The 4027 is a dual JK flip-flop integrated circuit (IC) that provides two independent flip-flops in a single package. It is part of the 4000 series CMOS logic family, known for its low power consumption and wide operating voltage range. The 4027 features SET-RESET capability and static flip-flop operation, allowing it to retain its state indefinitely regardless of the clock level (high or low). This makes it suitable for applications requiring stable state retention and medium-speed operation.
The 4027 is widely used in digital systems where state retention and sequential logic are required. Common applications include:
The following table summarizes the key electrical characteristics of the 4027 IC under typical operating conditions (VDD = 5V, TA = 25°C unless otherwise specified).
The 4027 is available in multiple package options to suit different assembly and space requirements. Below are the common package details:
The pinout for the 4027 is as follows (top view):