CD74HCT259EE4 Equivalent & Substitute Parts

Part Overview

The CD74HCT259EE4 is an 8-bit addressable latch IC manufactured by Texas Instruments, designed for D-Type addressable logic applications with a 1:8 circuit configuration. This component operates within a 4.5V to 5.5V supply voltage range and is housed in a 16-DIP package suitable for through-hole mounting.

The CD74HCT259EE4 has been discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production, repair, and ongoing system support.

Substiute Parts

CD74HCT259EE4

Texas InstrumentsIn Stock: 1052CD74HCT259EE4 Datasheet

Current PartRFQ

CD74HCT259E

Texas InstrumentsIn Stock: 4609CD74HCT259E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HCT259EE4 is determined by strict equivalence across the following critical parameters:

• Logic Type and Circuit Configuration (D-Type, Addressable 1:8)
• Output Type (Standard)
• Supply Voltage Range (4.5V ~ 5.5V)
• Propagation Delay (16ns)
• Output Current Specifications (4mA, 4mA)
• Operating Temperature Range (-55°C ~ 125°C)
• Package Type (16-DIP through-hole)
• Base Product Number (74HCT259)

The CD74HCT259E qualifies as a direct substitute based on identical electrical characteristics and mechanical compatibility. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The CD74HCT259E is the direct substitute for the CD74HCT259EE4. Both parts share identical electrical specifications, mechanical dimensions, and thermal operating ranges. The CD74HCT259E maintains active product status with established supply availability, whereas the CD74HCT259EE4 is discontinued.

Both parts comply with ROHS3 and REACH requirements, ensuring regulatory alignment for new designs and legacy system support. The packaging difference (bulk versus tube) does not affect functional compatibility or circuit performance.

Frequently Asked Questions (FAQ)

Q: Can the CD74HCT259E be used as a direct replacement for the CD74HCT259EE4?

A: Yes. Both parts are electrically and mechanically identical. They share the same logic type, circuit configuration, supply voltage, propagation delay, output current, operating temperature range, and 16-DIP package dimensions.

Q: What is the difference between CD74HCT259EE4 and CD74HCT259E?

A: The primary differences are product status and packaging format. The CD74HCT259EE4 is discontinued at DiGi Electronics and supplied in bulk packaging. The CD74HCT259E is an active product supplied in tube packaging with higher inventory availability.

Q: Are there any pin configuration differences between these parts?

A: No. Both parts use the 16-DIP package with identical pin assignments and through-hole mounting specifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the CD74HCT259EE4 and CD74HCT259E are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: Can I use the CD74HCT259E in applications originally designed for the CD74HCT259EE4?

A: Yes. Identical electrical characteristics, thermal performance, and mechanical compatibility ensure direct substitution without circuit modification.