7133LA25G

Overview

The Renesas Electronics Corporation 7133LA25G is a high-speed, asynchronous dual-port static random-access memory (SRAM) device. It features a storage capacity of 32 kilobits organized as 2K words by 16 bits. The component provides a typical access time of 25 nanoseconds and operates on a single 5V power supply within the range of 4.5V to 5.5V. Designed for versatile control, it supports simultaneous independent access from two ports with separate write controls for byte-level operations. The device utilizes low-power CMOS technology and includes on-chip port arbitration logic.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to the same memory location from both ports without conflict.
• Low-power consumption characteristics suitable for battery backup applications, offering data retention at reduced voltage levels.
• Integrated port arbitration logic that manages bus contention automatically, providing a BUSY output flag to indicate busy states.
• TTL-compatible input and output structures allowing direct interfacing with standard digital logic families.

Applications

• High-performance computing systems requiring fast data buffering between processors.
• Industrial automation controllers needing reliable non-volatile-like data storage during power transitions.
• Telecommunications equipment utilizing parallel interface protocols for signal processing tasks.
• Network routers and switches employing dual-port RAM for packet buffering and switching fabric management.

Procurement Notes

Verify the specific package configuration and temperature grade before ordering, as suffixes define these attributes. Confirm RoHS compliance status, as older manufacturing runs may not meet current environmental standards. Check for end-of-life notifications or obsolescence notices from the manufacturer. Ensure the supplier provides valid traceability documentation for critical industrial or military-grade requirements.

Selection Notes

Select this component when a system requires true simultaneous read/write access from two distinct masters. Compare access times against system clock speeds to ensure timing margins are met. Evaluate power dissipation requirements, particularly if the design relies on battery backup modes. Verify that the available package types match the printed circuit board layout constraints and thermal management strategies.

Part Context

This part belongs to the 7133SA/LA series of dual-port SRAMs manufactured by Renesas Electronics. The 'LA' designation typically indicates a low-power variant compared to the standard 'SA' series. These devices are designed to function as standalone memories or as master units in conjunction with slave dual-port RAMs to expand data bus widths beyond 16 bits.

Replacement Considerations

The 7133LA25JGI is documented as an upgrade replacement option. Verify pin compatibility and electrical specifications before substituting. Other variants within the 7133LA family may offer different access speeds or package styles but require careful evaluation of timing parameters.