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Renesas 6116SA25SOG8
- Part No.:
- 6116SA25SOG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
6116SA25SOG8.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,748
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Product details
Overview
The 6116SA25SOG8 from Renesas Electronics is a 16K-bit (2K × 8) high-speed CMOS static RAM with 25ns maximum access time, TTL-compatible I/O, and industrial temperature support (–40°C to +85°C). It operates at 5.0V ±10%, consumes ≤40mA active current and ≤2mA standby current (TTL-level CS), and is packaged in a 24-pin SOIC for compact board integration in embedded control systems.
For engineers reviewing the 6116SA25SOG8 datasheet, 6116SA25SOG8 pinout, 6116SA25SOG8 application, or 6116SA25SOG8 equivalent, this device serves as a drop-in replacement for legacy 2K×8 SRAMs requiring low-power standby, no refresh, and robust data retention - especially in programmable logic controllers, instrumentation front-ends, and real-time data buffers where deterministic timing and reliability are critical.
Technical Context
This static RAM uses fully asynchronous CMOS architecture with no clocks or refresh cycles required. Its dual-control write interface supports both WE-controlled and CS-controlled write timing modes, enabling flexible bus interfacing in microcontroller and FPGA-based systems.
The device implements a 128×128 memory array with address decoding, I/O control, and input data circuitry. Standby power mode activates automatically when CS is HIGH, reducing ICC to ≤2mA (TTL level) or ≤0.1mA (CMOS level), while maintaining full data retention across its rated temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2K × 8-bit (16,384 bits), byte-wide parallel interface |
| Access Time (tAA) | 25ns max - guarantees deterministic read latency for 40MHz bus operation |
| Supply Voltage | 5.0V ±10% - compatible with standard TTL/CMOS logic rails without regulation |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation |
| Standby Current (ISB) | ≤2mA (TTL-level CS) - enables significant system-level power savings during idle periods |
| I/O Compatibility | TTL-compatible inputs and outputs - direct interfacing with 74LS, 74HC, and microcontroller GPIOs |
| Package | 24-pin SOIC (PSG24, gull-wing) - surface-mount footprint supporting high-density PCB layouts |
Pinout & Package
6116SA25SOG8 is housed in a 24-pin SOIC (PSG24) package with 0.300-inch body width and gull-wing leads. Pin pitch is 1.27mm, and the package meets JEDEC MS-012 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A10 | Address Inputs | 11-bit address bus for selecting one of 2048 memory locations |
| I/O0–I/O7 | Bi-directional Data Bus | 8-bit parallel data path for read/write operations; high-impedance when disabled |
| CS | Chip Select | Active-low enable; forces standby mode when HIGH, isolating device from bus |
| WE | Write Enable | Active-low control for write cycles; used with CS to define write overlap window |
| OE | Output Enable | Active-low control for output drivers; allows read data to appear on I/O pins |
| VCC | Power Supply | +5V supply pin; decoupling capacitor required near pin for noise immunity |
| GND | Ground Reference | Signal and power ground return; must be low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| Static Operation | No clocks or refresh required - eliminates timing-critical external control logic |
| Low-Power Standby | ISB ≤2mA (TTL) / ≤0.1mA (CMOS) - extends battery life in backup applications |
| TTL-Compatible I/O | VIL ≤0.8V, VOH ≥2.4V at IOL=8mA - ensures interoperability with legacy logic families |
| Industrial Temp Range | –40°C to +85°C operation - validated for use in uncontrolled ambient environments |
| High Reliability CMOS | Alpha-particle soft-error immunity - suitable for mission-critical embedded systems |
Applications
| Programmable Logic Controller (PLC) Data Buffer | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Storing real-time analog-to-digital conversion results before batch transmission to a host controller. IC Role / Device Role / Timing Role: Byte-accessible, non-refreshing SRAM providing deterministic 25ns read/write access for time-critical sensor sampling. Use Value: Eliminates DRAM refresh overhead and ensures zero-latency access during interrupt-driven acquisition windows. | Use Scenario: Holding calibration coefficients and transient measurement data in a multi-channel temperature monitoring module. IC Role / Device Role / Timing Role: Low-power static RAM retaining valid data during processor sleep cycles while operating across –40°C to +85°C. Use Value: Enables energy-efficient operation with <0.1mA CMOS standby current and guaranteed data integrity without battery backup. |
| Legacy Microcontroller System Memory Expansion | Real-Time Embedded Instrumentation Front-End |
Use Scenario: Adding external RAM to an 8-bit MCU (e.g., 8051 or Z80 derivative) with limited on-chip memory. IC Role / Device Role / Timing Role: Parallel memory mapped into the MCU's external address space using A0–A10, CS, OE, and WE signals. Use Value: Direct TTL-compatible interface avoids level-shifting components and simplifies PCB routing. | Use Scenario: Capturing oscilloscope-style waveform snapshots in portable test equipment with burst-triggered acquisition. IC Role / Device Role / Timing Role: High-speed 25ns-access buffer storing successive ADC samples until post-processing begins. Use Value: Sustains continuous 40MHz-equivalent throughput without wait states, preserving signal fidelity during transient capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AS6C1008-25ZIN | 25ns access, 5V, 2K×8, SOIC-24, but rated only for commercial temp (0°C to +70°C) | Lacks industrial temperature qualification - unsuitable for factory-floor deployments | Select only for cost-sensitive commercial-grade designs with controlled ambient conditions. |
| IS61LV256AL-25MLI | 25ns access, 3.3V supply, 32K×8 organization, SOIC-28 - not pin-compatible | Requires voltage translation and PCB redesign due to different voltage and pin count | Consider only when upgrading capacity and migrating to 3.3V systems; not a drop-in substitute. |
Compared with AS6C1008-25ZIN and IS61LV256AL-25MLI, the 6116SA25SOG8 uniquely delivers industrial temperature support, 5V TTL compatibility, and true pin-for-pin fit in 24-pin SOIC - making it the sole option for retrofitting legacy 5V industrial controllers without layout changes.
Availability
6116SA25SOG8 is available at Aetrix Electronics and suitable for programmable logic controllers, industrial sensor interfaces, and legacy microcontroller memory expansion requiring stable component supply and long-term industrial-grade availability.
Supply support for 6116SA25SOG8 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT applications.
The 6116SA/LA family was designed specifically for industrial and military applications demanding high reliability, wide temperature operation, and zero-refresh static memory - targeting control systems, instrumentation, and avionics where data integrity and timing predictability are non-negotiable.
FAQ
What is the maximum operating frequency supported by the 6116SA25SOG8?
The 6116SA25SOG8 has a 25ns maximum access time (tAA), enabling reliable operation up to 40MHz in read cycles when interfaced with appropriate setup/hold timing. Its asynchronous design means no internal clock governs speed - actual system frequency depends on external bus controller timing margins, particularly tRC (read cycle time) of 25ns and tACS (address-to-CS setup) of 20ns.
Does the 6116SA25SOG8 require a refresh circuit?
No, the 6116SA25SOG8 is a fully static RAM and requires no refresh circuitry. Its CMOS latch-based memory cells retain data indefinitely as long as power is applied and CS remains LOW during active use. This eliminates refresh-related timing constraints and simplifies system design versus DRAM solutions.
Can the 6116SA25SOG8 operate with a 3.3V supply?
No, the 6116SA25SOG8 is specified only for 5.0V ±10% operation (4.5V to 5.5V). Applying 3.3V will result in undefined behavior, failed reads/writes, and potential data corruption. For 3.3V systems, consider functionally similar but voltage-specific alternatives like the IS61LV256AL-25MLI - though it is not pin-compatible.
What is the data retention capability of the 6116SA25SOG8 during power loss?
The 6116SA25SOG8 does not support battery-backed data retention - that feature is exclusive to the LA variant (e.g., 6116LA25SOG8). As an SA-series part, it retains data only while VCC remains within specification (≥4.5V); below ~2.0V, data is not guaranteed. For retention during brownout, pair with an external supervisor IC and backup source.
Is the 6116SA25SOG8 RoHS compliant and lead-free?
Yes, the 6116SA25SOG8 is a Green-part per Renesas' ordering information and complies with RoHS Directive 2011/65/EU. It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits, and is suitable for lead-free reflow soldering processes with peak temperatures up to 260°C.
6116SA25SOG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 16Kbit
- Memory Organization:
- 2K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 25ns
- Access Time:
- 25 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SOIC
6116SA25SOG8 FAQ
1.How can I place an order for 6116SA25SOG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 6116SA25SOG8 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 6116SA25SOG8 reliable?
The price and inventory of 6116SA25SOG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 6116SA25SOG8 is usually 5 days.
3.What payment methods are accepted for 6116SA25SOG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6116SA25SOG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6116SA25SOG8?
6116SA25SOG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6116SA25SOG8 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 6116SA25SOG8?
For technical support, including 6116SA25SOG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6116SA25SOG8 requirements.
6.How does Aetrix verify that 6116SA25SOG8 is sourced from the original manufacturer or authorized distributors?
All 6116SA25SOG8 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 6116SA25SOG8 meets industry standards.
7.What is the process for return or replacement of 6116SA25SOG8?
All 6116SA25SOG8 units undergo pre-shipment inspection (PSI). If there is an issue with 6116SA25SOG8, 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 6116SA25SOG8 part is unused and in its original packaging.
Return procedure for 6116SA25SOG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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