NTE3881 Overview
The NTE3881 Parallel I/O Circuit (PIO) is a programmable, two port device which provides a TTL patible interface between peripheral devices and the NTE3880. The Central Processing Unit (CPU) can configure the NTE3881 to interface with a wide range of peripheral devices with no other external logic required. Typical peripheral devices that are fully patible with the NTE3881 include most keyboard, paper tape readers...