SN74HC32ANS Equivalent & Substitute Parts

Part Overview

The SN74HC32ANS is a 4-channel 2-input OR Gate logic integrated circuit manufactured by Texas Instruments in the 74HC series. This component is classified as Last Time Buy, indicating discontinued production with limited remaining inventory. The SN74HC32ANS is packaged in 14-SO surface mount configuration and operates across a 2V to 6V supply voltage range, making it suitable for general-purpose digital logic applications requiring OR gate functionality.

Identification of equivalent and substitute parts is necessary due to the Last Time Buy status of the SN74HC32ANS. Alternative parts with identical or compatible electrical and mechanical specifications ensure design continuity and supply chain reliability for applications currently utilizing this component.

Substiute Parts

SN74HC32ANS

Texas InstrumentsIn Stock: 3156SN74HC32ANS Datasheet

Current PartRFQ

SN74HC32ANSR

Texas InstrumentsIn Stock: 5441SN74HC32ANSR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74HC32ANS is determined by strict equivalence across the following critical parameters:

Functional Equivalence: Logic type (OR Gate), number of circuits (4), and number of inputs per circuit (2) must be identical.

Electrical Compatibility: Supply voltage range (2V ~ 6V), quiescent current (2 µA maximum), output current specifications (5.2mA high and low), and propagation delay (13ns @ 6V, 50pF) must match or remain within the original specifications.

Mechanical Compatibility: Mounting type (Surface Mount), package designation (14-SOIC), and physical dimensions (0.209" width, 5.30mm) must be identical to ensure PCB layout compatibility.

Regulatory Compliance: RoHS3 compliance and MSL rating (1 - Unlimited) must be maintained.

Series Designation: All substitute parts must belong to the 74HC logic series to ensure consistent logic family characteristics.

The SN74HC32ANSR qualifies as a direct substitute based on these criteria, with the primary distinction being packaging format (Tape & Reel versus individual packaging) and product status (Active versus Last Time Buy).

Parameter Comparison

Engineering Selection Recommendations

SN74HC32ANSR is the direct functional and electrical equivalent of the SN74HC32ANS. Both components are manufactured by Texas Instruments and share identical electrical specifications, operating parameters, and physical package dimensions.

The primary distinction between these parts is product status and packaging format. The SN74HC32ANS carries Last Time Buy status with limited inventory (3100 pieces), while the SN74HC32ANSR maintains Active status with higher inventory availability (5412 pieces). The SN74HC32ANSR is supplied in Tape & Reel format, which is standard for high-volume production environments and automated assembly processes.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring regulatory and environmental compatibility. Selection between these parts should be based on procurement volume requirements and assembly process capabilities. For applications requiring individual component packaging, the SN74HC32ANS remains available while inventory persists. For production environments utilizing automated tape-and-reel feeding systems, the SN74HC32ANSR is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the SN74HC32ANSR directly replace the SN74HC32ANS in existing designs?

A: Yes. The SN74HC32ANSR is electrically and mechanically identical to the SN74HC32ANS. Both components feature identical pin configurations, electrical specifications, operating temperature ranges, and 14-SOIC package dimensions. Direct substitution is supported without design modification.

Q: What is the difference between SN74HC32ANS and SN74HC32ANSR?

A: The primary differences are packaging format and product status. The SN74HC32ANS is supplied in individual packaging with Last Time Buy status. The SN74HC32ANSR is supplied in Tape & Reel format with Active product status. All electrical and functional specifications are identical.

Q: Why is the SN74HC32ANS marked as Last Time Buy?

A: Last Time Buy designation indicates that Texas Instruments has discontinued production of this specific packaging configuration. Existing inventory remains available for purchase, but no future production is planned. The SN74HC32ANSR (Tape & Reel format) continues in active production as the standard packaging option.

Q: Are there any input logic level differences between these parts?

A: Input logic level specifications differ between the two parts. The SN74HC32ANS specifies Input Logic Level - Low: 0.5V ~ 1.8V and High: 1.5V ~ 4.2V. The SN74HC32ANSR specifies Input Logic Level - Low: 0.1V ~ 0.26V and High: 1.9V ~ 5.9V. Both specifications fall within the 74HC logic family standards and are compatible with standard CMOS logic levels. Application designs should reference the specific part datasheet for precise input threshold requirements.

Q: Is the 14-SOIC package compatible with existing PCB layouts?

A: Yes. Both the SN74HC32ANS and SN74HC32ANSR use identical 14-SOIC packaging with 0.209" width and 5.30mm body dimensions. PCB footprints, land patterns, and assembly processes remain unchanged between these parts.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and does not require special moisture control during storage or handling. This simplifies inventory management and reduces storage costs compared to components with higher MSL ratings.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the SN74HC32ANS and SN74HC32ANSR are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components in most markets.