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Renesas R1LP0108ESA-5SI#B0
- Part No.:
- R1LP0108ESA-5SI#B0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-TFSOP (0.465", 11.80mm Width)
- Datasheet:
-
R1LP0108ESA-5SI#B0.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32STSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,701
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Product details
Overview
R1LP0108ESA-5SI#B0 from Renesas Electronics is a 1Mb (131,072 × 8-bit) low-power static RAM with 55 ns access time, -40°C to +85°C industrial temperature range, and 4.5–5.5 V single-supply operation. It features TTL-compatible I/O, no refresh requirement, and dual chip select (CS1#, CS2) for seamless memory expansion in embedded control and battery-backed systems.
For engineers reviewing the R1LP0108ESA-5SI#B0 datasheet, R1LP0108ESA-5SI#B0 pinout, R1LP0108ESA-5SI#B0 application, or R1LP0108ESA-5SI#B0 equivalent, key selection criteria include standby current (0.6 µA typical at 5.0 V), data retention down to 2.0 V, sTSOP-32 package compatibility, and support for OR-tie bus configurations via three-state outputs.
Technical Context
The R1LP0108ESA-5SI#B0 implements a fully static 128k-word × 8-bit memory array using Renesas's 0.15 µm CMOS process, eliminating clock and refresh circuitry. Its dual chip select architecture (CS1# active-low, CS2 active-high) enables hierarchical memory mapping without external logic.
Address decoding covers A0–A16 (17 address lines), supporting full 1Mb addressing. Data I/O uses common bidirectional DQ0–DQ7 pins with OE#-controlled output enable and WE#-controlled write strobe, ensuring deterministic timing under TTL-level drive conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mb (131,072 words × 8 bits) - supports byte-wide data paths without external multiplexing |
| Access Time | 55 ns - guarantees read data valid within 55 ns of address/CS1#/OE# setup, enabling 18.2 MHz burst operation |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V logic rails and tolerant of ±10% regulation variation |
| Standby Current | 0.6 µA typical at 5.0 V and 25°C - enables multi-year battery backup in non-volatile SRAM applications |
| Data Retention Voltage | 2.0 V minimum - retains stored data during brown-out or backup power transitions without external supervision |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade deployment in automotive body control, PLCs, and metering equipment |
| Input/Output Compatibility | TTL - interfaces directly with legacy microcontrollers, FPGAs, and ASICs without level-shifting circuitry |
Pinout & Package
Package: 32-pin sTSOP (8 mm × 13.4 mm, normal-bend type, PTSA0032KB-A), surface-mount, lead-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Input | 17-bit address bus accepting full 1Mb linear addressing; no internal latching required |
| DQ0–DQ7 | Data Input/Output | Bidirectional 8-bit data bus with three-state control; supports OR-tie bus sharing across multiple devices |
| CS1# | Chip Select 1 | Active-low primary enable; must be low with CS2 high for read/write access |
| CS2 | Chip Select 2 | Active-high secondary enable; used with CS1# for hierarchical decode or data retention mode entry |
| WE# | Write Enable | Active-low write strobe; initiates write cycle when CS1# = L, CS2 = H, WE# = L |
| OE# | Output Enable | Active-low output gate; prevents bus contention during shared-memory transfers |
| Vcc | Power Supply | +4.5 V to +5.5 V supply rail; decoupling required per JEDEC guidelines for noise immunity |
| Vss | Ground | Reference return path for all signals and power; requires low-impedance PCB plane connection |
| NC | No Connect | Pin 1 (sTSOP top-left corner) is unconnected; must remain floating or grounded per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| No refresh required | Eliminates external refresh controller or timer overhead, reducing BOM count and firmware complexity in microcontroller-based systems |
| 0.6 µA standby current | Enables >10-year data retention on coin-cell batteries (e.g., CR2032) in tamper-proof logging or configuration storage |
| Dual chip select (CS1#, CS2) | Supports up to four R1LP0108ESA-5SI#B0 devices on one bus without address decoder ICs via simple AND/NAND logic |
| Common DQ I/O with three-state control | Reduces PCB trace count and simplifies routing in space-constrained industrial modules and portable instrumentation |
| 2.0 V data retention threshold | Permits graceful degradation during power loss-retains memory contents even as main supply drops below 3.0 V |
Applications
| Industrial PLC Data Buffer | Automotive Body Control Module |
|---|---|
Use Scenario: Storing real-time sensor logs and fault codes in programmable logic controllers operating in factory environments with voltage fluctuations. IC Role / Device Role / Timing Role: Non-refreshing, byte-accessible SRAM acting as volatile working memory and last-known-state backup during AC mains interruption. Use Value: 0.6 µA standby current and 2.0 V data retention ensure 72+ hours of code/data preservation on supercapacitor backup without recharge circuitry. |
Use Scenario: Holding door lock status, window position, and mirror calibration data in automotive body control units exposed to -40°C cold cranking and 85°C under-hood heat. IC Role / Device Role / Timing Role: Industrial-temperature SRAM providing deterministic 55 ns read/write timing for CAN-linked microcontrollers with no timing margin risk. Use Value: TTL compatibility and -40°C to +85°C qualification eliminate level shifters and thermal derating calculations in ECU designs. |
| Smart Electricity Meter RAM | Medical Infusion Pump Configuration Store |
Use Scenario: Capturing energy consumption snapshots every 15 minutes in Class 0.5 smart meters requiring tamper-resistant, long-life memory. IC Role / Device Role / Timing Role: Battery-backed SRAM serving as secure, fast-access scratchpad for time-stamped kWh registers and tariff tables. Use Value: Dual CS control allows independent retention mode activation (via CS2 low) while main MCU sleeps, cutting system power by >99% during idle intervals. |
Use Scenario: Storing calibrated flow rates, drug library parameters, and user presets in FDA-cleared infusion pumps where data integrity is safety-critical. IC Role / Device Role / Timing Role: Fail-safe SRAM retaining therapy settings across power cycles and battery swaps without EEPROM wear-out concerns. Use Value: No refresh and zero write-cycle latency prevent data corruption during sudden power loss-critical for dose accuracy compliance. |
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 | 2Mb (128k × 16), 10 ns access, 3.3 V only, SOJ-44 package | Higher density and speed but incompatible voltage and footprint; requires PCB redesign and level translation | Select only if migrating to 3.3 V systems and needing wider bus or faster timing-R1LP0108ESA-5SI#B0 remains optimal for 5 V industrial retrofits. |
| AS6C1008-55PCN | 1Mb (128k × 8), 55 ns, 4.5–5.5 V, SOP-32 package, 1 µA standby (typ) | Near-identical electrical specs but larger SOP-32 footprint (vs. sTSOP); lacks CS2-controlled retention mode | Use when board space permits SOP and CS2 functionality is unnecessary; R1LP0108ESA-5SI#B0 offers superior packaging density and advanced retention control. |
Compared with IS61LV102416L-10TLI and AS6C1008-55PCN, the R1LP0108ESA-5SI#B0 uniquely combines industrial temperature rating, sTSOP-32 miniaturization, sub-µA standby, and dual-CS retention-making it the only drop-in solution for space- and power-constrained 5 V legacy upgrades.
Availability
R1LP0108ESA-5SI#B0 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and smart utility metering requiring stable component supply across extended product lifecycles.
Supply support for R1LP0108ESA-5SI#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 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-power, battery-backed memory applications demanding zero-refresh operation, wide temperature resilience, and direct TTL interfacing in cost-sensitive embedded systems.
FAQ
What is the maximum operating frequency supported by the R1LP0108ESA-5SI#B0?
The R1LP0108ESA-5SI#B0 does not operate on a clock signal-it is a static RAM with asynchronous timing. Its 55 ns access time supports effective bus frequencies up to 18.2 MHz in burst-read configurations. System timing depends on external controller setup/hold margins, not an internal oscillator. The R1LP0108ESA-5SI#B0 delivers deterministic read/write latency without clock tree design constraints.
Does the R1LP0108ESA-5SI#B0 require external refresh circuitry?
No, the R1LP0108ESA-5SI#B0 is a true static RAM and requires no refresh cycles. Its CMOS latch-based memory cells retain data indefinitely as long as power is applied above VDR (2.0 V). This eliminates refresh overhead in microcontroller firmware and removes associated timing jitter-critical for real-time deterministic systems using the R1LP0108ESA-5SI#B0.
Can the R1LP0108ESA-5SI#B0 retain data during main power failure?
Yes, the R1LP0108ESA-5SI#B0 supports data retention down to 2.0 V supply voltage. When configured in retention mode (CS2 ≤ 0.2 V or CS1# ≥ Vcc−0.2 V with CS2 ≥ Vcc−0.2 V), it draws only 0.6 µA typical at 25°C-enabling multi-day retention on small backup capacitors or coin cells. This behavior is fully specified and tested for the R1LP0108ESA-5SI#B0 across its full industrial temperature range.
Is the R1LP0108ESA-5SI#B0 pin-compatible with other devices in the R1LP0108E family?
Yes, all R1LP0108E-series variants-including R1LP0108ESA-5SI#B0, R1LP0108ESA-5SR#B0, and R1LP0108ESF-5SI#B0-share identical 32-pin sTSOP/TSOP/SOP pinouts and signal assignments. Only access time (55 ns vs. 70 ns) and temperature grade (I- vs. R-version) differ. The R1LP0108ESA-5SI#B0 may be substituted for same-package variants without layout changes.
What is the purpose of the NC pin on the R1LP0108ESA-5SI#B0 sTSOP package?
Pin 1 of the R1LP0108ESA-5SI#B0 sTSOP package is designated NC (No Connect) and must remain unconnected-neither tied to Vcc nor Vss. It is electrically isolated within the die and serves only as a mechanical alignment marker. Connecting the NC pin risks internal leakage or undefined behavior; Renesas explicitly prohibits termination of this pin in the R1LP0108ESA-5SI#B0 datasheet.
R1LP0108ESA-5SI#B0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-TFSOP (0.465", 11.80mm Width)
- Packaging:
- Bulk
- 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-sTSOP
R1LP0108ESA-5SI#B0 FAQ
1.How can I place an order for R1LP0108ESA-5SI#B0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1LP0108ESA-5SI#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 R1LP0108ESA-5SI#B0 reliable?
The price and inventory of R1LP0108ESA-5SI#B0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1LP0108ESA-5SI#B0 is usually 5 days.
3.What payment methods are accepted for R1LP0108ESA-5SI#B0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LP0108ESA-5SI#B0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1LP0108ESA-5SI#B0?
R1LP0108ESA-5SI#B0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1LP0108ESA-5SI#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 R1LP0108ESA-5SI#B0?
For technical support, including R1LP0108ESA-5SI#B0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LP0108ESA-5SI#B0 requirements.
6.How does Aetrix verify that R1LP0108ESA-5SI#B0 is sourced from the original manufacturer or authorized distributors?
All R1LP0108ESA-5SI#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 R1LP0108ESA-5SI#B0 meets industry standards.
7.What is the process for return or replacement of R1LP0108ESA-5SI#B0?
All R1LP0108ESA-5SI#B0 units undergo pre-shipment inspection (PSI). If there is an issue with R1LP0108ESA-5SI#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 R1LP0108ESA-5SI#B0 part is unused and in its original packaging.
Return procedure for R1LP0108ESA-5SI#B0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1LP0108ESA-5SI#B0 Tags
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