74AC245MTCX Equivalent & Substitute Parts

Part Overview

The 74AC245MTCX is a non-inverting transceiver logic integrated circuit manufactured by onsemi, designed for 8-bit bidirectional data transfer with 3-state output capability. This component operates across a 2V to 6V supply voltage range and is housed in a 20-TSSOP surface mount package. The part is currently in active production status. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and functional equivalence within the 74AC logic family.

Key Parameters

Parameter	Specification
Logic Type	Transceiver, Non-Inverting
Number of Elements	1
Number of Bits per Element	8
Output Type	3-State
Current - Output High, Low	24mA, 24mA
Voltage - Supply	2V ~ 6V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 74AC245MTCX are qualified based on the following criteria:

Electrical Equivalence: All substitute parts maintain identical logic type (Transceiver, Non-Inverting), element count (1), bit width (8 bits), output configuration (3-State), output current ratings (24mA high and low), and supply voltage range (2V ~ 6V).

Thermal Compatibility: All substitutes operate within the same temperature range (-40°C ~ 85°C).

Package Compatibility: All substitutes use the 20-TSSOP surface mount package with identical physical dimensions (0.173", 4.40mm Width).

Compliance Alignment: All substitutes maintain ROHS3 compliance and MSL Level 1 rating.

Series Consistency: All parts belong to the 74AC logic family with base product number 74AC245.

Parameter Comparison

Parameter	74AC245MTCX (onsemi)	MC74AC245DTG (onsemi)	SN74AC245PW (TI)	SN74AC245PWR (TI)
Manufacturer	onsemi	onsemi	Texas Instruments	Texas Instruments
Logic Type	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting
Number of Elements	1	1	1	1
Number of Bits per Element	8	8	8	8
Output Type	3-State	3-State	3-State	3-State
Current - Output High, Low	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA
Voltage - Supply	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	20-TSSOP	20-TSSOP	20-TSSOP	20-TSSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Discontinued at DiGi Electronics	Active
Packaging Format	Cut Tape (CT) & Digi-Reel®	Tube	Tube	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

Primary Selection: The 74AC245MTCX and SN74AC245PWR are both in active production status and available in Cut Tape (CT) & Digi-Reel® packaging format, making them suitable for high-volume manufacturing and automated assembly processes.

Secondary Selection: The MC74AC245DTG (onsemi) maintains active product status and full electrical equivalence but is supplied in Tube packaging, which may require different handling procedures in production environments.

Discontinued Status Consideration: The SN74AC245PW (Texas Instruments) is discontinued at DiGi Electronics and should be avoided for new designs requiring long-term component availability.

All substitute parts maintain identical ROHS3 compliance and MSL Level 1 certification, ensuring environmental and regulatory compatibility with the primary part.

Frequently Asked Questions (FAQ)

Q: Can the MC74AC245DTG replace the 74AC245MTCX in production?

A: Yes. Both parts are electrically identical and use the same 20-TSSOP package. The difference is packaging format: MC74AC245DTG is supplied in Tube format while 74AC245MTCX is supplied in Cut Tape (CT) & Digi-Reel® format. Tube packaging may require different automated handling equipment.

Q: What is the difference between the onsemi and Texas Instruments versions?

A: The 74AC245MTCX (onsemi) and SN74AC245PWR (Texas Instruments) are functionally and electrically identical. Both operate at 2V ~ 6V, deliver 24mA output current, and use the 20-TSSOP package. Selection depends on supplier availability and procurement preferences.

Q: Is the SN74AC245PW suitable for new designs?

A: No. The SN74AC245PW is discontinued at DiGi Electronics. For new designs, use the 74AC245MTCX, MC74AC245DTG, or SN74AC245PWR, all of which maintain active production status.

Q: Do all substitute parts have the same thermal operating range?

A: Yes. All substitute parts operate from -40°C to 85°C (TA), matching the primary part specification.

Q: Are there packaging considerations when switching between substitutes?

A: Yes. The 74AC245MTCX and SN74AC245PWR use Cut Tape (CT) & Digi-Reel® packaging suitable for automated pick-and-place assembly. The MC74AC245DTG uses Tube packaging, which requires different handling in production environments. Verify your assembly equipment compatibility before switching.

Q: Do all parts meet the same compliance standards?

A: Yes. All substitute parts are ROHS3 compliant with MSL Level 1 rating, matching the primary part's environmental and regulatory certifications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message