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M54HC696C1R 数据表(PDF) 2 Page - STMicroelectronics |
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M54HC696C1R 数据表(HTML) 2 Page - STMicroelectronics |
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2 / 22 page ![]() PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1 U/D Up Down Counter Selector 2 CCK Counter Clock 3, 4, 5, 6 A to D Data Inputs 7, 14 EMP/ENT Enable P and T 8 CCLR Counter Clear (Active LOW) 9 RCK Register Clock 11 R/C Register Counter Selector 12 G Enable Input 13 LOAD Load Counter (Active LOW) 15, 16, 17, 18 QA to QD Data Outputs 19 RCO Load Counter (Active HIGH) 10 GND Ground (0V) 20 VCC Positive Supply Voltage INPUT AND OUTPUT EQUIVALENT CIRCUIT IEC LOGIC SYMBOL HC697 HC698 HC699 HC696 M54/M74HC696/697/698/699 2/22 |
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