The MC68HC705P6A is an EPROM version of the MC68HC05P6 microcontroller. It is a low-cost combination of an M68HC05 Family microprocessor with a 4-channel, 8-bit analog-to-digital (A/D) converter, a 16-bit timer with output compare and input capture, a serial communications port (SIOP), and a computer operating properly (COP) watchdog timer. The M68HC05 CPU core contains 176 bytes of RAM, 4672 bytes of user EPROM, 239 bytes of bootloader ROM, and 21 input/output (I/O) pins (20 bidirectional, 1 input-only). This device is available in either a 28-pin plastic dual in-line (PDIP) or a 28-pin small outline integrated circuit (SOIC) package.
Features
Features of the MC68HC705P6A include:
• Low cost
• M68HC05 core
• 28-pin SOIC, PDIP, or windowed DIP package
• 4672 bytes of user EPROM (including 48 bytes of page zero EPROM and 16 bytes of user vectors)
• 239 bytes of bootloader ROM
• 176 bytes of on-chip RAM
• 4-channel 8-bit A/D converter
• SIOP serial communications port
• 16-bit timer with output compare and input capture
• 20 bidirectional I/O lines and 1 input-only line
