Renesas 70V06L45PF

Overview

70V06L45PF from IDT (Integrated Device Technology) is a high-speed 3.3V 16K × 8 dual-port static RAM with true independent left/right ports, 45ns read cycle time, industrial temperature range (–40°C to +85°C), and full on-chip semaphore and interrupt logic for inter-processor communication in real-time embedded systems.

For engineers reviewing the 70V06L45PF datasheet, 70V06L45PF pinout, 70V06L45PF application, or 70V06L45PF equivalent, this page delivers verified timing specs, master/slave arbitration behavior, BUSY/INT/SEM signal timing, package-specific pin mapping, and validated alternatives for dual-port SRAM migration in telecom line cards, motor control DSP co-processing, and FPGA-based data acquisition systems.

Technical Context

The 70V06L45PF implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port-enabling simultaneous reads of identical memory locations without contention. Its on-chip arbitration logic uses address-match detection and M/S-selectable BUSY flag behavior (output on Master, input on Slave) to resolve port conflicts.

It supports three distinct functional modes: standard SRAM access (CE = VIL, SEM = VIH), semaphore register access (CE = VIH, SEM = VIL), and interrupt mailbox operation (INTL/INTR set/clear via fixed addresses 3FFEh/3FFFh). All modes operate at 3.3V ±0.3V with TTL-compatible signaling and battery backup data retention down to 2V.

Key Specifications

Pinout & Package

70V06L45PF is packaged in a 68-pin PLCC (PLG68) with 0.05-inch lead pitch, body size ≈ 1.18″ × 1.18″ × 0.16″, and lead finish matte tin over nickel. All VDD pins require local decoupling; all VSS pins must be connected to system ground.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C028V-45AXC, the 70V06L45PF reduces system complexity by integrating arbitration logic on-die; compared with IDT70V25L25PF, it trades 20ns slower access for 30% lower active current and proven field reliability in long-lifecycle industrial deployments.

Availability

70V06L45PF is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, FPGA-based instrumentation, and medical imaging systems requiring stable component supply, long-term lifecycle support, and guaranteed industrial-temperature performance.

Supply support for 70V06L45PF 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) was a fabless semiconductor company specializing in high-performance timing, memory, and RF solutions, acquired by Renesas Electronics in 2019. It pioneered dual-port SRAM architectures for real-time multiprocessing.

The 70V06L45PF belongs to IDT's 70V06 family of 3.3V dual-port SRAMs designed specifically for deterministic inter-processor communication in embedded systems where hardware-enforced synchronization eliminates race conditions and software overhead.

FAQ

What is the maximum operating frequency supported by the 70V06L45PF?

The 70V06L45PF does not specify a clock frequency-it is an asynchronous SRAM. Its performance is defined by timing parameters: 45ns read cycle time (tRC) and 45ns address access time (tAA) establish the upper bound for sustained random-access throughput. For continuous sequential reads, effective bandwidth reaches 22.2 MB/s per port. These values are guaranteed across the full –40°C to +85°C industrial temperature range.

Does the 70V06L45PF support battery backup operation?

Yes, the 70V06L45PF supports battery backup operation with data retention down to 2V supply voltage. When main VDD drops below operational threshold, the device enters data retention mode-maintaining stored contents indefinitely as long as VDD remains ≥2V and temperature stays within specification. This feature is intrinsic to the SRAM cell design and requires no external circuitry beyond a backup battery and diode-OR configuration.

How does the M/S pin affect BUSY signal behavior on the 70V06L45PF?

On the 70V06L45PF, the M/S pin configures BUSY functionality: when M/S = VIH, BUSYL and BUSYR are push-pull outputs that assert LOW during address-contention arbitration; when M/S = VIL, they become inputs used to synchronize writes across cascaded devices in slave configuration. This dual-mode capability enables flexible master/slave topologies without external logic-critical for expanding memory width beyond 8 bits while preserving deterministic timing.

Can the 70V06L45PF be used in a single-port configuration?

Yes, the 70V06L45PF can operate as a single-port SRAM by tying one port's CE high (disabling it) and using only the other port's address, control, and I/O lines. In this mode, it delivers standard 16K × 8 SRAM functionality with 45ns access time and 0.2 µA standby current. All dual-port features (BUSY, SEM, INT) remain inactive but do not impair single-port operation-making it suitable for designs that may later upgrade to dual-processor architecture.

What are the key differences between the 70V06L45PF and the faster 70V06L25PF variant?

The 70V06L25PF offers 25ns access time versus 45ns for the 70V06L45PF, enabling higher bandwidth in latency-sensitive applications. Both share identical pinout, feature set (semaphore, interrupt, BUSY), and industrial temperature rating. However, the 70V06L25PF draws higher dynamic current (185mA vs. 130mA typ. IDD) and has stricter setup/hold timing requirements-making the 70V06L45PF preferable where power efficiency, thermal margin, or board-level timing margin is prioritized over peak speed.