CD4027BM Equivalent & Substitute Parts

Part Overview

The CD4027BM is a dual JK-type flip-flop logic integrated circuit manufactured by Texas Instruments in the 4000B CMOS series. This device provides two independent 1-bit JK flip-flops with complementary outputs, positive edge triggering, and Set/Reset functionality. The CD4027BM is currently in Last Time Buy status, making equivalent substitute parts necessary for ongoing design support and procurement planning. Substitute parts must maintain functional equivalence across core electrical parameters while accommodating packaging and operational temperature variations.

Substiute Parts

CD4027BM

Texas InstrumentsIn Stock: 1936CD4027BM Datasheet

Current PartRFQ

CD4027BM96

Texas InstrumentsIn Stock: 34192CD4027BM96 Datasheet

MFR RecommendedRFQ

MC14027BDR2G

onsemiIn Stock: 3395MC14027BDR2G Datasheet

DirectRFQ

HEC4027BT,112

NXP USA Inc.In Stock: 978HEC4027BT,112 Datasheet

MFR RecommendedRFQ

HEC4027BT,118

NXP USA Inc.In Stock: 706HEC4027BT,118 Datasheet

MFR RecommendedRFQ

HEF4027BT,653

Nexperia USA Inc.In Stock: 7682HEF4027BT,653 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD4027BM is determined by strict adherence to the following core parameters:

Critical Matching Parameters:

• Dual JK-type flip-flop architecture with 1-bit per element configuration
• Complementary output structure
• Positive edge trigger mechanism
• 16-SOIC package footprint compatibility
• Voltage supply range minimum of 3V (CD4027BM supports 3V–18V)
• Surface mount mounting type

Acceptable Variation Parameters:

• Clock frequency: Substitute parts may operate at different maximum frequencies provided they meet or exceed application requirements
• Propagation delay: Variations permitted within system timing constraints
• Operating temperature range: Substitutes with narrower ranges (-40°C to 85°C) are acceptable for applications not requiring full -55°C to 125°C coverage
• Output current specifications: Minor variations acceptable if load requirements are met
• Quiescent current: Variations acceptable for non-power-critical applications

Substitute parts are grouped by manufacturer and packaging configuration while maintaining functional and electrical equivalence across the JK flip-flop logic family.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CD4027BM96 (Texas Instruments)

CD4027BM96 is the direct Texas Instruments equivalent with identical electrical specifications and extended product availability. This part maintains full parameter compatibility including the 3V–18V supply range, 24 MHz clock frequency, and -55°C to 125°C operating temperature. The only difference is packaging configuration (Cut Tape & Digi-Reel versus Tube), which does not affect functional performance. This substitute is recommended for applications requiring maximum parameter continuity and Texas Instruments sourcing preference.

Secondary Substitute: HEF4027BT,653 (Nexperia USA Inc.)

HEF4027BT,653 provides active product status with improved propagation delay performance (60 ns versus 90 ns) and lower output current specifications (3 mA versus 6.8 mA). The supply voltage range is restricted to 3V–15V and operating temperature to -40°C–85°C. This substitute is suitable for applications not requiring the extended temperature range or 18V supply capability of the original part. Nexperia maintains active manufacturing status with established supply chain availability.

Tertiary Substitute: MC14027BDR2G (onsemi)

MC14027BDR2G maintains full voltage supply range compatibility (3V–18V) and extended temperature range (-55°C–125°C) matching the CD4027BM. Clock frequency is reduced to 13 MHz with propagation delay of 100 ns. This substitute is appropriate for lower-frequency applications where timing margins are not critical. onsemi provides active product status with Tape & Reel packaging.

Alternative Substitutes: HEC4027BT,112 and HEC4027BT,118 (NXP USA Inc.)

Both NXP variants offer improved clock frequency (30 MHz) and propagation delay (60 ns) with reduced operating temperature range (-40°C–85°C) and supply voltage maximum of 15V. These parts are suitable for applications operating within standard industrial temperature and voltage specifications. The two variants differ only in packaging configuration and represent equivalent functional alternatives.

Selection Criteria:

• For full parameter compatibility and extended environmental range: CD4027BM96 or MC14027BDR2G
• For improved timing performance with standard industrial specifications: HEF4027BT,653, HEC4027BT,112, or HEC4027BT,118
• For applications requiring 18V supply capability: CD4027BM96 or MC14027BDR2G only
• For applications with temperature extremes below -40°C or above 85°C: CD4027BM96 or MC14027BDR2G only

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and identical 16-SOIC package footprint.

Frequently Asked Questions (FAQ)

Q: Can HEF4027BT,653 replace CD4027BM in all applications?

A: HEF4027BT,653 is functionally equivalent for most applications but has two restrictions: maximum supply voltage is 15V (versus 18V for CD4027BM) and operating temperature range is -40°C to 85°C (versus -55°C to 125°C). Verify your application does not require 18V operation or extended temperature extremes before substitution.

Q: What is the difference between CD4027BM and CD4027BM96?

A: Both parts are manufactured by Texas Instruments with identical electrical specifications. The difference is packaging configuration: CD4027BM is supplied in Tube packaging while CD4027BM96 is supplied in Cut Tape & Digi-Reel format. Functional performance is identical.

Q: Is MC14027BDR2G suitable for high-frequency applications?

A: MC14027BDR2G has a maximum clock frequency of 13 MHz compared to 24 MHz for CD4027BM. Use this substitute only for applications operating at 13 MHz or below. For higher frequencies, select CD4027BM96, HEF4027BT,653, or NXP variants.

Q: Do all substitute parts fit the same PCB footprint?

A: Yes. All listed substitute parts use the 16-SOIC (0.154", 3.90mm Width) package, ensuring identical PCB footprint compatibility. No layout modifications are required for substitution.

Q: Which substitute has the lowest power consumption?

A: HEF4027BT,653 has the lowest quiescent current specification at 16 µA and lowest output current at 3 mA per output. However, CD4027BM and CD4027BM96 specify 4 µA quiescent current. For power-critical applications, compare against your specific load requirements.

Q: Are all substitutes RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL Level 1 moisture sensitivity rating, meeting current environmental and reliability standards.

Q: Can I use HEC4027BT,112 or HEC4027BT,118 in military or aerospace applications?

A: Both NXP variants have restricted operating temperature range (-40°C to 85°C) compared to CD4027BM (-55°C to 125°C). Verify temperature requirements against application specifications before selection. For extended temperature applications, use CD4027BM96 or MC14027BDR2G.