Dual JK flip-flop for wide-supply, wide-temp logic
The CD4027BPW is a dual JK flip-flop from the 4000B series, each element providing a single bit with complementary outputs. Positive-edge triggered with set and reset functions, it operates across a 3V to 18V supply range — a flexibility that lets it bridge legacy 5V logic and newer 3.3V rails without a level translator on the power pin. The -55°C to 125°C operating range covers military and industrial temperature grades, so this part suits avionics, downhole instrumentation, and outdoor telecom backplanes where the ambient swings beyond the commercial 0-70°C envelope.
Clock speed, propagation delay, and output drive
Rated at 24 MHz maximum clock frequency, the CD4027BPW handles moderate-speed counters, shift registers, and state machines. Output drive capability is 6.8 mA source and sink at rated conditions, enough to drive a standard CMOS load or a single TTL gate input. The 4 µA typical quiescent current keeps the static power draw negligible in battery-powered or always-on logic blocks. Input capacitance is 5 pF per pin, a figure that matters when calculating the drive strength needed from the upstream stage at 24 MHz — the dynamic power scales as C × V² × f, so a 5 pF load at 18V and 24 MHz draws about 39 µW per input.
The supplier device package matches the 16-TSSOP, so the land pattern is the same across TI's 4000B and 74HC series in this package — a single PCB footprint can serve multiple BOM variants. Supplied in tube packaging, the CD4027BPW is suited for hand-assembly or low-volume pick-and-place. For reel quantities, check the alternate order codes in the 4000B family.
Lifecycle and compliance
No single-source risk — the 4000B family has multiple qualified foundries.