74ACT18825MTDX Equivalent & Substitute Parts

Part Overview

The 74ACT18825MTDX is a non-inverting buffer logic IC manufactured by onsemi, featuring 2 elements with 9 bits per element and 3-state output capability. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The part operates within the 74ACT logic family standard, with supply voltage range of 4.5V to 5.5V and output current capability of 24mA for both high and low states.

Substiute Parts

74ACT18825MTDX

onsemiIn Stock: 81674ACT18825MTDX Datasheet

Current PartRFQ

74ACT16825DL

Texas InstrumentsIn Stock: 319674ACT16825DL Datasheet

SimilarRFQ

74ACT16825DLR

Texas InstrumentsIn Stock: 110574ACT16825DLR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74ACT18825MTDX is determined by strict equivalence across the following critical parameters:

• Logic type and function (non-inverting buffer)
• Element and bit configuration (2 elements, 9 bits per element)
• Output architecture (3-state capability)
• Electrical performance (24mA output current, 4.5V–5.5V supply)
• Operating temperature range (-40°C to 85°C)
• Series classification (74ACT logic family)
• Moisture sensitivity level (MSL 1)

The identified substitute parts 74ACT16825DL and 74ACT16825DLR, both manufactured by Texas Instruments, meet all functional and electrical requirements. Differences exist only in packaging format and product lifecycle status, which do not affect electrical compatibility or functional performance in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the 74ACT18825MTDX, the 74ACT16825DLR is the primary recommended substitute. This part maintains active product status with Texas Instruments, ensuring long-term availability and supply chain stability. The 74ACT16825DLR is ROHS3 compliant and supplied in tape and reel format, supporting automated assembly processes.

The 74ACT16825DL serves as a secondary option, offering equivalent electrical and functional performance with last-time-buy status from Texas Instruments. This part is available in tube packaging format.

Both substitute parts are electrically and functionally interchangeable with the 74ACT18825MTDX. Package case dimensions differ slightly (56-BSSOP at 0.295" width versus 56-TFSOP at 0.240" width), requiring verification of PCB layout compatibility during design transition.

Frequently Asked Questions (FAQ)

Q: Are the 74ACT16825DL and 74ACT16825DLR electrically identical to the 74ACT18825MTDX?

A: Yes. All three parts share identical logic type, element configuration, bit count, output type, current ratings, supply voltage range, operating temperature, and moisture sensitivity level. Electrical performance and functional behavior are equivalent.

Q: What is the difference between 74ACT16825DL and 74ACT16825DLR?

A: Both parts are functionally identical. The primary difference is packaging format: 74ACT16825DL is supplied in tube packaging, while 74ACT16825DLR is supplied in tape and reel format. The 74ACT16825DLR also maintains active product status, whereas the 74ACT16825DL is last-time-buy.

Q: Will the substitute parts fit the same PCB footprint as the 74ACT18825MTDX?

A: The package case dimensions differ. The 74ACT18825MTDX uses 56-TFSOP (0.240" width), while both substitute parts use 56-BSSOP (0.295" width). PCB layout compatibility must be verified before implementation.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both 74ACT16825DL and 74ACT16825DLR are ROHS3 compliant. The 74ACT18825MTDX RoHS status was not specified in available documentation.

Q: Which substitute part should be selected for new designs?

A: The 74ACT16825DLR is recommended for new designs due to its active product status, ensuring continued availability and support from Texas Instruments.