74VCX08MTC Equivalent & Substitute Parts

Part Overview

The 74VCX08MTC is a 4-channel 2-input AND gate logic IC manufactured by onsemi in 14-TSSOP surface mount packaging. This part operates across a 1.2V to 3.6V supply voltage range with a maximum propagation delay of 2.8ns at 3.3V with 30pF load. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and production requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	74VCX08MTC
Manufacturer	onsemi
Logic Type	AND Gate
Number of Circuits	4
Number of Inputs	2
Package Type	14-TSSOP
Voltage Supply Range	1.2V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
Product Status	Obsolete
RoHS Compliance	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the 74VCX08MTC is determined by the following critical parameters:

Logic Function: All substitutes must implement 4-channel 2-input AND gate logic
Package Type: Primary substitutes maintain 14-TSSOP packaging for direct board-level compatibility
Voltage Supply Range: Substitutes must support the operating voltage envelope of the original part
Output Drive Capability: Current output specifications (24mA high/low) must be maintained
Operating Temperature Range: All substitutes cover -40°C to 85°C minimum
Compliance Standards: RoHS3 compliance and REACH unaffected status required

The 74ALVC08 series from Texas Instruments and NXP Semiconductors provides direct functional equivalence with enhanced specifications in most parameters while maintaining backward compatibility with the 74VCX08MTC footprint and pinout.

Parameter Comparison

Parameter	74VCX08MTC (Main)	SN74ALVC08IPWRQ1	SN74ALVC08IPWRG4Q1	SN74ALVC08DGVR	SN74ALVC08PWR	74ALVC08PW,118
Manufacturer	onsemi	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	NXP Semiconductors
Logic Type	AND Gate	AND Gate	AND Gate	AND Gate	AND Gate	AND Gate
Number of Circuits	4	4	4	4	4	4
Number of Inputs	2	2	2	2	2	2
Package Type	14-TSSOP	14-TSSOP	14-TSSOP	14-TVSOP	14-TSSOP	14-TSSOP
Voltage Supply Range	1.2V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V
Quiescent Current (Max)	20 µA	10 µA	10 µA	10 µA	10 µA	Not specified
Output Current High/Low	24mA / 24mA	24mA / 24mA	24mA / 24mA	24mA / 24mA	24mA / 24mA	Not specified
Input Logic Level Low	0.7V ~ 0.8V	0.7V ~ 0.8V	0.7V ~ 0.8V	0.7V ~ 0.8V	0.7V ~ 0.8V	Not specified
Input Logic Level High	1.6V ~ 2V	1.7V ~ 2V	1.7V ~ 2V	1.7V ~ 2V	1.7V ~ 2V	Not specified
Max Propagation Delay @ 3.3V	2.8ns @ 30pF	2.9ns @ 50pF	2.9ns @ 50pF	2.9ns @ 50pF	2.9ns @ 50pF	Not specified
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	Not specified
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Compliance	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade	Not specified	AEC-Q100	AEC-Q100	Not specified	Not specified	Not specified

Engineering Selection Recommendations

Primary Substitutes (Direct Replacement)

SN74ALVC08IPWRQ1 and SN74ALVC08IPWRG4Q1 from Texas Instruments are the preferred substitutes for the 74VCX08MTC. Both parts maintain identical 14-TSSOP packaging, support the full -40°C to 85°C operating temperature range, and provide equivalent AND gate functionality. The SN74ALVC08IPWRG4Q1 carries AEC-Q100 automotive qualification, making it suitable for automotive applications. Both parts are currently in active production status with robust inventory availability.

Secondary Substitutes (Package Variant)

SN74ALVC08DGVR provides functional equivalence in a 14-TVSOP package variant. While the package footprint differs slightly from the original 14-TSSOP, the electrical specifications and pin configuration remain compatible. This option is suitable for designs where package footprint variation is acceptable.

General Market Alternatives

SN74ALVC08PWR (Cut Tape & Digi-Reel packaging) and 74ALVC08PW,118 (NXP Semiconductors, Bulk packaging) offer equivalent logic functionality with active product status. These parts support the same voltage supply range and operating temperature specifications as the primary substitutes.

All recommended substitutes demonstrate improved quiescent current performance (10 µA maximum versus 20 µA for the original part) while maintaining or exceeding propagation delay specifications.

Frequently Asked Questions (FAQ)

Q: Can SN74ALVC08IPWRQ1 directly replace 74VCX08MTC on existing PCBs?

A: Yes. Both parts use identical 14-TSSOP packaging with matching pinout and footprint. No PCB modifications are required for direct substitution.

Q: What is the key difference between SN74ALVC08IPWRQ1 and SN74ALVC08IPWRG4Q1?

A: Both parts are electrically identical with matching specifications. SN74ALVC08IPWRG4Q1 carries AEC-Q100 automotive qualification, making it the appropriate choice for automotive applications. The packaging and tape & reel format are identical.

Q: Is the 74ALVC08PW,118 from NXP Semiconductors a suitable substitute?

A: The 74ALVC08PW,118 provides equivalent AND gate logic functionality in 14-TSSOP packaging. However, detailed electrical specifications for this part are not fully provided in the comparison data. Verification against specific design requirements is recommended before selection.

Q: Why does SN74ALVC08DGVR use 14-TVSOP packaging instead of 14-TSSOP?

A: The 14-TVSOP package is a variant of the TSSOP family with slightly different physical dimensions. While electrically compatible, PCB footprint differences exist. This part is suitable only if the PCB design accommodates the 14-TVSOP footprint.

Q: What is the minimum voltage supply requirement for the substitute parts?

A: The 74ALVC08 series substitutes operate from 1.65V minimum supply voltage, compared to 1.2V for the original 74VCX08MTC. For applications requiring operation below 1.65V, the original part specifications must be maintained or alternative logic families evaluated.

Q: Are all recommended substitutes RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification and REACH unaffected status, matching the environmental compliance profile of the original 74VCX08MTC.

Q: Which substitute offers the best inventory availability?

A: NXP Semiconductors' 74ALVC08PW,118 shows the highest inventory level at 60,392 pieces. Texas Instruments' SN74ALVC08IPWRQ1 provides 5,400 pieces with active production status and AEC-Q100 qualification.

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