CD74HC32EE4 Equivalent & Substitute Parts

Part Overview

The CD74HC32EE4 is a 4-channel OR gate logic integrated circuit manufactured by Texas Instruments in the 74HC series. This component is classified as an active product with full RoHS3 compliance and REACH unaffected status. The device integrates four independent 2-input OR gates in a 14-pin DIP package suitable for through-hole mounting applications.

Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain component availability across manufacturing cycles. Substitute parts must maintain identical electrical performance, logic functionality, and physical packaging to ensure direct interchangeability without circuit redesign.

Substiute Parts

CD74HC32EE4

Texas InstrumentsIn Stock: 980CD74HC32EE4 Datasheet

Current PartRFQ

CD74HC32E

Texas InstrumentsIn Stock: 1224CD74HC32E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HC32EE4 is determined by strict equivalence across the following critical parameters:

Logic Function: The substitute part must implement four independent 2-input OR gates with identical truth table behavior.

Electrical Specifications: Supply voltage range (2V to 6V), quiescent current (2 µA maximum), output current capability (5.2mA for both high and low states), input logic thresholds, and propagation delay (15ns @ 6V, 50pF) must be identical.

Physical Package: The substitute must use the 14-DIP package format with 0.300" (7.62mm) pitch, compatible with through-hole PCB mounting.

Series Compatibility: The substitute must belong to the 74HC logic family to ensure consistent electrical characteristics and manufacturing standards.

Compliance Requirements: The substitute must maintain RoHS3 compliance and REACH unaffected status to satisfy regulatory and environmental requirements.

Parameter Comparison

Engineering Selection Recommendations

The CD74HC32E is a direct parametric equivalent to the CD74HC32EE4. Both components are manufactured by Texas Instruments, belong to the active product status category, and maintain identical electrical and physical specifications across all critical parameters.

Both parts satisfy RoHS3 compliance requirements and REACH unaffected status, making them suitable for applications requiring regulatory compliance. The identical package format (14-DIP), mounting type (through-hole), and electrical performance ensure that the CD74HC32E can be used as a direct replacement without circuit modification or re-qualification.

Selection between these parts should be based on inventory availability and supply chain considerations, as they are functionally and electrically interchangeable.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC32E be used as a direct replacement for the CD74HC32EE4 in existing designs?

A: Yes. The CD74HC32E is a direct parametric equivalent with identical logic function, electrical specifications, operating temperature range, and 14-DIP package format. No circuit redesign or PCB modification is required.

Q: What is the difference between CD74HC32EE4 and CD74HC32E?

A: The primary difference is the packaging designation. CD74HC32EE4 specifies tube packaging, while CD74HC32E also uses tube packaging. All electrical parameters, logic function, and physical package dimensions are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both the CD74HC32EE4 and CD74HC32E are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What are the critical parameters for substitution?

A: Substitution is valid when the following parameters match: logic type (OR gate), number of circuits (4), number of inputs (2), supply voltage range (2V to 6V), output current capability (5.2mA), propagation delay (15ns @ 6V, 50pF), operating temperature range (-55°C to 125°C), and package type (14-DIP through-hole).

Q: Can these parts be used in surface-mount applications?

A: No. Both the CD74HC32EE4 and CD74HC32E are through-hole components in 14-DIP packages. They are not suitable for surface-mount PCB assembly without appropriate adapters or carrier boards.

Q: What is the maximum supply voltage for these components?

A: The maximum supply voltage is 6V. Operation above this voltage may damage the device.

Q: Are there any temperature derating considerations?

A: Both parts operate across the full temperature range of -55°C to 125°C without derating. Electrical specifications remain constant across this range.