74VCX132MTC Equivalent & Substitute Parts

Part Overview

The 74VCX132MTC is a NAND Gate IC featuring 4 channels with 2 inputs per channel and integrated Schmitt Trigger functionality, packaged in a 14-TSSOP surface mount configuration. Manufactured by onsemi, this component operates across a 1.4V to 3.6V supply voltage range with low quiescent current characteristics. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Logic Type	NAND Gate
Number of Circuits	4
Number of Inputs	2
Features	Schmitt Trigger
Voltage - Supply	1.4V ~ 3.6V
Current - Quiescent (Max)	20 µA
Current - Output High, Low	24mA, 24mA
Max Propagation Delay	3.3ns @ 3.3V, 30pF
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the 74VCX132MTC is determined by the following critical parameters:

Logic Function: NAND Gate with 4 channels and 2 inputs per channel
Output Drive Capability: 24mA high and low output current
Supply Voltage Compatibility: Operating range must accommodate the application voltage
Propagation Delay: Maximum delay specifications for timing-critical applications
Package Type: Surface mount configuration for PCB compatibility
Schmitt Trigger Feature: Hysteresis input characteristics for noise immunity

The MC74AC00DR2G qualifies as a functional substitute based on matching logic configuration (4-channel NAND gate with 2 inputs), identical output drive capability (24mA), and compatible surface mount packaging. However, differences in supply voltage range, quiescent current, propagation delay, and operating temperature must be evaluated against specific application requirements.

Parameter Comparison

Parameter	74VCX132MTC	MC74AC00DR2G
Manufacturer	onsemi	onsemi
Logic Type	NAND Gate	NAND Gate
Number of Circuits	4	4
Number of Inputs	2	2
Voltage - Supply	1.4V ~ 3.6V	2V ~ 6V
Current - Quiescent (Max)	20 µA	4 µA
Current - Output High, Low	24mA, 24mA	24mA, 24mA
Max Propagation Delay	3.3ns @ 3.3V, 30pF	8ns @ 5V, 50pF
Operating Temperature	-40°C ~ 85°C	-55°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount
Supplier Device Package	14-TSSOP	14-SOIC
Product Status	Obsolete	Active

Engineering Selection Recommendations

The MC74AC00DR2G is an active product with ROHS3 compliance, providing supply chain continuity for the obsolete 74VCX132MTC. Both components share identical logic configuration and output drive specifications. Selection between these parts depends on application-specific constraints:

Supply Voltage Consideration: The 74VCX132MTC operates at lower voltages (1.4V minimum), while the MC74AC00DR2G requires minimum 2V supply. Applications operating below 2V cannot use the substitute.

Propagation Delay: The 74VCX132MTC exhibits faster propagation delay (3.3ns) compared to the MC74AC00DR2G (8ns). Time-critical applications must verify timing compatibility.

Quiescent Current: The MC74AC00DR2G draws lower quiescent current (4 µA vs. 20 µA), providing power efficiency advantage in battery-powered applications.

Operating Temperature Range: The MC74AC00DR2G supports extended temperature range (-55°C to 125°C) versus the 74VCX132MTC (-40°C to 85°C), enabling use in wider environmental conditions.

Package Footprint: The 14-SOIC package of the MC74AC00DR2G differs from the 14-TSSOP package of the 74VCX132MTC, requiring PCB layout modification.

Schmitt Trigger Feature: The 74VCX132MTC includes Schmitt Trigger input characteristics; the MC74AC00DR2G does not. Applications requiring hysteresis input protection must account for this functional difference.

Frequently Asked Questions (FAQ)

Q: Can the MC74AC00DR2G directly replace the 74VCX132MTC without circuit modification?

A: Direct replacement requires verification of three factors: (1) supply voltage must be 2V or higher, (2) propagation delay of 8ns must satisfy timing requirements, and (3) PCB layout must accommodate the different 14-SOIC package footprint. The absence of Schmitt Trigger functionality in the substitute must be evaluated for the specific application.

Q: What is the primary reason the 74VCX132MTC is obsolete?

A: The 74VCX132MTC is classified as obsolete by the manufacturer. The MC74AC00DR2G, as an active product, represents the current manufacturing alternative for equivalent NAND gate functionality.

Q: Are there package options available for the MC74AC00DR2G?

A: The provided data specifies the MC74AC00DR2G in 14-SOIC packaging with Tape & Reel distribution. Alternative package configurations may exist but are not included in this reference.

Q: How do the input logic levels differ between these parts?

A: The 74VCX132MTC specifies input logic levels of 0.2V ~ 0.8V (low) and 1.2V ~ 2.2V (high). The MC74AC00DR2G specifies 0.9V ~ 1.65V (low) and 2.1V ~ 3.85V (high). Applications with marginal input signal levels must verify compatibility with the substitute part's thresholds.

Q: What compliance certifications apply to the MC74AC00DR2G?

A: The MC74AC00DR2G is ROHS3 compliant and REACH unaffected. Both parts carry EAR99 export classification and identical HTSUS codes (8542.39.0001).

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