Renesas 71V416L10YGI8

Overview

71V416L10YGI8 from Renesas Electronics is a 4-Mbit (256K × 16) low-power, high-speed CMOS static RAM with 10 ns access time, single 3.3 V supply operation, LVTTL-compatible I/O, and industrial temperature range (–40°C to +85°C). It serves as a non-refreshing, asynchronous memory buffer in real-time control systems requiring deterministic timing.

For engineers reviewing the 71V416L10YGI8 datasheet, 71V416L10YGI8 pinout, 71V416L10YGI8 application, or 71V416L10YGI8 equivalent, key selection criteria include byte-enable-controlled 16-bit data access, JEDEC-standard SOJ pinout, low-standby current (10 mA), and compatibility with legacy 3.3 V LVTTL bus interfaces.

Technical Context

This device implements fully static asynchronous circuitry-no clocks or refresh required-and uses dual byte enable (BHE/BLE) for independent high- and low-byte access. Its address decoding supports 18-bit addressing (A0–A17) to resolve 256K words, with all inputs and outputs meeting LVTTL voltage thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V).

Timing is governed by three independent control paths: chip select (tACS = 10 ns), output enable (tOE = 5 ns), and byte enable (tBE = 5 ns), enabling flexible read/write sequencing without bus contention. The SOJ package features center-power/ground pinout to minimize switching noise during high-frequency I/O transitions.

Key Specifications

Pinout & Package

71V416L10YGI8 is housed in a 44-pin, 400-mil plastic SOJ (PBG44) package with JEDEC-standard center-power/ground pinout to reduce simultaneous switching noise. Pin 1 is located at the top-left corner of the top view, with pins numbered counter-clockwise.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY62167EV30LL-10ZSXI and AS6C4008-10TIN, the 71V416L10YGI8 uniquely balances industrial SOJ packaging, 10 ns access, and 10 mA standby current-making it optimal for space-constrained, thermally demanding control systems where pinout compatibility and deterministic timing are prioritized over ultra-low quiescent power.

Availability

71V416L10YGI8 is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, medical imaging subsystems, and avionics sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 71V416L10YGI8 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 71V416L family was designed specifically for high-reliability, asynchronous memory applications in industrial control and communications equipment where deterministic timing, low power, and JEDEC-standard packaging are mandatory.

FAQ

What is the maximum operating frequency supported by the 71V416L10YGI8?

The 71V416L10YGI8 does not operate on a clock; it is an asynchronous SRAM. Its 10 ns access time supports effective bus frequencies up to 100 MHz in systems with zero wait-state timing. Maximum sustained throughput depends on system-level cycle time (tRC = 10 ns), not a clock signal-making it suitable for microcontroller, FPGA, and ASIC interfaces without clock domain constraints. The 71V416L10YGI8 achieves this using fully static CMOS design with no internal timing generator.

Does the 71V416L10YGI8 require external refresh circuitry?

No, the 71V416L10YGI8 is a true static RAM and requires no refresh circuitry, clocks, or periodic access to retain data. Its fully static asynchronous architecture maintains data indefinitely as long as VDD remains within specification (3.0–3.6 V) and ambient temperature stays within the industrial range (–40°C to +85°C). This eliminates refresh overhead and timing uncertainty-critical for safety-critical and real-time deterministic applications where the 71V416L10YGI8 is commonly deployed.

Can the 71V416L10YGI8 be used with 5 V logic systems?

No, the 71V416L10YGI8 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-making it incompatible with 5 V TTL or CMOS logic levels. Direct connection to 5 V systems risks damage or unreliable operation. If interfacing with 5 V controllers is required, a bidirectional level translator (e.g., TXB0108) must be used. The 71V416L10YGI8's I/O structure is optimized for 3.3 V signaling integrity, not mixed-voltage operation.

What is the function of the BHE and BLE pins on the 71V416L10YGI8?

The BHE (High Byte Enable) and BLE (Low Byte Enable) pins on the 71V416L10YGI8 provide independent gating of the upper (I/O8–I/O15) and lower (I/O0–I/O7) data bytes during read and write operations. When asserted low, each enables its respective byte path; both low enables full 16-bit word access. This eliminates the need for external byte masking logic or software bit manipulation-reducing interface complexity in microcontrollers and FPGAs. The 71V416L10YGI8 uses these pins to support efficient 8-bit peripheral interfacing without bus turnaround delays.

Is the 71V416L10YGI8 RoHS compliant and halogen-free?

Yes, the 71V416L10YGI8 is RoHS compliant and halogen-free, as confirmed by Renesas' "Green Parts" designation in the ordering information (suffix 'G' or 'GI'). The 'I' in YGI8 indicates industrial temperature grade, and the '8' denotes tape-and-reel packaging-both consistent with Renesas' green manufacturing standards. Material declarations and compliance documentation are available through Renesas' official product page for the 71V416L10YGI8, supporting environmental compliance in industrial and medical end equipment.