SN74V3650-6PEU

Overview

The SN74V3650-6PEU is a 3.3-V CMOS first-in, first-out (FIFO) memory with a storage organization of 2048 words by 36 bits. It supports bus-matching configurations for data widths of 36, 18, or 9 bits on both input and output ports. The device operates at frequencies up to 166 MHz with a 6-ns read/write cycle time. It features independent read and write clocks, user-selectable big-endian/little-endian byte representation, and programmable almost-empty and almost-full flags.

Feature Summary

• Supports flexible bus matching with selectable input and output port widths of 36, 18, or 9 bits.
• Features zero-latency retransmit capability allowing data rereading from the FIFO start without disturbing write pointers.
• Includes programmable almost-empty and almost-full flags with selectable synchronous or asynchronous timing modes.
• Offers user-selectable standard or first-word fall-through (FWFT) timing modes.

Applications

• Network buffering applications requiring large data storage capacity.
• Video signal processing systems needing bus size adaptation.
• Telecommunications equipment utilizing high-speed data transfer.
• Data communications interfaces managing unequal bus sizes.

Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature range. Confirm that the device revision aligns with current production data specifications. Ensure compatibility with system voltage levels and clock requirements before finalizing procurement decisions.

Selection Notes

Select this component when deep memory depth combined with high-speed operation is required. Consider the SN74V3650 specifically for its 2048 x 36 bit organization. Evaluate the need for independent read/write clocks and flexible bus matching capabilities during system design.

Part Context

This part belongs to the SN74V36xx series of 3.3-V CMOS FIFO memories. Other members in the family include the SN74V3640, SN74V3660, SN74V3670, SN74V3680, and SN74V3690, which offer varying memory depths ranging from 1024 to 32768 words while maintaining the same 36-bit width architecture.

Replacement Considerations

Direct substitutes within the same family include the SN74V3640, SN74V3660, SN74V3670, SN74V3680, and SN74V3690. These parts share identical pinouts and functional characteristics but differ in memory depth. Verify that the alternative depth meets application requirements.