74LVC574AT20-13 Equivalent & Substitute Parts

Part Overview

The 74LVC574AT20-13 is a single-element D-type flip-flop logic integrated circuit manufactured by Diodes Incorporated. This 8-bit positive edge-triggered device operates across a supply voltage range of 1.65V to 3.6V and is housed in a 20-TSSOP surface mount package. The part is currently in active production status with ROHS3 compliance and is suitable for digital logic applications requiring edge-triggered data storage and transfer. Equivalent and substitute parts are identified based on matching functional characteristics, electrical parameters, and package specifications to support design flexibility and supply chain continuity.

Substiute Parts

74LVC574AT20-13

Diodes IncorporatedIn Stock: 1017174LVC574AT20-13 Datasheet

Current PartRFQ

74LVC374AT20-13

Diodes IncorporatedIn Stock: 541774LVC374AT20-13 Datasheet

Parametric EquivalentRFQ

74LVC574AT20-13

Diodes IncorporatedIn Stock: 1017174LVC574AT20-13 Datasheet

Parametric EquivalentRFQ

MC74LCX574DTR2G

onsemiIn Stock: 85415MC74LCX574DTR2G Datasheet

DirectRFQ

SN74LVC574APWR

Texas InstrumentsIn Stock: 237996SN74LVC574APWR Datasheet

DirectRFQ

SN74LVC574AQPWREP

Texas InstrumentsIn Stock: 913SN74LVC574AQPWREP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74LVC574AT20-13 are grouped based on the following critical parameters that determine functional interchangeability:

Primary Substitution Criteria:

• Type: D-Type Flip Flop with 8-bit configuration
• Trigger Type: Positive Edge
• Package: 20-TSSOP surface mount
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: Non-Inverted (primary requirement)
• Voltage Supply Range: Minimum 1.65V support
• Operating Temperature: Minimum -40°C to 125°C range
• RoHS Compliance: ROHS3 Compliant

Parametric Equivalent: The 74LVC374AT20-13 (Diodes Incorporated) matches all primary criteria with identical supply voltage, temperature range, and package specifications. Propagation delay characteristics differ slightly (6.8ns vs 7.1ns) but remain within acceptable logic timing parameters.

Direct Manufacturer Equivalents: The MC74LCX574DTR2G (onsemi) and SN74LVC574APWR (Texas Instruments) provide functional equivalence with extended clock frequency capability (150 MHz vs 125 MHz) and tri-state output capability. Both maintain the 20-TSSOP package and positive edge trigger configuration.

Manufacturer Recommended Equivalent: The SN74LVC574AQPWREP (Texas Instruments) is the manufacturer-recommended substitute with tri-state output, extended clock frequency (150 MHz), and identical 8-bit D-type configuration in 20-TSSOP packaging.

Parameter Comparison

Engineering Selection Recommendations

74LVC374AT20-13 (Parametric Equivalent): This Diodes Incorporated part provides direct parametric equivalence with identical supply voltage range (1.65V ~ 3.6V) and full operating temperature span (-40°C ~ 125°C). Both parts maintain ROHS3 compliance and active product status. Selection is appropriate for applications where the primary design constraint is supply voltage compatibility and temperature range coverage.

MC74LCX574DTR2G (Direct Manufacturer Equivalent): The onsemi part offers extended clock frequency (150 MHz) and tri-state output capability with improved moisture sensitivity (MSL 1 vs MSL 3). The minimum supply voltage is 2V, which excludes applications requiring 1.65V operation. Operating temperature range is limited to -40°C ~ 85°C. Selection is appropriate for applications with higher frequency requirements and standard environmental conditions.

SN74LVC574APWR (Direct Manufacturer Equivalent): The Texas Instruments part maintains full supply voltage compatibility (1.65V ~ 3.6V) and extended operating temperature range (-40°C ~ 125°C) with tri-state output and 150 MHz clock frequency. Moisture sensitivity is MSL 1. This part provides the broadest electrical compatibility with the original 74LVC574AT20-13 while offering enhanced output capability.

SN74LVC574AQPWREP (Manufacturer Recommended Equivalent): Texas Instruments designates this as the recommended substitute. It combines tri-state output, 150 MHz clock frequency, and MSL 1 moisture sensitivity. The minimum supply voltage is 2V and operating temperature range is -40°C ~ 125°C. This part is appropriate for new designs where tri-state functionality is beneficial and supply voltage remains above 2V.

All substitute parts maintain ROHS3 compliance, active product status, and identical 20-TSSOP packaging, ensuring mechanical and environmental regulatory compatibility with the original 74LVC574AT20-13.

Frequently Asked Questions (FAQ)

Q: Can the 74LVC374AT20-13 be used as a direct replacement for the 74LVC574AT20-13?

A: The 74LVC374AT20-13 is a parametric equivalent that matches the 74LVC574AT20-13 in supply voltage range (1.65V ~ 3.6V), operating temperature (-40°C ~ 125°C), package type (20-TSSOP), and core D-type flip-flop functionality. Both parts are manufactured by Diodes Incorporated and maintain identical RoHS compliance. Propagation delay specifications differ slightly (6.8ns vs 7.1ns at 3.3V), but both operate within standard logic timing parameters. Substitution is appropriate for applications where these electrical characteristics are acceptable.

Q: What is the difference between the 74LVC574AT20-13 and the SN74LVC574APWR?

A: Both parts are 8-bit D-type flip-flops in 20-TSSOP packaging with identical supply voltage range (1.65V ~ 3.6V) and operating temperature (-40°C ~ 125°C). The primary differences are: (1) Manufacturer—Diodes Incorporated vs Texas Instruments; (2) Output Type—Non-Inverted vs Tri-State, Non-Inverted; (3) Clock Frequency—125 MHz vs 150 MHz; (4) Moisture Sensitivity—MSL 3 vs MSL 1. The SN74LVC574APWR provides enhanced output flexibility and improved moisture handling characteristics.

Q: Is the MC74LCX574DTR2G compatible with the 74LVC574AT20-13?

A: The MC74LCX574DTR2G is functionally compatible as a direct manufacturer equivalent with identical 8-bit D-type configuration, positive edge trigger, and 20-TSSOP package. However, there are electrical differences: (1) Minimum supply voltage is 2V instead of 1.65V, which excludes low-voltage applications; (2) Operating temperature range is -40°C ~ 85°C instead of -40°C ~ 125°C, limiting high-temperature operation; (3) Clock frequency is 150 MHz vs 125 MHz; (4) Moisture sensitivity is MSL 1 vs MSL 3. Substitution is appropriate only when supply voltage remains above 2V and operating temperature does not exceed 85°C.

Q: Why does the SN74LVC574AQPWREP have a higher clock frequency than the 74LVC574AT20-13?

A: The SN74LVC574AQPWREP operates at 150 MHz compared to the 74LVC574AT20-13 at 125 MHz. This reflects the enhanced performance characteristics of the Texas Instruments implementation. Both parts maintain identical 8-bit D-type functionality and 20-TSSOP packaging. The higher clock frequency does not affect compatibility in applications operating below 125 MHz and provides additional performance margin for timing-critical designs.

Q: Are all substitute parts available in the same packaging?

A: Yes. All substitute parts listed—74LVC374AT20-13, MC74LCX574DTR2G, SN74LVC574APWR, and SN74LVC574AQPWREP—are housed in 20-TSSOP (0.173", 4.40mm Width) surface mount packages. This ensures mechanical and PCB layout compatibility with the original 74LVC574AT20-13 without requiring design modifications.

Q: What is the significance of MSL (Moisture Sensitivity Level) differences?

A: Moisture Sensitivity Level indicates the maximum time a component can be exposed to ambient conditions (23°C, 50% relative humidity) before soldering. The 74LVC574AT20-13 has MSL 3 (168 hours), while substitute parts from Texas Instruments and onsemi have MSL 1 (Unlimited). MSL 1 parts provide greater flexibility in storage and handling without requiring desiccant packaging or baking procedures. For applications with extended storage or humid environments, MSL 1 parts offer operational advantages.

Q: Can the 74LVC574AT20-13 be used in applications requiring supply voltages below 2V?

A: The 74LVC574AT20-13 supports supply voltages from 1.65V to 3.6V. The MC74LCX574DTR2G and SN74LVC574AQPWREP have minimum supply voltages of 2V, making them unsuitable for 1.65V applications. The 74LVC374AT20-13 and SN74LVC574APWR maintain the 1.65V minimum, ensuring compatibility with low-voltage designs.

Q: What is the difference between non-inverted and tri-state output types?

A: Non-inverted output (74LVC574AT20-13, 74LVC374AT20-13) provides standard logic levels without output control capability. Tri-state output (MC74LCX574DTR2G, SN74LVC574APWR, SN74LVC574AQPWREP) includes an output enable function that allows the output to be placed in a high-impedance state, enabling multiple devices to share a common bus without contention. Tri-state capability is beneficial in multiplexed or bus-oriented applications but is not required for simple point-to-point connections.