IS82C50A-5Z UART Interface IC Equivalent & Substitute Parts

Part Overview

The IS82C50A-5Z is a single-channel UART interface IC manufactured by Renesas Electronics Corporation, designed for asynchronous serial communication with RS232 protocol support and modem control capabilities. This component operates at 10 MHz with a maximum data rate of 1 Mbps and is housed in a 44-PLCC surface mount package.

The IS82C50A-5Z is classified as obsolete, making it necessary to identify functionally equivalent substitute components for new designs or ongoing production requirements. Substitute parts must maintain compatibility across electrical specifications, package form factor, and protocol support to ensure seamless integration into existing circuit designs.

Substiute Parts

IS82C50A-5Z

Renesas Electronics CorporationIn Stock: 974IS82C50A-5Z Datasheet

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TL16C450FN

Texas InstrumentsIn Stock: 1896TL16C450FN Datasheet

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TL16C450FNR

Texas InstrumentsIn Stock: 5132TL16C450FNR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IS82C50A-5Z are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Single UART channel configuration
• 44-PLCC (16.58x16.58) surface mount package
• Modem control support
• Supply voltage range overlap (4.5V ~ 5.5V for main part; 4.75V ~ 5.25V for substitutes)
• ROHS3 compliance and MSL 3 rating
• Surface mount technology

The substitute parts TL16C450FN and TL16C450FNR, both manufactured by Texas Instruments, meet these core compatibility requirements. Both substitutes maintain the identical package form factor, single UART channel architecture, and modem control functionality. The substitutes feature False Start Bit Detection, an additional capability not present in the main part. Supply voltage specifications for the substitutes (4.75V ~ 5.25V) fall within the operational range of the IS82C50A-5Z, ensuring electrical compatibility in standard 5V logic applications.

Parameter Comparison

Engineering Selection Recommendations

Both TL16C450FN and TL16C450FNR are qualified substitutes for the IS82C50A-5Z based on electrical and mechanical compatibility. The selection between these two Texas Instruments alternatives depends on packaging and procurement requirements:

TL16C450FN (Tube Packaging): Suitable for lower-volume applications, prototype development, or situations where individual component handling is required. Inventory availability is 1,802 pieces.

TL16C450FNR (Tape & Reel Packaging): Recommended for high-volume production environments where automated assembly processes are employed. This variant offers superior handling efficiency and cost optimization in manufacturing. Inventory availability is 5,114 pieces.

Both substitutes carry Last Time Buy status, indicating limited future availability. ROHS3 compliance and MSL 3 ratings ensure compatibility with modern manufacturing and storage requirements. The substitutes maintain full electrical compatibility within standard 5V logic supply environments.

Frequently Asked Questions (FAQ)

Q: Can TL16C450FN and TL16C450FNR be used interchangeably with IS82C50A-5Z?

A: Yes, both Texas Instruments parts are functionally equivalent substitutes. The primary difference is packaging format: TL16C450FN uses tube packaging for manual handling, while TL16C450FNR uses tape and reel packaging for automated assembly. Both maintain identical electrical specifications and 44-PLCC package dimensions.

Q: What is the significance of False Start Bit Detection in the substitute parts?

A: False Start Bit Detection is an additional feature present in the TL16C450FN and TL16C450FNR that is not specified for the IS82C50A-5Z. This feature enhances communication reliability by detecting erroneous start bits, providing improved error handling in noisy environments. This capability does not affect compatibility but represents an enhancement over the original part.

Q: Are the supply voltage ranges compatible?

A: The IS82C50A-5Z operates at 4.5V ~ 5.5V, while the substitute parts operate at 4.75V ~ 5.25V. The overlap range of 4.75V ~ 5.25V ensures full compatibility in standard 5V logic applications. Both parts are suitable for typical industrial and commercial 5V supply environments.

Q: What packaging considerations should be addressed when transitioning from IS82C50A-5Z to substitute parts?

A: The IS82C50A-5Z packaging format is not specified in available documentation. Both substitute parts use identical 44-PLCC (16.58x16.58) surface mount packages with 44-LCC J-lead configuration. Verify that your PCB layout and assembly equipment are compatible with 44-PLCC packages before implementation.

Q: What is the product status significance of the substitute parts?

A: Both TL16C450FN and TL16C450FNR carry Last Time Buy status, indicating that Texas Instruments has announced end-of-life for these components. While current inventory is available (1,802 and 5,114 pieces respectively), long-term availability is limited. Plan procurement accordingly for future production requirements.

Q: Are compliance certifications equivalent between the main part and substitutes?

A: Yes. Both the IS82C50A-5Z and substitute parts maintain ROHS3 compliance, MSL 3 (168 Hours) moisture sensitivity ratings, and REACH Unaffected status. All components meet identical environmental and regulatory requirements for modern electronics manufacturing.