IDT72V7250L15BB

FIFOs Memory Overview

The IDT72V7250L15BB is a 3.3V high-density synchronous FIFO with a memory organization of 2,048 x 72 bits. It operates at a maximum clock frequency of 66.7 MHz with a cycle time of 15 ns and an access time of 10 ns. The device features independent read and write clocks, user-selectable bus matching for x72, x36, or x18 data widths, and supports both IDT Standard and First Word Fall Through timing modes. It includes programmable flags, auto power down, and JTAG boundary scan capabilities in a 256-pin PBGA package.

FIFOs Memory Feature Summary

• Supports flexible bus-matching configurations allowing variable input and output port widths (x72, x36, x18) to match system buses of unequal sizes.
• Features independent read and write clock domains enabling simultaneous read and write operations without frequency restrictions between clocks.
• Includes programmable Almost-Empty and Almost-Full flags that can be configured via serial or parallel methods with selectable default offsets.

FIFOs Memory Applications

• Network buffering and telecommunications systems requiring large data storage capacity.
• Video processing applications needing high-speed data flow management.
• Data communications interfaces requiring bus size adaptation and synchronization.

FIFOs Memory Procurement Notes

Verify the specific suffix 'BB' corresponds to the 256-pin Fine Pitch Ball Grid Array package and industrial temperature range availability if required. Confirm the 'L15' designation aligns with the 15 ns cycle time specification. Check current manufacturing status as IDT products may have been discontinued or superseded by Renesas equivalents. Ensure voltage levels match the 3.3V requirement.

FIFOs Memory Selection Notes

Select this component when a 2K x 72 bit depth is required alongside high-speed synchronous operation. Consider the bus-matching feature if interfacing between 72-bit and narrower data paths. Evaluate the need for First Word Fall Through mode versus standard timing based on latency requirements. Verify compatibility with 3.3V logic levels and check if JTAG boundary scan support is necessary for testing.

FIFOs Memory Part Context

This part belongs to the IDT72V72xx series of 3.3V Supersync II FIFOs, which offer varying memory depths from 512 x 72 to 65,536 x 72 bits. The series is characterized by high-performance submicron CMOS technology and flexible configuration options. The IDT72V7250 specifically provides the 2,048-word depth option within this family.

FIFOs Memory Replacement Considerations

Check for direct pin-compatible replacements within the IDT72V72xx series with different depth suffixes (e.g., IDT72V7240 or IDT72V7260) if memory size differs. Verify if newer Renesas-branded equivalents exist for discontinued IDT parts. Ensure any substitute maintains the 256-pin PBGA package and 3.3V operating voltage.

FIFOs Memory FAQ

How is the bus width configured?

The input and output bus widths are configured during Master Reset using the IW, OW, and BM pins to select combinations of x72, x36, or x18.

What is the difference between IDT Standard and FWFT modes?

In IDT Standard mode, every word requires a read enable signal. In FWFT mode, the first word appears automatically after three clock cycles without needing REN asserted.