Renesas 70V06L35PF8

Overview

70V06L35PF8 from IDT (Integrated Device Technology) is a high-speed 3.3V 16K × 8 dual-port static RAM with true independent left/right ports, 35 ns 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 70V06L35PF8 datasheet, 70V06L35PF8 pinout, 70V06L35PF8 application, or 70V06L35PF8 equivalent, key selection criteria include port arbitration timing (tAPS = 5 ns), BUSY flag response (tBAA ≤ 20 ns), low standby current (ISB3 = 0.2 mA typ.), and 64-pin TQFP package compatibility with memory coherency designs.

Technical Context

The 70V06L35PF8 implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port-enabling simultaneous read/write access to any memory location without contention-induced data corruption. Its hardware arbitration logic resolves port conflicts via BUSY flag assertion with tBDD ≤ 35 ns disable-to-valid-data delay.

It integrates master/slave configuration (M/S pin), eight semaphore flags (addressed by A0–A2), and interrupt signaling (INTL/INTR) triggered by writes to dedicated mailbox addresses (3FFE_H/3FFF_H). All timing parameters-including tWC = 35 ns write cycle and tSOP = 15 ns semaphore pulse-are specified at VDD = 3.3 V ± 0.3 V and TA = –40°C to +85°C.

Key Specifications

Pinout & Package

64-pin thin quad flatpack (TQFP, package code PNG64), body size 14 mm × 14 mm × 1.4 mm, lead pitch 0.5 mm, RoHS-compliant, green-part option available.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C028V-35AXC, the 70V06L35PF8 delivers integrated semaphore and interrupt logic-reducing BOM count and PCB area-while IDT70V25L35PF8 offers direct scalability to 256 Kbit without redesigning memory interface timing or routing.

Availability

70V06L35PF8 is available at Aetrix Electronics and suitable for industrial PLC communication modules, avionics data concentrators, medical imaging frame buffers, automotive ADAS sensor fusion hubs, and real-time embedded control systems requiring stable component supply across extended product lifecycles.

Supply support for 70V06L35PF8 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), now part of Renesas Electronics, is a fabless semiconductor company specializing in high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.

The 70V06L35PF8 belongs to IDT's legacy dual-port SRAM product line, engineered specifically for deterministic inter-processor communication in hard real-time systems where hardware arbitration and low-latency signaling are critical.

FAQ

What is the maximum operating frequency supported by the 70V06L35PF8?

The 70V06L35PF8 does not operate at a fixed clock frequency but supports asynchronous access with a 35 ns read cycle time (tRC), enabling sustained data transfer rates up to 28.6 million words per second per port. Its timing is governed by parameter limits-not a clock-so actual throughput depends on system-level address/control signal slew rates and board layout.

Does the 70V06L35PF8 support battery backup operation?

Yes, the 70V06L35PF8 supports battery backup operation with data retention down to 2 V, as specified in the datasheet. In this mode, VDD can be maintained at ≥2 V while main power is removed, preserving memory contents without refresh-critical for industrial black-box logging and avionics fault recording applications.

How does the M/S pin affect BUSY signal behavior in the 70V06L35PF8?

When M/S = VIH, the 70V06L35PF8 operates as a master: BUSYL and BUSYR are push-pull outputs that assert LOW during port contention. When M/S = VIL, it operates as a slave: BUSYL and BUSYR become inputs that inhibit writes when driven LOW by a master device-enabling hierarchical multi-device memory expansion without external glue logic.

Can the 70V06L35PF8 be used in a 16-bit data bus configuration?

Yes, the 70V06L35PF8 supports 16-bit expansion using master/slave cascading. Two devices can be configured-one as master (M/S = VIH), one as slave (M/S = VIL)-with BUSY signals coordinating access. This eliminates need for external arbitration logic and maintains full 35 ns speed across the combined 16-bit path, as confirmed in the functional description and block diagram.

What are the valid interrupt mailbox addresses for the 70V06L35PF8?

The 70V06L35PF8 uses fixed interrupt mailbox addresses: left port interrupt flag (INTL) is set by a write to address 3FFE_H from the right port and cleared by reading 3FFE_H; right port interrupt flag (INTR) is set by a write to 3FFF_H from the left port and cleared by reading 3FFF_H. These addresses are hardwired and not configurable.