SN74ABT2245NG4 Equivalent & Substitute Parts

Part Overview

The SN74ABT2245NG4 is a non-inverting transceiver logic integrated circuit manufactured by Texas Instruments. This device functions as a 1-element, 8-bit per element transceiver with 3-state output capability, designed for 5.5V operation in 20-pin DIP packaging. The SN74ABT2245NG4 is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing system maintenance, repair, and component procurement.

Substiute Parts

SN74ABT2245NG4

Texas InstrumentsIn Stock: 756SN74ABT2245NG4 Datasheet

Current PartRFQ

SN74ABT2245N

Texas InstrumentsIn Stock: 1693SN74ABT2245N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74ABT2245NG4 is determined by strict equivalence across the following critical parameters:

• Logic Function: Transceiver, Non-Inverting configuration with identical element and bit-per-element count (1 element, 8 bits per element)
• Output Characteristics: 3-State output type with matching current specifications (32mA high, 64mA low)
• Electrical Performance: Supply voltage range 4.5V ~ 5.5V and operating temperature range -40°C ~ 85°C
• Physical Form Factor: 20-pin DIP package with 0.300" (7.62mm) spacing and through-hole mounting
• Compliance Standards: ROHS3 compliance and REACH unaffected status

The SN74ABT2245N qualifies as a direct substitute based on identical electrical specifications, package configuration, and functional characteristics. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The SN74ABT2245N is the direct substitute for the discontinued SN74ABT2245NG4. Both devices share identical electrical specifications, functional characteristics, and physical packaging. The SN74ABT2245N maintains active product status with Texas Instruments and is available in higher inventory quantities, making it the preferred selection for new procurement and system replacement applications.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The transition from the NG4 packaging variant to the N variant involves no functional or electrical compromise.

Frequently Asked Questions (FAQ)

Q: Can the SN74ABT2245N directly replace the SN74ABT2245NG4 in existing circuit designs?

A: Yes. The SN74ABT2245N is electrically and functionally identical to the SN74ABT2245NG4. Both devices feature the same 20-pin DIP package, supply voltage range, output current specifications, and operating temperature range. Direct pin-for-pin substitution is valid.

Q: What is the difference between the SN74ABT2245NG4 and SN74ABT2245N part numbers?

A: The primary difference is packaging format and product status. The NG4 variant is discontinued, while the N variant maintains active status. Both share the same base product number 74ABT2245 and identical electrical characteristics.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the SN74ABT2245NG4 and SN74ABT2245N maintain ROHS3 compliance and REACH unaffected status. No additional testing or validation is required for regulatory compliance when substituting between these parts.

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

A: Substitution is determined by matching logic type (Transceiver, Non-Inverting), element count (1), bits per element (8), output type (3-State), current specifications (32mA high, 64mA low), supply voltage (4.5V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and physical package (20-DIP, 0.300" spacing).

Q: Is the SN74ABT2245N available in the same through-hole package?

A: Yes. The SN74ABT2245N is supplied in the 20-PDIP (20-pin DIP) package with 0.300" (7.62mm) spacing, identical to the SN74ABT2245NG4. Through-hole mounting compatibility is maintained.