1 piece Z84C44AC6 | Z80A CMOS
SIO SERIAL INPUT/OUTPUT CONTROLLER
4MHz , extended temperature range -40°C to +85°C in PLCC44 package

Z84C44AC6  Z84C44AC6 Z84C44AC6
Z84C44AC6 Z84C44AC6

The Z80C SIO Serial Input/Output Controller is a dual-channel data communication interface with extraordinary versatility and capability. Its basic functions as a serial-to-parallel, parallel-to-serial September 1988 Z84C40 Z84C41-Z84C42 zaoc SIO CMOS VERSION B DIP-40 (Plastic) C PLCC44 (PlastiC) o DIP-40 (CeramiC) (Ordering Information at the end of the datasheet) converter/controller can be programmed by a CPU for a broad range of serial communication applications.
The device supports all common asynchronous and synchronous protocols, byte- or bit-oriented and performs all of the functions traditionally done by UARTs, USARTs and synchronous communication controllers combined, plus additional functions traditionally performed by the CPU, Moreover, it does this on two fully-independent channels, with an exceptionally sophisticated interrupt structure that allows very fast transfers.
Full interfacing is provided for CPU or DMA control. In addition to data communication, the circuit can handle virtually all types of serial I/O with fast (or slow) peripheral devices.
While designed primarily as a member of Z80 family, its versatility makes it well suited to many other CPUs.