GENERAL DESCRIPTION
The MC68HC05PD6 is a member of the MC68HC05 family of HCMOS
Microcontroller Units (MCUs). This sophisticated 80-pin MCU has 16k-bytes of
user ROM, 512 bytes of RAM, and eight parallel ports. Ports A, B, C, F, G, and H
have eight I/O pins, port D and E have 8 output-only pins. The MC68HC05PD6
includes a Time Base circuit, 8 and 16-bit timers, a COP Watchdog timer, LCD
drivers, serial communication interface and P-Decoder. It is targeted for
communication applications such as pagers.

FEATURES
• Industry standard M68HC05 8-bit CPU core
• 16400 bytes of user ROM
• 512 bytes of user RAM (64 bytes for stack)
• 48 bidirectional I/O lines
• 16 output-only lines
• 16-bit timer with Input Capture and Output Compare functions
• COP Watchdog timer
• Serial Communication Interface (SCI)
• LCD drivers (3 or 4 backplane drivers) x (1 to 36 frontplane drivers)
• On-chip Time Base circuits
• Dual oscillators (76.8kHz and 4MHz) and selectable system clock
frequency
• 24-hour Real Time Clock
• 8-bit Event counter / Modulus clock divider
• Key Wake-up Interrupt with 8-bit input
• P-Decoder
• Two IRQ inputs
• Available in 80-pin TQFP package