DM74AS245WMX

Overview

The DM74AS245WMX is an octal bus transceiver with 3-STATE outputs manufactured by onsemi. It utilizes an advanced Schottky TTL process and operates within a supply voltage range of 4.5V to 5.5V. The device features non-inverting logic outputs, low output impedance for driving terminated transmission lines, and PNP inputs that reduce input loading. Switching specifications are guaranteed over the full temperature and VCC range.

Feature Summary

• Advanced oxide-isolated, ion-implanted Schottky TTL process
• Non-inverting logic output configuration
• Low output impedance suitable for driving terminated transmission lines
• PNP inputs designed to reduce input loading

Applications

• Memory systems
• Microprocessor systems
• Asynchronous bidirectional data buses

Procurement Notes

Verify the component manufacturer and package type against official datasheets before procurement. Confirm that the ordering code suffix matches the required physical package dimensions and pinout specifications. Ensure compliance with recommended operating conditions regarding supply voltage and free air temperature ranges.

Selection Notes

Select this component when high-speed bidirectional data transfer is required in memory or microprocessor architectures. The device is appropriate for applications needing low output impedance to drive terminated transmission lines. Verify compatibility with CMOS interfacing requirements where VOH equals VCC minus 2V.

Part Context

This part belongs to the 74AS series of octal bus transceivers. It provides eight pairs of 3-STATE logic elements configured for bidirectional communication between buses. The DIR input controls data flow direction, while the G enable input isolates the buses by placing outputs in a high-impedance state.

Replacement Considerations

Consult official replacement lists from onsemi or Fairchild Semiconductor for verified substitutes. Cross-reference absolute maximum ratings and electrical characteristics to ensure functional equivalence.