74ALVCH245WM Equivalent & Substitute Parts

Part Overview

The 74ALVCH245WM is a non-inverting transceiver logic IC manufactured by onsemi, designed for 8-bit data bus applications with 3-state output capability. Operating across a supply voltage range of 1.65V to 3.6V, this component is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for new production runs and system updates.

Key Parameters

Parameter	Value
Manufacturer Part Number	74ALVCH245WM
Manufacturer	onsemi
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
Package / Case	20-SOIC (0.295", 7.50mm Width)
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74ALVCH245WM is determined by 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

Substitute parts are grouped into two categories:

Direct Substitutes (Same Package): Parts maintaining the 20-SOIC (0.295", 7.50mm Width) package configuration from active manufacturers.

Parametric Equivalents (Alternative Packages): Parts with identical electrical specifications but different package types (20-SO, 20-TSSOP) or packaging formats (Tube vs. Tape & Reel).

Parameter Comparison

Part Number	Manufacturer	Series	Logic Type	Bits per Element	Output Type	Current (mA)	Voltage Supply	Temp Range	Package	Product Status
74ALVCH245WM	onsemi	74ALVCH	Transceiver, Non-Inverting	8	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-SOIC (0.295", 7.50mm)	Obsolete
74ALVC245D,118	NXP USA Inc.	74ALVC	Transceiver, Non-Inverting	8	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-SOIC (0.295", 7.50mm)	Active
SN74ALVC245DWR	Texas Instruments	74ALVC	Transceiver, Non-Inverting	8	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-SOIC (0.295", 7.50mm)	Active
SN74ALVC245NSR	Texas Instruments	74ALVC	Transceiver, Non-Inverting	8	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-SOIC (0.209", 5.30mm)	Active
SN74ALVCH245DWR	Texas Instruments	74ALVCH	Transceiver, Non-Inverting	8	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-SOIC (0.295", 7.50mm)	Active
SN74ALVCH245PWR	Texas Instruments	74ALVCH	Transceiver, Non-Inverting	8	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP (0.173", 4.40mm)	Active
SN74ALVC245DW	Texas Instruments	74ALVC	Transceiver, Non-Inverting	8	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-SOIC (0.295", 7.50mm)	Active
SN74ALVCH245DW	Texas Instruments	74ALVCH	Transceiver, Non-Inverting	8	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-SOIC (0.295", 7.50mm)	Active

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement):

SN74ALVCH245DWR and SN74ALVCH245DW from Texas Instruments maintain identical package geometry (20-SOIC, 0.295", 7.50mm Width) and series designation (74ALVCH) as the original 74ALVCH245WM. Both parts are active products with RoHS3 compliance and unlimited moisture sensitivity rating, ensuring long-term availability and regulatory compliance.

Secondary Substitutes (Same Electrical Specifications, Different Package):

SN74ALVC245DWR and SN74ALVC245DW from Texas Instruments provide identical electrical performance within the same 20-SOIC package footprint. The 74ALVC series represents an earlier generation with equivalent functionality. SN74ALVC245NSR offers the same electrical specifications in a narrower 20-SOIC package (0.209", 5.30mm Width), suitable for space-constrained layouts.

Alternative Package Option:

SN74ALVCH245PWR provides full parametric equivalence in a 20-TSSOP package (0.173", 4.40mm Width), enabling designs requiring reduced board space. This option requires PCB layout modification but maintains electrical compatibility.

NXP Alternative:

74ALVC245D,118 from NXP USA Inc. delivers equivalent electrical performance in 20-SOIC packaging with active product status, offering supply chain diversification.

All substitute parts maintain the specified operating temperature range (-40°C ~ 85°C), supply voltage window (1.65V ~ 3.6V), and output current specifications (24mA high and low).

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74ALVCH245WM with SN74ALVCH245DWR?

A: Yes. Both parts share identical electrical specifications, operating parameters, and 20-SOIC package dimensions (0.295", 7.50mm Width). No circuit modifications are required. SN74ALVCH245DWR is supplied in Tape & Reel format, while the original was in bulk packaging.

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

A: Both series meet the specified electrical parameters for this application. The 74ALVCH series is the newer generation. Functionally, they are interchangeable for this 8-bit non-inverting transceiver application when all electrical specifications match.

Q: Can I use SN74ALVCH245PWR in place of 74ALVCH245WM?

A: Electrically, yes. However, SN74ALVCH245PWR uses a 20-TSSOP package (0.173", 4.40mm Width) instead of 20-SOIC (0.295", 7.50mm Width). PCB layout and footprint modifications are required. Pin configuration remains compatible.

Q: Does packaging format (Tube vs. Tape & Reel) affect component functionality?

A: No. Packaging format affects only handling, storage, and assembly processes. Electrical performance and reliability are identical. Tube packaging is suitable for manual assembly; Tape & Reel is optimized for automated pick-and-place equipment.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed (Texas Instruments and NXP) carry RoHS3 compliance certification. The original 74ALVCH245WM does not specify RoHS status due to its obsolete classification.

Q: What is the moisture sensitivity level (MSL) for substitute parts?

A: All substitute parts maintain MSL 1 (Unlimited), matching the original specification. This indicates no moisture-related storage restrictions.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message