SN74V3670-6PEU

Overview

The SN74V3670-6PEU is a 3.3-V CMOS first-in, first-out (FIFO) memory with an organization of 8192 words by 36 bits. It operates at frequencies up to 166 MHz with a 6-ns read/write cycle time. The device features user-selectable input and output bus sizing for ×36, ×18, or ×9 configurations. It includes big-endian/little-endian selectable byte representation, 5-V tolerant inputs, and independent read and write clocks.

Feature Summary

• Supports flexible bus matching on both read and write ports with selectable widths of 36, 18, or 9 bits.
• Provides zero-latency retransmit capability and fixed low first-word latency for efficient data buffering.
• Features programmable almost-empty and almost-full flags with selectable synchronous or asynchronous timing modes.

Applications

• Network and telecommunications systems requiring large data buffering
• Video processing applications needing bus size matching
• Signal processing circuits handling unequal bus sizes

Procurement Notes

Verify the specific -6 speed grade suffix against the manufacturer's current datasheet revision to confirm the 166 MHz operational frequency. Ensure the PEU package designation matches the required 128-pin Thin Quad Flat Pack form factor for your PCB layout constraints.

Selection Notes

Select this component when deep memory depth of 8192 x 36 bits is required alongside high-speed 166 MHz operation. It is suitable for designs needing independent read and write clocks and flexible bus width adaptation between system components.

Part Context

This part belongs to the SN74V36x0 family of high-performance submicron CMOS FIFO memories. The family ranges from 1024 to 32768 word depths, all maintaining a 36-bit base width. The SN74V3670 specifically provides the 8192-word capacity within this series.

Replacement Considerations

SN74V3680-6PEU offers greater depth but shares similar electrical characteristics. SN74V3660-6PEU provides reduced storage capacity. Verify pin compatibility and timing specifications before substituting with other family members.