CD4043BCN

The CD4043BCN from ON Semiconductor is a versatile integrated circuit featuring quad cross-coupled 3-state CMOS NOR latches. Each latch includes individual SET and RESET inputs, along with a common 3-state ENABLE input that controls all four latches simultaneously. When the ENABLE input is high, the latch states are connected to the Q outputs. When low, the outputs are in a high-impedance, open-circuit state, enabling common bussing of outputs.

This device operates across a wide supply voltage range of 3V to 15V and maintains high noise immunity. It is designed for applications such as multiple bus storage, strobed registers, and general digital logic requiring four bits of independent storage with output enable functionality. The CD4043BCN is packaged in a 16-pin DIP (PDIP) with a 0.300" wide body, suitable for through-hole mounting.

Key electrical characteristics include a typical low power consumption of 100 nW and a typical noise immunity of 0.45 VDD. The operating temperature range is from -55°C to 125°C, making it suitable for various environmental conditions. The 3-state output feature is particularly useful for bus-oriented systems where multiple devices share a common data line.