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Renesas R1LV0108ESA-5SI#S1
- Part No.:
- R1LV0108ESA-5SI#S1
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-TFSOP (0.465", 11.80mm Width)
- Datasheet:
-
R1LV0108ESA-5SI#S1.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32TSOP I
- Quantity:
- Payment:
- Shipping:
Inventory:3,096
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Product details
Overview
R1LV0108ESA-5SI#S1 from Renesas Electronics is a 1Mb (128k × 8-bit) low-power static RAM designed for battery-backed and low-voltage embedded memory applications. It operates from a single 2.7–3.6V supply, delivers 55 ns access time at -40°C to +85°C, and features ultra-low standby current of 0.6 µA (typ. at 3.0V). Its TTL-compatible I/O, dual chip select (CS1#, CS2), and common data I/O support simple expansion in portable instrumentation and industrial controllers.
For engineers reviewing the R1LV0108ESA-5SI#S1 datasheet, R1LV0108ESA-5SI#S1 pinout, R1LV0108ESA-5SI#S1 application, or R1LV0108ESA-5SI#S1 equivalent, key selection criteria include its sTSOP-32 package, -40°C to +85°C industrial temperature rating, 55 ns read/write timing, 0.6 µA standby current, and compatibility with legacy SRAM-based microcontroller interfaces requiring no refresh or clocks.
Technical Context
The R1LV0108ESA-5SI#S1 implements a fully static 128k-word × 8-bit memory array using Renesas's 0.15 µm CMOS process, eliminating need for clocks or refresh cycles. Its dual chip select architecture (CS1# active-low, CS2 active-high) enables seamless memory banking and expansion without external logic.
It supports true three-state outputs with OR-tie capability and uses OE# to prevent bus contention during read operations. The device maintains data retention down to 2.0V Vcc while drawing only 0.6 µA typical standby current at 25°C - critical for battery-critical systems where power budget and data persistence are tightly coupled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Mb (131,072 × 8-bit); provides compact, byte-accessible storage for firmware buffers and real-time data logging. |
| Access time | 55 ns max; ensures compatibility with 16–20 MHz microcontrollers without wait states. |
| Supply voltage | 2.7–3.6 V; matches Li-ion/Li-Po battery discharge profiles and eliminates need for LDO regulation in portable designs. |
| Standby current | 0.6 µA typical at 3.0 V / 25°C; extends battery life in always-on monitoring nodes by >10× vs. standard SRAMs. |
| Operating temperature | -40°C to +85°C; qualified for industrial control, automotive body electronics, and outdoor metering environments. |
| Package | 32-pin sTSOP (8 mm × 13.4 mm, normal-bend); enables high-density PCB layout with thermal and mechanical reliability superior to SOP. |
| I/O interface | TTL-compatible inputs/outputs; interoperates directly with legacy MCU GPIOs and address/data buses without level shifters. |
Pinout & Package
Package: 32-pin plastic sTSOP (PTSA0032KB-A), 8 mm × 13.4 mm footprint, normal-bend lead configuration, tray or embossed tape delivery.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address inputs | 17-bit address bus supporting full 128k-word decoding; A16 enables 1-Mb addressing without external demux. |
| DQ0–DQ7 | Data I/O | Bi-directional 8-bit data bus with three-state outputs; supports shared bus architectures and OR-tie for multi-device readout. |
| CS1#, CS2 | Chip selects | CS1# (active-low) and CS2 (active-high) enable hierarchical memory mapping and bank selection without glue logic. |
| WE#, OE# | Control inputs | WE# controls write strobe timing; OE# gates output drivers to prevent bus contention during reads or idle cycles. |
| Vcc, Vss | Power terminals | Single 2.7–3.6V supply; Vss is dedicated ground reference - decoupling required per JEDEC sTSOP guidelines. |
| NC | No-connect | Pin 1 (NC) is internally unconnected; must be left floating or tied to ground per Renesas layout recommendations. |
Key Features
| Feature | Design Value |
|---|---|
| No clock, no refresh | Eliminates system-level timing constraints and reduces MCU firmware overhead - ideal for ultra-low-power sleep modes. |
| Low-voltage operation | 2.7–3.6V range aligns with primary battery chemistries (e.g., 2×AA, LiFePO₄), avoiding intermediate regulators and associated losses. |
| 0.6 µA standby current | Enables >10-year battery life in coin-cell-powered devices (e.g., smart sensors) when paired with proper CS control sequencing. |
| OR-tie capable outputs | Allows multiple R1LV0108ESA-5SI#S1 devices to share a single data bus without external bus transceivers - reduces BOM count. |
| Industrial temp grade | Qualified from -40°C to +85°C per Renesas Standard quality grade, supporting deployment in factory automation and energy metering. |
Applications
| Portable Medical Monitors | Industrial PLC Data Buffers |
|---|---|
Use Scenario: Continuous ECG waveform capture and local storage in handheld patient monitors powered by rechargeable Li-ion batteries. IC Role / Device Role / Timing Role: Non-volatile buffer storing 30+ seconds of raw analog samples prior to wireless upload; retains data during brief power interruptions. Use Value: 0.6 µA standby current extends operational runtime between charges; 55 ns access enables real-time sampling at 1 kSPS without CPU intervention. | Use Scenario: Local history logging of sensor inputs (temperature, pressure, flow) in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: High-reliability scratchpad memory for cyclic data buffering and alarm event timestamping in harsh industrial environments. Use Value: -40°C to +85°C rating ensures stable operation inside unconditioned control cabinets; sTSOP package withstands vibration and thermal cycling. |
| Smart Utility Meters | Automotive Body Control Modules |
Use Scenario: Tamper-resistant energy consumption logging in ANSI C12.22-compliant electricity meters with backup capacitor hold-up. IC Role / Device Role / Timing Role: Primary non-refresh memory holding billing cycle data, firmware update staging, and cryptographic keys during mains dropout. Use Value: Data retention down to 2.0V Vcc allows >10-second data preservation on capacitor backup; TTL I/O simplifies interface to metering SoCs. | Use Scenario: Door module memory for window position learning, mirror calibration, and fault code storage in 12V automotive systems. IC Role / Device Role / Timing Role: Low-power SRAM retaining user preferences and diagnostic snapshots across ignition cycles without EEPROM wear-out. Use Value: 2.7–3.6V operation covers full automotive battery range (cold crank to load dump); 32-pin sTSOP fits constrained under-dash space. |
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-10TLI | 1M × 16-bit organization, 10 ns access, 3.3V only, 48-pin TSOP; higher density but wider bus and faster speed. | Requires 16-bit data path and tighter timing margins; unsuitable for 8-bit MCU interfaces without data masking. | Select only if migrating to 16-bit architecture and needing sub-10 ns performance - not drop-in compatible. |
| AS6C1008-55ZIN | 1M × 8-bit, 55 ns access, 2.7–3.6V, -40°C to +85°C, 32-pin SOJ; same density/speed but SOJ package limits modern reflow compatibility. | SOJ leads require wave-solder or specialized rework; lacks sTSOP's thermal performance and board area efficiency. | Consider only for legacy repair or SOJ-only assembly lines - sTSOP offers better manufacturability and thermal dissipation. |
Compared with IS61LV102416L-10TLI and AS6C1008-55ZIN, the R1LV0108ESA-5SI#S1 uniquely balances 8-bit bus simplicity, industrial temperature compliance, sTSOP packaging, and sub-µA standby - making it optimal for cost-sensitive, space-constrained, battery-aware embedded systems where pin-for-pin upgrade paths are unavailable.
Availability
R1LV0108ESA-5SI#S1 is available at Aetrix Electronics and suitable for portable medical monitors, industrial PLC data buffers, smart utility meters, and automotive body control modules requiring stable component supply across extended product lifecycles.
Supply support for R1LV0108ESA-5SI#S1 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.
The R1LV0108E Series was developed as a low-power, high-reliability SRAM family targeting battery-operated and industrial-grade embedded systems where data integrity, minimal power draw, and long-term supply stability are mandatory design requirements.
FAQ
What is the maximum operating frequency supported by the R1LV0108ESA-5SI#S1?
The R1LV0108ESA-5SI#S1 does not operate on a clock signal - it is a static RAM with asynchronous timing. Its 55 ns access time supports effective interfacing with microcontrollers running up to ~16 MHz without wait states. Maximum usable bus frequency depends on system-level timing margins including address setup/hold and control signal propagation delays, all defined in the AC Characteristics table of the R10DS0152EJ0100 datasheet.
Does the R1LV0108ESA-5SI#S1 require external refresh circuitry?
No, the R1LV0108ESA-5SI#S1 is a true static RAM and requires no refresh cycles or external refresh circuitry. Its CMOS latch-based memory cells retain data indefinitely as long as power is applied and control signals meet specification - a key advantage over DRAM for low-complexity embedded systems. This eliminates MCU overhead and timing-critical refresh windows.
Can the R1LV0108ESA-5SI#S1 retain data during brown-out conditions?
Yes, the R1LV0108ESA-5SI#S1 supports data retention down to 2.0V Vcc when placed in standby mode via CS2 ≤ 0.2V or CS1# ≥ Vcc−0.2V. At 25°C, it draws only 0.6 µA typical retention current, enabling reliable data hold during brief brown-outs or capacitor-backed power loss events lasting several seconds - critical for metering and safety-critical logging.
What is the meaning of "-5SI" in the R1LV0108ESA-5SI#S1 part number?
In R1LV0108ESA-5SI#S1, "-5" denotes 55 ns access time, "S" indicates sTSOP package, "I" specifies industrial temperature range (-40°C to +85°C), and "#S1" signifies embossed tape packaging (1000 pcs/reel). The "A" in "ESA" identifies the sTSOP variant within the R1LV0108E family, distinguishing it from SOP (SN) and TSOP (SF) versions.
Is the R1LV0108ESA-5SI#S1 RoHS compliant and lead-free?
Yes, the R1LV0108ESA-5SI#S1 is RoHS compliant and lead-free, conforming to EU Directive 2011/65/EU. Renesas confirms this in the environmental compliance section of the R10DS0152EJ0100 datasheet and product change notices. The sTSOP package uses matte tin lead finish, and all materials meet halogen-free and REACH SVHC requirements as documented in Renesas's official material declarations.
R1LV0108ESA-5SI#S1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-TFSOP (0.465", 11.80mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 55ns
- Access Time:
- 55 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
R1LV0108ESA-5SI#S1 FAQ
1.How can I place an order for R1LV0108ESA-5SI#S1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1LV0108ESA-5SI#S1 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 R1LV0108ESA-5SI#S1 reliable?
The price and inventory of R1LV0108ESA-5SI#S1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1LV0108ESA-5SI#S1 is usually 5 days.
3.What payment methods are accepted for R1LV0108ESA-5SI#S1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LV0108ESA-5SI#S1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1LV0108ESA-5SI#S1?
R1LV0108ESA-5SI#S1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1LV0108ESA-5SI#S1 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 R1LV0108ESA-5SI#S1?
For technical support, including R1LV0108ESA-5SI#S1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LV0108ESA-5SI#S1 requirements.
6.How does Aetrix verify that R1LV0108ESA-5SI#S1 is sourced from the original manufacturer or authorized distributors?
All R1LV0108ESA-5SI#S1 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 R1LV0108ESA-5SI#S1 meets industry standards.
7.What is the process for return or replacement of R1LV0108ESA-5SI#S1?
All R1LV0108ESA-5SI#S1 units undergo pre-shipment inspection (PSI). If there is an issue with R1LV0108ESA-5SI#S1, 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 R1LV0108ESA-5SI#S1 part is unused and in its original packaging.
Return procedure for R1LV0108ESA-5SI#S1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1LV0108ESA-5SI#S1 Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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