CD40175BEE4 Equivalent & Substitute Parts

Part Overview

The CD40175BEE4 is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, classified as a 1-element, 4-bit positive edge-triggered device in the 4000B CMOS series. This component is housed in a 16-DIP (0.300", 7.62mm) through-hole package and is currently in active production status with 849 pieces available in new original inventory.

The CD40175BEE4 serves applications requiring synchronous data storage and transfer in digital logic circuits. Substitute parts become necessary when the primary device is unavailable, when design requirements mandate specific compliance certifications, or when inventory constraints necessitate alternative sourcing from qualified manufacturers within the same functional and electrical specification range.

Substiute Parts

CD40175BEE4

Texas InstrumentsIn Stock: 884CD40175BEE4 Datasheet

Current PartRFQ

CD40175BE

Harris CorporationIn Stock: 4087CD40175BE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD40175BEE4 is determined by strict equivalence across the following critical parameters:

Functional Parameters: Type (D-Type flip-flop), number of elements (1), number of bits per element (4), trigger type (positive edge), and output type (complementary) must be identical.

Electrical Parameters: Clock frequency (14 MHz), maximum propagation delay (120 ns @ 15V, 50pF), voltage supply range (3V to 18V), output current capability (6.8 mA high and low), input capacitance (5 pF), and operating temperature range (-55°C to 125°C) must match or exceed the main part specifications.

Physical Parameters: Package type (16-DIP, 0.300", 7.62mm) and mounting type (through hole) must be identical to ensure mechanical and electrical compatibility in existing PCB designs.

Series Designation: The 4000B series classification must be maintained.

The CD40175BE from Harris Corporation meets all functional, electrical, and physical parameter requirements and qualifies as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

CD40175BEE4 (Texas Instruments): Select this part for new designs and applications where ROHS3 compliance is mandatory. The device is in active production status, ensuring long-term availability and supply chain stability. This part is the preferred choice for applications requiring current regulatory compliance certifications.

CD40175BE (Harris Corporation): This substitute part provides identical functional and electrical performance across all critical parameters. The quiescent current specification (4 µA) is superior to the main part (20 µA), resulting in lower power consumption in standby conditions. However, this part is classified as obsolete and does not meet ROHS3 compliance requirements. Selection of this substitute is appropriate only when the primary part is unavailable and RoHS compliance is not a design constraint. The Harris Corporation device is suitable for legacy system maintenance, repair, and retrofit applications where existing designs already incorporate this manufacturer's components.

Both parts are mechanically and electrically interchangeable within the 16-DIP through-hole package format and maintain full compatibility with the 4000B CMOS logic family specifications.

Frequently Asked Questions (FAQ)

Q: Can the CD40175BE be used as a direct replacement for the CD40175BEE4 in new designs?

A: The CD40175BE is electrically and functionally equivalent and will operate identically in circuit applications. However, the CD40175BE is obsolete and does not meet ROHS3 compliance. For new designs subject to regulatory requirements, the CD40175BEE4 from Texas Instruments is the appropriate selection. The CD40175BE is suitable only for legacy system maintenance where compliance certifications are not applicable.

Q: What are the key differences between these two parts?

A: The primary differences are manufacturer (Texas Instruments vs. Harris Corporation), product status (active vs. obsolete), RoHS compliance (ROHS3 compliant vs. non-compliant), and quiescent current specification (20 µA vs. 4 µA). All functional, electrical, and physical parameters are identical. The lower quiescent current of the Harris part provides a minor power consumption advantage in standby operation.

Q: Are both parts pin-compatible?

A: Yes. Both the CD40175BEE4 and CD40175BE use the identical 16-DIP (0.300", 7.62mm) through-hole package with the same pin configuration. They are mechanically and electrically interchangeable in PCB designs without requiring layout modifications.

Q: What is the significance of the "4000B" series designation?

A: The 4000B designation indicates both parts belong to the CMOS 4000B logic family, a standardized series of digital logic integrated circuits. This series classification ensures compatibility with related 4000B family components and confirms adherence to established electrical and functional specifications within this product category.

Q: Can I substitute the CD40175BE in applications requiring RoHS compliance?

A: No. The CD40175BE is not RoHS compliant. Applications subject to RoHS regulations, including consumer electronics, automotive, and industrial equipment sold in regulated markets, must use the CD40175BEE4 from Texas Instruments, which carries ROHS3 compliance certification.

Q: What does "positive edge-triggered" mean for this flip-flop?

A: Positive edge-triggered indicates that data input is captured and transferred to the output on the rising edge (low-to-high transition) of the clock signal. Both the CD40175BEE4 and CD40175BE operate identically in this regard.

Q: Is the lower quiescent current of the CD40175BE significant for my application?

A: The quiescent current difference (4 µA vs. 20 µA) is relevant only in applications where the device remains powered but inactive for extended periods. In typical digital logic applications with continuous clock operation, this difference has negligible impact on overall system power consumption. For battery-powered or ultra-low-power applications, the lower quiescent current of the CD40175BE may provide measurable benefits if compliance constraints permit its use.