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74AC245MTR Arkusz danych(PDF) 2 Page - STMicroelectronics |
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74AC245MTR Arkusz danych(HTML) 2 Page - STMicroelectronics |
2 / 9 page 74AC245 2/9 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION TRUTH TABLE X : Don’t Care Z : High Impedance ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. RECOMMENDED OPERATING CONDITIONS 1) VIN from 30% to 70% of VCC PIN No SYMBOL NAME AND FUNCTION 1 DIR Directional Control 2, 3, 4, 5, 6, 7, 8, 9 A1 to A8 Data Inputs/Outputs 18, 17, 16, 15, 14, 13, 12, 11 B1 to B8 Data Inputs/Outputs 19 G Output Enable Input 10 GND Ground (0V) 20 VCC Positive Supply Voltage INPUTS FUNCTION OUTPUT G DIR A BUS B BUS Yn L L OUTPUT INPUT A = B L H INPUT OUTPUT B = A HX Z Z Z Symbol Parameter Value Unit VCC Supply Voltage -0.5 to +7 V VI DC Input Voltage -0.5 to VCC + 0.5 V VO DC Output Voltage -0.5 to VCC + 0.5 V IIK DC Input Diode Current ± 20 mA IOK DC Output Diode Current ± 20 mA IO DC Output Current ± 50 mA ICC or IGND DC VCC or Ground Current ± 400 mA Tstg Storage Temperature -65 to +150 °C TL Lead Temperature (10 sec) 300 °C Symbol Parameter Value Unit VCC Supply Voltage 2 to 6 V VI Input Voltage 0 to VCC V VO Output Voltage 0 to VCC V Top Operating Temperature -55 to 125 °C dt/dv Input Rise and Fall Time VCC = 3.0, 4.5 or 5.5V (note 1) 8 ns/V |
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