Renesas 70V06L20PFGI

Overview

70V06L20PFGI from IDT (now Renesas) is a high-speed, 3.3V, 16K × 8 (128 Kbit) true dual-port static RAM with independent left/right ports, 20 ns max access time (industrial grade), TTL-compatible I/O, and on-chip semaphore/interrupt arbitration logic. It enables simultaneous asynchronous reads of the same memory location and supports MASTER/SLAVE cascading for 16-bit+ data bus expansion in real-time inter-processor communication systems.

For engineers reviewing the 70V06L20PFGI datasheet, 70V06L20PFGI pinout, 70V06L20PFGI application, or 70V06L20PFGI equivalent, key selection considerations include industrial temperature support (−40°C to +85°C), dual-port contention resolution via BUSY flag, integrated semaphore signaling across ports, and low standby power (660 µW typ.) with 3.3V ±0.3V single-supply operation.

Technical Context

The 70V06L20PFGI implements fully asynchronous dual-port architecture with separate address, control, and bidirectional I/O buses per port (A0L–A13L/I/O0L–I/O7L and A0R–A13R/I/O0R–I/O7R), enabling concurrent read/write operations without external logic. Its on-chip arbitration logic resolves port conflicts using BUSYL/BUSYR flags and M/S pin configuration for master/slave mode.

It integrates dedicated hardware for semaphore signaling (SEML/SEMR), interrupt generation (INTL/INTR), and automatic power-down via CE-driven standby modes. The device supports battery backup operation down to 2V for data retention and uses CMOS high-performance fabrication for typical active power of 380 mW at 20 ns speed grade.

Key Specifications

Pinout & Package

70V06L20PFGI is packaged in a 64-pin TQFP (PNG64) measuring 14 mm × 14 mm × 1.4 mm, with 48 signal pins (including dual-port I/O, address, control), 6 VDD, and 10 VSS connections. All VDD pins require local decoupling; all VSS pins must be solidly grounded per layout guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C024AV-20AXC and IS61LV25616AL-20TQLI, the 70V06L20PFGI uniquely delivers hardware-enforced port arbitration, integrated semaphores, and MASTER/SLAVE expansion-all within a compact 64-pin TQFP-making it optimal for deterministic real-time inter-processor communication where latency, reliability, and layout simplicity are critical.

Availability

70V06L20PFGI is available at Aetrix Electronics and suitable for industrial automation, avionics data concentrators, and medical imaging subsystems requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.

Supply support for 70V06L20PFGI 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 semiconductor company specializing in high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.

The 70V06L20PFGI belongs to IDT's legacy dual-port SRAM product line, designed specifically for deterministic, low-latency inter-processor communication in real-time embedded systems requiring hardware arbitration and synchronized resource sharing.

FAQ

What is the operating temperature range for the 70V06L20PFGI?

The 70V06L20PFGI is rated for industrial temperature operation from −40°C to +85°C. This specification is confirmed in the DC Operating Conditions table (Table 05) and applies to all electrical characteristics including 20 ns access time, standby current, and BUSY arbitration timing. It is not rated for commercial-only grades (0°C to +70°C) or extended ranges beyond +85°C.

Does the 70V06L20PFGI support battery backup operation?

Yes, the 70V06L20PFGI supports battery backup operation with data retention down to 2 V, as explicitly stated in the Features section and verified in the Absolute Maximum Ratings table (Table 04). This enables nonvolatile memory preservation during main power failure in critical systems like industrial controllers and medical devices.

How does the M/S pin affect BUSY signal behavior on the 70V06L20PFGI?

When M/S = VIH, the 70V06L20PFGI operates as a master: BUSYL and BUSYR are push-pull outputs indicating 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 arbitration in multi-chip configurations.

Can the 70V06L20PFGI perform simultaneous reads from both ports to the same memory address?

Yes, the 70V06L20PFGI supports true simultaneous reads to the same memory location from both ports without contention or BUSY assertion. This is a core feature explicitly highlighted in the "Features" section and confirmed by the Functional Block Diagram and Truth Table I, which show non-contention read operation with CE and OE asserted.

What package type is used for the 70V06L20PFGI?

The 70V06L20PFGI uses a 64-pin thin quad flatpack (TQFP) package, designated PNG64 in IDT documentation. Its dimensions are 14 mm × 14 mm × 1.4 mm, and it is distinct from the 68-pin PLCC variant (PLG68) also offered in the 70V06 family. Pinout matches the PNG64 diagram in Figure 3 of the datasheet.