Renesas IDT71016S12YGI

Overview

IDT71016S12YGI from Integrated Device Technology is a 64K × 16-bit (1 Mbit) high-speed CMOS static RAM with 12 ns access time, TTL-compatible I/O, and dual byte enable (BHE/BLE) for flexible 8-bit or 16-bit data bus interfacing in embedded controllers and industrial instrumentation.

For engineers reviewing the IDT71016S12YGI datasheet, IDT71016S12YGI pinout, IDT71016S12YGI application, or IDT71016S12YGI equivalent, key selection considerations include its 5 V single-supply operation, 44-pin SOJ package, industrial temperature range (–40°C to +85°C), and asynchronous static architecture requiring no clocks or refresh.

Technical Context

The IDT71016S12YGI implements fully static asynchronous memory control using independent Chip Select (CS), Output Enable (OE), Write Enable (WE), and byte-select logic (BHE/BLE). Its architecture supports word, high-byte, and low-byte read/write operations without internal timing dependencies.

All inputs meet TTL voltage thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V), outputs drive ±8 mA loads, and bidirectional I/O buffers are internally terminated to ensure signal integrity across 0–85°C. Standby current drops to 10 mA under CMOS-level chip deselect (CS > VHC).

Key Specifications

Pinout & Package

44-pin Plastic SOJ (SO44-1) package per JEDEC MS-025, 400-mil body width, gull-wing leads, lead-free (G suffix) construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT71016S12YGI, both alternatives operate at 3.3 V and lack native 5 V tolerance-making them unsuitable for legacy 5 V industrial backplanes without interface redesign, whereas IDT71016S12YGI delivers guaranteed 12 ns performance at 5 V with industrial-grade reliability in the same SOJ footprint.

Availability

IDT71016S12YGI is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, avionics data logging, and test equipment requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for IDT71016S12YGI 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) was a fabless semiconductor company specializing in timing, memory, and interface solutions before its acquisition by Renesas in 2019. It pioneered high-performance CMOS SRAM architectures for real-time systems.

IDT71016S12YGI belongs to IDT's legacy 71000-series high-speed SRAM family, designed specifically for deterministic, zero-refresh memory interfacing in industrial control, instrumentation, and embedded computing where 5 V compatibility and sub-15 ns latency are mandatory.

FAQ

What is the operating temperature range specified for the IDT71016S12YGI?

The IDT71016S12YGI is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the "Recommended Operating Temperature and Supply Voltage" table (Table 3210 tbl 04) and applies to all AC/DC electrical parameters in the datasheet. The 'Y' in the part number explicitly denotes industrial grade, distinguishing it from commercial-grade variants.

Does the IDT71016S12YGI require a clock signal or periodic refresh cycles?

No, the IDT71016S12YGI uses fully static CMOS circuitry and requires neither a clock nor refresh cycles. Its operation is purely asynchronous and governed solely by CS, WE, OE, and byte-enable timing-enabling deterministic latency and eliminating hidden timing overhead in real-time embedded systems.

What package type does the IDT71016S12YGI use, and is it lead-free?

IDT71016S12YGI uses a 44-pin Plastic SOJ (SO44-1) package with 400-mil body width. The 'G' suffix in the ordering code confirms RoHS-compliant, lead-free construction per IDT's hazardous substance policy documented in the October 2008 datasheet revision.

Can the IDT71016S12YGI be used with a 3.3 V microcontroller interface?

No-the IDT71016S12YGI is strictly a 5 V device (VCC = 4.5–5.5 V) with TTL-compatible I/O thresholds. Driving its inputs from 3.3 V logic violates VIH minimum (2.2 V) margin under worst-case conditions, and its outputs exceed 3.3 V logic high limits. Level translation is mandatory for interoperability.

How does the byte enable functionality (BHE/BLE) operate in the IDT71016S12YGI?

In the IDT71016S12YGI, BHE controls I/O8–I/O15 (high byte) and BLE controls I/O0–I/O7 (low byte). When only one is active low (with CS and WE asserted), the corresponding 8-bit lane performs read/write while the other remains high-impedance-enabling true 8-bit access on a 16-bit bus without external demultiplexing.