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Renesas R1LV0108ESF-7SI#B0
- Part No.:
- R1LV0108ESF-7SI#B0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
R1LV0108ESF-7SI#B0.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32TSOP I
- Quantity:
- Payment:
- Shipping:
Inventory:4,929
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Product details
Overview
R1LV0108ESF-7SI#B0 from Renesas Electronics is a 1Mb (128k × 8-bit) low-power static RAM IC operating from a single 2.7–3.6V supply, featuring 70ns access time, -40°C to +85°C industrial temperature range, and 0.6µA typical standby current at 3.0V. It serves as non-volatile data buffer in battery-backed instrumentation, portable medical devices, and industrial PLCs requiring zero-refresh operation and TTL-compatible interfacing.
For engineers reviewing the R1LV0108ESF-7SI#B0 datasheet, R1LV0108ESF-7SI#B0 pinout, R1LV0108ESF-7SI#B0 application, or R1LV0108ESF-7SI#B0 equivalent, this page delivers verified package mapping (32-pin TSOP), validated pin functions, confirmed AC/DC electrical specs, and real-world use cases aligned with Renesas' official R10DS0152EJ0100 Rev.1.00 specification.
Technical Context
This SRAM implements a fully static 128k-word × 8-bit memory array fabricated in 0.15µm CMOS/TFT process, with dual chip select (CS1#, CS2) enabling seamless memory expansion and OR-tie capability via three-state outputs. Address decoding is handled by dedicated row/column decoders without clock or refresh circuitry.
All I/O signals-including A0–A16, DQ0–DQ7, WE#, OE#, and chip selects-are TTL-compatible with VIH ≥ 2.0V and VIL ≤ 0.6V. Data retention is guaranteed down to 2.0V Vcc when CS2 ≤ 0.2V or CS1# ≥ Vcc−0.2V, supporting ultra-low-power backup modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 1 Mb (131,072 × 8-bit); supports byte-wide data bus without external multiplexing. |
| Access time | 70 ns max; ensures compatibility with 14 MHz bus timing in microcontroller-based systems. |
| Supply voltage | 2.7–3.6 V; enables direct interface with 3.3V logic families and battery-powered designs. |
| Standby current | 0.6 µA typical at 3.0V/25°C; extends battery life in always-on monitoring applications. |
| Operating temp. | -40°C to +85°C; qualified for industrial environments including factory automation and outdoor telemetry. |
| Data retention Vcc | 2.0 V min; allows memory contents to persist during brown-out or backup battery operation. |
| Output drive | IOH = -0.5 mA / IOL = 2 mA; meets TTL fan-out requirements for direct connection to legacy controllers. |
Pinout & Package
Package: 32-pin plastic TSOP (normal-bend type), 8mm × 20mm footprint (PTSA0032KA-A), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address input | 17-bit address bus supporting full 128k-word addressing; no multiplexing required. |
| DQ0–DQ7 | Data I/O | Bi-directional 8-bit data bus with three-state output control via OE# and CS#. |
| CS1#, CS2 | Chip select | Dual enable logic: CS1# active-low + CS2 active-high enables device; supports memory banking. |
| WE# | Write enable | Active-low write strobe; write occurs only when CS1# = L, CS2 = H, WE# = L. |
| OE# | Output enable | Active-low control for output buffer; prevents bus contention during read cycles. |
| Vcc, Vss | Power/Ground | Single 2.7–3.6V supply; no separate I/O or core voltage rails needed. |
| NC | No connect | Pin 1 (NC) is unconnected; must remain floating or tied to ground per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| No refresh required | Eliminates system-level refresh overhead and timing constraints-ideal for simple MCU interfaces. |
| TTL-compatible I/O | Direct connection to legacy 3.3V/5V microcontrollers without level-shifting circuitry. |
| Dual chip select (CS1#, CS2) | Enables seamless expansion beyond 1Mb using external decode logic or address lines. |
| OR-tie capable outputs | Multiple R1LV0108ESF-7SI#B0 devices can share a common data bus without external logic. |
| Low Vcc data retention | Maintains stored data down to 2.0V Vcc-critical for battery backup and power-fail scenarios. |
Applications
| Portable Medical Monitor | Industrial PLC Data Logger |
|---|---|
Use Scenario: Continuous ECG waveform buffering in handheld diagnostic units powered by coin-cell batteries. IC Role / Device Role / Timing Role: Non-volatile data buffer storing 10+ seconds of raw sensor samples between host reads. Use Value: 0.6µA standby current extends battery life to >1 year; 70ns access supports real-time display update rates. |
Use Scenario: Local history storage in DIN-rail mounted controllers capturing sensor events during network outages. IC Role / Device Role / Timing Role: Standalone SRAM holding timestamped alarm logs and process variables without DRAM controller overhead. Use Value: -40°C to +85°C rating ensures reliability in unconditioned control cabinets; no refresh simplifies firmware design. |
| Smart Meter Firmware Cache | Avionics Black Box Recorder |
Use Scenario: Storing firmware patch segments and calibration tables in electricity meters with intermittent RF communication. IC Role / Device Role / Timing Role: Read-only instruction/data cache accessed during boot and OTA update verification. Use Value: TTL compatibility allows reuse of existing 3.3V MCU GPIO; 2.0V data retention preserves critical config during brown-outs. |
Use Scenario: Crash-data capture in UAV flight controllers where power may fail mid-flight. IC Role / Device Role / Timing Role: High-reliability scratchpad memory writing sensor telemetry at 1kHz until safe landing. Use Value: 70ns access enables deterministic write latency; industrial temp grade withstands thermal cycling in airframe bays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61LV102416L-7TLI | 2Mb (128k × 16-bit), 70ns, 3.3V only, 44-pin TSOP; higher density but wider bus. | Requires 16-bit data path redesign; not drop-in for 8-bit systems. | Select only if migrating to wider bus architecture and needing double capacity. |
| AS6C4008-70ZIN | 4Mb (512k × 8-bit), 70ns, 2.7–3.6V, 32-pin SOP; same voltage range but larger die size. | Larger footprint (525-mil SOP vs. TSOP); higher standby current (1.5µA typical). | Prefer when board space permits SOP and higher density justifies layout change. |
Compared with R1LV0108ESF-7SI#B0, IS61LV102416L-7TLI offers double word width but mandates PCB redesign, while AS6C4008-70ZIN provides quadruple density at the cost of 2.5× higher standby current and larger package-making R1LV0108ESF-7SI#B0 optimal for space-constrained, ultra-low-power 8-bit embedded systems.
Availability
R1LV0108ESF-7SI#B0 is available at Aetrix Electronics and suitable for portable medical monitors, industrial PLC data loggers, smart meter firmware caches, avionics black box recorders, and battery-backed instrumentation requiring stable component supply across extended product lifecycles.
Supply support for R1LV0108ESF-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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.
The R1LV0108E Series was designed specifically for low-voltage, low-power static RAM applications in battery-operated and thermally constrained systems-emphasizing simplicity, reliability, and zero-refresh operation.
FAQ
What is the maximum operating frequency supported by R1LV0108ESF-7SI#B0?
R1LV0108ESF-7SI#B0 does not operate on a clock signal-it is a fully static RAM with asynchronous timing. Its 70ns access time corresponds to a maximum effective bus rate of ~14 MHz in continuous read/write cycles. System timing is governed by tRC (70ns read cycle time) and tWC (70ns write cycle time), not a clock frequency.
Does R1LV0108ESF-7SI#B0 require an external clock or refresh circuit?
No, R1LV0108ESF-7SI#B0 is a true static RAM and requires neither an external clock nor periodic refresh. All memory cells retain data as long as power is applied and valid control signals (CS1#, CS2, WE#, OE#) are maintained-eliminating refresh overhead in MCU firmware and simplifying hardware design.
Can R1LV0108ESF-7SI#B0 be used with a 5V microcontroller?
R1LV0108ESF-7SI#B0 operates strictly at 2.7–3.6V and is not 5V-tolerant. Its inputs accept VIH ≥ 2.0V and VIL ≤ 0.6V, making it compatible with 3.3V logic families. Direct interface with 5V MCUs requires level-shifting circuitry on all address, data, and control lines to prevent damage and ensure signal integrity.
What is the purpose of the NC pin on R1LV0108ESF-7SI#B0?
Pin 1 of R1LV0108ESF-7SI#B0 is marked NC (No Connect) in the official Renesas datasheet R10DS0152EJ0100. It is internally unconnected and must remain electrically floating or tied to ground per PCB layout best practices-never driven high or used as a signal line.
How does R1LV0108ESF-7SI#B0 achieve data retention below 2.7V?
R1LV0108ESF-7SI#B0 maintains data integrity down to 2.0V Vcc by entering data retention mode when CS2 ≤ 0.2V or CS1# ≥ Vcc−0.2V. In this state, internal buffers are disabled and leakage is minimized to 0.6µA typical, allowing memory contents to persist during brown-out or battery backup conditions without external support circuitry.
R1LV0108ESF-7SI#B0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 70ns
- Access Time:
- 70 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP I
R1LV0108ESF-7SI#B0 FAQ
1.How can I place an order for R1LV0108ESF-7SI#B0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1LV0108ESF-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 R1LV0108ESF-7SI#B0 reliable?
The price and inventory of R1LV0108ESF-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 R1LV0108ESF-7SI#B0 is usually 5 days.
3.What payment methods are accepted for R1LV0108ESF-7SI#B0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LV0108ESF-7SI#B0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1LV0108ESF-7SI#B0?
R1LV0108ESF-7SI#B0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1LV0108ESF-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 R1LV0108ESF-7SI#B0?
For technical support, including R1LV0108ESF-7SI#B0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LV0108ESF-7SI#B0 requirements.
6.How does Aetrix verify that R1LV0108ESF-7SI#B0 is sourced from the original manufacturer or authorized distributors?
All R1LV0108ESF-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 R1LV0108ESF-7SI#B0 meets industry standards.
7.What is the process for return or replacement of R1LV0108ESF-7SI#B0?
All R1LV0108ESF-7SI#B0 units undergo pre-shipment inspection (PSI). If there is an issue with R1LV0108ESF-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 R1LV0108ESF-7SI#B0 part is unused and in its original packaging.
Return procedure for R1LV0108ESF-7SI#B0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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