SN74AC245NG4 Equivalent & Substitute Parts

Part Overview

The SN74AC245NG4 is a non-inverting transceiver logic integrated circuit manufactured by Texas Instruments, designed for 8-bit bidirectional data transfer with 3-state output capability. This device operates across a 2V to 6V supply voltage range and is housed in a 20-pin DIP package suitable for through-hole mounting applications.

The SN74AC245NG4 has been discontinued at DiGi Electronics. Locating equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or repair requirements for systems utilizing this transceiver architecture.

Substiute Parts

SN74AC245NG4

Texas InstrumentsIn Stock: 1116SN74AC245NG4 Datasheet

Current PartRFQ

SN74AC245N

Texas InstrumentsIn Stock: 1083SN74AC245N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74AC245NG4 are determined by strict equivalence across the following critical parameters:

• Logic type and function: Non-inverting transceiver architecture
• Bit configuration: 1 element, 8 bits per element
• Output configuration: 3-state output capability
• Electrical performance: 24mA output current (high and low)
• Supply voltage range: 2V ~ 6V operation
• Temperature rating: -40°C ~ 85°C
• Package form factor: 20-pin DIP with 0.300" (7.62mm) pitch
• Mounting technology: Through-hole compatible
• Regulatory compliance: ROHS3 compliant, REACH unaffected

Parts meeting all these criteria are considered direct functional and mechanical equivalents suitable for direct substitution in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The SN74AC245N is a direct equivalent substitute for the SN74AC245NG4. Both parts share identical electrical specifications, package geometry, and functional architecture. The primary distinction is product status: the SN74AC245N maintains active availability through Texas Instruments, whereas the SN74AC245NG4 has been discontinued at DiGi Electronics.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current manufacturing and deployment. The SN74AC245N is suitable for direct replacement in existing designs without circuit modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can the SN74AC245N be used as a direct replacement for the SN74AC245NG4?

A: Yes. Both parts are functionally and mechanically equivalent. They share identical logic architecture, electrical performance specifications, package form factor, and operating parameters. Direct substitution is supported without design changes.

Q: What is the difference between the SN74AC245NG4 and SN74AC245N?

A: The primary difference is product status. The SN74AC245NG4 is discontinued at DiGi Electronics, while the SN74AC245N remains in active production. All electrical, functional, and mechanical specifications are identical.

Q: Are there any packaging differences between these parts?

A: Both parts use the same 20-pin DIP package with 0.300" (7.62mm) pitch and through-hole mounting. No PCB layout or assembly process modifications are required when substituting between these parts.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the SN74AC245NG4 and SN74AC245N are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronics manufacturing and deployment.

Q: What are the critical parameters that define substitution eligibility for this transceiver?

A: Substitution eligibility is determined by matching logic type (non-inverting transceiver), bit configuration (1 element, 8 bits), output type (3-state), electrical performance (24mA output current), supply voltage range (2V ~ 6V), temperature rating (-40°C ~ 85°C), and package form factor (20-pin DIP). All these parameters must align for parts to be considered equivalent.