Renesas 7133LA25JGI

Overview

7133LA25JGI from IDT is a high-speed 2K × 16 dual-port static RAM with master arbitration logic, 25ns max access time (industrial grade), 1050mW typical active power, 1µA typical standby current, and battery backup data retention at 2V. It enables concurrent asynchronous read/write access from two independent ports in real-time embedded systems requiring deterministic memory arbitration.

For engineers reviewing the 7133LA25JGI datasheet, 7133LA25JGI pinout, 7133LA25JGI application, or 7133LA25JGI equivalent, this page delivers verified timing parameters, industrial-temperature package mapping, BUSY arbitration behavior, byte-level write control, and direct replacement guidance for dual-port SRAM selection in military/industrial control, digital signal processing, and FPGA co-processor interfaces.

Technical Context

The 7133LA25JGI implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port. Its on-chip arbitration logic resolves simultaneous accesses to identical addresses by asserting open-drain BUSY outputs (BUSYL/BUSYR) to stall the lower-priority port - a feature exclusive to the IDT7133 master family.

It supports byte-selectable writes via R/WLUB/R/WLLB (left port) and R/WRUB/R/WRLB (right port), enabling 8-bit granularity without external logic. The device operates from a single 5V ±10% supply, retains data down to 2V, and enters ultra-low-power standby (<1µA) when both chip enables (CEL/CER) are deasserted at CMOS levels.

Key Specifications

Pinout & Package

7133LA25JGI is packaged in a 68-pin PLCC (PLG68) with 0.05-inch lead pitch and 0.95″ × 0.95″ body size. Both VCC and GND pins must be connected to ensure reliable operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-port SRAM applications.

Compared with CY7C133-25JC, 7133LA25JGI integrates arbitration hardware to eliminate external components and reduce system latency; compared with IDT7143LA25JGI, it provides autonomous master functionality essential for standalone dual-CPU designs.

Availability

7133LA25JGI is available at Aetrix Electronics and suitable for real-time digital signal processing, FPGA co-processor memory interfaces, and industrial motion controller buffers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 7133LA25JGI includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

IDT (Integrated Device Technology) is a fabless semiconductor company specializing in high-performance timing, memory interface, and RF solutions, now part of Renesas Electronics.

The IDT7133 family was designed specifically for deterministic, low-latency dual-ported memory applications in military, industrial, and communications systems requiring hardware-based arbitration and battery backup capability.

FAQ

What is the operating temperature range for the 7133LA25JGI?

The 7133LA25JGI is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the "Maximum Operating Temperature and Supply Voltage" table and applies to all speed grades marked 'LA' in the IDT7133/43 family. The 'JGI' suffix denotes the 68-pin PLCC package with industrial temperature qualification.

Does the 7133LA25JGI include on-chip arbitration logic?

Yes, the 7133LA25JGI includes dedicated on-chip arbitration logic - a defining feature of the IDT7133 master series. This logic asserts BUSYL and BUSYR open-drain outputs to stall contending ports during simultaneous access to the same memory location, eliminating the need for external arbitration circuitry.

What is the minimum supply voltage required for data retention in the 7133LA25JGI?

The 7133LA25JGI maintains data integrity at a minimum VCC of 2.0V, as specified in the "Data Retention Characteristics" table (Table 08). This 2V retention capability is exclusive to LA (low-power) variants and enables reliable operation during brownout or battery-backup scenarios.

Can the 7133LA25JGI be used as a standalone dual-port RAM without a slave device?

Yes, the 7133LA25JGI functions fully as a standalone 16-bit dual-port SRAM. Its arbitration logic operates internally between its left and right ports. The SLAVE IDT7143 is optional and only required when expanding the data bus width beyond 16 bits (e.g., to 32 or 64 bits) while retaining hardware arbitration.

What package type does the 7133LA25JGI use, and what are its mechanical dimensions?

The 7133LA25JGI uses a 68-pin plastic leaded chip carrier (PLCC), designated PLG68. Per the "Pin Configurations" documentation, its body measures approximately 0.95 inches × 0.95 inches × 0.17 inches (24.1 mm × 24.1 mm × 4.3 mm), with standard 0.05-inch lead pitch and J-lead geometry.