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Renesas IDT6116SA20SO
- Part No.:
- IDT6116SA20SO
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
IDT6116SA20SO.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,481
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Product details
Overview
IDT6116SA20SO from Integrated Device Technology is a 16K-bit (2K × 8) high-speed CMOS static RAM with 20 ns maximum access time, TTL-compatible I/O, and 5 V ±10% supply operation. It features asynchronous static operation-no clock or refresh required-and supports military, industrial, and commercial temperature ranges. Used in embedded controllers, instrumentation buffers, and legacy system memory expansion where deterministic timing and low standby power are critical.
For engineers reviewing the IDT6116SA20SO datasheet, IDT6116SA20SO pinout, IDT6116SA20SO application, or IDT6116SA20SO equivalent, key selection criteria include guaranteed 20 ns access under military-grade conditions, TTL-level interface compatibility, 24-pin SOIC packaging, and dual standby modes (TTL- and CMOS-level) enabling system-level power optimization in real-time control and avionics subsystems.
Technical Context
The IDT6116SA20SO implements fully static asynchronous logic with independent chip select (CS), output enable (OE), and write enable (WE) controls, supporting three distinct operational modes: read, write, and standby. Its address decoder drives a 128 × 128 memory array, and all inputs/outputs meet TTL voltage thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) at VCC = 5.0 V ±10%.
Two standby current modes are supported: ISB = 40 mA (TTL-level CS deassertion) and ISB1 = 2 mA (CMOS-level CS deassertion with VIN < VLC or > VHC). Data retention is not supported-this is the SA (standard power) variant, distinct from the LA battery-backup version.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2K × 8-bit (16,384 bits), single-port SRAM |
| Access Time (tAA) | 20 ns max - guarantees data valid within 20 ns of address/CS assertion at VCC = 4.5–5.5 V |
| Supply Voltage | 5.0 V ±10% - operates across full industrial/military range without regulation overhead |
| Operating Temperature | –45°C to +85°C - qualified for industrial applications per ordering code "I" |
| Standby Current (ISB) | 40 mA max - active-low TTL-compatible CS disables outputs and reduces dynamic power |
| Input/Output Compatibility | TTL - interfaces directly with 74LS/74ALS logic without level-shifting |
| Package | 24-pin SOIC (SO24-2), 300-mil width - surface-mount compatible with standard reflow profiles |
Pinout & Package
24-pin Small Outline IC (SOIC), gull-wing lead form, 300-mil body width (SO24-2), RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A10 | Address Inputs | 11-bit binary address bus selecting one of 2K locations |
| I/O0–I/O7 | Bi-directional Data Bus | 8-bit parallel interface; high-impedance when CS or OE inactive |
| CS | Chip Select | Active-low enable; forces standby mode and high-Z I/O when HIGH |
| WE | Write Enable | Active-low control; initiates write cycle only when CS = LOW |
| OE | Output Enable | Active-low control; enables output drivers during read cycles |
| VCC | Power Supply | +5 V ±10% main supply; powers core logic and I/O buffers |
| GND | Ground Reference | 0 V return path for all internal circuits and I/O signals |
Key Features
| Feature | Design Value |
|---|---|
| No refresh required | Fully static architecture eliminates external refresh circuitry and timing constraints |
| Dual standby modes | Supports both TTL-level (ISB = 40 mA) and CMOS-level (ISB1 = 2 mA) power-down for flexible system sleep management |
| TTL-compatible I/O | Direct interface with legacy 5 V logic families; no level translators needed in mixed-technology systems |
| Military/industrial qualification | Manufactured to MIL-STD-883 Class B standards; validated for –45°C to +85°C operation |
| Low soft-error rate | Advanced CMOS process minimizes alpha-particle-induced bit flips-critical for avionics and medical devices |
Applications
| Industrial PLC Memory Buffer | Avionics Data Acquisition Module |
|---|---|
Use Scenario: Real-time I/O scanning in programmable logic controllers requiring deterministic memory access without CPU intervention. IC Role / Device Role / Timing Role: Asynchronous SRAM providing zero-wait-state data buffering between FPGA-based I/O processors and microcontroller buses. Use Value: 20 ns tAA ensures sub-microsecond response to sensor interrupts, meeting IEC 61131-3 scan-cycle deadlines in safety-critical motion control. |
Use Scenario: Storing calibrated sensor coefficients and transient flight parameters in airborne inertial measurement units (IMUs). IC Role / Device Role / Timing Role: Non-refreshing memory holding mission-critical configuration data accessible during high-G maneuvers and EMI events. Use Value: CMOS-level standby (ISB1 = 2 mA) extends battery-backed hold time during main power loss, complying with DO-160 Section 22 lightning-induced transient requirements. |
| Medical Imaging Frame Store | Legacy Industrial HMI Controller |
Use Scenario: Temporary storage of digitized X-ray or ultrasound frames prior to compression and network transmission in portable diagnostic equipment. IC Role / Device Role / Timing Role: High-reliability SRAM acting as frame buffer between ADC interface and ARM9-based image processor. Use Value: 24-pin SOIC footprint enables compact PCB layout in space-constrained handheld enclosures while maintaining 100% pin compatibility with prior 6116 designs. |
Use Scenario: Replacing obsolete NMOS RAM in decades-old CNC machine tool controllers requiring drop-in reliability upgrades. IC Role / Device Role / Timing Role: Pin- and timing-compatible replacement for 2K×8 SRAMs in 8086/8088-based backplanes. Use Value: Guaranteed 20 ns access at –45°C ensures stable operation in unheated factory environments where ambient swings exceed commercial-grade limits. |
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 | 32K × 8-bit, 45 ns access, 3.3 V core (with 5 V tolerant I/O), SOIC-28 | Higher density and lower voltage, but requires PCB redesign due to 28-pin footprint and different timing margins | Select when upgrading capacity and power efficiency is prioritized over pin compatibility |
| AS6C1008-20TIN | 128K × 8-bit, 20 ns access, 5 V operation, SOIC-28 | Four times the memory depth; same speed grade but incompatible pinout and address bus width (17-bit vs. 11-bit) | Choose for new designs needing scalable memory without legacy footprint constraints |
Compared with IDT6116SA20SO, CY62167EV30LL-45ZSXI offers higher integration at lower voltage but demands layout changes, while AS6C1008-20TIN delivers greater capacity at identical speed-neither provides pin-for-pin replacement, making IDT6116SA20SO the sole option for direct 24-pin SOIC retrofits in industrial control backplanes.
Availability
IDT6116SA20SO is available at Aetrix Electronics and suitable for industrial automation, avionics subsystems, and medical diagnostics equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for IDT6116SA20SO 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), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, and RF solutions for communications and computing infrastructure.
IDT6116SA20SO belongs to IDT's legacy high-reliability SRAM product line, designed specifically for industrial and military systems where deterministic timing, radiation tolerance, and long-term obsolescence management are mandatory design requirements.
FAQ
What is the operating temperature range for IDT6116SA20SO?
IDT6116SA20SO is rated for industrial temperature operation from –45°C to +85°C, as indicated by the "I" suffix in its ordering code. It is not rated for military (–55°C to +125°C) or commercial (0°C to +70°C) ranges unless explicitly ordered with corresponding temperature-grade suffixes (e.g., "Y" for commercial or "D" for military).
Does IDT6116SA20SO support battery backup or data retention?
No. IDT6116SA20SO is the standard-power SA variant and does not support battery backup or low-voltage data retention. That capability is exclusive to the LA variant (e.g., IDT6116LA20SO), which specifies 2 V data retention voltage and microamp-level retention current.
Is IDT6116SA20SO pin-compatible with other 2K × 8 SRAMs?
Yes-IDT6116SA20SO uses the industry-standard 24-pin SOIC (SO24-2) package with JEDEC-standard pinout for 2K × 8 SRAMs, including compatibility with IS61C256, HM6116LP-4, and other legacy 24-pin devices. Address, data, and control signal assignments match the common 2K × 8 footprint.
What is the difference between ISB and ISB1 standby current in IDT6116SA20SO?
ISB = 40 mA max is the standby current when CS is driven to a TTL-high level (≥2.2 V); ISB1 = 2 mA max occurs only when CS exceeds VHC (VCC – 0.2 V) and all inputs are held at valid CMOS logic levels. ISB1 enables deeper power savings but requires stricter input voltage control.
Can IDT6116SA20SO be used with 3.3 V logic systems?
No. IDT6116SA20SO requires a 5.0 V ±10% supply and is specified only for TTL-compatible signaling (VIH ≥ 2.2 V, VIL ≤ 0.8 V). It is not 3.3 V tolerant and will not operate reliably with 3.3 V I/O drivers or supplies without level translation.
IDT6116SA20SO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- 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:
- 20ns
- Access Time:
- 20 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
IDT6116SA20SO FAQ
1.How can I place an order for IDT6116SA20SO through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT6116SA20SO 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 IDT6116SA20SO reliable?
The price and inventory of IDT6116SA20SO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT6116SA20SO is usually 5 days.
3.What payment methods are accepted for IDT6116SA20SO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT6116SA20SO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT6116SA20SO?
IDT6116SA20SO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT6116SA20SO 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 IDT6116SA20SO?
For technical support, including IDT6116SA20SO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT6116SA20SO requirements.
6.How does Aetrix verify that IDT6116SA20SO is sourced from the original manufacturer or authorized distributors?
All IDT6116SA20SO 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 IDT6116SA20SO meets industry standards.
7.What is the process for return or replacement of IDT6116SA20SO?
All IDT6116SA20SO units undergo pre-shipment inspection (PSI). If there is an issue with IDT6116SA20SO, 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 IDT6116SA20SO part is unused and in its original packaging.
Return procedure for IDT6116SA20SO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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