SN74HC652DWR Equivalent & Substitute Parts

Part Overview

The SN74HC652DWR is a non-inverting transceiver IC manufactured by Texas Instruments, designed for 8-bit data transmission with 3-state output capability. This component operates across a 2V to 6V supply voltage range and is housed in a 24-SOIC surface mount package. The device is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Alternative components may be required due to inventory constraints, design optimization, or supply chain considerations.

Substiute Parts

SN74HC652DWR

Texas InstrumentsIn Stock: 3048SN74HC652DWR Datasheet

Current PartRFQ

SN74HC646DWR

Texas InstrumentsIn Stock: 3982SN74HC646DWR Datasheet

Parametric EquivalentRFQ

74HC86D,653

Nexperia USA Inc.In Stock: 271374HC86D,653 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74HC652DWR are evaluated based on the following critical parameters that determine functional and mechanical compatibility:

Parametric Equivalence Criteria:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Voltage - Supply: 2V ~ 6V
• Current - Output High, Low: 7.8mA, 7.8mA
• Package / Case: 24-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 85°C (TA)

The SN74HC646DWR qualifies as a parametric equivalent, matching all critical electrical and mechanical specifications. The 74HC86D,653 is listed as a manufacturer-recommended alternative but operates under different functional parameters and package configuration, requiring design-level evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

SN74HC646DWR (Parametric Equivalent): This component is the direct parametric equivalent to the SN74HC652DWR. Both devices share identical electrical specifications, package configuration, and compliance certifications. Selection between these two components is based on inventory availability and supply chain considerations. Both maintain active production status with ROHS3 compliance and unlimited moisture sensitivity rating.

74HC86D,653 (Manufacturer Recommended): This component is recommended by the manufacturer but operates under fundamentally different functional parameters. The 74HC86D,653 is a 4-channel XOR logic gate with 2-input configuration, compared to the 8-bit non-inverting transceiver architecture of the SN74HC652DWR. The package footprint differs significantly (14-SOIC versus 24-SOIC), and the output type is standard rather than 3-state. This component requires circuit-level design modifications and is not a direct pin-compatible substitute. Selection of this alternative is appropriate only when application requirements align with XOR logic functionality and the smaller package footprint is advantageous.

Frequently Asked Questions (FAQ)

Q: Can the SN74HC646DWR be used as a direct replacement for the SN74HC652DWR?

A: Yes. The SN74HC646DWR is a parametric equivalent with identical electrical specifications, output characteristics, supply voltage range, operating temperature range, and 24-SOIC package configuration. No circuit modifications are required for direct substitution.

Q: Is the 74HC86D,653 a pin-compatible substitute?

A: No. The 74HC86D,653 uses a 14-SOIC package compared to the 24-SOIC package of the SN74HC652DWR. Additionally, the functional architecture differs fundamentally—the 74HC86D,653 is a 4-channel XOR gate, not an 8-bit transceiver. Pin-to-pin compatibility does not exist, and circuit redesign is necessary for implementation.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: logic type (transceiver, non-inverting), number of elements (1), bits per element (8), output type (3-state), output current specifications (7.8mA high and low), supply voltage range (2V ~ 6V), operating temperature range (-40°C ~ 85°C), and package configuration (24-SOIC surface mount).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both the SN74HC646DWR and 74HC86D,653 are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), matching the compliance profile of the SN74HC652DWR.

Q: What is the operating temperature difference between the main part and the manufacturer-recommended alternative?

A: The SN74HC652DWR and SN74HC646DWR both operate from -40°C to 85°C. The 74HC86D,653 operates from -40°C to 125°C, providing an extended upper temperature range. This difference is relevant only if the application requires operation above 85°C.