SN74V3650-10PEU

Overview

The SN74V3650-10PEU is a 2048 × 36-bit, 3.3-V CMOS first-in, first-out (FIFO) memory fabricated using high-performance submicron technology. It supports 166-MHz operation with a 6-ns read/write cycle time and features independent read and write clocks. The device offers user-selectable bus sizing for input and output ports in widths of 36, 18, or 9 bits. It includes programmable almost-empty and almost-full flags, selectable standard or first-word fall-through timing modes, and big-endian/little-endian byte representation options.

Feature Summary

• Supports flexible bus matching with configurable input and output port widths of 36, 18, or 9 bits to accommodate unequal data buses.
• Features zero-latency retransmit capability allowing data to be reread from the FIFO without disturbing the write pointer.
• Provides user-selectable first-word fall-through or standard timing modes for optimized data access latency.
• Includes programmable almost-empty and almost-full flags with selectable synchronous or asynchronous timing behavior.

Applications

• Network equipment requiring buffering between disparate data rates
• Video signal processing systems handling large data streams
• Telecommunications infrastructure managing protocol conversions
• Data communications interfaces matching bus sizes

Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature range. Confirm that the voltage specifications align with the system design requirements. Ensure that the pinout configuration corresponds to the intended PCB layout. Check for any specific manufacturing revisions that may affect compatibility. Validate all control signal levels against the datasheet specifications.

Selection Notes

Select this component when deep memory depth combined with high-speed operation is required. Consider the SN74V3650 specifically for applications needing 2048 words of storage. Evaluate the need for variable bus widths to simplify interface logic. Assess whether the programmable flag offsets meet the system's flow control needs. Compare against other members of the SN74V36xx family based on capacity requirements.

Part Context

This part belongs to the SN74V36xx series of 3.3-V CMOS FIFO memories. The series includes variants with capacities ranging from 1024 to 32768 words, all maintaining a 36-bit word width. These devices are designed for high-density applications requiring fast data buffering. They utilize advanced submicron CMOS technology to achieve low power consumption and high performance.

Replacement Considerations

Compatible substitutes within the same family include the SN74V3640, SN74V3660, SN74V3670, SN74V3680, and SN74V3690. Selection depends primarily on the required memory depth. All variants share identical pinouts and functional characteristics except for storage capacity. Verify that the alternative part number meets the specific bit-depth requirements of the application.