SN74HC590ADE4 Equivalent & Substitute Parts

Part Overview

The SN74HC590ADE4 is an 8-bit binary counter logic IC manufactured by Texas Instruments, housed in a 16-SOIC surface mount package. This component functions as a positive edge-triggered counter with asynchronous reset capability, operating across a 2V to 6V supply voltage range with a maximum count rate of 24 MHz. The part is currently in Last Time Buy status, indicating limited future availability. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring this counter functionality.

Substiute Parts

SN74HC590ADE4

Texas InstrumentsIn Stock: 832SN74HC590ADE4 Datasheet

Current PartRFQ

SN74HC590ADR

Texas InstrumentsIn Stock: 3403SN74HC590ADR Datasheet

MFR RecommendedRFQ

SN74HC590AD

Texas InstrumentsIn Stock: 912SN74HC590AD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74HC590ADE4 are qualified based on strict electrical and mechanical parameter matching within the 74HC590 base product family. All substitute candidates maintain identical functional specifications: 8-bit binary counter architecture, positive edge triggering, asynchronous reset, 24 MHz count rate, 2V to 6V supply voltage range, and -40°C to 85°C operating temperature. The 16-SOIC package footprint remains constant across all qualified substitutes, ensuring direct PCB compatibility. Substitution eligibility is determined solely by these core parameters; packaging format (tube, cut tape, or reel) and product status variations do not affect electrical or mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The SN74HC590ADR is the primary substitute for the SN74HC590ADE4. Both parts are manufactured by Texas Instruments with identical electrical and mechanical specifications. The SN74HC590ADR maintains Active product status, providing superior long-term availability compared to the Last Time Buy status of the original part. The packaging format difference (Cut Tape & Digi-Reel versus Tube) does not affect functional compatibility; this distinction addresses only supply chain and handling preferences.

The SN74HC590AD serves as a secondary substitute option. It maintains full electrical and mechanical equivalence to the SN74HC590ADE4, including identical 16-SOIC package geometry and all functional parameters. However, the SN74HC590AD carries Last Time Buy status, similar to the original part, and therefore does not provide improved supply continuity.

Both substitute parts carry ROHS3 compliance and REACH Unaffected status, matching the regulatory profile of the original component.

Frequently Asked Questions (FAQ)

Q: Are the SN74HC590ADR and SN74HC590AD direct pin-for-pin replacements for the SN74HC590ADE4?

A: Yes. All three parts share identical 16-SOIC package geometry, pin count, and pinout configuration. Direct PCB substitution is supported without layout modifications.

Q: Does the packaging format difference between tube and cut tape affect electrical performance?

A: No. Packaging format (tube, cut tape, or reel) is a supply chain and handling specification only. It does not alter electrical characteristics, timing parameters, or functional behavior.

Q: Which substitute part offers the best long-term availability?

A: The SN74HC590ADR is recommended for new designs and long-term supply assurance. It maintains Active product status, whereas both the SN74HC590ADE4 and SN74HC590AD are designated Last Time Buy.

Q: Are all three parts compliant with the same regulatory standards?

A: Yes. The SN74HC590ADE4, SN74HC590ADR, and SN74HC590AD are all ROHS3 Compliant and REACH Unaffected, meeting identical environmental and regulatory requirements.

Q: Can I use these parts interchangeably in existing designs?

A: Yes. The electrical specifications, operating ranges, and package footprints are identical across all three parts. Substitution requires no design changes or re-qualification.

Q: What is the significance of the Last Time Buy status?

A: Last Time Buy indicates that the manufacturer will discontinue production after a specified date. Parts with this status have limited future availability. The SN74HC590ADR, with Active status, is the recommended choice for designs requiring extended component availability.