The LSI53C141 is a single-chip SCSI controller manufactured by LSI Computer Systems. It is designed to provide a high-performance interface between a host system and SCSI peripherals, enabling data transfer rates suitable for a variety of storage and I/O applications.

Applications

• Hard disk drives
• Tape drives
• CD-ROM drives
• SCSI-based storage systems
• Computer systems requiring SCSI connectivity

Features

• Single-chip SCSI controller
• Supports synchronous and asynchronous SCSI data transfers
• Integrated DMA controller for efficient data transfer
• High-speed SCSI interface
• Command queuing capabilities

Benefits

• Simplifies system design by integrating all SCSI controller functions into a single chip
• Provides high-performance data transfer rates
• Reduces CPU overhead through DMA data transfers
• Enhances system throughput with command queuing

Additional Details

The LSI53C141 features an integrated DMA controller that handles data transfers between the SCSI bus and system memory without requiring constant CPU intervention. This significantly reduces CPU overhead and improves overall system performance. It supports both synchronous and asynchronous data transfer modes, allowing it to be used with a wide range of SCSI devices. The command queuing feature enables the controller to process multiple SCSI commands concurrently, further enhancing system throughput. Detailed technical specifications depend on the specific revision and configuration of the chip. It is often used in legacy systems requiring SCSI interfaces, though modern systems typically employ more advanced interface technologies.