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Renesas R1LV0816ASA-7SI#B0
- Part No.:
- R1LV0816ASA-7SI#B0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
R1LV0816ASA-7SI#B0.pdf
- Description:
- IC SRAM 8MBIT PARALLEL 48TSOP I
- Quantity:
- Payment:
- Shipping:
Inventory:245
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Product details
Overview
R1LV0816ASA-7SI#B0 from Renesas Electronics is an 8Mb low-power static RAM organized as 524,288 × 16-bit or 1M × 8-bit, fabricated in 0.15μm CMOS/TFT process. It operates from a single 2.4–3.6V supply, delivers 70ns access time, draws only 1.2μA standby current at 3.0V, and supports industrial temperature range (−40°C to +85°C). It serves as non-volatile backup memory in battery-powered instrumentation and portable data loggers.
For engineers reviewing the R1LV0816ASA-7SI#B0 datasheet, R1LV0816ASA-7SI#B0 pinout, R1LV0816ASA-7SI#B0 application, or R1LV0816ASA-7SI#B0 equivalent, this page provides verified package mapping, byte/word mode timing behavior, TTL-compatible I/O interface details, and validated alternative SRAMs for low-voltage embedded memory upgrades.
Technical Context
The R1LV0816ASA-7SI#B0 implements dual-mode addressing: A0–A18 for word mode (524k × 16), and A−1–A18 for byte mode (1M × 8), with BYTE# controlling mode selection. Its architecture uses separate LB#/UB# controls for 8-bit sub-word writes and OR-tie capable three-state outputs for bus sharing.
It requires no refresh or clock signal, supports simultaneous chip select (CS1#, CS2) and write enable (WE#) control, and enters ultra-low-power data retention mode when CS2 is asserted low or CS1# is high with specific voltage thresholds - enabling operation down to 1.5V VCC while retaining stored data.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (524,288 × 16 or 1,048,576 × 8) |
| Supply Voltage Range | 2.4 V to 3.6 V - enables direct interface with 2.5V/3.3V logic without level shifters |
| Access Time | 70 ns - defines maximum read cycle speed for deterministic timing in real-time control loops |
| Standby Current | 1.2 μA at 3.0 V / 25°C - ensures multi-year battery life in always-on sensor nodes |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade deployment in uncontrolled environments |
| Data Retention Voltage | 1.5 V minimum - allows memory state preservation during brown-out or backup battery operation |
| Package | 48-pin TSOP (I), 12 mm × 20 mm, 0.5 mm pitch - compatible with standard SMT reflow profiles and high-density PCB layouts |
Pinout & Package
48-pin thin small outline package (TSOP-I), 12 mm × 20 mm body, 0.50 mm lead pitch, normal-bend leads. Pin 1 marked by notch or dot; pin numbering counterclockwise from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address input (word mode) | 19-bit address bus for 524k-word addressing; A−1 used only in byte mode |
| DQ0–DQ15 | Data input/output | Bidirectional 16-bit data bus; three-state controlled by OE#, LB#, UB# |
| CS1#, CS2 | Chip select inputs | CS1# active-low primary enable; CS2 enables retention mode and buffers |
| WE#, OE#, LB#, UB# | Control inputs | WE# initiates write; OE# enables output drivers; LB#/UB# select byte lanes |
| BYTE# | Mode configuration | Low = byte mode (A−1 valid); high = word mode (A0–A18 valid) |
| Vcc, Vss | Power and ground | Single 2.4–3.6V supply; decoupling required within 10 mm of Vcc/Vss pair |
| NC | No connect | Pins 9, 10, 13 are internally unconnected - must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| No refresh or clock required | Eliminates external timing circuitry and reduces system BOM cost and power overhead |
| TTL-compatible I/O levels | Direct interfacing with legacy 5V-tolerant microcontrollers and FPGAs without level translation |
| OR-tie capable outputs | Enables parallel connection of multiple R1LV0816ASA-7SI#B0 devices on shared data bus without contention |
| Byte/word mode flexibility | Supports both 8-bit and 16-bit host interfaces via single BYTE# pin - simplifies design reuse across platforms |
| Ultra-low standby current | 1.2 μA typical at 3.0 V enables >5-year operation on coin-cell batteries in maintenance-free deployments |
Applications
| Portable Data Logger | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Battery-powered environmental sensor node recording temperature, humidity, and pressure at 10-second intervals for 30 days. IC Role / Device Role / Timing Role: Primary working memory storing buffered samples before transmission; retains data during sleep cycles using VCC ≥1.5V. Use Value: 1.2μA standby current extends CR2032 battery life beyond 3 years; 70ns access supports burst reads during wake-up without CPU wait states. |
Use Scenario: Modular I/O expansion unit in factory automation systems requiring deterministic response to fieldbus commands. IC Role / Device Role / Timing Role: Local buffer memory for analog input sampling and digital output staging; synchronized via CS1#/WE# with controller's timing engine. Use Value: −40°C to +85°C rating ensures reliability in unconditioned control cabinets; byte-mode support simplifies integration with 8-bit microcontroller peripherals. |
| Medical Diagnostic Handheld | Smart Energy Meter |
|
Use Scenario: Portable ultrasound probe storing waveform snapshots and calibration coefficients between sessions. IC Role / Device Role / Timing Role: Non-volatile scratchpad memory preserving settings and last-acquired image metadata during power cycling. Use Value: Data retention down to 1.5V VCC prevents loss during battery swap; 48-pin TSOP footprint fits compact handheld PCBs with minimal routing congestion. |
Use Scenario: Revenue-grade electricity meter logging consumption data every 15 minutes with tamper-resistant storage. IC Role / Device Role / Timing Role: Secure intermediate storage for encrypted usage records prior to secure transfer to concentrator. Use Value: Dual CS1#/CS2 control enables hardware-enforced isolation between active and retention modes; 0.5mm pitch supports high-yield automated assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-voltage SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62167EV30LL-70ZSXI | 70ns access, 2.2–3.6V supply, 1MB × 16 organization, 48-pin TSOP-II package | Higher VIL threshold (0.6V vs. 0.4V) and different pinout - requires PCB redesign | Preferred where higher noise immunity on control lines is critical and layout revision is acceptable |
| IS61LV51216AL-70TQLI | 70ns access, 2.4–3.6V supply, 512k × 16 organization, 44-pin SOJ package | Smaller density (4Mb), SOJ packaging incompatible with TSOP reflow profile and board space | Suitable for cost-sensitive designs where 4Mb capacity suffices and through-hole or alternate SMT process is available |
Compared with CY62167EV30LL-70ZSXI and IS61LV51216AL-70TQLI, the R1LV0816ASA-7SI#B0 uniquely combines 8Mb density, 48-pin TSOP-I compatibility, and 1.5V data retention - making it optimal for space-constrained, battery-backed industrial memory upgrades without layout change.
Availability
R1LV0816ASA-7SI#B0 is available at Aetrix Electronics and suitable for portable instrumentation, industrial PLC modules, medical handhelds, smart energy meters, and battery-backed data loggers requiring stable component supply across extended product lifecycles.
Supply support for R1LV0816ASA-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 global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.
The R1LV0816ASA series was designed specifically for low-voltage, low-power static RAM applications in battery-operated and energy-conscious embedded systems - emphasizing data retention, wide supply tolerance, and simplified interface.
FAQ
What is the minimum supply voltage required to retain data in R1LV0816ASA-7SI#B0?
The R1LV0816ASA-7SI#B0 maintains stored data down to 1.5V VCC under specified conditions (CS2 ≤ 0.2V or CS1# ≥ VCC−0.2V). This retention capability is confirmed in the Data Retention Characteristics table on page 15 of the official Renesas datasheet REJ03C0395-0100. Below 1.5V, data integrity is not guaranteed.
Does R1LV0816ASA-7SI#B0 support true 8-bit operation, and how is it configured?
Yes, the R1LV0816ASA-7SI#B0 supports native 8-bit operation via byte mode. When BYTE# is driven low, address line A−1 becomes active and DQ0–DQ7 function as the sole data path, enabling 1M × 8 organization. This mode is explicitly defined in the Pin Description and Operation Table sections of the datasheet.
What is the maximum operating current of R1LV0816ASA-7SI#B0 during active read/write cycles?
The R1LV0816ASA-7SI#B0 draws up to 35mA average operating current (ICC1) under worst-case conditions: minimum cycle time, 100% duty, and zero I/O load. This value is specified in the DC Characteristics table (page 6) and applies across the full 2.4–3.6V supply range and −40°C to +85°C temperature span.
Can R1LV0816ASA-7SI#B0 be used in place of R1LV0816ASA-5SI#B0 without hardware changes?
No - while pinout and functionality are identical, the R1LV0816ASA-7SI#B0 has 70ns access time versus 55ns for the -5SI variant. Substituting the -7SI into a design timed for 55ns may cause timing violations in high-speed read/write sequences. The -7SI is only safe for replacement if the host system's timing margins accommodate the slower access.
Is R1LV0816ASA-7SI#B0 compliant with RoHS and lead-free soldering standards?
Yes, the R1LV0816ASA-7SI#B0 is RoHS-compliant and qualified for lead-free reflow soldering per JEDEC J-STD-020. The "#B0" suffix denotes lead-free, halogen-free packaging, and the device meets EU RoHS Directive 2011/65/EU requirements as stated in Renesas' environmental compliance documentation.
R1LV0816ASA-7SI#B0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8, 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:
- 48-TSOP I
R1LV0816ASA-7SI#B0 FAQ
1.How can I place an order for R1LV0816ASA-7SI#B0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1LV0816ASA-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 R1LV0816ASA-7SI#B0 reliable?
The price and inventory of R1LV0816ASA-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 R1LV0816ASA-7SI#B0 is usually 5 days.
3.What payment methods are accepted for R1LV0816ASA-7SI#B0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LV0816ASA-7SI#B0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1LV0816ASA-7SI#B0?
R1LV0816ASA-7SI#B0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1LV0816ASA-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 R1LV0816ASA-7SI#B0?
For technical support, including R1LV0816ASA-7SI#B0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LV0816ASA-7SI#B0 requirements.
6.How does Aetrix verify that R1LV0816ASA-7SI#B0 is sourced from the original manufacturer or authorized distributors?
All R1LV0816ASA-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 R1LV0816ASA-7SI#B0 meets industry standards.
7.What is the process for return or replacement of R1LV0816ASA-7SI#B0?
All R1LV0816ASA-7SI#B0 units undergo pre-shipment inspection (PSI). If there is an issue with R1LV0816ASA-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 R1LV0816ASA-7SI#B0 part is unused and in its original packaging.
Return procedure for R1LV0816ASA-7SI#B0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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