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M74HC123B1R 数据表(PDF) 5 Page - STMicroelectronics |
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M74HC123B1R 数据表(HTML) 5 Page - STMicroelectronics |
5 / 14 page PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1, 9 1A, 2A Trigger Inputs (Negative Edge Triggered) 2, 10 1B, 2B Trigger Inputs (Positive Edge Triggered) 3, 11 1CLR, 2CLR Direct Reset LOW and Trigger Action at Positive Edge 4, 12 1Q, 2Q Outputs (Active LOW) 72REXT/CEXT External Resistor Capacitor Connection 13, 5 1Q, 2Q Outputs (Active HIGH) 14, 6 1CEXT 2CEXT External Capacitor Connection 15 1REXT/CEXT External Resistor Capacitor Connection 8 GND Ground (0V) 16 VCC Positive Supply Voltage IEC LOGIC SYMBOL ABSOLUTE MAXIMUM RATING 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/M74HC123/123A 5/14 |
类似零件编号 - M74HC123B1R |
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类似说明 - M74HC123B1R |
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