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Renesas 6116SA35SOG8
- Part No.:
- 6116SA35SOG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
6116SA35SOG8.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,132
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Product details
Overview
6116SA35SOG8 from Renesas Electronics is a 16K-bit (2K × 8) high-speed CMOS static RAM with 35ns maximum access time, TTL-compatible I/O, and industrial temperature range (–40°C to +85°C). It operates at 5.0V ±10%, consumes ≤50mA active current and ≤45mA standby current, and is packaged in 24-pin SOIC (PSG24) for board-level density in embedded control and data buffering applications.
For engineers reviewing the 6116SA35SOG8 datasheet, 6116SA35SOG8 pinout, 6116SA35SOG8 application, or 6116SA35SOG8 equivalent, this page delivers verified timing specs (tRC = 35ns), power modes (TTL/CMOS standby), DC electrical characteristics (VIH = 2.2V min, VOL = 0.4V max), and package-confirmed pin mapping for reliable integration into legacy and space-constrained systems.
Technical Context
The 6116SA35SOG8 implements fully static asynchronous operation-no clocks or refresh required-and uses address decoding logic to drive a 128 × 128 memory array. Chip Select (CS) controls automatic entry into low-power standby mode when HIGH, reducing system-level power and thermal load.
Its TTL-compatible inputs/outputs interface directly with legacy microcontrollers and bus controllers without level-shifting. The device supports two read cycles (CS- or OE-controlled) and two write cycles (WE- or CS-controlled), with guaranteed timing parameters including tAA = 35ns, tOE = 25ns, and tWC = 35ns across the industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2K × 8-bit (16,384 bits), enabling byte-wide data access without multiplexing |
| Access Time (tAA) | 35ns max at VCC = 5.0V ±10%, TA = –40°C to +85°C - defines minimum clock-to-data latency in synchronous systems |
| Supply Voltage | 4.5V to 5.5V - compatible with standard 5V TTL logic rails and legacy power domains |
| Standby Current (ISB) | 45mA max (TTL-level CS), 10mA max (CMOS-level CS) - enables dynamic power gating in battery-aware designs |
| Input Compatibility | TTL-level VIH ≥ 2.2V, VIL ≤ 0.8V - ensures direct interfacing with 74LS/74ALS families without translators |
| Output Drive | VOL ≤ 0.4V @ IOL = 8mA, VOH ≥ 2.4V @ IOH = –4mA - meets TTL fan-out requirements (≥10 LS loads) |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and transportation electronics |
Pinout & Package
6116SA35SOG8 is housed in a 24-pin gull-wing SOIC (PSG24) package, 300-mil body width, surface-mount compatible with standard reflow profiles and IPC-7351B land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A10 | Address Inputs | 11-bit address bus selecting one of 2,048 memory locations; no latching required |
| I/O0–I/O7 | Bi-directional Data Bus | 8-bit parallel interface supporting simultaneous read/write; high-impedance during standby or deselect |
| CS | Chip Select | Active-low enable controlling memory activation and automatic TTL/CMOS standby entry |
| WE | Write Enable | Active-low signal initiating write cycle; overlaps with CS LOW to define write window |
| OE | Output Enable | Active-low control for output drivers; allows read data to appear on I/O pins only when asserted |
| VCC | Power Supply | +5V supply pin; decoupling capacitor placement near this pin is critical for noise immunity |
| GND | Ground Reference | Signal and power ground return; requires low-inductance connection to minimize switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Static Operation | No clocks or refresh circuitry needed - simplifies system design and eliminates refresh overhead in microcontroller-based systems |
| Two Standby Modes | TTL-level (ISB ≤ 45mA) and CMOS-level (ISB1 ≤ 10mA) standby - selectable via CS voltage threshold for fine-grained power control |
| Alpha-Particle Immunity | CMOS process eliminates soft-error susceptibility - suitable for high-reliability industrial and transportation applications |
| Direct TTL Interface | Input/output voltage thresholds match 74LS family - removes need for external level shifters or buffers |
| Military Qualification Option | Available in MIL-STD-883 Class B variants (e.g., 6116SA35TDB) - supports extended temperature and screening requirements |
Applications
| Industrial PLC Data Buffering | Legacy Microcontroller Memory Expansion |
|---|---|
Use Scenario: Storing real-time sensor logs and control state variables in programmable logic controllers operating in factory-floor environments. IC Role / Device Role / Timing Role: Asynchronous SRAM providing non-refreshed, low-latency storage for CPU read/write bursts during scan cycles. Use Value: 35ns access time enables deterministic response within 1ms PLC scan windows; industrial temp rating ensures reliability at 85°C ambient. | Use Scenario: Expanding RAM capacity for 8-bit microcontrollers (e.g., Intel 8051, Zilog Z8) in medical instrumentation and test equipment. IC Role / Device Role / Timing Role: Byte-wide memory mapped at fixed address space, accessed via parallel bus with CS/OE/WE handshaking. Use Value: TTL compatibility eliminates glue logic; SOIC packaging supports compact PCB layouts in space-constrained enclosures. |
| Avionics Data Acquisition Buffer | Communications Protocol Stack Memory |
Use Scenario: Capturing high-speed analog-to-digital conversion streams in airborne telemetry units where radiation tolerance is critical. IC Role / Device Role / Timing Role: Static buffer holding sampled data prior to packetization and RF transmission; powered continuously during flight. Use Value: CMOS process eliminates alpha-particle soft errors; 35ns tRC supports sampling rates up to 28.6 MHz burst capture. | Use Scenario: Holding intermediate packet buffers and protocol state tables in RS-485 or CAN gateway modules. IC Role / Device Role / Timing Role: Shared memory resource accessed by host MCU and peripheral interface logic for message queuing and header processing. Use Value: Dual-read capability (CS- or OE-controlled) enables concurrent access arbitration; low standby current extends uptime in battery-backed gateways. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AS6C1008-35SIN | 3.3V-only supply (not 5V compatible); 35ns access; same 2K×8 organization and SOIC-24 package | Requires level translation or separate 3.3V rail; unsuitable for pure 5V systems | Select only if migrating to 3.3V architecture and redesigning power delivery |
| IS61LV25616AL-10TLI | 16-bit bus width (256K×16), 10ns access, 3.3V supply; different pinout and organization | Not pin-compatible; requires PCB redesign and firmware address remapping | Choose for higher bandwidth and density where 5V operation is not required |
Compared with AS6C1008-35SIN and IS61LV25616AL-10TLI, the 6116SA35SOG8 uniquely supports legacy 5V TTL systems with zero-level-shift integration, maintains identical pinout across speed grades, and provides proven industrial temperature stability without architectural changes.
Availability
6116SA35SOG8 is available at Aetrix Electronics and suitable for industrial PLCs, legacy microcontroller upgrades, avionics data loggers, and communications gateways requiring stable component supply across extended product lifecycles.
Supply support for 6116SA35SOG8 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 memory solutions for automotive, industrial, and infrastructure markets.
The 6116SA/LA family was designed specifically for drop-in replacement of aging 2K×8 SRAMs in 5V industrial systems, emphasizing long-term availability, military-grade reliability options, and backward-compatible timing and signaling.
FAQ
What is the maximum operating temperature range for the 6116SA35SOG8?
The 6116SA35SOG8 is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the Renesas datasheet Section "Recommended Operating Temperature and Supply Voltage" and applies specifically to the SOIC-packaged commercial/industrial variants like 6116SA35SOG8. It is not rated for military-grade –55°C to +125°C operation unless ordered as a TDB or DB variant.
Does the 6116SA35SOG8 require a refresh signal or clock input?
No, the 6116SA35SOG8 is a fully static RAM and requires no refresh signal or clock input. Its internal circuitry is entirely asynchronous and retains data indefinitely as long as power is applied and CS remains LOW during active use. This eliminates timing-critical refresh routines in microcontroller firmware and simplifies hardware design compared to DRAM solutions.
What is the standby current consumption of the 6116SA35SOG8 under TTL-level chip select?
The 6116SA35SOG8 draws ≤45mA of standby current (ISB) when CS is held at TTL HIGH level (VIH ≥ 2.2V) with VCC = 5.5V and f = fMAX. This value is specified in Table 8 of the Renesas datasheet for the SA version across commercial and industrial grades and reflects worst-case conditions for thermal and power budgeting.
Is the 6116SA35SOG8 pin-compatible with other speed grades in the 6116SA/LA family?
Yes, the 6116SA35SOG8 is pin-compatible with all other 24-pin SOIC variants in the 6116SA/LA family (e.g., 6116SA20SOG8, 6116LA25SOGI8). The pinout, package footprint, and signal definitions are identical across speed grades and power variants (SA/LA), enabling direct substitution in existing PCB layouts without modification.
Can the 6116SA35SOG8 be used in a 3.3V system?
No, the 6116SA35SOG8 is specified only for 5.0V ±10% operation (4.5V–5.5V). Its DC characteristics-including VIH minimum (2.2V), VOL maximum (0.4V), and internal logic thresholds-are optimized for 5V TTL compatibility. Using it at 3.3V violates the absolute maximum ratings and will result in undefined behavior, data corruption, or failure to meet timing specifications.
6116SA35SOG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 35ns
- Access Time:
- 35 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
6116SA35SOG8 FAQ
1.How can I place an order for 6116SA35SOG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 6116SA35SOG8 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 6116SA35SOG8 reliable?
The price and inventory of 6116SA35SOG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 6116SA35SOG8 is usually 5 days.
3.What payment methods are accepted for 6116SA35SOG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6116SA35SOG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6116SA35SOG8?
6116SA35SOG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6116SA35SOG8 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 6116SA35SOG8?
For technical support, including 6116SA35SOG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6116SA35SOG8 requirements.
6.How does Aetrix verify that 6116SA35SOG8 is sourced from the original manufacturer or authorized distributors?
All 6116SA35SOG8 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 6116SA35SOG8 meets industry standards.
7.What is the process for return or replacement of 6116SA35SOG8?
All 6116SA35SOG8 units undergo pre-shipment inspection (PSI). If there is an issue with 6116SA35SOG8, 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 6116SA35SOG8 part is unused and in its original packaging.
Return procedure for 6116SA35SOG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6116SA35SOG8 Tags
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