CS82C50A-5Z UART Interface IC Equivalent & Substitute Parts

Part Overview

The CS82C50A-5Z is a single-channel UART communication interface IC manufactured by Renesas Electronics Corporation, designed for RS232 protocol applications. This 44-PLCC surface mount device operates within a 4.5V to 5.5V supply voltage range and supports data rates up to 625 kbps with integrated modem control functionality.

The CS82C50A-5Z is classified as obsolete, making equivalent substitute parts necessary for ongoing system support, maintenance, and new design implementations where this component is specified.

Substiute Parts

CS82C50A-5Z

Renesas Electronics CorporationIn Stock: 7045CS82C50A-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 CS82C50A-5Z are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Compatibility Criteria:

• Single UART channel configuration
• 44-PLCC (44-LCC J-Lead) package with 16.58x16.58mm footprint
• Surface mount mounting type
• Modem control functionality
• RS232 protocol support capability
• ROHS3 compliance and REACH unaffected status

The Texas Instruments TL16C450FN and TL16C450FNR meet these core requirements. Both devices feature identical electrical and mechanical specifications within the allowed parameter ranges, with supply voltage tolerance of 4.75V to 5.25V, which overlaps with the CS82C50A-5Z operating range. Both substitute parts include false start bit detection and maintain modem control support.

Parameter Comparison

Engineering Selection Recommendations

Both TL16C450FN and TL16C450FNR are qualified substitutes for the CS82C50A-5Z based on electrical and mechanical parameter alignment. The primary distinction between the two Texas Instruments alternatives is packaging format: TL16C450FN is supplied in Tube packaging, while TL16C450FNR is supplied in Tape & Reel (TR) format.

Selection between these two substitutes should be based on procurement and assembly requirements. TL16C450FNR in Tape & Reel format is typically preferred for high-volume automated assembly operations, while TL16C450FN in Tube packaging may be suitable for lower-volume or manual assembly processes.

Both substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original CS82C50A-5Z. The improved moisture sensitivity level (MSL 3 versus MSL 4) of the substitute parts provides enhanced reliability under extended storage conditions.

Frequently Asked Questions (FAQ)

Q: Can TL16C450FN and TL16C450FNR be used interchangeably with CS82C50A-5Z?

A: Yes, both Texas Instruments parts are functionally and mechanically compatible substitutes. The primary difference is packaging format (Tube versus Tape & Reel), which does not affect electrical performance or PCB mounting compatibility.

Q: What is the significance of the supply voltage difference (4.5V-5.5V versus 4.75V-5.25V)?

A: The substitute parts operate within a narrower voltage range that is fully contained within the original part's specification. Systems designed for the CS82C50A-5Z operating range will function correctly with the substitute parts.

Q: Does the improved MSL rating (3 versus 4) affect component selection?

A: The lower MSL rating (3 at 168 hours) of the substitute parts indicates superior moisture resistance compared to the original part (4 at 72 hours). This provides enhanced reliability and longer shelf life under standard storage conditions.

Q: Are there any protocol or data rate limitations with the substitute parts?

A: The substitute parts support RS232 protocol and single UART channel configuration identical to the original part. Data rate specifications are not provided for the substitute parts in the available parameters; however, both devices are qualified for equivalent functional applications.

Q: What packaging considerations should be evaluated for assembly?

A: Both substitute parts use identical 44-PLCC (44-LCC J-Lead) surface mount packages with 16.58x16.58mm footprint. PCB layout and assembly processes require no modification. Packaging format selection (Tube versus Tape & Reel) depends on production volume and assembly automation capabilities.