EF6805R2 Datasheet - STMicroelectronics

EF6805R2 8-BIT MICROCOMPUTER UNIT

The EF6805U3 Microcomputer Unit (MCU) is a member of the 6805 Family of low-cost single-chip Microcomputers. The 8-bit microcomputer contains a CPU, on-chip CLOCK, ROM, RAM, I/O, and TIMER. It is designed for the user who needs an economical microcomputer with the proven capabilities of the 6800-bas.

EF6805R2 Features

* 32 TTL/CMOS COMPATIBLE I/O LINES 24 BIDIRECTIONAL (8 lines are LED compatible) 8 INPUT-ONLY 3776 BYTES OF USER ROM 112 BYTES OF RAM SELF-CHECK MODE ZERO-CROSSING DETECT/INTERRUPT INTERNAL 8-BIT TIMER WITH 7-BIT SOFTWARE PROGRAMMABLE PRESCALER AND CLOCK SOURCE 5V SINGLE SUPPLY SOFTWARE FEATURES 10 PO

EF6805R2_STMicroelectronics.pdf