRAM (1/8 of the Device) 5 IN74HCT240A N SUFFIX PLASTIC DIP (MS - 001AD) A Dimension, mm 20 11 B 1 10 Symbol A B C MIN 24.89 6.1 MAX 26.92 7.11 5.33 F L D F 0.36 1.14 2.54 7.62 0° 2.92 7.62 0.2 0.38 0.56 1.78 C -T- SEATING PLANE G H H J N G D 0.25 (0.010) M T K M J K L M N .


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