74ACT1284MTCX Equivalent & Substitute Parts

Part Overview

The 74ACT1284MTCX is an IEEE STD 1284 Translation Transceiver IC manufactured by onsemi, designed for 7-bit bus interface applications in TTL-compatible logic systems. This component operates within a 4.5V to 5.5V supply voltage range and is housed in a 20-TSSOP surface mount package.

The 74ACT1284MTCX is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing system maintenance, design updates, and procurement continuity for applications currently utilizing this component.

Substiute Parts

74ACT1284MTCX

onsemiIn Stock: 396774ACT1284MTCX Datasheet

Current PartRFQ

SN74ACT1284PWR

Texas InstrumentsIn Stock: 5454SN74ACT1284PWR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74ACT1284MTCX are identified based on the following critical parameters that determine functional and physical compatibility:

• Logic Type: IEEE STD 1284 Translation Transceiver
• Number of Bits: 7-bit configuration
• Supply Voltage: 4.5V ~ 5.5V operating range
• Package / Case: 20-TSSOP form factor with identical 0.173" (4.40mm) width
• Mounting Type: Surface Mount technology
• Base Product Number: 74ACT1284 series designation

The SN74ACT1284PWR manufactured by Texas Instruments meets all these substitution criteria. Both parts share identical logic functionality, bit configuration, supply voltage specifications, and physical packaging, enabling direct substitution in applications designed for the 74ACT1284MTCX.

Parameter Comparison

Engineering Selection Recommendations

The SN74ACT1284PWR is the primary substitute for the obsolete 74ACT1284MTCX. Both components are REACH Unaffected and share identical electrical and mechanical specifications across all critical parameters.

The SN74ACT1284PWR carries Active product status, ensuring ongoing availability and supply chain support. The Texas Instruments component is RoHS3 Compliant, providing additional environmental compliance assurance for new designs and system updates.

The operating temperature range difference (-40°C ~ 85°C for the onsemi part versus 0°C ~ 70°C for the Texas Instruments part) must be evaluated against specific application requirements. Applications operating below 0°C or above 70°C require confirmation that the reduced temperature range of the SN74ACT1284PWR is acceptable for the intended use case.

Frequently Asked Questions (FAQ)

Q: Can the SN74ACT1284PWR directly replace the 74ACT1284MTCX on existing PCBs?

A: Yes. Both components use identical 20-TSSOP packaging with matching pinout and electrical specifications. No PCB modifications are required for physical or electrical substitution.

Q: What is the primary difference between these two parts?

A: The 74ACT1284MTCX is obsolete, while the SN74ACT1284PWR is an active product from Texas Instruments. The operating temperature range differs: the onsemi part supports -40°C to 85°C, while the Texas Instruments part supports 0°C to 70°C.

Q: Are there any compliance differences between the two parts?

A: Both parts are REACH Unaffected. The SN74ACT1284PWR additionally carries RoHS3 Compliance certification, which may be required for certain applications or regulatory environments.

Q: What should I verify before implementing the SN74ACT1284PWR as a substitute?

A: Confirm that the operating temperature range of 0°C to 70°C meets your application requirements. If your system operates outside this range, alternative solutions must be evaluated.

Q: Are both parts available in Tape & Reel packaging?

A: The SN74ACT1284PWR is supplied in Tape & Reel (TR) packaging. Packaging format availability for the 74ACT1284MTCX should be confirmed with your component supplier.