Renesas 70V06S15PF

Overview

70V06S15PF from IDT (Integrated Device Technology) is a high-speed 3.3V 16K × 8 dual-port static RAM with true independent left/right port access, 15 ns max read cycle time (commercial grade), TTL-compatible I/O, and on-chip semaphore/interrupt arbitration logic. It enables real-time inter-processor communication in embedded control systems requiring deterministic memory coherency.

For engineers reviewing the 70V06S15PF datasheet, 70V06S15PF pinout, 70V06S15PF application, or 70V06S15PF equivalent, key selection criteria include bus contention resolution via BUSY flag timing (tBAA ≤ 15 ns), master/slave cascading support (M/S pin), and low-power standby operation (ISB3 ≤ 0.2 mA).

Technical Context

The 70V06S15PF implements fully asynchronous dual-port architecture with separate address, data, and control buses per port (A0L–A13L/I/O0L–I/O7L/R/WL/CEL/OEL on left; A0R–A13R/I/O0R–I/O7R/R/WR/CER/OER on right). Its hardware arbitration includes push-pull BUSY outputs (not open-drain), interrupt flags (INTL/INTR) tied to fixed addresses (3FFE/3FFF), and eight semaphore registers accessed via A0–A2 with SEM enable.

It supports battery backup retention down to 2V, operates on single 3.3V ±0.3V supply, and integrates automatic power-down per port via CE assertion. The device uses CMOS high-performance fabrication and requires no external logic for 16-bit-or-wider bus expansion when configured in MASTER/SLAVE topology using the M/S pin.

Key Specifications

Pinout & Package

68-pin Plastic Leaded Chip Carrier (PLCC) package with 0.95″ × 0.95″ body size and 0.17″ height. All VDD pins require connection to 3.3V supply; all VSS pins must be grounded.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C024AV-15AXC, the 70V06S15PF offers smaller footprint and built-in cascading, while IDT70V25L15PF delivers seamless capacity scaling within identical mechanical and electrical constraints.

Availability

70V06S15PF is available at Aetrix Electronics and suitable for industrial PLC communication, telecom line card buffering, and avionics data concentrators requiring stable component supply across extended production lifecycles.

Supply support for 70V06S15PF 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 timing, memory, and interface solutions for communications, computing, and industrial markets.

The IDT70V06 family was designed specifically for deterministic inter-processor communication in real-time embedded systems, emphasizing hardware arbitration, low-latency access, and robust signal integrity in electrically noisy environments.

FAQ

What is the maximum operating frequency supported by the 70V06S15PF?

The 70V06S15PF does not specify a clock frequency because it is an asynchronous SRAM. Its performance is defined by timing parameters: tRC (read cycle time) is 15 ns max, enabling effective operation up to ~66 MHz in tightly controlled systems. Actual system throughput depends on address setup (tAS = 0 ns), hold (tAH), and output enable timing (tAOE ≤ 10 ns), all verified under commercial temperature and 3.3V supply conditions for the 70V06S15PF.

How does the M/S pin affect BUSY signal behavior in the 70V06S15PF?

When M/S = VIH, the 70V06S15PF operates as a master: BUSYL and BUSYR are push-pull outputs that assert LOW during address 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. This configuration enables hierarchical arbitration in multi-device systems without external logic, a core design feature of the 70V06S15PF.

Can the 70V06S15PF retain data during power loss, and what voltage threshold applies?

Yes, the 70V06S15PF supports battery backup operation with guaranteed data retention down to 2.0 V supply voltage. This is specified in the functional description and confirmed in DC characteristics tables. Below 2.0 V, data retention is not assured. The 70V06S15PF achieves this using low-leakage CMOS design and does not require external capacitors or backup batteries beyond standard system-level implementation.

What are the valid address ranges for interrupt mailbox functionality in the 70V06S15PF?

The 70V06S15PF uses fixed addresses for interrupt mailbox operation: writing to address 3FFE (hex) sets the left-port interrupt flag (INTL), and writing to address 3FFF (hex) sets the right-port flag (INTR). Reading those same addresses clears the respective flags. These locations reside within the 16K address space and are reserved exclusively for interrupt signaling when the feature is enabled - a hardware-defined behavior unique to the 70V06S15PF architecture.

Is the 70V06S15PF pin-compatible with other members of the IDT70V06 family?

Yes, the 70V06S15PF shares identical pinout and package (68-pin PLCC) with all speed grades and temperature variants in the IDT70V06 family, including 70V06L15PF (industrial), 70V06S20PF, and 70V06L20PF. Electrical timing and DC parameters differ per grade, but PCB layout, firmware, and interconnect remain unchanged - enabling drop-in replacement for qualification or thermal margin adjustments without redesign.