74ALVCH245WMX Equivalent & Substitute Parts

Part Overview

The 74ALVCH245WMX 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, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain identical functional specifications while offering current product status and improved availability.

Key Parameters

Parameter	Specification
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 Part Grouping Explanation

Substitution eligibility for the 74ALVCH245WMX is determined by strict equivalence across the following parameters: logic type (transceiver, non-inverting), number of elements (1), bits per element (8), output type (3-state), output current specifications (24mA high and low), supply voltage range (1.65V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and surface mount packaging. Package case dimensions and supplier device package designations may vary within the 20-SOIC family while maintaining functional compatibility. All identified substitutes meet these core electrical and mechanical criteria.

Parameter Comparison

Part Number	Manufacturer	Series	Product Status	Package / Case	Voltage - Supply	Current Output (mA)	Operating Temp (°C)	RoHS Status	Inventory (Pcs)
74ALVCH245WMX	onsemi	74ALVCH	Obsolete	20-SOIC (0.295", 7.50mm)	1.65V ~ 3.6V	24/24	-40 ~ 85	Not specified	994
SN74ALVC245DW	Texas Instruments	74ALVC	Active	20-SOIC (0.295", 7.50mm)	1.65V ~ 3.6V	24/24	-40 ~ 85	ROHS3 Compliant	1555
SN74ALVC245NSR	Texas Instruments	74ALVC	Active	20-SOIC (0.209", 5.30mm)	1.65V ~ 3.6V	24/24	-40 ~ 85	ROHS3 Compliant	2530
SN74ALVCH245DW	Texas Instruments	74ALVCH	Active	20-SOIC (0.295", 7.50mm)	1.65V ~ 3.6V	24/24	-40 ~ 85	ROHS3 Compliant	1285
74ALVC245D,118	NXP USA Inc.	74ALVC	Active	20-SOIC (0.295", 7.50mm)	1.65V ~ 3.6V	24/24	-40 ~ 85	Not specified	9086
SN74ALVC245DWR	Texas Instruments	74ALVC	Active	20-SOIC (0.295", 7.50mm)	1.65V ~ 3.6V	24/24	-40 ~ 85	ROHS3 Compliant	2200
SN74ALVCH245DWR	Texas Instruments	74ALVCH	Active	20-SOIC (0.295", 7.50mm)	1.65V ~ 3.6V	24/24	-40 ~ 85	ROHS3 Compliant	2871

Engineering Selection Recommendations

All identified substitute parts maintain full electrical and functional equivalence to the 74ALVCH245WMX across core parameters. Texas Instruments SN74ALVCH245DW and SN74ALVCH245DWR offer direct series compatibility with identical package dimensions (20-SOIC 0.295" width) and active product status. Texas Instruments SN74ALVC245DW and SN74ALVC245DWR provide parametric equivalence with active status and ROHS3 compliance. NXP 74ALVC245D,118 delivers the highest inventory availability (9086 pcs) with parametric equivalence. SN74ALVC245NSR features a narrower package width (0.209" vs 0.295") suitable for space-constrained applications while maintaining all electrical specifications. All active substitutes carry ROHS3 compliance certification where specified, supporting environmental regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can SN74ALVC245DW directly replace 74ALVCH245WMX in existing designs? A: Yes. Both parts share identical electrical specifications (1.65V ~ 3.6V supply, 24mA output current, -40°C ~ 85°C operating range) and package dimensions (20-SOIC 0.295" width). The primary difference is product status: the original is obsolete while the substitute is active.

Q: What is the difference between 74ALVC and 74ALVCH series substitutes? A: Both series meet the electrical requirements of the original part. The 74ALVCH series maintains closer naming alignment with the original onsemi part. The 74ALVC series offers broader manufacturer availability and higher inventory levels.

Q: Does SN74ALVC245NSR with narrower package width (0.209") affect PCB layout compatibility? A: The narrower width (0.209" vs 0.295") reduces footprint size but maintains the same pin count and electrical specifications. PCB layout compatibility depends on specific footprint design; verify pad spacing and component placement clearances for your application.

Q: Are all substitute parts ROHS3 compliant? A: Texas Instruments parts (SN74ALVC245DW, SN74ALVC245NSR, SN74ALVC245DWR, SN74ALVCH245DW, SN74ALVCH245DWR) carry ROHS3 compliance certification. NXP 74ALVC245D,118 does not specify RoHS status in available documentation.

Q: Which substitute offers the best availability? A: NXP 74ALVC245D,118 provides the highest inventory level at 9086 pcs. Texas Instruments SN74ALVCH245DWR offers 2871 pcs with active status and ROHS3 compliance.

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