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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