Renesas 70V06L20PF8

Overview

70V06L20PF8 from IDT (Integrated Device Technology) is a high-speed 3.3V 16K × 8 dual-port static RAM with true independent left/right ports, 20 ns maximum access time (industrial grade), TTL-compatible I/O, and on-chip semaphore/interrupt arbitration logic. It enables simultaneous read/write access to the same memory location in real-time embedded systems such as industrial PLCs and telecom line cards.

For engineers reviewing the 70V06L20PF8 datasheet, 70V06L20PF8 pinout, 70V06L20PF8 application, or 70V06L20PF8 equivalent, key selection considerations include its 64-pin TQFP package, master/slave cascading capability for 16-bit+ bus expansion, BUSY/INT flag timing behavior, and industrial temperature support (−40°C to +85°C).

Technical Context

The 70V06L20PF8 implements fully asynchronous dual-port architecture with separate address, control, and data buses per port. Its on-chip arbitration logic resolves contention via BUSY flag assertion (M/S = VIH) or BUSY input synchronization (M/S = VIL), and supports eight hardware semaphores addressed by A0–A2 with dedicated SEM enable pins.

It features two independent CE/R/W/OE controls per port, full 3.3V ±0.3V operation, battery backup data retention down to 2V, and automatic power-down when CE is deasserted. The device supports both R/W-controlled and CE-controlled write cycles with defined tWP, tEW, and tDW timing windows.

Key Specifications

Pinout & Package

64-pin thin quad flatpack (TQFP), package code PNG64, body size 14 mm × 14 mm × 1.4 mm. All VDD pins require connection to 3.3 V 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 CY7C028V-20AXC and AS7C3256A-20TIN, the 70V06L20PF8 uniquely integrates master/slave configuration, hardware semaphore addressing, and interrupt mailbox functionality in a compact 64-pin TQFP - reducing system-level complexity for tightly coupled dual-processor architectures.

Availability

70V06L20PF8 is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, avionics, and medical imaging systems requiring stable component supply, long-term lifecycle assurance, and guaranteed industrial temperature performance.

Supply support for 70V06L20PF8 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 70V06L20PF8 belongs to IDT's legacy dual-port SRAM product line, designed specifically for deterministic inter-processor communication in real-time embedded systems where hardware arbitration and low-latency memory sharing are essential.

FAQ

What is the maximum operating temperature range supported by the 70V06L20PF8?

The 70V06L20PF8 is rated for industrial temperature operation from −40°C to +85°C. This specification is confirmed in the DC Operating Conditions table (Table 5) and applies to all AC timing parameters including tAA = 20 ns max. Operation outside this range may result in timing violations or data retention failure.

Does the 70V06L20PF8 support true simultaneous read operations on both ports to the same memory address?

Yes, the 70V06L20PF8 supports true simultaneous reads to the same memory location on both ports without contention or BUSY assertion. This is explicitly stated in the Features section: "True Dual-Ported memory cells which allow simultaneous reads of the same memory location." BUSY is only asserted during write-write or read-write contention.

How does the M/S pin affect BUSY signal behavior in the 70V06L20PF8?

When M/S = VIH, BUSYL and BUSYR are outputs that assert LOW during address/contention conflicts; when M/S = VIL, they become inputs used to synchronize write operations in slave mode. This dual-role behavior is documented in Note 1 of the Functional Block Diagram and Truth Table IV, enabling flexible master/slave topology configuration.

What are the exact pin counts and functions for power and ground on the 70V06L20PF8 TQFP package?

The 70V06L20PF8 in the 64-pin TQFP (PNG64) package has six VDD pins (pins 8, 17, 26, 37, 48, 59) and eight VSS pins (pins 9, 18, 27, 38, 49, 50, 60, 61), as shown in the Pin Configuration diagram (Figure 3). All VDD pins must connect to 3.3 V; all VSS pins must connect to ground.

Can the 70V06L20PF8 retain data during power loss, and what is the minimum voltage required?

Yes, the 70V06L20PF8 supports battery backup operation with data retention down to 2 V, as specified in the Features list and confirmed in the DC Electrical Characteristics table (Table 6, VDD min = 2.0 V for retention). This allows integration with coin-cell or supercapacitor backup circuits for nonvolatile state preservation.