CD74HC243MT Equivalent & Substitute Parts

Part Overview

The CD74HC243MT is a transceiver integrated circuit featuring non-inverting logic with 1 element and 4 bits per element, designed for 3-state output applications. Manufactured by Texas Instruments in the 74HC series, this component operates across a 2V to 6V supply voltage range and is housed in a 14-SOIC surface mount package.

The CD74HC243MT is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts ensures design continuity and maintains system functionality for applications requiring this transceiver configuration.

Substiute Parts

CD74HC243MT

Texas InstrumentsIn Stock: 1119CD74HC243MT Datasheet

Current PartRFQ

CD74HC243M96

Texas InstrumentsIn Stock: 17928CD74HC243M96 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD74HC243MT are identified based on strict parametric equivalence. The following criteria determine substitution eligibility:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 4
• Output Type: 3-State
• Voltage - Supply: 2V ~ 6V
• Current - Output High, Low: 7.8mA, 7.8mA
• Operating Temperature: -55°C ~ 125°C (TA)
• Package / Case: 14-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

The CD74HC243M96 meets all parametric requirements and serves as a direct equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The CD74HC243M96 is the parametric equivalent substitute for the discontinued CD74HC243MT. Both components share identical electrical specifications, package configuration, and compliance certifications. The CD74HC243M96 maintains active product status with current inventory availability, making it suitable for direct replacement in applications requiring the CD74HC243MT.

Both parts comply with ROHS3 standards and carry MSL Level 1 (Unlimited) moisture sensitivity classification, ensuring compatibility with standard manufacturing and storage practices.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC243M96 directly replace the CD74HC243MT?

A: Yes. The CD74HC243M96 is a parametric equivalent with identical logic type, element configuration, bit width, output type, supply voltage range, output current specifications, operating temperature range, package type, and mounting configuration.

Q: Are there any differences in compliance or certification between these parts?

A: No. Both the CD74HC243MT and CD74HC243M96 are ROHS3 compliant and carry identical MSL Level 1 (Unlimited) ratings.

Q: What is the primary difference between these two part numbers?

A: The CD74HC243M96 is currently active in production with available inventory, while the CD74HC243MT is discontinued at DiGi Electronics. The electrical and mechanical specifications are identical.

Q: Is the 14-SOIC package compatible with existing PCB layouts designed for the CD74HC243MT?

A: Yes. Both parts use the identical 14-SOIC (0.154", 3.90mm Width) surface mount package, ensuring footprint compatibility with existing designs.

Q: Are there any temperature or voltage operating range differences?

A: No. Both parts operate identically across the 2V to 6V supply voltage range and -55°C to 125°C temperature range.