74ALVCH245MTC Equivalent & Substitute Parts

Part Overview

The 74ALVCH245MTC is a non-inverting transceiver logic IC manufactured by onsemi, designed for 8-bit bidirectional data transfer with 3-state output capability. Operating across a 1.65V to 3.6V supply voltage range, this component is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to ensure design continuity and long-term supply chain reliability.

Key Parameters

Parameter	Value
Manufacturer Part Number	74ALVCH245MTC
Manufacturer	onsemi
Series	74ALVCH
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	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 74ALVCH245MTC 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
Current - Output High, Low: 24mA, 24mA
Voltage - Supply: 1.65V ~ 3.6V
Operating Temperature: -40°C ~ 85°C (TA)
Mounting Type: Surface Mount
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories:

Direct Package Substitutes (20-TSSOP): Parts maintaining identical package specifications to the original 74ALVCH245MTC, ensuring pin-for-pin compatibility without PCB layout modifications.

Package Variant Substitutes (20-TVSOP/20-TFSOP): Parts with equivalent electrical specifications but different package designations (20-TVSOP or 20-TFSOP), which maintain the same 0.173" width and 4.40mm dimensions but may require PCB footprint verification.

Parameter Comparison

Part Number	Manufacturer	Series	Package / Case	Voltage - Supply	Current - Output (High, Low)	Operating Temperature	Product Status	RoHS Status	Inventory (Pcs)
74ALVCH245MTC	onsemi	74ALVCH	20-TSSOP	1.65V ~ 3.6V	24mA, 24mA	-40°C ~ 85°C	Obsolete	REACH Unaffected	747
74ALVC245PW,118	Nexperia USA Inc.	74ALVC	20-TSSOP	1.65V ~ 3.6V	24mA, 24mA	-40°C ~ 85°C	Active	ROHS3 Compliant	1900
SN74ALVC245DGVR	Texas Instruments	74ALVC	20-TFSOP	1.65V ~ 3.6V	24mA, 24mA	-40°C ~ 85°C	Active	ROHS3 Compliant	2000
SN74ALVC245PWR	Texas Instruments	74ALVC	20-TSSOP	1.65V ~ 3.6V	24mA, 24mA	-40°C ~ 85°C	Active	ROHS3 Compliant	8652
SN74ALVCH245DGVR	Texas Instruments	74ALVCH	20-TFSOP	1.65V ~ 3.6V	24mA, 24mA	-40°C ~ 85°C	Active	ROHS3 Compliant	2764
SN74ALVCH245PWR	Texas Instruments	74ALVCH	20-TSSOP	1.65V ~ 3.6V	24mA, 24mA	-40°C ~ 85°C	Active	ROHS3 Compliant	2200
SN74ALVC245PW	Texas Instruments	74ALVC	20-TSSOP	1.65V ~ 3.6V	24mA, 24mA	-40°C ~ 85°C	Active	ROHS3 Compliant	1644
SN74ALVCH245PW	Texas Instruments	74ALVCH	20-TSSOP	1.65V ~ 3.6V	24mA, 24mA	-40°C ~ 85°C	Active	ROHS3 Compliant	1175

Engineering Selection Recommendations

All listed substitute parts maintain electrical and functional equivalence to the 74ALVCH245MTC across all critical parameters. Selection should prioritize parts with active product status and ROHS3 compliance certification.

For applications requiring identical package footprints (20-TSSOP), direct substitutes include 74ALVC245PW,118 (Nexperia), SN74ALVC245PWR (Texas Instruments), SN74ALVC245PW (Texas Instruments), SN74ALVCH245PWR (Texas Instruments), and SN74ALVCH245PW (Texas Instruments).

For applications where package variant tolerance exists, SN74ALVC245DGVR and SN74ALVCH245DGVR (both Texas Instruments, 20-TFSOP) provide equivalent electrical performance with higher inventory availability.

All substitute parts carry ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with current environmental standards.

Frequently Asked Questions (FAQ)

Q: Can I use a 20-TFSOP package variant as a direct replacement for the 20-TSSOP original?

A: The 20-TFSOP and 20-TSSOP packages maintain identical pitch and width specifications (0.173", 4.40mm). However, PCB footprint verification is required before substitution, as package outline differences may affect placement accuracy.

Q: What is the difference between the 74ALVC and 74ALVCH series?

A: Both series meet identical electrical specifications for this transceiver function. The 74ALVCH series represents the original onsemi design, while 74ALVC represents the equivalent logic family from other manufacturers. All listed parts are functionally interchangeable.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed carry ROHS3 compliance certification. The original 74ALVCH245MTC is marked as REACH Unaffected, and all substitutes maintain this status.

Q: Which substitute offers the best inventory availability?

A: SN74ALVC245PWR (Texas Instruments) provides the highest inventory level at 8652 pieces, with identical 20-TSSOP packaging and active product status.

Q: Do packaging differences affect electrical performance?

A: No. All listed parts maintain identical electrical specifications: 1.65V to 3.6V supply voltage, 24mA output current (high and low), and -40°C to 85°C operating temperature range. Package differences are mechanical only.

Q: What is the significance of the MSL rating?

A: All parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling. This simplifies supply chain management and reduces component preparation requirements.

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