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Renesas R1LV0408DSP-5SR#S0
- Part No.:
- R1LV0408DSP-5SR#S0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- -
- Datasheet:
-
R1LV0408DSP-5SR#S0.pdf
- Description:
- STANDARD SRAM, 512KX8
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R1LV0408DSP-5SR#S0 from Renesas Electronics is a 4-Mbit static RAM organized as 512-kword × 8-bit, fabricated using 0.15 µm CMOS and TFT technologies. It operates from a single 3 V supply (2.7–3.6 V), delivers 55 ns max access time, consumes only 0.1 µA typical standby current at +25°C, and supports battery backup operation in 32-pin SOP packaging.
For engineers reviewing the R1LV0408DSP-5SR#S0 datasheet, R1LV0408DSP-5SR#S0 pinout, R1LV0408DSP-5SR#S0 application, or R1LV0408DSP-5SR#S0 equivalent, key selection criteria include low-voltage data retention (VDR = 2.0 V), TTL-compatible I/O, common data bus architecture, and industrial temperature range (−40°C to +85°C) support.
Technical Context
The R1LV0408DSP-5SR#S0 implements a full asynchronous SRAM architecture with independent address decoding (A0–A18), three-state bidirectional I/O (I/O0–I/O7), and standard control signals (CS#, OE#, WE#). Its timing is defined by equal access and cycle times (tRC = tAA = tCO = 55 ns max), with output enable and chip select both contributing to low-Z assertion (tOLZ = 5 ns, tLZ = 10 ns).
It features dual-mode write operation-supporting both OE#-clocked and OE#-low-fixed configurations-and guarantees data retention down to 2.0 V VCC with ICCDR ≤ 2.5 µA at +25°C. Standby current ISB1 is specified at 2.5 µA (max) for the −5S% speed grade within the R temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 4 Mbit (512 kwords × 8 bits) - provides byte-wide data interface compatible with 8-bit microcontrollers and legacy bus systems. |
| Access time | 55 ns (max) - enables direct interfacing with 18 MHz system clocks without wait states in most embedded controllers. |
| Supply voltage | 2.7–3.6 V - supports single-supply operation across wide industrial input ranges, including partially discharged batteries. |
| Standby current | 2.5 µA (max) at +25°C - ensures multi-year battery life in backup memory applications such as real-time clock registers or configuration storage. |
| Data retention VCC | 2.0 V minimum - allows reliable data hold during brown-out conditions or ultra-low-power sleep modes. |
| Operating temperature | −40°C to +85°C - qualified for industrial-grade deployment in automotive body control modules, PLCs, and network edge devices. |
| I/O interface | TTL-compatible inputs/outputs - eliminates level-shifting requirements when interfacing with legacy 5 V logic families operating at 3.3 V tolerance. |
Pinout & Package
Package: 32-pin plastic SOP (32P2M-A), 525-mil width, surface-mount, JEDEC-standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address input | 19-bit address bus supporting full 512-kword addressing; no multiplexing required. |
| I/O0–I/O7 | Data input/output | Common bidirectional data bus with three-state output control; shares pins for read/write. |
| CS# | Chip select | Active-low enable controlling device activation; must be low for valid read/write cycles. |
| OE# | Output enable | Active-low signal gating output drivers; high-Z when deasserted, even if CS# is active. |
| WE# | Write enable | Active-low write strobe; combined with CS# to initiate write; determines write vs. read mode. |
| VCC | Power supply | Primary 2.7–3.6 V supply; decoupling capacitor placement critical near Pin 1 (VCC) and Pin 32 (VSS). |
| VSS | Ground | Reference ground plane connection; Pins 16 and 32 are dedicated VSS terminals for noise reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Single 3 V supply operation | Eliminates need for dual-rail power design; simplifies PCB layout and reduces BOM count in portable and battery-powered systems. |
| Low standby power dissipation | Typical 3 µW (0.1 µA @ 3 V) enables use in always-on memory retention circuits without compromising battery lifetime. |
| Direct TTL compatibility | All inputs accept VIH ≥ 2.2 V and VIL ≤ 0.6 V; outputs drive VOH ≥ 2.4 V / VOL ≤ 0.4 V into 2.1 mA loads - interoperable with legacy 5 V logic without translators. |
| Battery backup capability | Valid data retention at VCC = 2.0 V with ICCDR ≤ 2.5 µA ensures nonvolatile behavior during main power loss in RTC, metering, and alarm systems. |
| Equal access and cycle times | tRC = tAA = 55 ns simplifies timing budgeting in synchronous bus interfaces and avoids complex wait-state generation logic. |
Applications
| Industrial Data Logger | Automotive Body Control Module |
|---|---|
Use Scenario: Continuous recording of sensor readings (temperature, pressure, voltage) with periodic power cycling. IC Role / Device Role / Timing Role: Nonvolatile buffer memory holding last-known state and recent logs during MCU sleep or main power interruption. Use Value: 2.0 V data retention threshold and 2.5 µA standby current enable >5-year battery-backed operation without refresh circuitry. | Use Scenario: Storing door lock status, mirror position, seat memory, and lighting presets across ignition cycles. IC Role / Device Role / Timing Role: Fast-access, low-power SRAM interfaced directly to 8-bit automotive microcontroller buses. Use Value: 55 ns access time supports real-time response to CAN/LIN command bursts; −40°C to +85°C rating ensures reliability under hood conditions. |
| Medical Infusion Pump Controller | POS Terminal Configuration Storage |
Use Scenario: Maintaining therapy parameters, dose history, and error logs during AC power loss or battery swap. IC Role / Device Role / Timing Role: Battery-backed SRAM preserving critical treatment data with deterministic retention behavior. Use Value: Guaranteed data hold at 2.0 V VCC and <2.5 µA ICCDR eliminates risk of parameter corruption during brief power gaps. | Use Scenario: Holding merchant-specific settings (tax rates, receipt formats, language, peripheral mappings) across firmware updates and reboots. IC Role / Device Role / Timing Role: Byte-addressable, pin-compatible replacement for legacy 28C64/6264-style SRAMs in legacy POS hardware. Use Value: TTL-compatible I/O and 32-pin SOP footprint allow drop-in upgrade path without board redesign or driver changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61LV25616AL-10TLI | 16-bit bus (256K × 16), 10 ns access, 3.3 V only, 48-pin TSOP | Higher bandwidth but wider bus and incompatible pinout; requires PCB redesign. | Select only when 16-bit data path and faster timing are mandatory and layout change is acceptable. |
| AS6C4008-55ZIN | 4-Mbit (512K × 8), 55 ns access, 2.7–3.6 V, 32-pin SOP, −40°C to +85°C | Functionally identical organization, timing, and package; same pinout and electrical specs per datasheet. | Valid second-source option with identical footprint, timing, and industrial temp support - suitable for supply chain diversification. |
Compared with R1LV0408DSP-5SR#S0, the AS6C4008-55ZIN offers true pin-to-pin and functional equivalence for industrial SRAM replacement, while the IS61LV25616AL-10TLI trades compatibility for higher throughput and narrower voltage range - requiring system-level redesign.
Availability
R1LV0408DSP-5SR#S0 is available at Aetrix Electronics and suitable for industrial data loggers, automotive body control modules, medical infusion pump controllers, and POS terminal configuration storage requiring stable component supply across extended temperature and low-power constraints.
Supply support for R1LV0408DSP-5SR#S0 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 R1LV0408D Series was designed specifically for low-voltage, low-power, battery-backed SRAM applications in space-constrained industrial and automotive systems where reliability across temperature extremes is critical.
FAQ
What is the maximum access time specification for R1LV0408DSP-5SR#S0?
The R1LV0408DSP-5SR#S0 has a maximum access time of 55 ns, measured as address access time (tAA), chip select access time (tCO), and read cycle time (tRC). This value is guaranteed over the full industrial temperature range (−40°C to +85°C) and supply voltage range (2.7 V to 3.6 V), making it suitable for real-time embedded systems requiring deterministic memory latency. The R1LV0408DSP-5SR#S0 achieves this performance using Renesas's 0.15 µm CMOS process.
Does R1LV0408DSP-5SR#S0 support battery backup operation?
Yes, the R1LV0408DSP-5SR#S0 supports battery backup operation with guaranteed data retention down to VCC = 2.0 V and standby current ICCDR ≤ 2.5 µA at +25°C. Its low-voltage retention capability enables seamless transition to backup power during main supply failure, commonly used in RTC modules, energy meters, and alarm systems. The R1LV0408DSP-5SR#S0 maintains data integrity without external refresh circuitry under these conditions.
What package type is used for R1LV0408DSP-5SR#S0?
The R1LV0408DSP-5SR#S0 uses a 32-pin plastic SOP (Small Outline Package), designated as 32P2M-A with 525-mil width. This JEDEC-standard surface-mount package features gull-wing leads, is RoHS-compliant, and supports reflow soldering. Its pinout matches industry-standard 32-pin SRAM footprints, enabling compatibility with existing PCB layouts designed for similar 512K × 8 devices.
Is R1LV0408DSP-5SR#S0 TTL-compatible?
Yes, the R1LV0408DSP-5SR#S0 is fully TTL-compatible: inputs accept VIH ≥ 2.2 V and VIL ≤ 0.6 V, while outputs drive VOH ≥ 2.4 V (at −1.0 mA) and VOL ≤ 0.4 V (at 2.1 mA). This allows direct interfacing with legacy 5 V TTL logic families without level shifters, simplifying integration in mixed-voltage systems. All control and data signals on the R1LV0408DSP-5SR#S0 adhere to these thresholds.
What is the operating temperature range for R1LV0408DSP-5SR#S0?
The R1LV0408DSP-5SR#S0 is rated for industrial operation from −40°C to +85°C, indicated by the "R" suffix in its ordering code. This range is validated per the Absolute Maximum Ratings and DC/AC Characteristics tables in the official Renesas datasheet REJ03C0310-0100. The R1LV0408DSP-5SR#S0 maintains full functionality-including 55 ns access time and 2.5 µA standby current-across this entire span.
R1LV0408DSP-5SR#S0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- -
- Memory Format:
- -
- Technology:
- -
- Memory Size:
- -
- Memory Organization:
- -
- Memory Interface:
- -
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
R1LV0408DSP-5SR#S0 FAQ
1.How can I place an order for R1LV0408DSP-5SR#S0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1LV0408DSP-5SR#S0 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 R1LV0408DSP-5SR#S0 reliable?
The price and inventory of R1LV0408DSP-5SR#S0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1LV0408DSP-5SR#S0 is usually 5 days.
3.What payment methods are accepted for R1LV0408DSP-5SR#S0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LV0408DSP-5SR#S0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1LV0408DSP-5SR#S0?
R1LV0408DSP-5SR#S0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1LV0408DSP-5SR#S0 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 R1LV0408DSP-5SR#S0?
For technical support, including R1LV0408DSP-5SR#S0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LV0408DSP-5SR#S0 requirements.
6.How does Aetrix verify that R1LV0408DSP-5SR#S0 is sourced from the original manufacturer or authorized distributors?
All R1LV0408DSP-5SR#S0 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 R1LV0408DSP-5SR#S0 meets industry standards.
7.What is the process for return or replacement of R1LV0408DSP-5SR#S0?
All R1LV0408DSP-5SR#S0 units undergo pre-shipment inspection (PSI). If there is an issue with R1LV0408DSP-5SR#S0, 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 R1LV0408DSP-5SR#S0 part is unused and in its original packaging.
Return procedure for R1LV0408DSP-5SR#S0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1LV0408DSP-5SR#S0 Tags
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