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7140SA55CB is listed in the Memory IC range at ChipApex. The manufacturer field lists Renesas Electronics Corporation. Its product description is IC SRAM 8KBIT PARALLEL SB48. Review the specifications below when checking this part for your BOM.
The Renesas Electronics Corporation 7140SA55CB is an asynchronous dual-port static random access memory (SRAM) device. It features a storage capacity of 8 kbit organized as 1K x 8 bits. The component supports parallel interface communication with a maximum access time of 55 ns. It operates within a supply voltage range of 4.5 V to 5.5 V and has a maximum power supply current of 110 mA. The device is housed in a CDIP-SB-48 package and functions reliably at temperatures between 0°C and +70°C.
Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance requirements as the part does not meet current standards. Validate package integrity upon receipt, as CDIP-SB-48 units may have limited availability from secondary markets. Ensure compatibility with existing system voltage levels before procurement.
Select this component when dual-port functionality is required for concurrent processor access. Consider the 55 ns access speed against system timing constraints. Evaluate the CDIP-SB-48 package suitability for through-hole mounting processes. Compare power consumption specifications with alternative SRAM families if energy efficiency is critical.
This part belongs to the 7140SA series of dual-port SRAMs manufactured by Renesas Electronics. It shares architectural similarities with other members like the 7140SA55P, differing primarily in packaging type. The series targets applications requiring high-speed, non-volatile-like data retention during active operation.
Public confirmed substitute part numbers include IDT7140SA55CB.
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