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Renesas R1LV0108ESP-7SR#B0
- Part No.:
- R1LV0108ESP-7SR#B0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-SOIC (0.450", 11.40mm Width)
- Datasheet:
-
R1LV0108ESP-7SR#B0.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,245
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Product details
Overview
R1LV0108ESP-7SR#B0 from Renesas Electronics is a 1Mb low-power static RAM (128k × 8-bit) in 32-pin SOP packaging, operating from 2.7V to 3.6V with 70ns access time and 0.33mA max standby current at +70°C. It features TTL-compatible I/O, dual chip select (CS1#/CS2), common data I/O, and no refresh requirement-ideal for battery-backed memory in portable instrumentation and industrial control panels.
For engineers reviewing the R1LV0108ESP-7SR#B0 datasheet, R1LV0108ESP-7SR#B0 pinout, R1LV0108ESP-7SR#B0 application, or R1LV0108ESP-7SR#B0 equivalent, key selection criteria include its 70ns read timing, 2.7–3.6V single-supply operation, 32-pin SOP mechanical compatibility, and low-standby-current behavior under battery-retention conditions.
Technical Context
The R1LV0108ESP-7SR#B0 implements a fully static CMOS memory array with 128k-word × 8-bit organization, decoded via separate row/column address paths and driven by TTL-level inputs. Its dual chip select architecture (CS1# active-low, CS2 active-high) enables seamless memory expansion without external logic.
Operation requires no clocks or refresh cycles; data retention is maintained down to 2.0V Vcc when CS2 ≤ 0.2V or CS1# ≥ Vcc−0.2V. Output drivers support three-state control via OE# and OR-tie capability, while WE# and address setup govern write timing with tAS = 0ns and tWP = 50ns min.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1Mb (131,072 × 8-bit); supports byte-wide data bus interfacing without multiplexing. |
| Access time | 70ns max (tAA, tACS1, tACS2); ensures compatibility with 14MHz microcontroller bus cycles. |
| Supply voltage | 2.7–3.6V single supply; eliminates need for level shifters in 3.3V systems. |
| Standby current | ≤0.33mA at +70°C; enables multi-week battery backup in power-critical applications. |
| Data retention Vcc | 2.0–3.6V; allows memory hold during brown-out or sleep-mode battery operation. |
| Input/Output interface | TTL-compatible (VIH = 2.0V, VOL = 0.4V); interoperable with legacy 5V-tolerant microcontrollers and FPGAs. |
| Package | 32-pin SOP (525-mil, PRSP0032DA-A); standard footprint for manual assembly and reflow compatibility. |
Pinout & Package
32-pin plastic SOP (PRSP0032DA-A, 525-mil width) with gull-wing leads, JEDEC MS-012AC compliant. Pin 1 index located at top-left corner when notch faces upward.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Vcc | Power supply | Primary 2.7–3.6V input; decoupling capacitor required within 10mm of pin. |
| Vss | Ground | Signal and power return; must be connected to low-impedance system ground plane. |
| A0–A16 | Address inputs | 17-bit address bus supporting full 128k-word decoding; A16 is MSB. |
| DQ0–DQ7 | Data I/O | Bi-directional 8-bit data bus; high-impedance when CS1# high or OE# high. |
| CS1# | Chip select 1 | Active-low primary enable; device selected only when CS1# = L and CS2 = H. |
| CS2 | Chip select 2 | Active-high secondary enable; used with CS1# for bank selection or expansion. |
| WE# | Write enable | Active-low write strobe; latches DQ data on falling edge when CS1# = L and CS2 = H. |
| OE# | Output enable | Active-low output control; disables DQ drivers to prevent bus contention. |
| NC | No connection | Pin 1 (top-left, notch side); must remain unconnected and un-bonded. |
Key Features
| Feature | Design Value |
|---|---|
| No refresh required | Eliminates external refresh circuitry and timing overhead-reduces BOM count and firmware complexity. |
| Low standby current | 1µA typical at 3.0V/25°C; extends battery life in always-on monitoring devices beyond 5 years. |
| Dual chip select logic | CS1# (active-low) + CS2 (active-high) enables 2-chip decode for 256k-byte expansion without glue logic. |
| Three-state OR-tie outputs | DQ pins drive high-impedance state when disabled, allowing direct wire-OR connection of multiple SRAMs on shared bus. |
| TTL-compatible signaling | Meets VIH ≥ 2.0V and VOL ≤ 0.4V specs-interoperable with 3.3V and mixed-voltage 5V/3.3V systems. |
Applications
| Portable Medical Monitor | Industrial PLC Data Logger |
|---|---|
Use Scenario: Battery-powered ECG front-end unit storing waveform snapshots during intermittent telemetry transmission. IC Role / Device Role / Timing Role: Non-volatile data buffer holding up to 128kB of raw sensor samples between wireless uploads. Use Value: 70ns access time enables real-time capture at 14ksps; 1µA standby current permits >3-year coin-cell operation. | Use Scenario: Standalone DIN-rail PLC recording machine status events and sensor thresholds over 72-hour power outage. IC Role / Device Role / Timing Role: Retention memory preserving critical alarm logs and configuration during AC mains failure. Use Value: Data retention down to 2.0V Vcc ensures integrity through brown-outs; SOP package simplifies field-replaceable module design. |
| Automotive Infotainment Head Unit | Smart Energy Meter |
Use Scenario: Secondary display controller caching UI assets and recent navigation history in vehicle infotainment system. IC Role / Device Role / Timing Role: Fast-access scratchpad memory for GUI rendering engine, isolated from main DDR bus. Use Value: 32-pin SOP footprint fits tight PCB space; 2.7–3.6V range matches automotive 3.3V rail tolerance. | Use Scenario: AMI meter retaining tariff schedules, consumption history, and tamper logs during grid disconnection. IC Role / Device Role / Timing Role: Secure non-refresh memory for regulatory-compliant data archiving with guaranteed 10-year retention. Use Value: 0.33mA max ISB at +70°C meets IEC 62056 thermal derating; RoHS-compliant SOP supports lead-free reflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61LV1024-70TQLI | 70ns access, 32-pin TSOP-II, 3.3V-only (3.135–3.465V), 2µA standby at +85°C | Higher standby current; TSOP-II footprint incompatible with SOP layout | Select only if board uses TSOP-II and tighter Vcc regulation is available. |
| AS6C1008-70SCN | 70ns access, 32-pin SOP, 2.7–3.6V, 1µA standby at +70°C, but no CS2 pin | Lacks dual chip select; limits memory expansion flexibility | Choose when simple single-bank design suffices and CS2 functionality is unused. |
Compared with IS61LV1024-70TQLI and AS6C1008-70SCN, the R1LV0108ESP-7SR#B0 uniquely combines SOP packaging, dual chip select, and sub-1µA standby at 3.0V-making it optimal for cost-sensitive, battery-backed designs requiring expandable memory architecture.
Availability
R1LV0108ESP-7SR#B0 is available at Aetrix Electronics and suitable for portable medical monitors, industrial PLC data loggers, automotive infotainment head units, and smart energy meters requiring stable component supply across extended production lifecycles.
Supply support for R1LV0108ESP-7SR#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.
The R1LV0108E Series was designed as a low-voltage, low-power SRAM family targeting battery-operated and retention-critical applications where simplicity, reliability, and long-term supply stability are essential.
FAQ
What is the maximum operating temperature range for the R1LV0108ESP-7SR#B0?
The R1LV0108ESP-7SR#B0 is rated for commercial temperature operation from 0°C to +70°C, as indicated by the "R" suffix in its ordering code. This range applies to both functional operation and data retention, with ISB rising to 0.33mA max at +70°C. The device is not qualified for industrial −40°C to +85°C use-those variants carry the "I" suffix (e.g., R1LV0108ESP-7SI#B0).
Does the R1LV0108ESP-7SR#B0 require an external clock or refresh signal?
No, the R1LV0108ESP-7SR#B0 is a fully static RAM and requires no external clock or periodic refresh cycles. Its CMOS cell design retains data indefinitely as long as power is applied and control signals meet timing specifications. This eliminates refresh overhead in firmware and simplifies system timing design-key for ultra-low-power applications.
Can the R1LV0108ESP-7SR#B0 be used with a 3.3V microcontroller that has 5V-tolerant I/O?
Yes, the R1LV0108ESP-7SR#B0 is TTL-compatible with VIH = 2.0V min and VOL = 0.4V max, making it directly interoperable with 3.3V microcontrollers-even those with 5V-tolerant inputs. No level-shifting circuitry is needed, as its input thresholds align with standard 3.3V logic families and its outputs drive cleanly into 3.3V receiver thresholds.
What is the purpose of the NC pin on the R1LV0108ESP-7SR#B0 SOP package?
The NC (No Connect) pin on the R1LV0108ESP-7SR#B0 is Pin 1, located at the top-left corner adjacent to the package notch. It is internally unconnected and must remain floating-no trace, pad, or solder should connect to it. This pin serves solely as a mechanical alignment marker and has no electrical function; connecting it risks unintended coupling or latch-up.
How does the dual chip select (CS1# and CS2) improve memory expansion with the R1LV0108ESP-7SR#B0?
The R1LV0108ESP-7SR#B0's CS1# (active-low) and CS2 (active-high) allow two independent enable conditions: CS1# = L + CS2 = H selects the device, while other combinations place outputs in high-Z. This enables straightforward 2-chip expansion-e.g., using a single address line to toggle CS2 across two devices-eliminating need for external decoders or additional logic gates in multi-SRAM systems.
R1LV0108ESP-7SR#B0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-SOIC (0.450", 11.40mm Width)
- Packaging:
- Tube
- 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-SOP
R1LV0108ESP-7SR#B0 FAQ
1.How can I place an order for R1LV0108ESP-7SR#B0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1LV0108ESP-7SR#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 R1LV0108ESP-7SR#B0 reliable?
The price and inventory of R1LV0108ESP-7SR#B0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1LV0108ESP-7SR#B0 is usually 5 days.
3.What payment methods are accepted for R1LV0108ESP-7SR#B0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LV0108ESP-7SR#B0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1LV0108ESP-7SR#B0?
R1LV0108ESP-7SR#B0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1LV0108ESP-7SR#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 R1LV0108ESP-7SR#B0?
For technical support, including R1LV0108ESP-7SR#B0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LV0108ESP-7SR#B0 requirements.
6.How does Aetrix verify that R1LV0108ESP-7SR#B0 is sourced from the original manufacturer or authorized distributors?
All R1LV0108ESP-7SR#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 R1LV0108ESP-7SR#B0 meets industry standards.
7.What is the process for return or replacement of R1LV0108ESP-7SR#B0?
All R1LV0108ESP-7SR#B0 units undergo pre-shipment inspection (PSI). If there is an issue with R1LV0108ESP-7SR#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 R1LV0108ESP-7SR#B0 part is unused and in its original packaging.
Return procedure for R1LV0108ESP-7SR#B0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1LV0108ESP-7SR#B0 Tags
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