Renesas 71016S15PHGI

Overview

71016S15PHGI from Renesas Electronics is a 64K × 16-bit (1 Mbit) high-speed CMOS static RAM with 15 ns access time, industrial temperature range (–40°C to +85°C), single 5V supply operation, and TTL-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 data acquisition systems.

For engineers reviewing the 71016S15PHGI datasheet, 71016S15PHGI pinout, 71016S15PHGI application, or 71016S15PHGI equivalent, key selection criteria include industrial-grade timing consistency (tAA ≤ 15 ns), low standby current (ISB1 = 10 µA), byte-selectable write capability, and JEDEC-standard 44-pin TSOP (PHG44) packaging compatibility with legacy SRAM-based designs.

Technical Context

The 71016S15PHGI implements fully static asynchronous architecture-no clocks or refresh required-and uses high-reliability CMOS process technology optimized for deterministic read/write timing across industrial temperatures. Its dual-byte enable logic (BHE/BLE) enables independent 8-bit writes without external gating, while OE-controlled three-state outputs support shared bus arbitration.

Timing is defined by overlapping control signals: CS, WE, OE, BHE, and BLE determine whether the device performs word read, byte read, word write, or byte write operations. All AC parameters-including tRC (15 ns), tOE (8 ns), and tWP (10 ns)-are guaranteed over –40°C to +85°C at VCC = 5.0 V ±10%, with no derating required up to 30 pF load capacitance.

Key Specifications

Pinout & Package

71016S15PHGI is housed in a 44-pin Thin Small Outline Package (TSOP Type II), designated PHG44 per Renesas ordering nomenclature. This JEDEC-standard package supports automated placement and offers thermal and mechanical reliability for industrial PCB environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY62167EV30LL-45ZSXIT and AS6C1008-55ZIN, the 71016S15PHGI uniquely delivers 16-bit width, 5V operation, and 15 ns industrial-grade timing in a single PHG44 package-enabling direct replacement in legacy 5V microcontroller systems without redesigning power or bus interfaces.

Availability

71016S15PHGI is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging subsystems, avionics displays, and test equipment requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 71016S15PHGI 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 specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and infrastructure markets.

The 71016S15PHGI belongs to Renesas' legacy high-speed parallel SRAM product line, designed specifically for deterministic, low-latency memory interfacing in 5V industrial control and instrumentation systems where refresh-free operation and byte-select capability are essential.

FAQ

What is the maximum operating temperature range for the 71016S15PHGI?

The 71016S15PHGI is rated for industrial temperature operation from –40°C to +85°C. This range is fully supported across all guaranteed AC and DC electrical specifications-including 15 ns access time (tAA), 10 µA standby current (ISB1), and TTL-compatible I/O thresholds-without derating or conditional testing.

Does the 71016S15PHGI require a clock or refresh signal to retain data?

No, the 71016S15PHGI is a fully static RAM and requires no clock, refresh cycles, or periodic access to retain data. Its CMOS latch-based memory cells maintain state indefinitely as long as VCC remains within 4.5 V to 5.5 V and ambient temperature stays within –40°C to +85°C. This makes the 71016S15PHGI ideal for safety-critical and low-power applications where deterministic behavior is mandatory.

Can the 71016S15PHGI be used with a 3.3 V microcontroller interface?

The 71016S15PHGI is specified for 5.0 V ±10% operation and has TTL-compatible input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V), but its outputs swing to VOH ≥ 2.4 V (at –4 mA) and VOL ≤ 0.4 V (at 8 mA) under 5V supply. Direct connection to 3.3 V logic is not recommended without level translation, as 5V-tolerant inputs are not guaranteed. For mixed-voltage systems, use the 71016S15PHGI only with 5V-compatible controllers or add bus transceivers.

What package type does the 71016S15PHGI use, and is it RoHS-compliant?

The 71016S15PHGI uses a 44-pin TSOP Type II package (PHG44), per JEDEC MO-141AC. Per Renesas documentation dated June 2020, this part is marked "Green", indicating compliance with RoHS Directive 2011/65/EU and absence of lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE. No exemptions apply.

How does byte enable (BHE/BLE) function during a write operation on the 71016S15PHGI?

During a write cycle with CS and WE asserted low, asserting BHE low enables writing to I/O8–I/O15 (high byte), asserting BLE low enables writing to I/O0–I/O7 (low byte), and asserting both enables full 16-bit word write. The 71016S15PHGI does not require pre-read or masking logic-byte writes occur atomically and independently, preserving unselected byte contents. This behavior is confirmed in the Truth Table (3210 tbl 02) and applies identically across commercial and industrial grades of the 71016S15PHGI.