Renesas 70V06S15PF8

Overview

70V06S15PF8 from IDT (Integrated Device Technology) is a high-speed, 3.3V, 16K × 8 (128 Kbit) true dual-port static RAM with independent left/right ports, 15 ns max access time (commercial grade), TTL-compatible I/O, and on-chip semaphore/interrupt/arbitration logic for inter-processor communication in real-time embedded systems.

For engineers reviewing the 70V06S15PF8 datasheet, 70V06S15PF8 pinout, 70V06S15PF8 application, or 70V06S15PF8 equivalent, key selection criteria include simultaneous asynchronous port access, BUSY/INT/SEM hardware signaling, 68-pin PLCC package compatibility, and industrial-grade timing variants for deterministic multi-CPU memory sharing.

Technical Context

The 70V06S15PF8 implements fully asynchronous dual-port architecture with separate address, data, and control buses per port-enabling concurrent read/write operations to any memory location without external logic. Its on-chip arbitration uses address-match and chip-enable priority detection to assert BUSY flags within 15 ns (tBAA), preventing data collision during contention.

It supports MASTER/SLAVE cascading via M/S pin to expand data width beyond 8 bits, integrates eight hardware semaphores addressed by A0–A2, and provides interrupt flag generation via dedicated mailbox addresses (3FFEh/3FFFh) with 15 ns set/reset timing (tINS/tINR).

Key Specifications

Pinout & Package

70V06S15PF8 is supplied in a 68-pin Plastic Leaded Chip Carrier (PLCC) package with 0.050" lead pitch, body size ≈ 1.18" × 1.18" × 0.16", and surface-mount gull-wing leads. All VDD pins require local decoupling; all VSS pins must be connected to ground plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C024AV-15AXC and R1EX24064ASAS0I#U0, the 70V06S15PF8 uniquely delivers integrated hardware semaphore, interrupt, and BUSY arbitration in a commercial-temp 68-pin PLCC - reducing BOM count and PCB area for tightly coupled dual-CPU designs.

Availability

70V06S15PF8 is available at Aetrix Electronics and suitable for industrial PLC communication modules, avionics interface units, and telecom baseband bridges requiring stable component supply, long-lifecycle support, and verified dual-port timing behavior.

Supply support for 70V06S15PF8 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 interface solutions before its acquisition by Renesas Electronics in 2019.

The 70V06S15PF8 belongs to IDT's legacy dual-port SRAM product line, engineered specifically for deterministic, low-latency inter-processor communication in real-time embedded systems with strict timing predictability requirements.

FAQ

What is the maximum operating frequency supported by the 70V06S15PF8?

The 70V06S15PF8 does not specify a clock frequency but defines timing via access and cycle parameters. With 15 ns max address access time (tAA) and 15 ns read cycle time (tRC), it supports effective bus rates up to approximately 66 MHz in systems where control signal setup/hold and propagation delays are managed. The 70V06S15PF8 operates asynchronously - no system clock is required.

Does the 70V06S15PF8 support battery backup operation?

Yes, the 70V06S15PF8 supports battery backup operation down to 2 V supply voltage while retaining stored data - a documented feature confirmed in the DC characteristics table. This enables seamless transition to backup power during main supply interruption without data loss, critical for mission-critical embedded applications.

How does the M/S pin affect BUSY pin functionality on the 70V06S15PF8?

When M/S = VIH, the 70V06S15PF8 operates as MASTER: BUSYL and BUSYR are push-pull outputs that assert within 15 ns on address/contention match. When M/S = VIL, it operates as SLAVE: BUSYL and BUSYR become inputs that inhibit writes when driven LOW by a MASTER device - enabling hierarchical arbitration in multi-device configurations.

Can the 70V06S15PF8 be used in a single-port configuration?

Yes, the 70V06S15PF8 can operate with only one port active - for example, by holding CEL = VIH (left port disabled) and using only the right port (CER = VIL). In this mode, it functions as a standard 3.3V SRAM with full 16K × 8 capacity, retaining all timing specs and low-power standby modes (ISB1–ISB4) as specified in the datasheet.

What are the valid address ranges for interrupt mailbox operation in the 70V06S15PF8?

The 70V06S15PF8 uses fixed addresses for interrupt mailbox functionality: writing to address 3FFEh (hex) sets the left port interrupt flag (INTL), and reading from 3FFEh clears it; writing to 3FFFh sets the right port flag (INTR), and reading from 3FFFh clears it. These addresses reside within the normal memory map and are accessible only when the respective port is enabled (CEL/CER = VIL).