DS8923AM

Overview

The DS8923AM is a dual differential line transceiver in a 16-pin SOIC package. It integrates two independent drivers and receivers compliant with RS-422, ST506, ST412, and ESDI standards. The device operates on a single 5V supply (4.5V to 5.5V) within the commercial temperature range of 0°C to 70°C. Key electrical parameters include a typical propagation delay of 12 ns, output skew of ±0.5 ns, and receiver sensitivity of ±200 mV. It features tri-state outputs with separate driver and receiver enable controls, input hysteresis of 70 mV, and fail-safe circuitry.

Feature Summary

• Separate control functions for driver and receiver sections
• Complementary driver outputs providing low signal skew
• Receiver input fail-safe circuitry prevents undefined states
• Glitch-free power-up and power-down protection

Applications

• ESDI disk drive interface circuits
• ST506 and ST412 storage system connections
• RS-422 balanced data transmission lines

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current Package Option Addendum. Confirm that the component meets the required RoHS and environmental specifications for the target application. Check the production status to ensure availability for new designs or lifetime buy periods.

Selection Notes

Select this model when independent tri-state control for drivers and receivers is required. Ensure the application environment stays within the 0°C to 70°C operating temperature range. Verify that the 5V supply voltage aligns with the system power architecture and that the SOIC-16 package fits the PCB layout constraints.

Part Context

This component belongs to the DS8922/DS8923A family of dual differential line transceivers. It shares core architectural similarities with the DS8922A but differs in its control logic configuration. The family is designed for high-speed digital communication interfaces requiring robust noise immunity and reliable data transmission over twisted pair media.

Replacement Considerations

The DS8922A is a functional alternative within the same family, though it utilizes shared enable controls rather than separate ones. Verify pin compatibility and control logic differences before substitution.