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Quad NOR R-S Latch Tri-state IC - CD4043

Quad NOR R-S Latch Tri-state IC - CD4043

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  • Four Independent Cross-Couple 3-state CMOS NOR Latches
  • Separate Set and Reset Inputs for each Latch
  • 3-state Output
  • Operating Temperature to 85°C
  • Low Power CMOS

Quad NOR R-S Latch Tri-state IC - CD4043

The CD4x Series CD4043 IC is quad cross-coupled 3-STATE CMOS NOR latches These latch has a separate Q output and individual SET and RESET inputs. There is a common 3-STATE ENABLE input for all four latches.

A logic “1” on the ENABLE input connects the latch states to the Q outputs. A logic “0” on the ENABLE input disconnects the latch states from the Q outputs resulting in an open circuit condition on the Q output. The 3-STATE feature allows common bussing of the outputs.


Pinout of CD4043 IC


  • Multiple bus storage
  • Strobed register
  • Four bits of independent storage with output enable
  • General digital logic

Package Includes:

  • 1 x  IC - CD4043


Part number CD4040B
Supply Voltage (VDD) −0.5V to +18V
 Input Voltage (VIN)  −0.5V to VDD +0.5V
 Storage Temperature Range (TS)  −65°C to +150°C
Power Dissipation (PD) Dual-In-Line  700 mW
Lead Temperature (TL) 260°C

Shipping & Returns

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  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

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