Renesas 7132SA25J8/C

Overview

IDT7132SA25J8/C from Integrated Device Technology (IDT) is a high-speed 2K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, BUSY output flag (open-drain), and 25 ns maximum access time. It operates at 5V ±10%, supports industrial temperature range (–40°C to +85°C), and enables error-free 16-bit-or-wider memory expansion when paired with IDT7142 SLAVE devices in real-time embedded control systems.

For engineers reviewing the IDT7132SA25J8/C datasheet, IDT7132SA25J8/C pinout, IDT7132SA25J8/C application, or IDT7132SA25J8/C equivalent, key selection criteria include its 25 ns read/write cycle timing, dual independent port arbitration, open-drain BUSY signaling requiring 270 Ω pull-up, TTL-compatible I/O, and 48-pin flatpack (FP48) packaging for space-constrained military/industrial PCBs.

Technical Context

The IDT7132SA25J8/C implements fully asynchronous dual-port architecture with separate address, control, and data buses per port-enabling concurrent read/write operations without external logic. Its on-chip arbitration logic resolves contention via BUSY assertion based on chip enable (CE) and address match detection, not R/W state.

As a MASTER-only device, it features two open-drain BUSY outputs (BUSYL/BUSYR) that require external 270 Ω pull-up resistors; these signals inhibit writes on the opposing port during address collision. The device enters low-power standby (ISB3 ≤ 1.0 mA typ.) when both CE pins are deasserted at CMOS levels.

Key Specifications

Pinout & Package

Package: 48-lead flatpack (FP48), body size ≈ 0.75 in × 0.75 in × 0.11 in, hermetically sealed for high-reliability applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C024AV-25AXC, IDT7132SA25J8/C delivers integrated arbitration and open-drain BUSY signaling ideal for compact dual-CPU designs, while IDT7142SA25J8/C serves strictly as a drop-in SLAVE - neither offers standalone MASTER functionality like IDT7132SA25J8/C.

Availability

IDT7132SA25J8/C is available at Aetrix Electronics and suitable for real-time digital signal processing, dual-processor communication buffering, and avionics flight control systems requiring stable component supply across extended production lifecycles.

Supply support for IDT7132SA25J8/C 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

Integrated Device Technology (IDT) was a fabless semiconductor company specializing in timing, memory interface, and RF solutions before its acquisition by Renesas Electronics in 2019. IDT's dual-port SRAMs were engineered for deterministic, low-latency memory sharing in mission-critical systems.

IDT7132SA25J8/C belongs to the IDT7132/7142 family of high-speed dual-port SRAMs designed specifically for hardware-coherent memory sharing between independent processors, DSPs, or ASICs in aerospace, defense, and industrial automation.

FAQ

What is the function of the BUSY pins on IDT7132SA25J8/C?

The BUSYL and BUSYR pins on IDT7132SA25J8/C are open-drain outputs that assert low when address contention occurs between ports, signaling the opposing port to stall writes. Each requires a 270 Ω pull-up resistor to VCC per datasheet Note 1. This hardware arbitration eliminates software overhead and ensures deterministic behavior in dual-processor systems using IDT7132SA25J8/C.

Can IDT7132SA25J8/C operate in battery backup mode?

No, IDT7132SA25J8/C is the SA (standard power) variant and does not support battery backup. Only LA versions (e.g., IDT7132LA25J8/C) provide 2V data retention capability. The SA suffix confirms active power consumption of 325 mW typical and standby of 5 mW typical - optimized for mains-powered industrial systems rather than battery-held memory.

Which package type is used by IDT7132SA25J8/C?

IDT7132SA25J8/C uses a 48-lead flatpack (FP48) package with dimensions approximately 0.75 in × 0.75 in × 0.11 in. This hermetic ceramic package meets MIL-PRF-38535 QML requirements and is distinct from DIP, LCC, or PLCC variants - confirmed by the "J8/C" suffix denoting FP48 with commercial-industrial screening.

How does IDT7132SA25J8/C differ from IDT7142SA25J8/C?

IDT7132SA25J8/C is a MASTER device with on-chip arbitration logic and open-drain BUSY outputs, while IDT7142SA25J8/C is a SLAVE device with BUSY inputs and no arbitration circuitry. They share identical speed (25 ns), organization (2K × 8), and FP48 packaging, but IDT7132SA25J8/C can operate standalone or drive multiple IDT7142SA25J8/C units in width-expanded configurations - a functional distinction critical for system architecture.

What are the DC input voltage limits for IDT7132SA25J8/C?

IDT7132SA25J8/C accepts VIH ≥ 2.2 V (min) and VIL ≤ 0.8 V (max) for TTL-compatible inputs, with absolute maximum terminal voltage of –0.5 V to +7.0 V relative to GND. Input leakage current is ≤10 µA at VCC = 5.5 V. These specifications ensure robust interfacing with 5V microcontrollers and FPGAs without level shifters, as verified in DC Electrical Characteristics Table 5.