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70T659S10BCI is listed in the Memory IC range at ChipApex. The manufacturer field lists Renesas Electronics Corporation. Its product description is IC SRAM 4.5MBIT PAR 256CABGA. Review the specifications below when checking this part for your BOM.
Memory IC specifications for 70T659S10BCI
- Description：IC SRAM 4.5MBIT PAR 256CABGA
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tray
- Memory Type：Volatile
- Memory Format：SRAM
- Technology：SRAM - Dual Port, Asynchronous
- Memory Size：4.5Mbit
- Memory Organization：128K x 36
- Memory Interface：Parallel
- Clock Frequency：-
- Write Cycle Time - Word, Page：10ns
- Voltage - Supply：2.4V ~ 2.6V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：256-LBGA
- Supplier Device Package：256-CABGA (17x17)
- Access Time：10 ns
Memory IC datasheet and documents for 70T659S10BCI
Memory IC Overview
The 70T659S10BCI is a dual-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 4.5 megabits, organized as 128K words by 36 bits. The device features asynchronous parallel interfaces with a maximum access time of 10 nanoseconds. It operates within a supply voltage range of 2.4V to 2.6V and supports an industrial operating temperature range from -40°C to +85°C. The component is housed in a 256-lead CABGA package measuring 17x17 mm.
Memory IC Feature Summary
- Dual-port architecture enabling independent simultaneous read/write operations on separate ports.
Memory IC Applications
- High-speed data buffering in telecommunications systems
- Cache memory implementation in embedded processing units
- Data storage in network infrastructure equipment
Memory IC Procurement Notes
This component has reached end-of-life status, with discontinuance notifications issued by the manufacturer. Verification of current stock availability through authorized distributors is essential. Sourcing may require checking secondary markets or evaluating alternative components due to limited supply chains for obsolete parts.
Memory IC Selection Notes
Engineers should consider the specific 36-bit word width when designing memory interfaces, as this differs from standard 8-bit or 16-bit configurations. The requirement for a strict 2.5V power supply must be addressed in the system design. Compatibility with existing PCB footprints using the 256-CABGA package should be verified against new designs.
Memory IC Part Context
The 70T659S10BCI belongs to the 70T659 series of high-performance dual-port SRAMs. This series was designed to offer fast access times for demanding applications requiring concurrent data handling. The part represents a transition point in Renesas's memory portfolio following the acquisition of IDT technologies.
Memory IC Replacement Considerations
No officially confirmed substitute part numbers are documented in the provided source material. Designers should consult Renesas technical support for qualified alternatives compatible with the 70T659 series specifications.
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