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Renesas RMLV0816BGSA-4S2#KA0
- Part No.:
- RMLV0816BGSA-4S2#KA0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
RMLV0816BGSA-4S2#KA0.pdf
- Description:
- IC SRAM 8MBIT PARALLEL 48TSOP I
- Quantity:
- Payment:
- Shipping:
Inventory:2,762
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Product details
Overview
RMLV0816BGSA-4S2 from Renesas Electronics is an 8Mb Advanced LPSRAM organized as 524,288-word × 16-bit (or 1,048,576-word × 8-bit), operating from a single 2.4–3.6V supply, with 45ns max access time at 2.7–3.6V and 0.45µA typical standby current at +25°C - designed for low-power battery-backed memory in industrial controllers and portable instrumentation.
For engineers reviewing the RMLV0816BGSA-4S2 datasheet, RMLV0816BGSA-4S2 pinout, RMLV0816BGSA-4S2 application, or RMLV0816BGSA-4S2 equivalent, key selection criteria include byte/word mode flexibility, TSOP (I) package compatibility, low-voltage data retention down to 1.5V, TTL-level I/O compatibility, and dual chip select architecture for memory banking.
Technical Context
This static RAM implements a dual-mode address/data architecture supporting both word (A0–A18) and byte (A−1–A18) addressing via BYTE# control, enabling seamless 8-bit or 16-bit bus interfacing without external logic. Its internal column decoder and sense/write amplifier support simultaneous upper/lower byte writes and word reads with equal access and cycle times.
The device uses Renesas's Advanced LPSRAM process to achieve sub-microamp standby current while maintaining full-speed operation across −40°C to +85°C. Three-state DQ outputs, direct TTL compatibility on all pins, and independent LB#/UB# controls allow precise byte-level access in mixed-width systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 8 Mbit (524,288 × 16 or 1,048,576 × 8) |
| Supply voltage | 2.4 V to 3.6 V - supports wide-range battery and regulated rail operation |
| Access time | 45 ns max (2.7–3.6 V) - enables integration into 22 MHz synchronous bus systems |
| Standby current | 0.45 µA typ. at +25°C - extends battery life in backup-memory applications |
| Data retention VCC | 1.5 V min - retains data during brown-out or deep-sleep modes |
| Operating temperature | −40°C to +85°C - qualified for industrial and automotive-adjacent environments |
| I/O interface | TTL-compatible inputs/outputs - eliminates level-shifter requirements on legacy microcontrollers |
Pinout & Package
Package: 48-pin plastic TSOP (I), 12 mm × 20 mm footprint, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply | Primary 2.4–3.6 V supply rail for core and I/O |
| VSS | Ground | Common reference for all signals and power domains |
| A0–A18 | Address input (word mode) | 19-bit address bus for 524k-word × 16-bit configuration |
| A−1–A18 | Address input (byte mode) | 19-bit address with A−1 enabling 1M-word × 8-bit mapping |
| DQ0–DQ15 | Data I/O | Bidirectional 16-bit data bus with three-state output control |
| CS1#, CS2 | Chip select inputs | Two independent enables for memory banking or hierarchical decoding |
| OE#, WE#, LB#, UB#, BYTE# | Control inputs | Enable read/write, byte selection, and mode switching without external glue logic |
| NC | No connection | Unbonded pins - must be left floating or tied to VSS per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply 2.4–3.6 V operation | Eliminates dual-rail design complexity and reduces BOM count in portable systems |
| Byte/word mode via BYTE# pin | Enables hardware-selectable bus width without firmware or PCB change |
| 0.45 µA typical standby current | Supports >10-year battery backup in real-time clock and SRAM-critical modules |
| 1.5 V data retention threshold | Guarantees nonvolatile hold during extended power-loss events below nominal supply |
| Direct TTL compatibility | Interoperates with legacy 5 V microcontrollers using only series resistors, no level shifters |
Applications
| Industrial PLC Data Buffer | Portable Medical Instrument Memory |
|---|---|
Use Scenario: Real-time logging of sensor readings and control states in programmable logic controllers with intermittent power. IC Role / Device Role / Timing Role: Nonvolatile buffer storing operational history and configuration during mains failure. Use Value: 0.45 µA standby current and 1.5 V data retention enable >30-day hold-up on coin-cell backup. | Use Scenario: Storing calibration coefficients and patient session data in handheld ECG monitors. IC Role / Device Role / Timing Role: Low-power SRAM holding critical parameters between active measurement cycles. Use Value: TTL-compatible I/O and 45 ns access time allow direct interfacing with 8-bit MCUs without timing margin loss. |
| Automotive Infotainment Cache | Test & Measurement Equipment Buffer |
Use Scenario: Caching UI assets and recent navigation history in head-unit systems with thermal constraints. IC Role / Device Role / Timing Role: High-speed, low-heat memory supplementing main DRAM for fast UI response. Use Value: −40°C to +85°C rating and 48-pin TSOP (I) package ensure reliability in under-dash environments. | Use Scenario: Temporary waveform storage in digital oscilloscopes and logic analyzers during acquisition bursts. IC Role / Device Role / Timing Role: High-bandwidth, deterministic-access buffer synchronized to sampling clocks. Use Value: Equal access/cycle times and 45 ns performance support sustained 22 MS/s capture without pipeline stalls. |
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 (35 ns), 3.3 V only (3.0–3.6 V), no 2.4 V operation | Requires stable 3.3 V rail; unsuitable for wide-input battery systems | Choose when speed > power savings and supply regulation is tight |
| AS6C4008-55PCN | 55 ns access, 2.7–3.6 V, 44-pin SOJ package - no BYTE# pin or byte-mode support | Lacks hardware-configurable bus width; requires external address muxing for 8-bit interfaces | Choose for cost-sensitive, fixed-bus-width designs where 45 ns timing is not required |
Compared with IS61LV25616AL-10TLI and AS6C4008-55PCN, the RMLV0816BGSA-4S2 uniquely balances ultra-low standby current, wide supply range, and hardware-selectable 8/16-bit operation - making it optimal for battery-backed, thermally constrained, or mixed-bus embedded systems where flexibility and longevity outweigh raw speed.
Availability
RMLV0816BGSA-4S2 is available at Aetrix Electronics and suitable for industrial PLC data buffering, portable medical instrument memory, and automotive infotainment cache applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for RMLV0816BGSA-4S2 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 IoT markets.
The RMLV0816BGSA-4S2 belongs to Renesas's Advanced LPSRAM product line, engineered specifically for ultra-low-power, high-reliability memory in battery-backed and thermally demanding embedded systems.
FAQ
What is the minimum supply voltage required for data retention in the RMLV0816BGSA-4S2?
The RMLV0816BGSA-4S2 guarantees data retention down to 1.5 V, as specified in the Low VCC Data Retention Characteristics table (Page 13). At this voltage, with CS2 ≤ 0.2 V or other valid retention entry conditions met, the device maintains stored data while drawing only 0.45 µA typical current at +25°C - enabling robust operation during brown-out or battery-depletion scenarios.
Does the RMLV0816BGSA-4S2 support both 8-bit and 16-bit data buses natively?
Yes, the RMLV0816BGSA-4S2 supports native 8-bit and 16-bit operation via the BYTE# pin. When BYTE# is asserted, the device operates in byte mode (1,048,576 × 8), using A−1 as the LSB; when deasserted, it operates in word mode (524,288 × 16). This eliminates external address multiplexing or bus-width translation logic in mixed-interface systems.
What is the maximum operating frequency implied by the RMLV0816BGSA-4S2's 45 ns access time?
A 45 ns access time corresponds to a maximum sustainable random-read frequency of approximately 22.2 MHz (1 / 45 ns). The RMLV0816BGSA-4S2 achieves this at 2.7–3.6 V supply; at 2.4–2.7 V, access time increases to 55 ns (≤18.2 MHz). Cycle time equals access time, ensuring deterministic timing for synchronous controller interfaces.
How does the dual chip select (CS1# and CS2) architecture benefit system design with the RMLV0816BGSA-4S2?
The RMLV0816BGSA-4S2's CS1# and CS2 inputs enable hierarchical memory decoding: CS2 acts as a master enable for address/control buffers, while CS1# selects the device within that group. This allows flexible bank switching, partial memory disablement for power gating, and clean isolation during bus sharing - reducing contention and simplifying address decoding in multi-SRAM systems.
Is the RMLV0816BGSA-4S2 pin-compatible with standard 48-pin TSOP (I) SRAMs such as the IS61LV25616AL?
No, the RMLV0816BGSA-4S2 is not pin-compatible with IS61LV25616AL. While both use 48-pin TSOP (I), pin assignments differ significantly - notably, RMLV0816BGSA-4S2 places A15–A18 and NC pins in positions occupied by DQ lines on the IS61LV25616AL. Layout reuse requires verification against the official Renesas pin diagram (Page 2).
RMLV0816BGSA-4S2#KA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 45ns
- Access Time:
- 45 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
RMLV0816BGSA-4S2#KA0 FAQ
1.How can I place an order for RMLV0816BGSA-4S2#KA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RMLV0816BGSA-4S2#KA0 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 RMLV0816BGSA-4S2#KA0 reliable?
The price and inventory of RMLV0816BGSA-4S2#KA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RMLV0816BGSA-4S2#KA0 is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RMLV0816BGSA-4S2#KA0 transactions.
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RMLV0816BGSA-4S2#KA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RMLV0816BGSA-4S2#KA0 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 RMLV0816BGSA-4S2#KA0?
For technical support, including RMLV0816BGSA-4S2#KA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RMLV0816BGSA-4S2#KA0 requirements.
6.How does Aetrix verify that RMLV0816BGSA-4S2#KA0 is sourced from the original manufacturer or authorized distributors?
All RMLV0816BGSA-4S2#KA0 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 RMLV0816BGSA-4S2#KA0 meets industry standards.
7.What is the process for return or replacement of RMLV0816BGSA-4S2#KA0?
All RMLV0816BGSA-4S2#KA0 units undergo pre-shipment inspection (PSI). If there is an issue with RMLV0816BGSA-4S2#KA0, 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 RMLV0816BGSA-4S2#KA0 part is unused and in its original packaging.
Return procedure for RMLV0816BGSA-4S2#KA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RMLV0816BGSA-4S2#KA0 Tags
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