CD74HC245M Equivalent & Substitute Parts

Part Overview

The CD74HC245M is a non-inverting transceiver logic integrated circuit manufactured by Texas Instruments, designed for 8-bit data bus applications with 3-state output capability. This device operates across a 2V to 6V supply voltage range and is housed in a 20-SOIC surface mount package. The CD74HC245M is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design requirements and production needs.

Key Parameters

Parameter	Value
Manufacturer Part Number	CD74HC245M
Manufacturer	Texas Instruments
Logic Type	Transceiver, Non-Inverting
Number of Elements	1
Number of Bits per Element	8
Output Type	3-State
Voltage - Supply	2V ~ 6V
Operating Temperature	-55°C ~ 125°C (TA)
Package / Case	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CD74HC245M is determined by strict equivalence across the following critical parameters:

Logic type: Transceiver, Non-Inverting
Number of elements: 1
Number of bits per element: 8
Output type: 3-State
Supply voltage range: 2V ~ 6V
Package / Case: 20-SOIC (0.295", 7.50mm Width)
Base product number: 74HC245
RoHS compliance: ROHS3 Compliant

Substitute parts are grouped into two categories based on product status and availability:

Direct Substitutes (Active Status): Parts that maintain identical electrical and mechanical specifications with active product status.

Alternative Substitutes (Active Status, Parameter Variations): Parts that share the base product number and core functionality but exhibit variations in output current specifications or operating temperature ranges.

Parameter Comparison

Part Number	Manufacturer	Product Status	Current - Output High/Low (mA)	Operating Temperature (TA)	Package	MSL	Packaging Type
CD74HC245M	Texas Instruments	Discontinued	5.2 / 5.2	-55°C ~ 125°C	20-SOIC	1	-
CD74HC245M96	Texas Instruments	Active	5.2 / 5.2	-55°C ~ 125°C	20-SOIC	1	Cut Tape (CT) & Digi-Reel®
74HC245D,653	Nexperia USA Inc.	Active	7.8 / 7.8	-40°C ~ 125°C	20-SOIC	1	Cut Tape (CT) & Digi-Reel®
MC74HC245ADWG	onsemi	Active	7.8 / 7.8	-55°C ~ 125°C	20-SOIC	3	Tube
MC74HC245ADWR2G	onsemi	Active	7.8 / 7.8	-55°C ~ 125°C	20-SOIC	3	Tape & Reel (TR)
MM74HC245AWM	onsemi	Active	7.8 / 7.8	-40°C ~ 85°C	20-SOIC	3	Tube
MM74HC245AWMX	onsemi	Active	7.8 / 7.8	-40°C ~ 85°C	20-SOIC	3	Tape & Reel (TR)

Engineering Selection Recommendations

Primary Substitute: CD74HC245M96 (Texas Instruments) is the direct functional equivalent with identical electrical specifications and operating temperature range. This part maintains the original MSL rating of 1 and is available in active status with standard packaging options.

Secondary Substitutes: The Nexperia 74HC245D,653 and onsemi MC74HC245ADWG and MC74HC245ADWR2G parts are functionally compatible alternatives. These parts share the 20-SOIC package and 2V to 6V supply voltage specification. The onsemi variants (MC74HC245ADWG, MC74HC245ADWR2G) maintain the full -55°C to 125°C operating temperature range of the original part.

Temperature-Constrained Alternatives: The onsemi MM74HC245AWM and MM74HC245AWMX parts operate within a reduced temperature range of -40°C to 85°C. These parts are suitable for applications where the full -55°C to 125°C range is not required.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original CD74HC245M specification.

Frequently Asked Questions (FAQ)

Q: Can CD74HC245M96 be used as a direct replacement for CD74HC245M?

A: Yes. CD74HC245M96 is manufactured by Texas Instruments and maintains identical electrical specifications, operating temperature range (-55°C to 125°C), output current ratings (5.2mA), and 20-SOIC package configuration. The primary difference is packaging format (Cut Tape & Digi-Reel® versus the original format).

Q: What are the differences between Texas Instruments and onsemi substitute options?

A: The Texas Instruments CD74HC245M96 maintains the original 5.2mA output current specification. The onsemi variants (MC74HC245ADWG, MC74HC245ADWR2G, MM74HC245AWM, MM74HC245AWMX) provide higher output current capability at 7.8mA. All parts share the same 20-SOIC package footprint and 2V to 6V supply voltage range.

Q: Are there operating temperature restrictions with substitute parts?

A: The Nexperia 74HC245D,653 operates from -40°C to 125°C, which is narrower than the original -55°C specification at the lower end. The onsemi MM74HC245AWM and MM74HC245AWMX variants operate from -40°C to 85°C, which is further restricted at both temperature extremes. The onsemi MC74HC245ADWG and MC74HC245ADWR2G maintain the full -55°C to 125°C range.

Q: What is the significance of MSL (Moisture Sensitivity Level) differences?

A: The original CD74HC245M carries MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Substitute parts with MSL 3 (168 Hours) require controlled storage and handling conditions. MSL 3 parts must be stored in dry conditions and have a 168-hour floor life after opening the moisture barrier bag.

Q: Are all substitute parts available in the same packaging formats?

A: No. CD74HC245M96 is available in Cut Tape & Digi-Reel® format. The Nexperia 74HC245D,653 is also available in Cut Tape & Digi-Reel® format. onsemi parts are available in either Tube (MC74HC245ADWG, MM74HC245AWM) or Tape & Reel (MC74HC245ADWR2G, MM74HC245AWMX) formats. Select the packaging format that matches your procurement and assembly requirements.

Q: Is the 20-SOIC package identical across all substitute parts?

A: Yes. All substitute parts use the 20-SOIC package with 0.295" width and 7.50mm body width. The package footprint is mechanically and electrically compatible across all listed alternatives.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message