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Renesas IDT6116SA45TPI
- Part No.:
- IDT6116SA45TPI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 24-DIP (0.300", 7.62mm)
- Datasheet:
-
IDT6116SA45TPI.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 24DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,805
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Product details
Overview
IDT6116SA45TPI from Integrated Device Technology is a 16K-bit (2K × 8) high-speed CMOS static RAM with 45 ns maximum access time, TTL-compatible I/O, and industrial temperature range (–45°C to +85°C). It operates at 5.0 V ±10%, supports asynchronous read/write cycles without clocks or refresh, and features dual standby modes - TTL-level (25 mA) and CMOS-level (2 mA) - for system power optimization in embedded controllers and data acquisition systems.
For engineers reviewing the IDT6116SA45TPI datasheet, IDT6116SA45TPI pinout, IDT6116SA45TPI application, or IDT6116SA45TPI equivalent, key selection criteria include guaranteed 45 ns tAA/tACS timing, 24-pin SOIC package compatibility, industrial-grade reliability per MIL-STD-883 Class B, and direct replacement capability in legacy 2K×8 SRAM designs requiring low-power standby and battery-backed retention support (via LA variant).
Technical Context
The IDT6116SA45TPI implements fully static asynchronous operation using advanced CMOS technology, eliminating refresh circuitry and clock dependencies. Its address decoder drives a 128 × 128 memory array, with independent CS, OE, and WE controls enabling three-state output management and flexible bus interfacing.
Two distinct standby modes are supported: TTL-level standby (ISB = 25 mA max at fMAX) activates when CS > VIH, while CMOS-level full standby (ISB1 = 2 mA max) engages when CS > VHC and inputs are held at valid logic levels. This dual-mode architecture enables scalable power reduction across active, idle, and deep-sleep system states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2K × 8-bit (16,384 bits), byte-wide parallel interface |
| Access Time (tAA / tACS) | 45 ns max - guarantees reliable read setup within 45 ns of address or chip select assertion |
| Supply Voltage | 5.0 V ±10% - compatible with standard TTL/CMOS 5 V logic rails without level shifting |
| Operating Temperature | –45°C to +85°C - qualified for industrial environments including factory automation and transportation electronics |
| Standby Current (ISB1) | 2 mA max at CMOS-level standby - enables ultra-low-power hold mode during extended idle periods |
| 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 at 4 mA/8 mA) |
| Package | 24-pin SOIC (SO24-2), 300-mil gull-wing footprint - surface-mount compatible with standard reflow profiles |
Pinout & Package
24-pin Small Outline IC (SOIC), 300-mil body width, gull-wing lead form (SO24-2), RoHS-compliant plastic package with exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A10 | Address Inputs | 11-bit binary address bus selecting one of 2,048 memory locations |
| I/O0–I/O7 | Bi-directional Data Bus | 8-bit parallel data path supporting simultaneous read or write transfers |
| CS | Chip Select | Active-low enable controlling device activation and automatic entry into TTL/CMOS standby |
| WE | Write Enable | Active-low signal qualifying write cycles; must be low with CS low to store data |
| OE | Output Enable | Active-low control enabling three-state output drivers during read operations |
| VCC | Power Supply | +5 V supply pin; decoupling required within 10 mm for stable 45 ns timing |
| GND | Ground Reference | Signal and power return path; requires low-inductance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| No refresh required | Fully static architecture eliminates external refresh circuitry and associated timing overhead |
| Dual standby modes | TTL-level (25 mA) and CMOS-level (2 mA) standby reduce system power by up to 90% vs active operation |
| TTL-compatible I/O | Direct interface with 5 V microcontrollers, FPGAs, and ASICs without level translators |
| MIL-STD-883 Class B compliance | Qualified for high-reliability industrial applications including avionics subsystems and rail signaling |
| Alpha-particle immunity | CMOS process minimizes soft-error rate - critical for long-term data integrity in unshielded environments |
Applications
| Industrial PLC Memory Buffer | Legacy Microcontroller Data RAM |
|---|---|
|
Use Scenario: Real-time I/O scanning in programmable logic controllers where deterministic memory access under variable load is essential. IC Role / Device Role / Timing Role: Primary 2K×8 data RAM providing zero-wait-state read/write access to CPU during scan cycles. Use Value: 45 ns tAA ensures consistent response within 45 ns of address assertion, meeting sub-100 µs scan cycle deadlines. |
Use Scenario: External RAM expansion for 8-bit and 16-bit microcontrollers (e.g., 8051, Z80, 68000) in legacy instrumentation. IC Role / Device Role / Timing Role: Asynchronous byte-wide memory extension supporting MOVX, LDX, or similar instructions. Use Value: TTL-compatible I/O and no-refresh operation simplify interface design and eliminate refresh interrupt overhead. |
| Avionics Sensor Data Cache | Railway Signaling Controller RAM |
|
Use Scenario: Temporary storage of high-frequency sensor readings (e.g., accelerometers, gyros) in airborne health monitoring units. IC Role / Device Role / Timing Role: High-reliability buffer holding pre-processed telemetry before transmission over ARINC 429 or MIL-STD-1553. Use Value: MIL-STD-883 Class B qualification and alpha-particle immunity ensure data integrity in radiation-prone flight environments. |
Use Scenario: Safety-critical memory for interlocking logic in railway signaling cabinets operating in harsh outdoor conditions. IC Role / Device Role / Timing Role: Non-volatile cache holding route state and failure logs during mains power interruption. Use Value: Industrial temperature rating (–45°C to +85°C) and dual standby modes support continuous operation across European winter to desert summer extremes. |
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 organization, 45 ns access, 3.3 V core (with 5 V tolerant I/O), 28-pin TSOP | Higher density and lower voltage; requires level-shifting or mixed-voltage board design | Select when upgrading capacity or migrating to 3.3 V systems; not pin-compatible with IDT6116SA45TPI |
| AS6C1008-45ZIN | 128K×8 organization, 45 ns access, 5 V only, 28-pin SOIC, higher ICC1 (35 mA vs 80 mA) | Greater memory depth but larger footprint; lacks MIL-STD-883 qualification | Choose for cost-sensitive industrial applications needing >16K bytes; verify thermal derating at +85°C |
Compared with IDT6116SA45TPI, CY62167EV30LL-45ZSXI offers double density and 3.3 V efficiency but demands PCB redesign, while AS6C1008-45ZIN provides scalability without voltage change yet omits military-grade reliability - making IDT6116SA45TPI optimal for drop-in industrial replacements requiring proven ruggedness.
Availability
IDT6116SA45TPI is available at Aetrix Electronics and suitable for industrial PLCs, avionics sensor interfaces, and railway signaling controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for IDT6116SA45TPI 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-performance CMOS SRAMs for mission-critical systems.
IDT6116SA45TPI belongs to IDT's legacy 6116-series high-speed static RAM product line, designed specifically for industrial and military applications demanding guaranteed timing, low-power standby, and long-term reliability without refresh overhead.
FAQ
What is the maximum operating temperature range for IDT6116SA45TPI?
IDT6116SA45TPI is rated for industrial temperature operation from –45°C to +85°C. This range is validated per manufacturer specifications and supports deployment in factory automation, transportation electronics, and outdoor infrastructure where ambient temperatures exceed commercial-grade limits. The part does not support military-grade –55°C to +125°C operation - that capability is reserved for IDT6116SA45DPI (ceramic DIP) variants.
Does IDT6116SA45TPI require a refresh circuit or clock signal?
No, IDT6116SA45TPI is a fully static RAM and requires no refresh circuitry or clock signal. Its CMOS latch-based memory cells retain data indefinitely as long as power is applied and CS remains asserted. This eliminates refresh timing constraints and simplifies integration with microcontrollers lacking dedicated DRAM controllers.
Can IDT6116SA45TPI be used as a direct replacement for other 2K×8 SRAMs like the HM6116LP-4?
IDT6116SA45TPI shares identical 2K×8 organization, 24-pin SOIC pinout, and TTL-compatible I/O with HM6116LP-4, but offers faster 45 ns access (vs 100 ns) and lower standby current (2 mA vs ~5 mA). Electrical compatibility is confirmed; however, timing-critical systems must validate tOH (5 ns min) and tCHZ (20 ns max) against legacy design margins before substitution.
What are the two standby current specifications for IDT6116SA45TPI?
IDT6116SA45TPI specifies two standby currents: ISB = 25 mA max (TTL-level standby, activated when CS > VIH) and ISB1 = 2 mA max (CMOS-level full standby, activated when CS > VHC and inputs are held at valid logic levels). Designers select between them based on system wake-up latency requirements and power budget constraints.
Is IDT6116SA45TPI compliant with MIL-STD-883 Class B?
Yes, IDT6116SA45TPI is manufactured and tested to MIL-STD-883 Class B requirements, including mechanical shock, vibration, and temperature cycling tests. This qualification confirms suitability for high-reliability applications such as avionics subsystems and defense electronics - though final system-level certification remains the responsibility of the integrating OEM.
IDT6116SA45TPI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 24-DIP (0.300", 7.62mm)
- 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:
- 45ns
- Access Time:
- 45 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 24-PDIP
IDT6116SA45TPI FAQ
1.How can I place an order for IDT6116SA45TPI through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT6116SA45TPI 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 IDT6116SA45TPI reliable?
The price and inventory of IDT6116SA45TPI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT6116SA45TPI is usually 5 days.
3.What payment methods are accepted for IDT6116SA45TPI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT6116SA45TPI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT6116SA45TPI?
IDT6116SA45TPI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT6116SA45TPI 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 IDT6116SA45TPI?
For technical support, including IDT6116SA45TPI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT6116SA45TPI requirements.
6.How does Aetrix verify that IDT6116SA45TPI is sourced from the original manufacturer or authorized distributors?
All IDT6116SA45TPI 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 IDT6116SA45TPI meets industry standards.
7.What is the process for return or replacement of IDT6116SA45TPI?
All IDT6116SA45TPI units undergo pre-shipment inspection (PSI). If there is an issue with IDT6116SA45TPI, 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 IDT6116SA45TPI part is unused and in its original packaging.
Return procedure for IDT6116SA45TPI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT6116SA45TPI Tags
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