74FCT3244APGG8 Equivalent & Substitute Parts

Part Overview

The 74FCT3244APGG8 is a non-inverting buffer logic IC manufactured by Renesas Electronics Corporation, featuring 2 elements with 4 bits per element and 3-state output capability. This component operates across a 2.7V to 3.6V supply voltage range 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.

Substiute Parts

74FCT3244APGG8

Renesas Electronics CorporationIn Stock: 222474FCT3244APGG8 Datasheet

Current PartRFQ

74FCT3244AQG8

IDT, Integrated Device Technology IncIn Stock: 633574FCT3244AQG8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74FCT3244APGG8 is determined by strict equivalence across the following critical parameters:

• Logic Type: Buffer, Non-Inverting
• Number of Elements: 2
• Number of Bits per Element: 4
• Output Type: 3-State
• Current - Output High, Low: 8mA, 24mA
• Voltage - Supply: 2.7V ~ 3.6V
• Operating Temperature: -40°C ~ 85°C (TA)
• Base Product Number: 74FCT3244

The 74FCT3244AQG8 meets all functional and electrical requirements for direct substitution. While packaging differs (20-QSOP versus 20-TSSOP), both are surface-mount 20-pin configurations with compatible pinouts for the 74FCT3244 series. The substitute part is currently in active production status, providing supply continuity for the obsolete original part.

Parameter Comparison

Engineering Selection Recommendations

The 74FCT3244AQG8 is the manufacturer-recommended substitute for the obsolete 74FCT3244APGG8. Both parts share identical functional specifications, electrical characteristics, and operating parameters. The substitute maintains ROHS3 compliance status and operates within the same temperature and voltage ranges.

The primary consideration for implementation is package geometry. The 74FCT3244AQG8 uses a 20-SSOP package (0.154" width) compared to the original 20-TSSOP package (0.173" width). Both are surface-mount configurations with compatible pinouts for the 74FCT3244 series. PCB layout modifications may be required to accommodate the narrower SSOP package footprint.

The substitute part is in active production status, ensuring long-term availability and supply chain stability compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can the 74FCT3244AQG8 directly replace the 74FCT3244APGG8 in existing designs?

A: Yes, the 74FCT3244AQG8 provides functional equivalence across all electrical and logic parameters. PCB layout adjustment is necessary due to package width differences (20-SSOP versus 20-TSSOP), but pinout compatibility is maintained within the 74FCT3244 series.

Q: What is the difference between TSSOP and SSOP packaging?

A: Both are surface-mount 20-pin packages. The TSSOP (Thin Shrink Small Outline Package) measures 0.173" in width, while the SSOP (Shrink Small Outline Package) measures 0.154" in width. The SSOP is a more compact variant. Pin spacing and functionality remain equivalent.

Q: Are there compliance differences between the original and substitute parts?

A: The original 74FCT3244APGG8 is specified as ROHS3 compliant. The substitute 74FCT3244AQG8 compliance status is not detailed in the provided data. Verify compliance requirements with the component supplier for your specific application.

Q: Why is the original part obsolete?

A: The 74FCT3244APGG8 is classified as obsolete by Renesas Electronics Corporation. The 74FCT3244AQG8 from IDT remains in active production, providing continued availability for the 74FCT3244 logic buffer function.

Q: Are the electrical characteristics identical between both parts?

A: Yes. Both parts operate at 2.7V to 3.6V supply voltage, deliver 8mA high and 24mA low output current, and function across -40°C to 85°C operating temperature range. Logic type, element count, and 3-state output configuration are identical.