8-BIT MICROCOMPUTER UNIT
EF6805U3 8-BIT MICROCOMPUTER UNIT . . . . . . . . . . . . . . . . . . . . . . HARDWARE 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...
STMicroelectronics