Renesas 5962-9161704MXA

Overview

5962-9161704MXA from IDT is a military-grade 8K × 16-bit true dual-port static RAM with independent asynchronous left/right ports, 20ns access time (max), 5V ±10% supply, and on-chip semaphore arbitration logic. It supports MASTER/SLAVE cascading for 32-bit+ bus expansion and operates across –55°C to +125°C for avionics and defense computing.

For engineers reviewing the 5962-9161704MXA datasheet, 5962-9161704MXA pinout, 5962-9161704MXA application, or 5962-9161704MXA equivalent, key selection criteria include guaranteed 20ns military-speed timing, BUSY-flag port arbitration, battery-backed 2V data retention, and QML-38535-compliant 84-pin PGA packaging.

Technical Context

The 5962-9161704MXA implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port. Its on-chip arbitration logic resolves simultaneous access contention via BUSY flag assertion and supports semaphore signaling using A0–A2 addressing of eight shared flags.

It features TTL-compatible 5V operation, separate upper/lower byte enables (UBL/LBL, UBR/LBR), and Master/Slave select (M/S) for cascaded configurations. The device enters low-power standby (<1 mA typ.) when chip enable is deasserted, with full data retention down to 2V.

Key Specifications

Pinout & Package

5962-9161704MXA is housed in an 84-pin ceramic Pin Grid Array (PLG84) package with 1.15″ × 1.15″ footprint and 0.17″ height, rated for military temperature operation and hermetic sealing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C028V-20AXC and AS7C38099B-20BIN, the 5962-9161704MXA delivers QML-38535 Class V qualification, integrated BUSY arbitration, and 2V data retention-making it the sole option for deployed airborne and missile systems requiring guaranteed timing and radiation-hardened operation.

Availability

5962-9161704MXA is available at Aetrix Electronics and suitable for avionics, radar signal processing, and secure communications systems requiring stable component supply, long-term obsolescence management, and traceable military-grade sourcing.

Supply support for 5962-9161704MXA 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 memory, timing, and interface solutions for aerospace, defense, and industrial markets.

The 5962-9161704MXA belongs to IDT's military-qualified dual-port SRAM product line, engineered specifically for deterministic real-time computing in safety-critical embedded systems operating under extreme environmental stress.

FAQ

What is the maximum operating temperature range certified for the 5962-9161704MXA?

The 5962-9161704MXA is qualified for operation from –55°C to +125°C per MIL-PRF-38535 QML Class V requirements. This extended range ensures reliable functionality in jet engine bays, missile canisters, and space-qualified payloads where thermal extremes are routine. All AC/DC parameters in the datasheet are guaranteed across this full range, and the 5962-9161704MXA undergoes rigorous burn-in and temperature cycling validation.

Does the 5962-9161704MXA support true simultaneous read access to the same memory location from both ports?

Yes, the 5962-9161704MXA implements true dual-port memory cells that allow concurrent reads from identical addresses on left and right ports without contention or latency penalty. This capability is intrinsic to its silicon design and requires no external arbitration-enabling lock-free data sharing in dual-processor architectures. The 5962-9161704MXA datasheet explicitly confirms this behavior in the Features section and Functional Block Diagram.

How does the BUSY arbitration mechanism work in the 5962-9161704MXA during simultaneous write attempts?

When both ports attempt to write to the same address, the 5962-9161704MXA asserts BUSY on the lower-priority port (determined by M/S configuration and tAPS setup) to stall the write until the higher-priority port completes. The BUSY signal is hardware-generated with guaranteed timing (tBAA ≤ 20 ns), eliminating race conditions. This behavior is documented in Truth Table II and Timing Waveform drw 13–14 of the 5962-9161704MXA datasheet.

Can the 5962-9161704MXA be used in battery-backed applications, and what is the minimum retention voltage?

Yes, the 5962-9161704MXA supports battery backup operation with guaranteed data retention down to 2.0 V (VDR), as specified in Table 10. In retention mode, ICCDR remains ≤4000 µA across the full military temperature range. This allows integration with coin-cell or supercapacitor backup circuits in black-box recorders and mission-critical holdover systems where main power may fail unexpectedly.

Is the 5962-9161704MXA pin-compatible with other members of the IDT7025 family, such as the commercial 7025S-20JGI?

No-the 5962-9161704MXA uses an 84-pin ceramic PGA (PLG84) package, while the 7025S-20JGI uses a 100-pin TQFP. Although both share identical pin functions and logic behavior, their physical footprints, thermal characteristics, and screening levels differ fundamentally. Direct PCB replacement is not possible; redesign is required to accommodate the 5962-9161704MXA's hermetic PGA package and QML-38535 compliance.