74HCT7403D,518

FIFOs Memory Overview

The NXP USA Inc. 74HCT7403D,518 is a high-speed CMOS expandable FIFO memory organized as 64 words by 4 bits. It operates within a supply voltage range of 4.5 V to 5.5 V and supports ambient temperatures from -40 °C to +125 °C. The device features TTL-compatible input levels, 3-state outputs, and independent shift-in (SI) and shift-out (SO) controls for synchronous or asynchronous data transfers. It includes status flags (DIR, DOR), master reset (MR), and output enable (OE).

FIFOs Memory Feature Summary

• Expandable First-In First-Out memory architecture with independent shift-in and shift-out operations.
• TTL-compatible input levels ensuring compatibility with standard logic families.
• Integrated status flags indicating data-in-ready and data-out-ready states.
• High-speed burst-mode capability exceeding typical 15 MHz data rates.

FIFOs Memory Applications

• High-speed disc or tape controllers
• Communications buffers

FIFOs Memory Procurement Notes

Verify the specific ordering suffix '518' against official manufacturer documentation to confirm package type and temperature range specifications. Ensure the component matches the SO16 plastic small outline package format. Confirm RoHS compliance and JEDEC JESD7A standards adherence prior to integration into final designs.

FIFOs Memory Selection Notes

Select this component when a compact, expandable FIFO solution with TTL-level inputs is required. It is suitable for applications needing independent read/write control and status flagging. Consider the operating temperature range and supply voltage limits to ensure compatibility with the target system environment.

FIFOs Memory Part Context

This part belongs to the 74HCT series of high-speed Si-gate CMOS devices. It is designed for applications requiring reliable data buffering and synchronization. The device complies with JEDEC standards and offers ESD protection exceeding specified thresholds for robust operation in industrial environments.

FIFOs Memory Replacement Considerations

No public confirmed substitute part numbers are available in the provided source material.