Renesas 7134SA70P

Overview

IDT7134SA70P from Integrated Device Technology is a high-speed 4K × 8 dual-port static RAM with 70 ns maximum read cycle time, TTL-compatible 5 V ±10% operation, and independent asynchronous left/right port access. It features 48-pin plastic DIP packaging, 700 mW typical active power, and 5 mW typical standby power - deployed in real-time interprocessor communication and military-grade avionics data buffering.

For engineers reviewing the IDT7134SA70P datasheet, IDT7134SA70P pinout, IDT7134SA70P application, or IDT7134SA70P equivalent, key selection considerations include dual-port arbitration-free timing, military temperature range (–55°C to +125°C), 48-pin DIP mechanical compatibility, and SRAM data retention absence (SA variant, non-battery-backed).

Technical Context

The IDT7134SA70P implements fully asynchronous dual-port architecture with separate address, control, and I/O buses for left (L) and right (R) ports - enabling concurrent read/write operations without on-chip arbitration logic. Each port has dedicated CE, OE, and R/W controls, and memory array access is enabled only when its CE is low.

It uses CMOS high-performance fabrication, supports TTL-level input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V), and guarantees 70 ns read cycle time (tRC) across military temperature range. Power-down is controlled per-port via CE high, entering ISB1 standby mode (25 mA max at 70 ns speed).

Key Specifications

Pinout & Package

Package: 48-pin plastic DIP (P48-1), 0.600-inch wide, through-hole mountable with 0.100-inch lead pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C133-70JC and IDT7133SA70P, the IDT7134SA70P uniquely delivers full 4K × 8 capacity in a QML-qualified military package with verified 70 ns timing - making it irreplaceable in safety-critical, temperature-extreme deployments where pin compatibility and certification cannot be compromised.

Availability

IDT7134SA70P is available at Aetrix Electronics and suitable for military avionics, real-time industrial controllers, and high-reliability test instrumentation requiring stable component supply across extended lifecycle windows.

Supply support for IDT7134SA70P 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) is a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance silicon solutions for communications, computing, and industrial markets.

The IDT7134 product line was designed specifically for deterministic, arbitration-free dual-ported memory applications in defense, aerospace, and industrial control systems demanding guaranteed timing and military-grade reliability.

FAQ

What is the maximum operating temperature range for the IDT7134SA70P?

The IDT7134SA70P is rated for –55°C to +125°C ambient operation and is manufactured in compliance with MIL-PRF-38535 QML. This military temperature range ensures reliable functionality in harsh environments such as aircraft engine bays, missile guidance sections, and ground vehicle power electronics - where commercial or industrial grade parts would fail.

Does the IDT7134SA70P support battery backup for data retention?

No, the IDT7134SA70P does not support battery backup. It is the SA (Standard Power) variant; only the LA (Low Power) variant (e.g., IDT7134LA70P) provides 2 V data retention capability. The IDT7134SA70P enters low-power standby (ISB1) when CE is high but loses data below VCC = 4.5 V - confirming its role in mains-powered, non-retain applications.

Is the IDT7134SA70P pin-compatible with other IDT7134 speed grades?

Yes, all IDT7134SA variants (e.g., IDT7134SA20P, IDT7134SA25P, IDT7134SA35P, IDT7134SA45P, IDT7134SA55P, IDT7134SA70P) share identical 48-pin plastic DIP pinouts and electrical interfaces. Speed grading affects only AC timing parameters - allowing drop-in replacement in existing layouts when timing margins permit slower access.

What is the meaning of "SA" in the IDT7134SA70P part number?

The "SA" in IDT7134SA70P denotes Standard Power configuration - distinguishing it from the LA (Low Power) variant. SA devices draw 700 mW typical active power and 5 mW typical standby power, optimized for performance over ultra-low-power operation. This designation appears in the ordering code per IDT's 2013 datasheet revision (DSC-2720/14).

Can both ports of the IDT7134SA70P perform simultaneous read operations?

Yes, the IDT7134SA70P supports fully independent simultaneous read operations on left and right ports - provided address and control signals are valid and non-contending. Its dual-port architecture allows concurrent access without internal arbitration, but users must ensure external synchronization to prevent data corruption during simultaneous writes to the same memory location.