Features

? Low Cost

? HC05 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

? PC0 and PC1 High-Current Outputs

? Single-Chip, Bootloader, and Test Modes

? Power-Saving Stop, Halt, and Wait Modes

? Static EPROM Mask Option Register (MOR) Selectable Options:

– COP Watchdog Timer Enable or Disable

– Edge-Sensitive or Edge- and Level-Sensitive External

Interrupt

– SIOP Most Significant Bit (MSB) or Least Significant Bit (LSB)

First

– SIOP Clock Rates: OSC Divided by 8, 16, 32, or 64

– Stop Instruction Mode, STOP or HALT

– EPROM Security External Lockout

– Programmable Keyscan (Pullups/Interrupts) on PA0–PA7