My Inquiry
My Account
Renesas R1LP0108ESN-7SI#S0
- Part No.:
- R1LP0108ESN-7SI#S0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-SOIC (0.450", 11.40mm Width)
- Datasheet:
-
R1LP0108ESN-7SI#S0.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,037
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R1LP0108ESN-7SI#S0 from Renesas Electronics is a 1Mb low-power static RAM (131,072 × 8-bit) in 32-pin SOP packaging, operating from 4.5V to 5.5V with 70 ns access time 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 seamless memory expansion in embedded control and data logging systems.
For engineers reviewing the R1LP0108ESN-7SI#S0 datasheet, R1LP0108ESN-7SI#S0 pinout, R1LP0108ESN-7SI#S0 application, or R1LP0108ESN-7SI#S0 equivalent, key selection criteria include industrial-grade temperature support, sub-1 µA standby current at 25°C, 70 ns read/write timing compliance, and compatibility with legacy 5V microcontroller buses requiring common I/O and OR-tie capability.
Technical Context
The R1LP0108ESN-7SI#S0 implements a fully static CMOS memory array with no internal clocks or refresh circuitry, relying on address latch stability and edge-triggered write enable (WE#) for deterministic access. Its dual chip select architecture (CS1#, CS2) enables hierarchical memory mapping without external decoding logic.
Three-state outputs are controlled independently by OE# and chip select states, supporting bus sharing in multi-peripheral systems. Data retention is maintained down to 2.0V Vcc when either CS2 ≤ 0.2V or CS1# ≥ Vcc–0.2V, enabling battery-backed operation with minimal leakage (0.6 µA typical at 25°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 131,072 words × 8 bits - supports byte-wide data transfers without bit masking or alignment overhead |
| Access Time | 70 ns - ensures compatibility with 14 MHz bus timing in legacy 8/16-bit microcontrollers |
| Supply Voltage | 4.5 V to 5.5 V - matches standard 5V logic rails and tolerates ±10% regulation drift |
| Standby Current | 0.6 µA typical at 25°C - enables multi-year battery backup in power-critical applications |
| Operating Temperature | –40°C to +85°C - certified for industrial environments including factory automation and outdoor telemetry |
| I/O Compatibility | TTL - eliminates level-shifting requirements when interfacing with 74-series logic or older MCU families |
| Data Retention Voltage | 2.0 V minimum - allows operation from depleted batteries or brown-out conditions without data loss |
Pinout & Package
Package: 32-pin plastic SOP (525-mil), JEDEC MS-012AC compliant, body size 19.1 mm × 11.4 mm × 2.4 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address inputs | 17-bit address bus supporting full 128k-word addressing; no multiplexing required |
| DQ0–DQ7 | Bi-directional data I/O | Common data bus with three-state control; enables OR-tie for shared-bus architectures |
| CS1#, CS2 | Chip select inputs | Active-low hierarchical selection: CS1# primary enable, CS2 secondary for bank expansion |
| WE# | Write enable | Low-active signal controlling write cycle initiation; synchronous with address and data setup |
| OE# | Output enable | Independent output gating; prevents bus contention during read cycles in multi-device systems |
| Vcc, Vss | Power supply | Single 5V rail; no separate I/O or core voltage domains - simplifies PCB power design |
| NC | No connection | Pin 1 (NC) is unconnected - must remain floating; not usable as spare I/O or ground |
Key Features
| Feature | Design Value |
|---|---|
| No refresh required | Eliminates timer-driven refresh overhead in firmware and guarantees deterministic latency for real-time interrupt handling |
| 0.6 µA standby current (typ.) | Enables >5-year data retention on a single CR2032 coin cell in always-on monitoring nodes |
| CS1#/CS2 dual-select architecture | Supports up to four R1LP0108E devices on one bus without external address decoders |
| TTL-compatible I/O levels | Direct interface with 8051, Z80, and legacy ARM7-based controllers without level translators |
| OR-tie capable outputs | Allows multiple devices to drive same data bus simultaneously under strict OE# arbitration - reduces board space |
Applications
| Industrial PLC Data Buffer | Medical Device Parameter Storage |
|---|---|
Use Scenario: Storing real-time sensor history and configuration parameters in programmable logic controllers deployed in factory-floor environments. IC Role / Device Role / Timing Role: Non-volatile shadow RAM holding last-known state during power failover; accessed via parallel 8-bit bus at ≤10 MHz. Use Value: 70 ns access time meets scan-cycle timing budgets; –40°C to +85°C rating ensures reliability in unconditioned control cabinets. |
Use Scenario: Retaining calibration coefficients and patient-specific settings in portable diagnostic equipment with battery backup. IC Role / Device Role / Timing Role: Low-leakage SRAM maintaining critical data during AC power loss; enabled by CS2-controlled retention mode. Use Value: 0.6 µA standby current extends coin-cell life beyond 36 months; 2.0 V data retention threshold aligns with Li-MnO₂ battery discharge curve. |
| Automotive Telematics Logger | Legacy Industrial HMI Memory |
Use Scenario: Capturing CAN bus event logs and GPS timestamps in vehicle black-box recorders subject to wide thermal cycling. IC Role / Device Role / Timing Role: High-reliability parallel memory buffer interfaced to microcontroller's external bus interface (EBI) with no wait states. Use Value: Industrial temperature grade satisfies AEC-Q100 Class 2 requirements; no refresh eliminates timing jitter in deterministic logging. |
Use Scenario: Upgrading memory in aging human-machine interface terminals using 5V microcontrollers and discrete address decoding. IC Role / Device Role / Timing Role: Drop-in replacement for obsolete 128k×8 SRAMs; pin-compatible with industry-standard 32-pin SOP footprint. Use Value: TTL I/O and identical pinout allow direct substitution without PCB rework or firmware changes. |
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 | 32-pin TSOP, 70 ns access, 3.3V only (2.7–3.6V); 1 µA standby (typ.) | Requires level translation for 5V systems; unsuitable for direct 5V bus integration | Select only if migrating to 3.3V system architecture and redesigning power delivery |
| CY62128ELL-70ZSXIT | 32-pin SOIC, 70 ns, 5V supply; 2 µA standby (typ.); no data retention below 4.5V | Lacks low-Vcc retention mode - cannot sustain data during brown-out or battery depletion | Prefer for cost-sensitive 5V applications where battery backup is not required |
Compared with R1LP0108ESN-7SI#S0, the IS61LV10248AL-70TQLI demands voltage translation and forfeits industrial temperature margin, while the CY62128ELL-70ZSXIT omits critical low-voltage data retention - making R1LP0108ESN-7SI#S0 uniquely suited for battery-backed, wide-temperature, 5V legacy designs.
Availability
R1LP0108ESN-7SI#S0 is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, automotive telematics, and legacy HMI systems requiring stable component supply across extended product lifecycles.
Supply support for R1LP0108ESN-7SI#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 specifically for low-power, battery-backed memory applications in industrial and embedded systems where reliability, simplicity, and long-term supply stability are critical.
FAQ
What is the maximum operating frequency supported by R1LP0108ESN-7SI#S0?
R1LP0108ESN-7SI#S0 does not operate on a clock signal - it is a static RAM with asynchronous access. Its 70 ns access time corresponds to a maximum effective bus frequency of approximately 14 MHz for consecutive read/write cycles. Timing is governed by tRC (read cycle time) and tWC (write cycle time), both specified at 70 ns, with no internal clock or synchronization circuitry required.
Does R1LP0108ESN-7SI#S0 support true data retention during power loss?
Yes, R1LP0108ESN-7SI#S0 supports guaranteed data retention down to 2.0 V Vcc when placed in retention mode via CS2 ≤ 0.2V or CS1# ≥ Vcc–0.2V. At 25°C, retention current is 0.6 µA typical, enabling multi-year storage on small backup batteries. Retention is validated across the full –40°C to +85°C range, with current rising to 10 µA at +85°C.
Is R1LP0108ESN-7SI#S0 pin-compatible with other 32-pin SOP SRAMs like the AS6C1008 or HM628128?
R1LP0108ESN-7SI#S0 shares the industry-standard 32-pin SOP pinout for 128k×8 SRAMs (JEDEC MS-012AC), including identical A0–A16, DQ0–DQ7, CS1#, CS2, WE#, OE#, Vcc, and Vss placements. However, NC pin position and internal logic for CS2 functionality differ - verify OE#/WE# timing and CS2 behavior before drop-in replacement in existing designs.
Can R1LP0108ESN-7SI#S0 be used in a 3.3V system?
No - R1LP0108ESN-7SI#S0 requires a 4.5V to 5.5V supply and is not rated for 3.3V operation. Its input thresholds (VIH = 2.2V min, VIL = 0.8V max) and output drive strength (VOH = 2.4V @ –1mA) are optimized for 5V TTL compatibility. Using it at 3.3V risks setup/hold violations, reduced noise margin, and potential data corruption.
What is the significance of the "SI" suffix in R1LP0108ESN-7SI#S0?
The "SI" suffix in R1LP0108ESN-7SI#S0 denotes Industrial temperature grade (–40°C to +85°C) and tape-and-reel packaging (S). The "SN" indicates 32-pin SOP package, "7" specifies 70 ns access time, and "#S0" is Renesas's internal revision and marking code. This distinguishes it from commercial-grade "SR" variants (0°C to +70°C) and sTSOP/TSOP package versions.
R1LP0108ESN-7SI#S0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-SOIC (0.450", 11.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-SOP
R1LP0108ESN-7SI#S0 FAQ
1.How can I place an order for R1LP0108ESN-7SI#S0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1LP0108ESN-7SI#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 R1LP0108ESN-7SI#S0 reliable?
The price and inventory of R1LP0108ESN-7SI#S0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1LP0108ESN-7SI#S0 is usually 5 days.
3.What payment methods are accepted for R1LP0108ESN-7SI#S0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1LP0108ESN-7SI#S0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1LP0108ESN-7SI#S0?
R1LP0108ESN-7SI#S0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1LP0108ESN-7SI#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 R1LP0108ESN-7SI#S0?
For technical support, including R1LP0108ESN-7SI#S0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1LP0108ESN-7SI#S0 requirements.
6.How does Aetrix verify that R1LP0108ESN-7SI#S0 is sourced from the original manufacturer or authorized distributors?
All R1LP0108ESN-7SI#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 R1LP0108ESN-7SI#S0 meets industry standards.
7.What is the process for return or replacement of R1LP0108ESN-7SI#S0?
All R1LP0108ESN-7SI#S0 units undergo pre-shipment inspection (PSI). If there is an issue with R1LP0108ESN-7SI#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 R1LP0108ESN-7SI#S0 part is unused and in its original packaging.
Return procedure for R1LP0108ESN-7SI#S0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1LP0108ESN-7SI#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…
