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7143SA25JI
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Product Detailed Parameters
- Description：IC SRAM 32KBIT PARALLEL 68PLCC
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Memory Type：Volatile
- Memory Format：SRAM
- Technology：SRAM - Dual Port, Asynchronous
- Memory Size：32Kbit
- Memory Organization：2K x 16
- Memory Interface：Parallel
- Clock Frequency：-
- Write Cycle Time - Word, Page：25ns
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：68-LCC (J-Lead)
- Supplier Device Package：68-PLCC (24.21x24.21)
- Access Time：25 ns
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Overview
The Renesas Electronics Corporation 7143SA25JI is a dual-port asynchronous static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 32 kilobits, organized as 2K words by 8 bits. The device features a parallel interface with a maximum access time of 25 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 68-pin PLCC package.
Feature Summary
- Supports independent simultaneous read/write operations at both ports for high-throughput data handling.
Applications
- Legacy embedded systems requiring fast parallel data access
- High-speed data buffering in communication equipment
- Cache memory applications in industrial control systems
Procurement Notes
Verify component authenticity due to end-of-life status. Confirm RoHS compliance requirements as the part may not meet current environmental standards. Validate package integrity and pin alignment against the 68-PLCC specification before integration into new designs.
Selection Notes
Select this component when dual-port functionality is required for concurrent processor access. Ensure the design accommodates the 25ns timing constraints and 5V logic levels. Consider the 68-PLCC footprint for PCB layout compatibility.
Part Context
This part belongs to the 7143SA series of dual-port SRAMs from Renesas. It shares architectural similarities with other members like the 7143SA25G but differs in package type and specific pinout configuration suitable for surface-mount assembly.
Replacement Considerations
Check for direct substitutes such as the IDT7143SA25JI or equivalent dual-port SRAMs with matching 32Kb capacity and 25ns speed. Verify pin-to-pin compatibility with the 68-PLCC package.
FAQ
What is the memory organization of the 7143SA25JI?
The memory is organized as 2K x 8 bits, providing a total capacity of 32 kilobits.
Does the 7143SA25JI support simultaneous access?
Yes, it is a dual-port SRAM allowing independent read and write operations at Port A and Port B simultaneously.
