Renesas 71V416L15BEGI

Overview

71V416L15BEGI 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, and industrial temperature range (–40°C to +85°C). It features separate byte enable (BHE/BLE), LVTTL-compatible I/Os, and JEDEC-standard center power/ground pinout for noise reduction - deployed in embedded control, industrial PLCs, and legacy bus-based data acquisition systems.

For engineers reviewing the 71V416L15BEGI datasheet, 71V416L15BEGI pinout, 71V416L15BEGI application, or 71V416L15BEGI equivalent, key selection criteria include industrial-grade timing consistency, byte-selectable write capability, SOJ/TSOP/BGA package compatibility, and static asynchronous interface requirements without refresh or clocking.

Technical Context

The 71V416L15BEGI implements fully static asynchronous circuitry - no clocks, no refresh cycles - enabling deterministic read/write timing across its full industrial temperature range. Its dual-byte enable architecture (BHE/BLE) allows independent 8-bit writes to upper or lower data bytes without affecting adjacent memory locations.

Address decoding uses row/column architecture with dedicated A0–A17 inputs (18-bit address space), and all control signals (CS, OE, WE, BHE, BLE) are active-low with LVTTL voltage thresholds. Output enable propagation delay is guaranteed ≤7 ns, supporting tight bus timing in microcontroller- or FPGA-connected memory subsystems.

Key Specifications

Pinout & Package

71V416L15BEGI is packaged in a 48-ball fine-pitch BGA (BEG48) with 0.8 mm ball pitch, 9 mm × 9 mm body, and standard JEDEC MO-245 footprint. Pin 28 is NC or optionally connected to VSS per layout requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 71V416L15BEGI, CY62167EV30LL-45ZSXI trades speed and power for package familiarity, while AS6C4008-15TIN sacrifices data bus width and byte-select capability to meet identical access time - neither offers pin-compatible replacement nor identical functional coverage.

Availability

71V416L15BEGI is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics equipment, avionics displays, and legacy data loggers requiring stable component supply across extended lifecycle programs.

Supply support for 71V416L15BEGI 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 microcontrollers, analog, power, and memory solutions for automotive, industrial, and infrastructure markets.

The 71V416L15BEGI belongs to Renesas' legacy high-speed SRAM product line, designed specifically for timing-critical, asynchronous memory interfacing in industrial and medical systems where reliability and deterministic latency outweigh density or serial interface trends.

FAQ

What is the maximum guaranteed access time for the 71V416L15BEGI?

The 71V416L15BEGI has a maximum guaranteed address access time (tAA) of 15 ns over its full industrial temperature range (–40°C to +85°C) and supply voltage range (3.0 V to 3.6 V). This value is production-tested and applies to all valid address transitions under specified load conditions (30 pF, 50 Ω AC test load), ensuring deterministic timing in real-world embedded designs without derating.

Does the 71V416L15BEGI require a clock or refresh circuit?

No, the 71V416L15BEGI uses fully static CMOS memory cells and asynchronous control logic - it requires no clock input and performs no internal refresh operations. All timing is governed solely by external control signals (CS, OE, WE, BHE, BLE), making it ideal for simple microcontroller or FPGA interfaces where timing predictability and firmware simplicity are priorities.

What is the function of pins BHE and BLE on the 71V416L15BEGI?

BHE (Bus High Enable) and BLE (Bus Low Enable) are active-low, independent byte-select controls on the 71V416L15BEGI. When asserted, BHE enables writes to I/O8–I/O15 (upper byte); BLE enables writes to I/O0–I/O7 (lower byte). Both can be asserted simultaneously for full 16-bit writes, or individually to perform atomic 8-bit updates - eliminating need for read-modify-write sequences in register-mapped hardware.

Is the 71V416L15BEGI RoHS-compliant and halogen-free?

Yes, the 71V416L15BEGI is a green-part variant (denoted by "G" in the part number suffix) and complies with RoHS Directive 2011/65/EU and JEDEC JS709A for halogen content. Its BEG48 package uses lead-free solderable terminations and meets Renesas' Material Declaration Standard for restricted substances, supporting environmentally compliant manufacturing.

Can the 71V416L15BEGI operate with 2.5 V or 5 V supplies?

No, the 71V416L15BEGI is strictly a 3.3 V-only device, with absolute maximum VDD of +4.6 V and recommended operating range of 3.0 V to 3.6 V. It is not 5 V tolerant, and applying 2.5 V will fail to meet VIH/VIL thresholds or guarantee timing. LVTTL-compatible I/Os require VDD = 3.3 V for correct logic level interpretation and drive strength.