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Renesas R1LV0108ESF-7SR#S0
- Part No.:
- R1LV0108ESF-7SR#S0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
R1LV0108ESF-7SR#S0.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32TSOP I
- Quantity:
- Payment:
- Shipping:
Inventory:2,077
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Product details
Overview
R1LV0108ESF-7SR#S0 from Renesas Electronics is a 1Mb (128k × 8-bit) low-power static RAM with 70 ns access time, single 2.7–3.6 V supply, and 0.6 µA typical standby current at 3.0 V. It operates across 0 to +70°C and is packaged in a 32-pin TSOP (8 mm × 20 mm, normal-bend). This LPSRAM serves as non-volatile data buffer in battery-backed instrumentation and portable industrial controllers.
For engineers reviewing the R1LV0108ESF-7SR#S0 datasheet, R1LV0108ESF-7SR#S0 pinout, R1LV0108ESF-7SR#S0 application, or R1LV0108ESF-7SR#S0 equivalent, key selection criteria include its TTL-compatible I/O, dual chip select architecture for memory expansion, three-state OR-tie capable outputs, and guaranteed data retention down to 2.0 V with sub-µA retention current.
Technical Context
The R1LV0108ESF-7SR#S0 implements a fully static 128k-word × 8-bit memory array using Renesas's 0.15 µm CMOS/TFT process, eliminating refresh circuitry and clock inputs. Its dual chip select (CS1# active-low, CS2 active-high) enables seamless bank expansion without external logic.
Address decoding is handled by integrated row/column decoders driving a sense/write amplifier array; all control signals (WE#, OE#, CS1#, CS2) are TTL-compatible with VIH ≥ 2.0 V and VIL ≤ 0.6 V. Output enable (OE#) ensures bus contention avoidance during shared-data-bus operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Mb (131,072 × 8-bit), enabling compact 8-bit microcontroller data buffering without external address latching |
| Access time | 70 ns max - supports reliable interface with legacy 14 MHz Z80 or 8051 derivatives without wait states |
| Supply voltage | 2.7–3.6 V - compatible with single-cell Li-ion or triple-AA battery systems with minimal regulation overhead |
| Standby current | 0.6 µA typical at 3.0 V/25°C - extends battery life to years in always-on sensor nodes |
| Data retention VCC | 2.0 V min - maintains SRAM contents during brown-out or backup-switch transitions |
| I/O compatibility | TTL-level inputs/outputs - direct interfacing with 5 V tolerant MCU GPIOs without level shifters |
| Operating temperature | 0 to +70°C - qualified for commercial-grade embedded control and test equipment |
Pinout & Package
Package: 32-pin plastic TSOP (normal-bend), 8 mm × 20 mm footprint (PTSA0032KA-A / 32P3H-E), surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address input | 17-bit address bus supporting full 128k-word addressing; no multiplexing required |
| DQ0–DQ7 | Bi-directional data I/O | Common data bus with three-state output control via OE# and chip selects |
| CS1# | Chip select 1 (active-low) | Primary enable; device active only when CS1# = L and CS2 = H |
| CS2 | Chip select 2 (active-high) | Secondary enable; used with CS1# for multi-bank memory mapping |
| WE# | Write enable (active-low) | Controls write cycle initiation; low pulse initiates data latch into memory array |
| OE# | Output enable (active-low) | Gates output drivers; high-Z state prevents bus contention during read idle |
| Vcc | Power supply | Single 2.7–3.6 V supply rail; decoupling capacitor required per JEDEC guidelines |
| Vss | Ground | Signal and power ground reference; must be low-impedance connection |
| NC | No connect | Pin 1 (NC) is internally unconnected; must remain floating or grounded per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| No clocks, no refresh | Eliminates timing-critical system clock routing and refresh interrupt overhead in MCU firmware |
| Small stand-by current (0.6 µA) | Enables >10-year battery life in metering applications with periodic wake-up intervals |
| Easy memory expansion via CS1# and CS2 | Supports up to four independent 1Mb banks using simple address-line decoding (e.g., A17/A18) |
| Three-state outputs with OR-tie capability | Allows multiple R1LV0108ESF-7SR#S0 devices to share a common data bus without external bus transceivers |
| OE# prevents data contention | Guarantees high-impedance output state during bus arbitration or multi-master access |
Applications
| Industrial Data Logger | Portable Medical Monitor |
|---|---|
Use Scenario: Continuous acquisition of ECG waveforms at 250 Hz with local storage before wireless upload. IC Role / Device Role / Timing Role: Primary data buffer holding 30+ seconds of raw waveform samples prior to transmission. Use Value: 70 ns access time ensures real-time capture without DMA stalls; 0.6 µA standby preserves battery during sleep between measurements. |
Use Scenario: Handheld blood glucose meter storing calibration history and recent test results. IC Role / Device Role / Timing Role: Non-volatile scratchpad memory retaining settings and logs during battery replacement. Use Value: Data retention down to 2.0 V guarantees zero data loss during hot-swap of CR2032 coin cell. |
| Smart Energy Meter | Factory Floor HMI Controller |
Use Scenario: Utility meter logging kWh consumption, voltage sags, and tamper events over 30-day cycles. IC Role / Device Role / Timing Role: Backup memory holding critical billing data during AC power failure. Use Value: Dual chip select architecture allows pairing with EEPROM for firmware updates while preserving runtime data in SRAM. |
Use Scenario: Panel-mounted PLC interface storing operator configuration, alarm thresholds, and runtime counters. IC Role / Device Role / Timing Role: Fast-access parameter store enabling sub-millisecond UI response to button presses. Use Value: TTL-compatible I/O eliminates level-shifting components, reducing BOM cost and PCB area in space-constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61LV10248AL-70TLI | 70 ns access, 3.3 V only (3.135–3.465 V), 1 µA standby current, 32-pin TSOP-II | Requires tighter Vcc regulation; higher standby current reduces battery life in ultra-low-power designs | Select if system uses strict 3.3 V rails and needs second-source availability from ISSI |
| CY62128ELL-70ZSXIT | 70 ns access, 2.7–3.6 V, 1 µA standby, 32-pin SOJ (not pin-compatible) | SOJ package incompatible with TSOP footprints; requires PCB redesign and requalification | Choose only when legacy SOJ socket compatibility is mandatory and board revision is feasible |
Compared with R1LV0108ESF-7SR#S0, IS61LV10248AL-70TLI offers identical speed but narrower voltage tolerance and higher leakage, while CY62128ELL-70ZSXIT matches voltage range but mandates mechanical redesign due to SOJ packaging - making R1LV0108ESF-7SR#S0 optimal for drop-in TSOP-based battery-powered systems requiring lowest standby power.
Availability
R1LV0108ESF-7SR#S0 is available at Aetrix Electronics and suitable for industrial data loggers, portable medical monitors, smart energy meters, factory floor HMIs, and battery-backed test equipment requiring stable component supply across long production lifecycles.
Supply support for R1LV0108ESF-7SR#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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and enterprise applications.
The R1LV0108E Series was designed specifically for low-power, battery-operated memory applications where simplicity, reliability, and extended data retention under brown-out conditions are critical.
FAQ
What is the maximum operating temperature range for R1LV0108ESF-7SR#S0?
The R1LV0108ESF-7SR#S0 is rated for 0 to +70°C ambient operation (R-version). Its datasheet specifies this range explicitly in the Ordering Information table and DC Operating Conditions section. Operation outside this range may result in timing violations or increased standby current, and is not guaranteed by Renesas.
Does R1LV0108ESF-7SR#S0 require an external clock or refresh signal?
No, the R1LV0108ESF-7SR#S0 is a fully static RAM and requires no clock or refresh signals. Its architecture uses bistable latches for data storage, enabling true asynchronous operation - a key feature confirmed in the "Features" section of the R10DS0152EJ0100 datasheet.
Can R1LV0108ESF-7SR#S0 retain data when Vcc drops below 2.7 V?
Yes, the R1LV0108ESF-7SR#S0 guarantees data retention down to 2.0 V under specified conditions (CS2 ≤ 0.2 V or CS1# ≥ Vcc−0.2 V), with typical retention current of 0.6 µA at 25°C. This is documented in the "Low Vcc Data Retention Characteristics" section on page 12 of the datasheet.
What is the function of the NC pin on R1LV0108ESF-7SR#S0?
Pin 1 of the R1LV0108ESF-7SR#S0 is marked NC (No Connect) in the Pin Arrangement diagram on page 3. It is internally unconnected and must be left floating or tied to ground per PCB layout best practices - it serves no electrical function and must not be driven.
Is R1LV0108ESF-7SR#S0 pin-compatible with other members of the R1LV0108E Series?
Yes, all R1LV0108E Series variants - including R1LV0108ESN, R1LV0108ESA, and R1LV0108ESF - share identical 32-pin pinouts across SOP, sTSOP, and TSOP packages. The R1LV0108ESF-7SR#S0 uses the same TSOP pin arrangement shown on page 3, confirming full pin-for-pin compatibility within the family.
R1LV0108ESF-7SR#S0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP I
R1LV0108ESF-7SR#S0 FAQ
1.How can I place an order for R1LV0108ESF-7SR#S0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1LV0108ESF-7SR#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 R1LV0108ESF-7SR#S0 reliable?
The price and inventory of R1LV0108ESF-7SR#S0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1LV0108ESF-7SR#S0 is usually 5 days.
3.What payment methods are accepted for R1LV0108ESF-7SR#S0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LV0108ESF-7SR#S0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1LV0108ESF-7SR#S0?
R1LV0108ESF-7SR#S0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1LV0108ESF-7SR#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 R1LV0108ESF-7SR#S0?
For technical support, including R1LV0108ESF-7SR#S0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LV0108ESF-7SR#S0 requirements.
6.How does Aetrix verify that R1LV0108ESF-7SR#S0 is sourced from the original manufacturer or authorized distributors?
All R1LV0108ESF-7SR#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 R1LV0108ESF-7SR#S0 meets industry standards.
7.What is the process for return or replacement of R1LV0108ESF-7SR#S0?
All R1LV0108ESF-7SR#S0 units undergo pre-shipment inspection (PSI). If there is an issue with R1LV0108ESF-7SR#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 R1LV0108ESF-7SR#S0 part is unused and in its original packaging.
Return procedure for R1LV0108ESF-7SR#S0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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