SN74ACT1284PW Equivalent & Substitute Parts

Part Overview

The SN74ACT1284PW is a 7-bit bus interface IEEE STD 1284 translation transceiver manufactured by Texas Instruments in a 20-TSSOP surface mount package. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing system support and component procurement. The part operates within a 4.5V to 5.5V supply voltage range and supports operating temperatures from 0°C to 70°C.

Substiute Parts

SN74ACT1284PW

Texas InstrumentsIn Stock: 732SN74ACT1284PW Datasheet

Current PartRFQ

SN74ACT1284PWR

Texas InstrumentsIn Stock: 5454SN74ACT1284PWR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74ACT1284PW is determined by strict equivalence across the following critical parameters:

• Logic Type: IEEE STD 1284 Translation Transceiver functionality
• Number of Bits: 7-bit configuration
• Supply Voltage: 4.5V ~ 5.5V operating range
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-TSSOP form factor
• Mounting Type: Surface Mount

The SN74ACT1284PWR qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is packaging format: the substitute is supplied in Tape & Reel (TR) configuration versus the original part's standard packaging, and the substitute maintains Active product status.

Parameter Comparison

Engineering Selection Recommendations

The SN74ACT1284PWR is the appropriate substitute for the obsolete SN74ACT1284PW. Both parts maintain identical electrical and mechanical specifications, ensuring functional equivalence in IEEE STD 1284 translation transceiver applications. The substitute part carries Active product status, providing assured long-term availability and supply chain continuity. Both components satisfy ROHS3 compliance and carry equivalent moisture sensitivity ratings, supporting deployment in standard manufacturing and storage environments.

Frequently Asked Questions (FAQ)

Q: Can the SN74ACT1284PWR be used as a direct replacement for the SN74ACT1284PW?

A: Yes. The SN74ACT1284PWR is electrically and mechanically equivalent. Both parts feature identical 7-bit IEEE STD 1284 translation transceiver functionality, 20-TSSOP packaging, and 4.5V to 5.5V supply voltage specifications.

Q: What is the difference between the main part and the substitute?

A: The primary difference is packaging format and product status. The SN74ACT1284PWR is supplied in Tape & Reel (TR) configuration and maintains Active product status, whereas the original SN74ACT1284PW is classified as Obsolete. Electrical and mechanical specifications are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, carry identical Moisture Sensitivity Level ratings (MSL 1), and share equivalent regulatory classifications.

Q: Is the 20-TSSOP package compatible with existing PCB designs?

A: Yes. Both parts use the identical 20-TSSOP package with 0.173" width and 4.40mm dimensions, ensuring direct compatibility with existing surface mount designs.

Q: What is the supply voltage operating range for these parts?

A: Both the SN74ACT1284PW and SN74ACT1284PWR operate within a 4.5V to 5.5V supply voltage range with an operating temperature range of 0°C to 70°C.