Renesas 71V416L15BEG8

Overview

71V416L15BEG8 from Renesas Electronics is a 4-Mbit (256K × 16) low-power, high-speed CMOS static RAM with 15 ns access time, single 3.3 V supply operation, LVTTL-compatible I/O, and JEDEC-standard center power/ground pinout for noise reduction. It serves as a non-refreshing, fully static asynchronous memory buffer in embedded controllers, industrial PLCs, and legacy bus-based systems requiring deterministic timing.

For engineers reviewing the 71V416L15BEG8 datasheet, 71V416L15BEG8 pinout, 71V416L15BEG8 application, or 71V416L15BEG8 equivalent, key selection criteria include its 15 ns read cycle time, byte-enable-controlled 16-bit word access, industrial temperature range (–40°C to +85°C), and 48-ball BGA (BEG48) package with 9 mm × 9 mm footprint.

Technical Context

The 71V416L15BEG8 implements a fully static asynchronous architecture with no clocks or refresh required. Its dual-byte enable (BHE/BLE) and separate output enable (OE) support independent high- and low-byte reads/writes, while chip select (CS) and write enable (WE) provide standard SRAM control logic compatible with legacy microprocessor buses.

It uses high-reliability CMOS fabrication optimized for low dynamic and static power: ISB1 (full standby current) is 10 µA max at VDD = 3.6 V, and ICC (dynamic operating current) is 160 mA max at fMAX under industrial conditions. All inputs and I/Os are LVTTL-compatible with VIH = 2.0 V min and VIL = 0.8 V max.

Key Specifications

Pinout & Package

71V416L15BEG8 is housed in a 48-ball grid array (BEG48) package with 9 mm × 9 mm body size and 0.8 mm ball pitch. Pin assignments follow the BEG48 mechanical layout defined in Renesas documentation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed static RAM applications.

Compared with CY62167EV30LL-15ZSXI and AS6C4008-15TIN, the 71V416L15BEG8 uniquely balances industrial temperature operation, ultra-low 10 µA standby current, and BEG48 BGA packaging - making it optimal for thermally demanding, power-aware embedded systems where footprint and reliability are prioritized over raw density or package flexibility.

Availability

71V416L15BEG8 is available at Aetrix Electronics and suitable for industrial automation, medical instrumentation, and legacy bus-based embedded systems requiring stable component supply and long-term lifecycle support.

Supply support for 71V416L15BEG8 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.

The 71V416L15BEG8 belongs to Renesas' legacy high-speed SRAM product line, designed specifically for deterministic, low-power, asynchronous memory needs in industrial and communications equipment where reliability and timing predictability are critical.

FAQ

What is the maximum operating frequency supported by the 71V416L15BEG8?

The 71V416L15BEG8 does not operate on a clock; it is an asynchronous SRAM. Its maximum effective throughput is governed by its 15 ns read cycle time (tRC), enabling up to ~66.7 MHz sustained random-access operation in ideal conditions. Actual system bandwidth depends on bus protocol overhead, address setup/hold timing, and controller latency - not a fixed clock frequency.

Does the 71V416L15BEG8 require external refresh circuitry?

No, the 71V416L15BEG8 is a fully static RAM and requires no refresh cycles or external refresh circuitry. Its CMOS latch-based memory cells retain data indefinitely as long as VDD is applied and within specification - a key advantage over DRAM in deterministic real-time systems.

Can the 71V416L15BEG8 be used with 5 V logic interfaces?

No, the 71V416L15BEG8 is strictly a 3.3 V LVTTL device. Its absolute maximum input voltage is VDD + 0.5 V (≤ 4.1 V), and VIH minimum is 2.0 V - incompatible with standard 5 V TTL logic levels. Interfacing with 5 V systems requires level translation on all address, control, and data lines.

What is the meaning of "L" in the part number 71V416L15BEG8?

The "L" in 71V416L15BEG8 denotes the low-power variant of the IDT71V416 family. Compared to the "S" (standard power) version, the "L" grade reduces dynamic operating current (ICC) and full standby current (ISB1) - e.g., ISB1 is 10 µA max for 71V416L15BEG8 versus 20 µA max for the "S" variant - without sacrificing speed or functionality.

Is the 71V416L15BEG8 RoHS compliant and halogen-free?

Yes, the 71V416L15BEG8 is a green-part device meeting RoHS Directive 2011/65/EU and is halogen-free per Renesas' material declarations. The "G" in the package code (BEG8) explicitly indicates compliance with lead-free and hazardous-substance restrictions for industrial and medical applications.