HEF4013B - Dual D-type flip-flop , 14-PDIP, NXP Semiconductor

The HEF4013B is a dual D-type flip-flop that features independent set-direct input (SD), clear-direct input (CD), clock input (CP) and outputs (Q, Q). Data is accepted when CP is  LOW and is transferred to the output on the positive-going edge of the clock. The active HIGH asynchronous CD and SD inputs are independent and override the D or CP inputs.  The outputs are buffered for best system performance. The clock input’s Schmitt-trigger action makes the circuit highly tolerant of slower clock rise and fall times.

It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS(usually ground). Unused inputs must be connected to VDD, VSS, or another input.

Technical Datasheet (116 KB)  

Applications

• Counters and dividers
• Registers
• Toggle flip-flops

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