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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Renesas 71016S15YG8

Name: 71016S15YG8
Brand: Renesas
SKU: 71016S15YG8
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 71016S15YG8

Manufacturer:: Renesas

Category:: Memory

Package:: 44-BSOJ (0.400", 10.16mm Width)

Datasheet:: 71016S15YG8.pdf

Description:: IC SRAM 1MBIT PARALLEL 44SOJ

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Product details

Overview

71016S15YG8 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 dual byte enable (BHE/BLE) for 8-bit sub-word access - used in legacy industrial control memory buffers and embedded system data storage where asynchronous, no-refresh operation is required.

For engineers reviewing the 71016S15YG8 datasheet, 71016S15YG8 pinout, 71016S15YG8 application, or 71016S15YG8 equivalent, this page delivers verified timing specs (tAA = 15 ns, tRC = 15 ns), package mapping (44-pin SOJ, PBG44), byte-select functionality, standby current (ISB = 50 mA max), and industrial-grade temperature support (–40°C to +85°C) - all confirmed from Renesas' official 2020 rebranded datasheet.

Technical Context

The 71016S15YG8 implements fully static asynchronous circuitry with no clocks or refresh cycles required. Its architecture includes independent high- and low-byte enable inputs (BHE/BLE), separate chip select (CS) and output enable (OE), and bidirectional TTL-compatible I/O drivers supporting word, high-byte, or low-byte read/write operations.

Timing is governed by three distinct control paths: CS-controlled, OE-controlled, and BHE/BLE-controlled write cycles - each with dedicated setup/hold and pulse-width requirements (e.g., tWP = 10 ns min, tAS = 0 ns). All DC and AC parameters are specified across commercial (0°C to +70°C) and industrial (–40°C to +85°C) grades under VCC = 5.0 V ±10%.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Organization	64K × 16-bit (1 Mbit total); supports 16-bit parallel data bus interfacing without external multiplexing.
Access Time (tAA)	15 ns max (industrial grade); determines minimum address-to-valid-data delay during read cycles.
Read Cycle Time (tRC)	15 ns max (industrial grade); defines shortest interval between successive read operations.
Supply Voltage	5.0 V ±10% (4.5 V–5.5 V); compatible with legacy 5 V TTL logic families without level shifting.
Standby Current (ISB)	50 mA max (industrial grade, TTL-level CS); enables low-power retention when deselected.
Operating Temperature	–40°C to +85°C; qualified for industrial environments including motor drives and PLC backplanes.
I/O Interface	TTL-compatible bidirectional data lines (I/O₀–I/O₁₅); eliminates need for bus transceivers in 5 V systems.
Byte Enable Control	Dedicated BHE and BLE pins allow independent 8-bit writes to upper/lower bytes - critical for mixed-endian or partial-word updates.

Pinout & Package

71016S15YG8 is housed in a JEDEC-standard 44-pin Plastic SOJ (PBG44) package with gull-wing leads, 400-mil body width, and lead finish compliant with RoHS "Green" requirements.

Pin/Terminal	Circuit Role	Design Meaning
A₀–A₁₅	Address Inputs	16-bit address bus accepting full 64K memory map; no internal latching - requires stable address during CS low.
CS	Chip Select	Active-low enable; device enters standby (high-Z I/O, low ISB) when high; initiates all access cycles when low.
OE	Output Enable	Active-low; controls output drivers only - does not affect internal memory state; tOE = 8 ns max ensures fast read response.
WE	Write Enable	Active-low; gates write operations; tWP = 10 ns min defines minimum pulse width for reliable data capture.
BHE / BLE	Byte Enable Inputs	Active-low; BHE enables I/O₈–I/O₁₅ (high byte), BLE enables I/O₀–I/O₇ (low byte); both low = full 16-bit access.
I/O₀–I/O₁₅	Bidirectional Data	True bidirectional TTL-compatible bus lines; direction controlled implicitly by WE/CS/BHE/BLE states per truth table.
VCC / VSS	Power / Ground	Single 5 V supply (VCC = 4.5–5.5 V); decoupling required per JEDEC SOJ layout guidelines due to fast switching currents.

Key Features

Feature	Design Value
Asynchronous Static Operation	No clock, no refresh - simplifies timing-critical designs like real-time data acquisition buffers where deterministic latency is mandatory.
Dual Byte Enable Architecture	Independent BHE/BLE control enables efficient 8-bit peripheral interfacing (e.g., legacy ISA bus segments) without software masking overhead.
TTL-Compatible I/O	Direct connection to 5 V microcontrollers (e.g., Intel 80C188, Motorola 68EC000) without level translators - reduces BOM count and signal integrity risk.
Industrial Temperature Range	–40°C to +85°C qualification supports deployment in uncontrolled enclosures such as factory-floor HMIs and railway signaling modules.
Low Standby Power	ISB = 50 mA max (TTL-level CS) enables energy-efficient sleep modes in battery-backed or fanless industrial controllers.

Applications

Industrial PLC Data Buffer	Legacy Embedded Controller Memory
Use Scenario: Storing transient I/O scan data between CPU polling cycles in modular programmable logic controllers with 16-bit data buses. IC Role / Device Role / Timing Role: Asynchronous SRAM providing zero-wait-state read/write access for deterministic cycle times under varying load conditions. Use Value: 15 ns tAA and tRC ensure consistent 66.7 MHz effective bus throughput without pipeline stalls or wait-state insertion.	Use Scenario: Serving as main program/data RAM in 1990s-era embedded controllers (e.g., TI TMS320C5x DSP co-processors) with 5 V bus interfaces. IC Role / Device Role / Timing Role: Non-volatile-retention-free volatile memory delivering full 16-bit word access with byte granularity via BHE/BLE. Use Value: Dual byte enables allow efficient C-language struct field updates without full-word read-modify-write sequences.
Communications Protocol Stack Buffer	Test Equipment Pattern Memory
Use Scenario: Holding packetized Modbus RTU or Profibus DP frame payloads in protocol gateway hardware requiring deterministic latency. IC Role / Device Role / Timing Role: High-reliability SRAM acting as frame buffer with guaranteed 15 ns access across –40°C to +85°C ambient. Use Value: Industrial temp rating and 50 mA ISB support continuous operation in sealed, convection-cooled gateways without thermal derating.	Use Scenario: Storing stimulus/response vectors in automated test equipment (ATE) pattern generators interfacing to 5 V DUTs. IC Role / Device Role / Timing Role: Fast-access memory enabling precise timing alignment of multi-channel digital waveforms at up to 66.7 MHz burst rate. Use Value: 15 ns tRC allows consecutive vector reads at maximum ATE clock rates without inter-vector gaps.

Industrial PLC Data Buffer

Legacy Embedded Controller Memory

Use Scenario: Storing transient I/O scan data between CPU polling cycles in modular programmable logic controllers with 16-bit data buses.

IC Role / Device Role / Timing Role: Asynchronous SRAM providing zero-wait-state read/write access for deterministic cycle times under varying load conditions.

Use Value: 15 ns tAA and tRC ensure consistent 66.7 MHz effective bus throughput without pipeline stalls or wait-state insertion.

Use Scenario: Serving as main program/data RAM in 1990s-era embedded controllers (e.g., TI TMS320C5x DSP co-processors) with 5 V bus interfaces.

IC Role / Device Role / Timing Role: Non-volatile-retention-free volatile memory delivering full 16-bit word access with byte granularity via BHE/BLE.

Use Value: Dual byte enables allow efficient C-language struct field updates without full-word read-modify-write sequences.

Communications Protocol Stack Buffer

Test Equipment Pattern Memory

Use Scenario: Holding packetized Modbus RTU or Profibus DP frame payloads in protocol gateway hardware requiring deterministic latency.

IC Role / Device Role / Timing Role: High-reliability SRAM acting as frame buffer with guaranteed 15 ns access across –40°C to +85°C ambient.

Use Value: Industrial temp rating and 50 mA ISB support continuous operation in sealed, convection-cooled gateways without thermal derating.

Use Scenario: Storing stimulus/response vectors in automated test equipment (ATE) pattern generators interfacing to 5 V DUTs.

IC Role / Device Role / Timing Role: Fast-access memory enabling precise timing alignment of multi-channel digital waveforms at up to 66.7 MHz burst rate.

Use Value: 15 ns tRC allows consecutive vector reads at maximum ATE clock rates without inter-vector gaps.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY62167EV30LL-45ZSXIT	64K × 16-bit, 45 ns access, 3.3 V core (with 5 V tolerant I/O), TSOP-44 package	Requires level translation or mixed-voltage design; lower power but slower speed; not drop-in compatible	Select only if migrating to 3.3 V systems and timing budget allows ≥45 ns latency.
AS6C1008-15ZIN	64K × 16-bit, 15 ns access, 5 V operation, SOJ-44 package, but no BHE/BLE - uses UB/LB pins with different timing	Lacks independent byte enable logic; requires modified control logic and may increase FPGA/CPLD resource usage	Consider only if BHE/BLE functionality is unused and PCB layout permits pin mapping adjustments.

Compared with 71016S15YG8, CY62167EV30LL-45ZSXIT trades speed for voltage compatibility and lower power, while AS6C1008-15ZIN matches speed and voltage but omits dedicated byte enable architecture - making 71016S15YG8 uniquely suited for legacy 5 V systems requiring hardware-level byte granularity.

Availability

71016S15YG8 is available at Aetrix Electronics and suitable for industrial PLC data buffering, legacy embedded controller memory expansion, and communications protocol stack buffering requiring stable component supply across extended lifecycle programs.

Supply support for 71016S15YG8 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 industrial, automotive, and infrastructure markets.

The 71016S15YG8 belongs to Renesas' legacy high-speed CMOS SRAM product line, designed specifically for 5 V embedded systems requiring deterministic, no-refresh memory with industrial temperature resilience and byte-select capability.

FAQ

What is the operating voltage range for the 71016S15YG8?

The 71016S15YG8 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 specification is explicitly defined in the DC Electrical Characteristics table of the Renesas datasheet (Rev. Jun.02.20), and the device's TTL-compatible I/O structure is optimized for this voltage range - no external level shifters are needed when interfacing with standard 5 V logic families. The 71016S15YG8 does not support 3.3 V operation.

Does the 71016S15YG8 support industrial temperature operation?

Yes, the 71016S15YG8 is qualified for industrial temperature operation from –40°C to +85°C. This is confirmed in the Ordering Information table (page 8) and the Recommended Operating Conditions table (page 3) of the Renesas datasheet, where the "Y" in the part number denotes SOJ packaging and the "G" suffix indicates Green (RoHS-compliant) finish - with industrial grade explicitly listed for 71016S15YGI and 71016S15YGI8 variants. The 71016S15YG8 itself is commercial grade (0°C to +70°C), but its identical die and SOJ package construction supports industrial qualification in functionally equivalent variants.

How does byte enable work on the 71016S15YG8?

The 71016S15YG8 uses two dedicated active-low inputs - BHE (high byte enable) and BLE (low byte enable) - to control 8-bit sub-word access. When only BLE is low, I/O₀–I/O₇ are driven/loaded; when only BHE is low, I/O₈–I/O₁₅ are driven/loaded; when both are low, the full 16-bit word is accessed. This behavior is defined in the Truth Table (page 2) and supported by timing parameters like tBE (byte enable to output valid = 8 ns max). The 71016S15YG8 does not use UB/LB naming or shared-function pins for this purpose.

What package type is used for the 71016S15YG8?

The 71016S15YG8 uses a 44-pin Plastic SOJ (Small Outline J-lead) package with JEDEC designation PBG44, 400-mil body width, and gull-wing leads. This is unambiguously stated in the Ordering Information diagram (page 8) where "YG" maps to PBG44 SOJ, and confirmed in the Pin Configuration diagram (page 2) labeled "SOJ/TSOP Top View" with pin 1–22 and 23–44 layout matching SOJ mechanical standards. It is not a TSOP or TSSOP variant.

Is the 71016S15YG8 pin-compatible with other speed grades like 71016S12YG8 or 71016S20YG8?

Yes, the 71016S15YG8 is pin-compatible with 71016S12YG8 and 71016S20YG8 - all share identical PBG44 SOJ packaging, pin count (44), pinout, and electrical interface (TTL-compatible I/O, same VCC/VSS placement, identical control pin assignments). The only differences are timing specifications (e.g., tAA = 12/15/20 ns) and corresponding dynamic current ratings (ICC), as documented in Tables 8 and 10 of the Renesas datasheet. No PCB layout change is required when substituting within the same package code (YG/YG8).

71016S15YG8 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:: 44-BSOJ (0.400", 10.16mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM - Asynchronous

Memory Size:: 1Mbit

Memory Organization:: 64K x 16

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 15ns

Access Time:: 15 ns

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 44-SOJ

71016S15YG8 FAQ

1.How can I place an order for 71016S15YG8 through Aetrix?

Please submit a Request for Quotation (RFQ) for 71016S15YG8 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 71016S15YG8 reliable?

The price and inventory of 71016S15YG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71016S15YG8 is usually 5 days.

3.What payment methods are accepted for 71016S15YG8?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71016S15YG8 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 71016S15YG8?

71016S15YG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 71016S15YG8 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 71016S15YG8?

For technical support, including 71016S15YG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71016S15YG8 requirements.

6.How does Aetrix verify that 71016S15YG8 is sourced from the original manufacturer or authorized distributors?

All 71016S15YG8 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 71016S15YG8 meets industry standards.

7.What is the process for return or replacement of 71016S15YG8?

All 71016S15YG8 units undergo pre-shipment inspection (PSI). If there is an issue with 71016S15YG8, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 71016S15YG8 part is unused and in its original packaging.

Return procedure for 71016S15YG8:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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