Renesas IDT71V416VS15BEGI

Overview

IDT71V416VS15BEGI from Integrated Device Technology is a 4-Mbit (256K × 16) high-speed CMOS static RAM with 15 ns access time, single 3.3 V supply operation, and LVTTL-compatible bidirectional I/O. It features separate byte enable (BHE/BLE), output enable (OE), and chip select (CS) for flexible memory control in embedded systems requiring deterministic timing and low-noise JEDEC-compliant pinout.

For engineers reviewing the IDT71V416VS15BEGI datasheet, IDT71V416VS15BEGI pinout, IDT71V416VS15BEGI application, or IDT71V416VS15BEGI equivalent, key selection criteria include industrial temperature range (–40°C to +85°C), 44-pin SOJ package compatibility, byte-selectable 16-bit data width, and guaranteed 15 ns read cycle time under full commercial/industrial operating conditions.

Technical Context

The IDT71V416VS15BEGI implements fully static asynchronous circuitry-no clocks or refresh required-and uses IDT's high-reliability CMOS process to achieve stable 15 ns address access (tAA) and 15 ns read cycle (tRC) at 3.3 V. Its dual-byte enable architecture enables independent 8-bit writes to high (I/O8–I/O15) and low (I/O0–I/O7) data lanes without external logic.

JEDEC-standard center power/ground pinout (VDD/VSS on pins 12 & 33, 13 & 32) reduces simultaneous switching noise, while OE-controlled 5 ns output enable delay (tOE) supports tight timing margins in burst-access microcontroller interfaces and FPGA-based memory subsystems.

Key Specifications

Pinout & Package

Package: 44-pin, 400-mil plastic SOJ (SO44-1), JEDEC-standard center power/ground layout for noise reduction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed asynchronous SRAM applications.

Compared with CY62167EV30LL-15ZSXI and AS6C4008-15ZIN, the IDT71V416VS15BEGI offers proven industrial reliability in SOJ packaging with JEDEC noise-optimized pinout, while AS6C4008-15ZIN provides true pin-to-pin replacement capability and CY62167EV30LL-15ZSXI extends capacity for future scalability.

Availability

IDT71V416VS15BEGI is available at Aetrix Electronics and suitable for industrial automation, medical imaging, avionics data logging, and FPGA configuration storage requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for IDT71V416VS15BEGI 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

Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and sensor solutions for communications, computing, and industrial markets.

IDT71V416VS15BEGI belongs to IDT's legacy high-speed CMOS SRAM product line, designed specifically for deterministic, low-latency memory subsystems in industrial and embedded systems where asynchronous operation and noise immunity are critical.

FAQ

What is the maximum operating temperature range for IDT71V416VS15BEGI?

IDT71V416VS15BEGI is rated for industrial temperature operation from –40°C to +85°C. This specification is guaranteed across all AC and DC parameters in the datasheet, including 15 ns access time and full standby current (ISB1 ≤ 20 mA). The "I" suffix in the part number explicitly denotes industrial grade qualification, making IDT71V416VS15BEGI suitable for deployment in factory-floor controllers, outdoor telecom equipment, and transportation systems.

Does IDT71V416VS15BEGI require a refresh circuit or clock signal?

No, IDT71V416VS15BEGI is a fully static asynchronous SRAM and requires no clock, refresh controller, or periodic access to retain data. Its internal circuitry operates purely on address and control signal transitions (CS, WE, OE, BHE, BLE). This eliminates timing-critical refresh overhead in microcontroller or FPGA designs, simplifying system architecture and improving determinism - a key advantage of IDT71V416VS15BEGI over DRAM or pseudo-SRAM solutions.

Can IDT71V416VS15BEGI be used with 5 V logic interfaces?

No, IDT71V416VS15BEGI is strictly a 3.3 V device with LVTTL-compatible I/O thresholds (VIH = 2.0 V min, VIL = 0.8 V max) and absolute maximum input voltage of VDD + 0.5 V. Direct connection to 5 V logic will exceed VIH(max) and risk damage. Interfacing with 5 V systems requires level translation - for example, using TXB0108 or SN74AVC4T245 translators - because IDT71V416VS15BEGI has no 5 V tolerant inputs.

What is the function of pins BHE and BLE on IDT71V416VS15BEGI?

BHE (high-byte enable) and BLE (low-byte enable) are active-low control inputs that independently gate write operations to the upper (I/O8–I/O15) and lower (I/O0–I/O7) data bytes. When only BLE is asserted, only the low byte is written; when only BHE is asserted, only the high byte is written. This enables atomic byte-level updates without read-modify-write sequences - a critical capability for IDT71V416VS15BEGI in systems managing mixed-endian data structures or partial register updates.

Is the 44-pin SOJ package of IDT71V416VS15BEGI lead-free and RoHS compliant?

Yes, IDT71V416VS15BEGI carries the "G" suffix in its ordering code (per datasheet Figure 11a), indicating compliance with lead-free and RoHS-6 directives. The "EGI" suffix confirms Pb-free terminations, matte tin plating, and adherence to J-STD-020 moisture sensitivity level 3 (MSL3) handling requirements. This makes IDT71V416VS15BEGI suitable for lead-free reflow assembly processes in industrial and medical manufacturing.