Renesas 71016S20PHG

Overview

71016S20PHG from Renesas Electronics is a 64K × 16-bit (1,048,576-bit), high-speed CMOS static RAM with 20 ns read/write cycle time, TTL-compatible bidirectional I/O, and dual byte enable (BHE/BLE) for flexible 8-bit or 16-bit data access - used in legacy industrial controllers, embedded instrumentation buffers, and real-time data acquisition systems.

For engineers reviewing the 71016S20PHG datasheet, 71016S20PHG pinout, 71016S20PHG application, or 71016S20PHG equivalent, key selection criteria include its 5 V single-supply operation, 44-pin TSOP-II package, industrial temperature range (–40°C to +85°C), and asynchronous static architecture requiring no clocks or refresh.

Technical Context

The 71016S20PHG implements fully static asynchronous memory control logic with independent chip select (CS), output enable (OE), write enable (WE), and byte enable (BHE/BLE) inputs - enabling precise timing control over word, high-byte, or low-byte read/write operations without external latching. Its address decoding supports full 16-bit addressing (A0–A15) across a 64K depth.

It uses high-reliability CMOS process technology to achieve low standby current (ISB1 = 10 µA at CMOS-level CS deassertion) and fast output enable response (tOE = 10 ns max), while maintaining TTL-compatible voltage thresholds (VIH = 2.2 V min, VIL = 0.8 V max) and bidirectional I/O drive strength (IOH = –4 mA, IOL = 8 mA).

Key Specifications

Pinout & Package

71016S20PHG is housed in a 44-pin Thin Small Outline Package (TSOP Type II), designated PHG44 per Renesas ordering nomenclature. This JEDEC-standard package features gull-wing leads, 0.8 mm lead pitch, and a body size of 10.16 mm × 18.42 mm - optimized for automated SMT assembly and thermal performance in compact industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY62167EV30LL-45ZSXIT and AS6C1008-20TIN, the 71016S20PHG uniquely delivers 64K × 16-bit density, 5 V TTL compatibility, byte-select capability, and industrial temperature support in a single 44-pin TSOP - making it irreplaceable in legacy 5 V embedded memory designs without architectural change.

Availability

71016S20PHG is available at Aetrix Electronics and suitable for industrial PLCs, legacy test equipment upgrades, and real-time data acquisition systems requiring stable component supply and long-term lifecycle continuity.

Supply support for 71016S20PHG 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 71016S20PHG belongs to Renesas' legacy high-speed CMOS SRAM product line, designed specifically for 5 V embedded systems requiring deterministic, clockless memory access with industrial-grade reliability.

FAQ

What is the operating voltage range for the 71016S20PHG?

The 71016S20PHG operates from a single 5.0 V supply with a tolerance of ±10%, meaning its valid range is 4.5 V to 5.5 V. This matches standard TTL and older 5 V microprocessor bus requirements. All DC and AC specifications - including VIH, VIL, ICC, and timing parameters - are guaranteed across this range and the full industrial temperature span (–40°C to +85°C). The 71016S20PHG does not support 3.3 V or mixed-voltage operation.

Does the 71016S20PHG require a clock or refresh signal?

No, the 71016S20PHG is a fully static RAM and requires neither a clock nor periodic refresh. Its internal circuitry retains data indefinitely as long as power is applied and CS remains asserted (low). This eliminates timing-critical refresh overhead and makes the 71016S20PHG ideal for simple, deterministic bus interfaces in microcontroller- or FPGA-based systems where predictability is essential.

What is the function of BHE and BLE pins on the 71016S20PHG?

BHE (Byte High Enable) and BLE (Byte Low Enable) are independent active-low control inputs that allow selective access to the upper (I/O8–I/O15) or lower (I/O0–I/O7) byte of the 16-bit data bus. When only one is asserted, the 71016S20PHG performs an 8-bit read or write without affecting the other byte - enabling efficient partial-word updates and reducing bus traffic in systems with mixed 8/16-bit peripherals.

Is the 71016S20PHG pin-compatible with faster speed grades like 71016S15PHG?

Yes, the 71016S20PHG is pin-compatible and functionally identical to other speed grades (e.g., 71016S12PHG, 71016S15PHG) in the same PHG44 TSOP package. Only timing parameters differ - all electrical characteristics, pin functions, voltage levels, and package dimensions are identical. A board designed for 71016S20PHG can accept faster variants without layout or firmware changes, though timing margins must be re-verified.

What package type does the 71016S20PHG use, and is it RoHS-compliant?

The 71016S20PHG uses a 44-pin TSOP Type II package (Renesas code PHG44), with gull-wing leads and 0.8 mm pitch. Per Renesas' 2020 datasheet revision, it is a "Green" device - meaning it complies with RoHS Directive 2011/65/EU and is lead-free, halogen-free, and compliant with Renesas' hazardous substance restrictions. No exemptions apply.