Renesas 71016S15PHGI8

Overview

71016S15PHGI8 from Renesas Electronics is a 64K × 16-bit (1,048,576-bit) high-speed CMOS static RAM with 15 ns access time, TTL-compatible I/O, single 5.0 V ±10% supply operation, and industrial temperature range (–40°C to +85°C). It features separate byte enable (BHE/BLE), output enable (OE), and chip select (CS) controls, and is used in real-time embedded controllers requiring deterministic, non-refreshed memory access.

For engineers reviewing the 71016S15PHGI8 datasheet, 71016S15PHGI8 pinout, 71016S15PHGI8 application, or 71016S15PHGI8 equivalent, key selection criteria include its 15 ns industrial-grade read cycle time, bidirectional TTL-compatible data bus, dual-byte write capability, and JEDEC-standard 44-pin TSOP Type II package compatibility.

Technical Context

The 71016S15PHGI8 implements fully static asynchronous circuitry-no clocks or refresh required-and uses high-reliability CMOS technology for stable operation across industrial thermal stress. Its address decoding supports full 16-bit word access or independent 8-bit upper/lower byte writes via dedicated BHE and BLE inputs.

Timing control is decoupled across three enable domains: CS governs device selection and standby current (ISB1 = 10 µA), OE enables output drivers with 8 ns tOE, and WE coordinates write cycles with 10 ns tWP minimum pulse width. All I/O pins are bidirectional and electrically compatible with TTL logic levels at VCC = 5.0 V ±10%.

Key Specifications

Pinout & Package

71016S15PHGI8 is housed in a 44-pin TSOP Type II (PHG44) package per JEDEC MO-141BA, with gull-wing leads and 0.8 mm lead pitch. The package supports automated surface-mount assembly and provides thermal performance suitable for industrial ambient conditions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY62167EV30LL-45ZSXIT and AS6C1008-15TIN, the 71016S15PHGI8 uniquely delivers 15 ns industrial-grade performance in a TSOP-44 package with native 5 V TTL I/O-enabling drop-in replacement in existing 5 V controller designs without voltage translation or layout revision.

Availability

71016S15PHGI8 is available at Aetrix Electronics and suitable for industrial automation, legacy microprocessor upgrades, and avionics subsystems requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature qualification.

Supply support for 71016S15PHGI8 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 71016S15PHGI8 belongs to Renesas' legacy high-speed CMOS SRAM product line, designed specifically for deterministic, low-latency memory expansion in 5 V industrial control and embedded computing platforms.

FAQ

What is the maximum operating frequency supported by the 71016S15PHGI8?

The 71016S15PHGI8 does not operate on a clock signal-it is an asynchronous SRAM. Its maximum effective throughput is determined by its 15 ns read cycle time (tRC), enabling up to 66.7 MHz sustained random access in industrial temperature conditions. This timing is guaranteed across –40°C to +85°C and 4.5–5.5 V supply range without derating.

Does the 71016S15PHGI8 require external refresh circuitry?

No, the 71016S15PHGI8 is a fully static RAM and requires no refresh cycles or external refresh circuitry. Its internal latching design maintains data indefinitely as long as power is applied and CS remains asserted, making it ideal for real-time systems where deterministic timing is critical.

Can the 71016S15PHGI8 be used with modern 3.3 V microcontrollers?

The 71016S15PHGI8 operates exclusively from a 5.0 V ±10% supply and has TTL-compatible I/O thresholds-not 3.3 V logic compatible. Direct interface with 3.3 V processors requires level translation. For native 3.3 V systems, consider alternatives like the CY62167EV30LL series, though at reduced speed.

What is the meaning of "PHGI8" in the part number 71016S15PHGI8?

In 71016S15PHGI8, "PHG" denotes 44-pin TSOP Type II package (PHG44), "I" indicates industrial temperature grade (–40°C to +85°C), and "8" specifies tape-and-reel packaging. The "S15" suffix confirms 15 ns access time. This full code ensures precise mechanical, thermal, and packaging alignment for production use.

How does the byte enable functionality work on the 71016S15PHGI8?

The 71016S15PHGI8 uses two independent inputs-BHE (high byte enable) and BLE (low byte enable)-to control 8-bit write operations. Asserting only BLE writes to I/O₀–I/O₇; asserting only BHE writes to I/O₈–I/O₁₅; asserting both performs a full 16-bit word write. This eliminates read-modify-write overhead in partial-data updates.