SN74HC573ADWR Equivalent & Substitute Parts

Part Overview

The SN74HC573ADWR is a D-Type Transparent Latch logic IC manufactured by Texas Instruments, featuring an 8:8 circuit configuration with tri-state output capability. This component operates across a 2V to 6V supply voltage range and is housed in a 20-SOIC surface mount package. The part maintains Active product status and is ROHS3 compliant, making it suitable for modern electronic applications requiring latch functionality with controlled output states.

Equivalent and substitute parts are identified to address inventory availability, lead time constraints, or specific application requirements while maintaining electrical and mechanical compatibility within the 74HC logic family.

Key Parameters

Parameter	Value
Manufacturer Part Number	SN74HC573ADWR
Manufacturer	Texas Instruments
Logic Type	D-Type Transparent Latch
Circuit Configuration	8:8
Output Type	Tri-State
Voltage Supply Range	2V ~ 6V
Propagation Delay	23ns
Output Current (High/Low)	7.8mA / 7.8mA
Operating Temperature	-40°C ~ 85°C
Package Type	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SN74HC573ADWR are classified based on strict electrical and mechanical parameter alignment within the 74HC logic family. Substitution eligibility is determined by the following criteria:

Primary Substitution Parameters:

Logic Type: D-Type Transparent Latch
Circuit Configuration: 8:8
Output Type: Tri-State
Voltage Supply Range: 2V ~ 6V
Package Type: 20-SOIC (0.295", 7.50mm Width)
Output Current Capability: 7.8mA (High and Low)
RoHS Compliance: ROHS3 Compliant

Secondary Compatibility Factors:

Propagation Delay: 23ns (reference value; substitutes within 14ns to 26ns remain functionally compatible)
Operating Temperature Range: -40°C ~ 85°C (substitutes with extended ranges to -55°C or higher upper limits are compatible)
Moisture Sensitivity Level: MSL 1 or MSL 3 acceptable for standard applications
Packaging Format: Cut Tape (CT) & Digi-Reel® or Tape & Reel (TR) formats are interchangeable

Parts meeting all primary parameters are classified as direct parametric equivalents or manufacturer-recommended substitutes. Variations in propagation delay and temperature range do not affect substitution eligibility when all primary electrical and mechanical parameters align.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Circuit	Output Type	Voltage Supply	Propagation Delay	Output Current (H/L)	Operating Temp	Package	MSL	Product Status
SN74HC573ADWR	Texas Instruments	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	23ns	7.8mA / 7.8mA	-40°C ~ 85°C	20-SOIC	1	Active
SN74HC563DWR	Texas Instruments	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	23ns	7.8mA / 7.8mA	-40°C ~ 85°C	20-SOIC	1	Active
74HC573D,653	Nexperia USA Inc.	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	14ns	7.8mA / 7.8mA	-40°C ~ 125°C	20-SOIC	1	Active
74HC573D-Q100,118	Nexperia USA Inc.	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	14ns	7.8mA / 7.8mA	-40°C ~ 125°C	20-SOIC	1	Active
MC74HC573ADWG	onsemi	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	26ns	7.8mA / 7.8mA	-55°C ~ 125°C	20-SOIC	3	Active
MC74HC573ADWR2G	onsemi	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	26ns	7.8mA / 7.8mA	-55°C ~ 125°C	20-SOIC	3	Active
MM74HC573WMX	onsemi	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	15ns	7.8mA / 7.8mA	-40°C ~ 85°C	20-SOIC	3	Active
MM74HC373WMX	onsemi	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	19ns	7.8mA / 7.8mA	-40°C ~ 85°C	20-SOIC	3	Active

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment with modern manufacturing standards.

Texas Instruments SN74HC563DWR provides direct parametric equivalence with identical electrical specifications and MSL 1 moisture sensitivity rating, making it the primary alternative when Texas Instruments sourcing is required.

Nexperia USA Inc. 74HC573D,653 and 74HC573D-Q100,118 offer improved propagation delay performance (14ns versus 23ns) and extended operating temperature range (-40°C ~ 125°C), with the Q100,118 variant providing AEC-Q100 automotive qualification for applications requiring automotive-grade components.

onsemi MC74HC573ADWG and MC74HC573ADWR2G extend the operating temperature range to -55°C ~ 125°C, accommodating industrial and extended-temperature applications. These parts carry MSL 3 moisture sensitivity and are suitable for environments requiring broader thermal performance.

onsemi MM74HC573WMX delivers faster propagation delay (15ns) while maintaining the standard -40°C ~ 85°C operating range, offering performance optimization for timing-critical applications.

onsemi MM74HC373WMX functions as a parametric equivalent with 19ns propagation delay, maintaining full electrical and mechanical compatibility within the 74HC logic family.

Frequently Asked Questions (FAQ)

Q: Can SN74HC563DWR be used as a direct replacement for SN74HC573ADWR?

A: Yes. SN74HC563DWR meets all primary substitution parameters: identical D-Type Transparent Latch logic type, 8:8 circuit configuration, tri-state output, 2V ~ 6V supply voltage, 7.8mA output current, 20-SOIC package, and MSL 1 moisture sensitivity. Propagation delay and operating temperature are equivalent.

Q: What is the difference between 74HC573 and 74HC373 variants?

A: Both MM74HC573WMX and MM74HC373WMX share identical electrical specifications and package configuration. The base product numbers (74HC573 versus 74HC373) indicate different internal latch designs within the 74HC family, but both function as D-Type Transparent Latches with 8:8 configuration and tri-state output. Selection depends on specific circuit design requirements.

Q: Are Nexperia parts compatible with Texas Instruments specifications?

A: Yes. Nexperia 74HC573D,653 and 74HC573D-Q100,118 maintain full electrical compatibility with the SN74HC573ADWR across all primary parameters: logic type, circuit configuration, output type, voltage supply range, output current capability, and package type. Propagation delay is faster (14ns), and operating temperature range is extended, providing performance advantages.

Q: What does MSL 3 (168 Hours) mean compared to MSL 1 (Unlimited)?

A: MSL 3 indicates the component requires moisture bake-out procedures if exposed to humidity for extended periods before soldering, with a 168-hour floor life limit. MSL 1 (Unlimited) has no moisture sensitivity restrictions. Both ratings are acceptable for standard manufacturing processes; MSL 3 parts require standard moisture control procedures during storage and handling.

Q: Can I use the automotive-qualified 74HC573D-Q100,118 in non-automotive applications?

A: Yes. The AEC-Q100 qualification indicates the part meets automotive reliability standards and is suitable for any application. Automotive-qualified parts are fully compatible with standard industrial and commercial applications.

Q: Does propagation delay variation affect circuit functionality?

A: Propagation delay differences (14ns to 26ns) do not affect functional compatibility. All substitute parts maintain the same logic operation and output characteristics. Delay variations are relevant only for timing-critical applications where specific propagation delay specifications are required by circuit design.

Q: Are Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) packaging formats interchangeable?

A: Yes. Both packaging formats contain identical components in 20-SOIC configuration. Format selection depends on assembly equipment and volume requirements. Cut Tape is suitable for lower-volume or mixed-component assembly, while Tape & Reel is optimized for high-volume automated assembly.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message