The CAT28C64BPI-15 is a 64K (8K x 8) CMOS EEPROM from Catalyst Semiconductor. This is an older device, likely an END-OF-LIFE product. This EEPROM features a parallel interface, meaning data is transferred in parallel across multiple data lines. The '-15' likely indicates the access time in nanoseconds, making this a relatively fast EEPROM for its era.

Applications

• Industrial control systems: Storage of firmware and configuration parameters in PLCs and other industrial controllers.
• Telecommunications equipment: Storing configuration data in network devices and communication systems.
• Embedded systems: Program storage and data logging in various embedded applications where high speed and non-volatility were required.
• Instrumentation: Storage of calibration constants and measurement data in test and measurement equipment.
• Early PCs and Computer Systems: BIOS storage and other critical system parameters.

Features

• 64K (8K x 8) EEPROM: Provides 64 Kbits of non-volatile memory organized as 8K bytes.
• Parallel interface: Allows for fast data transfer using a parallel bus.
• Fast access time: Features a typical access time of 150 ns (as implied by '-15').
• Automatic page write: Simplifies write operations by automatically handling page write timing.
• Data protection: Built-in data protection features prevent accidental data corruption.
• Low power CMOS technology: Minimizes power consumption compared to older EEPROM technologies.

Benefits

• Non-volatile storage: Retains data even when power is removed.
• Fast data access: Parallel interface and fast access time enable quick data retrieval.
• Easy integration: Simple interface simplifies integration into existing systems.
• Reliable data storage: Provides a robust and durable solution for storing critical data.
• Cost-effective: Offers a cost-effective solution for non-volatile memory requirements in older designs.

Additional Details

The CAT28C64BPI-15 requires a 5V power supply for operation. The parallel interface typically consists of address lines, data lines, and control signals such as Chip Enable (CE), Output Enable (OE), and Write Enable (WE). Due to its END-OF-LIFE status, finding replacements or alternatives may be necessary for new designs. Consider modern serial EEPROMs or flash memory devices for comparable functionality with increased density and improved features.