Renesas IDT6116SA20SOI8
- Part No.:
- IDT6116SA20SOI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
IDT6116SA20SOI8.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 24SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:4,671
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Product details
Overview
IDT6116SA20SOI8 from Integrated Device Technology is a 16K-bit (2K × 8) high-speed CMOS static RAM with 20 ns access time, TTL-compatible I/O, and industrial temperature range operation (–45°C to +85°C). It features automatic standby mode on chip select high, low-power operation (80 mA typical ICC1), and 24-pin SOIC packaging. Used in real-time data buffering for industrial controllers and legacy embedded systems requiring non-refreshed memory.
For engineers reviewing the IDT6116SA20SOI8 datasheet, IDT6116SA20SOI8 pinout, IDT6116SA20SOI8 application, or IDT6116SA20SOI8 equivalent, key selection criteria include access time vs. power trade-offs, TTL-level interface compatibility, standby current under CS-high conditions, and SOIC-24 mechanical fit in space-constrained PCB layouts.
Technical Context
The IDT6116SA20SOI8 implements fully static asynchronous logic with no clocks or refresh required. Its address decoder drives a 128 × 128 memory array, and I/O control circuitry supports three-state outputs via OE and bidirectional data flow via WE-controlled write cycles.
Chip select (CS) directly controls power state: CS HIGH forces full standby (ISB1 ≤ 2 mA at VCC = 5.5 V), while CS LOW enables read/write operations. Input and output voltage thresholds (VIH = 2.2 V min, VIL = 0.8 V max) ensure reliable interfacing with standard TTL logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2K × 8-bit (16,384 bits total); supports byte-wide data bus without external multiplexing |
| Access Time (tAA) | 20 ns max at VCC = 4.5–5.5 V; enables 50 MHz burst read capability in synchronous systems |
| Supply Voltage | 5.0 V ± 10% (4.5–5.5 V); compatible with standard 5 V TTL/CMOS rails |
| Operating Current (ICC1) | 80 mA max at f = 0; defines worst-case active power draw during sustained read/write |
| Standby Current (ISB1) | 2 mA max at CMOS-level CS deassertion (VCC = 5.5 V); enables low-quiescent power hold mode |
| Input/Output Compatibility | TTL-compatible VIH/VIL and VOH/VOL; eliminates level-shifter requirements in mixed-logic designs |
| Temperature Range | Industrial: –45°C to +85°C; qualified per IDT's industrial reliability standards for factory automation use |
Pinout & Package
Package: 24-pin Small Outline Integrated Circuit (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 address bus; selects one of 2,048 memory locations; latched on CS/WE/OE transitions |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel data path; high-impedance when CS = HIGH or OE = HIGH and WE = HIGH |
| CS | Chip Select | Active-low enable; asserts memory operation and disables outputs when HIGH (standby entry) |
| WE | Write Enable | Active-low control; initiates write cycle when CS = LOW and WE = LOW; holds data valid window (tDW) |
| OE | Output Enable | Active-low control; enables output drivers only during read cycles; overrides WE during CS-active reads |
| VCC | Power Supply | +5 V supply pin; must be decoupled locally to suppress switching noise on 8-bit data bus |
| GND | Ground Reference | Signal and power ground return; requires low-inductance connection to minimize read/write timing jitter |
Key Features
| Feature | Design Value |
|---|---|
| Static Operation | No clock or refresh circuitry required; simplifies system design and eliminates refresh overhead in microcontroller-based systems |
| Automatic Standby Mode | CS HIGH forces immediate transition to low-power state (ISB1 ≤ 2 mA); reduces thermal load in always-on industrial modules |
| TTL-Compatible I/O | Direct interface with 74LS/74F logic families without level shifters; ensures signal integrity across 20 ns access window |
| CMOS Process Reliability | Negligible alpha-particle soft-error rate; suitable for long-life deployments in vibration-prone industrial enclosures |
| Military-Grade Packaging Option | Same die available in ceramic DIP (D24-2) and SOJ (SO24-4); enables drop-in replacement in MIL-STD-883 Class B environments |
Applications
| Industrial PLC Data Buffer | Legacy Medical Instrument Memory |
|---|---|
|
Use Scenario: Real-time acquisition of sensor inputs in programmable logic controllers with deterministic scan cycles. IC Role / Device Role / Timing Role: Static RAM buffer holding intermediate process values between scan intervals; accessed synchronously with CPU clock edges. Use Value: 20 ns tAA ensures data availability within single CPU instruction cycle at 25 MHz bus speeds; ISB1 ≤ 2 mA extends uptime during brown-out events. |
Use Scenario: Storing calibration coefficients and patient waveform snapshots in FDA-cleared diagnostic equipment. IC Role / Device Role / Timing Role: Non-volatile shadow RAM holding critical settings; retains data during brief AC interruptions via system backup capacitors. Use Value: TTL-compatible I/O guarantees interoperability with aging 74ACT logic; industrial temp range validates operation inside sealed medical chassis. |
| Avionics Test Equipment Cache | Point-of-Sale Terminal Firmware Store |
|
Use Scenario: High-reliability data capture in ground-based avionics test rigs simulating flight control signals. IC Role / Device Role / Timing Role: Dual-port accessible memory bank storing timestamped CAN message logs; accessed via dedicated DMA channel. Use Value: 24-pin SOIC footprint allows dense layout on compact test board; CMOS process immunity prevents SEU-induced log corruption. |
Use Scenario: Local firmware storage in retail terminals operating 24/7 in uncontrolled ambient environments. IC Role / Device Role / Timing Role: Boot-time configuration memory holding display language, tax tables, and peripheral mappings. Use Value: –45°C to +85°C rating ensures cold-storage warehouse and hot retail floor operation; 80 mA ICC1 limits thermal rise in sealed plastic enclosures. |
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 supply; no 5 V tolerance | Requires level translation in 5 V systems; higher density but slower speed | Select only if migrating to 3.3 V architecture and needing >16K capacity |
| AS6C1008-20TIN | 128K × 8, 20 ns, 5 V, SOIC-28; larger package and pin count | Not pin-compatible; requires PCB redesign due to 28-pin SOIC and relocated VCC/GND | Consider for capacity upgrade paths where board re-spin is acceptable |
Compared with IDT6116SA20SOI8, CY62167EV30LL-45ZSXI offers greater density but mandates 3.3 V infrastructure, while AS6C1008-20TIN provides same-speed 128K storage at the cost of mechanical incompatibility-neither serves as a drop-in replacement.
Availability
IDT6116SA20SOI8 is available at Aetrix Electronics and suitable for industrial automation, legacy medical instrumentation, and avionics test equipment requiring stable component supply across extended product lifecycles.
Supply support for IDT6116SA20SOI8 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) is a U.S.-based semiconductor company specializing in timing, memory, and interface solutions for communications, computing, and industrial markets.
IDT6116SA20SOI8 belongs to IDT's legacy high-reliability SRAM product line, designed specifically for industrial and military applications demanding guaranteed 5 V TTL interoperability and extended temperature operation without refresh circuitry.
FAQ
What is the maximum operating temperature range for the IDT6116SA20SOI8?
The IDT6116SA20SOI8 is rated for industrial temperature operation from –45°C to +85°C. This specification is verified per IDT's internal qualification standards and aligns with the "I" suffix in its ordering code. It does not support military-grade –55°C to +125°C operation, which applies only to versions with "D" or "Y" package codes.
Does the IDT6116SA20SOI8 require an external clock or refresh signal?
No, the IDT6116SA20SOI8 uses fully static CMOS architecture and requires no clock, timer, or refresh signal. Data retention is indefinite as long as VCC remains within 4.5–5.5 V and ambient temperature stays within –45°C to +85°C. This eliminates refresh overhead in microcontroller-based systems.
What is the standby current consumption of the IDT6116SA20SOI8 when CS is HIGH?
When CS is driven HIGH (≥ VCC – 0.2 V), the IDT6116SA20SOI8 enters full standby mode with ISB1 ≤ 2 mA at VCC = 5.5 V and TA = +25°C. This ultra-low quiescent current enables energy-efficient hold states in battery-backed or intermittent-power systems.
Is the IDT6116SA20SOI8 pin-compatible with other 24-pin SRAMs like the HM6116LP-4?
No, the IDT6116SA20SOI8 is not pin-compatible with HM6116LP-4. Although both are 24-pin SOIC SRAMs, HM6116LP-4 places VCC on pin 24 and GND on pin 12, whereas IDT6116SA20SOI8 uses pin 24 for GND and pin 12 for I/O6. Direct substitution would cause power shorting and functional failure.
Can the IDT6116SA20SOI8 interface directly with 3.3 V microcontrollers?
The IDT6116SA20SOI8 is specified for 5 V operation only (4.5–5.5 V) and has TTL-compatible input thresholds (VIH ≥ 2.2 V). While some 3.3 V MCUs may drive it reliably, output VOH ≈ 2.4 V at IOH = –4 mA falls below typical 3.3 V logic high minimums (2.6–2.8 V), requiring level translation for robust bidirectional communication.
IDT6116SA20SOI8 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:
- 20ns
- Access Time:
- 20 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SOIC
IDT6116SA20SOI8 FAQ
1.How can I place an order for IDT6116SA20SOI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT6116SA20SOI8 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 IDT6116SA20SOI8 reliable?
The price and inventory of IDT6116SA20SOI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT6116SA20SOI8 is usually 5 days.
3.What payment methods are accepted for IDT6116SA20SOI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT6116SA20SOI8 transactions.
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4.How is shipping managed for IDT6116SA20SOI8?
IDT6116SA20SOI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT6116SA20SOI8 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 IDT6116SA20SOI8?
For technical support, including IDT6116SA20SOI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT6116SA20SOI8 requirements.
6.How does Aetrix verify that IDT6116SA20SOI8 is sourced from the original manufacturer or authorized distributors?
All IDT6116SA20SOI8 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 IDT6116SA20SOI8 meets industry standards.
7.What is the process for return or replacement of IDT6116SA20SOI8?
All IDT6116SA20SOI8 units undergo pre-shipment inspection (PSI). If there is an issue with IDT6116SA20SOI8, 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 IDT6116SA20SOI8 part is unused and in its original packaging.
Return procedure for IDT6116SA20SOI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT6116SA20SOI8 Tags

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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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