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7164S20DB
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Product Detailed Parameters
- Description：IC SRAM 64KBIT PARALLEL 28CDIP
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Memory Type：Volatile
- Memory Format：SRAM
- Technology：SRAM - Asynchronous
- Memory Size：64Kbit
- Memory Organization：8K x 8
- Memory Interface：Parallel
- Clock Frequency：-
- Write Cycle Time - Word, Page：20ns
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Package / Case：28-CDIP (0.600", 15.24mm)
- Supplier Device Package：28-CDIP
- Access Time：20 ns
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Overview
The Renesas Electronics Corporation 7164S20DB is a 64K-bit (8K x 8) asynchronous static random-access memory (SRAM) IC. It operates on a single 5.0V power supply and features a 20 ns access time. The device utilizes BICMOS technology and includes a reduced power standby mode to minimize energy consumption during idle periods. It is housed in a 28-lead Ceramic Dual In-Line Package (CDIP).
Feature Summary
- Asynchronous parallel interface for standard data bus integration.
- Reduced power standby mode for enhanced energy efficiency.
- BICMOS technology implementation for reliable operation.
Applications
- Industrial control systems requiring non-volatile-like retention with low standby power.
- Embedded memory buffers in legacy hardware architectures.
- Data storage applications in equipment operating within standard commercial temperature ranges.
Procurement Notes
Verify component authenticity through authorized channels, as this part is discontinued. Confirm package integrity due to age-related handling risks. Ensure design-in compatibility with existing 5V logic levels. Review datasheet revisions for any manufacturing changes. Validate supply chain sources against official manufacturer lists.
Selection Notes
Select this component only if the application requires a 5V supply and CDIP packaging. Consider modern alternatives if lower voltage or surface-mount formats are needed. Evaluate total cost of ownership including potential obsolescence premiums. Assess thermal requirements against the specified operating range. Verify pinout compatibility with existing PCB layouts.
Part Context
This SRAM belongs to the 7164 series, designed for general-purpose memory applications. It represents a legacy solution from Renesas, formerly IDT, utilizing established BICMOS processes. The series offers a balance of speed and power consumption suitable for older industrial and consumer electronics designs.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official Renesas resources for current equivalent recommendations or cross-reference with compatible industry-standard SRAMs that match the 8Kx8 organization and 20ns speed grade.
