4K x 8 Dual-Port Static RAMs and 4K x 8 Dual-Port Static RAM with Semaphores The CY7B135-25JI is a high-speed CMOS 3.3V 16K x 8 dual-port static RAM manufactured by Cypress Semiconductor. Key specifications include:  

- **Organization**: 16K x 8 (131,072 bits)  
- **Supply Voltage**: 3.3V ±10%  
- **Access Time**: 25 ns  
- **Operating Current**: 120 mA (typical)  
- **Standby Current**: 5 mA (typical)  
- **I/O Compatibility**: 5V-tolerant inputs, 3.3V outputs  
- **Package**: 48-lead PLCC (Plastic Leaded Chip Carrier)  
- **Temperature Range**: Industrial (-40°C to +85°C)  
- **Features**: Fully asynchronous operation, independent port control, interrupt support for inter-processor communication  

This device is designed for applications requiring high-speed data sharing between processors.