EM78P447 - EMC

EM78P447 8-BIT MICRO-CONTROLLER

EM78P247/447A/B/C 8-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT Preliminary The EM78P247/447A/B/C is an 8-bit microprocessor with low-power, high speed CMOS technology. There are 4Kx13 bits Electical One Time Programmable Read Only Memory (OTP-ROM) within it. It provides 1 Protect bit and 6 One-time Programmable Option bits to protect the OTP memory c.

Features

• Operating voltage range: 2.5V~5.5V
• Available in temperature range: 0°C~70°C
• Operating frequency range: Crystal Type: DC~20MHz at 5V DC~8MHz at 3V RC Type: DC~4MHz at 5V DC~4MHz at 3V
• 2Kx13 on chip ROM (EM78267A/B/C)
• 4Kx13 on chip ROM (EM78467A/B/C)
• 9 special function registers
• 148x8 general purpose registers (SRAM)
• 3 bi-directional tri-state I/O ports (20 I/O pins for EM78P247/447A) (24 I/O pins for EM78P247/447B) (22 I/O pins for EM78247/447C)
• 5 level stack for subroutine nesting
• 8-bit real time clock/counter (TCC) with selective signal sources and trigger .