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IN74ACT244 Dataheets PDF



Part Number IN74ACT244
Manufacturers IK Semiconductor
Logo IK Semiconductor
Description Octal Buffer/Line Driver
Datasheet IN74ACT244 DatasheetIN74ACT244 Datasheet (PDF)

TECHNICAL DATA IN74ACT244 Octal 3-State Noninverting Buffer/Line Driver/Line Receiver High-Speed Silicon-Gate CMOS The IN74ACT244 is identical in pinout to the LS/ALS244, HC/HCT244. The IN74ACT244 may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. This octal noninverting buffer/line driver/line receiver is designed to be used with 3-state memory address drivers, clock drivers, and other bus-oriented systems. The device has noninverting outputs and t.

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TECHNICAL DATA IN74ACT244 Octal 3-State Noninverting Buffer/Line Driver/Line Receiver High-Speed Silicon-Gate CMOS The IN74ACT244 is identical in pinout to the LS/ALS244, HC/HCT244. The IN74ACT244 may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. This octal noninverting buffer/line driver/line receiver is designed to be used with 3-state memory address drivers, clock drivers, and other bus-oriented systems. The device has noninverting 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; 0.1 µA @ 25°C • Outputs Source/Sink 24 mA ORDERING INFORMATION IN74ACT244N Plastic IN74ACT244DW SOIC TA = -40° to 85° C for all packages PIN ASSIGNMENT LOGIC DIAGRAM FUNCTION TABLE Inputs Enable A, Enable B A,B L H X Outputs YA,YB L H Z w w w .d e e h s a t a . u t4 m o c L L H X=don’t care Z = high impedance PIN 20=VCC PIN 10 = GND 1 www.DataSheet4U.com IN74ACT244 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 Sink/Source 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 -0.5 to VCC +0.5 -0.5 to VCC +0.5 ±20 ±50 ±50 750 500 -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 TJ TA IOH IOL tr, tf * Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage, Output Voltage (Referenced to GND) Junction Temperature (PDIP) Operating Temperature, All Package Types Output Current - High Output Current - Low Input Rise and Fall Time (except Schmitt Inputs) * Min 4.5 0 -40 Max 5.5 VCC 140 +85 -24 24 Unit V V °C °C mA mA ns/V VCC =4.5 V VCC =5.5 V 0 0 10 8.0 VIN from 0.8 V to 2.0 V 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 IN74ACT244 DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND) VCC Symbol VIH VIL VOH Parameter Minimum HighLevel Input Voltage Maximum Lo.


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