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Renesas IDT6116SA25SO8
- Part No.:
- IDT6116SA25SO8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
IDT6116SA25SO8.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,404
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Product details
Overview
IDT6116SA25SO8 from Integrated Device Technology is a 16K-bit (2K × 8) high-speed CMOS static RAM with 25 ns maximum access time, TTL-compatible I/O, and full static operation requiring no clocks or refresh. It operates at 5.0 V ±10%, supports industrial temperature range (–45°C to +85°C), and features dual standby modes - TTL-level (ISB = 40 mA max) and CMOS-level (ISB1 = 2 mA max) - for system power optimization in embedded controllers and data acquisition systems.
For engineers reviewing the IDT6116SA25SO8 datasheet, IDT6116SA25SO8 pinout, IDT6116SA25SO8 application, or IDT6116SA25SO8 equivalent, key selection considerations include its 24-pin SOIC package, 2K × 8 organization, guaranteed tRC = 25 ns read cycle time, battery backup capability (LA variant only), and compatibility with legacy 6116-family designs requiring low-power static memory with deterministic timing.
Technical Context
The IDT6116SA25SO8 implements a fully static asynchronous architecture with independent chip select (CS), output enable (OE), and write enable (WE) controls, enabling flexible read/write sequencing without clock dependency. Its address decoder drives a 128 × 128 memory array, supporting single-cycle random-access reads and writes with address setup (tAS = 0 ns) and hold (tOH = 5 ns) constraints.
Two distinct standby modes are supported: TTL-level standby (CS > VIH) draws ≤40 mA, while CMOS-level standby (CS > VHC with inputs at valid logic levels) reduces current to ≤2 mA. Input and output circuits are designed for direct TTL interfacing, with VIH = 2.2 V min and VOL = 0.4 V max at IOL = 8 mA, ensuring robust noise margin in mixed-logic systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2K × 8-bit (16,384 bits total); enables byte-wide data bus interfacing without external demultiplexing |
| Access Time (tAA) | 25 ns max; guarantees data valid within 25 ns after address stabilization, critical for 40 MHz CPU bus timing |
| Read Cycle Time (tRC) | 25 ns max; defines minimum consecutive read interval; supports burst-free memory access at up to 40 MHz |
| Supply Voltage | 5.0 V ±10% (4.5–5.5 V); compatible with standard TTL/CMOS logic rails and legacy 5 V system designs |
| Operating Temperature | –45°C to +85°C (industrial grade); qualified for use in factory automation, test equipment, and telecom line cards |
| Standby Current (ISB1) | 2 mA max (CMOS-level); enables ultra-low-power retention during processor sleep states without external power gating |
| I/O Compatibility | TTL-input and TTL-output; eliminates level-shifter requirements when interfacing with 74LS/74F logic or microcontrollers |
Pinout & Package
Package: 24-pin SOIC (SO24-2), 300 mil body width, gull-wing lead form, RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A10 | Address Inputs | 11-bit address bus; selects one of 2,048 memory locations; latched internally on CS/OE/WE transitions |
| I/O0–I/O7 | Bi-directional Data Bus | 8-bit parallel data path; high-impedance during standby/read disable to prevent bus contention |
| CS | Chip Select | Active-low enable; initiates access and controls standby entry/exit; dominant over OE/WE for power state control |
| OE | Output Enable | Active-low; enables data output drivers only during read cycles; does not affect write or standby behavior |
| WE | Write Enable | Active-low; gates write operations; must be synchronized with CS and address stability per tAW/tWP timing |
| VCC | Power Supply | +5 V supply pin; decoupling capacitor required within 10 mm for stable 25 ns timing compliance |
| GND | Ground Reference | Signal and power ground return; requires low-inductance connection to minimize switching noise on I/O lines |
Key Features
| Feature | Design Value |
|---|---|
| No refresh required | Fully static CMOS design eliminates DRAM-style refresh circuitry, reducing FPGA/CPU overhead and PCB complexity |
| Dual standby modes | TTL-level (≤40 mA) and CMOS-level (≤2 mA) standby support dynamic power scaling based on system activity state |
| TTL-compatible I/O | Direct interface with 74LS/74F logic and microcontroller GPIOs without level shifters or pull-ups |
| Industrial temperature rating | Qualified from –45°C to +85°C; meets extended thermal requirements for non-military industrial deployments |
| Low alpha-particle sensitivity | Advanced CMOS process minimizes soft-error rate (SER), enhancing data integrity in high-reliability applications |
Applications
| Industrial PLC Memory Buffer | Legacy Microcontroller Data RAM |
|---|---|
|
Use Scenario: Stores real-time I/O status, ladder logic variables, and configuration registers in programmable logic controllers operating in factory environments. IC Role / Device Role / Timing Role: Primary 2K × 8 static RAM providing deterministic 25 ns read/write access for scan-cycle execution under -45°C to +85°C conditions. Use Value: Eliminates refresh overhead and ensures consistent timing across temperature extremes, improving scan-cycle repeatability and deterministic control loop performance. |
Use Scenario: Serves as external data RAM for 8-bit microcontrollers (e.g., Intel 8051, Zilog Z8) in instrumentation and medical devices where code space is constrained. IC Role / Device Role / Timing Role: Byte-addressable, pin-compatible upgrade to original 6116 SRAMs, maintaining identical 24-pin SOIC footprint and timing interface. Use Value: Enables drop-in replacement without layout change while delivering lower standby current (2 mA vs. older 5 mA parts), extending battery-backed operation. |
| Telecom Line Card Buffer | Test Equipment Pattern Memory |
|
Use Scenario: Buffers protocol stack buffers and call-state tables in T1/E1 line interface units deployed in central office cabinets. IC Role / Device Role / Timing Role: High-reliability static RAM with MIL-STD-883 Class B qualification options; used in dual-rail 5 V systems with strict EMI immunity requirements. Use Value: CMOS process ensures negligible soft-error susceptibility in electrically noisy telecom environments, preserving data integrity over 10+ year service life. |
Use Scenario: Stores stimulus/response patterns in automated test equipment (ATE) for semiconductor wafer probing and board-level functional testing. IC Role / Device Role / Timing Role: High-speed 25 ns access enables tight pattern generation timing; TTL compatibility simplifies integration with legacy ATE controller logic. Use Value: Guarantees tRC = 25 ns across full industrial temperature range, allowing consistent pattern clock rates without derating or thermal throttling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62167EV30LL-45ZSXI | 512K × 16-bit, 45 ns access, 3.3 V core, 5 V tolerant I/O; larger density but slower and different voltage domain | Requires level translation for 5 V-only systems; suited for modern low-voltage upgrades, not pin-compatible replacement | Select only if migrating to 3.3 V architecture and needing higher density; not suitable for direct IDT6116SA25SO8 substitution |
| IS61LV25616AL-10TLI | 256K × 16-bit, 10 ns access, 3.3 V supply; significantly faster but incompatible voltage and organization | Designed for high-speed embedded processors; lacks 5 V tolerance and industrial temp support of IDT6116SA25SO8 | Use only in new 3.3 V designs requiring sub-10 ns timing; incompatible with legacy 5 V buses and 2K × 8 addressing |
Compared with CY62167EV30LL-45ZSXI and IS61LV25616AL-10TLI, the IDT6116SA25SO8 uniquely delivers 5 V TTL compatibility, 2K × 8 organization, and industrial temperature support in a 24-pin SOIC - making it the only viable choice for maintaining legacy 6116-based systems without redesigning power or address logic.
Availability
IDT6116SA25SO8 is available at Aetrix Electronics and suitable for industrial PLCs, legacy microcontroller systems, telecom line cards, and automated test equipment requiring stable component supply, long-lifecycle support, and guaranteed industrial-grade qualification.
Supply support for IDT6116SA25SO8 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
Integrated Device Technology (IDT) was a U.S.-based fabless semiconductor company specializing in timing, memory interface, RF, and sensor solutions before its acquisition by Renesas Electronics in 2019.
The IDT6116SA25SO8 belongs to IDT's legacy high-reliability static RAM product line, engineered for industrial and military applications demanding deterministic timing, low power, and long-term supply stability in 5 V systems.
FAQ
What is the maximum guaranteed access time for IDT6116SA25SO8?
The IDT6116SA25SO8 has a maximum guaranteed address access time (tAA) of 25 ns across the industrial temperature range (–45°C to +85°C) at VCC = 5.0 V ±10%. This value is production-tested and specified in the official IDT datasheet DSC-3089/03, ensuring deterministic timing for CPU or FPGA memory interfaces without derating.
Does IDT6116SA25SO8 support battery backup operation?
No - battery backup operation is exclusive to the LA variant (e.g., IDT6116LA25SO8), which specifies 2 V data retention voltage and µW-level standby current. The IDT6116SA25SO8 is the standard-power version and does not support data retention below 4.5 V; its ISB1 = 2 mA minimum requires VCC ≥ 4.5 V for valid operation.
What package type is used for IDT6116SA25SO8?
IDT6116SA25SO8 uses a 24-pin Small Outline Integrated Circuit (SOIC) package designated SO24-2 - a 300 mil body width, gull-wing lead form compliant with JEDEC MS-012. This matches the footprint of industry-standard 24-pin SOIC SRAMs and supports reflow soldering per IPC-J-STD-020.
Is IDT6116SA25SO8 pin-compatible with other 6116-series SRAMs?
Yes - IDT6116SA25SO8 maintains full pin-to-pin compatibility with all industry-standard 2K × 8 6116-family SRAMs (e.g., HM6116, MK6116, CY6116) in the same 24-pin DIP/SOIC/SOJ packages. Signal names (A0–A10, I/O0–I/O7, CS, OE, WE, VCC, GND) and timing conventions are functionally identical per JEDEC standard 6116 specification.
What are the DC input voltage thresholds for IDT6116SA25SO8?
IDT6116SA25SO8 specifies VIH(min) = 2.2 V and VIL(max) = 0.8 V at VCC = 5.0 V ±10%, meeting standard TTL logic thresholds. These values ensure reliable interfacing with 74LS, 74F, and most 5 V microcontroller GPIOs without external biasing or level translation circuitry.
IDT6116SA25SO8 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:
- 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
IDT6116SA25SO8 FAQ
1.How can I place an order for IDT6116SA25SO8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT6116SA25SO8 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 IDT6116SA25SO8 reliable?
The price and inventory of IDT6116SA25SO8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT6116SA25SO8 is usually 5 days.
3.What payment methods are accepted for IDT6116SA25SO8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT6116SA25SO8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT6116SA25SO8?
IDT6116SA25SO8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT6116SA25SO8 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 IDT6116SA25SO8?
For technical support, including IDT6116SA25SO8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT6116SA25SO8 requirements.
6.How does Aetrix verify that IDT6116SA25SO8 is sourced from the original manufacturer or authorized distributors?
All IDT6116SA25SO8 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 IDT6116SA25SO8 meets industry standards.
7.What is the process for return or replacement of IDT6116SA25SO8?
All IDT6116SA25SO8 units undergo pre-shipment inspection (PSI). If there is an issue with IDT6116SA25SO8, 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 IDT6116SA25SO8 part is unused and in its original packaging.
Return procedure for IDT6116SA25SO8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT6116SA25SO8 Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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