My Inquiry
My Account
Renesas R1LP0108ESF-5SR#S0
- Part No.:
- R1LP0108ESF-5SR#S0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
R1LP0108ESF-5SR#S0.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32TSOP I
- Quantity:
- Payment:
- Shipping:
Inventory:3,481
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R1LP0108ESF-5SR#S0 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 0.6 µA typical standby current at 5.0 V. It operates across 0 to +70°C and is packaged in a 32-pin TSOP (8 mm × 20 mm, normal-bend type), designed for battery-backed memory systems requiring zero-refresh operation and TTL-compatible interfacing.
For engineers reviewing the R1LP0108ESF-5SR#S0 datasheet, R1LP0108ESF-5SR#S0 pinout, R1LP0108ESF-5SR#S0 application, or R1LP0108ESF-5SR#S0 equivalent, this device serves as a drop-in replacement for legacy 1M×8 SRAMs in embedded controllers, industrial HMIs, and portable instrumentation where data retention at low VCC and minimal power draw are critical selection criteria.
Technical Context
The R1LP0108ESF-5SR#S0 implements a fully static memory array with no internal clocks or refresh circuitry, relying on CMOS latch-based cells fabricated in 0.15 µm technology. Its dual chip select architecture (CS1# active-low, CS2 active-high) enables seamless memory expansion without external decoding logic.
All address (A0–A16), data (DQ0–DQ7), and control inputs (WE#, OE#, CS1#, CS2) are TTL-compatible, supporting direct interfacing with legacy microcontrollers and FPGAs. Standby mode is entered either by asserting CS2 low or by holding CS1# high while CS2 remains high, enabling two independent low-power entry paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 1 Mb (131,072 words × 8 bits) - supports 128 KB of byte-addressable storage without bank switching |
| Access time | 55 ns - guarantees full-speed read/write cycles at up to ~18 MHz system bus rates |
| 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 typical at 5.0 V/25°C - enables multi-year battery backup in always-on memory retention mode |
| Data retention VCC | 2.0 V minimum - retains stored data down to near-dead-battery voltage levels |
| Operating temperature | 0 to +70°C - qualified for commercial-grade industrial control and test equipment environments |
| Input/output compatibility | TTL - eliminates level-shifter requirements when interfacing with 5 V microcontrollers and CPLDs |
Pinout & Package
Package: 32-pin plastic TSOP (8 mm × 20 mm, normal-bend type, package code PTSA0032KA-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address input | 17-bit address bus supporting full 131,072-word addressing; no multiplexing required |
| DQ0–DQ7 | Bi-directional data I/O | Common data bus with three-state outputs; supports OR-tie for shared-bus configurations |
| CS1# | Chip select 1 (active low) | Primary enable; must be low with CS2 high for read/write access; high disables output and reduces current |
| CS2 | Chip select 2 (active high) | Secondary enable; low forces standby regardless of CS1# state; enables dual-standby entry modes |
| WE# | Write enable (active low) | Controls write cycle timing; low during address-valid window initiates data latching into memory cell |
| OE# | Output enable (active low) | Gates output drivers; prevents bus contention when multiple devices share DQ lines |
| Vcc | Power supply | +4.5 to +5.5 V supply; decoupling capacitor required within 1 cm of pin per layout guidelines |
| Vss | Ground | Signal and power ground reference; requires low-impedance connection to PCB ground plane |
| NC | No connection | Pin 1 (NC) is unconnected internally; must remain floating or tied to ground per design rules |
Key Features
| Feature | Design Value |
|---|---|
| No refresh required | Eliminates external refresh controller or timer overhead, reducing firmware complexity and BOM count |
| Dual standby entry | Supports both CS2-low and CS1#-high/CS2-high modes, enabling flexible power management in multi-chip systems |
| OR-tie capable outputs | Allows multiple R1LP0108ESF-5SR#S0 devices to drive same data bus without external wired-OR components |
| Low-voltage data retention | Maintains valid data at VCC ≥ 2.0 V, extending usable battery life in backup applications |
| Easy memory expansion | CS1# and CS2 signals permit straightforward cascading of multiple 1Mb SRAMs into larger contiguous memory maps |
Applications
| Industrial HMI Memory Buffer | Portable Test Equipment Data Log |
|---|---|
Use Scenario: A factory-floor human-machine interface stores real-time sensor history and configuration settings between power cycles. IC Role / Device Role / Timing Role: Non-volatile buffer memory holding 128 KB of operational logs and UI state using battery-backed retention. Use Value: 0.6 µA standby current extends coin-cell life beyond 5 years; 55 ns access ensures responsive screen updates during live data display. |
Use Scenario: Handheld multimeter captures timestamped voltage/current readings during field measurements without host PC connection. IC Role / Device Role / Timing Role: Primary working memory for acquisition firmware, buffering up to 131k samples before USB upload. Use Value: TTL compatibility simplifies interface to 8-bit MCU; no refresh requirement avoids timing-critical interrupt servicing during sampling. |
| Embedded Controller Program Cache | Legacy Industrial PLC Data Table |
Use Scenario: An aging programmable logic controller upgrades its instruction cache to support faster scan cycles without changing CPU. IC Role / Device Role / Timing Role: External instruction cache mapped into microcontroller's external memory space via parallel bus. Use Value: 55 ns tAA meets timing budget for 18 MHz bus clock; common DQ bus reduces trace count versus separate data/address buses. |
Use Scenario: Retrofit of legacy automation hardware replaces obsolete SRAM with pin-compatible modern part to extend service life. IC Role / Device Role / Timing Role: Direct replacement for discontinued 1M×8 SRAM in ladder-logic data table storage. Use Value: Identical 32-pin TSOP footprint and TTL signaling ensure zero PCB modification; -5SR speed grade matches original timing spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power 1M×8 SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61LV10248AL-10TLI | 10 ns access time, 3.3 V supply only, 32-pin TSOP | Requires level translation for 5 V systems; higher speed suits newer controllers but increases power | Select only if migrating to 3.3 V architecture and needing sub-10 ns performance |
| AS6C1008-55PCN | 55 ns access, 4.5–5.5 V supply, 32-pin SOP (not TSOP), 3 mA max ISB | Larger SOP package occupies more board area; standby current 5× higher than R1LP0108ESF-5SR#S0 | Choose when TSOP footprint unavailable and board space permits SOP; verify thermal derating at +70°C |
Compared with IS61LV10248AL-10TLI and AS6C1008-55PCN, the R1LP0108ESF-5SR#S0 uniquely balances 5 V compatibility, ultra-low 0.6 µA standby, and TSOP-32 footprint-making it optimal for battery-constrained, drop-in legacy replacements where power and form factor dominate speed or voltage flexibility.
Availability
R1LP0108ESF-5SR#S0 is available at Aetrix Electronics and suitable for industrial HMIs, portable test equipment, and embedded controller program caches requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for R1LP0108ESF-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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and memory solutions for industrial, automotive, and infrastructure markets.
The R1LP0108E Series was developed to deliver low-power, high-reliability static RAM for battery-backed and space-constrained embedded systems where zero-refresh operation and extended data retention are mandatory.
FAQ
What is the maximum operating frequency supported by the R1LP0108ESF-5SR#S0?
The R1LP0108ESF-5SR#S0 has a 55 ns access time, which supports reliable operation at bus clock frequencies up to approximately 18 MHz under worst-case conditions. The actual maximum frequency depends on system-level timing margins including address setup/hold, OE# assertion delay, and PCB trace propagation. R1LP0108ESF-5SR#S0 does not require clock input-it is fully asynchronous-so timing is governed solely by external control signal edges and specified AC parameters like tRC and tAA.
Does the R1LP0108ESF-5SR#S0 support true data retention at 2.0 V?
Yes, the R1LP0108ESF-5SR#S0 guarantees data retention down to VCC = 2.0 V when placed in standby mode via CS2 ≤ 0.2 V or CS1# ≥ VCC − 0.2 V with CS2 ≥ VCC − 0.2 V. At 25°C and 3.0 V, typical data retention current is 0.6 µA. Retention current rises to 10 µA at +85°C, but data integrity remains assured across the full specified temperature range per the R10DS0151EJ0100 datasheet.
Can the R1LP0108ESF-5SR#S0 be used in place of older 1M×8 SRAMs with different pinouts?
No-the R1LP0108ESF-5SR#S0 uses a standardized 32-pin TSOP pinout defined in the R10DS0151EJ0100 datasheet (page 3), and is not pin-compatible with non-Renesas 1M×8 SRAMs such as the Cypress CY62167EV30 or ISSI IS61LV10248. Direct replacement is only valid for other members of the R1LP0108E family (e.g., R1LP0108ESF-5SI#S0) or explicitly documented cross-references. Always verify pin mapping and timing before substitution.
How does the dual chip select architecture (CS1# and CS2) function in the R1LP0108ESF-5SR#S0?
In the R1LP0108ESF-5SR#S0, CS1# (active low) and CS2 (active high) operate independently: read/write occurs only when CS1# = L and CS2 = H. Standby is entered if CS2 = L (regardless of CS1#), or if CS1# = H while CS2 = H. This dual-path standby enables flexible power sequencing-for example, holding CS2 low during deep sleep while keeping CS1# toggled for wake-up detection-without affecting data retention in the R1LP0108ESF-5SR#S0.
Is the R1LP0108ESF-5SR#S0 compliant with RoHS and lead-free assembly requirements?
Yes, the R1LP0108ESF-5SR#S0 is RoHS-compliant and lead-free, as confirmed in Renesas' official product documentation and packaging markings. It supports standard reflow profiles for lead-free soldering (per J-STD-020), with peak temperatures up to 260°C. The TSOP package uses matte tin terminations, and all materials meet EU Directive 2011/65/EU requirements. R1LP0108ESF-5SR#S0 is rated for "Standard" quality grade per Renesas' classification, suitable for industrial and commercial applications.
R1LP0108ESF-5SR#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:
- 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-TSOP I
R1LP0108ESF-5SR#S0 FAQ
1.How can I place an order for R1LP0108ESF-5SR#S0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1LP0108ESF-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 R1LP0108ESF-5SR#S0 reliable?
The price and inventory of R1LP0108ESF-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 R1LP0108ESF-5SR#S0 is usually 5 days.
3.What payment methods are accepted for R1LP0108ESF-5SR#S0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LP0108ESF-5SR#S0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1LP0108ESF-5SR#S0?
R1LP0108ESF-5SR#S0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1LP0108ESF-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 R1LP0108ESF-5SR#S0?
For technical support, including R1LP0108ESF-5SR#S0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LP0108ESF-5SR#S0 requirements.
6.How does Aetrix verify that R1LP0108ESF-5SR#S0 is sourced from the original manufacturer or authorized distributors?
All R1LP0108ESF-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 R1LP0108ESF-5SR#S0 meets industry standards.
7.What is the process for return or replacement of R1LP0108ESF-5SR#S0?
All R1LP0108ESF-5SR#S0 units undergo pre-shipment inspection (PSI). If there is an issue with R1LP0108ESF-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 R1LP0108ESF-5SR#S0 part is unused and in its original packaging.
Return procedure for R1LP0108ESF-5SR#S0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1LP0108ESF-5SR#S0 Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
