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Renesas R1LP0108ESF-5SI#S1
- Part No.:
- R1LP0108ESF-5SI#S1
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
R1LP0108ESF-5SI#S1.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32TSOP I
- Quantity:
- Payment:
- Shipping:
Inventory:895
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Product details
Overview
R1LP0108ESF-5SI#S1 from Renesas Electronics is a 1Mb (131,072 × 8-bit) low-power static RAM with 55 ns access time, single 4.5–5.5 V supply, and -40°C to +85°C industrial temperature range. It features TTL-compatible I/O, no refresh requirement, and dual chip select (CS1#, CS2) for easy memory expansion in embedded controllers and battery-backed systems.
For engineers reviewing the R1LP0108ESF-5SI#S1 datasheet, R1LP0108ESF-5SI#S1 pinout, R1LP0108ESF-5SI#S1 application, or R1LP0108ESF-5SI#S1 equivalent, key selection criteria include its 0.6 µA typical standby current at 5.0 V, 32-pin TSOP package, three-state outputs with OR-tie capability, and data retention down to 2.0 V.
Technical Context
The R1LP0108ESF-5SI#S1 implements a fully static 128k-word × 8-bit memory array using Renesas's 0.15 µm CMOS process, with integrated address decoder, sense/write amplifier, and clock generator. Its dual chip select architecture (CS1# active-low, CS2 active-high) enables hierarchical memory mapping without external logic.
Operation requires no clocks or refresh cycles; data integrity is maintained as long as Vcc ≥ 2.0 V and appropriate chip select conditions are met. Standby current drops to 0.6 µA (typ.) at 25°C when CS2 is low or CS1# is high, supporting ultra-low-power battery backup modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mb (131,072 words × 8 bits) - supports byte-wide data buses in microcontroller-based systems. |
| Access Time | 55 ns - enables direct interface with legacy 8/16-bit MCUs operating up to ~12 MHz bus frequency. |
| Supply Voltage | 4.5–5.5 V - compatible with standard 5 V logic rails and tolerant of ±10% regulation variation. |
| Standby Current | 0.6 µA (typ. at 5.0 V, 25°C) - allows multi-year battery backup in real-time clock or configuration memory applications. |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade deployment in factory automation and outdoor equipment. |
| Data Retention VCC | 2.0 V minimum - retains stored data during brown-out or battery-switchover without external supervision. |
| I/O Interface | TTL-compatible inputs/outputs - eliminates level-shifting requirements when interfacing with 5 V microcontrollers and peripherals. |
Pinout & Package
Package: 32-pin plastic TSOP (8 mm × 20 mm, normal-bend type), part code PTSA0032KA-A (32P3H-E).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address input | 17-bit address bus supporting full 131,072-word addressing; A16 is MSB. |
| DQ0–DQ7 | Bi-directional data I/O | Common data bus with three-state output control via OE# and chip selects; supports OR-tie for shared bus architectures. |
| 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# to support multi-chip memory banks without glue logic. |
| WE# | Write enable (active-low) | Controls write cycle initiation; low pulse latches data on DQ0–DQ7 into memory array. |
| OE# | Output enable (active-low) | Gates output drivers; prevents bus contention when multiple devices share DQ lines. |
| Vcc | Power supply | +4.5 V to +5.5 V main supply; powers all internal logic and memory array. |
| Vss | Ground | Reference return path for all signals and power; must be low-impedance connection. |
| NC | No connection | Pin 1 (top-left corner in standard TSOP orientation); must remain unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| No refresh required | Eliminates need for external refresh circuitry or CPU overhead, simplifying system design and reducing BOM count. |
| Dual chip select (CS1#, CS2) | Enables seamless memory expansion across multiple R1LP0108E devices using simple address decoding-no additional logic gates needed. |
| 0.6 µA standby current (typ.) | Extends battery life in backup applications; supports >10-year retention on coin-cell batteries under typical conditions. |
| Three-state outputs with OR-tie capability | Allows direct wire-OR connection of multiple SRAM outputs onto a common data bus without external buffers or diodes. |
| 2.0 V data retention threshold | Maintains stored contents during brown-out events or battery switchover, enabling reliable nonvolatile operation without EEPROM or flash. |
Applications
| Industrial PLC Data Buffer | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing runtime I/O state and calibration tables in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Byte-accessible, fast-read/write SRAM serving as primary working memory for ladder logic execution and sensor data staging. Use Value: 55 ns access time ensures deterministic response within PLC scan cycles; -40°C to +85°C rating guarantees reliability across ambient extremes. |
Use Scenario: Holding patient-specific therapy parameters and device configuration in portable infusion pumps and diagnostic monitors. IC Role / Device Role / Timing Role: Battery-backed configuration store retaining critical settings during power loss or battery replacement. Use Value: 0.6 µA standby current and 2.0 V data retention enable >5-year backup on CR2032 cells without periodic refresh. |
| Automotive Body Control Module | Test & Measurement Equipment FIFO |
Use Scenario: Caching door lock status, lighting profiles, and seat position data in automotive body control units (BCUs) with limited PCB space. IC Role / Device Role / Timing Role: Low-profile 32-pin TSOP SRAM providing fast, deterministic access for real-time control loops and CAN message buffering. Use Value: 8 mm × 20 mm TSOP footprint fits constrained automotive modules; TTL compatibility avoids level shifters in 5 V CAN subsystems. |
Use Scenario: Acting as acquisition buffer in digital oscilloscopes and logic analyzers capturing high-speed serial data streams. IC Role / Device Role / Timing Role: High-speed, no-refresh memory staging raw samples before DSP processing or USB transfer. Use Value: 55 ns read/write cycle supports sustained 12+ MSPS sampling rates; three-state outputs simplify integration with FPGA-based capture engines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61LV102416L-10TLI | 1 Mbit × 16 organization, 10 ns access, 3.3 V supply only; 44-pin TSOP-II package. | Requires 16-bit data path and 3.3 V rail; unsuitable for 5 V or byte-wide interfaces. | Select only if migrating to 3.3 V systems and needing wider data bus; not drop-in compatible. |
| AS6C1008-55PCN | 1 Mbit × 8, 55 ns access, 5 V supply, but 32-pin SOP (not TSOP); 2 µA standby current (typ.) at 5 V. | Larger SOP footprint; higher standby draw reduces battery life in backup use cases. | Acceptable for cost-sensitive 5 V designs where board space permits SOP; avoid where low-ISB or TSOP form factor is mandatory. |
Compared with IS61LV102416L-10TLI and AS6C1008-55PCN, the R1LP0108ESF-5SI#S1 uniquely combines 5 V operation, 32-pin TSOP packaging, 55 ns speed, and sub-µA standby in a single industrial-grade part-making it optimal for legacy 5 V embedded systems requiring compact, battery-resilient memory.
Availability
R1LP0108ESF-5SI#S1 is available at Aetrix Electronics and suitable for industrial automation, medical instrumentation, and automotive body electronics requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for R1LP0108ESF-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 global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.
The R1LP0108E Series was designed specifically for low-voltage, low-power static RAM applications in battery-operated and battery-backup systems where simplicity, reliability, and long-term data retention are critical.
FAQ
What is the maximum operating frequency supported by the R1LP0108ESF-5SI#S1?
The R1LP0108ESF-5SI#S1 does not operate on a clock signal-it is a fully static RAM with no internal timing reference. Its 55 ns access time supports reliable read/write cycles in systems with bus frequencies up to approximately 12 MHz, assuming proper setup/hold timing margins. The R1LP0108ESF-5SI#S1 requires no clock input or refresh circuitry, making it suitable for asynchronous microcontroller interfaces.
Does the R1LP0108ESF-5SI#S1 support true 5 V TTL compatibility on all pins?
Yes, the R1LP0108ESF-5SI#S1 specifies VIH = 2.2 V (min) and VIL = 0.8 V (max) across the full 4.5–5.5 V supply range, meeting standard TTL voltage thresholds. Input leakage remains ≤1 µA, and outputs drive VOH ≥ 2.4 V at –1 mA and VOL ≤ 0.4 V at 2 mA-ensuring robust interoperability with legacy 5 V logic families without level translation. This applies to all address, control, and data pins of the R1LP0108ESF-5SI#S1.
Can the R1LP0108ESF-5SI#S1 retain data during complete power removal?
No-the R1LP0108ESF-5SI#S1 requires continuous Vcc ≥ 2.0 V to retain data. It supports low-voltage data retention (not zero-volt), meaning it holds memory contents during brown-out or battery switchover events-but not after full power loss. For true nonvolatile storage, external backup sources (e.g., supercapacitors or coin cells tied to Vcc) must maintain voltage above 2.0 V. The R1LP0108ESF-5SI#S1 achieves 0.6 µA standby current at 5.0 V, enabling multi-year retention on small batteries.
What is the function of the NC pin on the R1LP0108ESF-5SI#S1 TSOP package?
Pin 1 of the R1LP0108ESF-5SI#S1 TSOP package is designated NC (No Connection) and must remain unconnected-neither tied to Vcc, Vss, nor any signal. It is an unused bond pad with no internal connection. Routing traces to or placing solder on this pin may cause mechanical stress or unintended coupling; the R1LP0108ESF-5SI#S1 datasheet explicitly prohibits connecting this terminal. All functional signals are assigned to pins 2–32.
How does the dual chip select (CS1# and CS2) architecture of the R1LP0108ESF-5SI#S1 simplify memory expansion?
The R1LP0108ESF-5SI#S1 requires both CS1# = L and CS2 = H to enable the device-allowing hierarchical decoding where CS2 selects a memory bank and CS1# selects individual devices within it. This eliminates external AND gates; for example, two R1LP0108ESF-5SI#S1 devices can share CS2 while using separate address-line-derived CS1# signals. The R1LP0108ESF-5SI#S1 thus supports scalable memory maps up to 2+ Mbytes with minimal external logic, reducing layout complexity and improving signal integrity.
R1LP0108ESF-5SI#S1 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:
- 55ns
- Access Time:
- 55 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP I
R1LP0108ESF-5SI#S1 FAQ
1.How can I place an order for R1LP0108ESF-5SI#S1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1LP0108ESF-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 R1LP0108ESF-5SI#S1 reliable?
The price and inventory of R1LP0108ESF-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 R1LP0108ESF-5SI#S1 is usually 5 days.
3.What payment methods are accepted for R1LP0108ESF-5SI#S1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LP0108ESF-5SI#S1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1LP0108ESF-5SI#S1?
R1LP0108ESF-5SI#S1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1LP0108ESF-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 R1LP0108ESF-5SI#S1?
For technical support, including R1LP0108ESF-5SI#S1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LP0108ESF-5SI#S1 requirements.
6.How does Aetrix verify that R1LP0108ESF-5SI#S1 is sourced from the original manufacturer or authorized distributors?
All R1LP0108ESF-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 R1LP0108ESF-5SI#S1 meets industry standards.
7.What is the process for return or replacement of R1LP0108ESF-5SI#S1?
All R1LP0108ESF-5SI#S1 units undergo pre-shipment inspection (PSI). If there is an issue with R1LP0108ESF-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 R1LP0108ESF-5SI#S1 part is unused and in its original packaging.
Return procedure for R1LP0108ESF-5SI#S1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1LP0108ESF-5SI#S1 Tags
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