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Renesas IDT6116SA25SO
- Part No.:
- IDT6116SA25SO
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
IDT6116SA25SO.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,498
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Product details
Overview
IDT6116SA25SO from Integrated Device Technology is a 16K-bit (2K × 8) high-speed CMOS static RAM with 25 ns access time, TTL-compatible I/O, and 5 V ±10% supply operation. It features automatic standby mode on chip select high, low-power consumption (80 mA typical ICC1, 25 mA ISB), and is packaged in 24-pin SOIC for compact board integration. Used in military-grade avionics data buffers requiring deterministic timing and no refresh.
For engineers reviewing the IDT6116SA25SO datasheet, IDT6116SA25SO pinout, IDT6116SA25SO application, or IDT6116SA25SO equivalent, key selection criteria include guaranteed 25 ns tAA/tACS across commercial temperature range (0°C to +70°C), CMOS-level full-standby current of 2 mA, and compatibility with legacy 5 V bus systems without level-shifting.
Technical Context
The IDT6116SA25SO implements fully static asynchronous architecture-no clocks or refresh cycles required-and uses address decoding logic driving a 128 × 128 memory array. Its control interface relies on three independent active-low signals: CS (chip select), WE (write enable), and OE (output enable), enabling precise read/write state management via truth table-defined modes.
It supports two standby power states: TTL-level standby (ISB = 25 mA max at fMAX) and CMOS-level full standby (ISB1 = 2 mA max), triggered by CS > VIH or CS > VHC respectively. 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.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16,384 bits (2K × 8 organization) - supports byte-wide data paths without external multiplexing |
| Access Time (tAA / tACS) | 25 ns max - guarantees deterministic read latency under worst-case commercial conditions (0°C to +70°C) |
| Supply Voltage | 5.0 V ±10% - compatible with standard 5 V logic rails; no external regulation needed |
| Operating Current (ICC1) | 80 mA max - enables stable operation in power-constrained embedded controllers |
| Standby Current (ISB1) | 2 mA max (CMOS-level) - reduces system idle power by >97% vs. active mode |
| I/O Compatibility | TTL input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and output drive (VOH ≥ 2.4 V, VOL ≤ 0.4 V) - eliminates need for bus translators |
| Package | 24-pin SOIC (SO24-2, 300 mil width) - surface-mount compatible with automated PCB assembly |
Pinout & Package
Package: 24-pin Small Outline Integrated Circuit (SOIC), gull-wing lead form, 300 mil body width (SO24-2), RoHS-compliant plastic construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A10 | Address Inputs | 11-bit binary address bus selecting one of 2K locations; latched on CS/WE/OE transitions |
| I/O0–I/O7 | Bi-directional Data Bus | 8-bit parallel interface; high-impedance when CS high or during write cycles with OE high |
| CS | Chip Select | Active-low global enable; forces standby mode and high-Z I/O when high |
| WE | Write Enable | Active-low write control; initiates write cycle only when CS low and WE low |
| OE | Output Enable | Active-low read control; enables output drivers only when CS and OE both low |
| 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 circuitry and I/O signaling |
Key Features
| Feature | Design Value |
|---|---|
| Static Operation | No clock or refresh required - simplifies system timing design and eliminates refresh overhead in microcontroller-based systems |
| Automatic Standby Mode | CS high triggers immediate transition to low-power state - reduces average system power without software intervention |
| TTL-Compatible I/O | Direct interface with 5 V TTL/LS logic families - avoids level shifters and associated signal integrity risks |
| CMOS Process Reliability | Negligible alpha-particle soft-error rate - suitable for aerospace and high-reliability industrial control applications |
| Military Compliance | MIL-STD-883 Class B qualified (when ordered with military suffix) - meets screening and environmental stress requirements for defense platforms |
Applications
| Avionics Data Buffering | Industrial PLC Memory Expansion |
|---|---|
|
Use Scenario: Real-time sensor data capture and temporary storage in flight control computers where deterministic latency and radiation tolerance are critical. IC Role / Device Role / Timing Role: Byte-addressable SRAM serving as scratchpad memory for ADC sample buffering prior to DMA transfer to processor. Use Value: 25 ns tAA ensures sub-microsecond response to interrupt-driven sampling events; CMOS process minimizes SEU-induced corruption in high-altitude environments. |
Use Scenario: Adding local non-refresh memory to programmable logic controllers operating in factory automation environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Standalone 2K × 8 memory node interfaced directly to 8051 or Z80-derived controller buses. Use Value: TTL compatibility allows plug-in replacement of legacy 6116 variants; SOIC package enables high-density I/O module layouts. |
| Legacy Test Equipment Memory | Military Communications Baseband Buffer |
|
Use Scenario: Replacing obsolete SRAMs in aging semiconductor ATE systems requiring long-term component availability and identical timing behavior. IC Role / Device Role / Timing Role: Drop-in functional replacement for original 6116-series parts in pattern generator and response analyzer subsystems. Use Value: Pin-identical layout with verified 25 ns timing margin ensures zero firmware or timing adjustment; DIP/SOIC dual-sourcing supports repair and sustainment. |
Use Scenario: Intermediate-frequency (IF) data buffering in tactical radios where rapid power cycling and EMI resilience are mandatory. IC Role / Device Role / Timing Role: Dual-port accessible memory segment used for interleaved transmit/receive sample storage in burst-mode waveforms. Use Value: Full standby current of 2 mA enables fast wake-from-sleep (<100 ns tPU) while maintaining data integrity during RF transmission gaps. |
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 organization, 45 ns access, 3.3 V core (with 5 V tolerant I/O), 44-pin TSOP | Higher density and lower voltage; requires PCB redesign and level-aware timing analysis | Choose for new designs needing >16K capacity and modern low-voltage infrastructure; not drop-in for IDT6116SA25SO |
| AS6C1008-25ZIN | 128K × 8 organization, 25 ns access, 5 V operation, 28-pin SOIC | Larger memory footprint and different pinout (28-pin vs. 24-pin); incompatible address/data mapping | Consider only if board layout allows rework and system firmware supports extended addressing; not pin-compatible |
Compared with CY62167EV30LL-45ZSXI and AS6C1008-25ZIN, the IDT6116SA25SO delivers verified 25 ns performance in a legacy-optimized 24-pin SOIC footprint with zero voltage translation-making it irreplaceable for sustaining production of fielded 5 V systems where layout and timing margins are fixed.
Availability
IDT6116SA25SO is available at Aetrix Electronics and suitable for avionics data buffering, industrial PLC memory expansion, and legacy test equipment repair requiring stable component supply and long-term obsolescence management.
Supply support for IDT6116SA25SO 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 semiconductor company specializing in timing, memory, and interface solutions before its acquisition by Renesas Electronics in 2019. It pioneered high-reliability CMOS SRAMs for mission-critical systems.
The IDT6116SA25SO belongs to IDT's legacy 6116-series high-speed static RAM product line, engineered for deterministic timing, zero-refresh operation, and seamless integration into 5 V TTL-based embedded and defense systems.
FAQ
What is the maximum operating temperature range for the IDT6116SA25SO?
The IDT6116SA25SO is specified for the commercial temperature range of 0°C to +70°C. This is confirmed in the "Recommended Operating Temperature and Supply Voltage" table (DSC-3089/03, page 3), where the "Com'l." grade explicitly lists 0°C to +70°C. The part number suffix "SO" denotes SOIC packaging and commercial temperature grade-not industrial or military.
Does the IDT6116SA25SO require a refresh circuit or clock signal?
No, the IDT6116SA25SO does not require any refresh circuit or clock signal. As stated in the "Description" section (page 1), it uses "fully static asynchronous circuitry" and operates "requiring no clocks or refreshing for operation." This eliminates timing-critical refresh overhead in microcontroller or FPGA-based systems.
What is the standby current specification for IDT6116SA25SO under CMOS-level disable?
The full standby supply current (ISB1) for IDT6116SA25SO is 2 mA maximum, measured when CS > VHC, VCC = max, and input voltages are outside the switching threshold (VIN < VLC or VIN > VHC) at f = 0. This value is listed in Table 8 (page 4) under the "6116SA25" row for the "ISB1" parameter in the "Com'l & Ind" column.
Is the IDT6116SA25SO pin-compatible with other 6116-series variants like IDT6116LA25SO?
Yes, the IDT6116SA25SO is pin-compatible with IDT6116LA25SO and all other 6116-series parts in the same package (e.g., SO24-2). The "Pin Configurations" diagram (page 2) and "Pin Description" table (page 4) confirm identical 24-pin assignments across SA/LA versions. Functional differences (e.g., standby current, battery retention) do not affect pinout or timing interface.
What logic family is the IDT6116SA25SO designed to interface with directly?
The IDT6116SA25SO is designed for direct interface with standard 5 V TTL logic families. Its inputs meet TTL voltage thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V), and outputs drive TTL loads (VOH ≥ 2.4 V at –4 mA, VOL ≤ 0.4 V at 8 mA), as specified in Tables 6 and 7 (pages 3–4). No level-shifting circuitry is required.
IDT6116SA25SO 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:
- 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
IDT6116SA25SO FAQ
1.How can I place an order for IDT6116SA25SO through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT6116SA25SO 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 IDT6116SA25SO reliable?
The price and inventory of IDT6116SA25SO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT6116SA25SO is usually 5 days.
3.What payment methods are accepted for IDT6116SA25SO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT6116SA25SO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT6116SA25SO?
IDT6116SA25SO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT6116SA25SO 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 IDT6116SA25SO?
For technical support, including IDT6116SA25SO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT6116SA25SO requirements.
6.How does Aetrix verify that IDT6116SA25SO is sourced from the original manufacturer or authorized distributors?
All IDT6116SA25SO 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 IDT6116SA25SO meets industry standards.
7.What is the process for return or replacement of IDT6116SA25SO?
All IDT6116SA25SO units undergo pre-shipment inspection (PSI). If there is an issue with IDT6116SA25SO, 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 IDT6116SA25SO part is unused and in its original packaging.
Return procedure for IDT6116SA25SO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT6116SA25SO Tags
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