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HomeProductsIntegrated Circuits (ICs)Memory70V9279L6PRFG
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70V9279L6PRFG - Renesas Electronics America Inc

Manufacturer Part Number
70V9279L6PRFG
Manufacturer
Renesas Electronics Corporation
Allelco Part Number
98D-70V9279L6PRFG
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
14,460 pcs available, New & Original
Parts Description
IC SRAM 512KBIT LVTTL 128TQFP
Package
128-TQFP (14x20)
Data sheet
70V9279L6PRFG.pdf
RoHs Status
 
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In stock: 14460

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Specifications

70V9279L6PRFG Tech Specifications
Renesas Electronics America Inc - 70V9279L6PRFG technical specifications, attributes, parameters and parts with similar specifications to Renesas Electronics America Inc - 70V9279L6PRFG

Product Attribute Attribute Value
Manufacturer Renesas Electronics Corporation
Write Cycle Time - Word, Page -
Voltage - Supply 3V ~ 3.6V
Technology SRAM - Dual Port, Standard
Supplier Device Package 128-TQFP (14x20)
Series -
Package / Case 128-LQFP
Package Tray
Operating Temperature 0°C ~ 70°C (TA)
Product Attribute Attribute Value
Mounting Type Surface Mount
Memory Type Volatile
Memory Size 512Kbit
Memory Organization 32K x 16
Memory Interface LVTTL
Memory Format SRAM
Clock Frequency 100 MHz
Base Product Number 70V9279
Access Time 15 ns

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
ECCN OBSOLETE

Frequently Asked Questions(FAQ)

How does the 70V9279L6PRFG compare to other dual-port SRAMs in terms of access time and clock frequency under typical industrial operating conditions?
The 70V9279L6PRFG delivers a consistent 15 ns access time at its specified maximum clock frequency of 100 MHz, which positions it competitively within the industrial-grade dual-port SRAM market. While many contemporary alternatives offer similar or slightly faster access times, such as 12–14 ns, they often require tighter voltage tolerances or extended temperature ranges beyond the 0°C to 70°C range supported by this device. The combination of LVTTL interface compatibility, stable performance across the full industrial temperature band, and a 3 V to 3.6 V supply window provides a balanced trade-off for systems where thermal and power constraints are moderate but reliability is non-negotiable.
What are the implications of using the 70V9279L6PRFG in a system requiring simultaneous read and write operations across both ports?
The 70V9279L6PRFG supports true dual-port architecture, enabling independent access to memory locations from either port without arbitration delays. This allows two external controllers to perform concurrent transactions—such as one reading while the other writes—with deterministic timing based on the 15 ns access latency. However, designers must account for potential bus contention if both ports attempt to drive common address or data lines simultaneously. Proper signal buffering and careful layout are recommended to maintain integrity during overlapping operations, especially near the 100 MHz operational limit.
Is the 70V9279L6PRFG suitable for applications requiring long-term data retention outside active operation?
No, the 70V9279L6PRFG is classified as volatile memory and requires continuous power to retain stored data. Once power drops below the minimum VCC threshold (typically 3 V), data loss occurs rapidly—often within milliseconds depending on ambient temperature. For applications needing persistent storage across power cycles, an external non-volatile memory solution such as serial Flash or battery-backed SRAM should be integrated alongside this component.
How does the 512 Kbit capacity of the 70V9279L6PRFG map to practical application needs in embedded control systems?
With an organization of 32K x 16 bits, the 70V9279L6PRFG offers 512 kilobits (64 kilobytes) of addressable memory space. In real-time control applications—such as motor drives or sensor fusion nodes—this equates to approximately 128 KB of user-accessible RAM capable of holding multiple buffers, state machines, or intermediate computation results. While sufficient for mid-complexity tasks, larger algorithms like advanced image processing may exceed this limit, necessitating external memory expansion or architectural optimization.
What design considerations arise when interfacing the 70V9279L6PRFG with a microcontroller operating at 3.3 V logic levels?
The 70V9279L6PRFG uses LVTTL-compatible I/O, which aligns well with standard 3.3 V microcontrollers. However, level translation is unnecessary since both devices operate within compatible voltage ranges (3 V to 3.6 V). Designers should still ensure that noise margins remain adequate under worst-case conditions—particularly during high-speed transfers near 100 MHz—by maintaining clean power delivery, minimizing trace lengths on critical signals, and avoiding crosstalk between adjacent TQFP pins.
How does the operating temperature range of the 70V9279L6PRFG influence its suitability for automotive or outdoor industrial environments?
The specified operating temperature range of 0°C to 70°C limits the 70V9279L6PRFG to indoor or climate-controlled industrial settings. Automotive-grade or harsh-environment deployments typically require components rated for -40°C to +85°C or wider. Attempting to use this part outside its thermal envelope risks reduced reliability, increased failure rates, and potential timing violations due to slower transistor response at low temperatures or leakage currents at elevated temperatures.
Can the 70V9279L6PRFG be substituted directly with the 70V9279L7PRFGI in existing designs?
Yes, the 70V9279L7PRFGI is listed as a substitute for the 70V9279L6PRFG, indicating functional parity across key electrical and mechanical parameters. Both share the same pinout, package (128-TQFP), memory organization, and interface type. However, differences in revision suffixes suggest possible variations in manufacturing process or quality grade—designers should verify availability, lead times, and any subtle changes in timing specifications before committing to substitution in safety-critical applications.
What impact does the 128-TQFP (14x20 mm) package have on PCB routing complexity when integrating the 70V9279L6PRFG?
The 128-pin thin quad flat pack occupies a relatively large footprint (14×20 mm), which can complicate routing in space-constrained designs. High-density layouts demand careful attention to signal integrity for the 100 MHz clock and bidirectional data buses, particularly when dealing with closely spaced differential pairs or shared strobe lines. Thermal vias under the exposed pad may also be required to manage junction temperature during sustained data bursts.
How does the absence of ECC support in the 70V9279L6PRFG affect its use in mission-critical systems?
Without built-in error correction, the 70V9279L6PRFG lacks protection against soft errors induced by cosmic radiation or electrical noise. In applications like medical instrumentation or avionics where data accuracy is paramount, this omission increases risk. Mitigation strategies include watchdog timers, periodic memory scrubbing, or redundancy schemes—but these add overhead and complexity not present in hardened memory solutions.
What are the consequences of exceeding the 100 MHz clock frequency on the 70V9279L6PRFG’s performance?
Operating above 100 MHz violates the device’s guaranteed specifications and leads to unpredictable behavior, including failed setup/hold timing checks, corrupted data reads, and potential latch-up events. Even marginal overclocking can degrade reliability over time due to increased dynamic power dissipation and signal degradation. Designers targeting higher bandwidth should evaluate alternative SRAMs with explicit overspeed capabilities or consider pipelining techniques to reduce effective latency.
How does the LVTTL interface of the 70V9279L6PRFG simplify integration compared to CMOS-level signaling?
LVTTL provides standardized 0 V to 3.3 V logic thresholds, making the 70V9279L6PRFG compatible with most modern digital logic families without additional translation circuitry. This reduces bill-of-materials cost and simplifies board-level debugging. However, LVTTL has higher power consumption than CMOS variants, which may be undesirable in ultra-low-power designs despite its convenience in mixed-voltage environments.
Why might a designer choose the 70V9279L6PRFG over single-port SRAM alternatives despite its higher pin count?
True dual-port capability enables parallel task execution—critical in systems requiring concurrent data acquisition and processing. For example, one port can buffer incoming sensor data while the other prepares output frames for display, effectively doubling throughput without software intervention. Although single-port SRAMs use fewer pins, they introduce serialization bottlenecks that scale poorly with system complexity.

Parts with Similar Specifications

The three parts on the right have similar specifications to Renesas Electronics America Inc 70V9279L6PRFG

Product Attribute 70V9279L6PRFG8 70V9279L6PRF8 70V9279L7PRFG 70V9279L7PRFGI8
Part Number 70V9279L6PRFG8 70V9279L6PRF8 70V9279L7PRFG 70V9279L7PRFGI8
Manufacturer Renesas Electronics America Inc Renesas Electronics America Inc Renesas Electronics America Inc Renesas Electronics America Inc
Memory Type - - - -
Memory Organization - - - -
Technology - - - -
Memory Format - - - -
Write Cycle Time - Word, Page - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Base Product Number - DAC34H84 MAX500 ADS62P42
Clock Frequency - - - -
Memory Interface - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage - Supply - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Access Time - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Series - - - -
Memory Size - - - -

70V9279L6PRFG Datasheet PDF

Download 70V9279L6PRFG pdf datasheets and Renesas Electronics America Inc documentation for 70V9279L6PRFG - Renesas Electronics America Inc.

PCN Packaging
Label Change-All Devices 01/Dec/2022.pdf
PCN Obsolescence/ EOL
Mult Dev EOL 19/Jan/2022.pdf Mult Dev EOL 28/Feb/2022.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Arch***ct
    Jul 15, 2026

    Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.

  • FPGA***lorer88
    Jul 7, 2026

    The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.

  • Nath***oleman
    Jun 29, 2026

    Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

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Delivery Time

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
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Renesas Electronics America Inc

70V9279L6PRFG

Renesas Electronics America Inc
98D-70V9279L6PRFG

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