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M74HC139 数据表(PDF) 2 Page - STMicroelectronics |
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M74HC139 数据表(HTML) 2 Page - STMicroelectronics |
2 / 9 page PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1, 15 1G, 2G Enable Inputs 2, 3 1A, 1B Address Inputs 4, 5, 6, 7 1Y0 to 1Y3 Outputs 12, 11, 10, 9 2Y0 to 2Y3 Outputs 14, 13 2A, 2B Address Inputs 8 GND Ground (0V) 16 VCC Positive Supply Voltage IEC LOGIC SYMBOL SCHEMATIC CIRCUIT TRUTH TABLE INPUTS OUTPUTS SELECTED OUTPUT ENABLE SELECT Y0 Y1 Y2 Y3 GB A H X X H H H H NONE L LLL H H H Y0 LL H H L H H Y1 LH L H H L H Y2 L HHHHH L Y3 ABSOLUTE MAXIMUM RATINGS 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 Source Sink Current Per Output Pin ± 25 mA ICC or IGND DC VCC or Ground Current ± 50 mA PD Power Dissipation 500 (*) mW Tstg Storage Temperature -65 to +150 oC TL Lead Temperature (10 sec) 300 oC Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. (*) 500 mW: ≅ 65 oC derate to 300 mW by 10mW/oC: 65 oCto 85 oC M54/M74HC139 2/9 |
类似零件编号 - M74HC139 |
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