Dual JK flip-flop for wide-voltage logic chains
The CD4027BM is a dual JK flip-flop from the 4000B series, with set and reset inputs and complementary outputs. Each of the two elements stores one bit, clocked on the positive edge. Supply range is 3 V to 18 V. Clock frequency is 24 MHz, and propagation delay is 90 ns at 15 V with a 50 pF load.
Temperature grade and environment
Rated for the full military temperature range of -55°C to 125°C, this part suits avionics, satellite, downhole instrumentation, and other environments where the board sees extreme thermal cycling. The 4000B series is known for robust noise immunity at higher supply voltages, which helps in industrial and automotive (non-AEC) applications where supply rails are noisy.
Quiescent current and output drive
Quiescent current is only 4 µA, making the CD4027BM a strong candidate for battery-backed or always-on logic blocks where standby power matters. Outputs source and sink 6.8 mA each, enough to drive a standard CMOS input or a low-power LED indicator directly. Input capacitance is 5 pF, so fan-out calculations stay straightforward.
Package and mounting
Supplied in a 16-SOIC package (3.90 mm body width) for surface-mount assembly. The supplier device package is 16-SOIC. This is a standard footprint shared with many 4000B and 74HC series parts, easing board layout reuse.
Lifecycle and compliance
It is ROHS3 compliant, meeting the latest EU restriction directive.