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Renesas R1LP0408DSP-5SR#S0
- Part No.:
- R1LP0408DSP-5SR#S0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-SOIC (0.450", 11.40mm Width)
- Datasheet:
-
R1LP0408DSP-5SR#S0.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 32SOP
- Quantity:
- Payment:
- Shipping:
Inventory:670
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Product details
Overview
R1LP0408DSP-5SR#S0 from Renesas Electronics is a 4Mb advanced low-power static RAM organized as 512-kword × 8-bit, operating from a single 5V supply (4.5–5.5V), with 55ns max access time, 4µW typical standby power dissipation, and TTL-compatible I/O - designed for battery-backed memory applications in industrial control and portable instrumentation.
For engineers reviewing the R1LP0408DSP-5SR#S0 datasheet, R1LP0408DSP-5SR#S0 pinout, R1LP0408DSP-5SR#S0 application, or R1LP0408DSP-5SR#S0 equivalent, this page delivers verified electrical specs, SOP-32 pin mapping, low-power retention behavior, timing-critical AC parameters, and real-world use context for embedded system memory selection.
Technical Context
The R1LP0408DSP-5SR#S0 implements a fully static CMOS memory architecture with common I/O bus, three-state outputs, and independent chip select (CS#), write enable (WE#), and output enable (OE#) controls. Its 2,048 × 2,048 memory matrix supports equal read/write cycle times and eliminates refresh circuitry.
It features dual-mode operation: active mode with 5–10mA typical ICC and standby mode with ≤0.5mA ISB (≤2.5µA at +25°C), enabling reliable data retention down to 2.0V VCC while maintaining high-Z I/O during CS#-high states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 4Mb (512-kword × 8-bit): provides 64KB of byte-addressable, non-refreshing RAM for firmware buffers or real-time data logging. |
| Access time | 55ns (max): enables direct interface with legacy 8-bit microcontrollers (e.g., 8051, Z80) without wait states at 12–18MHz bus clocks. |
| Supply voltage | 4.5V to 5.5V: ensures compatibility with standard 5V logic rails and tolerates ±5% regulation drift in industrial power supplies. |
| Standby current | 0.1µA (typ) at +25°C: allows multi-year battery backup in SRAM-based NV memory modules without capacitor recharge cycles. |
| Data retention VCC | 2.0V min: guarantees data integrity during brown-out conditions or controlled power-down sequences in safety-critical systems. |
| I/O interface | TTL-compatible inputs/outputs: eliminates level-shifting requirements when interfacing with 5V FPGA I/O banks or MCU GPIOs. |
| Package | 32-pin SOP (525-mil): supports through-hole prototyping and reflow-soldered PCB assembly with industry-standard footprint PRSP0032DF-A. |
Pinout & Package
Package: 32-pin plastic SOP (525-mil), JEDEC MS-012AC variant (PRSP0032DF-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Vcc | Power supply | Primary 5V rail input; decoupling capacitor required within 10mm for stable 55ns timing. |
| Vss | Ground | Digital ground reference; must be connected to low-impedance plane to minimize noise on I/O lines. |
| A0–A18 | Address inputs | 19-bit address bus supporting full 512k-word decoding; A18 is MSB for 4Mb addressing. |
| I/O0–I/O7 | Bi-directional data bus | Common 8-bit data path with three-state control; driven only when CS# and OE# are low. |
| CS# | Chip select | Active-low enable; places device in standby (high-Z I/O) when high, critical for bus arbitration. |
| WE# | Write enable | Active-low write strobe; initiates write cycle only when CS# is also low; defines tWP timing window. |
| OE# | Output enable | Active-low output control; enables read data drive without affecting write operations. |
Key Features
| Feature | Design Value |
|---|---|
| Single 5V supply operation | Eliminates dual-rail power design complexity and reduces BOM count in cost-sensitive industrial controllers. |
| 55ns access with equal cycle time | Enables deterministic timing in hard real-time systems where read/write latency must be identical and bounded. |
| 4µW typical standby power | Supports >10-year coin-cell battery life in always-on memory retention applications like metering calibration storage. |
| Battery backup capability | Guarantees data retention at VCC ≥2.0V and ambient up to +70°C, meeting IEC 62368-1 backup power requirements. |
| TTL-compatible I/O | Direct connection to legacy 5V microcontrollers and FPGAs without external translators, reducing signal integrity risk. |
Applications
| Industrial Data Logger | Medical Device Memory Buffer |
|---|---|
Use Scenario: Continuous acquisition of sensor readings (temperature, pressure) in standalone field loggers powered by lithium primary cells. IC Role / Device Role / Timing Role: Non-volatile buffer storing 64KB of timestamped samples before periodic upload; operates in low-power standby between reads. Use Value: 0.1µA standby current extends battery life beyond 5 years; 55ns access enables burst capture at 10kHz without CPU intervention. |
Use Scenario: Temporary storage of ECG waveform segments in portable diagnostic equipment requiring FDA-compliant data persistence. IC Role / Device Role / Timing Role: High-reliability SRAM holding raw analog-to-digital conversion results prior to encryption and transmission. Use Value: Data retention down to 2.0V VCC ensures integrity during brief power interruptions; TTL compatibility simplifies interface to ARM Cortex-M3 host. |
| Programmable Logic Controller (PLC) | Point-of-Sale Terminal |
Use Scenario: Storing ladder logic state variables and I/O image tables in DIN-rail mounted PLCs with wide ambient temperature range. IC Role / Device Role / Timing Role: Fast-access working memory mapped directly to controller's address space; supports deterministic scan-cycle execution. Use Value: 55ns access time eliminates wait states for 16MHz Z80 or 80C188EX CPUs; -40°C to +85°C rating matches industrial enclosure specs. |
Use Scenario: Caching transaction records and receipt templates in thermal receipt printers with intermittent USB host connectivity. IC Role / Device Role / Timing Role: Local scratchpad memory buffering print jobs during host communication gaps or power-save modes. Use Value: Three-state I/O prevents bus contention during USB suspend; 32-pin SOP footprint fits compact 2-layer PCB layouts. |
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 |
|---|---|---|---|
| IS61LV25616AL-10TLI | 256K × 16-bit (512KB), 10ns access, 3.3V supply only | Higher density but incompatible voltage domain; requires level shifters for 5V systems | Select only if migrating to 3.3V architecture and needing wider data bus. |
| CY62128EV30LL-55ZSXIT | 128K × 8-bit (128KB), 55ns access, 3.0–3.6V supply, TSOP-32 | Lower capacity, different voltage range, same package footprint but not pin-compatible | Use when board redesign allows 3.3V adoption and memory size reduction is acceptable. |
Compared with IS61LV25616AL-10TLI and CY62128EV30LL-55ZSXIT, the R1LP0408DSP-5SR#S0 uniquely delivers 4Mb density at 5V with sub-microwatt standby - making it irreplaceable in legacy 5V battery-backed systems where voltage translation or layout changes are prohibited.
Availability
R1LP0408DSP-5SR#S0 is available at Aetrix Electronics and suitable for industrial data loggers, medical diagnostic buffers, programmable logic controllers, point-of-sale terminals, and battery-powered instrumentation requiring stable component supply across extended product lifecycles.
Supply support for R1LP0408DSP-5SR#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 Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and memory solutions for industrial, automotive, and infrastructure markets.
The R1LP0408D Series was developed specifically for low-power, battery-backed SRAM applications in industrial control and portable instrumentation - emphasizing ultra-low standby current and robust 5V TTL interoperability.
FAQ
What is the maximum operating temperature range for R1LP0408DSP-5SR#S0?
The R1LP0408DSP-5SR#S0 is rated for 0°C to +70°C ambient operation (R-version). Its datasheet specifies ISB standby current up to 8µA at +70°C and confirms functionality across this full commercial temperature range without derating. This makes R1LP0408DSP-5SR#S0 suitable for enclosed industrial enclosures without forced cooling.
Does R1LP0408DSP-5SR#S0 support true static operation without refresh cycles?
Yes, R1LP0408DSP-5SR#S0 is a fully static RAM - it requires no external refresh circuitry or clock signal. Data remains valid indefinitely as long as Vcc and CS# are maintained within specification, even with zero bus activity. This distinguishes it from DRAM and pseudo-SRAM devices that mandate periodic refresh.
Can R1LP0408DSP-5SR#S0 retain data during main power loss?
Yes, R1LP0408DSP-5SR#S0 supports low-Vcc data retention down to 2.0V. When main Vcc drops and a backup battery or capacitor maintains ≥2.0V at Vcc with CS# held high, the device enters data retention mode drawing ≤10µA - preserving contents for years under proper bias conditions.
Is R1LP0408DSP-5SR#S0 pin-compatible with other 32-pin SOP SRAMs?
No, R1LP0408DSP-5SR#S0 uses a proprietary pinout optimized for Renesas' 19-bit address bus (A0–A18) and shared I/O structure. It is not pin-compatible with industry-standard 28-pin or 32-pin SRAMs like the AS6C4008 or CY62167 - PCB layout must follow the PRSP0032DF-A footprint and signal mapping shown in the datasheet.
What is the minimum Vcc required for active read/write operation of R1LP0408DSP-5SR#S0?
R1LP0408DSP-5SR#S0 requires a minimum Vcc of 4.5V for guaranteed active-mode operation (read/write), per its DC Operating Conditions table. Below 4.5V, timing parameters such as tAA and tWC may exceed specification limits, and output drive strength (VOH/VOL) is not assured - thus 4.5V is the functional lower bound for reliable data transactions.
R1LP0408DSP-5SR#S0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-SOIC (0.450", 11.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-SOP
R1LP0408DSP-5SR#S0 FAQ
1.How can I place an order for R1LP0408DSP-5SR#S0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1LP0408DSP-5SR#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 R1LP0408DSP-5SR#S0 reliable?
The price and inventory of R1LP0408DSP-5SR#S0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1LP0408DSP-5SR#S0 is usually 5 days.
3.What payment methods are accepted for R1LP0408DSP-5SR#S0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LP0408DSP-5SR#S0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1LP0408DSP-5SR#S0?
R1LP0408DSP-5SR#S0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1LP0408DSP-5SR#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 R1LP0408DSP-5SR#S0?
For technical support, including R1LP0408DSP-5SR#S0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LP0408DSP-5SR#S0 requirements.
6.How does Aetrix verify that R1LP0408DSP-5SR#S0 is sourced from the original manufacturer or authorized distributors?
All R1LP0408DSP-5SR#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 R1LP0408DSP-5SR#S0 meets industry standards.
7.What is the process for return or replacement of R1LP0408DSP-5SR#S0?
All R1LP0408DSP-5SR#S0 units undergo pre-shipment inspection (PSI). If there is an issue with R1LP0408DSP-5SR#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 R1LP0408DSP-5SR#S0 part is unused and in its original packaging.
Return procedure for R1LP0408DSP-5SR#S0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1LP0408DSP-5SR#S0 Tags
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