Renesas 71V30L25TFG8

Overview

71V30L25TFG8 from Renesas Electronics (formerly IDT) is a high-speed, low-power 1K × 8 dual-port static RAM with independent left/right ports, on-chip arbitration logic, interrupt flags, and 25 ns max read cycle time. It operates from a single 3.3 V ±0.3 V supply, supports industrial-grade temperature range (−40°C to +85°C), and enables asynchronous port-to-port communication in real-time embedded systems such as network packet buffers and DSP co-processor memory interfaces.

For engineers reviewing the 71V30L25TFG8 datasheet, 71V30L25TFG8 pinout, 71V30L25TFG8 application, or 71V30L25TFG8 equivalent, key selection considerations include its 25 ns access timing, battery-backed data retention down to 2 V (L version only), BUSY/INT signal behavior for contention resolution, and compatibility with TTL-level control signals in 64-pin STQFP packaging.

Technical Context

The 71V30L25TFG8 implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port-enabling simultaneous read/write access to any memory location without internal synchronization overhead. Its arbitration logic uses BUSYL/BUSYR push-pull outputs to stall conflicting accesses, while INTL/INTR flags provide hardware signaling for inter-processor mailbox communication at fixed addresses 3FEh and 3FFh.

It features automatic power-down via chip enable (CE), delivering 1 µA typical standby current (ISB3) when both ports are disabled with CMOS-level inputs. The device retains data at 2 V with ≤1 mA retention current, and all DC/AC parameters-including tAA = 25 ns, tRC = 25 ns, and VOL = 0.4 V-are specified over the full industrial temperature range and 3.3 V ±0.3 V supply.

Key Specifications

Pinout & Package

71V30L25TFG8 is housed in a 64-pin STQFP (PPG64) package with 0.5 mm pitch, body dimensions of 10 mm × 10 mm × 1.4 mm, and exposed thermal pad (not electrically connected). Pin numbering follows JEDEC-standard top-view orientation with pin 1 at top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C024AV-25AXC and AS7C31025B-25JCIN, the 71V30L25TFG8 uniquely integrates hardware arbitration and interrupt signaling in a compact 64-pin package-reducing BOM count and eliminating timing-critical FPGA logic for inter-processor coordination.

Availability

71V30L25TFG8 is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging subsystems, and network infrastructure equipment requiring stable component supply, long-lifecycle support, and guaranteed industrial-temperature performance.

Supply support for 71V30L25TFG8 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

Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.

The 71V30L25TFG8 belongs to Renesas' legacy dual-port SRAM product line, originally developed by IDT to address deterministic, low-latency shared-memory requirements in real-time multiprocessing systems.

FAQ

What is the maximum operating speed of the 71V30L25TFG8?

The 71V30L25TFG8 has a guaranteed maximum read cycle time (tRC) of 25 ns and address access time (tAA) of 25 ns at 3.3 V and −40°C to +85°C. This corresponds to a theoretical peak bandwidth of 40 million operations per second per port under ideal conditions. All AC timing parameters are production-tested and fully specified across the industrial temperature range.

Does the 71V30L25TFG8 support battery backup operation?

Yes, the 71V30L25TFG8 ('L' suffix) supports battery backup data retention at voltages as low as 2.0 V, with typical retention current of 100–1000 µA depending on temperature. This feature is exclusive to the 'L' (low-power) variant and is not available in the 'S' (standard-power) versions like 71V30S25TFG8.

How does BUSY arbitration work on the 71V30L25TFG8?

The 71V30L25TFG8 asserts BUSYL or BUSYR (push-pull, non-tristatable) when both ports attempt simultaneous access to the same memory address. The earlier access wins; the later port's write is internally gated, and its BUSY output goes low to stall external logic. Arbitration priority is determined by input setup timing (tAPS ≥ 5 ns required).

Can the 71V30L25TFG8 be used in commercial-temperature applications?

Yes-the 71V30L25TFG8 is rated for industrial temperature (−40°C to +85°C), which fully encompasses the commercial range (0°C to +70°C). Its specifications, including 25 ns timing and 1 µA standby current, are guaranteed across the full industrial range, making it suitable for both commercial and extended-temperature deployments without derating.

What package type is used for the 71V30L25TFG8?

The 71V30L25TFG8 uses a 64-pin STQFP (Small Outline Quad Flat Package) with code PPG64, measuring 10 mm × 10 mm × 1.4 mm and featuring 0.5 mm lead pitch. This RoHS-compliant, green-part package supports standard SMT reflow processes and provides adequate thermal dissipation for its 375 mW typical active power consumption.