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

Renesas R1LV0816ASB-7SI#B0

Name: R1LV0816ASB-7SI#B0
Brand: Renesas
SKU: R1LV0816ASB-7SI#B0
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: R1LV0816ASB-7SI#B0

Manufacturer:: Renesas

Category:: Memory

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

Datasheet:: R1LV0816ASB-7SI#B0.pdf

Description:: IC SRAM 8MBIT PARALLEL 44TSOP II

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Product details

Overview

R1LV0816ASB-7SI#B0 from Renesas Electronics is an 8Mb low-power static RAM organized as 524,288 words × 16 bits, fabricated in 0.15 µm CMOS/TFT technology, operating from a single 2.4–3.6 V supply with 70 ns access time and −40 to +85 °C industrial temperature range - used for battery-backed memory in portable instrumentation and embedded controllers.

For engineers reviewing the R1LV0816ASB-7SI#B0 datasheet, R1LV0816ASB-7SI#B0 pinout, R1LV0816ASB-7SI#B0 application, or R1LV0816ASB-7SI#B0 equivalent, key selection criteria include standby current (1.2 µA typ. at 3.0 V), TSOP(II) 44-pin package compatibility, byte-select write capability via LB#/UB#, TTL-compatible I/O, and no-refresh operation for reliable data retention during power loss.

Technical Context

This LPSRAM implements a synchronous word-addressable memory array with independent upper/lower byte enable control (LB#/UB#), enabling partial-word writes without external logic. Its architecture eliminates refresh circuitry and clock inputs, relying solely on address, chip select (CS#), write enable (WE#), and output enable (OE#) timing.

Operation supports three-state outputs with OR-tie capability, TTL-level input thresholds (VIH = 2.2 V min. at VCC = 2.4–2.7 V), and data retention down to 1.5 V supply with ≤20 µA current at +85 °C - critical for backup-mode operation in energy-constrained systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory density	8 Mbit (524,288 × 16-bit organization)
Supply voltage	2.4–3.6 V - supports dual-voltage system integration and battery operation
Access time	70 ns - defines maximum read/write cycle rate for real-time data buffering
Standby current	1.2 µA typ. at 3.0 V, +25 °C - enables multi-year battery life in always-on backup mode
Operating temperature	−40 to +85 °C - qualified for industrial-grade embedded control and telemetry
Input/output interface	TTL-compatible - interoperates directly with legacy microcontrollers and FPGAs without level-shifting
Data retention voltage	1.5–3.6 V - maintains stored data during brown-out or backup power transitions

Pinout & Package

Packaged in a 11.76 mm × 18.41 mm 44-pin plastic TSOP(II) (44P3F, normal-bend type), this device uses standard surface-mount footprint compatible with automated PCB assembly and high-density layout.

Pin/Terminal	Circuit Role	Design Meaning
A0–A18	Address input	19-bit word address bus (524,288 words)
DQ0–DQ15	Data I/O	16-bit bidirectional data bus with three-state control
CS#	Chip select	Active-low enable for full device activation or data retention entry
WE#	Write enable	Active-low control for write cycles; combined with LB#/UB# for byte-select writes
OE#	Output enable	Active-low control for output buffer tri-state; prevents bus contention
LB#, UB#	Byte enable	Independent active-low controls for lower/upper 8-bit data lanes
VCC, VSS	Power/Ground	Single 2.4–3.6 V supply pair; no separate I/O or core rails

Key Features

Feature	Design Value
No refresh required	Eliminates external refresh controller or timer overhead in microcontroller-based systems
Low standby current	1.2 µA typical enables >10-year battery backup using coin-cell sources
Byte-select write capability	LB#/UB# pins allow independent 8-bit writes - reduces bus traffic and write-cycle overhead
TTL-compatible I/O	Direct interface with legacy 5 V-tolerant or 3.3 V microcontrollers without level translators
Common data I/O	Reduces pin count and simplifies PCB routing versus separate input/output buses

Applications

Portable Medical Monitors	Industrial PLC Data Logging
Use Scenario: Continuous ECG waveform capture with local storage during brief battery-only operation. IC Role / Device Role / Timing Role: Nonvolatile buffer holding 30+ seconds of sampled data before host transfer. Use Value: 1.2 µA standby current extends disposable battery life; 70 ns access supports real-time sampling at 10 kSPS.	Use Scenario: Storing sensor calibration tables and runtime event logs in factory-floor programmable logic controllers. IC Role / Device Role / Timing Role: Fast-access SRAM for firmware-resident lookup tables and cyclic data buffers. Use Value: Byte-select writes minimize bus arbitration latency; −40 to +85 °C rating ensures reliability in unconditioned enclosures.
Smart Meter Firmware Cache	Automotive Diagnostic Tools
Use Scenario: Caching metering algorithm parameters and tariff schedules during power interruptions. IC Role / Device Role / Timing Role: Battery-backed memory preserving configuration across main power loss events. Use Value: Data retention down to 1.5 V allows seamless operation during brown-outs; TSOP(II) package fits compact meter PCBs.	Use Scenario: Temporary storage of OBD-II diagnostic session data and fault code history in handheld scan tools. IC Role / Device Role / Timing Role: Low-latency scratchpad memory for protocol translation and response buffering. Use Value: 70 ns access time meets real-time CAN message processing deadlines; TTL compatibility avoids level-shifter components.

Portable Medical Monitors

Industrial PLC Data Logging

Use Scenario: Continuous ECG waveform capture with local storage during brief battery-only operation.

IC Role / Device Role / Timing Role: Nonvolatile buffer holding 30+ seconds of sampled data before host transfer.

Use Value: 1.2 µA standby current extends disposable battery life; 70 ns access supports real-time sampling at 10 kSPS.

Use Scenario: Storing sensor calibration tables and runtime event logs in factory-floor programmable logic controllers.

IC Role / Device Role / Timing Role: Fast-access SRAM for firmware-resident lookup tables and cyclic data buffers.

Use Value: Byte-select writes minimize bus arbitration latency; −40 to +85 °C rating ensures reliability in unconditioned enclosures.

Smart Meter Firmware Cache

Automotive Diagnostic Tools

Use Scenario: Caching metering algorithm parameters and tariff schedules during power interruptions.

IC Role / Device Role / Timing Role: Battery-backed memory preserving configuration across main power loss events.

Use Value: Data retention down to 1.5 V allows seamless operation during brown-outs; TSOP(II) package fits compact meter PCBs.

Use Scenario: Temporary storage of OBD-II diagnostic session data and fault code history in handheld scan tools.

IC Role / Device Role / Timing Role: Low-latency scratchpad memory for protocol translation and response buffering.

Use Value: 70 ns access time meets real-time CAN message processing deadlines; TTL compatibility avoids level-shifter components.

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-power SRAM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IS61LV25616AL-10TLI	10 ns faster access (60 ns), 3.3 V only supply (3.0–3.6 V), same 44-pin TSOP(II) footprint	Higher speed suits FPGA co-processor interfaces; narrower voltage range limits battery flexibility	Select when system requires sub-70 ns timing and stable 3.3 V rail is guaranteed
AS6C4008-70TIN	Same 70 ns access, 2.7–3.6 V supply, 48-pin TSOP(I) package - not pin-compatible	Requires PCB redesign due to different pin count and layout; higher standby current (5 µA)	Consider only if Renesas TSOP(II) footprint is unavailable and board revision is feasible

Compared with IS61LV25616AL-10TLI and AS6C4008-70TIN, the R1LV0816ASB-7SI#B0 offers broader voltage tolerance (2.4–3.6 V) and lowest standby current (1.2 µA), making it optimal for battery-critical designs where pin compatibility and ultra-low power dominate over marginal speed gains.

Availability

R1LV0816ASB-7SI#B0 is available at Aetrix Electronics and suitable for portable medical monitors, industrial PLC data logging, smart meter firmware caching, and automotive diagnostic tools requiring stable component supply across extended product lifecycles.

Supply support for R1LV0816ASB-7SI#B0 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.

The R1LV0816ASB family was designed for low-voltage, battery-operated memory applications demanding zero-refresh operation, minimal standby power, and industrial temperature resilience - targeting portable instrumentation and embedded control systems.

FAQ

What is the minimum supply voltage required for data retention in R1LV0816ASB-7SI#B0?

The R1LV0816ASB-7SI#B0 maintains stored data down to 1.5 V supply voltage under data retention conditions (CS# or LB#/UB# held high), with retention current ≤20 µA at +85 °C. This enables reliable operation during brown-out events or coin-cell backup scenarios without external voltage supervision circuitry.

Does R1LV0816ASB-7SI#B0 require a clock signal or refresh circuitry?

No, the R1LV0816ASB-7SI#B0 is a static RAM and operates without clocks or refresh cycles. Its architecture relies solely on address, CS#, WE#, OE#, and byte-enable signals - eliminating timing-critical refresh overhead and simplifying integration with microcontrollers lacking dedicated SRAM controllers.

Can R1LV0816ASB-7SI#B0 perform partial-word writes, and how is this controlled?

Yes, the R1LV0816ASB-7SI#B0 supports partial-word writes using LB# (lower byte) and UB# (upper byte) control pins. Asserting LB# low while keeping UB# high writes only DQ0–DQ7; asserting UB# low while LB# remains high writes only DQ8–DQ15 - enabling efficient 8-bit updates without full 16-bit bus transactions.

What is the maximum operating temperature range specified for R1LV0816ASB-7SI#B0?

The R1LV0816ASB-7SI#B0 is rated for continuous operation from −40 °C to +85 °C ambient temperature, meeting industrial-grade environmental requirements. This specification is validated per the Absolute Maximum Ratings and Recommended Operating Conditions tables in the official Renesas datasheet REJ03C0387-0100.

Is R1LV0816ASB-7SI#B0 pin-compatible with the R1LV0816ASB-5SI variant?

Yes, the R1LV0816ASB-7SI#B0 shares identical pinout, package (44-pin TSOP(II)), and functional interface with the R1LV0816ASB-5SI, differing only in access time (70 ns vs. 55 ns) and supply voltage range (2.4–3.6 V vs. 2.7–3.6 V). System-level replacement is possible if timing margins accommodate the slower access.

R1LV0816ASB-7SI#B0 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

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

Packaging:: Bulk

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM

Memory Size:: 8Mbit

Memory Organization:: 512K x 16

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 70ns

Access Time:: 70 ns

Voltage - Supply:: 2.4V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 44-TSOP II

R1LV0816ASB-7SI#B0 FAQ

1.How can I place an order for R1LV0816ASB-7SI#B0 through Aetrix?

Please submit a Request for Quotation (RFQ) for R1LV0816ASB-7SI#B0 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 R1LV0816ASB-7SI#B0 reliable?

The price and inventory of R1LV0816ASB-7SI#B0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1LV0816ASB-7SI#B0 is usually 5 days.

3.What payment methods are accepted for R1LV0816ASB-7SI#B0?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LV0816ASB-7SI#B0 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for R1LV0816ASB-7SI#B0?

R1LV0816ASB-7SI#B0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your R1LV0816ASB-7SI#B0 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 R1LV0816ASB-7SI#B0?

For technical support, including R1LV0816ASB-7SI#B0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LV0816ASB-7SI#B0 requirements.

6.How does Aetrix verify that R1LV0816ASB-7SI#B0 is sourced from the original manufacturer or authorized distributors?

All R1LV0816ASB-7SI#B0 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 R1LV0816ASB-7SI#B0 meets industry standards.

7.What is the process for return or replacement of R1LV0816ASB-7SI#B0?

All R1LV0816ASB-7SI#B0 units undergo pre-shipment inspection (PSI). If there is an issue with R1LV0816ASB-7SI#B0, 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 R1LV0816ASB-7SI#B0 part is unused and in its original packaging.

Return procedure for R1LV0816ASB-7SI#B0:

1.Submit a request within 90 days.

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

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