SEMICONDUCTOR
82C37A
March 1997
CMOS High Performance Programmable DMA Controller
Features
Description
• Compatibl...
SEMICONDUCTOR
82C37A
March 1997
CMOS High Performance Programmable DMA Controller
Features
Description
Compatible with the NMOS 8237A
Four Independent Maskable Channels with Autoinitialization Capability
Cascadable to any Number of Channels
High Speed Data Transfers: - Up to 4MBytes/sec with 8MHz Clock - Up to 6.25MBytes/sec with 12.5MHz Clock
Memory-to-Memory Transfers
Static
CMOS Design Permits Low Power Operation - ICCSB = 10µA Maximum - ICCOP = 2mA/MHz Maximum
Fully TTL/
CMOS Compatible
Internal Registers may be Read from Software
The 82C37A is an enhanced version of the industry standard 8237A Direct Memory Access (DMA) controller, fabricated using Harris’ advanced 2 micron
CMOS process. Pin compatible with NMOS designs, the 82C37A offers increased functionality, improved performance, and dramatically reduced power consumption. The fully static design permits gated clock operation for even further reduction of power.
The 82C37A controller c...