The document describes the CY7B131 and its companion device, the CY7B141. These are high-speed BiCMOS 1K by 8 dual-port static RAMs available in a 52-lead PLCC package. The devices feature fully asynchronous operation with independent control pins for each port, including Chip Enable (CE), Write Enable (R/W), and Output Enable (OE). They include BUSY output flags to indicate when ports are accessing the same memory location and an Interrupt flag (INT) for specific address conditions.
| Memory Size | 1K x 8 bits |
|---|---|
| Package Type | 52-lead PLCC |
| Maximum Access Time (CY7B131-15) | 15 ns |
| Operating Temperature (Commercial) | 0°C to +70°C |
Yes, it can be utilized as either a standalone RAM or as a MASTER dual-port RAM in conjunction with the CY7B141 SLAVE.
The BUSY signal indicates that the port is trying to access the same memory location currently being accessed by the other port.