DM74AS245SJX

Overview

The DM74AS245SJX is an octal bus transceiver with 3-STATE outputs manufactured by onsemi. It utilizes an advanced oxide-isolated, ion-implanted Schottky TTL process and features non-inverting logic outputs. The device operates within a supply voltage range of 4.5V to 5.5V and supports free air operating temperatures from 0°C to 70°C. It includes direction control via the DIR input and high-impedance isolation via the G enable input.

Feature Summary

• Advanced oxide-isolated, ion-implanted Schottky TTL process
• Low output impedance suitable for driving terminated transmission lines
• Switching specifications guaranteed over full temperature and VCC range
• PNP inputs designed to reduce input loading

Applications

• Memory systems
• Microprocessor systems
• Asynchronous bidirectional data buses

Procurement Notes

Verify that the ordering code matches the specific package requirements, as suffixes indicate variations such as tape and reel configurations. Confirm the manufacturer origin, noting historical production by Fairchild Semiconductor Corporation before acquisition by onsemi. Ensure the component meets the required environmental operating conditions and electrical characteristics specified in the datasheet.

Selection Notes

Select this component when designing circuits requiring octal bidirectional data transfer with low power consumption and high speed. The device is appropriate for applications needing interface capabilities with CMOS logic levels. Consider the 20-Lead Small Outline Package (SOP) form factor for space-constrained board layouts requiring EIAJ TYPE II dimensions.

Part Context

This part belongs to the 74AS series of logic devices, representing Advanced Schottky technology known for high-speed performance. The DM74AS245 variant specifically provides eight pairs of 3-STATE logic elements configured as bus transceivers. It serves as a standard interface solution for connecting microprocessors to memory or peripheral buses in digital electronic systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.