27128A-20/B

Overview

The ADM211EAR-REEL is a quad line transceiver manufactured by Rochester Electronics. It utilizes a PDSO28 package (MS-013AE, SOIC-28) with 28 pins. The device supports EIA-232-E and V.28 interface standards. It features Schmitt trigger inputs and four driver bits. The component operates within a maximum temperature of 85 °C and has a moisture sensitivity level of 1.

Feature Summary

• Quad line transceiver functionality for serial communication
• Schmitt trigger input characteristics for noise immunity
• Compliance with EIA-232-E and V.28 interface standards

Applications

• Serial data transmission systems
• Industrial control interfaces
• Computer peripheral connections

Procurement Notes

Verify the manufacturer designation as Rochester Electronics, which typically handles surplus or obsolete components. Confirm the specific package type PDSO28 and pin count match your PCB footprint requirements. Ensure the operating temperature range up to 85 °C meets your environmental specifications. Check lead status and RoHS compliance details directly with the supplier, as these vary by lot.

Selection Notes

Select this component when a quad transceiver compatible with RS-232 standards is required in a surface-mount SOIC-28 package. Consider the Schmitt trigger inputs if signal integrity in noisy environments is a priority. Verify that the 85 °C maximum operating temperature aligns with your system's thermal design constraints before finalizing the bill of materials.

Part Context

Rochester Electronics specializes in sourcing and distributing obsolete and hard-to-find integrated circuits. This quad line transceiver falls under their analog mixed-signal portfolio, providing continuity for designs requiring legacy interface components. The part serves as a bridge between microprocessors and serial communication lines.