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Texas Instruments CD4027BM — Logic ICs

CD4027BM JK Flip-Flop, 24 MHz, 3V-18V, -55°C to 125°C

MPNCD4027BM
End of Life

Texas Instruments CD4027BM, 4000B series, dual JK flip-flop, 24 MHz, 3V to 18V supply, complementary outputs, positive edge triggered, 16-SOIC, -55°C to 125°C.

$1.09Ref. price · indicative, final on quote
Texas Instruments CD4027BM datasheet (PDF)
Packaging16-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Series4000B
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CD4027BM specifications
ParameterValue
TypeJK Type
Series4000B
Output typeComplementary
Trigger typePositive Edge
MountingSurface Mount
Supply voltage3V ~ 18V
Current - quiescent4 µA
Current - output high, low6.8mA, 6.8mA
Clock frequency24 MHz
Operating temperature-55°C ~ 125°C (TA)
PackageTube
FunctionSet(Preset) and Reset
Case16-SOIC (0.154\", 3.90mm Width)
Input capacitance5 pF
Number of elements2
Number of bits per element1
Max propagation delay @ v, max CL90ns @ 15V, 50pF

Product details

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.

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.

The supplier device package is 16-SOIC. This is a standard footprint shared with many 4000B and 74HC series parts, easing board layout reuse.

Frequently asked questions

What is the CD4027BM equivalent?

A direct functional equivalent is the CD4027BE, which is the same dual JK flip-flop in a through-hole DIP package. For surface-mount, the CD4027BM is the SOIC variant. No pin-compatible second source from another manufacturer is listed in the official cross-reference.

Is CD4027BM RoHS compliant?

Yes, it is ROHS3 compliant, meeting the latest EU restriction of hazardous substances directive.

What is the difference between CD4027BM and CD4027BE?

The CD4027BM is the surface-mount 16-SOIC variant; the CD4027BE is the through-hole DIP variant. Both are the same dual JK flip-flop with identical electrical specifications.