Renesas IDT71V416VL10PHG

Overview

IDT71V416VL10PHG from Integrated Device Technology is a 4-Mbit (256K × 16) high-speed CMOS static RAM with 10 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 mapping in embedded controllers and industrial data acquisition systems.

For engineers reviewing the IDT71V416VL10PHG datasheet, IDT71V416VL10PHG pinout, IDT71V416VL10PHG application, or IDT71V416VL10PHG equivalent, this device supports fast asynchronous read/write cycles, low-power standby modes, JEDEC-compliant noise-reduced pinout, and industrial temperature operation - critical for real-time control and legacy bus interface designs.

Technical Context

The IDT71V416VL10PHG implements fully static asynchronous circuitry with no clocks or refresh required. Its address decoding supports 18-bit addressing (A0–A17), enabling direct 256K-word access without external logic. The memory array is partitioned into high- and low-byte sections controlled independently by BHE and BLE.

All control inputs (CS, OE, WE, BHE, BLE) are active-low and LVTTL-compatible. Output drivers support 8 mA sink and 4 mA source capability at minimum VDD (3.0 V), with guaranteed 5 ns OE-to-valid timing and 10 ns address access under industrial conditions.

Key Specifications

Pinout & Package

Package: 44-pin, 400-mil Plastic SOJ (SO44-1), JEDEC-standard center-power/ground pinout for reduced switching noise.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT71V416VL10PHG, the CY7C1041DV33-10ZSXI offers identical speed but demands board-level redesign, while the IS61LV25616AL-10TLI matches the SOJ footprint but sacrifices industrial temperature support - making IDT71V416VL10PHG the sole choice for ruggedized 3.3 V SRAM with drop-in SOJ compatibility.

Availability

IDT71V416VL10PHG is available at Aetrix Electronics and suitable for industrial PLCs, legacy bus interface modules, motor drive control register banks, and medical imaging data FIFOs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for IDT71V416VL10PHG 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, and interface solutions for communications, computing, and industrial markets.

IDT71V416VL10PHG belongs to IDT's legacy high-speed CMOS SRAM product line, designed specifically for industrial-grade, asynchronous memory interfacing in resource-constrained embedded systems requiring reliability over decades.

FAQ

What is the operating temperature range for IDT71V416VL10PHG?

IDT71V416VL10PHG 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 10 ns access time and 10 mA full-standby current. The "I" suffix in the part number explicitly denotes industrial qualification, making IDT71V416VL10PHG suitable for deployment in motor drives, factory automation, and outdoor infrastructure where ambient extremes are expected.

Does IDT71V416VL10PHG support true bidirectional data transfer without external transceivers?

Yes, IDT71V416VL10PHG integrates bidirectional I/O buffers on all 16 data lines (I/O0–I/O15). These buffers are LVTTL-compatible and automatically switch between input and output states based on the combination of CS, WE, OE, BHE, and BLE signals - no external direction control or transceivers are needed. The device meets LVTTL voltage thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) at VDD = 3.0 V, ensuring robust interoperability with common microcontrollers and FPGAs.

What package type does IDT71V416VL10PHG use, and is it RoHS compliant?

IDT71V416VL10PHG uses a 44-pin, 400-mil Plastic SOJ (SO44-1) package, as confirmed by the "PH" in its orderable part number. The "G" suffix indicates compliance with lead-free and RoHS-6 requirements. This SOJ variant features JEDEC-standard center-placed VDD and VSS pins to minimize noise, and is compatible with standard infrared and vapor-phase reflow profiles used in industrial PCB assembly.

How does the byte enable functionality work on IDT71V416VL10PHG?

IDT71V416VL10PHG provides independent high-byte enable (BHE) and low-byte enable (BLE) inputs to support 8-bit partial-word writes. When BHE = L and BLE = H, only I/O8–I/O15 are written; when BHE = H and BLE = L, only I/O0–I/O7 are written. Both must be low for full 16-bit word access. This eliminates read-modify-write overhead in register-mapped peripherals and aligns with Intel-style bus protocols used in many industrial controllers.

Is IDT71V416VL10PHG functionally compatible with older IDT71V416 variants like the VS or S versions?

IDT71V416VL10PHG shares identical architecture, pinout, and AC/DC specifications with other IDT71V416 family members (e.g., IDT71V416VS10PHG), differing only in power profile ("L" = low power) and temperature grade ("I" = industrial). All variants use the same 256K×16 organization, SOJ-44 footprint, and LVTTL I/O. The "VL" designation confirms low-power operation (ISB1 ≤ 10 mA), making IDT71V416VL10PHG a direct functional and physical replacement in industrial designs previously using standard-power versions.