74LVC245APW,112 Equivalent & Substitute Parts

Part Overview

The 74LVC245APW,112 is a non-inverting transceiver logic IC manufactured by Nexperia USA Inc., designed for 8-bit bidirectional data transfer with 3-state output capability. This component operates across a supply voltage range of 1.2V to 3.6V and is housed in a 20-TSSOP package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	74LVC245APW,112
Manufacturer	Nexperia USA Inc.
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	1.2V ~ 3.6V
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	20-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the 74LVC245APW,112 is determined by the following critical parameters:

Core Functional Parameters:

Logic type: Non-inverting transceiver
Configuration: 1 element, 8 bits per element
Output architecture: 3-state
Output current capability: 24mA (high and low)
Package type: 20-TSSOP form factor

Electrical Operating Range:

Supply voltage compatibility: Minimum 1.2V to 3.6V
Operating temperature range: -40°C to 125°C

Compliance & Environmental:

RoHS3 compliance
MSL rating: 1 (Unlimited)

Substitute parts are grouped into two categories based on voltage supply range compatibility:

Category A - Full Voltage Range (1.2V ~ 3.6V): Parts maintaining the original 1.2V minimum supply specification, ensuring compatibility with low-voltage applications.

Category B - Restricted Voltage Range (2V ~ 3.6V or 2V ~ 5.5V): Parts with higher minimum supply voltage or extended maximum voltage, suitable for applications operating within their specified ranges but not for designs requiring 1.2V operation.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Bits/Element	Output Type	Current (mA)	Supply Voltage	Temp Range (°C)	Package	Status
74LVC245APW,112	Nexperia USA Inc.	Non-Inverting	8	3-State	24/24	1.2V ~ 3.6V	-40 ~ 125	20-TSSOP	Obsolete
74LVC245APW,118	NXP Semiconductors	Non-Inverting	8	3-State	24/24	1.2V ~ 3.6V	-40 ~ 125	20-TSSOP	Active
SN74LVC245APW	Texas Instruments	Non-Inverting	8	3-State	24/24	1.65V ~ 3.6V	-40 ~ 125	20-TSSOP	Active
SN74LVC245AIPWREP	Texas Instruments	Non-Inverting	8	3-State	24/24	1.65V ~ 3.6V	-40 ~ 85	20-TSSOP	Active
SN74LVC245ADGVR	Texas Instruments	Non-Inverting	8	3-State	24/24	1.65V ~ 3.6V	-40 ~ 125	20-TFSOP	Active
SN74LVC245ADB	Texas Instruments	Non-Inverting	8	3-State	24/24	1.65V ~ 3.6V	-40 ~ 125	20-SSOP	Active
74LCX245MTC	onsemi	Non-Inverting	8	3-State	24/24	2V ~ 3.6V	-40 ~ 85	20-TSSOP	Active
74LCX245MTCX	onsemi	Non-Inverting	8	3-State	24/24	2V ~ 3.6V	-40 ~ 85	20-TSSOP	Active
MC74LCX245DTG	onsemi	Non-Inverting	8	3-State	24/24	2V ~ 5.5V	-55 ~ 125	20-TSSOP	Active
MC74LCX245DTR2G	onsemi	Non-Inverting	8	3-State	24/24	2V ~ 5.5V	-55 ~ 125	20-TSSOP	Active
NLV74LCX245DTR2G	onsemi	Non-Inverting	8	3-State	24/24	2V ~ 5.5V	-55 ~ 125	20-TSSOP	Obsolete

Engineering Selection Recommendations

Primary Recommendation - Direct Replacement:

The 74LVC245APW,118 from NXP Semiconductors is the most direct equivalent. Both parts share identical electrical specifications, package type, and operating parameters. The primary distinction is product status: the original part is obsolete while the NXP variant remains in active production. This substitution requires no design modifications.

Secondary Recommendations - Active Production Alternatives:

For applications where the 1.2V minimum supply voltage is not required, the Texas Instruments SN74LVC245APW and SN74LVC245AIPWREP offer active production status with compatible 20-TSSOP packaging. The SN74LVC245APW maintains the full -40°C to 125°C temperature range, while the SN74LVC245AIPWREP operates to 85°C maximum. Both specify 1.65V minimum supply voltage, which is acceptable for most 3.3V and lower voltage logic applications.

Package Variant Consideration:

The SN74LVC245ADGVR from Texas Instruments provides equivalent functionality in a 20-TFSOP package (alternative thin form factor). The SN74LVC245ADB uses a 20-SSOP package. These variants are suitable when PCB layout constraints require different package geometries.

Extended Voltage Range Option:

The onsemi MC74LCX245DTR2G and MC74LCX245DTG support extended supply voltage to 5.5V and wider temperature range (-55°C to 125°C), providing additional design margin for applications requiring broader operating conditions. These parts are suitable for designs not constrained to the original 1.2V minimum specification.

Compliance Status:

All recommended substitutes maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring environmental and reliability standards alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can the 74LVC245APW,118 be used as a direct replacement for the obsolete 74LVC245APW,112?

A: Yes. Both parts are electrically and mechanically identical. The 74LVC245APW,118 is manufactured by NXP Semiconductors and maintains active production status. No design changes are required.

Q: What is the key difference between the NXP 74LVC245APW,118 and Texas Instruments SN74LVC245APW?

A: The primary difference is minimum supply voltage specification. The NXP part operates from 1.2V minimum, while the TI part specifies 1.65V minimum. Both support 3.6V maximum and are otherwise electrically equivalent. Selection depends on whether your application requires operation below 1.65V.

Q: Are the onsemi 74LCX245 series parts compatible substitutes?

A: The onsemi 74LCX245 series (74LCX245MTC, 74LCX245MTCX, MC74LCX245DTG, MC74LCX245DTR2G) are functionally compatible but have restricted minimum supply voltage of 2V instead of 1.2V. They are suitable for applications operating at 2V or higher. The MC74LCX245 variants support extended voltage to 5.5V and wider temperature ranges.

Q: What packaging options are available for 74LVC245 transceiver logic?

A: The primary package is 20-TSSOP (0.173" width, 4.40mm). Alternative packages include 20-TFSOP (thin form factor, used by SN74LVC245ADGVR) and 20-SSOP (0.209" width, 5.30mm, used by SN74LVC245ADB). Package selection depends on PCB layout requirements and available footprint space.

Q: Does the operating temperature range affect substitution compatibility?

A: Yes. The original 74LVC245APW,112 operates from -40°C to 125°C. Most active substitutes maintain this range. The SN74LVC245AIPWREP and onsemi 74LCX245MTC variants operate to 85°C maximum, which is acceptable for applications not requiring full -40°C to 125°C coverage. Verify your application's temperature requirements before selection.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), matching the environmental and reliability standards of the original component.

Q: What is the significance of the part number suffix (APW,112 vs APW,118)?

A: The suffix indicates manufacturing date code or production batch designation. The electrical and functional specifications remain identical between these variants. The suffix does not affect substitution compatibility.

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