Renesas 71016S20PHG8

Overview

71016S20PHG8 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 separate upper/lower byte enable pins. It operates from a single 5.0 V ±10% supply, supports commercial temperature range (0°C to +70°C), and is packaged in a 44-pin TSOP Type II (PHG44) for space-constrained embedded memory buffering.

For engineers reviewing the 71016S20PHG8 datasheet, 71016S20PHG8 pinout, 71016S20PHG8 application, or 71016S20PHG8 equivalent, key selection criteria include its 20 ns access time, byte-selectable 16-bit data bus, low 170 mA dynamic current at f_MAX, and dual standby modes (TTL- and CMOS-level chip deselect).

Technical Context

The 71016S20PHG8 implements fully static asynchronous circuitry-no clocks or refresh required-and uses high-reliability CMOS technology for stable operation across voltage (4.5–5.5 V) and temperature (0°C to +70°C). Its architecture includes independent address decoding for 16 address lines (A0–A15), dedicated OE/CS/WE control logic, and dual byte-enable buffers driving high-impedance I/O drivers.

Timing is governed by three distinct control paths: CS-controlled, OE-controlled, and BHE/BLE-controlled write/read cycles. The device guarantees t_AA = 20 ns, t_RC = 20 ns, and t_OE = 10 ns under commercial conditions, with output disable times (t_OHZ, t_CHZ, t_BHZ) ≤ 8 ns-critical for bus arbitration in multi-master systems.

Key Specifications

Pinout & Package

71016S20PHG8 is housed in a JEDEC-standard 44-pin TSOP Type II package (PHG44), 400-mil body width, surface-mount compatible with automated assembly. Pin pitch is 0.8 mm; package height ≤ 1.2 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY62167EV30LL-20ZSXIT and AS6C1008-20TIN, the 71016S20PHG8 uniquely delivers dual-mode standby (45 mA / 10 µA) and guaranteed 20 ns timing at 5 V without I/O tolerance compromises-making it optimal for maintaining legacy 5 V system integrity while minimizing power in active/idle states.

Availability

71016S20PHG8 is available at Aetrix Electronics and suitable for industrial PLC memory buffering, legacy PC BIOS cache extension, medical imaging frame store, and test equipment pattern generation requiring stable component supply and long-term obsolescence management.

Supply support for 71016S20PHG8 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 71016S20PHG8 belongs to Renesas' legacy parallel SRAM product line, designed specifically for high-reliability, pin-compatible replacement of aging 5 V static RAMs in mission-critical industrial and medical equipment.

FAQ

What is the operating voltage range for the 71016S20PHG8?

The 71016S20PHG8 operates from a single 5.0 V supply with a specified range of 4.5 V to 5.5 V. This 10% tolerance aligns with standard TTL and LVTTL system rails, ensuring compatibility with legacy 5 V microcontrollers and FPGAs without external regulation. All DC and AC parameters-including t_AA, ICC, and VOL-are guaranteed across this full voltage window at commercial temperature.

Does the 71016S20PHG8 support byte-wide writes, and how is it implemented?

Yes, the 71016S20PHG8 supports independent byte-wide writes via dedicated BHE (high byte enable) and BLE (low byte enable) inputs. 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. This eliminates need for external byte-mask logic and reduces bus turnaround time in systems performing frequent partial-word updates-such as real-time control registers or display buffer segments.

What package type and pin count does the 71016S20PHG8 use?

The 71016S20PHG8 uses a 44-pin TSOP Type II package (PHG44), a JEDEC-standard surface-mount outline with 0.8 mm pin pitch and 400-mil body width. This compact, low-profile package supports automated reflow assembly and is mechanically and electrically identical to the SOJ variant (PBG44) in pin assignment-enabling board-level interchangeability where footprint allows.

How does the 71016S20PHG8 manage power in standby mode?

The 71016S20PHG8 offers two distinct standby modes: TTL-level standby (CS > VIH) draws 45 mA max, while CMOS-level standby (CS > VHC) draws just 10 µA max. This dual-mode capability allows system designers to select the appropriate low-power state based on bus voltage thresholds-enabling deeper sleep in battery-backed applications without compromising wake-up speed or requiring additional control logic.

Is the 71016S20PHG8 compatible with 5 V TTL logic families without level shifters?

Yes, the 71016S20PHG8 features fully TTL-compatible inputs and outputs: VIH = 2.2 V min, VIL = 0.8 V max, VOL = 0.4 V max at 8 mA, and VOH = 2.4 V min at –4 mA. These specifications guarantee direct, reliable interfacing with standard 5 V TTL, LS-TTL, and 5 V CMOS logic families-eliminating the need for external level translators in legacy system upgrades or retrofits.