UPI-452 CHMOS PROGRAMMABLE I/O PROCESSOR

The Intel UPI-452 (Universal Peripheral Interface) is a 68 pin CHMOS Slave I/O Processor with a sophisticated bi-directional FIFO buffer interface on the slave bus and a two channel DMA processor on-chip. The UPI-452 is the newest member of Intels UPI family of products. It is a general-purpose slave I/O Processor that allows the designer to grow a customized interface solution.

■ 83C452/80C452:3.5 to 14 MHz Clock Rate

■ Software Compatible with the MCS-51 Family

■ 128-Byte Bi-Directional FIFO Slave Interface

■ Two DMA Channels

■ 256 c 8-Bit Internal RAM

■ 34 Additional Special Function Registers

■ 40 Programmable I/O Lines

■ Two 16-Bit Timer/Counters

■ Boolean Processor

■ Bit Addressable RAM

■ 8 Interrupt Sources

■ Programmable Full Duplex Serial Channel

■ 64K Program Memory Space

■ 64K Data Memory Space

■ 68-Pin PGA and PLCC (See Packaging Spec., Order: Ý231369)