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IC Flip-Flop 2Bit D-Type CD4013

IC Flip-Flop 2Bit D-Type CD4013

The CD4013 is a dual D-type flip-flop, built using CMOS technology with complementary N and P channel enhancement mode transistors. Each flip-flop includes its own data, set, reset, and clock inputs, along with "Q" and "Q̅" outputs. Being a CMOS IC, the CD4013 consumes less power compared to TTL counterparts and operates across a wide voltage range of 3V to 18V. Input pins can tolerate up to +0.5V beyond the supply voltage.
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The device can be used in shift registers, counters, and toggle applications by connecting the "Q" output back to the data input. On the rising edge of the clock pulse, the logic level at the "D" input is transferred to the Q output. Set and reset operations work independently of the clock by applying a HIGH level to the respective set or reset inputs.

What is a D Flip-Flop?

A D flip-flop is a bistable circuit that stores one bit of information (HIGH or LOW). When the clock signal transitions from LOW to HIGH (rising edge), the output takes the value present on the D (data) input.

Specifications

  • Wide supply voltage range: 3.0V to 15V
  • High noise immunity: 0.45 VDD
  • Low power TTL compatibility: fan-out of 2 (driving 74L) or 1 (driving 74LS)
  • Package Type: DIP

Pinout of the CD4013

Pin Name Pin Number Type Description
VDD 14 Power Supply Voltage (+3V to +15V)
GND 7 Power Ground (0V)
Q1, Q2 1, 13 Output Outputs of the two D Flip-Flops
Q̅1, Q̅2 2, 12 Output Inverted outputs of the two D Flip-Flops
CLK1, CLK2 3, 11 Input Clock input (rising edge) for the two flip-flops
D1, D2 5, 9 Input Data input for the two flip-flops
S1, S2 6, 8 Input Set (preset output to 1)
C1, C2 4, 10 Input Reset (clear output to 0)

Applications

  • Automotive electronics
  • Alarm systems
  • Data terminals
  • Industrial electronics
  • Instrumentation
  • Remote metering
  • Medical electronics
  • Computers