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Renesas R1LP0108ESF-7SR#S0
- Part No.:
- R1LP0108ESF-7SR#S0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
R1LP0108ESF-7SR#S0.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32TSOP I
- Quantity:
- Payment:
- Shipping:
Inventory:3,361
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Product details
Overview
R1LP0108ESF-7SR#S0 from Renesas Electronics is a 1Mb low-power static RAM (128k × 8-bit) in 32-pin TSOP package, operating on single 4.5–5.5V supply with 70 ns access time and typical standby current of 0.6 µA at 5.0V/25°C. It supports TTL-compatible I/O, no-refresh operation, and dual chip select (CS1#, CS2) for easy memory expansion - ideal for battery-backed embedded controllers and portable instrumentation requiring reliable non-volatile data retention during power loss.
For engineers reviewing the R1LP0108ESF-7SR#S0 datasheet, R1LP0108ESF-7SR#S0 pinout, R1LP0108ESF-7SR#S0 application, or R1LP0108ESF-7SR#S0 equivalent, key selection criteria include its 70 ns read timing, ultra-low ISB1 standby current, dual-CS architecture for bank selection, and TSOP-32 mechanical compatibility with legacy board layouts in industrial HMI and medical data loggers.
Technical Context
This device implements a fully static CMOS memory array (128k-word × 8-bit) with asynchronous parallel interface logic. Address decoding uses separate row/column decoders, and data I/O employs three-state buffers controlled by OE# and chip select states to prevent bus contention.
Two independent chip select inputs (CS1#, CS2) enable hierarchical memory mapping: CS2 gates internal buffers (address, WE#, OE#, DQ), while CS1# enables core array access only when CS2 is high - supporting both full-chip and partial-bank disable modes for dynamic power management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Mb (131,072 × 8-bit); provides sufficient buffer space for real-time sensor data capture without external refresh circuitry. |
| Access time | 70 ns max; ensures compatibility with 14 MHz microcontroller buses without wait states in standard mode. |
| Supply voltage | 4.5–5.5 V; operates across full industrial 5V rail tolerance, eliminating need for dedicated LDO regulation. |
| Standby current | 0.6 µA typical at 5.0V/25°C; extends battery life to years in always-on backup memory applications. |
| I/O interface | TTL-compatible inputs/outputs; interfaces directly with legacy 5V MCUs and FPGAs without level-shifting components. |
| Data retention Vcc | 2.0–5.5 V; maintains stored data down to 2.0V supply, enabling seamless transition to battery backup mode. |
| Operating temp | 0 to +70°C; qualified for commercial-grade embedded systems including point-of-sale terminals and test equipment. |
Pinout & Package
Package: 32-pin plastic TSOP (8 mm × 20 mm, normal-bend type), compliant with JEDEC MO-141AB, suitable for surface-mount reflow assembly and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address input | 17-bit address bus supporting full 128k-word addressing; A16 is MSB for 1Mb capacity. |
| DQ0–DQ7 | Data I/O | 8-bit bidirectional data bus with three-state output control via OE# and chip select states. |
| CS1#, CS2 | Chip select | CS2 enables internal buffers; CS1# enables memory array only when CS2 is high - allows hierarchical bank selection. |
| WE#, OE# | Control inputs | WE# controls write strobe; OE# enables output drivers independently of CS state to avoid bus contention. |
| Vcc, Vss | Power/Ground | Single 5V supply pair; no separate Vpp or Vbb required - simplifies power delivery design. |
| NC | No connection | Pin 1 (NC) is unconnected; must remain floating - no pull-up/down or routing required. |
Key Features
| Feature | Design Value |
|---|---|
| No refresh required | Fully static architecture eliminates external refresh controller, reducing BOM count and firmware overhead in microcontroller-based systems. |
| OR-tie capability | Three-state outputs support wired-OR bus configurations - enables direct connection of multiple R1LP0108ESF-7SR#S0 devices to shared data lines without external logic. |
| Dual chip select logic | CS1#/CS2 hierarchy allows partial memory disable: CS2=low disables all buffers (deep standby), while CS1#=high + CS2=high enters low-current retention mode. |
| Low-voltage data retention | Maintains valid data at Vcc ≥ 2.0V - supports seamless switchover to backup battery without data loss during main power interruption. |
| TTL-compatible signaling | Meets VIH ≥ 2.2V and VIL ≤ 0.8V thresholds - interoperates with standard 5V logic families without interface ICs or resistive dividers. |
Applications
| Industrial Data Logger | Medical Patient Monitor |
|---|---|
Use Scenario: Continuous acquisition of temperature, pressure, and ECG waveforms at 1 kHz sampling rate with local buffering before wireless upload. IC Role / Device Role / Timing Role: Primary SRAM buffer storing 30+ seconds of raw sensor data; operates in continuous read/write cycles with no refresh overhead. Use Value: 70 ns access time enables real-time write without MCU wait states; 0.6 µA standby current preserves battery charge during idle periods between acquisitions. | Use Scenario: Non-volatile storage of alarm history, calibration coefficients, and last-known vital signs during AC power failure. IC Role / Device Role / Timing Role: Battery-backed memory holding critical configuration and event logs; retains data at Vcc ≥ 2.0V during brownout conditions. Use Value: Dual CS architecture allows system MCU to isolate R1LP0108ESF-7SR#S0 into ultra-low-power retention mode (<1 µA) while maintaining full data integrity. |
| Point-of-Sale Terminal | Test & Measurement Equipment |
Use Scenario: Caching of transaction receipts, inventory updates, and tax tables in offline retail kiosks powered by rechargeable Li-ion packs. IC Role / Device Role / Timing Role: Shared memory resource accessed by ARM Cortex-M4 host and secure element; managed via CS1#/CS2 partitioning. Use Value: OR-tie capability permits direct connection of multiple R1LP0108ESF-7SR#S0 units to same data bus - reduces interconnect complexity in multi-module designs. | Use Scenario: Storing oscilloscope waveform captures, FFT results, and instrument calibration profiles in benchtop analyzers. IC Role / Device Role / Timing Role: High-speed buffer interfacing with FPGA-based acquisition engine; synchronized via WE#/OE# handshaking. Use Value: 5.5V absolute maximum rating tolerates transient overvoltage on 5V rails - improves robustness in lab environments with noisy power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power parallel SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61LV10248AL-70TQLI | 70 ns access, 3.3V-only supply (2.7–3.6V), 32-pin TSOP; lower standby current (1 µA typ), but incompatible 5V I/O. | Requires level translation for 5V MCU interfaces; suited for new 3.3V-only designs with tighter power budgets. | Select only if migrating entire system to 3.3V logic and accepting redesign effort for voltage translation. |
| AS6C1008-70SCN | 70 ns access, 5V supply (4.5–5.5V), 32-pin SOP; higher standby current (5 µA typ), no dual-CS architecture. | Lacks CS2-controlled deep-standby mode; simpler control but less granular power management than R1LP0108ESF-7SR#S0. | Prefer for cost-sensitive applications where ultra-low standby is not critical and SOP footprint is acceptable. |
Compared with IS61LV10248AL-70TQLI and AS6C1008-70SCN, the R1LP0108ESF-7SR#S0 uniquely combines 5V TTL compatibility, dual-CS power gating, and sub-µA retention current - making it the only option that preserves legacy 5V interface integrity while delivering battery-life-critical standby efficiency.
Availability
R1LP0108ESF-7SR#S0 is available at Aetrix Electronics and suitable for industrial data loggers, medical patient monitors, point-of-sale terminals, and test & measurement equipment requiring stable component supply across extended production lifecycles.
Supply support for R1LP0108ESF-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, and memory solutions for industrial, automotive, and infrastructure markets.
The R1LP0108E Series was designed as low-voltage, low-power parallel SRAMs targeting battery-operated and battery-backup applications where simplicity, reliability, and long-term data retention are essential.
FAQ
What is the maximum operating temperature range for R1LP0108ESF-7SR#S0?
The R1LP0108ESF-7SR#S0 is rated for 0 to +70°C ambient operation, as indicated by the "R" suffix in its ordering code. This commercial-grade temperature range is validated per the DC and AC specifications in the R10DS0151EJ0100 datasheet Rev.1.00, and applies to all electrical parameters including 70 ns access time and 0.6 µA standby current.
Does R1LP0108ESF-7SR#S0 require an external clock or refresh signal?
No, the R1LP0108ESF-7SR#S0 is a fully static RAM and requires no external clock or periodic refresh cycles. Its internal CMOS latch-based memory cells retain data indefinitely as long as Vcc remains within 4.5–5.5V and appropriate chip select conditions are met - a key advantage over DRAM in embedded control applications.
Can R1LP0108ESF-7SR#S0 retain data when Vcc drops below 4.5V?
Yes, the R1LP0108ESF-7SR#S0 supports data retention down to Vcc = 2.0V, provided CS2 is held ≤ 0.2V or CS1# is held ≥ Vcc−0.2V with CS2 ≥ Vcc−0.2V. At 3.0V and 25°C, typical data retention current is 0.6 µA, enabling multi-year battery backup in properly designed systems.
What is the function of the NC pin on R1LP0108ESF-7SR#S0?
Pin 1 of the R1LP0108ESF-7SR#S0 is designated NC (No Connection) and must remain unconnected - neither tied to Vcc, Vss, nor any control signal. This pin has no internal bond wire or circuit connection, and routing or termination may cause unintended electrical behavior per the R10DS0151EJ0100 datasheet.
How does the dual chip select (CS1# and CS2) architecture improve power management in R1LP0108ESF-7SR#S0?
The CS2 input gates all internal buffers (address, data, control), so pulling CS2 low places the R1LP0108ESF-7SR#S0 into deep standby (ISB ≤ 3 mA). When CS2 is high, CS1# controls array access - allowing selective retention mode (ISB1 = 0.6 µA typ) without disabling I/O buffers, enabling faster wake-up and flexible power-state transitions.
R1LP0108ESF-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:
- 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:
- 70ns
- Access Time:
- 70 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP I
R1LP0108ESF-7SR#S0 FAQ
1.How can I place an order for R1LP0108ESF-7SR#S0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1LP0108ESF-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 R1LP0108ESF-7SR#S0 reliable?
The price and inventory of R1LP0108ESF-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 R1LP0108ESF-7SR#S0 is usually 5 days.
3.What payment methods are accepted for R1LP0108ESF-7SR#S0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LP0108ESF-7SR#S0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1LP0108ESF-7SR#S0?
R1LP0108ESF-7SR#S0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1LP0108ESF-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 R1LP0108ESF-7SR#S0?
For technical support, including R1LP0108ESF-7SR#S0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LP0108ESF-7SR#S0 requirements.
6.How does Aetrix verify that R1LP0108ESF-7SR#S0 is sourced from the original manufacturer or authorized distributors?
All R1LP0108ESF-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 R1LP0108ESF-7SR#S0 meets industry standards.
7.What is the process for return or replacement of R1LP0108ESF-7SR#S0?
All R1LP0108ESF-7SR#S0 units undergo pre-shipment inspection (PSI). If there is an issue with R1LP0108ESF-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 R1LP0108ESF-7SR#S0 part is unused and in its original packaging.
Return procedure for R1LP0108ESF-7SR#S0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1LP0108ESF-7SR#S0 Tags
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