SN74V263-6GGM

Overview

The SN74V263 is a high-speed, deep first-in, first-out (FIFO) memory fabricated using 3.3-V CMOS technology. It supports user-selectable memory organizations of 8192 × 18 or 16384 × 9. The device operates at frequencies up to 166 MHz with a 6-ns read/write cycle time. It features independent read and write clocks, allowing simultaneous operations. Bus sizing is configurable for ×9 or ×18 data flow on both input and output ports. The component includes programmable flags, selectable timing modes, and big-endian/little-endian byte representation options.

Feature Summary

• Supports flexible bus matching with user-selectable ×9 or ×18 input and output port widths.
• Features independent read and write clock domains enabling simultaneous data access.
• Includes programmable almost-empty and almost-full flags with selectable offset thresholds.
• Provides selectable First-Word Fall-Through (FWFT) or standard timing modes.

Applications

• Network buffering systems
• Video signal processing
• Telecommunications equipment
• Data communications interfaces

Procurement Notes

Verify the specific package variant against the datasheet pinout diagrams. Confirm that the GGM suffix corresponds to the 100-pin Ball Grid Array (BGA) configuration. Ensure compatibility with 3.3-V logic levels and check for any specific master reset requirements during system initialization.

Selection Notes

Select this component when deep memory depth and high-speed operation are required. Consider the SN74V263 for applications needing asymmetric bus width conversion between 9-bit and 18-bit interfaces. Evaluate the need for programmable flag offsets and retransmit capabilities before choosing over simpler FIFO architectures.

Part Context

This part belongs to the SN74V26x family of high-performance submicron CMOS FIFO memories. The family includes variants with different depths such as the SN74V273, SN74V283, and SN74V293. All members share similar functional characteristics but differ in storage capacity and organization options.

Replacement Considerations

SN74V273: Offers 16384 × 18 or 32768 × 9 organization. SN74V283: Provides 32768 × 18 or 65536 × 9 organization. SN74V293: Supports 65536 × 18 or 131072 × 9 organization. Verify pin compatibility and depth requirements when substituting.