MM74HC175MTC Equivalent & Substitute Parts

Part Overview

The MM74HC175MTC is a D-type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 4-bit configuration and complementary output type. This component is classified as a Master Reset function device operating at positive edge trigger. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

MM74HC175MTC

onsemiIn Stock: 1149MM74HC175MTC Datasheet

Current PartRFQ

MM74HC175MTCX

Fairchild SemiconductorIn Stock: 2079MM74HC175MTCX Datasheet

DirectRFQ

MC74HC175ADTR2G

onsemiIn Stock: 2435MC74HC175ADTR2G Datasheet

SimilarRFQ

NLV74HC175ADTR2G

onsemiIn Stock: 3613NLV74HC175ADTR2G Datasheet

SimilarRFQ

SN74HC175PW

Texas InstrumentsIn Stock: 1241SN74HC175PW Datasheet

DirectRFQ

SN74HC175PWR

Texas InstrumentsIn Stock: 5185SN74HC175PWR Datasheet

DirectRFQ

74HC175PW,118

Nexperia USA Inc.In Stock: 403774HC175PW,118 Datasheet

SimilarRFQ

SN74HC175APWR

Texas InstrumentsIn Stock: 2147SN74HC175APWR Datasheet

SimilarRFQ

SN74HC175DBR

Texas InstrumentsIn Stock: 8823SN74HC175DBR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MM74HC175MTC is determined by strict equivalence across the following critical parameters: base product number (74HC175), function (Master Reset), type (D-Type), output type (Complementary), number of elements (1), number of bits per element (4), trigger type (Positive Edge), voltage supply range (2V ~ 6V), and package configuration (16-TSSOP or compatible variants). All substitute parts must maintain identical logic functionality and electrical interface characteristics.

Substitute parts are grouped into two categories:

Direct Substitutes maintain identical package specifications (16-TSSOP, 0.173", 4.40mm Width) and are pin-compatible replacements.

Similar Substitutes share the same base product number and functional characteristics but may differ in package dimensions (16-SSOP variant), operating temperature range, or performance specifications (clock frequency, propagation delay, quiescent current). These parts require mechanical and thermal compatibility verification before implementation.

Parameter Comparison

Engineering Selection Recommendations

Primary Direct Substitutes (Highest Compatibility):

MM74HC175MTCX (Fairchild Semiconductor, Active status) provides direct electrical and mechanical equivalence to the MM74HC175MTC. This part maintains identical clock frequency (70 MHz), propagation delay (26ns), quiescent current (8 µA), and package configuration. Active product status ensures ongoing availability and supply chain continuity.

SN74HC175PWR (Texas Instruments, Active status) and SN74HC175PW (Texas Instruments, Discontinued at DiGi Electronics) are functionally equivalent with identical propagation delay and operating temperature range. Both maintain the 16-TSSOP package footprint. SN74HC175PWR is recommended for new designs due to active status and Tape & Reel packaging availability.

Secondary Substitutes (Extended Operating Range):

MC74HC175ADTR2G (onsemi, Active status) extends the operating temperature range to -55°C ~ 125°C and offers improved propagation delay (22ns) with reduced quiescent current (4 µA). This part is suitable for applications requiring enhanced thermal performance. RoHS3 compliance is confirmed.

74HC175PW,118 (Nexperia USA Inc., Active status) provides the highest clock frequency (89 MHz) among available substitutes with extended upper operating temperature limit (-40°C ~ 125°C). This part is appropriate for high-speed applications within the specified voltage supply range.

SN74HC175APWR (Texas Instruments, Active status) combines active product status with improved propagation delay (24ns) and reduced quiescent current (4 µA), offering balanced performance characteristics.

Package Variant:

SN74HC175DBR (Texas Instruments, Active status) uses a 16-SSOP package (0.209", 5.30mm Width) instead of the standard 16-TSSOP. This part requires PCB layout modification and is suitable only when mechanical constraints permit the larger package footprint.

Obsolete Parts to Avoid:

NLV74HC175ADTR2G (onsemi, Obsolete status) should not be selected for new designs despite functional equivalence, as obsolete status indicates discontinued manufacturing and limited supply availability.

Frequently Asked Questions (FAQ)

Q: Can I directly replace MM74HC175MTC with MM74HC175MTCX?

A: Yes. MM74HC175MTCX is a direct substitute with identical electrical specifications, clock frequency (70 MHz), propagation delay (26ns), and 16-TSSOP package configuration. Both parts operate within the 2V ~ 6V supply range and -40°C ~ 85°C temperature range.

Q: What is the difference between 16-TSSOP and 16-SSOP packages?

A: 16-TSSOP measures 0.173" (4.40mm) in width, while 16-SSOP measures 0.209" (5.30mm) in width. These are different physical packages requiring different PCB footprints. SN74HC175DBR uses the larger 16-SSOP variant and requires PCB layout modification for implementation.

Q: Which substitute offers the best performance?

A: Performance depends on application requirements. SN74HC175APWR provides the fastest propagation delay (24ns) with reduced quiescent current (4 µA). 74HC175PW,118 offers the highest clock frequency (89 MHz). MC74HC175ADTR2G provides the widest operating temperature range (-55°C ~ 125°C).

Q: Are all substitutes RoHS compliant?

A: RoHS3 compliance is confirmed for MC74HC175ADTR2G, SN74HC175PWR, SN74HC175PW, 74HC175PW,118, SN74HC175APWR, and SN74HC175DBR. Compliance documentation should be verified with the specific manufacturer for procurement requirements.

Q: Can I use these substitutes in applications requiring -55°C operation?

A: Only MC74HC175ADTR2G supports the extended lower temperature limit of -55°C. All other substitutes are rated for -40°C minimum operating temperature. Verify application thermal requirements before part selection.

Q: What is the difference in quiescent current between parts?

A: MM74HC175MTC, SN74HC175PWR, SN74HC175PW, and 74HC175PW,118 specify 8 µA quiescent current. MC74HC175ADTR2G, NLV74HC175ADTR2G, and SN74HC175APWR specify 4 µA. Lower quiescent current reduces power consumption in standby conditions.

Q: Which substitute has the longest propagation delay?

A: 74HC175PW,118 specifies 30ns maximum propagation delay at 6V with 50pF load, compared to 26ns for most other parts and 22ns for MC74HC175ADTR2G and NLV74HC175ADTR2G. Verify timing requirements for critical path applications.