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IZ74LV244 Scheda tecnica(PDF) 1 Page - Integral Corp. |
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IZ74LV244 Scheda tecnica(HTML) 1 Page - Integral Corp. |
1 / 4 page IN74LV244 1 OCTAL BUFFER/LINE DRIVER 3-STATE The IN74LV244 is a low-voltage Si-gate CMOS device and is pin and function compatible with IN74HC/HCT244. The IN74LV244 is an octal non-inverting buffer/line driver with 3-state outputs. The 3-state outputs are controlled by the output enable inputs OE 1 and OE 2 . A HIGH on nOE causes the outputs to assume a high impedance OFF-state. The IN74LV244 is identical to the IN74LV240 but has non- inverting outputs. • Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 1.2 to 3.6 V • Low Input Current: 1.0 µA, 0.1 µА at Т = 25 °С • Output Current: 8 mA at VCC = 3.0 V • High Noise Immunity Characteristic of CMOS Devices N SUFFIX PLASTIC DIP DW SUFFIX SO 1 20 1 20 ORDERING INFORMATION IN74LV244N Plastic DIP IN74LV244DW SOIC IZ74LV244 chip TA = -40° to 125° C for all packages FUNCTION TABLE Input OUTPUT nOE nAn nYn L L L L H H H X Z H= high level L = low level X = don’t care Z = high impedance LOGIC DIAGRAM 2 11 6 15 4 13 8 17 1 19 1A0 1Y0 2A0 2Y0 1A2 1Y2 2A0 2Y0 1A1 1Y1 2A1 2Y1 1A3 1Y3 2A1 2Y1 1OE 2OE 18 9 14 5 16 7 12 3 DATA INPUTS NONINVERTING OUTPUTS OUTPUT ENABLES PIN 20=VCC PIN 10 = GND PIN ASSIGNMENT 1 2 3 5 4 6 7 8 9 10 VCC 20 18 17 16 15 14 19 11 12 13 GND 2OE 1OE 1A0 2Y3 1A1 2Y2 1A2 2Y1 1A3 2Y0 1Y0 2A3 1Y1 2A2 1Y2 2A1 1Y3 2A0 |
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