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