74HCT368D,652 Equivalent & Substitute Parts

Part Overview

The 74HCT368D,652 is a Buffer, Inverting logic IC manufactured by Nexperia USA Inc. in a 16-SOIC surface mount package. This component features 2 elements with 2 and 4 (Hex) bits per element, 3-state output capability, and operates across a 4.5V to 5.5V supply voltage range. The part is currently classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Logic Type	Buffer, Inverting
Number of Elements	2
Number of Bits per Element	2, 4 (Hex)
Output Type	3-State
Current - Output High, Low	6mA, 6mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74HCT368D,652 is determined by strict equivalence across the following critical parameters:

Logic Type: Buffer, Inverting
Number of Elements: 2
Number of Bits per Element: 2, 4 (Hex)
Output Type: 3-State
Voltage - Supply: 4.5V ~ 5.5V
Package / Case: 16-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount

Substitute parts must maintain identical functional architecture and pinout compatibility. Variations in output current capability (4mA vs. 6mA), operating temperature range, and product status are noted but do not preclude substitution when electrical load requirements are satisfied.

Parameter Comparison

Parameter	74HCT368D,652 (Nexperia)	CD74HCT368M (TI)	CD74HCT368M96 (TI)	CD74HCT368MT (TI)	74HCT368D,652 (NXP)
Manufacturer	Nexperia USA Inc.	Texas Instruments	Texas Instruments	Texas Instruments	NXP Semiconductors
Logic Type	Buffer, Inverting	Buffer, Inverting	Buffer, Inverting	Buffer, Inverting	Buffer, Inverting
Number of Elements	2	2	2	2	2
Number of Bits per Element	2, 4 (Hex)	2, 4 (Hex)	2, 4 (Hex)	2, 4 (Hex)	2, 4 (Hex)
Output Type	3-State	3-State	3-State	3-State	3-State
Current - Output High, Low	6mA, 6mA	4mA, 4mA	4mA, 4mA	4mA, 4mA	6mA, 6mA
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 125°C
Package / Case	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Last Time Buy	Active	Last Time Buy	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For designs currently using the 74HCT368D,652 (Nexperia, Obsolete status), the following substitution hierarchy is established:

Primary Recommendation: CD74HCT368M96 (Texas Instruments) - Active product status ensures long-term availability and supply chain stability. Functionally equivalent with identical pinout and logic architecture. Output current specification of 4mA is suitable for standard TTL/CMOS load conditions.

Secondary Recommendation: 74HCT368D,652 (NXP Semiconductors) - Direct parametric equivalent from alternative manufacturer with Active status. Maintains 6mA output current matching original specification. Identical operating temperature range (-40°C ~ 125°C).

Tertiary Options: CD74HCT368M (Texas Instruments, Last Time Buy) and CD74HCT368MT (Texas Instruments, Last Time Buy) provide functional equivalence but with extended operating temperature range (-55°C ~ 125°C) and reduced output current (4mA). Suitable for applications not requiring the full 6mA output drive capability.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can CD74HCT368M (4mA output) replace the original 74HCT368D,652 (6mA output)?

A: Yes, provided the circuit load does not exceed 4mA per output. The 74HCT logic family maintains consistent voltage levels across manufacturers. Verify load current requirements before substitution.

Q: What is the difference between CD74HCT368M and CD74HCT368M96?

A: Both are functionally identical 74HCT368 buffer inverters from Texas Instruments. CD74HCT368M is supplied in Tube packaging; CD74HCT368M96 is supplied in Tape & Reel (TR) format. CD74HCT368M96 is currently Active; CD74HCT368M is Last Time Buy status.

Q: Are all substitute parts pin-compatible with the original 74HCT368D,652?

A: Yes. All listed substitutes use the 16-SOIC package with identical pinout. Direct PCB replacement is possible without layout modification.

Q: Does the extended operating temperature range of Texas Instruments parts (-55°C to 125°C vs. -40°C to 125°C) affect substitution?

A: No. Extended temperature range is a superset of the original specification and does not create compatibility issues. It provides additional margin for extreme environment applications.

Q: Which substitute offers the best long-term availability?

A: CD74HCT368M96 (Texas Instruments) carries Active product status, indicating ongoing production and supply commitment. This is the recommended choice for new designs and long-term production runs.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, meeting standard industrial and commercial manufacturing requirements.

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