The Renesas Electronics Corporation 70V05L25J8 is a high-performance integrated circuit designed for memory applications, specifically a 64Kbit Static Random Access Memory (SRAM) with advanced dual-port asynchronous architecture. This compact surface-mount memory solution is engineered to meet demanding electronic design requirements across various technological domains.
The IC features a robust 8K x 8 memory organization, providing efficient data storage and retrieval capabilities with a remarkably fast 25 nanosecond access time. Optimized for low-power environments, the device operates within a 3V to 3.6V supply voltage range and maintains stable performance across temperatures from 0°C to 70°C, making it suitable for industrial and commercial electronic applications.
Packaged in a 68-PLCC (Plastic Leaded Chip Carrier) format measuring 24.21x24.21mm, this memory IC offers convenient mounting and integration into complex electronic systems. Its parallel memory interface and dual-port asynchronous technology enable simultaneous read and write operations, enhancing overall system efficiency and data management capabilities.
Primary advantages include high-speed performance, compact design, and versatile compatibility with various electronic systems requiring reliable volatile memory solutions. The device is particularly well-suited for applications in telecommunications, industrial control systems, automotive electronics, and embedded computing platforms.
While RoHS non-compliant, the memory IC provides a reliable solution for legacy and specialized design requirements. Equivalent alternative models might include similar SRAM configurations from manufacturers like Cypress Semiconductor, Alliance Memory, or Microchip Technology, though specific direct replacements would require detailed comparative analysis.
Potential application areas encompass telecommunications infrastructure, industrial control systems, automotive electronics, aerospace instrumentation, and specialized embedded computing environments where rapid, reliable memory access is critical.
70V05L25J8 Key Technical Attributes
Manufacturer Part Number 70V05L25J8
Manufacturer Renesas Electronics Corporation
Main Category Integrated Circuits (ICs) — Memory
Description IC SRAM 64Kbit Parallel Dual‑Port 68‑PLCC
Base Product Number 70V05L
Technology CMOS SRAM dual‑port asynchronous
Memory Type Volatile
Memory Size 64 Kbit
Memory Organization 8K × 8
Memory Interface Parallel
Access Time 25 ns
Write Cycle Time 25 ns
Supply Voltage 3.0–3.6 V (typical 3.3 V)
Operating Temperature 0°C to 70°C (TA), commercial
RoHS Status Non‑compliant
Mounting Type Surface‑mount
Package Tape & Reel (TR)
Current Quantity Available 2630
70V05L25J8 Packing Size
Package / Case 68‑PLCC (24.21 × 24.21 mm), also referenced as 68‑LCC (J‑Lead)
Supplier Device Package 68‑PLCC (24.21 × 24.21 mm)
Lead Style J‑lead, 68 pins, standardized PLCC footprint
Material Plastic LCC; leaded plating typical of non‑RoHS versions
Pin Configuration Dual‑port parallel bus with address, data and control pins per port; semaphore and BUSY/INT pins
Mounting Surface‑mount; compatible with PLCC sockets and standard reflow processes
Thermal Characteristics Commercial ambient operation 0°C to 70°C; follow board‑level thermal design and derating best practices
Electrical Properties LVTTL/CMOS compatible I/O at 3.3 V; tri‑state outputs; asynchronous (no external clock required)
70V05L25J8 Application
Shared memory between two processors, microcontrollers or FPGAs
Packet buffering and inter‑processor communication in networking and telecom systems
Video, graphics and imaging line buffers or frame slices (8‑bit)
Industrial control and instrumentation where two controllers need concurrent access
Embedded systems handshake memory with hardware arbitration and semaphores
70V05L25J8 Features
This device is a 64 Kbit dual‑port asynchronous SRAM organized as 8K × 8, providing two independent, simultaneous access ports to the same memory array. Each port has its own address, data, and control signals, enabling concurrent reads or writes to different locations without stalling either bus. The dual‑port architecture includes hardware arbitration logic to prevent bus contention and to protect data integrity when both ports attempt to access the same address. Typical dual‑port features include BUSY/INT handshake signals and semaphore flags that allow firmware on each side to coordinate shared resource ownership at the hardware level, significantly reducing software overhead and race conditions. As an asynchronous SRAM, the device requires no external clock; accesses are completed based on specified timing (25 ns address access and 25 ns write cycle), making it straightforward to interface with a wide range of processors and FPGAs using standard chip‑enable, output‑enable, and write‑enable control signals. Operating from a single 3.3 V supply (3.0–3.6 V range), the I/O is compatible with LVTTL/CMOS logic thresholds, and outputs are tri‑stateable to support bus sharing. The commercial temperature rating (0°C to 70°C) is ideal for mainstream embedded and communications systems. The 68‑PLCC package with J‑leads offers robust mechanical compliance and standardized footprinting for dense board layouts, and tape‑and‑reel availability supports automated assembly.
70V05L25J8 Quality and Safety Features
Renesas designs and qualifies its memory products under rigorous quality systems, and the 70V05L family benefits from mature dual‑port SRAM process technology known for long‑term reliability in telecom and embedded applications. Inputs and outputs are designed for industry‑standard ESD protection levels, and the CMOS architecture minimizes latch‑up risk under normal operating conditions. The tri‑state outputs and clear, deterministic control timing help prevent inadvertent bus contention on shared backplanes. Because this specific variant is listed as RoHS non‑compliant, engineers should verify regional environmental requirements and use appropriate handling for leaded components during assembly. Observe standard MSL and ESD handling procedures, store in dry conditions, and follow manufacturer reflow profiles for PLCC packages to maintain product integrity.
70V05L25J8 Compatibility
The 70V05L25J8 is footprint‑compatible with 68‑PLCC sockets and layouts used by legacy IDT/Renesas dual‑port SRAMs of the 70V05L family, enabling straightforward maintenance and upgrades in existing designs. Its 3.3 V LVTTL/CMOS interface pairs cleanly with contemporary microcontrollers, DSPs and FPGAs; however, it should not be assumed 5 V tolerant, so mixed‑voltage systems should level‑shift or ensure 3.3 V logic on all interface pins. The parallel bus, 8‑bit data width and 13‑bit addressing (implied by 8K depth) align with common embedded processor memory interfaces, and the dual‑port semaphore/BUSY mechanisms make it a practical drop‑in for designs that rely on hardware arbitration between two masters.
70V05L25J8 Datasheet PDF
Our website hosts the most authoritative and up‑to‑date datasheet for the Renesas 70V05L25J8. For precise electrical characteristics, timing diagrams, pin descriptions, semaphore and BUSY/INT behavior, and mechanical drawings of the 68‑PLCC package, we strongly recommend downloading the datasheet directly from this product page.
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